4221 lines
103 KiB
C
4221 lines
103 KiB
C
/*
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* linux/drivers/video/omap2/dss/dispc.c
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*
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* Copyright (C) 2009 Nokia Corporation
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* Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
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*
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* Some code and ideas taken from drivers/video/omap/ driver
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* by Imre Deak.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published by
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* the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#define DSS_SUBSYS_NAME "DISPC"
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#include <linux/kernel.h>
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#include <linux/dma-mapping.h>
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#include <linux/vmalloc.h>
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#include <linux/export.h>
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#include <linux/clk.h>
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#include <linux/io.h>
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#include <linux/jiffies.h>
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#include <linux/seq_file.h>
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#include <linux/delay.h>
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#include <linux/workqueue.h>
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#include <linux/hardirq.h>
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#include <linux/platform_device.h>
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#include <linux/pm_runtime.h>
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#include <linux/sizes.h>
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#include <linux/mfd/syscon.h>
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#include <linux/regmap.h>
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#include <linux/of.h>
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#include <linux/component.h>
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#include <video/omapfb_dss.h>
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#include "dss.h"
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#include "dss_features.h"
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#include "dispc.h"
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/* DISPC */
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#define DISPC_SZ_REGS SZ_4K
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enum omap_burst_size {
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BURST_SIZE_X2 = 0,
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BURST_SIZE_X4 = 1,
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BURST_SIZE_X8 = 2,
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};
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#define REG_GET(idx, start, end) \
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FLD_GET(dispc_read_reg(idx), start, end)
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#define REG_FLD_MOD(idx, val, start, end) \
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dispc_write_reg(idx, FLD_MOD(dispc_read_reg(idx), val, start, end))
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struct dispc_features {
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u8 sw_start;
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u8 fp_start;
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u8 bp_start;
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u16 sw_max;
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u16 vp_max;
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u16 hp_max;
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u8 mgr_width_start;
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u8 mgr_height_start;
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u16 mgr_width_max;
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u16 mgr_height_max;
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unsigned long max_lcd_pclk;
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unsigned long max_tv_pclk;
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int (*calc_scaling) (unsigned long pclk, unsigned long lclk,
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const struct omap_video_timings *mgr_timings,
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u16 width, u16 height, u16 out_width, u16 out_height,
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enum omap_color_mode color_mode, bool *five_taps,
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int *x_predecim, int *y_predecim, int *decim_x, int *decim_y,
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u16 pos_x, unsigned long *core_clk, bool mem_to_mem);
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unsigned long (*calc_core_clk) (unsigned long pclk,
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u16 width, u16 height, u16 out_width, u16 out_height,
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bool mem_to_mem);
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u8 num_fifos;
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/* swap GFX & WB fifos */
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bool gfx_fifo_workaround:1;
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/* no DISPC_IRQ_FRAMEDONETV on this SoC */
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bool no_framedone_tv:1;
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/* revert to the OMAP4 mechanism of DISPC Smart Standby operation */
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bool mstandby_workaround:1;
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bool set_max_preload:1;
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/* PIXEL_INC is not added to the last pixel of a line */
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bool last_pixel_inc_missing:1;
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/* POL_FREQ has ALIGN bit */
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bool supports_sync_align:1;
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bool has_writeback:1;
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};
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#define DISPC_MAX_NR_FIFOS 5
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static struct {
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struct platform_device *pdev;
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void __iomem *base;
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int irq;
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irq_handler_t user_handler;
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void *user_data;
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unsigned long core_clk_rate;
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unsigned long tv_pclk_rate;
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u32 fifo_size[DISPC_MAX_NR_FIFOS];
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/* maps which plane is using a fifo. fifo-id -> plane-id */
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int fifo_assignment[DISPC_MAX_NR_FIFOS];
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bool ctx_valid;
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u32 ctx[DISPC_SZ_REGS / sizeof(u32)];
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const struct dispc_features *feat;
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bool is_enabled;
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struct regmap *syscon_pol;
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u32 syscon_pol_offset;
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/* DISPC_CONTROL & DISPC_CONFIG lock*/
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spinlock_t control_lock;
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} dispc;
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enum omap_color_component {
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/* used for all color formats for OMAP3 and earlier
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* and for RGB and Y color component on OMAP4
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*/
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DISPC_COLOR_COMPONENT_RGB_Y = 1 << 0,
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/* used for UV component for
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* OMAP_DSS_COLOR_YUV2, OMAP_DSS_COLOR_UYVY, OMAP_DSS_COLOR_NV12
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* color formats on OMAP4
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*/
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DISPC_COLOR_COMPONENT_UV = 1 << 1,
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};
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enum mgr_reg_fields {
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DISPC_MGR_FLD_ENABLE,
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DISPC_MGR_FLD_STNTFT,
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DISPC_MGR_FLD_GO,
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DISPC_MGR_FLD_TFTDATALINES,
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DISPC_MGR_FLD_STALLMODE,
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DISPC_MGR_FLD_TCKENABLE,
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DISPC_MGR_FLD_TCKSELECTION,
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DISPC_MGR_FLD_CPR,
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DISPC_MGR_FLD_FIFOHANDCHECK,
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/* used to maintain a count of the above fields */
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DISPC_MGR_FLD_NUM,
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};
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struct dispc_reg_field {
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u16 reg;
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u8 high;
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u8 low;
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};
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static const struct {
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const char *name;
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u32 vsync_irq;
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u32 framedone_irq;
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u32 sync_lost_irq;
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struct dispc_reg_field reg_desc[DISPC_MGR_FLD_NUM];
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} mgr_desc[] = {
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[OMAP_DSS_CHANNEL_LCD] = {
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.name = "LCD",
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.vsync_irq = DISPC_IRQ_VSYNC,
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.framedone_irq = DISPC_IRQ_FRAMEDONE,
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.sync_lost_irq = DISPC_IRQ_SYNC_LOST,
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.reg_desc = {
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[DISPC_MGR_FLD_ENABLE] = { DISPC_CONTROL, 0, 0 },
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[DISPC_MGR_FLD_STNTFT] = { DISPC_CONTROL, 3, 3 },
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[DISPC_MGR_FLD_GO] = { DISPC_CONTROL, 5, 5 },
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[DISPC_MGR_FLD_TFTDATALINES] = { DISPC_CONTROL, 9, 8 },
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[DISPC_MGR_FLD_STALLMODE] = { DISPC_CONTROL, 11, 11 },
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[DISPC_MGR_FLD_TCKENABLE] = { DISPC_CONFIG, 10, 10 },
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[DISPC_MGR_FLD_TCKSELECTION] = { DISPC_CONFIG, 11, 11 },
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[DISPC_MGR_FLD_CPR] = { DISPC_CONFIG, 15, 15 },
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[DISPC_MGR_FLD_FIFOHANDCHECK] = { DISPC_CONFIG, 16, 16 },
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},
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},
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[OMAP_DSS_CHANNEL_DIGIT] = {
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.name = "DIGIT",
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.vsync_irq = DISPC_IRQ_EVSYNC_ODD | DISPC_IRQ_EVSYNC_EVEN,
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.framedone_irq = DISPC_IRQ_FRAMEDONETV,
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.sync_lost_irq = DISPC_IRQ_SYNC_LOST_DIGIT,
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.reg_desc = {
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[DISPC_MGR_FLD_ENABLE] = { DISPC_CONTROL, 1, 1 },
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[DISPC_MGR_FLD_STNTFT] = { },
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[DISPC_MGR_FLD_GO] = { DISPC_CONTROL, 6, 6 },
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[DISPC_MGR_FLD_TFTDATALINES] = { },
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[DISPC_MGR_FLD_STALLMODE] = { },
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[DISPC_MGR_FLD_TCKENABLE] = { DISPC_CONFIG, 12, 12 },
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[DISPC_MGR_FLD_TCKSELECTION] = { DISPC_CONFIG, 13, 13 },
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[DISPC_MGR_FLD_CPR] = { },
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[DISPC_MGR_FLD_FIFOHANDCHECK] = { DISPC_CONFIG, 16, 16 },
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},
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},
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[OMAP_DSS_CHANNEL_LCD2] = {
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.name = "LCD2",
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.vsync_irq = DISPC_IRQ_VSYNC2,
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.framedone_irq = DISPC_IRQ_FRAMEDONE2,
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.sync_lost_irq = DISPC_IRQ_SYNC_LOST2,
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.reg_desc = {
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[DISPC_MGR_FLD_ENABLE] = { DISPC_CONTROL2, 0, 0 },
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[DISPC_MGR_FLD_STNTFT] = { DISPC_CONTROL2, 3, 3 },
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[DISPC_MGR_FLD_GO] = { DISPC_CONTROL2, 5, 5 },
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[DISPC_MGR_FLD_TFTDATALINES] = { DISPC_CONTROL2, 9, 8 },
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[DISPC_MGR_FLD_STALLMODE] = { DISPC_CONTROL2, 11, 11 },
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[DISPC_MGR_FLD_TCKENABLE] = { DISPC_CONFIG2, 10, 10 },
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[DISPC_MGR_FLD_TCKSELECTION] = { DISPC_CONFIG2, 11, 11 },
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[DISPC_MGR_FLD_CPR] = { DISPC_CONFIG2, 15, 15 },
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[DISPC_MGR_FLD_FIFOHANDCHECK] = { DISPC_CONFIG2, 16, 16 },
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},
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},
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[OMAP_DSS_CHANNEL_LCD3] = {
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.name = "LCD3",
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.vsync_irq = DISPC_IRQ_VSYNC3,
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.framedone_irq = DISPC_IRQ_FRAMEDONE3,
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.sync_lost_irq = DISPC_IRQ_SYNC_LOST3,
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.reg_desc = {
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[DISPC_MGR_FLD_ENABLE] = { DISPC_CONTROL3, 0, 0 },
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[DISPC_MGR_FLD_STNTFT] = { DISPC_CONTROL3, 3, 3 },
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[DISPC_MGR_FLD_GO] = { DISPC_CONTROL3, 5, 5 },
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[DISPC_MGR_FLD_TFTDATALINES] = { DISPC_CONTROL3, 9, 8 },
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[DISPC_MGR_FLD_STALLMODE] = { DISPC_CONTROL3, 11, 11 },
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[DISPC_MGR_FLD_TCKENABLE] = { DISPC_CONFIG3, 10, 10 },
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[DISPC_MGR_FLD_TCKSELECTION] = { DISPC_CONFIG3, 11, 11 },
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[DISPC_MGR_FLD_CPR] = { DISPC_CONFIG3, 15, 15 },
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[DISPC_MGR_FLD_FIFOHANDCHECK] = { DISPC_CONFIG3, 16, 16 },
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},
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},
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};
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struct color_conv_coef {
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int ry, rcr, rcb, gy, gcr, gcb, by, bcr, bcb;
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int full_range;
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};
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static unsigned long dispc_fclk_rate(void);
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static unsigned long dispc_core_clk_rate(void);
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static unsigned long dispc_mgr_lclk_rate(enum omap_channel channel);
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static unsigned long dispc_mgr_pclk_rate(enum omap_channel channel);
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static unsigned long dispc_plane_pclk_rate(enum omap_plane plane);
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static unsigned long dispc_plane_lclk_rate(enum omap_plane plane);
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static inline void dispc_write_reg(const u16 idx, u32 val)
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{
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__raw_writel(val, dispc.base + idx);
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}
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static inline u32 dispc_read_reg(const u16 idx)
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{
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return __raw_readl(dispc.base + idx);
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}
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static u32 mgr_fld_read(enum omap_channel channel, enum mgr_reg_fields regfld)
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{
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const struct dispc_reg_field rfld = mgr_desc[channel].reg_desc[regfld];
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return REG_GET(rfld.reg, rfld.high, rfld.low);
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}
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static void mgr_fld_write(enum omap_channel channel,
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enum mgr_reg_fields regfld, int val) {
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const struct dispc_reg_field rfld = mgr_desc[channel].reg_desc[regfld];
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const bool need_lock = rfld.reg == DISPC_CONTROL || rfld.reg == DISPC_CONFIG;
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unsigned long flags;
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if (need_lock)
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spin_lock_irqsave(&dispc.control_lock, flags);
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REG_FLD_MOD(rfld.reg, val, rfld.high, rfld.low);
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if (need_lock)
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spin_unlock_irqrestore(&dispc.control_lock, flags);
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}
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#define SR(reg) \
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dispc.ctx[DISPC_##reg / sizeof(u32)] = dispc_read_reg(DISPC_##reg)
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#define RR(reg) \
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dispc_write_reg(DISPC_##reg, dispc.ctx[DISPC_##reg / sizeof(u32)])
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static void dispc_save_context(void)
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{
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int i, j;
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DSSDBG("dispc_save_context\n");
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SR(IRQENABLE);
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SR(CONTROL);
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SR(CONFIG);
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SR(LINE_NUMBER);
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if (dss_has_feature(FEAT_ALPHA_FIXED_ZORDER) ||
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dss_has_feature(FEAT_ALPHA_FREE_ZORDER))
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SR(GLOBAL_ALPHA);
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if (dss_has_feature(FEAT_MGR_LCD2)) {
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SR(CONTROL2);
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SR(CONFIG2);
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}
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if (dss_has_feature(FEAT_MGR_LCD3)) {
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SR(CONTROL3);
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SR(CONFIG3);
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}
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for (i = 0; i < dss_feat_get_num_mgrs(); i++) {
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SR(DEFAULT_COLOR(i));
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SR(TRANS_COLOR(i));
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SR(SIZE_MGR(i));
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if (i == OMAP_DSS_CHANNEL_DIGIT)
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continue;
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SR(TIMING_H(i));
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SR(TIMING_V(i));
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SR(POL_FREQ(i));
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SR(DIVISORo(i));
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SR(DATA_CYCLE1(i));
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SR(DATA_CYCLE2(i));
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SR(DATA_CYCLE3(i));
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if (dss_has_feature(FEAT_CPR)) {
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SR(CPR_COEF_R(i));
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SR(CPR_COEF_G(i));
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SR(CPR_COEF_B(i));
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}
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}
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for (i = 0; i < dss_feat_get_num_ovls(); i++) {
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SR(OVL_BA0(i));
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SR(OVL_BA1(i));
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SR(OVL_POSITION(i));
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SR(OVL_SIZE(i));
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SR(OVL_ATTRIBUTES(i));
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SR(OVL_FIFO_THRESHOLD(i));
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SR(OVL_ROW_INC(i));
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SR(OVL_PIXEL_INC(i));
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if (dss_has_feature(FEAT_PRELOAD))
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SR(OVL_PRELOAD(i));
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if (i == OMAP_DSS_GFX) {
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SR(OVL_WINDOW_SKIP(i));
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SR(OVL_TABLE_BA(i));
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continue;
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}
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SR(OVL_FIR(i));
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SR(OVL_PICTURE_SIZE(i));
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SR(OVL_ACCU0(i));
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SR(OVL_ACCU1(i));
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for (j = 0; j < 8; j++)
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SR(OVL_FIR_COEF_H(i, j));
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for (j = 0; j < 8; j++)
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SR(OVL_FIR_COEF_HV(i, j));
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for (j = 0; j < 5; j++)
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SR(OVL_CONV_COEF(i, j));
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if (dss_has_feature(FEAT_FIR_COEF_V)) {
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for (j = 0; j < 8; j++)
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SR(OVL_FIR_COEF_V(i, j));
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}
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if (dss_has_feature(FEAT_HANDLE_UV_SEPARATE)) {
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SR(OVL_BA0_UV(i));
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SR(OVL_BA1_UV(i));
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SR(OVL_FIR2(i));
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SR(OVL_ACCU2_0(i));
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SR(OVL_ACCU2_1(i));
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for (j = 0; j < 8; j++)
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SR(OVL_FIR_COEF_H2(i, j));
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for (j = 0; j < 8; j++)
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SR(OVL_FIR_COEF_HV2(i, j));
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for (j = 0; j < 8; j++)
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SR(OVL_FIR_COEF_V2(i, j));
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}
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if (dss_has_feature(FEAT_ATTR2))
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SR(OVL_ATTRIBUTES2(i));
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}
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if (dss_has_feature(FEAT_CORE_CLK_DIV))
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SR(DIVISOR);
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dispc.ctx_valid = true;
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DSSDBG("context saved\n");
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}
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static void dispc_restore_context(void)
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{
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int i, j;
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DSSDBG("dispc_restore_context\n");
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if (!dispc.ctx_valid)
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return;
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/*RR(IRQENABLE);*/
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/*RR(CONTROL);*/
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RR(CONFIG);
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RR(LINE_NUMBER);
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if (dss_has_feature(FEAT_ALPHA_FIXED_ZORDER) ||
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dss_has_feature(FEAT_ALPHA_FREE_ZORDER))
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RR(GLOBAL_ALPHA);
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if (dss_has_feature(FEAT_MGR_LCD2))
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RR(CONFIG2);
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if (dss_has_feature(FEAT_MGR_LCD3))
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RR(CONFIG3);
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for (i = 0; i < dss_feat_get_num_mgrs(); i++) {
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RR(DEFAULT_COLOR(i));
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RR(TRANS_COLOR(i));
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RR(SIZE_MGR(i));
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if (i == OMAP_DSS_CHANNEL_DIGIT)
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continue;
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RR(TIMING_H(i));
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RR(TIMING_V(i));
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RR(POL_FREQ(i));
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RR(DIVISORo(i));
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RR(DATA_CYCLE1(i));
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RR(DATA_CYCLE2(i));
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RR(DATA_CYCLE3(i));
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if (dss_has_feature(FEAT_CPR)) {
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RR(CPR_COEF_R(i));
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RR(CPR_COEF_G(i));
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RR(CPR_COEF_B(i));
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}
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}
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for (i = 0; i < dss_feat_get_num_ovls(); i++) {
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RR(OVL_BA0(i));
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RR(OVL_BA1(i));
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RR(OVL_POSITION(i));
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RR(OVL_SIZE(i));
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RR(OVL_ATTRIBUTES(i));
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RR(OVL_FIFO_THRESHOLD(i));
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RR(OVL_ROW_INC(i));
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RR(OVL_PIXEL_INC(i));
|
|
if (dss_has_feature(FEAT_PRELOAD))
|
|
RR(OVL_PRELOAD(i));
|
|
if (i == OMAP_DSS_GFX) {
|
|
RR(OVL_WINDOW_SKIP(i));
|
|
RR(OVL_TABLE_BA(i));
|
|
continue;
|
|
}
|
|
RR(OVL_FIR(i));
|
|
RR(OVL_PICTURE_SIZE(i));
|
|
RR(OVL_ACCU0(i));
|
|
RR(OVL_ACCU1(i));
|
|
|
|
for (j = 0; j < 8; j++)
|
|
RR(OVL_FIR_COEF_H(i, j));
|
|
|
|
for (j = 0; j < 8; j++)
|
|
RR(OVL_FIR_COEF_HV(i, j));
|
|
|
|
for (j = 0; j < 5; j++)
|
|
RR(OVL_CONV_COEF(i, j));
|
|
|
|
if (dss_has_feature(FEAT_FIR_COEF_V)) {
|
|
for (j = 0; j < 8; j++)
|
|
RR(OVL_FIR_COEF_V(i, j));
|
|
}
|
|
|
|
if (dss_has_feature(FEAT_HANDLE_UV_SEPARATE)) {
|
|
RR(OVL_BA0_UV(i));
|
|
RR(OVL_BA1_UV(i));
|
|
RR(OVL_FIR2(i));
|
|
RR(OVL_ACCU2_0(i));
|
|
RR(OVL_ACCU2_1(i));
|
|
|
|
for (j = 0; j < 8; j++)
|
|
RR(OVL_FIR_COEF_H2(i, j));
|
|
|
|
for (j = 0; j < 8; j++)
|
|
RR(OVL_FIR_COEF_HV2(i, j));
|
|
|
|
for (j = 0; j < 8; j++)
|
|
RR(OVL_FIR_COEF_V2(i, j));
|
|
}
|
|
if (dss_has_feature(FEAT_ATTR2))
|
|
RR(OVL_ATTRIBUTES2(i));
|
|
}
|
|
|
|
if (dss_has_feature(FEAT_CORE_CLK_DIV))
|
|
RR(DIVISOR);
|
|
|
|
/* enable last, because LCD & DIGIT enable are here */
|
|
RR(CONTROL);
|
|
if (dss_has_feature(FEAT_MGR_LCD2))
|
|
RR(CONTROL2);
|
|
if (dss_has_feature(FEAT_MGR_LCD3))
|
|
RR(CONTROL3);
|
|
/* clear spurious SYNC_LOST_DIGIT interrupts */
|
|
dispc_clear_irqstatus(DISPC_IRQ_SYNC_LOST_DIGIT);
|
|
|
|
/*
|
|
* enable last so IRQs won't trigger before
|
|
* the context is fully restored
|
|
*/
|
|
RR(IRQENABLE);
|
|
|
|
DSSDBG("context restored\n");
|
|
}
|
|
|
|
#undef SR
|
|
#undef RR
|
|
|
|
int dispc_runtime_get(void)
|
|
{
|
|
int r;
|
|
|
|
DSSDBG("dispc_runtime_get\n");
|
|
|
|
r = pm_runtime_get_sync(&dispc.pdev->dev);
|
|
if (WARN_ON(r < 0)) {
|
|
pm_runtime_put_sync(&dispc.pdev->dev);
|
|
return r;
|
|
}
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(dispc_runtime_get);
|
|
|
|
void dispc_runtime_put(void)
|
|
{
|
|
int r;
|
|
|
|
DSSDBG("dispc_runtime_put\n");
|
|
|
|
r = pm_runtime_put_sync(&dispc.pdev->dev);
|
|
WARN_ON(r < 0 && r != -ENOSYS);
|
|
}
|
|
EXPORT_SYMBOL(dispc_runtime_put);
|
|
|
|
u32 dispc_mgr_get_vsync_irq(enum omap_channel channel)
|
|
{
|
|
return mgr_desc[channel].vsync_irq;
|
|
}
|
|
EXPORT_SYMBOL(dispc_mgr_get_vsync_irq);
|
|
|
|
u32 dispc_mgr_get_framedone_irq(enum omap_channel channel)
|
|
{
|
|
if (channel == OMAP_DSS_CHANNEL_DIGIT && dispc.feat->no_framedone_tv)
|
|
return 0;
|
|
|
|
return mgr_desc[channel].framedone_irq;
|
|
}
|
|
EXPORT_SYMBOL(dispc_mgr_get_framedone_irq);
|
|
|
|
u32 dispc_mgr_get_sync_lost_irq(enum omap_channel channel)
|
|
{
|
|
return mgr_desc[channel].sync_lost_irq;
|
|
}
|
|
EXPORT_SYMBOL(dispc_mgr_get_sync_lost_irq);
|
|
|
|
u32 dispc_wb_get_framedone_irq(void)
|
|
{
|
|
return DISPC_IRQ_FRAMEDONEWB;
|
|
}
|
|
|
|
bool dispc_mgr_go_busy(enum omap_channel channel)
|
|
{
|
|
return mgr_fld_read(channel, DISPC_MGR_FLD_GO) == 1;
|
|
}
|
|
EXPORT_SYMBOL(dispc_mgr_go_busy);
|
|
|
|
void dispc_mgr_go(enum omap_channel channel)
|
|
{
|
|
WARN_ON(!dispc_mgr_is_enabled(channel));
|
|
WARN_ON(dispc_mgr_go_busy(channel));
|
|
|
|
DSSDBG("GO %s\n", mgr_desc[channel].name);
|
|
|
|
mgr_fld_write(channel, DISPC_MGR_FLD_GO, 1);
|
|
}
|
|
EXPORT_SYMBOL(dispc_mgr_go);
|
|
|
|
bool dispc_wb_go_busy(void)
|
|
{
|
|
return REG_GET(DISPC_CONTROL2, 6, 6) == 1;
|
|
}
|
|
|
|
void dispc_wb_go(void)
|
|
{
|
|
enum omap_plane plane = OMAP_DSS_WB;
|
|
bool enable, go;
|
|
|
|
enable = REG_GET(DISPC_OVL_ATTRIBUTES(plane), 0, 0) == 1;
|
|
|
|
if (!enable)
|
|
return;
|
|
|
|
go = REG_GET(DISPC_CONTROL2, 6, 6) == 1;
|
|
if (go) {
|
|
DSSERR("GO bit not down for WB\n");
|
|
return;
|
|
}
|
|
|
|
REG_FLD_MOD(DISPC_CONTROL2, 1, 6, 6);
|
|
}
|
|
|
|
static void dispc_ovl_write_firh_reg(enum omap_plane plane, int reg, u32 value)
|
|
{
|
|
dispc_write_reg(DISPC_OVL_FIR_COEF_H(plane, reg), value);
|
|
}
|
|
|
|
static void dispc_ovl_write_firhv_reg(enum omap_plane plane, int reg, u32 value)
|
|
{
|
|
dispc_write_reg(DISPC_OVL_FIR_COEF_HV(plane, reg), value);
|
|
}
|
|
|
|
static void dispc_ovl_write_firv_reg(enum omap_plane plane, int reg, u32 value)
|
|
{
|
|
dispc_write_reg(DISPC_OVL_FIR_COEF_V(plane, reg), value);
|
|
}
|
|
|
|
static void dispc_ovl_write_firh2_reg(enum omap_plane plane, int reg, u32 value)
|
|
{
|
|
BUG_ON(plane == OMAP_DSS_GFX);
|
|
|
|
dispc_write_reg(DISPC_OVL_FIR_COEF_H2(plane, reg), value);
|
|
}
|
|
|
|
static void dispc_ovl_write_firhv2_reg(enum omap_plane plane, int reg,
|
|
u32 value)
|
|
{
|
|
BUG_ON(plane == OMAP_DSS_GFX);
|
|
|
|
dispc_write_reg(DISPC_OVL_FIR_COEF_HV2(plane, reg), value);
|
|
}
|
|
|
|
static void dispc_ovl_write_firv2_reg(enum omap_plane plane, int reg, u32 value)
|
|
{
|
|
BUG_ON(plane == OMAP_DSS_GFX);
|
|
|
|
dispc_write_reg(DISPC_OVL_FIR_COEF_V2(plane, reg), value);
|
|
}
|
|
|
|
static void dispc_ovl_set_scale_coef(enum omap_plane plane, int fir_hinc,
|
|
int fir_vinc, int five_taps,
|
|
enum omap_color_component color_comp)
|
|
{
|
|
const struct dispc_coef *h_coef, *v_coef;
|
|
int i;
|
|
|
|
h_coef = dispc_ovl_get_scale_coef(fir_hinc, true);
|
|
v_coef = dispc_ovl_get_scale_coef(fir_vinc, five_taps);
|
|
|
|
for (i = 0; i < 8; i++) {
|
|
u32 h, hv;
|
|
|
|
h = FLD_VAL(h_coef[i].hc0_vc00, 7, 0)
|
|
| FLD_VAL(h_coef[i].hc1_vc0, 15, 8)
|
|
| FLD_VAL(h_coef[i].hc2_vc1, 23, 16)
|
|
| FLD_VAL(h_coef[i].hc3_vc2, 31, 24);
|
|
hv = FLD_VAL(h_coef[i].hc4_vc22, 7, 0)
|
|
| FLD_VAL(v_coef[i].hc1_vc0, 15, 8)
|
|
| FLD_VAL(v_coef[i].hc2_vc1, 23, 16)
|
|
| FLD_VAL(v_coef[i].hc3_vc2, 31, 24);
|
|
|
|
if (color_comp == DISPC_COLOR_COMPONENT_RGB_Y) {
|
|
dispc_ovl_write_firh_reg(plane, i, h);
|
|
dispc_ovl_write_firhv_reg(plane, i, hv);
|
|
} else {
|
|
dispc_ovl_write_firh2_reg(plane, i, h);
|
|
dispc_ovl_write_firhv2_reg(plane, i, hv);
|
|
}
|
|
|
|
}
|
|
|
|
if (five_taps) {
|
|
for (i = 0; i < 8; i++) {
|
|
u32 v;
|
|
v = FLD_VAL(v_coef[i].hc0_vc00, 7, 0)
|
|
| FLD_VAL(v_coef[i].hc4_vc22, 15, 8);
|
|
if (color_comp == DISPC_COLOR_COMPONENT_RGB_Y)
|
|
dispc_ovl_write_firv_reg(plane, i, v);
|
|
else
|
|
dispc_ovl_write_firv2_reg(plane, i, v);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
static void dispc_ovl_write_color_conv_coef(enum omap_plane plane,
|
|
const struct color_conv_coef *ct)
|
|
{
|
|
#define CVAL(x, y) (FLD_VAL(x, 26, 16) | FLD_VAL(y, 10, 0))
|
|
|
|
dispc_write_reg(DISPC_OVL_CONV_COEF(plane, 0), CVAL(ct->rcr, ct->ry));
|
|
dispc_write_reg(DISPC_OVL_CONV_COEF(plane, 1), CVAL(ct->gy, ct->rcb));
|
|
dispc_write_reg(DISPC_OVL_CONV_COEF(plane, 2), CVAL(ct->gcb, ct->gcr));
|
|
dispc_write_reg(DISPC_OVL_CONV_COEF(plane, 3), CVAL(ct->bcr, ct->by));
|
|
dispc_write_reg(DISPC_OVL_CONV_COEF(plane, 4), CVAL(0, ct->bcb));
|
|
|
|
REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(plane), ct->full_range, 11, 11);
|
|
|
|
#undef CVAL
|
|
}
|
|
|
|
static void dispc_setup_color_conv_coef(void)
|
|
{
|
|
int i;
|
|
int num_ovl = dss_feat_get_num_ovls();
|
|
const struct color_conv_coef ctbl_bt601_5_ovl = {
|
|
/* YUV -> RGB */
|
|
298, 409, 0, 298, -208, -100, 298, 0, 517, 0,
|
|
};
|
|
const struct color_conv_coef ctbl_bt601_5_wb = {
|
|
/* RGB -> YUV */
|
|
66, 129, 25, 112, -94, -18, -38, -74, 112, 0,
|
|
};
|
|
|
|
for (i = 1; i < num_ovl; i++)
|
|
dispc_ovl_write_color_conv_coef(i, &ctbl_bt601_5_ovl);
|
|
|
|
if (dispc.feat->has_writeback)
|
|
dispc_ovl_write_color_conv_coef(OMAP_DSS_WB, &ctbl_bt601_5_wb);
|
|
}
|
|
|
|
static void dispc_ovl_set_ba0(enum omap_plane plane, u32 paddr)
|
|
{
|
|
dispc_write_reg(DISPC_OVL_BA0(plane), paddr);
|
|
}
|
|
|
|
static void dispc_ovl_set_ba1(enum omap_plane plane, u32 paddr)
|
|
{
|
|
dispc_write_reg(DISPC_OVL_BA1(plane), paddr);
|
|
}
|
|
|
|
static void dispc_ovl_set_ba0_uv(enum omap_plane plane, u32 paddr)
|
|
{
|
|
dispc_write_reg(DISPC_OVL_BA0_UV(plane), paddr);
|
|
}
|
|
|
|
static void dispc_ovl_set_ba1_uv(enum omap_plane plane, u32 paddr)
|
|
{
|
|
dispc_write_reg(DISPC_OVL_BA1_UV(plane), paddr);
|
|
}
|
|
|
|
static void dispc_ovl_set_pos(enum omap_plane plane,
|
|
enum omap_overlay_caps caps, int x, int y)
|
|
{
|
|
u32 val;
|
|
|
|
if ((caps & OMAP_DSS_OVL_CAP_POS) == 0)
|
|
return;
|
|
|
|
val = FLD_VAL(y, 26, 16) | FLD_VAL(x, 10, 0);
|
|
|
|
dispc_write_reg(DISPC_OVL_POSITION(plane), val);
|
|
}
|
|
|
|
static void dispc_ovl_set_input_size(enum omap_plane plane, int width,
|
|
int height)
|
|
{
|
|
u32 val = FLD_VAL(height - 1, 26, 16) | FLD_VAL(width - 1, 10, 0);
|
|
|
|
if (plane == OMAP_DSS_GFX || plane == OMAP_DSS_WB)
|
|
dispc_write_reg(DISPC_OVL_SIZE(plane), val);
|
|
else
|
|
dispc_write_reg(DISPC_OVL_PICTURE_SIZE(plane), val);
|
|
}
|
|
|
|
static void dispc_ovl_set_output_size(enum omap_plane plane, int width,
|
|
int height)
|
|
{
|
|
u32 val;
|
|
|
|
BUG_ON(plane == OMAP_DSS_GFX);
|
|
|
|
val = FLD_VAL(height - 1, 26, 16) | FLD_VAL(width - 1, 10, 0);
|
|
|
|
if (plane == OMAP_DSS_WB)
|
|
dispc_write_reg(DISPC_OVL_PICTURE_SIZE(plane), val);
|
|
else
|
|
dispc_write_reg(DISPC_OVL_SIZE(plane), val);
|
|
}
|
|
|
|
static void dispc_ovl_set_zorder(enum omap_plane plane,
|
|
enum omap_overlay_caps caps, u8 zorder)
|
|
{
|
|
if ((caps & OMAP_DSS_OVL_CAP_ZORDER) == 0)
|
|
return;
|
|
|
|
REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(plane), zorder, 27, 26);
|
|
}
|
|
|
|
static void dispc_ovl_enable_zorder_planes(void)
|
|
{
|
|
int i;
|
|
|
|
if (!dss_has_feature(FEAT_ALPHA_FREE_ZORDER))
|
|
return;
|
|
|
|
for (i = 0; i < dss_feat_get_num_ovls(); i++)
|
|
REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(i), 1, 25, 25);
|
|
}
|
|
|
|
static void dispc_ovl_set_pre_mult_alpha(enum omap_plane plane,
|
|
enum omap_overlay_caps caps, bool enable)
|
|
{
|
|
if ((caps & OMAP_DSS_OVL_CAP_PRE_MULT_ALPHA) == 0)
|
|
return;
|
|
|
|
REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(plane), enable ? 1 : 0, 28, 28);
|
|
}
|
|
|
|
static void dispc_ovl_setup_global_alpha(enum omap_plane plane,
|
|
enum omap_overlay_caps caps, u8 global_alpha)
|
|
{
|
|
static const unsigned shifts[] = { 0, 8, 16, 24, };
|
|
int shift;
|
|
|
|
if ((caps & OMAP_DSS_OVL_CAP_GLOBAL_ALPHA) == 0)
|
|
return;
|
|
|
|
shift = shifts[plane];
|
|
REG_FLD_MOD(DISPC_GLOBAL_ALPHA, global_alpha, shift + 7, shift);
|
|
}
|
|
|
|
static void dispc_ovl_set_pix_inc(enum omap_plane plane, s32 inc)
|
|
{
|
|
dispc_write_reg(DISPC_OVL_PIXEL_INC(plane), inc);
|
|
}
|
|
|
|
static void dispc_ovl_set_row_inc(enum omap_plane plane, s32 inc)
|
|
{
|
|
dispc_write_reg(DISPC_OVL_ROW_INC(plane), inc);
|
|
}
|
|
|
|
static void dispc_ovl_set_color_mode(enum omap_plane plane,
|
|
enum omap_color_mode color_mode)
|
|
{
|
|
u32 m = 0;
|
|
if (plane != OMAP_DSS_GFX) {
|
|
switch (color_mode) {
|
|
case OMAP_DSS_COLOR_NV12:
|
|
m = 0x0; break;
|
|
case OMAP_DSS_COLOR_RGBX16:
|
|
m = 0x1; break;
|
|
case OMAP_DSS_COLOR_RGBA16:
|
|
m = 0x2; break;
|
|
case OMAP_DSS_COLOR_RGB12U:
|
|
m = 0x4; break;
|
|
case OMAP_DSS_COLOR_ARGB16:
|
|
m = 0x5; break;
|
|
case OMAP_DSS_COLOR_RGB16:
|
|
m = 0x6; break;
|
|
case OMAP_DSS_COLOR_ARGB16_1555:
|
|
m = 0x7; break;
|
|
case OMAP_DSS_COLOR_RGB24U:
|
|
m = 0x8; break;
|
|
case OMAP_DSS_COLOR_RGB24P:
|
|
m = 0x9; break;
|
|
case OMAP_DSS_COLOR_YUV2:
|
|
m = 0xa; break;
|
|
case OMAP_DSS_COLOR_UYVY:
|
|
m = 0xb; break;
|
|
case OMAP_DSS_COLOR_ARGB32:
|
|
m = 0xc; break;
|
|
case OMAP_DSS_COLOR_RGBA32:
|
|
m = 0xd; break;
|
|
case OMAP_DSS_COLOR_RGBX32:
|
|
m = 0xe; break;
|
|
case OMAP_DSS_COLOR_XRGB16_1555:
|
|
m = 0xf; break;
|
|
default:
|
|
BUG(); return;
|
|
}
|
|
} else {
|
|
switch (color_mode) {
|
|
case OMAP_DSS_COLOR_CLUT1:
|
|
m = 0x0; break;
|
|
case OMAP_DSS_COLOR_CLUT2:
|
|
m = 0x1; break;
|
|
case OMAP_DSS_COLOR_CLUT4:
|
|
m = 0x2; break;
|
|
case OMAP_DSS_COLOR_CLUT8:
|
|
m = 0x3; break;
|
|
case OMAP_DSS_COLOR_RGB12U:
|
|
m = 0x4; break;
|
|
case OMAP_DSS_COLOR_ARGB16:
|
|
m = 0x5; break;
|
|
case OMAP_DSS_COLOR_RGB16:
|
|
m = 0x6; break;
|
|
case OMAP_DSS_COLOR_ARGB16_1555:
|
|
m = 0x7; break;
|
|
case OMAP_DSS_COLOR_RGB24U:
|
|
m = 0x8; break;
|
|
case OMAP_DSS_COLOR_RGB24P:
|
|
m = 0x9; break;
|
|
case OMAP_DSS_COLOR_RGBX16:
|
|
m = 0xa; break;
|
|
case OMAP_DSS_COLOR_RGBA16:
|
|
m = 0xb; break;
|
|
case OMAP_DSS_COLOR_ARGB32:
|
|
m = 0xc; break;
|
|
case OMAP_DSS_COLOR_RGBA32:
|
|
m = 0xd; break;
|
|
case OMAP_DSS_COLOR_RGBX32:
|
|
m = 0xe; break;
|
|
case OMAP_DSS_COLOR_XRGB16_1555:
|
|
m = 0xf; break;
|
|
default:
|
|
BUG(); return;
|
|
}
|
|
}
|
|
|
|
REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(plane), m, 4, 1);
|
|
}
|
|
|
|
static void dispc_ovl_configure_burst_type(enum omap_plane plane,
|
|
enum omap_dss_rotation_type rotation_type)
|
|
{
|
|
if (dss_has_feature(FEAT_BURST_2D) == 0)
|
|
return;
|
|
|
|
if (rotation_type == OMAP_DSS_ROT_TILER)
|
|
REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(plane), 1, 29, 29);
|
|
else
|
|
REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(plane), 0, 29, 29);
|
|
}
|
|
|
|
void dispc_ovl_set_channel_out(enum omap_plane plane, enum omap_channel channel)
|
|
{
|
|
int shift;
|
|
u32 val;
|
|
int chan = 0, chan2 = 0;
|
|
|
|
switch (plane) {
|
|
case OMAP_DSS_GFX:
|
|
shift = 8;
|
|
break;
|
|
case OMAP_DSS_VIDEO1:
|
|
case OMAP_DSS_VIDEO2:
|
|
case OMAP_DSS_VIDEO3:
|
|
shift = 16;
|
|
break;
|
|
default:
|
|
BUG();
|
|
return;
|
|
}
|
|
|
|
val = dispc_read_reg(DISPC_OVL_ATTRIBUTES(plane));
|
|
if (dss_has_feature(FEAT_MGR_LCD2)) {
|
|
switch (channel) {
|
|
case OMAP_DSS_CHANNEL_LCD:
|
|
chan = 0;
|
|
chan2 = 0;
|
|
break;
|
|
case OMAP_DSS_CHANNEL_DIGIT:
|
|
chan = 1;
|
|
chan2 = 0;
|
|
break;
|
|
case OMAP_DSS_CHANNEL_LCD2:
|
|
chan = 0;
|
|
chan2 = 1;
|
|
break;
|
|
case OMAP_DSS_CHANNEL_LCD3:
|
|
if (dss_has_feature(FEAT_MGR_LCD3)) {
|
|
chan = 0;
|
|
chan2 = 2;
|
|
} else {
|
|
BUG();
|
|
return;
|
|
}
|
|
break;
|
|
case OMAP_DSS_CHANNEL_WB:
|
|
chan = 0;
|
|
chan2 = 3;
|
|
break;
|
|
default:
|
|
BUG();
|
|
return;
|
|
}
|
|
|
|
val = FLD_MOD(val, chan, shift, shift);
|
|
val = FLD_MOD(val, chan2, 31, 30);
|
|
} else {
|
|
val = FLD_MOD(val, channel, shift, shift);
|
|
}
|
|
dispc_write_reg(DISPC_OVL_ATTRIBUTES(plane), val);
|
|
}
|
|
EXPORT_SYMBOL(dispc_ovl_set_channel_out);
|
|
|
|
static enum omap_channel dispc_ovl_get_channel_out(enum omap_plane plane)
|
|
{
|
|
int shift;
|
|
u32 val;
|
|
|
|
switch (plane) {
|
|
case OMAP_DSS_GFX:
|
|
shift = 8;
|
|
break;
|
|
case OMAP_DSS_VIDEO1:
|
|
case OMAP_DSS_VIDEO2:
|
|
case OMAP_DSS_VIDEO3:
|
|
shift = 16;
|
|
break;
|
|
default:
|
|
BUG();
|
|
return 0;
|
|
}
|
|
|
|
val = dispc_read_reg(DISPC_OVL_ATTRIBUTES(plane));
|
|
|
|
if (FLD_GET(val, shift, shift) == 1)
|
|
return OMAP_DSS_CHANNEL_DIGIT;
|
|
|
|
if (!dss_has_feature(FEAT_MGR_LCD2))
|
|
return OMAP_DSS_CHANNEL_LCD;
|
|
|
|
switch (FLD_GET(val, 31, 30)) {
|
|
case 0:
|
|
default:
|
|
return OMAP_DSS_CHANNEL_LCD;
|
|
case 1:
|
|
return OMAP_DSS_CHANNEL_LCD2;
|
|
case 2:
|
|
return OMAP_DSS_CHANNEL_LCD3;
|
|
case 3:
|
|
return OMAP_DSS_CHANNEL_WB;
|
|
}
|
|
}
|
|
|
|
void dispc_wb_set_channel_in(enum dss_writeback_channel channel)
|
|
{
|
|
enum omap_plane plane = OMAP_DSS_WB;
|
|
|
|
REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(plane), channel, 18, 16);
|
|
}
|
|
|
|
static void dispc_ovl_set_burst_size(enum omap_plane plane,
|
|
enum omap_burst_size burst_size)
|
|
{
|
|
static const unsigned shifts[] = { 6, 14, 14, 14, 14, };
|
|
int shift;
|
|
|
|
shift = shifts[plane];
|
|
REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(plane), burst_size, shift + 1, shift);
|
|
}
|
|
|
|
static void dispc_configure_burst_sizes(void)
|
|
{
|
|
int i;
|
|
const int burst_size = BURST_SIZE_X8;
|
|
|
|
/* Configure burst size always to maximum size */
|
|
for (i = 0; i < dss_feat_get_num_ovls(); ++i)
|
|
dispc_ovl_set_burst_size(i, burst_size);
|
|
if (dispc.feat->has_writeback)
|
|
dispc_ovl_set_burst_size(OMAP_DSS_WB, burst_size);
|
|
}
|
|
|
|
static u32 dispc_ovl_get_burst_size(enum omap_plane plane)
|
|
{
|
|
unsigned unit = dss_feat_get_burst_size_unit();
|
|
/* burst multiplier is always x8 (see dispc_configure_burst_sizes()) */
|
|
return unit * 8;
|
|
}
|
|
|
|
void dispc_enable_gamma_table(bool enable)
|
|
{
|
|
/*
|
|
* This is partially implemented to support only disabling of
|
|
* the gamma table.
|
|
*/
|
|
if (enable) {
|
|
DSSWARN("Gamma table enabling for TV not yet supported");
|
|
return;
|
|
}
|
|
|
|
REG_FLD_MOD(DISPC_CONFIG, enable, 9, 9);
|
|
}
|
|
|
|
static void dispc_mgr_enable_cpr(enum omap_channel channel, bool enable)
|
|
{
|
|
if (channel == OMAP_DSS_CHANNEL_DIGIT)
|
|
return;
|
|
|
|
mgr_fld_write(channel, DISPC_MGR_FLD_CPR, enable);
|
|
}
|
|
|
|
static void dispc_mgr_set_cpr_coef(enum omap_channel channel,
|
|
const struct omap_dss_cpr_coefs *coefs)
|
|
{
|
|
u32 coef_r, coef_g, coef_b;
|
|
|
|
if (!dss_mgr_is_lcd(channel))
|
|
return;
|
|
|
|
coef_r = FLD_VAL(coefs->rr, 31, 22) | FLD_VAL(coefs->rg, 20, 11) |
|
|
FLD_VAL(coefs->rb, 9, 0);
|
|
coef_g = FLD_VAL(coefs->gr, 31, 22) | FLD_VAL(coefs->gg, 20, 11) |
|
|
FLD_VAL(coefs->gb, 9, 0);
|
|
coef_b = FLD_VAL(coefs->br, 31, 22) | FLD_VAL(coefs->bg, 20, 11) |
|
|
FLD_VAL(coefs->bb, 9, 0);
|
|
|
|
dispc_write_reg(DISPC_CPR_COEF_R(channel), coef_r);
|
|
dispc_write_reg(DISPC_CPR_COEF_G(channel), coef_g);
|
|
dispc_write_reg(DISPC_CPR_COEF_B(channel), coef_b);
|
|
}
|
|
|
|
static void dispc_ovl_set_vid_color_conv(enum omap_plane plane, bool enable)
|
|
{
|
|
u32 val;
|
|
|
|
BUG_ON(plane == OMAP_DSS_GFX);
|
|
|
|
val = dispc_read_reg(DISPC_OVL_ATTRIBUTES(plane));
|
|
val = FLD_MOD(val, enable, 9, 9);
|
|
dispc_write_reg(DISPC_OVL_ATTRIBUTES(plane), val);
|
|
}
|
|
|
|
static void dispc_ovl_enable_replication(enum omap_plane plane,
|
|
enum omap_overlay_caps caps, bool enable)
|
|
{
|
|
static const unsigned shifts[] = { 5, 10, 10, 10 };
|
|
int shift;
|
|
|
|
if ((caps & OMAP_DSS_OVL_CAP_REPLICATION) == 0)
|
|
return;
|
|
|
|
shift = shifts[plane];
|
|
REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(plane), enable, shift, shift);
|
|
}
|
|
|
|
static void dispc_mgr_set_size(enum omap_channel channel, u16 width,
|
|
u16 height)
|
|
{
|
|
u32 val;
|
|
|
|
val = FLD_VAL(height - 1, dispc.feat->mgr_height_start, 16) |
|
|
FLD_VAL(width - 1, dispc.feat->mgr_width_start, 0);
|
|
|
|
dispc_write_reg(DISPC_SIZE_MGR(channel), val);
|
|
}
|
|
|
|
static void dispc_init_fifos(void)
|
|
{
|
|
u32 size;
|
|
int fifo;
|
|
u8 start, end;
|
|
u32 unit;
|
|
int i;
|
|
|
|
unit = dss_feat_get_buffer_size_unit();
|
|
|
|
dss_feat_get_reg_field(FEAT_REG_FIFOSIZE, &start, &end);
|
|
|
|
for (fifo = 0; fifo < dispc.feat->num_fifos; ++fifo) {
|
|
size = REG_GET(DISPC_OVL_FIFO_SIZE_STATUS(fifo), start, end);
|
|
size *= unit;
|
|
dispc.fifo_size[fifo] = size;
|
|
|
|
/*
|
|
* By default fifos are mapped directly to overlays, fifo 0 to
|
|
* ovl 0, fifo 1 to ovl 1, etc.
|
|
*/
|
|
dispc.fifo_assignment[fifo] = fifo;
|
|
}
|
|
|
|
/*
|
|
* The GFX fifo on OMAP4 is smaller than the other fifos. The small fifo
|
|
* causes problems with certain use cases, like using the tiler in 2D
|
|
* mode. The below hack swaps the fifos of GFX and WB planes, thus
|
|
* giving GFX plane a larger fifo. WB but should work fine with a
|
|
* smaller fifo.
|
|
*/
|
|
if (dispc.feat->gfx_fifo_workaround) {
|
|
u32 v;
|
|
|
|
v = dispc_read_reg(DISPC_GLOBAL_BUFFER);
|
|
|
|
v = FLD_MOD(v, 4, 2, 0); /* GFX BUF top to WB */
|
|
v = FLD_MOD(v, 4, 5, 3); /* GFX BUF bottom to WB */
|
|
v = FLD_MOD(v, 0, 26, 24); /* WB BUF top to GFX */
|
|
v = FLD_MOD(v, 0, 29, 27); /* WB BUF bottom to GFX */
|
|
|
|
dispc_write_reg(DISPC_GLOBAL_BUFFER, v);
|
|
|
|
dispc.fifo_assignment[OMAP_DSS_GFX] = OMAP_DSS_WB;
|
|
dispc.fifo_assignment[OMAP_DSS_WB] = OMAP_DSS_GFX;
|
|
}
|
|
|
|
/*
|
|
* Setup default fifo thresholds.
|
|
*/
|
|
for (i = 0; i < dss_feat_get_num_ovls(); ++i) {
|
|
u32 low, high;
|
|
const bool use_fifomerge = false;
|
|
const bool manual_update = false;
|
|
|
|
dispc_ovl_compute_fifo_thresholds(i, &low, &high,
|
|
use_fifomerge, manual_update);
|
|
|
|
dispc_ovl_set_fifo_threshold(i, low, high);
|
|
}
|
|
|
|
if (dispc.feat->has_writeback) {
|
|
u32 low, high;
|
|
const bool use_fifomerge = false;
|
|
const bool manual_update = false;
|
|
|
|
dispc_ovl_compute_fifo_thresholds(OMAP_DSS_WB, &low, &high,
|
|
use_fifomerge, manual_update);
|
|
|
|
dispc_ovl_set_fifo_threshold(OMAP_DSS_WB, low, high);
|
|
}
|
|
}
|
|
|
|
static u32 dispc_ovl_get_fifo_size(enum omap_plane plane)
|
|
{
|
|
int fifo;
|
|
u32 size = 0;
|
|
|
|
for (fifo = 0; fifo < dispc.feat->num_fifos; ++fifo) {
|
|
if (dispc.fifo_assignment[fifo] == plane)
|
|
size += dispc.fifo_size[fifo];
|
|
}
|
|
|
|
return size;
|
|
}
|
|
|
|
void dispc_ovl_set_fifo_threshold(enum omap_plane plane, u32 low, u32 high)
|
|
{
|
|
u8 hi_start, hi_end, lo_start, lo_end;
|
|
u32 unit;
|
|
|
|
unit = dss_feat_get_buffer_size_unit();
|
|
|
|
WARN_ON(low % unit != 0);
|
|
WARN_ON(high % unit != 0);
|
|
|
|
low /= unit;
|
|
high /= unit;
|
|
|
|
dss_feat_get_reg_field(FEAT_REG_FIFOHIGHTHRESHOLD, &hi_start, &hi_end);
|
|
dss_feat_get_reg_field(FEAT_REG_FIFOLOWTHRESHOLD, &lo_start, &lo_end);
|
|
|
|
DSSDBG("fifo(%d) threshold (bytes), old %u/%u, new %u/%u\n",
|
|
plane,
|
|
REG_GET(DISPC_OVL_FIFO_THRESHOLD(plane),
|
|
lo_start, lo_end) * unit,
|
|
REG_GET(DISPC_OVL_FIFO_THRESHOLD(plane),
|
|
hi_start, hi_end) * unit,
|
|
low * unit, high * unit);
|
|
|
|
dispc_write_reg(DISPC_OVL_FIFO_THRESHOLD(plane),
|
|
FLD_VAL(high, hi_start, hi_end) |
|
|
FLD_VAL(low, lo_start, lo_end));
|
|
|
|
/*
|
|
* configure the preload to the pipeline's high threhold, if HT it's too
|
|
* large for the preload field, set the threshold to the maximum value
|
|
* that can be held by the preload register
|
|
*/
|
|
if (dss_has_feature(FEAT_PRELOAD) && dispc.feat->set_max_preload &&
|
|
plane != OMAP_DSS_WB)
|
|
dispc_write_reg(DISPC_OVL_PRELOAD(plane), min(high, 0xfffu));
|
|
}
|
|
|
|
void dispc_enable_fifomerge(bool enable)
|
|
{
|
|
if (!dss_has_feature(FEAT_FIFO_MERGE)) {
|
|
WARN_ON(enable);
|
|
return;
|
|
}
|
|
|
|
DSSDBG("FIFO merge %s\n", enable ? "enabled" : "disabled");
|
|
REG_FLD_MOD(DISPC_CONFIG, enable ? 1 : 0, 14, 14);
|
|
}
|
|
|
|
void dispc_ovl_compute_fifo_thresholds(enum omap_plane plane,
|
|
u32 *fifo_low, u32 *fifo_high, bool use_fifomerge,
|
|
bool manual_update)
|
|
{
|
|
/*
|
|
* All sizes are in bytes. Both the buffer and burst are made of
|
|
* buffer_units, and the fifo thresholds must be buffer_unit aligned.
|
|
*/
|
|
|
|
unsigned buf_unit = dss_feat_get_buffer_size_unit();
|
|
unsigned ovl_fifo_size, total_fifo_size, burst_size;
|
|
int i;
|
|
|
|
burst_size = dispc_ovl_get_burst_size(plane);
|
|
ovl_fifo_size = dispc_ovl_get_fifo_size(plane);
|
|
|
|
if (use_fifomerge) {
|
|
total_fifo_size = 0;
|
|
for (i = 0; i < dss_feat_get_num_ovls(); ++i)
|
|
total_fifo_size += dispc_ovl_get_fifo_size(i);
|
|
} else {
|
|
total_fifo_size = ovl_fifo_size;
|
|
}
|
|
|
|
/*
|
|
* We use the same low threshold for both fifomerge and non-fifomerge
|
|
* cases, but for fifomerge we calculate the high threshold using the
|
|
* combined fifo size
|
|
*/
|
|
|
|
if (manual_update && dss_has_feature(FEAT_OMAP3_DSI_FIFO_BUG)) {
|
|
*fifo_low = ovl_fifo_size - burst_size * 2;
|
|
*fifo_high = total_fifo_size - burst_size;
|
|
} else if (plane == OMAP_DSS_WB) {
|
|
/*
|
|
* Most optimal configuration for writeback is to push out data
|
|
* to the interconnect the moment writeback pushes enough pixels
|
|
* in the FIFO to form a burst
|
|
*/
|
|
*fifo_low = 0;
|
|
*fifo_high = burst_size;
|
|
} else {
|
|
*fifo_low = ovl_fifo_size - burst_size;
|
|
*fifo_high = total_fifo_size - buf_unit;
|
|
}
|
|
}
|
|
|
|
static void dispc_ovl_set_mflag(enum omap_plane plane, bool enable)
|
|
{
|
|
int bit;
|
|
|
|
if (plane == OMAP_DSS_GFX)
|
|
bit = 14;
|
|
else
|
|
bit = 23;
|
|
|
|
REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(plane), enable, bit, bit);
|
|
}
|
|
|
|
static void dispc_ovl_set_mflag_threshold(enum omap_plane plane,
|
|
int low, int high)
|
|
{
|
|
dispc_write_reg(DISPC_OVL_MFLAG_THRESHOLD(plane),
|
|
FLD_VAL(high, 31, 16) | FLD_VAL(low, 15, 0));
|
|
}
|
|
|
|
static void dispc_init_mflag(void)
|
|
{
|
|
int i;
|
|
|
|
/*
|
|
* HACK: NV12 color format and MFLAG seem to have problems working
|
|
* together: using two displays, and having an NV12 overlay on one of
|
|
* the displays will cause underflows/synclosts when MFLAG_CTRL=2.
|
|
* Changing MFLAG thresholds and PRELOAD to certain values seem to
|
|
* remove the errors, but there doesn't seem to be a clear logic on
|
|
* which values work and which not.
|
|
*
|
|
* As a work-around, set force MFLAG to always on.
|
|
*/
|
|
dispc_write_reg(DISPC_GLOBAL_MFLAG_ATTRIBUTE,
|
|
(1 << 0) | /* MFLAG_CTRL = force always on */
|
|
(0 << 2)); /* MFLAG_START = disable */
|
|
|
|
for (i = 0; i < dss_feat_get_num_ovls(); ++i) {
|
|
u32 size = dispc_ovl_get_fifo_size(i);
|
|
u32 unit = dss_feat_get_buffer_size_unit();
|
|
u32 low, high;
|
|
|
|
dispc_ovl_set_mflag(i, true);
|
|
|
|
/*
|
|
* Simulation team suggests below thesholds:
|
|
* HT = fifosize * 5 / 8;
|
|
* LT = fifosize * 4 / 8;
|
|
*/
|
|
|
|
low = size * 4 / 8 / unit;
|
|
high = size * 5 / 8 / unit;
|
|
|
|
dispc_ovl_set_mflag_threshold(i, low, high);
|
|
}
|
|
|
|
if (dispc.feat->has_writeback) {
|
|
u32 size = dispc_ovl_get_fifo_size(OMAP_DSS_WB);
|
|
u32 unit = dss_feat_get_buffer_size_unit();
|
|
u32 low, high;
|
|
|
|
dispc_ovl_set_mflag(OMAP_DSS_WB, true);
|
|
|
|
/*
|
|
* Simulation team suggests below thesholds:
|
|
* HT = fifosize * 5 / 8;
|
|
* LT = fifosize * 4 / 8;
|
|
*/
|
|
|
|
low = size * 4 / 8 / unit;
|
|
high = size * 5 / 8 / unit;
|
|
|
|
dispc_ovl_set_mflag_threshold(OMAP_DSS_WB, low, high);
|
|
}
|
|
}
|
|
|
|
static void dispc_ovl_set_fir(enum omap_plane plane,
|
|
int hinc, int vinc,
|
|
enum omap_color_component color_comp)
|
|
{
|
|
u32 val;
|
|
|
|
if (color_comp == DISPC_COLOR_COMPONENT_RGB_Y) {
|
|
u8 hinc_start, hinc_end, vinc_start, vinc_end;
|
|
|
|
dss_feat_get_reg_field(FEAT_REG_FIRHINC,
|
|
&hinc_start, &hinc_end);
|
|
dss_feat_get_reg_field(FEAT_REG_FIRVINC,
|
|
&vinc_start, &vinc_end);
|
|
val = FLD_VAL(vinc, vinc_start, vinc_end) |
|
|
FLD_VAL(hinc, hinc_start, hinc_end);
|
|
|
|
dispc_write_reg(DISPC_OVL_FIR(plane), val);
|
|
} else {
|
|
val = FLD_VAL(vinc, 28, 16) | FLD_VAL(hinc, 12, 0);
|
|
dispc_write_reg(DISPC_OVL_FIR2(plane), val);
|
|
}
|
|
}
|
|
|
|
static void dispc_ovl_set_vid_accu0(enum omap_plane plane, int haccu, int vaccu)
|
|
{
|
|
u32 val;
|
|
u8 hor_start, hor_end, vert_start, vert_end;
|
|
|
|
dss_feat_get_reg_field(FEAT_REG_HORIZONTALACCU, &hor_start, &hor_end);
|
|
dss_feat_get_reg_field(FEAT_REG_VERTICALACCU, &vert_start, &vert_end);
|
|
|
|
val = FLD_VAL(vaccu, vert_start, vert_end) |
|
|
FLD_VAL(haccu, hor_start, hor_end);
|
|
|
|
dispc_write_reg(DISPC_OVL_ACCU0(plane), val);
|
|
}
|
|
|
|
static void dispc_ovl_set_vid_accu1(enum omap_plane plane, int haccu, int vaccu)
|
|
{
|
|
u32 val;
|
|
u8 hor_start, hor_end, vert_start, vert_end;
|
|
|
|
dss_feat_get_reg_field(FEAT_REG_HORIZONTALACCU, &hor_start, &hor_end);
|
|
dss_feat_get_reg_field(FEAT_REG_VERTICALACCU, &vert_start, &vert_end);
|
|
|
|
val = FLD_VAL(vaccu, vert_start, vert_end) |
|
|
FLD_VAL(haccu, hor_start, hor_end);
|
|
|
|
dispc_write_reg(DISPC_OVL_ACCU1(plane), val);
|
|
}
|
|
|
|
static void dispc_ovl_set_vid_accu2_0(enum omap_plane plane, int haccu,
|
|
int vaccu)
|
|
{
|
|
u32 val;
|
|
|
|
val = FLD_VAL(vaccu, 26, 16) | FLD_VAL(haccu, 10, 0);
|
|
dispc_write_reg(DISPC_OVL_ACCU2_0(plane), val);
|
|
}
|
|
|
|
static void dispc_ovl_set_vid_accu2_1(enum omap_plane plane, int haccu,
|
|
int vaccu)
|
|
{
|
|
u32 val;
|
|
|
|
val = FLD_VAL(vaccu, 26, 16) | FLD_VAL(haccu, 10, 0);
|
|
dispc_write_reg(DISPC_OVL_ACCU2_1(plane), val);
|
|
}
|
|
|
|
static void dispc_ovl_set_scale_param(enum omap_plane plane,
|
|
u16 orig_width, u16 orig_height,
|
|
u16 out_width, u16 out_height,
|
|
bool five_taps, u8 rotation,
|
|
enum omap_color_component color_comp)
|
|
{
|
|
int fir_hinc, fir_vinc;
|
|
|
|
fir_hinc = 1024 * orig_width / out_width;
|
|
fir_vinc = 1024 * orig_height / out_height;
|
|
|
|
dispc_ovl_set_scale_coef(plane, fir_hinc, fir_vinc, five_taps,
|
|
color_comp);
|
|
dispc_ovl_set_fir(plane, fir_hinc, fir_vinc, color_comp);
|
|
}
|
|
|
|
static void dispc_ovl_set_accu_uv(enum omap_plane plane,
|
|
u16 orig_width, u16 orig_height, u16 out_width, u16 out_height,
|
|
bool ilace, enum omap_color_mode color_mode, u8 rotation)
|
|
{
|
|
int h_accu2_0, h_accu2_1;
|
|
int v_accu2_0, v_accu2_1;
|
|
int chroma_hinc, chroma_vinc;
|
|
int idx;
|
|
|
|
struct accu {
|
|
s8 h0_m, h0_n;
|
|
s8 h1_m, h1_n;
|
|
s8 v0_m, v0_n;
|
|
s8 v1_m, v1_n;
|
|
};
|
|
|
|
const struct accu *accu_table;
|
|
const struct accu *accu_val;
|
|
|
|
static const struct accu accu_nv12[4] = {
|
|
{ 0, 1, 0, 1 , -1, 2, 0, 1 },
|
|
{ 1, 2, -3, 4 , 0, 1, 0, 1 },
|
|
{ -1, 1, 0, 1 , -1, 2, 0, 1 },
|
|
{ -1, 2, -1, 2 , -1, 1, 0, 1 },
|
|
};
|
|
|
|
static const struct accu accu_nv12_ilace[4] = {
|
|
{ 0, 1, 0, 1 , -3, 4, -1, 4 },
|
|
{ -1, 4, -3, 4 , 0, 1, 0, 1 },
|
|
{ -1, 1, 0, 1 , -1, 4, -3, 4 },
|
|
{ -3, 4, -3, 4 , -1, 1, 0, 1 },
|
|
};
|
|
|
|
static const struct accu accu_yuv[4] = {
|
|
{ 0, 1, 0, 1, 0, 1, 0, 1 },
|
|
{ 0, 1, 0, 1, 0, 1, 0, 1 },
|
|
{ -1, 1, 0, 1, 0, 1, 0, 1 },
|
|
{ 0, 1, 0, 1, -1, 1, 0, 1 },
|
|
};
|
|
|
|
switch (rotation) {
|
|
case OMAP_DSS_ROT_0:
|
|
idx = 0;
|
|
break;
|
|
case OMAP_DSS_ROT_90:
|
|
idx = 1;
|
|
break;
|
|
case OMAP_DSS_ROT_180:
|
|
idx = 2;
|
|
break;
|
|
case OMAP_DSS_ROT_270:
|
|
idx = 3;
|
|
break;
|
|
default:
|
|
BUG();
|
|
return;
|
|
}
|
|
|
|
switch (color_mode) {
|
|
case OMAP_DSS_COLOR_NV12:
|
|
if (ilace)
|
|
accu_table = accu_nv12_ilace;
|
|
else
|
|
accu_table = accu_nv12;
|
|
break;
|
|
case OMAP_DSS_COLOR_YUV2:
|
|
case OMAP_DSS_COLOR_UYVY:
|
|
accu_table = accu_yuv;
|
|
break;
|
|
default:
|
|
BUG();
|
|
return;
|
|
}
|
|
|
|
accu_val = &accu_table[idx];
|
|
|
|
chroma_hinc = 1024 * orig_width / out_width;
|
|
chroma_vinc = 1024 * orig_height / out_height;
|
|
|
|
h_accu2_0 = (accu_val->h0_m * chroma_hinc / accu_val->h0_n) % 1024;
|
|
h_accu2_1 = (accu_val->h1_m * chroma_hinc / accu_val->h1_n) % 1024;
|
|
v_accu2_0 = (accu_val->v0_m * chroma_vinc / accu_val->v0_n) % 1024;
|
|
v_accu2_1 = (accu_val->v1_m * chroma_vinc / accu_val->v1_n) % 1024;
|
|
|
|
dispc_ovl_set_vid_accu2_0(plane, h_accu2_0, v_accu2_0);
|
|
dispc_ovl_set_vid_accu2_1(plane, h_accu2_1, v_accu2_1);
|
|
}
|
|
|
|
static void dispc_ovl_set_scaling_common(enum omap_plane plane,
|
|
u16 orig_width, u16 orig_height,
|
|
u16 out_width, u16 out_height,
|
|
bool ilace, bool five_taps,
|
|
bool fieldmode, enum omap_color_mode color_mode,
|
|
u8 rotation)
|
|
{
|
|
int accu0 = 0;
|
|
int accu1 = 0;
|
|
u32 l;
|
|
|
|
dispc_ovl_set_scale_param(plane, orig_width, orig_height,
|
|
out_width, out_height, five_taps,
|
|
rotation, DISPC_COLOR_COMPONENT_RGB_Y);
|
|
l = dispc_read_reg(DISPC_OVL_ATTRIBUTES(plane));
|
|
|
|
/* RESIZEENABLE and VERTICALTAPS */
|
|
l &= ~((0x3 << 5) | (0x1 << 21));
|
|
l |= (orig_width != out_width) ? (1 << 5) : 0;
|
|
l |= (orig_height != out_height) ? (1 << 6) : 0;
|
|
l |= five_taps ? (1 << 21) : 0;
|
|
|
|
/* VRESIZECONF and HRESIZECONF */
|
|
if (dss_has_feature(FEAT_RESIZECONF)) {
|
|
l &= ~(0x3 << 7);
|
|
l |= (orig_width <= out_width) ? 0 : (1 << 7);
|
|
l |= (orig_height <= out_height) ? 0 : (1 << 8);
|
|
}
|
|
|
|
/* LINEBUFFERSPLIT */
|
|
if (dss_has_feature(FEAT_LINEBUFFERSPLIT)) {
|
|
l &= ~(0x1 << 22);
|
|
l |= five_taps ? (1 << 22) : 0;
|
|
}
|
|
|
|
dispc_write_reg(DISPC_OVL_ATTRIBUTES(plane), l);
|
|
|
|
/*
|
|
* field 0 = even field = bottom field
|
|
* field 1 = odd field = top field
|
|
*/
|
|
if (ilace && !fieldmode) {
|
|
accu1 = 0;
|
|
accu0 = ((1024 * orig_height / out_height) / 2) & 0x3ff;
|
|
if (accu0 >= 1024/2) {
|
|
accu1 = 1024/2;
|
|
accu0 -= accu1;
|
|
}
|
|
}
|
|
|
|
dispc_ovl_set_vid_accu0(plane, 0, accu0);
|
|
dispc_ovl_set_vid_accu1(plane, 0, accu1);
|
|
}
|
|
|
|
static void dispc_ovl_set_scaling_uv(enum omap_plane plane,
|
|
u16 orig_width, u16 orig_height,
|
|
u16 out_width, u16 out_height,
|
|
bool ilace, bool five_taps,
|
|
bool fieldmode, enum omap_color_mode color_mode,
|
|
u8 rotation)
|
|
{
|
|
int scale_x = out_width != orig_width;
|
|
int scale_y = out_height != orig_height;
|
|
bool chroma_upscale = plane != OMAP_DSS_WB ? true : false;
|
|
|
|
if (!dss_has_feature(FEAT_HANDLE_UV_SEPARATE))
|
|
return;
|
|
if ((color_mode != OMAP_DSS_COLOR_YUV2 &&
|
|
color_mode != OMAP_DSS_COLOR_UYVY &&
|
|
color_mode != OMAP_DSS_COLOR_NV12)) {
|
|
/* reset chroma resampling for RGB formats */
|
|
if (plane != OMAP_DSS_WB)
|
|
REG_FLD_MOD(DISPC_OVL_ATTRIBUTES2(plane), 0, 8, 8);
|
|
return;
|
|
}
|
|
|
|
dispc_ovl_set_accu_uv(plane, orig_width, orig_height, out_width,
|
|
out_height, ilace, color_mode, rotation);
|
|
|
|
switch (color_mode) {
|
|
case OMAP_DSS_COLOR_NV12:
|
|
if (chroma_upscale) {
|
|
/* UV is subsampled by 2 horizontally and vertically */
|
|
orig_height >>= 1;
|
|
orig_width >>= 1;
|
|
} else {
|
|
/* UV is downsampled by 2 horizontally and vertically */
|
|
orig_height <<= 1;
|
|
orig_width <<= 1;
|
|
}
|
|
|
|
break;
|
|
case OMAP_DSS_COLOR_YUV2:
|
|
case OMAP_DSS_COLOR_UYVY:
|
|
/* For YUV422 with 90/270 rotation, we don't upsample chroma */
|
|
if (rotation == OMAP_DSS_ROT_0 ||
|
|
rotation == OMAP_DSS_ROT_180) {
|
|
if (chroma_upscale)
|
|
/* UV is subsampled by 2 horizontally */
|
|
orig_width >>= 1;
|
|
else
|
|
/* UV is downsampled by 2 horizontally */
|
|
orig_width <<= 1;
|
|
}
|
|
|
|
/* must use FIR for YUV422 if rotated */
|
|
if (rotation != OMAP_DSS_ROT_0)
|
|
scale_x = scale_y = true;
|
|
|
|
break;
|
|
default:
|
|
BUG();
|
|
return;
|
|
}
|
|
|
|
if (out_width != orig_width)
|
|
scale_x = true;
|
|
if (out_height != orig_height)
|
|
scale_y = true;
|
|
|
|
dispc_ovl_set_scale_param(plane, orig_width, orig_height,
|
|
out_width, out_height, five_taps,
|
|
rotation, DISPC_COLOR_COMPONENT_UV);
|
|
|
|
if (plane != OMAP_DSS_WB)
|
|
REG_FLD_MOD(DISPC_OVL_ATTRIBUTES2(plane),
|
|
(scale_x || scale_y) ? 1 : 0, 8, 8);
|
|
|
|
/* set H scaling */
|
|
REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(plane), scale_x ? 1 : 0, 5, 5);
|
|
/* set V scaling */
|
|
REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(plane), scale_y ? 1 : 0, 6, 6);
|
|
}
|
|
|
|
static void dispc_ovl_set_scaling(enum omap_plane plane,
|
|
u16 orig_width, u16 orig_height,
|
|
u16 out_width, u16 out_height,
|
|
bool ilace, bool five_taps,
|
|
bool fieldmode, enum omap_color_mode color_mode,
|
|
u8 rotation)
|
|
{
|
|
BUG_ON(plane == OMAP_DSS_GFX);
|
|
|
|
dispc_ovl_set_scaling_common(plane,
|
|
orig_width, orig_height,
|
|
out_width, out_height,
|
|
ilace, five_taps,
|
|
fieldmode, color_mode,
|
|
rotation);
|
|
|
|
dispc_ovl_set_scaling_uv(plane,
|
|
orig_width, orig_height,
|
|
out_width, out_height,
|
|
ilace, five_taps,
|
|
fieldmode, color_mode,
|
|
rotation);
|
|
}
|
|
|
|
static void dispc_ovl_set_rotation_attrs(enum omap_plane plane, u8 rotation,
|
|
enum omap_dss_rotation_type rotation_type,
|
|
bool mirroring, enum omap_color_mode color_mode)
|
|
{
|
|
bool row_repeat = false;
|
|
int vidrot = 0;
|
|
|
|
if (color_mode == OMAP_DSS_COLOR_YUV2 ||
|
|
color_mode == OMAP_DSS_COLOR_UYVY) {
|
|
|
|
if (mirroring) {
|
|
switch (rotation) {
|
|
case OMAP_DSS_ROT_0:
|
|
vidrot = 2;
|
|
break;
|
|
case OMAP_DSS_ROT_90:
|
|
vidrot = 1;
|
|
break;
|
|
case OMAP_DSS_ROT_180:
|
|
vidrot = 0;
|
|
break;
|
|
case OMAP_DSS_ROT_270:
|
|
vidrot = 3;
|
|
break;
|
|
}
|
|
} else {
|
|
switch (rotation) {
|
|
case OMAP_DSS_ROT_0:
|
|
vidrot = 0;
|
|
break;
|
|
case OMAP_DSS_ROT_90:
|
|
vidrot = 1;
|
|
break;
|
|
case OMAP_DSS_ROT_180:
|
|
vidrot = 2;
|
|
break;
|
|
case OMAP_DSS_ROT_270:
|
|
vidrot = 3;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (rotation == OMAP_DSS_ROT_90 || rotation == OMAP_DSS_ROT_270)
|
|
row_repeat = true;
|
|
else
|
|
row_repeat = false;
|
|
}
|
|
|
|
/*
|
|
* OMAP4/5 Errata i631:
|
|
* NV12 in 1D mode must use ROTATION=1. Otherwise DSS will fetch extra
|
|
* rows beyond the framebuffer, which may cause OCP error.
|
|
*/
|
|
if (color_mode == OMAP_DSS_COLOR_NV12 &&
|
|
rotation_type != OMAP_DSS_ROT_TILER)
|
|
vidrot = 1;
|
|
|
|
REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(plane), vidrot, 13, 12);
|
|
if (dss_has_feature(FEAT_ROWREPEATENABLE))
|
|
REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(plane),
|
|
row_repeat ? 1 : 0, 18, 18);
|
|
|
|
if (color_mode == OMAP_DSS_COLOR_NV12) {
|
|
bool doublestride = (rotation_type == OMAP_DSS_ROT_TILER) &&
|
|
(rotation == OMAP_DSS_ROT_0 ||
|
|
rotation == OMAP_DSS_ROT_180);
|
|
/* DOUBLESTRIDE */
|
|
REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(plane), doublestride, 22, 22);
|
|
}
|
|
|
|
}
|
|
|
|
static int color_mode_to_bpp(enum omap_color_mode color_mode)
|
|
{
|
|
switch (color_mode) {
|
|
case OMAP_DSS_COLOR_CLUT1:
|
|
return 1;
|
|
case OMAP_DSS_COLOR_CLUT2:
|
|
return 2;
|
|
case OMAP_DSS_COLOR_CLUT4:
|
|
return 4;
|
|
case OMAP_DSS_COLOR_CLUT8:
|
|
case OMAP_DSS_COLOR_NV12:
|
|
return 8;
|
|
case OMAP_DSS_COLOR_RGB12U:
|
|
case OMAP_DSS_COLOR_RGB16:
|
|
case OMAP_DSS_COLOR_ARGB16:
|
|
case OMAP_DSS_COLOR_YUV2:
|
|
case OMAP_DSS_COLOR_UYVY:
|
|
case OMAP_DSS_COLOR_RGBA16:
|
|
case OMAP_DSS_COLOR_RGBX16:
|
|
case OMAP_DSS_COLOR_ARGB16_1555:
|
|
case OMAP_DSS_COLOR_XRGB16_1555:
|
|
return 16;
|
|
case OMAP_DSS_COLOR_RGB24P:
|
|
return 24;
|
|
case OMAP_DSS_COLOR_RGB24U:
|
|
case OMAP_DSS_COLOR_ARGB32:
|
|
case OMAP_DSS_COLOR_RGBA32:
|
|
case OMAP_DSS_COLOR_RGBX32:
|
|
return 32;
|
|
default:
|
|
BUG();
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static s32 pixinc(int pixels, u8 ps)
|
|
{
|
|
if (pixels == 1)
|
|
return 1;
|
|
else if (pixels > 1)
|
|
return 1 + (pixels - 1) * ps;
|
|
else if (pixels < 0)
|
|
return 1 - (-pixels + 1) * ps;
|
|
else
|
|
BUG();
|
|
return 0;
|
|
}
|
|
|
|
static void calc_vrfb_rotation_offset(u8 rotation, bool mirror,
|
|
u16 screen_width,
|
|
u16 width, u16 height,
|
|
enum omap_color_mode color_mode, bool fieldmode,
|
|
unsigned int field_offset,
|
|
unsigned *offset0, unsigned *offset1,
|
|
s32 *row_inc, s32 *pix_inc, int x_predecim, int y_predecim)
|
|
{
|
|
u8 ps;
|
|
|
|
/* FIXME CLUT formats */
|
|
switch (color_mode) {
|
|
case OMAP_DSS_COLOR_CLUT1:
|
|
case OMAP_DSS_COLOR_CLUT2:
|
|
case OMAP_DSS_COLOR_CLUT4:
|
|
case OMAP_DSS_COLOR_CLUT8:
|
|
BUG();
|
|
return;
|
|
case OMAP_DSS_COLOR_YUV2:
|
|
case OMAP_DSS_COLOR_UYVY:
|
|
ps = 4;
|
|
break;
|
|
default:
|
|
ps = color_mode_to_bpp(color_mode) / 8;
|
|
break;
|
|
}
|
|
|
|
DSSDBG("calc_rot(%d): scrw %d, %dx%d\n", rotation, screen_width,
|
|
width, height);
|
|
|
|
/*
|
|
* field 0 = even field = bottom field
|
|
* field 1 = odd field = top field
|
|
*/
|
|
switch (rotation + mirror * 4) {
|
|
case OMAP_DSS_ROT_0:
|
|
case OMAP_DSS_ROT_180:
|
|
/*
|
|
* If the pixel format is YUV or UYVY divide the width
|
|
* of the image by 2 for 0 and 180 degree rotation.
|
|
*/
|
|
if (color_mode == OMAP_DSS_COLOR_YUV2 ||
|
|
color_mode == OMAP_DSS_COLOR_UYVY)
|
|
width = width >> 1;
|
|
/* fall through */
|
|
case OMAP_DSS_ROT_90:
|
|
case OMAP_DSS_ROT_270:
|
|
*offset1 = 0;
|
|
if (field_offset)
|
|
*offset0 = field_offset * screen_width * ps;
|
|
else
|
|
*offset0 = 0;
|
|
|
|
*row_inc = pixinc(1 +
|
|
(y_predecim * screen_width - x_predecim * width) +
|
|
(fieldmode ? screen_width : 0), ps);
|
|
*pix_inc = pixinc(x_predecim, ps);
|
|
break;
|
|
|
|
case OMAP_DSS_ROT_0 + 4:
|
|
case OMAP_DSS_ROT_180 + 4:
|
|
/* If the pixel format is YUV or UYVY divide the width
|
|
* of the image by 2 for 0 degree and 180 degree
|
|
*/
|
|
if (color_mode == OMAP_DSS_COLOR_YUV2 ||
|
|
color_mode == OMAP_DSS_COLOR_UYVY)
|
|
width = width >> 1;
|
|
/* fall through */
|
|
case OMAP_DSS_ROT_90 + 4:
|
|
case OMAP_DSS_ROT_270 + 4:
|
|
*offset1 = 0;
|
|
if (field_offset)
|
|
*offset0 = field_offset * screen_width * ps;
|
|
else
|
|
*offset0 = 0;
|
|
*row_inc = pixinc(1 -
|
|
(y_predecim * screen_width + x_predecim * width) -
|
|
(fieldmode ? screen_width : 0), ps);
|
|
*pix_inc = pixinc(x_predecim, ps);
|
|
break;
|
|
|
|
default:
|
|
BUG();
|
|
return;
|
|
}
|
|
}
|
|
|
|
static void calc_dma_rotation_offset(u8 rotation, bool mirror,
|
|
u16 screen_width,
|
|
u16 width, u16 height,
|
|
enum omap_color_mode color_mode, bool fieldmode,
|
|
unsigned int field_offset,
|
|
unsigned *offset0, unsigned *offset1,
|
|
s32 *row_inc, s32 *pix_inc, int x_predecim, int y_predecim)
|
|
{
|
|
u8 ps;
|
|
u16 fbw, fbh;
|
|
|
|
/* FIXME CLUT formats */
|
|
switch (color_mode) {
|
|
case OMAP_DSS_COLOR_CLUT1:
|
|
case OMAP_DSS_COLOR_CLUT2:
|
|
case OMAP_DSS_COLOR_CLUT4:
|
|
case OMAP_DSS_COLOR_CLUT8:
|
|
BUG();
|
|
return;
|
|
default:
|
|
ps = color_mode_to_bpp(color_mode) / 8;
|
|
break;
|
|
}
|
|
|
|
DSSDBG("calc_rot(%d): scrw %d, %dx%d\n", rotation, screen_width,
|
|
width, height);
|
|
|
|
/* width & height are overlay sizes, convert to fb sizes */
|
|
|
|
if (rotation == OMAP_DSS_ROT_0 || rotation == OMAP_DSS_ROT_180) {
|
|
fbw = width;
|
|
fbh = height;
|
|
} else {
|
|
fbw = height;
|
|
fbh = width;
|
|
}
|
|
|
|
/*
|
|
* field 0 = even field = bottom field
|
|
* field 1 = odd field = top field
|
|
*/
|
|
switch (rotation + mirror * 4) {
|
|
case OMAP_DSS_ROT_0:
|
|
*offset1 = 0;
|
|
if (field_offset)
|
|
*offset0 = *offset1 + field_offset * screen_width * ps;
|
|
else
|
|
*offset0 = *offset1;
|
|
*row_inc = pixinc(1 +
|
|
(y_predecim * screen_width - fbw * x_predecim) +
|
|
(fieldmode ? screen_width : 0), ps);
|
|
if (color_mode == OMAP_DSS_COLOR_YUV2 ||
|
|
color_mode == OMAP_DSS_COLOR_UYVY)
|
|
*pix_inc = pixinc(x_predecim, 2 * ps);
|
|
else
|
|
*pix_inc = pixinc(x_predecim, ps);
|
|
break;
|
|
case OMAP_DSS_ROT_90:
|
|
*offset1 = screen_width * (fbh - 1) * ps;
|
|
if (field_offset)
|
|
*offset0 = *offset1 + field_offset * ps;
|
|
else
|
|
*offset0 = *offset1;
|
|
*row_inc = pixinc(screen_width * (fbh * x_predecim - 1) +
|
|
y_predecim + (fieldmode ? 1 : 0), ps);
|
|
*pix_inc = pixinc(-x_predecim * screen_width, ps);
|
|
break;
|
|
case OMAP_DSS_ROT_180:
|
|
*offset1 = (screen_width * (fbh - 1) + fbw - 1) * ps;
|
|
if (field_offset)
|
|
*offset0 = *offset1 - field_offset * screen_width * ps;
|
|
else
|
|
*offset0 = *offset1;
|
|
*row_inc = pixinc(-1 -
|
|
(y_predecim * screen_width - fbw * x_predecim) -
|
|
(fieldmode ? screen_width : 0), ps);
|
|
if (color_mode == OMAP_DSS_COLOR_YUV2 ||
|
|
color_mode == OMAP_DSS_COLOR_UYVY)
|
|
*pix_inc = pixinc(-x_predecim, 2 * ps);
|
|
else
|
|
*pix_inc = pixinc(-x_predecim, ps);
|
|
break;
|
|
case OMAP_DSS_ROT_270:
|
|
*offset1 = (fbw - 1) * ps;
|
|
if (field_offset)
|
|
*offset0 = *offset1 - field_offset * ps;
|
|
else
|
|
*offset0 = *offset1;
|
|
*row_inc = pixinc(-screen_width * (fbh * x_predecim - 1) -
|
|
y_predecim - (fieldmode ? 1 : 0), ps);
|
|
*pix_inc = pixinc(x_predecim * screen_width, ps);
|
|
break;
|
|
|
|
/* mirroring */
|
|
case OMAP_DSS_ROT_0 + 4:
|
|
*offset1 = (fbw - 1) * ps;
|
|
if (field_offset)
|
|
*offset0 = *offset1 + field_offset * screen_width * ps;
|
|
else
|
|
*offset0 = *offset1;
|
|
*row_inc = pixinc(y_predecim * screen_width * 2 - 1 +
|
|
(fieldmode ? screen_width : 0),
|
|
ps);
|
|
if (color_mode == OMAP_DSS_COLOR_YUV2 ||
|
|
color_mode == OMAP_DSS_COLOR_UYVY)
|
|
*pix_inc = pixinc(-x_predecim, 2 * ps);
|
|
else
|
|
*pix_inc = pixinc(-x_predecim, ps);
|
|
break;
|
|
|
|
case OMAP_DSS_ROT_90 + 4:
|
|
*offset1 = 0;
|
|
if (field_offset)
|
|
*offset0 = *offset1 + field_offset * ps;
|
|
else
|
|
*offset0 = *offset1;
|
|
*row_inc = pixinc(-screen_width * (fbh * x_predecim - 1) +
|
|
y_predecim + (fieldmode ? 1 : 0),
|
|
ps);
|
|
*pix_inc = pixinc(x_predecim * screen_width, ps);
|
|
break;
|
|
|
|
case OMAP_DSS_ROT_180 + 4:
|
|
*offset1 = screen_width * (fbh - 1) * ps;
|
|
if (field_offset)
|
|
*offset0 = *offset1 - field_offset * screen_width * ps;
|
|
else
|
|
*offset0 = *offset1;
|
|
*row_inc = pixinc(1 - y_predecim * screen_width * 2 -
|
|
(fieldmode ? screen_width : 0),
|
|
ps);
|
|
if (color_mode == OMAP_DSS_COLOR_YUV2 ||
|
|
color_mode == OMAP_DSS_COLOR_UYVY)
|
|
*pix_inc = pixinc(x_predecim, 2 * ps);
|
|
else
|
|
*pix_inc = pixinc(x_predecim, ps);
|
|
break;
|
|
|
|
case OMAP_DSS_ROT_270 + 4:
|
|
*offset1 = (screen_width * (fbh - 1) + fbw - 1) * ps;
|
|
if (field_offset)
|
|
*offset0 = *offset1 - field_offset * ps;
|
|
else
|
|
*offset0 = *offset1;
|
|
*row_inc = pixinc(screen_width * (fbh * x_predecim - 1) -
|
|
y_predecim - (fieldmode ? 1 : 0),
|
|
ps);
|
|
*pix_inc = pixinc(-x_predecim * screen_width, ps);
|
|
break;
|
|
|
|
default:
|
|
BUG();
|
|
return;
|
|
}
|
|
}
|
|
|
|
static void calc_tiler_rotation_offset(u16 screen_width, u16 width,
|
|
enum omap_color_mode color_mode, bool fieldmode,
|
|
unsigned int field_offset, unsigned *offset0, unsigned *offset1,
|
|
s32 *row_inc, s32 *pix_inc, int x_predecim, int y_predecim)
|
|
{
|
|
u8 ps;
|
|
|
|
switch (color_mode) {
|
|
case OMAP_DSS_COLOR_CLUT1:
|
|
case OMAP_DSS_COLOR_CLUT2:
|
|
case OMAP_DSS_COLOR_CLUT4:
|
|
case OMAP_DSS_COLOR_CLUT8:
|
|
BUG();
|
|
return;
|
|
default:
|
|
ps = color_mode_to_bpp(color_mode) / 8;
|
|
break;
|
|
}
|
|
|
|
DSSDBG("scrw %d, width %d\n", screen_width, width);
|
|
|
|
/*
|
|
* field 0 = even field = bottom field
|
|
* field 1 = odd field = top field
|
|
*/
|
|
*offset1 = 0;
|
|
if (field_offset)
|
|
*offset0 = *offset1 + field_offset * screen_width * ps;
|
|
else
|
|
*offset0 = *offset1;
|
|
*row_inc = pixinc(1 + (y_predecim * screen_width - width * x_predecim) +
|
|
(fieldmode ? screen_width : 0), ps);
|
|
if (color_mode == OMAP_DSS_COLOR_YUV2 ||
|
|
color_mode == OMAP_DSS_COLOR_UYVY)
|
|
*pix_inc = pixinc(x_predecim, 2 * ps);
|
|
else
|
|
*pix_inc = pixinc(x_predecim, ps);
|
|
}
|
|
|
|
/*
|
|
* This function is used to avoid synclosts in OMAP3, because of some
|
|
* undocumented horizontal position and timing related limitations.
|
|
*/
|
|
static int check_horiz_timing_omap3(unsigned long pclk, unsigned long lclk,
|
|
const struct omap_video_timings *t, u16 pos_x,
|
|
u16 width, u16 height, u16 out_width, u16 out_height,
|
|
bool five_taps)
|
|
{
|
|
const int ds = DIV_ROUND_UP(height, out_height);
|
|
unsigned long nonactive;
|
|
static const u8 limits[3] = { 8, 10, 20 };
|
|
u64 val, blank;
|
|
int i;
|
|
|
|
nonactive = t->x_res + t->hfp + t->hsw + t->hbp - out_width;
|
|
|
|
i = 0;
|
|
if (out_height < height)
|
|
i++;
|
|
if (out_width < width)
|
|
i++;
|
|
blank = div_u64((u64)(t->hbp + t->hsw + t->hfp) * lclk, pclk);
|
|
DSSDBG("blanking period + ppl = %llu (limit = %u)\n", blank, limits[i]);
|
|
if (blank <= limits[i])
|
|
return -EINVAL;
|
|
|
|
/* FIXME add checks for 3-tap filter once the limitations are known */
|
|
if (!five_taps)
|
|
return 0;
|
|
|
|
/*
|
|
* Pixel data should be prepared before visible display point starts.
|
|
* So, atleast DS-2 lines must have already been fetched by DISPC
|
|
* during nonactive - pos_x period.
|
|
*/
|
|
val = div_u64((u64)(nonactive - pos_x) * lclk, pclk);
|
|
DSSDBG("(nonactive - pos_x) * pcd = %llu max(0, DS - 2) * width = %d\n",
|
|
val, max(0, ds - 2) * width);
|
|
if (val < max(0, ds - 2) * width)
|
|
return -EINVAL;
|
|
|
|
/*
|
|
* All lines need to be refilled during the nonactive period of which
|
|
* only one line can be loaded during the active period. So, atleast
|
|
* DS - 1 lines should be loaded during nonactive period.
|
|
*/
|
|
val = div_u64((u64)nonactive * lclk, pclk);
|
|
DSSDBG("nonactive * pcd = %llu, max(0, DS - 1) * width = %d\n",
|
|
val, max(0, ds - 1) * width);
|
|
if (val < max(0, ds - 1) * width)
|
|
return -EINVAL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static unsigned long calc_core_clk_five_taps(unsigned long pclk,
|
|
const struct omap_video_timings *mgr_timings, u16 width,
|
|
u16 height, u16 out_width, u16 out_height,
|
|
enum omap_color_mode color_mode)
|
|
{
|
|
u32 core_clk = 0;
|
|
u64 tmp;
|
|
|
|
if (height <= out_height && width <= out_width)
|
|
return (unsigned long) pclk;
|
|
|
|
if (height > out_height) {
|
|
unsigned int ppl = mgr_timings->x_res;
|
|
|
|
tmp = (u64)pclk * height * out_width;
|
|
do_div(tmp, 2 * out_height * ppl);
|
|
core_clk = tmp;
|
|
|
|
if (height > 2 * out_height) {
|
|
if (ppl == out_width)
|
|
return 0;
|
|
|
|
tmp = (u64)pclk * (height - 2 * out_height) * out_width;
|
|
do_div(tmp, 2 * out_height * (ppl - out_width));
|
|
core_clk = max_t(u32, core_clk, tmp);
|
|
}
|
|
}
|
|
|
|
if (width > out_width) {
|
|
tmp = (u64)pclk * width;
|
|
do_div(tmp, out_width);
|
|
core_clk = max_t(u32, core_clk, tmp);
|
|
|
|
if (color_mode == OMAP_DSS_COLOR_RGB24U)
|
|
core_clk <<= 1;
|
|
}
|
|
|
|
return core_clk;
|
|
}
|
|
|
|
static unsigned long calc_core_clk_24xx(unsigned long pclk, u16 width,
|
|
u16 height, u16 out_width, u16 out_height, bool mem_to_mem)
|
|
{
|
|
if (height > out_height && width > out_width)
|
|
return pclk * 4;
|
|
else
|
|
return pclk * 2;
|
|
}
|
|
|
|
static unsigned long calc_core_clk_34xx(unsigned long pclk, u16 width,
|
|
u16 height, u16 out_width, u16 out_height, bool mem_to_mem)
|
|
{
|
|
unsigned int hf, vf;
|
|
|
|
/*
|
|
* FIXME how to determine the 'A' factor
|
|
* for the no downscaling case ?
|
|
*/
|
|
|
|
if (width > 3 * out_width)
|
|
hf = 4;
|
|
else if (width > 2 * out_width)
|
|
hf = 3;
|
|
else if (width > out_width)
|
|
hf = 2;
|
|
else
|
|
hf = 1;
|
|
if (height > out_height)
|
|
vf = 2;
|
|
else
|
|
vf = 1;
|
|
|
|
return pclk * vf * hf;
|
|
}
|
|
|
|
static unsigned long calc_core_clk_44xx(unsigned long pclk, u16 width,
|
|
u16 height, u16 out_width, u16 out_height, bool mem_to_mem)
|
|
{
|
|
/*
|
|
* If the overlay/writeback is in mem to mem mode, there are no
|
|
* downscaling limitations with respect to pixel clock, return 1 as
|
|
* required core clock to represent that we have sufficient enough
|
|
* core clock to do maximum downscaling
|
|
*/
|
|
if (mem_to_mem)
|
|
return 1;
|
|
|
|
if (width > out_width)
|
|
return DIV_ROUND_UP(pclk, out_width) * width;
|
|
else
|
|
return pclk;
|
|
}
|
|
|
|
static int dispc_ovl_calc_scaling_24xx(unsigned long pclk, unsigned long lclk,
|
|
const struct omap_video_timings *mgr_timings,
|
|
u16 width, u16 height, u16 out_width, u16 out_height,
|
|
enum omap_color_mode color_mode, bool *five_taps,
|
|
int *x_predecim, int *y_predecim, int *decim_x, int *decim_y,
|
|
u16 pos_x, unsigned long *core_clk, bool mem_to_mem)
|
|
{
|
|
int error;
|
|
u16 in_width, in_height;
|
|
int min_factor = min(*decim_x, *decim_y);
|
|
const int maxsinglelinewidth =
|
|
dss_feat_get_param_max(FEAT_PARAM_LINEWIDTH);
|
|
|
|
*five_taps = false;
|
|
|
|
do {
|
|
in_height = height / *decim_y;
|
|
in_width = width / *decim_x;
|
|
*core_clk = dispc.feat->calc_core_clk(pclk, in_width,
|
|
in_height, out_width, out_height, mem_to_mem);
|
|
error = (in_width > maxsinglelinewidth || !*core_clk ||
|
|
*core_clk > dispc_core_clk_rate());
|
|
if (error) {
|
|
if (*decim_x == *decim_y) {
|
|
*decim_x = min_factor;
|
|
++*decim_y;
|
|
} else {
|
|
swap(*decim_x, *decim_y);
|
|
if (*decim_x < *decim_y)
|
|
++*decim_x;
|
|
}
|
|
}
|
|
} while (*decim_x <= *x_predecim && *decim_y <= *y_predecim && error);
|
|
|
|
if (error) {
|
|
DSSERR("failed to find scaling settings\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (in_width > maxsinglelinewidth) {
|
|
DSSERR("Cannot scale max input width exceeded");
|
|
return -EINVAL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int dispc_ovl_calc_scaling_34xx(unsigned long pclk, unsigned long lclk,
|
|
const struct omap_video_timings *mgr_timings,
|
|
u16 width, u16 height, u16 out_width, u16 out_height,
|
|
enum omap_color_mode color_mode, bool *five_taps,
|
|
int *x_predecim, int *y_predecim, int *decim_x, int *decim_y,
|
|
u16 pos_x, unsigned long *core_clk, bool mem_to_mem)
|
|
{
|
|
int error;
|
|
u16 in_width, in_height;
|
|
const int maxsinglelinewidth =
|
|
dss_feat_get_param_max(FEAT_PARAM_LINEWIDTH);
|
|
|
|
do {
|
|
in_height = height / *decim_y;
|
|
in_width = width / *decim_x;
|
|
*five_taps = in_height > out_height;
|
|
|
|
if (in_width > maxsinglelinewidth)
|
|
if (in_height > out_height &&
|
|
in_height < out_height * 2)
|
|
*five_taps = false;
|
|
again:
|
|
if (*five_taps)
|
|
*core_clk = calc_core_clk_five_taps(pclk, mgr_timings,
|
|
in_width, in_height, out_width,
|
|
out_height, color_mode);
|
|
else
|
|
*core_clk = dispc.feat->calc_core_clk(pclk, in_width,
|
|
in_height, out_width, out_height,
|
|
mem_to_mem);
|
|
|
|
error = check_horiz_timing_omap3(pclk, lclk, mgr_timings,
|
|
pos_x, in_width, in_height, out_width,
|
|
out_height, *five_taps);
|
|
if (error && *five_taps) {
|
|
*five_taps = false;
|
|
goto again;
|
|
}
|
|
|
|
error = (error || in_width > maxsinglelinewidth * 2 ||
|
|
(in_width > maxsinglelinewidth && *five_taps) ||
|
|
!*core_clk || *core_clk > dispc_core_clk_rate());
|
|
|
|
if (!error) {
|
|
/* verify that we're inside the limits of scaler */
|
|
if (in_width / 4 > out_width)
|
|
error = 1;
|
|
|
|
if (*five_taps) {
|
|
if (in_height / 4 > out_height)
|
|
error = 1;
|
|
} else {
|
|
if (in_height / 2 > out_height)
|
|
error = 1;
|
|
}
|
|
}
|
|
|
|
if (error)
|
|
++*decim_y;
|
|
} while (*decim_x <= *x_predecim && *decim_y <= *y_predecim && error);
|
|
|
|
if (error) {
|
|
DSSERR("failed to find scaling settings\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (check_horiz_timing_omap3(pclk, lclk, mgr_timings, pos_x, in_width,
|
|
in_height, out_width, out_height, *five_taps)) {
|
|
DSSERR("horizontal timing too tight\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (in_width > (maxsinglelinewidth * 2)) {
|
|
DSSERR("Cannot setup scaling");
|
|
DSSERR("width exceeds maximum width possible");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (in_width > maxsinglelinewidth && *five_taps) {
|
|
DSSERR("cannot setup scaling with five taps");
|
|
return -EINVAL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int dispc_ovl_calc_scaling_44xx(unsigned long pclk, unsigned long lclk,
|
|
const struct omap_video_timings *mgr_timings,
|
|
u16 width, u16 height, u16 out_width, u16 out_height,
|
|
enum omap_color_mode color_mode, bool *five_taps,
|
|
int *x_predecim, int *y_predecim, int *decim_x, int *decim_y,
|
|
u16 pos_x, unsigned long *core_clk, bool mem_to_mem)
|
|
{
|
|
u16 in_width, in_width_max;
|
|
int decim_x_min = *decim_x;
|
|
u16 in_height = height / *decim_y;
|
|
const int maxsinglelinewidth =
|
|
dss_feat_get_param_max(FEAT_PARAM_LINEWIDTH);
|
|
const int maxdownscale = dss_feat_get_param_max(FEAT_PARAM_DOWNSCALE);
|
|
|
|
if (mem_to_mem) {
|
|
in_width_max = out_width * maxdownscale;
|
|
} else {
|
|
in_width_max = dispc_core_clk_rate() /
|
|
DIV_ROUND_UP(pclk, out_width);
|
|
}
|
|
|
|
*decim_x = DIV_ROUND_UP(width, in_width_max);
|
|
|
|
*decim_x = *decim_x > decim_x_min ? *decim_x : decim_x_min;
|
|
if (*decim_x > *x_predecim)
|
|
return -EINVAL;
|
|
|
|
do {
|
|
in_width = width / *decim_x;
|
|
} while (*decim_x <= *x_predecim &&
|
|
in_width > maxsinglelinewidth && ++*decim_x);
|
|
|
|
if (in_width > maxsinglelinewidth) {
|
|
DSSERR("Cannot scale width exceeds max line width");
|
|
return -EINVAL;
|
|
}
|
|
|
|
*core_clk = dispc.feat->calc_core_clk(pclk, in_width, in_height,
|
|
out_width, out_height, mem_to_mem);
|
|
return 0;
|
|
}
|
|
|
|
#define DIV_FRAC(dividend, divisor) \
|
|
((dividend) * 100 / (divisor) - ((dividend) / (divisor) * 100))
|
|
|
|
static int dispc_ovl_calc_scaling(unsigned long pclk, unsigned long lclk,
|
|
enum omap_overlay_caps caps,
|
|
const struct omap_video_timings *mgr_timings,
|
|
u16 width, u16 height, u16 out_width, u16 out_height,
|
|
enum omap_color_mode color_mode, bool *five_taps,
|
|
int *x_predecim, int *y_predecim, u16 pos_x,
|
|
enum omap_dss_rotation_type rotation_type, bool mem_to_mem)
|
|
{
|
|
const int maxdownscale = dss_feat_get_param_max(FEAT_PARAM_DOWNSCALE);
|
|
const int max_decim_limit = 16;
|
|
unsigned long core_clk = 0;
|
|
int decim_x, decim_y, ret;
|
|
|
|
if (width == out_width && height == out_height)
|
|
return 0;
|
|
|
|
if (!mem_to_mem && (pclk == 0 || mgr_timings->pixelclock == 0)) {
|
|
DSSERR("cannot calculate scaling settings: pclk is zero\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if ((caps & OMAP_DSS_OVL_CAP_SCALE) == 0)
|
|
return -EINVAL;
|
|
|
|
if (mem_to_mem) {
|
|
*x_predecim = *y_predecim = 1;
|
|
} else {
|
|
*x_predecim = max_decim_limit;
|
|
*y_predecim = (rotation_type == OMAP_DSS_ROT_TILER &&
|
|
dss_has_feature(FEAT_BURST_2D)) ?
|
|
2 : max_decim_limit;
|
|
}
|
|
|
|
if (color_mode == OMAP_DSS_COLOR_CLUT1 ||
|
|
color_mode == OMAP_DSS_COLOR_CLUT2 ||
|
|
color_mode == OMAP_DSS_COLOR_CLUT4 ||
|
|
color_mode == OMAP_DSS_COLOR_CLUT8) {
|
|
*x_predecim = 1;
|
|
*y_predecim = 1;
|
|
*five_taps = false;
|
|
return 0;
|
|
}
|
|
|
|
decim_x = DIV_ROUND_UP(DIV_ROUND_UP(width, out_width), maxdownscale);
|
|
decim_y = DIV_ROUND_UP(DIV_ROUND_UP(height, out_height), maxdownscale);
|
|
|
|
if (decim_x > *x_predecim || out_width > width * 8)
|
|
return -EINVAL;
|
|
|
|
if (decim_y > *y_predecim || out_height > height * 8)
|
|
return -EINVAL;
|
|
|
|
ret = dispc.feat->calc_scaling(pclk, lclk, mgr_timings, width, height,
|
|
out_width, out_height, color_mode, five_taps,
|
|
x_predecim, y_predecim, &decim_x, &decim_y, pos_x, &core_clk,
|
|
mem_to_mem);
|
|
if (ret)
|
|
return ret;
|
|
|
|
DSSDBG("%dx%d -> %dx%d (%d.%02d x %d.%02d), decim %dx%d %dx%d (%d.%02d x %d.%02d), taps %d, req clk %lu, cur clk %lu\n",
|
|
width, height,
|
|
out_width, out_height,
|
|
out_width / width, DIV_FRAC(out_width, width),
|
|
out_height / height, DIV_FRAC(out_height, height),
|
|
|
|
decim_x, decim_y,
|
|
width / decim_x, height / decim_y,
|
|
out_width / (width / decim_x), DIV_FRAC(out_width, width / decim_x),
|
|
out_height / (height / decim_y), DIV_FRAC(out_height, height / decim_y),
|
|
|
|
*five_taps ? 5 : 3,
|
|
core_clk, dispc_core_clk_rate());
|
|
|
|
if (!core_clk || core_clk > dispc_core_clk_rate()) {
|
|
DSSERR("failed to set up scaling, "
|
|
"required core clk rate = %lu Hz, "
|
|
"current core clk rate = %lu Hz\n",
|
|
core_clk, dispc_core_clk_rate());
|
|
return -EINVAL;
|
|
}
|
|
|
|
*x_predecim = decim_x;
|
|
*y_predecim = decim_y;
|
|
return 0;
|
|
}
|
|
|
|
int dispc_ovl_check(enum omap_plane plane, enum omap_channel channel,
|
|
const struct omap_overlay_info *oi,
|
|
const struct omap_video_timings *timings,
|
|
int *x_predecim, int *y_predecim)
|
|
{
|
|
enum omap_overlay_caps caps = dss_feat_get_overlay_caps(plane);
|
|
bool five_taps = true;
|
|
bool fieldmode = false;
|
|
u16 in_height = oi->height;
|
|
u16 in_width = oi->width;
|
|
bool ilace = timings->interlace;
|
|
u16 out_width, out_height;
|
|
int pos_x = oi->pos_x;
|
|
unsigned long pclk = dispc_mgr_pclk_rate(channel);
|
|
unsigned long lclk = dispc_mgr_lclk_rate(channel);
|
|
|
|
out_width = oi->out_width == 0 ? oi->width : oi->out_width;
|
|
out_height = oi->out_height == 0 ? oi->height : oi->out_height;
|
|
|
|
if (ilace && oi->height == out_height)
|
|
fieldmode = true;
|
|
|
|
if (ilace) {
|
|
if (fieldmode)
|
|
in_height /= 2;
|
|
out_height /= 2;
|
|
|
|
DSSDBG("adjusting for ilace: height %d, out_height %d\n",
|
|
in_height, out_height);
|
|
}
|
|
|
|
if (!dss_feat_color_mode_supported(plane, oi->color_mode))
|
|
return -EINVAL;
|
|
|
|
return dispc_ovl_calc_scaling(pclk, lclk, caps, timings, in_width,
|
|
in_height, out_width, out_height, oi->color_mode,
|
|
&five_taps, x_predecim, y_predecim, pos_x,
|
|
oi->rotation_type, false);
|
|
}
|
|
EXPORT_SYMBOL(dispc_ovl_check);
|
|
|
|
static int dispc_ovl_setup_common(enum omap_plane plane,
|
|
enum omap_overlay_caps caps, u32 paddr, u32 p_uv_addr,
|
|
u16 screen_width, int pos_x, int pos_y, u16 width, u16 height,
|
|
u16 out_width, u16 out_height, enum omap_color_mode color_mode,
|
|
u8 rotation, bool mirror, u8 zorder, u8 pre_mult_alpha,
|
|
u8 global_alpha, enum omap_dss_rotation_type rotation_type,
|
|
bool replication, const struct omap_video_timings *mgr_timings,
|
|
bool mem_to_mem)
|
|
{
|
|
bool five_taps = true;
|
|
bool fieldmode = false;
|
|
int r, cconv = 0;
|
|
unsigned offset0, offset1;
|
|
s32 row_inc;
|
|
s32 pix_inc;
|
|
u16 frame_width, frame_height;
|
|
unsigned int field_offset = 0;
|
|
u16 in_height = height;
|
|
u16 in_width = width;
|
|
int x_predecim = 1, y_predecim = 1;
|
|
bool ilace = mgr_timings->interlace;
|
|
unsigned long pclk = dispc_plane_pclk_rate(plane);
|
|
unsigned long lclk = dispc_plane_lclk_rate(plane);
|
|
|
|
if (paddr == 0 && rotation_type != OMAP_DSS_ROT_TILER)
|
|
return -EINVAL;
|
|
|
|
switch (color_mode) {
|
|
case OMAP_DSS_COLOR_YUV2:
|
|
case OMAP_DSS_COLOR_UYVY:
|
|
case OMAP_DSS_COLOR_NV12:
|
|
if (in_width & 1) {
|
|
DSSERR("input width %d is not even for YUV format\n",
|
|
in_width);
|
|
return -EINVAL;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
out_width = out_width == 0 ? width : out_width;
|
|
out_height = out_height == 0 ? height : out_height;
|
|
|
|
if (ilace && height == out_height)
|
|
fieldmode = true;
|
|
|
|
if (ilace) {
|
|
if (fieldmode)
|
|
in_height /= 2;
|
|
pos_y /= 2;
|
|
out_height /= 2;
|
|
|
|
DSSDBG("adjusting for ilace: height %d, pos_y %d, "
|
|
"out_height %d\n", in_height, pos_y,
|
|
out_height);
|
|
}
|
|
|
|
if (!dss_feat_color_mode_supported(plane, color_mode))
|
|
return -EINVAL;
|
|
|
|
r = dispc_ovl_calc_scaling(pclk, lclk, caps, mgr_timings, in_width,
|
|
in_height, out_width, out_height, color_mode,
|
|
&five_taps, &x_predecim, &y_predecim, pos_x,
|
|
rotation_type, mem_to_mem);
|
|
if (r)
|
|
return r;
|
|
|
|
in_width = in_width / x_predecim;
|
|
in_height = in_height / y_predecim;
|
|
|
|
if (x_predecim > 1 || y_predecim > 1)
|
|
DSSDBG("predecimation %d x %x, new input size %d x %d\n",
|
|
x_predecim, y_predecim, in_width, in_height);
|
|
|
|
switch (color_mode) {
|
|
case OMAP_DSS_COLOR_YUV2:
|
|
case OMAP_DSS_COLOR_UYVY:
|
|
case OMAP_DSS_COLOR_NV12:
|
|
if (in_width & 1) {
|
|
DSSDBG("predecimated input width is not even for YUV format\n");
|
|
DSSDBG("adjusting input width %d -> %d\n",
|
|
in_width, in_width & ~1);
|
|
|
|
in_width &= ~1;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (color_mode == OMAP_DSS_COLOR_YUV2 ||
|
|
color_mode == OMAP_DSS_COLOR_UYVY ||
|
|
color_mode == OMAP_DSS_COLOR_NV12)
|
|
cconv = 1;
|
|
|
|
if (ilace && !fieldmode) {
|
|
/*
|
|
* when downscaling the bottom field may have to start several
|
|
* source lines below the top field. Unfortunately ACCUI
|
|
* registers will only hold the fractional part of the offset
|
|
* so the integer part must be added to the base address of the
|
|
* bottom field.
|
|
*/
|
|
if (!in_height || in_height == out_height)
|
|
field_offset = 0;
|
|
else
|
|
field_offset = in_height / out_height / 2;
|
|
}
|
|
|
|
/* Fields are independent but interleaved in memory. */
|
|
if (fieldmode)
|
|
field_offset = 1;
|
|
|
|
offset0 = 0;
|
|
offset1 = 0;
|
|
row_inc = 0;
|
|
pix_inc = 0;
|
|
|
|
if (plane == OMAP_DSS_WB) {
|
|
frame_width = out_width;
|
|
frame_height = out_height;
|
|
} else {
|
|
frame_width = in_width;
|
|
frame_height = height;
|
|
}
|
|
|
|
if (rotation_type == OMAP_DSS_ROT_TILER)
|
|
calc_tiler_rotation_offset(screen_width, frame_width,
|
|
color_mode, fieldmode, field_offset,
|
|
&offset0, &offset1, &row_inc, &pix_inc,
|
|
x_predecim, y_predecim);
|
|
else if (rotation_type == OMAP_DSS_ROT_DMA)
|
|
calc_dma_rotation_offset(rotation, mirror, screen_width,
|
|
frame_width, frame_height,
|
|
color_mode, fieldmode, field_offset,
|
|
&offset0, &offset1, &row_inc, &pix_inc,
|
|
x_predecim, y_predecim);
|
|
else
|
|
calc_vrfb_rotation_offset(rotation, mirror,
|
|
screen_width, frame_width, frame_height,
|
|
color_mode, fieldmode, field_offset,
|
|
&offset0, &offset1, &row_inc, &pix_inc,
|
|
x_predecim, y_predecim);
|
|
|
|
DSSDBG("offset0 %u, offset1 %u, row_inc %d, pix_inc %d\n",
|
|
offset0, offset1, row_inc, pix_inc);
|
|
|
|
dispc_ovl_set_color_mode(plane, color_mode);
|
|
|
|
dispc_ovl_configure_burst_type(plane, rotation_type);
|
|
|
|
dispc_ovl_set_ba0(plane, paddr + offset0);
|
|
dispc_ovl_set_ba1(plane, paddr + offset1);
|
|
|
|
if (OMAP_DSS_COLOR_NV12 == color_mode) {
|
|
dispc_ovl_set_ba0_uv(plane, p_uv_addr + offset0);
|
|
dispc_ovl_set_ba1_uv(plane, p_uv_addr + offset1);
|
|
}
|
|
|
|
if (dispc.feat->last_pixel_inc_missing)
|
|
row_inc += pix_inc - 1;
|
|
|
|
dispc_ovl_set_row_inc(plane, row_inc);
|
|
dispc_ovl_set_pix_inc(plane, pix_inc);
|
|
|
|
DSSDBG("%d,%d %dx%d -> %dx%d\n", pos_x, pos_y, in_width,
|
|
in_height, out_width, out_height);
|
|
|
|
dispc_ovl_set_pos(plane, caps, pos_x, pos_y);
|
|
|
|
dispc_ovl_set_input_size(plane, in_width, in_height);
|
|
|
|
if (caps & OMAP_DSS_OVL_CAP_SCALE) {
|
|
dispc_ovl_set_scaling(plane, in_width, in_height, out_width,
|
|
out_height, ilace, five_taps, fieldmode,
|
|
color_mode, rotation);
|
|
dispc_ovl_set_output_size(plane, out_width, out_height);
|
|
dispc_ovl_set_vid_color_conv(plane, cconv);
|
|
}
|
|
|
|
dispc_ovl_set_rotation_attrs(plane, rotation, rotation_type, mirror,
|
|
color_mode);
|
|
|
|
dispc_ovl_set_zorder(plane, caps, zorder);
|
|
dispc_ovl_set_pre_mult_alpha(plane, caps, pre_mult_alpha);
|
|
dispc_ovl_setup_global_alpha(plane, caps, global_alpha);
|
|
|
|
dispc_ovl_enable_replication(plane, caps, replication);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int dispc_ovl_setup(enum omap_plane plane, const struct omap_overlay_info *oi,
|
|
bool replication, const struct omap_video_timings *mgr_timings,
|
|
bool mem_to_mem)
|
|
{
|
|
int r;
|
|
enum omap_overlay_caps caps = dss_feat_get_overlay_caps(plane);
|
|
enum omap_channel channel;
|
|
|
|
channel = dispc_ovl_get_channel_out(plane);
|
|
|
|
DSSDBG("dispc_ovl_setup %d, pa %pad, pa_uv %pad, sw %d, %d,%d, %dx%d ->"
|
|
" %dx%d, cmode %x, rot %d, mir %d, chan %d repl %d\n",
|
|
plane, &oi->paddr, &oi->p_uv_addr, oi->screen_width, oi->pos_x,
|
|
oi->pos_y, oi->width, oi->height, oi->out_width, oi->out_height,
|
|
oi->color_mode, oi->rotation, oi->mirror, channel, replication);
|
|
|
|
r = dispc_ovl_setup_common(plane, caps, oi->paddr, oi->p_uv_addr,
|
|
oi->screen_width, oi->pos_x, oi->pos_y, oi->width, oi->height,
|
|
oi->out_width, oi->out_height, oi->color_mode, oi->rotation,
|
|
oi->mirror, oi->zorder, oi->pre_mult_alpha, oi->global_alpha,
|
|
oi->rotation_type, replication, mgr_timings, mem_to_mem);
|
|
|
|
return r;
|
|
}
|
|
EXPORT_SYMBOL(dispc_ovl_setup);
|
|
|
|
int dispc_wb_setup(const struct omap_dss_writeback_info *wi,
|
|
bool mem_to_mem, const struct omap_video_timings *mgr_timings)
|
|
{
|
|
int r;
|
|
u32 l;
|
|
enum omap_plane plane = OMAP_DSS_WB;
|
|
const int pos_x = 0, pos_y = 0;
|
|
const u8 zorder = 0, global_alpha = 0;
|
|
const bool replication = false;
|
|
bool truncation;
|
|
int in_width = mgr_timings->x_res;
|
|
int in_height = mgr_timings->y_res;
|
|
enum omap_overlay_caps caps =
|
|
OMAP_DSS_OVL_CAP_SCALE | OMAP_DSS_OVL_CAP_PRE_MULT_ALPHA;
|
|
|
|
DSSDBG("dispc_wb_setup, pa %x, pa_uv %x, %d,%d -> %dx%d, cmode %x, "
|
|
"rot %d, mir %d\n", wi->paddr, wi->p_uv_addr, in_width,
|
|
in_height, wi->width, wi->height, wi->color_mode, wi->rotation,
|
|
wi->mirror);
|
|
|
|
r = dispc_ovl_setup_common(plane, caps, wi->paddr, wi->p_uv_addr,
|
|
wi->buf_width, pos_x, pos_y, in_width, in_height, wi->width,
|
|
wi->height, wi->color_mode, wi->rotation, wi->mirror, zorder,
|
|
wi->pre_mult_alpha, global_alpha, wi->rotation_type,
|
|
replication, mgr_timings, mem_to_mem);
|
|
|
|
switch (wi->color_mode) {
|
|
case OMAP_DSS_COLOR_RGB16:
|
|
case OMAP_DSS_COLOR_RGB24P:
|
|
case OMAP_DSS_COLOR_ARGB16:
|
|
case OMAP_DSS_COLOR_RGBA16:
|
|
case OMAP_DSS_COLOR_RGB12U:
|
|
case OMAP_DSS_COLOR_ARGB16_1555:
|
|
case OMAP_DSS_COLOR_XRGB16_1555:
|
|
case OMAP_DSS_COLOR_RGBX16:
|
|
truncation = true;
|
|
break;
|
|
default:
|
|
truncation = false;
|
|
break;
|
|
}
|
|
|
|
/* setup extra DISPC_WB_ATTRIBUTES */
|
|
l = dispc_read_reg(DISPC_OVL_ATTRIBUTES(plane));
|
|
l = FLD_MOD(l, truncation, 10, 10); /* TRUNCATIONENABLE */
|
|
l = FLD_MOD(l, mem_to_mem, 19, 19); /* WRITEBACKMODE */
|
|
if (mem_to_mem)
|
|
l = FLD_MOD(l, 1, 26, 24); /* CAPTUREMODE */
|
|
else
|
|
l = FLD_MOD(l, 0, 26, 24); /* CAPTUREMODE */
|
|
dispc_write_reg(DISPC_OVL_ATTRIBUTES(plane), l);
|
|
|
|
if (mem_to_mem) {
|
|
/* WBDELAYCOUNT */
|
|
REG_FLD_MOD(DISPC_OVL_ATTRIBUTES2(plane), 0, 7, 0);
|
|
} else {
|
|
int wbdelay;
|
|
|
|
wbdelay = min(mgr_timings->vfp + mgr_timings->vsw +
|
|
mgr_timings->vbp, 255);
|
|
|
|
/* WBDELAYCOUNT */
|
|
REG_FLD_MOD(DISPC_OVL_ATTRIBUTES2(plane), wbdelay, 7, 0);
|
|
}
|
|
|
|
return r;
|
|
}
|
|
|
|
int dispc_ovl_enable(enum omap_plane plane, bool enable)
|
|
{
|
|
DSSDBG("dispc_enable_plane %d, %d\n", plane, enable);
|
|
|
|
REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(plane), enable ? 1 : 0, 0, 0);
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(dispc_ovl_enable);
|
|
|
|
bool dispc_ovl_enabled(enum omap_plane plane)
|
|
{
|
|
return REG_GET(DISPC_OVL_ATTRIBUTES(plane), 0, 0);
|
|
}
|
|
EXPORT_SYMBOL(dispc_ovl_enabled);
|
|
|
|
void dispc_mgr_enable(enum omap_channel channel, bool enable)
|
|
{
|
|
mgr_fld_write(channel, DISPC_MGR_FLD_ENABLE, enable);
|
|
/* flush posted write */
|
|
mgr_fld_read(channel, DISPC_MGR_FLD_ENABLE);
|
|
}
|
|
EXPORT_SYMBOL(dispc_mgr_enable);
|
|
|
|
bool dispc_mgr_is_enabled(enum omap_channel channel)
|
|
{
|
|
return !!mgr_fld_read(channel, DISPC_MGR_FLD_ENABLE);
|
|
}
|
|
EXPORT_SYMBOL(dispc_mgr_is_enabled);
|
|
|
|
void dispc_wb_enable(bool enable)
|
|
{
|
|
dispc_ovl_enable(OMAP_DSS_WB, enable);
|
|
}
|
|
|
|
bool dispc_wb_is_enabled(void)
|
|
{
|
|
return dispc_ovl_enabled(OMAP_DSS_WB);
|
|
}
|
|
|
|
static void dispc_lcd_enable_signal_polarity(bool act_high)
|
|
{
|
|
if (!dss_has_feature(FEAT_LCDENABLEPOL))
|
|
return;
|
|
|
|
REG_FLD_MOD(DISPC_CONTROL, act_high ? 1 : 0, 29, 29);
|
|
}
|
|
|
|
void dispc_lcd_enable_signal(bool enable)
|
|
{
|
|
if (!dss_has_feature(FEAT_LCDENABLESIGNAL))
|
|
return;
|
|
|
|
REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 28, 28);
|
|
}
|
|
|
|
void dispc_pck_free_enable(bool enable)
|
|
{
|
|
if (!dss_has_feature(FEAT_PCKFREEENABLE))
|
|
return;
|
|
|
|
REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 27, 27);
|
|
}
|
|
|
|
static void dispc_mgr_enable_fifohandcheck(enum omap_channel channel, bool enable)
|
|
{
|
|
mgr_fld_write(channel, DISPC_MGR_FLD_FIFOHANDCHECK, enable);
|
|
}
|
|
|
|
|
|
static void dispc_mgr_set_lcd_type_tft(enum omap_channel channel)
|
|
{
|
|
mgr_fld_write(channel, DISPC_MGR_FLD_STNTFT, 1);
|
|
}
|
|
|
|
static void dispc_set_loadmode(enum omap_dss_load_mode mode)
|
|
{
|
|
REG_FLD_MOD(DISPC_CONFIG, mode, 2, 1);
|
|
}
|
|
|
|
|
|
static void dispc_mgr_set_default_color(enum omap_channel channel, u32 color)
|
|
{
|
|
dispc_write_reg(DISPC_DEFAULT_COLOR(channel), color);
|
|
}
|
|
|
|
static void dispc_mgr_set_trans_key(enum omap_channel ch,
|
|
enum omap_dss_trans_key_type type,
|
|
u32 trans_key)
|
|
{
|
|
mgr_fld_write(ch, DISPC_MGR_FLD_TCKSELECTION, type);
|
|
|
|
dispc_write_reg(DISPC_TRANS_COLOR(ch), trans_key);
|
|
}
|
|
|
|
static void dispc_mgr_enable_trans_key(enum omap_channel ch, bool enable)
|
|
{
|
|
mgr_fld_write(ch, DISPC_MGR_FLD_TCKENABLE, enable);
|
|
}
|
|
|
|
static void dispc_mgr_enable_alpha_fixed_zorder(enum omap_channel ch,
|
|
bool enable)
|
|
{
|
|
if (!dss_has_feature(FEAT_ALPHA_FIXED_ZORDER))
|
|
return;
|
|
|
|
if (ch == OMAP_DSS_CHANNEL_LCD)
|
|
REG_FLD_MOD(DISPC_CONFIG, enable, 18, 18);
|
|
else if (ch == OMAP_DSS_CHANNEL_DIGIT)
|
|
REG_FLD_MOD(DISPC_CONFIG, enable, 19, 19);
|
|
}
|
|
|
|
void dispc_mgr_setup(enum omap_channel channel,
|
|
const struct omap_overlay_manager_info *info)
|
|
{
|
|
dispc_mgr_set_default_color(channel, info->default_color);
|
|
dispc_mgr_set_trans_key(channel, info->trans_key_type, info->trans_key);
|
|
dispc_mgr_enable_trans_key(channel, info->trans_enabled);
|
|
dispc_mgr_enable_alpha_fixed_zorder(channel,
|
|
info->partial_alpha_enabled);
|
|
if (dss_has_feature(FEAT_CPR)) {
|
|
dispc_mgr_enable_cpr(channel, info->cpr_enable);
|
|
dispc_mgr_set_cpr_coef(channel, &info->cpr_coefs);
|
|
}
|
|
}
|
|
EXPORT_SYMBOL(dispc_mgr_setup);
|
|
|
|
static void dispc_mgr_set_tft_data_lines(enum omap_channel channel, u8 data_lines)
|
|
{
|
|
int code;
|
|
|
|
switch (data_lines) {
|
|
case 12:
|
|
code = 0;
|
|
break;
|
|
case 16:
|
|
code = 1;
|
|
break;
|
|
case 18:
|
|
code = 2;
|
|
break;
|
|
case 24:
|
|
code = 3;
|
|
break;
|
|
default:
|
|
BUG();
|
|
return;
|
|
}
|
|
|
|
mgr_fld_write(channel, DISPC_MGR_FLD_TFTDATALINES, code);
|
|
}
|
|
|
|
static void dispc_mgr_set_io_pad_mode(enum dss_io_pad_mode mode)
|
|
{
|
|
u32 l;
|
|
int gpout0, gpout1;
|
|
|
|
switch (mode) {
|
|
case DSS_IO_PAD_MODE_RESET:
|
|
gpout0 = 0;
|
|
gpout1 = 0;
|
|
break;
|
|
case DSS_IO_PAD_MODE_RFBI:
|
|
gpout0 = 1;
|
|
gpout1 = 0;
|
|
break;
|
|
case DSS_IO_PAD_MODE_BYPASS:
|
|
gpout0 = 1;
|
|
gpout1 = 1;
|
|
break;
|
|
default:
|
|
BUG();
|
|
return;
|
|
}
|
|
|
|
l = dispc_read_reg(DISPC_CONTROL);
|
|
l = FLD_MOD(l, gpout0, 15, 15);
|
|
l = FLD_MOD(l, gpout1, 16, 16);
|
|
dispc_write_reg(DISPC_CONTROL, l);
|
|
}
|
|
|
|
static void dispc_mgr_enable_stallmode(enum omap_channel channel, bool enable)
|
|
{
|
|
mgr_fld_write(channel, DISPC_MGR_FLD_STALLMODE, enable);
|
|
}
|
|
|
|
void dispc_mgr_set_lcd_config(enum omap_channel channel,
|
|
const struct dss_lcd_mgr_config *config)
|
|
{
|
|
dispc_mgr_set_io_pad_mode(config->io_pad_mode);
|
|
|
|
dispc_mgr_enable_stallmode(channel, config->stallmode);
|
|
dispc_mgr_enable_fifohandcheck(channel, config->fifohandcheck);
|
|
|
|
dispc_mgr_set_clock_div(channel, &config->clock_info);
|
|
|
|
dispc_mgr_set_tft_data_lines(channel, config->video_port_width);
|
|
|
|
dispc_lcd_enable_signal_polarity(config->lcden_sig_polarity);
|
|
|
|
dispc_mgr_set_lcd_type_tft(channel);
|
|
}
|
|
EXPORT_SYMBOL(dispc_mgr_set_lcd_config);
|
|
|
|
static bool _dispc_mgr_size_ok(u16 width, u16 height)
|
|
{
|
|
return width <= dispc.feat->mgr_width_max &&
|
|
height <= dispc.feat->mgr_height_max;
|
|
}
|
|
|
|
static bool _dispc_lcd_timings_ok(int hsw, int hfp, int hbp,
|
|
int vsw, int vfp, int vbp)
|
|
{
|
|
if (hsw < 1 || hsw > dispc.feat->sw_max ||
|
|
hfp < 1 || hfp > dispc.feat->hp_max ||
|
|
hbp < 1 || hbp > dispc.feat->hp_max ||
|
|
vsw < 1 || vsw > dispc.feat->sw_max ||
|
|
vfp < 0 || vfp > dispc.feat->vp_max ||
|
|
vbp < 0 || vbp > dispc.feat->vp_max)
|
|
return false;
|
|
return true;
|
|
}
|
|
|
|
static bool _dispc_mgr_pclk_ok(enum omap_channel channel,
|
|
unsigned long pclk)
|
|
{
|
|
if (dss_mgr_is_lcd(channel))
|
|
return pclk <= dispc.feat->max_lcd_pclk ? true : false;
|
|
else
|
|
return pclk <= dispc.feat->max_tv_pclk ? true : false;
|
|
}
|
|
|
|
bool dispc_mgr_timings_ok(enum omap_channel channel,
|
|
const struct omap_video_timings *timings)
|
|
{
|
|
if (!_dispc_mgr_size_ok(timings->x_res, timings->y_res))
|
|
return false;
|
|
|
|
if (!_dispc_mgr_pclk_ok(channel, timings->pixelclock))
|
|
return false;
|
|
|
|
if (dss_mgr_is_lcd(channel)) {
|
|
/* TODO: OMAP4+ supports interlace for LCD outputs */
|
|
if (timings->interlace)
|
|
return false;
|
|
|
|
if (!_dispc_lcd_timings_ok(timings->hsw, timings->hfp,
|
|
timings->hbp, timings->vsw, timings->vfp,
|
|
timings->vbp))
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
static void _dispc_mgr_set_lcd_timings(enum omap_channel channel, int hsw,
|
|
int hfp, int hbp, int vsw, int vfp, int vbp,
|
|
enum omap_dss_signal_level vsync_level,
|
|
enum omap_dss_signal_level hsync_level,
|
|
enum omap_dss_signal_edge data_pclk_edge,
|
|
enum omap_dss_signal_level de_level,
|
|
enum omap_dss_signal_edge sync_pclk_edge)
|
|
|
|
{
|
|
u32 timing_h, timing_v, l;
|
|
bool onoff, rf, ipc, vs, hs, de;
|
|
|
|
timing_h = FLD_VAL(hsw-1, dispc.feat->sw_start, 0) |
|
|
FLD_VAL(hfp-1, dispc.feat->fp_start, 8) |
|
|
FLD_VAL(hbp-1, dispc.feat->bp_start, 20);
|
|
timing_v = FLD_VAL(vsw-1, dispc.feat->sw_start, 0) |
|
|
FLD_VAL(vfp, dispc.feat->fp_start, 8) |
|
|
FLD_VAL(vbp, dispc.feat->bp_start, 20);
|
|
|
|
dispc_write_reg(DISPC_TIMING_H(channel), timing_h);
|
|
dispc_write_reg(DISPC_TIMING_V(channel), timing_v);
|
|
|
|
switch (vsync_level) {
|
|
case OMAPDSS_SIG_ACTIVE_LOW:
|
|
vs = true;
|
|
break;
|
|
case OMAPDSS_SIG_ACTIVE_HIGH:
|
|
vs = false;
|
|
break;
|
|
default:
|
|
BUG();
|
|
}
|
|
|
|
switch (hsync_level) {
|
|
case OMAPDSS_SIG_ACTIVE_LOW:
|
|
hs = true;
|
|
break;
|
|
case OMAPDSS_SIG_ACTIVE_HIGH:
|
|
hs = false;
|
|
break;
|
|
default:
|
|
BUG();
|
|
}
|
|
|
|
switch (de_level) {
|
|
case OMAPDSS_SIG_ACTIVE_LOW:
|
|
de = true;
|
|
break;
|
|
case OMAPDSS_SIG_ACTIVE_HIGH:
|
|
de = false;
|
|
break;
|
|
default:
|
|
BUG();
|
|
}
|
|
|
|
switch (data_pclk_edge) {
|
|
case OMAPDSS_DRIVE_SIG_RISING_EDGE:
|
|
ipc = false;
|
|
break;
|
|
case OMAPDSS_DRIVE_SIG_FALLING_EDGE:
|
|
ipc = true;
|
|
break;
|
|
default:
|
|
BUG();
|
|
}
|
|
|
|
/* always use the 'rf' setting */
|
|
onoff = true;
|
|
|
|
switch (sync_pclk_edge) {
|
|
case OMAPDSS_DRIVE_SIG_FALLING_EDGE:
|
|
rf = false;
|
|
break;
|
|
case OMAPDSS_DRIVE_SIG_RISING_EDGE:
|
|
rf = true;
|
|
break;
|
|
default:
|
|
BUG();
|
|
}
|
|
|
|
l = FLD_VAL(onoff, 17, 17) |
|
|
FLD_VAL(rf, 16, 16) |
|
|
FLD_VAL(de, 15, 15) |
|
|
FLD_VAL(ipc, 14, 14) |
|
|
FLD_VAL(hs, 13, 13) |
|
|
FLD_VAL(vs, 12, 12);
|
|
|
|
/* always set ALIGN bit when available */
|
|
if (dispc.feat->supports_sync_align)
|
|
l |= (1 << 18);
|
|
|
|
dispc_write_reg(DISPC_POL_FREQ(channel), l);
|
|
|
|
if (dispc.syscon_pol) {
|
|
const int shifts[] = {
|
|
[OMAP_DSS_CHANNEL_LCD] = 0,
|
|
[OMAP_DSS_CHANNEL_LCD2] = 1,
|
|
[OMAP_DSS_CHANNEL_LCD3] = 2,
|
|
};
|
|
|
|
u32 mask, val;
|
|
|
|
mask = (1 << 0) | (1 << 3) | (1 << 6);
|
|
val = (rf << 0) | (ipc << 3) | (onoff << 6);
|
|
|
|
mask <<= 16 + shifts[channel];
|
|
val <<= 16 + shifts[channel];
|
|
|
|
regmap_update_bits(dispc.syscon_pol, dispc.syscon_pol_offset,
|
|
mask, val);
|
|
}
|
|
}
|
|
|
|
/* change name to mode? */
|
|
void dispc_mgr_set_timings(enum omap_channel channel,
|
|
const struct omap_video_timings *timings)
|
|
{
|
|
unsigned xtot, ytot;
|
|
unsigned long ht, vt;
|
|
struct omap_video_timings t = *timings;
|
|
|
|
DSSDBG("channel %d xres %u yres %u\n", channel, t.x_res, t.y_res);
|
|
|
|
if (!dispc_mgr_timings_ok(channel, &t)) {
|
|
BUG();
|
|
return;
|
|
}
|
|
|
|
if (dss_mgr_is_lcd(channel)) {
|
|
_dispc_mgr_set_lcd_timings(channel, t.hsw, t.hfp, t.hbp, t.vsw,
|
|
t.vfp, t.vbp, t.vsync_level, t.hsync_level,
|
|
t.data_pclk_edge, t.de_level, t.sync_pclk_edge);
|
|
|
|
xtot = t.x_res + t.hfp + t.hsw + t.hbp;
|
|
ytot = t.y_res + t.vfp + t.vsw + t.vbp;
|
|
|
|
ht = timings->pixelclock / xtot;
|
|
vt = timings->pixelclock / xtot / ytot;
|
|
|
|
DSSDBG("pck %u\n", timings->pixelclock);
|
|
DSSDBG("hsw %d hfp %d hbp %d vsw %d vfp %d vbp %d\n",
|
|
t.hsw, t.hfp, t.hbp, t.vsw, t.vfp, t.vbp);
|
|
DSSDBG("vsync_level %d hsync_level %d data_pclk_edge %d de_level %d sync_pclk_edge %d\n",
|
|
t.vsync_level, t.hsync_level, t.data_pclk_edge,
|
|
t.de_level, t.sync_pclk_edge);
|
|
|
|
DSSDBG("hsync %luHz, vsync %luHz\n", ht, vt);
|
|
} else {
|
|
if (t.interlace)
|
|
t.y_res /= 2;
|
|
}
|
|
|
|
dispc_mgr_set_size(channel, t.x_res, t.y_res);
|
|
}
|
|
EXPORT_SYMBOL(dispc_mgr_set_timings);
|
|
|
|
static void dispc_mgr_set_lcd_divisor(enum omap_channel channel, u16 lck_div,
|
|
u16 pck_div)
|
|
{
|
|
BUG_ON(lck_div < 1);
|
|
BUG_ON(pck_div < 1);
|
|
|
|
dispc_write_reg(DISPC_DIVISORo(channel),
|
|
FLD_VAL(lck_div, 23, 16) | FLD_VAL(pck_div, 7, 0));
|
|
|
|
if (!dss_has_feature(FEAT_CORE_CLK_DIV) &&
|
|
channel == OMAP_DSS_CHANNEL_LCD)
|
|
dispc.core_clk_rate = dispc_fclk_rate() / lck_div;
|
|
}
|
|
|
|
static void dispc_mgr_get_lcd_divisor(enum omap_channel channel, int *lck_div,
|
|
int *pck_div)
|
|
{
|
|
u32 l;
|
|
l = dispc_read_reg(DISPC_DIVISORo(channel));
|
|
*lck_div = FLD_GET(l, 23, 16);
|
|
*pck_div = FLD_GET(l, 7, 0);
|
|
}
|
|
|
|
static unsigned long dispc_fclk_rate(void)
|
|
{
|
|
struct dss_pll *pll;
|
|
unsigned long r = 0;
|
|
|
|
switch (dss_get_dispc_clk_source()) {
|
|
case OMAP_DSS_CLK_SRC_FCK:
|
|
r = dss_get_dispc_clk_rate();
|
|
break;
|
|
case OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DISPC:
|
|
pll = dss_pll_find("dsi0");
|
|
if (!pll)
|
|
pll = dss_pll_find("video0");
|
|
|
|
r = pll->cinfo.clkout[0];
|
|
break;
|
|
case OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DISPC:
|
|
pll = dss_pll_find("dsi1");
|
|
if (!pll)
|
|
pll = dss_pll_find("video1");
|
|
|
|
r = pll->cinfo.clkout[0];
|
|
break;
|
|
default:
|
|
BUG();
|
|
return 0;
|
|
}
|
|
|
|
return r;
|
|
}
|
|
|
|
static unsigned long dispc_mgr_lclk_rate(enum omap_channel channel)
|
|
{
|
|
struct dss_pll *pll;
|
|
int lcd;
|
|
unsigned long r;
|
|
u32 l;
|
|
|
|
if (dss_mgr_is_lcd(channel)) {
|
|
l = dispc_read_reg(DISPC_DIVISORo(channel));
|
|
|
|
lcd = FLD_GET(l, 23, 16);
|
|
|
|
switch (dss_get_lcd_clk_source(channel)) {
|
|
case OMAP_DSS_CLK_SRC_FCK:
|
|
r = dss_get_dispc_clk_rate();
|
|
break;
|
|
case OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DISPC:
|
|
pll = dss_pll_find("dsi0");
|
|
if (!pll)
|
|
pll = dss_pll_find("video0");
|
|
|
|
r = pll->cinfo.clkout[0];
|
|
break;
|
|
case OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DISPC:
|
|
pll = dss_pll_find("dsi1");
|
|
if (!pll)
|
|
pll = dss_pll_find("video1");
|
|
|
|
r = pll->cinfo.clkout[0];
|
|
break;
|
|
default:
|
|
BUG();
|
|
return 0;
|
|
}
|
|
|
|
return r / lcd;
|
|
} else {
|
|
return dispc_fclk_rate();
|
|
}
|
|
}
|
|
|
|
static unsigned long dispc_mgr_pclk_rate(enum omap_channel channel)
|
|
{
|
|
unsigned long r;
|
|
|
|
if (dss_mgr_is_lcd(channel)) {
|
|
int pcd;
|
|
u32 l;
|
|
|
|
l = dispc_read_reg(DISPC_DIVISORo(channel));
|
|
|
|
pcd = FLD_GET(l, 7, 0);
|
|
|
|
r = dispc_mgr_lclk_rate(channel);
|
|
|
|
return r / pcd;
|
|
} else {
|
|
return dispc.tv_pclk_rate;
|
|
}
|
|
}
|
|
|
|
void dispc_set_tv_pclk(unsigned long pclk)
|
|
{
|
|
dispc.tv_pclk_rate = pclk;
|
|
}
|
|
|
|
static unsigned long dispc_core_clk_rate(void)
|
|
{
|
|
return dispc.core_clk_rate;
|
|
}
|
|
|
|
static unsigned long dispc_plane_pclk_rate(enum omap_plane plane)
|
|
{
|
|
enum omap_channel channel;
|
|
|
|
if (plane == OMAP_DSS_WB)
|
|
return 0;
|
|
|
|
channel = dispc_ovl_get_channel_out(plane);
|
|
|
|
return dispc_mgr_pclk_rate(channel);
|
|
}
|
|
|
|
static unsigned long dispc_plane_lclk_rate(enum omap_plane plane)
|
|
{
|
|
enum omap_channel channel;
|
|
|
|
if (plane == OMAP_DSS_WB)
|
|
return 0;
|
|
|
|
channel = dispc_ovl_get_channel_out(plane);
|
|
|
|
return dispc_mgr_lclk_rate(channel);
|
|
}
|
|
|
|
static void dispc_dump_clocks_channel(struct seq_file *s, enum omap_channel channel)
|
|
{
|
|
int lcd, pcd;
|
|
enum omap_dss_clk_source lcd_clk_src;
|
|
|
|
seq_printf(s, "- %s -\n", mgr_desc[channel].name);
|
|
|
|
lcd_clk_src = dss_get_lcd_clk_source(channel);
|
|
|
|
seq_printf(s, "%s clk source = %s (%s)\n", mgr_desc[channel].name,
|
|
dss_get_generic_clk_source_name(lcd_clk_src),
|
|
dss_feat_get_clk_source_name(lcd_clk_src));
|
|
|
|
dispc_mgr_get_lcd_divisor(channel, &lcd, &pcd);
|
|
|
|
seq_printf(s, "lck\t\t%-16lulck div\t%u\n",
|
|
dispc_mgr_lclk_rate(channel), lcd);
|
|
seq_printf(s, "pck\t\t%-16lupck div\t%u\n",
|
|
dispc_mgr_pclk_rate(channel), pcd);
|
|
}
|
|
|
|
void dispc_dump_clocks(struct seq_file *s)
|
|
{
|
|
int lcd;
|
|
u32 l;
|
|
enum omap_dss_clk_source dispc_clk_src = dss_get_dispc_clk_source();
|
|
|
|
if (dispc_runtime_get())
|
|
return;
|
|
|
|
seq_printf(s, "- DISPC -\n");
|
|
|
|
seq_printf(s, "dispc fclk source = %s (%s)\n",
|
|
dss_get_generic_clk_source_name(dispc_clk_src),
|
|
dss_feat_get_clk_source_name(dispc_clk_src));
|
|
|
|
seq_printf(s, "fck\t\t%-16lu\n", dispc_fclk_rate());
|
|
|
|
if (dss_has_feature(FEAT_CORE_CLK_DIV)) {
|
|
seq_printf(s, "- DISPC-CORE-CLK -\n");
|
|
l = dispc_read_reg(DISPC_DIVISOR);
|
|
lcd = FLD_GET(l, 23, 16);
|
|
|
|
seq_printf(s, "lck\t\t%-16lulck div\t%u\n",
|
|
(dispc_fclk_rate()/lcd), lcd);
|
|
}
|
|
|
|
dispc_dump_clocks_channel(s, OMAP_DSS_CHANNEL_LCD);
|
|
|
|
if (dss_has_feature(FEAT_MGR_LCD2))
|
|
dispc_dump_clocks_channel(s, OMAP_DSS_CHANNEL_LCD2);
|
|
if (dss_has_feature(FEAT_MGR_LCD3))
|
|
dispc_dump_clocks_channel(s, OMAP_DSS_CHANNEL_LCD3);
|
|
|
|
dispc_runtime_put();
|
|
}
|
|
|
|
static void dispc_dump_regs(struct seq_file *s)
|
|
{
|
|
int i, j;
|
|
const char *mgr_names[] = {
|
|
[OMAP_DSS_CHANNEL_LCD] = "LCD",
|
|
[OMAP_DSS_CHANNEL_DIGIT] = "TV",
|
|
[OMAP_DSS_CHANNEL_LCD2] = "LCD2",
|
|
[OMAP_DSS_CHANNEL_LCD3] = "LCD3",
|
|
};
|
|
const char *ovl_names[] = {
|
|
[OMAP_DSS_GFX] = "GFX",
|
|
[OMAP_DSS_VIDEO1] = "VID1",
|
|
[OMAP_DSS_VIDEO2] = "VID2",
|
|
[OMAP_DSS_VIDEO3] = "VID3",
|
|
[OMAP_DSS_WB] = "WB",
|
|
};
|
|
const char **p_names;
|
|
|
|
#define DUMPREG(r) seq_printf(s, "%-50s %08x\n", #r, dispc_read_reg(r))
|
|
|
|
if (dispc_runtime_get())
|
|
return;
|
|
|
|
/* DISPC common registers */
|
|
DUMPREG(DISPC_REVISION);
|
|
DUMPREG(DISPC_SYSCONFIG);
|
|
DUMPREG(DISPC_SYSSTATUS);
|
|
DUMPREG(DISPC_IRQSTATUS);
|
|
DUMPREG(DISPC_IRQENABLE);
|
|
DUMPREG(DISPC_CONTROL);
|
|
DUMPREG(DISPC_CONFIG);
|
|
DUMPREG(DISPC_CAPABLE);
|
|
DUMPREG(DISPC_LINE_STATUS);
|
|
DUMPREG(DISPC_LINE_NUMBER);
|
|
if (dss_has_feature(FEAT_ALPHA_FIXED_ZORDER) ||
|
|
dss_has_feature(FEAT_ALPHA_FREE_ZORDER))
|
|
DUMPREG(DISPC_GLOBAL_ALPHA);
|
|
if (dss_has_feature(FEAT_MGR_LCD2)) {
|
|
DUMPREG(DISPC_CONTROL2);
|
|
DUMPREG(DISPC_CONFIG2);
|
|
}
|
|
if (dss_has_feature(FEAT_MGR_LCD3)) {
|
|
DUMPREG(DISPC_CONTROL3);
|
|
DUMPREG(DISPC_CONFIG3);
|
|
}
|
|
if (dss_has_feature(FEAT_MFLAG))
|
|
DUMPREG(DISPC_GLOBAL_MFLAG_ATTRIBUTE);
|
|
|
|
#undef DUMPREG
|
|
|
|
#define DISPC_REG(i, name) name(i)
|
|
#define DUMPREG(i, r) seq_printf(s, "%s(%s)%*s %08x\n", #r, p_names[i], \
|
|
(int)(48 - strlen(#r) - strlen(p_names[i])), " ", \
|
|
dispc_read_reg(DISPC_REG(i, r)))
|
|
|
|
p_names = mgr_names;
|
|
|
|
/* DISPC channel specific registers */
|
|
for (i = 0; i < dss_feat_get_num_mgrs(); i++) {
|
|
DUMPREG(i, DISPC_DEFAULT_COLOR);
|
|
DUMPREG(i, DISPC_TRANS_COLOR);
|
|
DUMPREG(i, DISPC_SIZE_MGR);
|
|
|
|
if (i == OMAP_DSS_CHANNEL_DIGIT)
|
|
continue;
|
|
|
|
DUMPREG(i, DISPC_TIMING_H);
|
|
DUMPREG(i, DISPC_TIMING_V);
|
|
DUMPREG(i, DISPC_POL_FREQ);
|
|
DUMPREG(i, DISPC_DIVISORo);
|
|
|
|
DUMPREG(i, DISPC_DATA_CYCLE1);
|
|
DUMPREG(i, DISPC_DATA_CYCLE2);
|
|
DUMPREG(i, DISPC_DATA_CYCLE3);
|
|
|
|
if (dss_has_feature(FEAT_CPR)) {
|
|
DUMPREG(i, DISPC_CPR_COEF_R);
|
|
DUMPREG(i, DISPC_CPR_COEF_G);
|
|
DUMPREG(i, DISPC_CPR_COEF_B);
|
|
}
|
|
}
|
|
|
|
p_names = ovl_names;
|
|
|
|
for (i = 0; i < dss_feat_get_num_ovls(); i++) {
|
|
DUMPREG(i, DISPC_OVL_BA0);
|
|
DUMPREG(i, DISPC_OVL_BA1);
|
|
DUMPREG(i, DISPC_OVL_POSITION);
|
|
DUMPREG(i, DISPC_OVL_SIZE);
|
|
DUMPREG(i, DISPC_OVL_ATTRIBUTES);
|
|
DUMPREG(i, DISPC_OVL_FIFO_THRESHOLD);
|
|
DUMPREG(i, DISPC_OVL_FIFO_SIZE_STATUS);
|
|
DUMPREG(i, DISPC_OVL_ROW_INC);
|
|
DUMPREG(i, DISPC_OVL_PIXEL_INC);
|
|
|
|
if (dss_has_feature(FEAT_PRELOAD))
|
|
DUMPREG(i, DISPC_OVL_PRELOAD);
|
|
if (dss_has_feature(FEAT_MFLAG))
|
|
DUMPREG(i, DISPC_OVL_MFLAG_THRESHOLD);
|
|
|
|
if (i == OMAP_DSS_GFX) {
|
|
DUMPREG(i, DISPC_OVL_WINDOW_SKIP);
|
|
DUMPREG(i, DISPC_OVL_TABLE_BA);
|
|
continue;
|
|
}
|
|
|
|
DUMPREG(i, DISPC_OVL_FIR);
|
|
DUMPREG(i, DISPC_OVL_PICTURE_SIZE);
|
|
DUMPREG(i, DISPC_OVL_ACCU0);
|
|
DUMPREG(i, DISPC_OVL_ACCU1);
|
|
if (dss_has_feature(FEAT_HANDLE_UV_SEPARATE)) {
|
|
DUMPREG(i, DISPC_OVL_BA0_UV);
|
|
DUMPREG(i, DISPC_OVL_BA1_UV);
|
|
DUMPREG(i, DISPC_OVL_FIR2);
|
|
DUMPREG(i, DISPC_OVL_ACCU2_0);
|
|
DUMPREG(i, DISPC_OVL_ACCU2_1);
|
|
}
|
|
if (dss_has_feature(FEAT_ATTR2))
|
|
DUMPREG(i, DISPC_OVL_ATTRIBUTES2);
|
|
}
|
|
|
|
if (dispc.feat->has_writeback) {
|
|
i = OMAP_DSS_WB;
|
|
DUMPREG(i, DISPC_OVL_BA0);
|
|
DUMPREG(i, DISPC_OVL_BA1);
|
|
DUMPREG(i, DISPC_OVL_SIZE);
|
|
DUMPREG(i, DISPC_OVL_ATTRIBUTES);
|
|
DUMPREG(i, DISPC_OVL_FIFO_THRESHOLD);
|
|
DUMPREG(i, DISPC_OVL_FIFO_SIZE_STATUS);
|
|
DUMPREG(i, DISPC_OVL_ROW_INC);
|
|
DUMPREG(i, DISPC_OVL_PIXEL_INC);
|
|
|
|
if (dss_has_feature(FEAT_MFLAG))
|
|
DUMPREG(i, DISPC_OVL_MFLAG_THRESHOLD);
|
|
|
|
DUMPREG(i, DISPC_OVL_FIR);
|
|
DUMPREG(i, DISPC_OVL_PICTURE_SIZE);
|
|
DUMPREG(i, DISPC_OVL_ACCU0);
|
|
DUMPREG(i, DISPC_OVL_ACCU1);
|
|
if (dss_has_feature(FEAT_HANDLE_UV_SEPARATE)) {
|
|
DUMPREG(i, DISPC_OVL_BA0_UV);
|
|
DUMPREG(i, DISPC_OVL_BA1_UV);
|
|
DUMPREG(i, DISPC_OVL_FIR2);
|
|
DUMPREG(i, DISPC_OVL_ACCU2_0);
|
|
DUMPREG(i, DISPC_OVL_ACCU2_1);
|
|
}
|
|
if (dss_has_feature(FEAT_ATTR2))
|
|
DUMPREG(i, DISPC_OVL_ATTRIBUTES2);
|
|
}
|
|
|
|
#undef DISPC_REG
|
|
#undef DUMPREG
|
|
|
|
#define DISPC_REG(plane, name, i) name(plane, i)
|
|
#define DUMPREG(plane, name, i) \
|
|
seq_printf(s, "%s_%d(%s)%*s %08x\n", #name, i, p_names[plane], \
|
|
(int)(46 - strlen(#name) - strlen(p_names[plane])), " ", \
|
|
dispc_read_reg(DISPC_REG(plane, name, i)))
|
|
|
|
/* Video pipeline coefficient registers */
|
|
|
|
/* start from OMAP_DSS_VIDEO1 */
|
|
for (i = 1; i < dss_feat_get_num_ovls(); i++) {
|
|
for (j = 0; j < 8; j++)
|
|
DUMPREG(i, DISPC_OVL_FIR_COEF_H, j);
|
|
|
|
for (j = 0; j < 8; j++)
|
|
DUMPREG(i, DISPC_OVL_FIR_COEF_HV, j);
|
|
|
|
for (j = 0; j < 5; j++)
|
|
DUMPREG(i, DISPC_OVL_CONV_COEF, j);
|
|
|
|
if (dss_has_feature(FEAT_FIR_COEF_V)) {
|
|
for (j = 0; j < 8; j++)
|
|
DUMPREG(i, DISPC_OVL_FIR_COEF_V, j);
|
|
}
|
|
|
|
if (dss_has_feature(FEAT_HANDLE_UV_SEPARATE)) {
|
|
for (j = 0; j < 8; j++)
|
|
DUMPREG(i, DISPC_OVL_FIR_COEF_H2, j);
|
|
|
|
for (j = 0; j < 8; j++)
|
|
DUMPREG(i, DISPC_OVL_FIR_COEF_HV2, j);
|
|
|
|
for (j = 0; j < 8; j++)
|
|
DUMPREG(i, DISPC_OVL_FIR_COEF_V2, j);
|
|
}
|
|
}
|
|
|
|
dispc_runtime_put();
|
|
|
|
#undef DISPC_REG
|
|
#undef DUMPREG
|
|
}
|
|
|
|
/* calculate clock rates using dividers in cinfo */
|
|
int dispc_calc_clock_rates(unsigned long dispc_fclk_rate,
|
|
struct dispc_clock_info *cinfo)
|
|
{
|
|
if (cinfo->lck_div > 255 || cinfo->lck_div == 0)
|
|
return -EINVAL;
|
|
if (cinfo->pck_div < 1 || cinfo->pck_div > 255)
|
|
return -EINVAL;
|
|
|
|
cinfo->lck = dispc_fclk_rate / cinfo->lck_div;
|
|
cinfo->pck = cinfo->lck / cinfo->pck_div;
|
|
|
|
return 0;
|
|
}
|
|
|
|
bool dispc_div_calc(unsigned long dispc,
|
|
unsigned long pck_min, unsigned long pck_max,
|
|
dispc_div_calc_func func, void *data)
|
|
{
|
|
int lckd, lckd_start, lckd_stop;
|
|
int pckd, pckd_start, pckd_stop;
|
|
unsigned long pck, lck;
|
|
unsigned long lck_max;
|
|
unsigned long pckd_hw_min, pckd_hw_max;
|
|
unsigned min_fck_per_pck;
|
|
unsigned long fck;
|
|
|
|
#ifdef CONFIG_FB_OMAP2_DSS_MIN_FCK_PER_PCK
|
|
min_fck_per_pck = CONFIG_FB_OMAP2_DSS_MIN_FCK_PER_PCK;
|
|
#else
|
|
min_fck_per_pck = 0;
|
|
#endif
|
|
|
|
pckd_hw_min = dss_feat_get_param_min(FEAT_PARAM_DSS_PCD);
|
|
pckd_hw_max = dss_feat_get_param_max(FEAT_PARAM_DSS_PCD);
|
|
|
|
lck_max = dss_feat_get_param_max(FEAT_PARAM_DSS_FCK);
|
|
|
|
pck_min = pck_min ? pck_min : 1;
|
|
pck_max = pck_max ? pck_max : ULONG_MAX;
|
|
|
|
lckd_start = max(DIV_ROUND_UP(dispc, lck_max), 1ul);
|
|
lckd_stop = min(dispc / pck_min, 255ul);
|
|
|
|
for (lckd = lckd_start; lckd <= lckd_stop; ++lckd) {
|
|
lck = dispc / lckd;
|
|
|
|
pckd_start = max(DIV_ROUND_UP(lck, pck_max), pckd_hw_min);
|
|
pckd_stop = min(lck / pck_min, pckd_hw_max);
|
|
|
|
for (pckd = pckd_start; pckd <= pckd_stop; ++pckd) {
|
|
pck = lck / pckd;
|
|
|
|
/*
|
|
* For OMAP2/3 the DISPC fclk is the same as LCD's logic
|
|
* clock, which means we're configuring DISPC fclk here
|
|
* also. Thus we need to use the calculated lck. For
|
|
* OMAP4+ the DISPC fclk is a separate clock.
|
|
*/
|
|
if (dss_has_feature(FEAT_CORE_CLK_DIV))
|
|
fck = dispc_core_clk_rate();
|
|
else
|
|
fck = lck;
|
|
|
|
if (fck < pck * min_fck_per_pck)
|
|
continue;
|
|
|
|
if (func(lckd, pckd, lck, pck, data))
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
void dispc_mgr_set_clock_div(enum omap_channel channel,
|
|
const struct dispc_clock_info *cinfo)
|
|
{
|
|
DSSDBG("lck = %lu (%u)\n", cinfo->lck, cinfo->lck_div);
|
|
DSSDBG("pck = %lu (%u)\n", cinfo->pck, cinfo->pck_div);
|
|
|
|
dispc_mgr_set_lcd_divisor(channel, cinfo->lck_div, cinfo->pck_div);
|
|
}
|
|
|
|
int dispc_mgr_get_clock_div(enum omap_channel channel,
|
|
struct dispc_clock_info *cinfo)
|
|
{
|
|
unsigned long fck;
|
|
|
|
fck = dispc_fclk_rate();
|
|
|
|
cinfo->lck_div = REG_GET(DISPC_DIVISORo(channel), 23, 16);
|
|
cinfo->pck_div = REG_GET(DISPC_DIVISORo(channel), 7, 0);
|
|
|
|
cinfo->lck = fck / cinfo->lck_div;
|
|
cinfo->pck = cinfo->lck / cinfo->pck_div;
|
|
|
|
return 0;
|
|
}
|
|
|
|
u32 dispc_read_irqstatus(void)
|
|
{
|
|
return dispc_read_reg(DISPC_IRQSTATUS);
|
|
}
|
|
EXPORT_SYMBOL(dispc_read_irqstatus);
|
|
|
|
void dispc_clear_irqstatus(u32 mask)
|
|
{
|
|
dispc_write_reg(DISPC_IRQSTATUS, mask);
|
|
}
|
|
EXPORT_SYMBOL(dispc_clear_irqstatus);
|
|
|
|
u32 dispc_read_irqenable(void)
|
|
{
|
|
return dispc_read_reg(DISPC_IRQENABLE);
|
|
}
|
|
EXPORT_SYMBOL(dispc_read_irqenable);
|
|
|
|
void dispc_write_irqenable(u32 mask)
|
|
{
|
|
u32 old_mask = dispc_read_reg(DISPC_IRQENABLE);
|
|
|
|
/* clear the irqstatus for newly enabled irqs */
|
|
dispc_clear_irqstatus((mask ^ old_mask) & mask);
|
|
|
|
dispc_write_reg(DISPC_IRQENABLE, mask);
|
|
}
|
|
EXPORT_SYMBOL(dispc_write_irqenable);
|
|
|
|
void dispc_enable_sidle(void)
|
|
{
|
|
REG_FLD_MOD(DISPC_SYSCONFIG, 2, 4, 3); /* SIDLEMODE: smart idle */
|
|
}
|
|
|
|
void dispc_disable_sidle(void)
|
|
{
|
|
REG_FLD_MOD(DISPC_SYSCONFIG, 1, 4, 3); /* SIDLEMODE: no idle */
|
|
}
|
|
|
|
static void _omap_dispc_initial_config(void)
|
|
{
|
|
u32 l;
|
|
|
|
/* Exclusively enable DISPC_CORE_CLK and set divider to 1 */
|
|
if (dss_has_feature(FEAT_CORE_CLK_DIV)) {
|
|
l = dispc_read_reg(DISPC_DIVISOR);
|
|
/* Use DISPC_DIVISOR.LCD, instead of DISPC_DIVISOR1.LCD */
|
|
l = FLD_MOD(l, 1, 0, 0);
|
|
l = FLD_MOD(l, 1, 23, 16);
|
|
dispc_write_reg(DISPC_DIVISOR, l);
|
|
|
|
dispc.core_clk_rate = dispc_fclk_rate();
|
|
}
|
|
|
|
/* FUNCGATED */
|
|
if (dss_has_feature(FEAT_FUNCGATED))
|
|
REG_FLD_MOD(DISPC_CONFIG, 1, 9, 9);
|
|
|
|
dispc_setup_color_conv_coef();
|
|
|
|
dispc_set_loadmode(OMAP_DSS_LOAD_FRAME_ONLY);
|
|
|
|
dispc_init_fifos();
|
|
|
|
dispc_configure_burst_sizes();
|
|
|
|
dispc_ovl_enable_zorder_planes();
|
|
|
|
if (dispc.feat->mstandby_workaround)
|
|
REG_FLD_MOD(DISPC_MSTANDBY_CTRL, 1, 0, 0);
|
|
|
|
if (dss_has_feature(FEAT_MFLAG))
|
|
dispc_init_mflag();
|
|
}
|
|
|
|
static const struct dispc_features omap24xx_dispc_feats = {
|
|
.sw_start = 5,
|
|
.fp_start = 15,
|
|
.bp_start = 27,
|
|
.sw_max = 64,
|
|
.vp_max = 255,
|
|
.hp_max = 256,
|
|
.mgr_width_start = 10,
|
|
.mgr_height_start = 26,
|
|
.mgr_width_max = 2048,
|
|
.mgr_height_max = 2048,
|
|
.max_lcd_pclk = 66500000,
|
|
.calc_scaling = dispc_ovl_calc_scaling_24xx,
|
|
.calc_core_clk = calc_core_clk_24xx,
|
|
.num_fifos = 3,
|
|
.no_framedone_tv = true,
|
|
.set_max_preload = false,
|
|
.last_pixel_inc_missing = true,
|
|
};
|
|
|
|
static const struct dispc_features omap34xx_rev1_0_dispc_feats = {
|
|
.sw_start = 5,
|
|
.fp_start = 15,
|
|
.bp_start = 27,
|
|
.sw_max = 64,
|
|
.vp_max = 255,
|
|
.hp_max = 256,
|
|
.mgr_width_start = 10,
|
|
.mgr_height_start = 26,
|
|
.mgr_width_max = 2048,
|
|
.mgr_height_max = 2048,
|
|
.max_lcd_pclk = 173000000,
|
|
.max_tv_pclk = 59000000,
|
|
.calc_scaling = dispc_ovl_calc_scaling_34xx,
|
|
.calc_core_clk = calc_core_clk_34xx,
|
|
.num_fifos = 3,
|
|
.no_framedone_tv = true,
|
|
.set_max_preload = false,
|
|
.last_pixel_inc_missing = true,
|
|
};
|
|
|
|
static const struct dispc_features omap34xx_rev3_0_dispc_feats = {
|
|
.sw_start = 7,
|
|
.fp_start = 19,
|
|
.bp_start = 31,
|
|
.sw_max = 256,
|
|
.vp_max = 4095,
|
|
.hp_max = 4096,
|
|
.mgr_width_start = 10,
|
|
.mgr_height_start = 26,
|
|
.mgr_width_max = 2048,
|
|
.mgr_height_max = 2048,
|
|
.max_lcd_pclk = 173000000,
|
|
.max_tv_pclk = 59000000,
|
|
.calc_scaling = dispc_ovl_calc_scaling_34xx,
|
|
.calc_core_clk = calc_core_clk_34xx,
|
|
.num_fifos = 3,
|
|
.no_framedone_tv = true,
|
|
.set_max_preload = false,
|
|
.last_pixel_inc_missing = true,
|
|
};
|
|
|
|
static const struct dispc_features omap44xx_dispc_feats = {
|
|
.sw_start = 7,
|
|
.fp_start = 19,
|
|
.bp_start = 31,
|
|
.sw_max = 256,
|
|
.vp_max = 4095,
|
|
.hp_max = 4096,
|
|
.mgr_width_start = 10,
|
|
.mgr_height_start = 26,
|
|
.mgr_width_max = 2048,
|
|
.mgr_height_max = 2048,
|
|
.max_lcd_pclk = 170000000,
|
|
.max_tv_pclk = 185625000,
|
|
.calc_scaling = dispc_ovl_calc_scaling_44xx,
|
|
.calc_core_clk = calc_core_clk_44xx,
|
|
.num_fifos = 5,
|
|
.gfx_fifo_workaround = true,
|
|
.set_max_preload = true,
|
|
.supports_sync_align = true,
|
|
.has_writeback = true,
|
|
};
|
|
|
|
static const struct dispc_features omap54xx_dispc_feats = {
|
|
.sw_start = 7,
|
|
.fp_start = 19,
|
|
.bp_start = 31,
|
|
.sw_max = 256,
|
|
.vp_max = 4095,
|
|
.hp_max = 4096,
|
|
.mgr_width_start = 11,
|
|
.mgr_height_start = 27,
|
|
.mgr_width_max = 4096,
|
|
.mgr_height_max = 4096,
|
|
.max_lcd_pclk = 170000000,
|
|
.max_tv_pclk = 186000000,
|
|
.calc_scaling = dispc_ovl_calc_scaling_44xx,
|
|
.calc_core_clk = calc_core_clk_44xx,
|
|
.num_fifos = 5,
|
|
.gfx_fifo_workaround = true,
|
|
.mstandby_workaround = true,
|
|
.set_max_preload = true,
|
|
.supports_sync_align = true,
|
|
.has_writeback = true,
|
|
};
|
|
|
|
static const struct dispc_features *dispc_get_features(void)
|
|
{
|
|
switch (omapdss_get_version()) {
|
|
case OMAPDSS_VER_OMAP24xx:
|
|
return &omap24xx_dispc_feats;
|
|
|
|
case OMAPDSS_VER_OMAP34xx_ES1:
|
|
return &omap34xx_rev1_0_dispc_feats;
|
|
|
|
case OMAPDSS_VER_OMAP34xx_ES3:
|
|
case OMAPDSS_VER_OMAP3630:
|
|
case OMAPDSS_VER_AM35xx:
|
|
case OMAPDSS_VER_AM43xx:
|
|
return &omap34xx_rev3_0_dispc_feats;
|
|
|
|
case OMAPDSS_VER_OMAP4430_ES1:
|
|
case OMAPDSS_VER_OMAP4430_ES2:
|
|
case OMAPDSS_VER_OMAP4:
|
|
return &omap44xx_dispc_feats;
|
|
|
|
case OMAPDSS_VER_OMAP5:
|
|
case OMAPDSS_VER_DRA7xx:
|
|
return &omap54xx_dispc_feats;
|
|
|
|
default:
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
static irqreturn_t dispc_irq_handler(int irq, void *arg)
|
|
{
|
|
if (!dispc.is_enabled)
|
|
return IRQ_NONE;
|
|
|
|
return dispc.user_handler(irq, dispc.user_data);
|
|
}
|
|
|
|
int dispc_request_irq(irq_handler_t handler, void *dev_id)
|
|
{
|
|
int r;
|
|
|
|
if (dispc.user_handler != NULL)
|
|
return -EBUSY;
|
|
|
|
dispc.user_handler = handler;
|
|
dispc.user_data = dev_id;
|
|
|
|
/* ensure the dispc_irq_handler sees the values above */
|
|
smp_wmb();
|
|
|
|
r = devm_request_irq(&dispc.pdev->dev, dispc.irq, dispc_irq_handler,
|
|
IRQF_SHARED, "OMAP DISPC", &dispc);
|
|
if (r) {
|
|
dispc.user_handler = NULL;
|
|
dispc.user_data = NULL;
|
|
}
|
|
|
|
return r;
|
|
}
|
|
EXPORT_SYMBOL(dispc_request_irq);
|
|
|
|
void dispc_free_irq(void *dev_id)
|
|
{
|
|
devm_free_irq(&dispc.pdev->dev, dispc.irq, &dispc);
|
|
|
|
dispc.user_handler = NULL;
|
|
dispc.user_data = NULL;
|
|
}
|
|
EXPORT_SYMBOL(dispc_free_irq);
|
|
|
|
/* DISPC HW IP initialisation */
|
|
static int dispc_bind(struct device *dev, struct device *master, void *data)
|
|
{
|
|
struct platform_device *pdev = to_platform_device(dev);
|
|
u32 rev;
|
|
int r = 0;
|
|
struct resource *dispc_mem;
|
|
struct device_node *np = pdev->dev.of_node;
|
|
|
|
dispc.pdev = pdev;
|
|
|
|
spin_lock_init(&dispc.control_lock);
|
|
|
|
dispc.feat = dispc_get_features();
|
|
if (!dispc.feat)
|
|
return -ENODEV;
|
|
|
|
dispc_mem = platform_get_resource(dispc.pdev, IORESOURCE_MEM, 0);
|
|
if (!dispc_mem) {
|
|
DSSERR("can't get IORESOURCE_MEM DISPC\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
dispc.base = devm_ioremap(&pdev->dev, dispc_mem->start,
|
|
resource_size(dispc_mem));
|
|
if (!dispc.base) {
|
|
DSSERR("can't ioremap DISPC\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
dispc.irq = platform_get_irq(dispc.pdev, 0);
|
|
if (dispc.irq < 0) {
|
|
DSSERR("platform_get_irq failed\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
if (np && of_property_read_bool(np, "syscon-pol")) {
|
|
dispc.syscon_pol = syscon_regmap_lookup_by_phandle(np, "syscon-pol");
|
|
if (IS_ERR(dispc.syscon_pol)) {
|
|
dev_err(&pdev->dev, "failed to get syscon-pol regmap\n");
|
|
return PTR_ERR(dispc.syscon_pol);
|
|
}
|
|
|
|
if (of_property_read_u32_index(np, "syscon-pol", 1,
|
|
&dispc.syscon_pol_offset)) {
|
|
dev_err(&pdev->dev, "failed to get syscon-pol offset\n");
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
pm_runtime_enable(&pdev->dev);
|
|
|
|
r = dispc_runtime_get();
|
|
if (r)
|
|
goto err_runtime_get;
|
|
|
|
_omap_dispc_initial_config();
|
|
|
|
rev = dispc_read_reg(DISPC_REVISION);
|
|
dev_dbg(&pdev->dev, "OMAP DISPC rev %d.%d\n",
|
|
FLD_GET(rev, 7, 4), FLD_GET(rev, 3, 0));
|
|
|
|
dispc_runtime_put();
|
|
|
|
dss_init_overlay_managers();
|
|
|
|
dss_debugfs_create_file("dispc", dispc_dump_regs);
|
|
|
|
return 0;
|
|
|
|
err_runtime_get:
|
|
pm_runtime_disable(&pdev->dev);
|
|
return r;
|
|
}
|
|
|
|
static void dispc_unbind(struct device *dev, struct device *master,
|
|
void *data)
|
|
{
|
|
pm_runtime_disable(dev);
|
|
|
|
dss_uninit_overlay_managers();
|
|
}
|
|
|
|
static const struct component_ops dispc_component_ops = {
|
|
.bind = dispc_bind,
|
|
.unbind = dispc_unbind,
|
|
};
|
|
|
|
static int dispc_probe(struct platform_device *pdev)
|
|
{
|
|
return component_add(&pdev->dev, &dispc_component_ops);
|
|
}
|
|
|
|
static int dispc_remove(struct platform_device *pdev)
|
|
{
|
|
component_del(&pdev->dev, &dispc_component_ops);
|
|
return 0;
|
|
}
|
|
|
|
static int dispc_runtime_suspend(struct device *dev)
|
|
{
|
|
dispc.is_enabled = false;
|
|
/* ensure the dispc_irq_handler sees the is_enabled value */
|
|
smp_wmb();
|
|
/* wait for current handler to finish before turning the DISPC off */
|
|
synchronize_irq(dispc.irq);
|
|
|
|
dispc_save_context();
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int dispc_runtime_resume(struct device *dev)
|
|
{
|
|
/*
|
|
* The reset value for load mode is 0 (OMAP_DSS_LOAD_CLUT_AND_FRAME)
|
|
* but we always initialize it to 2 (OMAP_DSS_LOAD_FRAME_ONLY) in
|
|
* _omap_dispc_initial_config(). We can thus use it to detect if
|
|
* we have lost register context.
|
|
*/
|
|
if (REG_GET(DISPC_CONFIG, 2, 1) != OMAP_DSS_LOAD_FRAME_ONLY) {
|
|
_omap_dispc_initial_config();
|
|
|
|
dispc_restore_context();
|
|
}
|
|
|
|
dispc.is_enabled = true;
|
|
/* ensure the dispc_irq_handler sees the is_enabled value */
|
|
smp_wmb();
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct dev_pm_ops dispc_pm_ops = {
|
|
.runtime_suspend = dispc_runtime_suspend,
|
|
.runtime_resume = dispc_runtime_resume,
|
|
};
|
|
|
|
static const struct of_device_id dispc_of_match[] = {
|
|
{ .compatible = "ti,omap2-dispc", },
|
|
{ .compatible = "ti,omap3-dispc", },
|
|
{ .compatible = "ti,omap4-dispc", },
|
|
{ .compatible = "ti,omap5-dispc", },
|
|
{ .compatible = "ti,dra7-dispc", },
|
|
{},
|
|
};
|
|
|
|
static struct platform_driver omap_dispchw_driver = {
|
|
.probe = dispc_probe,
|
|
.remove = dispc_remove,
|
|
.driver = {
|
|
.name = "omapdss_dispc",
|
|
.pm = &dispc_pm_ops,
|
|
.of_match_table = dispc_of_match,
|
|
.suppress_bind_attrs = true,
|
|
},
|
|
};
|
|
|
|
int __init dispc_init_platform_driver(void)
|
|
{
|
|
return platform_driver_register(&omap_dispchw_driver);
|
|
}
|
|
|
|
void dispc_uninit_platform_driver(void)
|
|
{
|
|
platform_driver_unregister(&omap_dispchw_driver);
|
|
}
|