344 lines
10 KiB
C
344 lines
10 KiB
C
/*
|
|
* isph3a.c
|
|
*
|
|
* TI OMAP3 ISP - H3A module
|
|
*
|
|
* Copyright (C) 2010 Nokia Corporation
|
|
* Copyright (C) 2009 Texas Instruments, Inc.
|
|
*
|
|
* Contacts: David Cohen <dacohen@gmail.com>
|
|
* Laurent Pinchart <laurent.pinchart@ideasonboard.com>
|
|
* Sakari Ailus <sakari.ailus@iki.fi>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#include <linux/slab.h>
|
|
#include <linux/uaccess.h>
|
|
|
|
#include "isp.h"
|
|
#include "isph3a.h"
|
|
#include "ispstat.h"
|
|
|
|
/*
|
|
* h3a_aewb_update_regs - Helper function to update h3a registers.
|
|
*/
|
|
static void h3a_aewb_setup_regs(struct ispstat *aewb, void *priv)
|
|
{
|
|
struct omap3isp_h3a_aewb_config *conf = priv;
|
|
u32 pcr;
|
|
u32 win1;
|
|
u32 start;
|
|
u32 blk;
|
|
u32 subwin;
|
|
|
|
if (aewb->state == ISPSTAT_DISABLED)
|
|
return;
|
|
|
|
isp_reg_writel(aewb->isp, aewb->active_buf->dma_addr,
|
|
OMAP3_ISP_IOMEM_H3A, ISPH3A_AEWBUFST);
|
|
|
|
if (!aewb->update)
|
|
return;
|
|
|
|
/* Converting config metadata into reg values */
|
|
pcr = conf->saturation_limit << ISPH3A_PCR_AEW_AVE2LMT_SHIFT;
|
|
pcr |= !!conf->alaw_enable << ISPH3A_PCR_AEW_ALAW_EN_SHIFT;
|
|
|
|
win1 = ((conf->win_height >> 1) - 1) << ISPH3A_AEWWIN1_WINH_SHIFT;
|
|
win1 |= ((conf->win_width >> 1) - 1) << ISPH3A_AEWWIN1_WINW_SHIFT;
|
|
win1 |= (conf->ver_win_count - 1) << ISPH3A_AEWWIN1_WINVC_SHIFT;
|
|
win1 |= (conf->hor_win_count - 1) << ISPH3A_AEWWIN1_WINHC_SHIFT;
|
|
|
|
start = conf->hor_win_start << ISPH3A_AEWINSTART_WINSH_SHIFT;
|
|
start |= conf->ver_win_start << ISPH3A_AEWINSTART_WINSV_SHIFT;
|
|
|
|
blk = conf->blk_ver_win_start << ISPH3A_AEWINBLK_WINSV_SHIFT;
|
|
blk |= ((conf->blk_win_height >> 1) - 1) << ISPH3A_AEWINBLK_WINH_SHIFT;
|
|
|
|
subwin = ((conf->subsample_ver_inc >> 1) - 1) <<
|
|
ISPH3A_AEWSUBWIN_AEWINCV_SHIFT;
|
|
subwin |= ((conf->subsample_hor_inc >> 1) - 1) <<
|
|
ISPH3A_AEWSUBWIN_AEWINCH_SHIFT;
|
|
|
|
isp_reg_writel(aewb->isp, win1, OMAP3_ISP_IOMEM_H3A, ISPH3A_AEWWIN1);
|
|
isp_reg_writel(aewb->isp, start, OMAP3_ISP_IOMEM_H3A,
|
|
ISPH3A_AEWINSTART);
|
|
isp_reg_writel(aewb->isp, blk, OMAP3_ISP_IOMEM_H3A, ISPH3A_AEWINBLK);
|
|
isp_reg_writel(aewb->isp, subwin, OMAP3_ISP_IOMEM_H3A,
|
|
ISPH3A_AEWSUBWIN);
|
|
isp_reg_clr_set(aewb->isp, OMAP3_ISP_IOMEM_H3A, ISPH3A_PCR,
|
|
ISPH3A_PCR_AEW_MASK, pcr);
|
|
|
|
aewb->update = 0;
|
|
aewb->config_counter += aewb->inc_config;
|
|
aewb->inc_config = 0;
|
|
aewb->buf_size = conf->buf_size;
|
|
}
|
|
|
|
static void h3a_aewb_enable(struct ispstat *aewb, int enable)
|
|
{
|
|
if (enable) {
|
|
isp_reg_set(aewb->isp, OMAP3_ISP_IOMEM_H3A, ISPH3A_PCR,
|
|
ISPH3A_PCR_AEW_EN);
|
|
omap3isp_subclk_enable(aewb->isp, OMAP3_ISP_SUBCLK_AEWB);
|
|
} else {
|
|
isp_reg_clr(aewb->isp, OMAP3_ISP_IOMEM_H3A, ISPH3A_PCR,
|
|
ISPH3A_PCR_AEW_EN);
|
|
omap3isp_subclk_disable(aewb->isp, OMAP3_ISP_SUBCLK_AEWB);
|
|
}
|
|
}
|
|
|
|
static int h3a_aewb_busy(struct ispstat *aewb)
|
|
{
|
|
return isp_reg_readl(aewb->isp, OMAP3_ISP_IOMEM_H3A, ISPH3A_PCR)
|
|
& ISPH3A_PCR_BUSYAEAWB;
|
|
}
|
|
|
|
static u32 h3a_aewb_get_buf_size(struct omap3isp_h3a_aewb_config *conf)
|
|
{
|
|
/* Number of configured windows + extra row for black data */
|
|
u32 win_count = (conf->ver_win_count + 1) * conf->hor_win_count;
|
|
|
|
/*
|
|
* Unsaturated block counts for each 8 windows.
|
|
* 1 extra for the last (win_count % 8) windows if win_count is not
|
|
* divisible by 8.
|
|
*/
|
|
win_count += (win_count + 7) / 8;
|
|
|
|
return win_count * AEWB_PACKET_SIZE;
|
|
}
|
|
|
|
static int h3a_aewb_validate_params(struct ispstat *aewb, void *new_conf)
|
|
{
|
|
struct omap3isp_h3a_aewb_config *user_cfg = new_conf;
|
|
u32 buf_size;
|
|
|
|
if (unlikely(user_cfg->saturation_limit >
|
|
OMAP3ISP_AEWB_MAX_SATURATION_LIM))
|
|
return -EINVAL;
|
|
|
|
if (unlikely(user_cfg->win_height < OMAP3ISP_AEWB_MIN_WIN_H ||
|
|
user_cfg->win_height > OMAP3ISP_AEWB_MAX_WIN_H ||
|
|
user_cfg->win_height & 0x01))
|
|
return -EINVAL;
|
|
|
|
if (unlikely(user_cfg->win_width < OMAP3ISP_AEWB_MIN_WIN_W ||
|
|
user_cfg->win_width > OMAP3ISP_AEWB_MAX_WIN_W ||
|
|
user_cfg->win_width & 0x01))
|
|
return -EINVAL;
|
|
|
|
if (unlikely(user_cfg->ver_win_count < OMAP3ISP_AEWB_MIN_WINVC ||
|
|
user_cfg->ver_win_count > OMAP3ISP_AEWB_MAX_WINVC))
|
|
return -EINVAL;
|
|
|
|
if (unlikely(user_cfg->hor_win_count < OMAP3ISP_AEWB_MIN_WINHC ||
|
|
user_cfg->hor_win_count > OMAP3ISP_AEWB_MAX_WINHC))
|
|
return -EINVAL;
|
|
|
|
if (unlikely(user_cfg->ver_win_start > OMAP3ISP_AEWB_MAX_WINSTART))
|
|
return -EINVAL;
|
|
|
|
if (unlikely(user_cfg->hor_win_start > OMAP3ISP_AEWB_MAX_WINSTART))
|
|
return -EINVAL;
|
|
|
|
if (unlikely(user_cfg->blk_ver_win_start > OMAP3ISP_AEWB_MAX_WINSTART))
|
|
return -EINVAL;
|
|
|
|
if (unlikely(user_cfg->blk_win_height < OMAP3ISP_AEWB_MIN_WIN_H ||
|
|
user_cfg->blk_win_height > OMAP3ISP_AEWB_MAX_WIN_H ||
|
|
user_cfg->blk_win_height & 0x01))
|
|
return -EINVAL;
|
|
|
|
if (unlikely(user_cfg->subsample_ver_inc < OMAP3ISP_AEWB_MIN_SUB_INC ||
|
|
user_cfg->subsample_ver_inc > OMAP3ISP_AEWB_MAX_SUB_INC ||
|
|
user_cfg->subsample_ver_inc & 0x01))
|
|
return -EINVAL;
|
|
|
|
if (unlikely(user_cfg->subsample_hor_inc < OMAP3ISP_AEWB_MIN_SUB_INC ||
|
|
user_cfg->subsample_hor_inc > OMAP3ISP_AEWB_MAX_SUB_INC ||
|
|
user_cfg->subsample_hor_inc & 0x01))
|
|
return -EINVAL;
|
|
|
|
buf_size = h3a_aewb_get_buf_size(user_cfg);
|
|
if (buf_size > user_cfg->buf_size)
|
|
user_cfg->buf_size = buf_size;
|
|
else if (user_cfg->buf_size > OMAP3ISP_AEWB_MAX_BUF_SIZE)
|
|
user_cfg->buf_size = OMAP3ISP_AEWB_MAX_BUF_SIZE;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* h3a_aewb_set_params - Helper function to check & store user given params.
|
|
* @new_conf: Pointer to AE and AWB parameters struct.
|
|
*
|
|
* As most of them are busy-lock registers, need to wait until AEW_BUSY = 0 to
|
|
* program them during ISR.
|
|
*/
|
|
static void h3a_aewb_set_params(struct ispstat *aewb, void *new_conf)
|
|
{
|
|
struct omap3isp_h3a_aewb_config *user_cfg = new_conf;
|
|
struct omap3isp_h3a_aewb_config *cur_cfg = aewb->priv;
|
|
int update = 0;
|
|
|
|
if (cur_cfg->saturation_limit != user_cfg->saturation_limit) {
|
|
cur_cfg->saturation_limit = user_cfg->saturation_limit;
|
|
update = 1;
|
|
}
|
|
if (cur_cfg->alaw_enable != user_cfg->alaw_enable) {
|
|
cur_cfg->alaw_enable = user_cfg->alaw_enable;
|
|
update = 1;
|
|
}
|
|
if (cur_cfg->win_height != user_cfg->win_height) {
|
|
cur_cfg->win_height = user_cfg->win_height;
|
|
update = 1;
|
|
}
|
|
if (cur_cfg->win_width != user_cfg->win_width) {
|
|
cur_cfg->win_width = user_cfg->win_width;
|
|
update = 1;
|
|
}
|
|
if (cur_cfg->ver_win_count != user_cfg->ver_win_count) {
|
|
cur_cfg->ver_win_count = user_cfg->ver_win_count;
|
|
update = 1;
|
|
}
|
|
if (cur_cfg->hor_win_count != user_cfg->hor_win_count) {
|
|
cur_cfg->hor_win_count = user_cfg->hor_win_count;
|
|
update = 1;
|
|
}
|
|
if (cur_cfg->ver_win_start != user_cfg->ver_win_start) {
|
|
cur_cfg->ver_win_start = user_cfg->ver_win_start;
|
|
update = 1;
|
|
}
|
|
if (cur_cfg->hor_win_start != user_cfg->hor_win_start) {
|
|
cur_cfg->hor_win_start = user_cfg->hor_win_start;
|
|
update = 1;
|
|
}
|
|
if (cur_cfg->blk_ver_win_start != user_cfg->blk_ver_win_start) {
|
|
cur_cfg->blk_ver_win_start = user_cfg->blk_ver_win_start;
|
|
update = 1;
|
|
}
|
|
if (cur_cfg->blk_win_height != user_cfg->blk_win_height) {
|
|
cur_cfg->blk_win_height = user_cfg->blk_win_height;
|
|
update = 1;
|
|
}
|
|
if (cur_cfg->subsample_ver_inc != user_cfg->subsample_ver_inc) {
|
|
cur_cfg->subsample_ver_inc = user_cfg->subsample_ver_inc;
|
|
update = 1;
|
|
}
|
|
if (cur_cfg->subsample_hor_inc != user_cfg->subsample_hor_inc) {
|
|
cur_cfg->subsample_hor_inc = user_cfg->subsample_hor_inc;
|
|
update = 1;
|
|
}
|
|
|
|
if (update || !aewb->configured) {
|
|
aewb->inc_config++;
|
|
aewb->update = 1;
|
|
cur_cfg->buf_size = h3a_aewb_get_buf_size(cur_cfg);
|
|
}
|
|
}
|
|
|
|
static long h3a_aewb_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
|
|
{
|
|
struct ispstat *stat = v4l2_get_subdevdata(sd);
|
|
|
|
switch (cmd) {
|
|
case VIDIOC_OMAP3ISP_AEWB_CFG:
|
|
return omap3isp_stat_config(stat, arg);
|
|
case VIDIOC_OMAP3ISP_STAT_REQ:
|
|
return omap3isp_stat_request_statistics(stat, arg);
|
|
case VIDIOC_OMAP3ISP_STAT_REQ_TIME32:
|
|
return omap3isp_stat_request_statistics_time32(stat, arg);
|
|
case VIDIOC_OMAP3ISP_STAT_EN: {
|
|
unsigned long *en = arg;
|
|
return omap3isp_stat_enable(stat, !!*en);
|
|
}
|
|
}
|
|
|
|
return -ENOIOCTLCMD;
|
|
}
|
|
|
|
static const struct ispstat_ops h3a_aewb_ops = {
|
|
.validate_params = h3a_aewb_validate_params,
|
|
.set_params = h3a_aewb_set_params,
|
|
.setup_regs = h3a_aewb_setup_regs,
|
|
.enable = h3a_aewb_enable,
|
|
.busy = h3a_aewb_busy,
|
|
};
|
|
|
|
static const struct v4l2_subdev_core_ops h3a_aewb_subdev_core_ops = {
|
|
.ioctl = h3a_aewb_ioctl,
|
|
.subscribe_event = omap3isp_stat_subscribe_event,
|
|
.unsubscribe_event = omap3isp_stat_unsubscribe_event,
|
|
};
|
|
|
|
static const struct v4l2_subdev_video_ops h3a_aewb_subdev_video_ops = {
|
|
.s_stream = omap3isp_stat_s_stream,
|
|
};
|
|
|
|
static const struct v4l2_subdev_ops h3a_aewb_subdev_ops = {
|
|
.core = &h3a_aewb_subdev_core_ops,
|
|
.video = &h3a_aewb_subdev_video_ops,
|
|
};
|
|
|
|
/*
|
|
* omap3isp_h3a_aewb_init - Module Initialisation.
|
|
*/
|
|
int omap3isp_h3a_aewb_init(struct isp_device *isp)
|
|
{
|
|
struct ispstat *aewb = &isp->isp_aewb;
|
|
struct omap3isp_h3a_aewb_config *aewb_cfg;
|
|
struct omap3isp_h3a_aewb_config *aewb_recover_cfg;
|
|
|
|
aewb_cfg = devm_kzalloc(isp->dev, sizeof(*aewb_cfg), GFP_KERNEL);
|
|
if (!aewb_cfg)
|
|
return -ENOMEM;
|
|
|
|
aewb->ops = &h3a_aewb_ops;
|
|
aewb->priv = aewb_cfg;
|
|
aewb->event_type = V4L2_EVENT_OMAP3ISP_AEWB;
|
|
aewb->isp = isp;
|
|
|
|
/* Set recover state configuration */
|
|
aewb_recover_cfg = devm_kzalloc(isp->dev, sizeof(*aewb_recover_cfg),
|
|
GFP_KERNEL);
|
|
if (!aewb_recover_cfg) {
|
|
dev_err(aewb->isp->dev,
|
|
"AEWB: cannot allocate memory for recover configuration.\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
aewb_recover_cfg->saturation_limit = OMAP3ISP_AEWB_MAX_SATURATION_LIM;
|
|
aewb_recover_cfg->win_height = OMAP3ISP_AEWB_MIN_WIN_H;
|
|
aewb_recover_cfg->win_width = OMAP3ISP_AEWB_MIN_WIN_W;
|
|
aewb_recover_cfg->ver_win_count = OMAP3ISP_AEWB_MIN_WINVC;
|
|
aewb_recover_cfg->hor_win_count = OMAP3ISP_AEWB_MIN_WINHC;
|
|
aewb_recover_cfg->blk_ver_win_start = aewb_recover_cfg->ver_win_start +
|
|
aewb_recover_cfg->win_height * aewb_recover_cfg->ver_win_count;
|
|
aewb_recover_cfg->blk_win_height = OMAP3ISP_AEWB_MIN_WIN_H;
|
|
aewb_recover_cfg->subsample_ver_inc = OMAP3ISP_AEWB_MIN_SUB_INC;
|
|
aewb_recover_cfg->subsample_hor_inc = OMAP3ISP_AEWB_MIN_SUB_INC;
|
|
|
|
if (h3a_aewb_validate_params(aewb, aewb_recover_cfg)) {
|
|
dev_err(aewb->isp->dev,
|
|
"AEWB: recover configuration is invalid.\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
aewb_recover_cfg->buf_size = h3a_aewb_get_buf_size(aewb_recover_cfg);
|
|
aewb->recover_priv = aewb_recover_cfg;
|
|
|
|
return omap3isp_stat_init(aewb, "AEWB", &h3a_aewb_subdev_ops);
|
|
}
|
|
|
|
/*
|
|
* omap3isp_h3a_aewb_cleanup - Module exit.
|
|
*/
|
|
void omap3isp_h3a_aewb_cleanup(struct isp_device *isp)
|
|
{
|
|
omap3isp_stat_cleanup(&isp->isp_aewb);
|
|
}
|