1837 lines
48 KiB
C
1837 lines
48 KiB
C
/*
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* Motion Eye video4linux driver for Sony Vaio PictureBook
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*
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* Copyright (C) 2001-2004 Stelian Pop <stelian@popies.net>
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*
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* Copyright (C) 2001-2002 Alcôve <www.alcove.com>
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*
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* Copyright (C) 2000 Andrew Tridgell <tridge@valinux.com>
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*
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* Earlier work by Werner Almesberger, Paul `Rusty' Russell and Paul Mackerras.
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*
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* Some parts borrowed from various video4linux drivers, especially
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* bttv-driver.c and zoran.c, see original files for credits.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/module.h>
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#include <linux/pci.h>
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#include <linux/sched.h>
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#include <linux/init.h>
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#include <linux/gfp.h>
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#include <linux/videodev2.h>
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#include <media/v4l2-common.h>
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#include <media/v4l2-device.h>
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#include <media/v4l2-ioctl.h>
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#include <media/v4l2-fh.h>
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#include <media/v4l2-event.h>
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#include <linux/uaccess.h>
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#include <asm/io.h>
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#include <linux/delay.h>
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#include <linux/interrupt.h>
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#include <linux/vmalloc.h>
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#include <linux/dma-mapping.h>
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#include "meye.h"
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#include <linux/meye.h>
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MODULE_AUTHOR("Stelian Pop <stelian@popies.net>");
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MODULE_DESCRIPTION("v4l2 driver for the MotionEye camera");
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MODULE_LICENSE("GPL");
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MODULE_VERSION(MEYE_DRIVER_VERSION);
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/* number of grab buffers */
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static unsigned int gbuffers = 2;
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module_param(gbuffers, int, 0444);
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MODULE_PARM_DESC(gbuffers, "number of capture buffers, default is 2 (32 max)");
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/* size of a grab buffer */
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static unsigned int gbufsize = MEYE_MAX_BUFSIZE;
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module_param(gbufsize, int, 0444);
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MODULE_PARM_DESC(gbufsize, "size of the capture buffers, default is 614400 (will be rounded up to a page multiple)");
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/* /dev/videoX registration number */
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static int video_nr = -1;
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module_param(video_nr, int, 0444);
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MODULE_PARM_DESC(video_nr, "video device to register (0=/dev/video0, etc)");
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/* driver structure - only one possible */
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static struct meye meye;
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/****************************************************************************/
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/* Memory allocation routines (stolen from bttv-driver.c) */
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/****************************************************************************/
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static void *rvmalloc(unsigned long size)
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{
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void *mem;
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unsigned long adr;
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size = PAGE_ALIGN(size);
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mem = vmalloc_32(size);
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if (mem) {
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memset(mem, 0, size);
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adr = (unsigned long) mem;
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while (size > 0) {
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SetPageReserved(vmalloc_to_page((void *)adr));
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adr += PAGE_SIZE;
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size -= PAGE_SIZE;
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}
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}
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return mem;
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}
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static void rvfree(void * mem, unsigned long size)
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{
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unsigned long adr;
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if (mem) {
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adr = (unsigned long) mem;
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while ((long) size > 0) {
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ClearPageReserved(vmalloc_to_page((void *)adr));
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adr += PAGE_SIZE;
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size -= PAGE_SIZE;
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}
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vfree(mem);
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}
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}
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/*
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* return a page table pointing to N pages of locked memory
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*
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* NOTE: The meye device expects DMA addresses on 32 bits, we build
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* a table of 1024 entries = 4 bytes * 1024 = 4096 bytes.
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*/
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static int ptable_alloc(void)
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{
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u32 *pt;
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int i;
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memset(meye.mchip_ptable, 0, sizeof(meye.mchip_ptable));
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/* give only 32 bit DMA addresses */
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if (dma_set_mask(&meye.mchip_dev->dev, DMA_BIT_MASK(32)))
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return -1;
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meye.mchip_ptable_toc = dma_alloc_coherent(&meye.mchip_dev->dev,
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PAGE_SIZE,
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&meye.mchip_dmahandle,
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GFP_KERNEL);
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if (!meye.mchip_ptable_toc) {
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meye.mchip_dmahandle = 0;
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return -1;
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}
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pt = meye.mchip_ptable_toc;
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for (i = 0; i < MCHIP_NB_PAGES; i++) {
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dma_addr_t dma;
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meye.mchip_ptable[i] = dma_alloc_coherent(&meye.mchip_dev->dev,
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PAGE_SIZE,
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&dma,
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GFP_KERNEL);
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if (!meye.mchip_ptable[i]) {
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int j;
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pt = meye.mchip_ptable_toc;
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for (j = 0; j < i; ++j) {
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dma = (dma_addr_t) *pt;
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dma_free_coherent(&meye.mchip_dev->dev,
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PAGE_SIZE,
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meye.mchip_ptable[j], dma);
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pt++;
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}
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dma_free_coherent(&meye.mchip_dev->dev,
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PAGE_SIZE,
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meye.mchip_ptable_toc,
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meye.mchip_dmahandle);
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meye.mchip_ptable_toc = NULL;
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meye.mchip_dmahandle = 0;
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return -1;
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}
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*pt = (u32) dma;
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pt++;
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}
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return 0;
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}
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static void ptable_free(void)
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{
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u32 *pt;
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int i;
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pt = meye.mchip_ptable_toc;
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for (i = 0; i < MCHIP_NB_PAGES; i++) {
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dma_addr_t dma = (dma_addr_t) *pt;
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if (meye.mchip_ptable[i])
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dma_free_coherent(&meye.mchip_dev->dev,
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PAGE_SIZE,
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meye.mchip_ptable[i], dma);
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pt++;
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}
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if (meye.mchip_ptable_toc)
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dma_free_coherent(&meye.mchip_dev->dev,
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PAGE_SIZE,
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meye.mchip_ptable_toc,
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meye.mchip_dmahandle);
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memset(meye.mchip_ptable, 0, sizeof(meye.mchip_ptable));
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meye.mchip_ptable_toc = NULL;
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meye.mchip_dmahandle = 0;
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}
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/* copy data from ptable into buf */
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static void ptable_copy(u8 *buf, int start, int size, int pt_pages)
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{
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int i;
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for (i = 0; i < (size / PAGE_SIZE) * PAGE_SIZE; i += PAGE_SIZE) {
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memcpy(buf + i, meye.mchip_ptable[start++], PAGE_SIZE);
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if (start >= pt_pages)
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start = 0;
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}
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memcpy(buf + i, meye.mchip_ptable[start], size % PAGE_SIZE);
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}
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/****************************************************************************/
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/* JPEG tables at different qualities to load into the VRJ chip */
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/****************************************************************************/
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/* return a set of quantisation tables based on a quality from 1 to 10 */
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static u16 *jpeg_quantisation_tables(int *length, int quality)
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{
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static u16 jpeg_tables[][70] = { {
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0xdbff, 0x4300, 0xff00, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
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0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
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0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
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0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
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0xffff, 0xffff, 0xffff,
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0xdbff, 0x4300, 0xff01, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
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0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
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0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
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0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
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0xffff, 0xffff, 0xffff,
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},
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{
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0xdbff, 0x4300, 0x5000, 0x3c37, 0x3c46, 0x5032, 0x4146, 0x5a46,
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0x5055, 0x785f, 0x82c8, 0x6e78, 0x786e, 0xaff5, 0x91b9, 0xffc8,
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0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
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0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
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0xffff, 0xffff, 0xffff,
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0xdbff, 0x4300, 0x5501, 0x5a5a, 0x6978, 0xeb78, 0x8282, 0xffeb,
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0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
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0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
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0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
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0xffff, 0xffff, 0xffff,
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},
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{
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0xdbff, 0x4300, 0x2800, 0x1e1c, 0x1e23, 0x2819, 0x2123, 0x2d23,
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0x282b, 0x3c30, 0x4164, 0x373c, 0x3c37, 0x587b, 0x495d, 0x9164,
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0x9980, 0x8f96, 0x8c80, 0xa08a, 0xe6b4, 0xa0c3, 0xdaaa, 0x8aad,
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0xc88c, 0xcbff, 0xeeda, 0xfff5, 0xffff, 0xc19b, 0xffff, 0xfaff,
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0xe6ff, 0xfffd, 0xfff8,
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0xdbff, 0x4300, 0x2b01, 0x2d2d, 0x353c, 0x763c, 0x4141, 0xf876,
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0x8ca5, 0xf8a5, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8,
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0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8,
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0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8,
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0xf8f8, 0xf8f8, 0xfff8,
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},
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{
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0xdbff, 0x4300, 0x1b00, 0x1412, 0x1417, 0x1b11, 0x1617, 0x1e17,
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0x1b1c, 0x2820, 0x2b42, 0x2528, 0x2825, 0x3a51, 0x303d, 0x6042,
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0x6555, 0x5f64, 0x5d55, 0x6a5b, 0x9978, 0x6a81, 0x9071, 0x5b73,
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0x855d, 0x86b5, 0x9e90, 0xaba3, 0xabad, 0x8067, 0xc9bc, 0xa6ba,
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0x99c7, 0xaba8, 0xffa4,
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0xdbff, 0x4300, 0x1c01, 0x1e1e, 0x2328, 0x4e28, 0x2b2b, 0xa44e,
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0x5d6e, 0xa46e, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4,
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0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4,
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0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4,
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0xa4a4, 0xa4a4, 0xffa4,
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},
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{
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0xdbff, 0x4300, 0x1400, 0x0f0e, 0x0f12, 0x140d, 0x1012, 0x1712,
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0x1415, 0x1e18, 0x2132, 0x1c1e, 0x1e1c, 0x2c3d, 0x242e, 0x4932,
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0x4c40, 0x474b, 0x4640, 0x5045, 0x735a, 0x5062, 0x6d55, 0x4556,
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0x6446, 0x6588, 0x776d, 0x817b, 0x8182, 0x604e, 0x978d, 0x7d8c,
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0x7396, 0x817e, 0xff7c,
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0xdbff, 0x4300, 0x1501, 0x1717, 0x1a1e, 0x3b1e, 0x2121, 0x7c3b,
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0x4653, 0x7c53, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c,
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0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c,
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0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c,
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0x7c7c, 0x7c7c, 0xff7c,
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},
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{
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0xdbff, 0x4300, 0x1000, 0x0c0b, 0x0c0e, 0x100a, 0x0d0e, 0x120e,
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0x1011, 0x1813, 0x1a28, 0x1618, 0x1816, 0x2331, 0x1d25, 0x3a28,
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0x3d33, 0x393c, 0x3833, 0x4037, 0x5c48, 0x404e, 0x5744, 0x3745,
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0x5038, 0x516d, 0x5f57, 0x6762, 0x6768, 0x4d3e, 0x7971, 0x6470,
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0x5c78, 0x6765, 0xff63,
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0xdbff, 0x4300, 0x1101, 0x1212, 0x1518, 0x2f18, 0x1a1a, 0x632f,
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0x3842, 0x6342, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363,
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0x6363, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363,
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0x6363, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363,
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0x6363, 0x6363, 0xff63,
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},
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{
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0xdbff, 0x4300, 0x0d00, 0x0a09, 0x0a0b, 0x0d08, 0x0a0b, 0x0e0b,
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0x0d0e, 0x130f, 0x1520, 0x1213, 0x1312, 0x1c27, 0x171e, 0x2e20,
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0x3129, 0x2e30, 0x2d29, 0x332c, 0x4a3a, 0x333e, 0x4636, 0x2c37,
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0x402d, 0x4157, 0x4c46, 0x524e, 0x5253, 0x3e32, 0x615a, 0x505a,
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0x4a60, 0x5251, 0xff4f,
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0xdbff, 0x4300, 0x0e01, 0x0e0e, 0x1113, 0x2613, 0x1515, 0x4f26,
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0x2d35, 0x4f35, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f,
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0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f,
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0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f,
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0x4f4f, 0x4f4f, 0xff4f,
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},
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{
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0xdbff, 0x4300, 0x0a00, 0x0707, 0x0708, 0x0a06, 0x0808, 0x0b08,
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0x0a0a, 0x0e0b, 0x1018, 0x0d0e, 0x0e0d, 0x151d, 0x1116, 0x2318,
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0x251f, 0x2224, 0x221f, 0x2621, 0x372b, 0x262f, 0x3429, 0x2129,
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0x3022, 0x3141, 0x3934, 0x3e3b, 0x3e3e, 0x2e25, 0x4944, 0x3c43,
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|
0x3748, 0x3e3d, 0xff3b,
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0xdbff, 0x4300, 0x0a01, 0x0b0b, 0x0d0e, 0x1c0e, 0x1010, 0x3b1c,
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|
0x2228, 0x3b28, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b,
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0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b,
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0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b,
|
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0x3b3b, 0x3b3b, 0xff3b,
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|
},
|
|
{
|
|
0xdbff, 0x4300, 0x0600, 0x0504, 0x0506, 0x0604, 0x0506, 0x0706,
|
|
0x0607, 0x0a08, 0x0a10, 0x090a, 0x0a09, 0x0e14, 0x0c0f, 0x1710,
|
|
0x1814, 0x1718, 0x1614, 0x1a16, 0x251d, 0x1a1f, 0x231b, 0x161c,
|
|
0x2016, 0x202c, 0x2623, 0x2927, 0x292a, 0x1f19, 0x302d, 0x282d,
|
|
0x2530, 0x2928, 0xff28,
|
|
0xdbff, 0x4300, 0x0701, 0x0707, 0x080a, 0x130a, 0x0a0a, 0x2813,
|
|
0x161a, 0x281a, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828,
|
|
0x2828, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828,
|
|
0x2828, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828,
|
|
0x2828, 0x2828, 0xff28,
|
|
},
|
|
{
|
|
0xdbff, 0x4300, 0x0300, 0x0202, 0x0203, 0x0302, 0x0303, 0x0403,
|
|
0x0303, 0x0504, 0x0508, 0x0405, 0x0504, 0x070a, 0x0607, 0x0c08,
|
|
0x0c0a, 0x0b0c, 0x0b0a, 0x0d0b, 0x120e, 0x0d10, 0x110e, 0x0b0e,
|
|
0x100b, 0x1016, 0x1311, 0x1514, 0x1515, 0x0f0c, 0x1817, 0x1416,
|
|
0x1218, 0x1514, 0xff14,
|
|
0xdbff, 0x4300, 0x0301, 0x0404, 0x0405, 0x0905, 0x0505, 0x1409,
|
|
0x0b0d, 0x140d, 0x1414, 0x1414, 0x1414, 0x1414, 0x1414, 0x1414,
|
|
0x1414, 0x1414, 0x1414, 0x1414, 0x1414, 0x1414, 0x1414, 0x1414,
|
|
0x1414, 0x1414, 0x1414, 0x1414, 0x1414, 0x1414, 0x1414, 0x1414,
|
|
0x1414, 0x1414, 0xff14,
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|
},
|
|
{
|
|
0xdbff, 0x4300, 0x0100, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101,
|
|
0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101,
|
|
0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101,
|
|
0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101,
|
|
0x0101, 0x0101, 0xff01,
|
|
0xdbff, 0x4300, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101,
|
|
0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101,
|
|
0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101,
|
|
0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101,
|
|
0x0101, 0x0101, 0xff01,
|
|
} };
|
|
|
|
if (quality < 0 || quality > 10) {
|
|
printk(KERN_WARNING
|
|
"meye: invalid quality level %d - using 8\n", quality);
|
|
quality = 8;
|
|
}
|
|
|
|
*length = ARRAY_SIZE(jpeg_tables[quality]);
|
|
return jpeg_tables[quality];
|
|
}
|
|
|
|
/* return a generic set of huffman tables */
|
|
static u16 *jpeg_huffman_tables(int *length)
|
|
{
|
|
static u16 tables[] = {
|
|
0xC4FF, 0xB500, 0x0010, 0x0102, 0x0303, 0x0402, 0x0503, 0x0405,
|
|
0x0004, 0x0100, 0x017D, 0x0302, 0x0400, 0x0511, 0x2112, 0x4131,
|
|
0x1306, 0x6151, 0x2207, 0x1471, 0x8132, 0xA191, 0x2308, 0xB142,
|
|
0x15C1, 0xD152, 0x24F0, 0x6233, 0x8272, 0x0A09, 0x1716, 0x1918,
|
|
0x251A, 0x2726, 0x2928, 0x342A, 0x3635, 0x3837, 0x3A39, 0x4443,
|
|
0x4645, 0x4847, 0x4A49, 0x5453, 0x5655, 0x5857, 0x5A59, 0x6463,
|
|
0x6665, 0x6867, 0x6A69, 0x7473, 0x7675, 0x7877, 0x7A79, 0x8483,
|
|
0x8685, 0x8887, 0x8A89, 0x9392, 0x9594, 0x9796, 0x9998, 0xA29A,
|
|
0xA4A3, 0xA6A5, 0xA8A7, 0xAAA9, 0xB3B2, 0xB5B4, 0xB7B6, 0xB9B8,
|
|
0xC2BA, 0xC4C3, 0xC6C5, 0xC8C7, 0xCAC9, 0xD3D2, 0xD5D4, 0xD7D6,
|
|
0xD9D8, 0xE1DA, 0xE3E2, 0xE5E4, 0xE7E6, 0xE9E8, 0xF1EA, 0xF3F2,
|
|
0xF5F4, 0xF7F6, 0xF9F8, 0xFFFA,
|
|
0xC4FF, 0xB500, 0x0011, 0x0102, 0x0402, 0x0304, 0x0704, 0x0405,
|
|
0x0004, 0x0201, 0x0077, 0x0201, 0x1103, 0x0504, 0x3121, 0x1206,
|
|
0x5141, 0x6107, 0x1371, 0x3222, 0x0881, 0x4214, 0xA191, 0xC1B1,
|
|
0x2309, 0x5233, 0x15F0, 0x7262, 0x0AD1, 0x2416, 0xE134, 0xF125,
|
|
0x1817, 0x1A19, 0x2726, 0x2928, 0x352A, 0x3736, 0x3938, 0x433A,
|
|
0x4544, 0x4746, 0x4948, 0x534A, 0x5554, 0x5756, 0x5958, 0x635A,
|
|
0x6564, 0x6766, 0x6968, 0x736A, 0x7574, 0x7776, 0x7978, 0x827A,
|
|
0x8483, 0x8685, 0x8887, 0x8A89, 0x9392, 0x9594, 0x9796, 0x9998,
|
|
0xA29A, 0xA4A3, 0xA6A5, 0xA8A7, 0xAAA9, 0xB3B2, 0xB5B4, 0xB7B6,
|
|
0xB9B8, 0xC2BA, 0xC4C3, 0xC6C5, 0xC8C7, 0xCAC9, 0xD3D2, 0xD5D4,
|
|
0xD7D6, 0xD9D8, 0xE2DA, 0xE4E3, 0xE6E5, 0xE8E7, 0xEAE9, 0xF3F2,
|
|
0xF5F4, 0xF7F6, 0xF9F8, 0xFFFA,
|
|
0xC4FF, 0x1F00, 0x0000, 0x0501, 0x0101, 0x0101, 0x0101, 0x0000,
|
|
0x0000, 0x0000, 0x0000, 0x0201, 0x0403, 0x0605, 0x0807, 0x0A09,
|
|
0xFF0B,
|
|
0xC4FF, 0x1F00, 0x0001, 0x0103, 0x0101, 0x0101, 0x0101, 0x0101,
|
|
0x0000, 0x0000, 0x0000, 0x0201, 0x0403, 0x0605, 0x0807, 0x0A09,
|
|
0xFF0B
|
|
};
|
|
|
|
*length = ARRAY_SIZE(tables);
|
|
return tables;
|
|
}
|
|
|
|
/****************************************************************************/
|
|
/* MCHIP low-level functions */
|
|
/****************************************************************************/
|
|
|
|
/* returns the horizontal capture size */
|
|
static inline int mchip_hsize(void)
|
|
{
|
|
return meye.params.subsample ? 320 : 640;
|
|
}
|
|
|
|
/* returns the vertical capture size */
|
|
static inline int mchip_vsize(void)
|
|
{
|
|
return meye.params.subsample ? 240 : 480;
|
|
}
|
|
|
|
/* waits for a register to be available */
|
|
static void mchip_sync(int reg)
|
|
{
|
|
u32 status;
|
|
int i;
|
|
|
|
if (reg == MCHIP_MM_FIFO_DATA) {
|
|
for (i = 0; i < MCHIP_REG_TIMEOUT; i++) {
|
|
status = readl(meye.mchip_mmregs +
|
|
MCHIP_MM_FIFO_STATUS);
|
|
if (!(status & MCHIP_MM_FIFO_WAIT)) {
|
|
printk(KERN_WARNING "meye: fifo not ready\n");
|
|
return;
|
|
}
|
|
if (status & MCHIP_MM_FIFO_READY)
|
|
return;
|
|
udelay(1);
|
|
}
|
|
} else if (reg > 0x80) {
|
|
u32 mask = (reg < 0x100) ? MCHIP_HIC_STATUS_MCC_RDY
|
|
: MCHIP_HIC_STATUS_VRJ_RDY;
|
|
for (i = 0; i < MCHIP_REG_TIMEOUT; i++) {
|
|
status = readl(meye.mchip_mmregs + MCHIP_HIC_STATUS);
|
|
if (status & mask)
|
|
return;
|
|
udelay(1);
|
|
}
|
|
} else
|
|
return;
|
|
printk(KERN_WARNING
|
|
"meye: mchip_sync() timeout on reg 0x%x status=0x%x\n",
|
|
reg, status);
|
|
}
|
|
|
|
/* sets a value into the register */
|
|
static inline void mchip_set(int reg, u32 v)
|
|
{
|
|
mchip_sync(reg);
|
|
writel(v, meye.mchip_mmregs + reg);
|
|
}
|
|
|
|
/* get the register value */
|
|
static inline u32 mchip_read(int reg)
|
|
{
|
|
mchip_sync(reg);
|
|
return readl(meye.mchip_mmregs + reg);
|
|
}
|
|
|
|
/* wait for a register to become a particular value */
|
|
static inline int mchip_delay(u32 reg, u32 v)
|
|
{
|
|
int n = 10;
|
|
while (--n && mchip_read(reg) != v)
|
|
udelay(1);
|
|
return n;
|
|
}
|
|
|
|
/* setup subsampling */
|
|
static void mchip_subsample(void)
|
|
{
|
|
mchip_set(MCHIP_MCC_R_SAMPLING, meye.params.subsample);
|
|
mchip_set(MCHIP_MCC_R_XRANGE, mchip_hsize());
|
|
mchip_set(MCHIP_MCC_R_YRANGE, mchip_vsize());
|
|
mchip_set(MCHIP_MCC_B_XRANGE, mchip_hsize());
|
|
mchip_set(MCHIP_MCC_B_YRANGE, mchip_vsize());
|
|
mchip_delay(MCHIP_HIC_STATUS, MCHIP_HIC_STATUS_IDLE);
|
|
}
|
|
|
|
/* set the framerate into the mchip */
|
|
static void mchip_set_framerate(void)
|
|
{
|
|
mchip_set(MCHIP_HIC_S_RATE, meye.params.framerate);
|
|
}
|
|
|
|
/* load some huffman and quantisation tables into the VRJ chip ready
|
|
for JPEG compression */
|
|
static void mchip_load_tables(void)
|
|
{
|
|
int i;
|
|
int length;
|
|
u16 *tables;
|
|
|
|
tables = jpeg_huffman_tables(&length);
|
|
for (i = 0; i < length; i++)
|
|
writel(tables[i], meye.mchip_mmregs + MCHIP_VRJ_TABLE_DATA);
|
|
|
|
tables = jpeg_quantisation_tables(&length, meye.params.quality);
|
|
for (i = 0; i < length; i++)
|
|
writel(tables[i], meye.mchip_mmregs + MCHIP_VRJ_TABLE_DATA);
|
|
}
|
|
|
|
/* setup the VRJ parameters in the chip */
|
|
static void mchip_vrj_setup(u8 mode)
|
|
{
|
|
mchip_set(MCHIP_VRJ_BUS_MODE, 5);
|
|
mchip_set(MCHIP_VRJ_SIGNAL_ACTIVE_LEVEL, 0x1f);
|
|
mchip_set(MCHIP_VRJ_PDAT_USE, 1);
|
|
mchip_set(MCHIP_VRJ_IRQ_FLAG, 0xa0);
|
|
mchip_set(MCHIP_VRJ_MODE_SPECIFY, mode);
|
|
mchip_set(MCHIP_VRJ_NUM_LINES, mchip_vsize());
|
|
mchip_set(MCHIP_VRJ_NUM_PIXELS, mchip_hsize());
|
|
mchip_set(MCHIP_VRJ_NUM_COMPONENTS, 0x1b);
|
|
mchip_set(MCHIP_VRJ_LIMIT_COMPRESSED_LO, 0xFFFF);
|
|
mchip_set(MCHIP_VRJ_LIMIT_COMPRESSED_HI, 0xFFFF);
|
|
mchip_set(MCHIP_VRJ_COMP_DATA_FORMAT, 0xC);
|
|
mchip_set(MCHIP_VRJ_RESTART_INTERVAL, 0);
|
|
mchip_set(MCHIP_VRJ_SOF1, 0x601);
|
|
mchip_set(MCHIP_VRJ_SOF2, 0x1502);
|
|
mchip_set(MCHIP_VRJ_SOF3, 0x1503);
|
|
mchip_set(MCHIP_VRJ_SOF4, 0x1596);
|
|
mchip_set(MCHIP_VRJ_SOS, 0x0ed0);
|
|
|
|
mchip_load_tables();
|
|
}
|
|
|
|
/* sets the DMA parameters into the chip */
|
|
static void mchip_dma_setup(dma_addr_t dma_addr)
|
|
{
|
|
int i;
|
|
|
|
mchip_set(MCHIP_MM_PT_ADDR, (u32)dma_addr);
|
|
for (i = 0; i < 4; i++)
|
|
mchip_set(MCHIP_MM_FIR(i), 0);
|
|
meye.mchip_fnum = 0;
|
|
}
|
|
|
|
/* setup for DMA transfers - also zeros the framebuffer */
|
|
static int mchip_dma_alloc(void)
|
|
{
|
|
if (!meye.mchip_dmahandle)
|
|
if (ptable_alloc())
|
|
return -1;
|
|
return 0;
|
|
}
|
|
|
|
/* frees the DMA buffer */
|
|
static void mchip_dma_free(void)
|
|
{
|
|
if (meye.mchip_dmahandle) {
|
|
mchip_dma_setup(0);
|
|
ptable_free();
|
|
}
|
|
}
|
|
|
|
/* stop any existing HIC action and wait for any dma to complete then
|
|
reset the dma engine */
|
|
static void mchip_hic_stop(void)
|
|
{
|
|
int i, j;
|
|
|
|
meye.mchip_mode = MCHIP_HIC_MODE_NOOP;
|
|
if (!(mchip_read(MCHIP_HIC_STATUS) & MCHIP_HIC_STATUS_BUSY))
|
|
return;
|
|
for (i = 0; i < 20; ++i) {
|
|
mchip_set(MCHIP_HIC_CMD, MCHIP_HIC_CMD_STOP);
|
|
mchip_delay(MCHIP_HIC_CMD, 0);
|
|
for (j = 0; j < 100; ++j) {
|
|
if (mchip_delay(MCHIP_HIC_STATUS,
|
|
MCHIP_HIC_STATUS_IDLE))
|
|
return;
|
|
msleep(1);
|
|
}
|
|
printk(KERN_ERR "meye: need to reset HIC!\n");
|
|
|
|
mchip_set(MCHIP_HIC_CTL, MCHIP_HIC_CTL_SOFT_RESET);
|
|
msleep(250);
|
|
}
|
|
printk(KERN_ERR "meye: resetting HIC hanged!\n");
|
|
}
|
|
|
|
/****************************************************************************/
|
|
/* MCHIP frame processing functions */
|
|
/****************************************************************************/
|
|
|
|
/* get the next ready frame from the dma engine */
|
|
static u32 mchip_get_frame(void)
|
|
{
|
|
return mchip_read(MCHIP_MM_FIR(meye.mchip_fnum));
|
|
}
|
|
|
|
/* frees the current frame from the dma engine */
|
|
static void mchip_free_frame(void)
|
|
{
|
|
mchip_set(MCHIP_MM_FIR(meye.mchip_fnum), 0);
|
|
meye.mchip_fnum++;
|
|
meye.mchip_fnum %= 4;
|
|
}
|
|
|
|
/* read one frame from the framebuffer assuming it was captured using
|
|
a uncompressed transfer */
|
|
static void mchip_cont_read_frame(u32 v, u8 *buf, int size)
|
|
{
|
|
int pt_id;
|
|
|
|
pt_id = (v >> 17) & 0x3FF;
|
|
|
|
ptable_copy(buf, pt_id, size, MCHIP_NB_PAGES);
|
|
}
|
|
|
|
/* read a compressed frame from the framebuffer */
|
|
static int mchip_comp_read_frame(u32 v, u8 *buf, int size)
|
|
{
|
|
int pt_start, pt_end, trailer;
|
|
int fsize;
|
|
int i;
|
|
|
|
pt_start = (v >> 19) & 0xFF;
|
|
pt_end = (v >> 11) & 0xFF;
|
|
trailer = (v >> 1) & 0x3FF;
|
|
|
|
if (pt_end < pt_start)
|
|
fsize = (MCHIP_NB_PAGES_MJPEG - pt_start) * PAGE_SIZE +
|
|
pt_end * PAGE_SIZE + trailer * 4;
|
|
else
|
|
fsize = (pt_end - pt_start) * PAGE_SIZE + trailer * 4;
|
|
|
|
if (fsize > size) {
|
|
printk(KERN_WARNING "meye: oversized compressed frame %d\n",
|
|
fsize);
|
|
return -1;
|
|
}
|
|
|
|
ptable_copy(buf, pt_start, fsize, MCHIP_NB_PAGES_MJPEG);
|
|
|
|
#ifdef MEYE_JPEG_CORRECTION
|
|
|
|
/* Some mchip generated jpeg frames are incorrect. In most
|
|
* (all ?) of those cases, the final EOI (0xff 0xd9) marker
|
|
* is not present at the end of the frame.
|
|
*
|
|
* Since adding the final marker is not enough to restore
|
|
* the jpeg integrity, we drop the frame.
|
|
*/
|
|
|
|
for (i = fsize - 1; i > 0 && buf[i] == 0xff; i--) ;
|
|
|
|
if (i < 2 || buf[i - 1] != 0xff || buf[i] != 0xd9)
|
|
return -1;
|
|
|
|
#endif
|
|
|
|
return fsize;
|
|
}
|
|
|
|
/* take a picture into SDRAM */
|
|
static void mchip_take_picture(void)
|
|
{
|
|
int i;
|
|
|
|
mchip_hic_stop();
|
|
mchip_subsample();
|
|
mchip_dma_setup(meye.mchip_dmahandle);
|
|
|
|
mchip_set(MCHIP_HIC_MODE, MCHIP_HIC_MODE_STILL_CAP);
|
|
mchip_set(MCHIP_HIC_CMD, MCHIP_HIC_CMD_START);
|
|
|
|
mchip_delay(MCHIP_HIC_CMD, 0);
|
|
|
|
for (i = 0; i < 100; ++i) {
|
|
if (mchip_delay(MCHIP_HIC_STATUS, MCHIP_HIC_STATUS_IDLE))
|
|
break;
|
|
msleep(1);
|
|
}
|
|
}
|
|
|
|
/* dma a previously taken picture into a buffer */
|
|
static void mchip_get_picture(u8 *buf, int bufsize)
|
|
{
|
|
u32 v;
|
|
int i;
|
|
|
|
mchip_set(MCHIP_HIC_MODE, MCHIP_HIC_MODE_STILL_OUT);
|
|
mchip_set(MCHIP_HIC_CMD, MCHIP_HIC_CMD_START);
|
|
|
|
mchip_delay(MCHIP_HIC_CMD, 0);
|
|
for (i = 0; i < 100; ++i) {
|
|
if (mchip_delay(MCHIP_HIC_STATUS, MCHIP_HIC_STATUS_IDLE))
|
|
break;
|
|
msleep(1);
|
|
}
|
|
for (i = 0; i < 4; ++i) {
|
|
v = mchip_get_frame();
|
|
if (v & MCHIP_MM_FIR_RDY) {
|
|
mchip_cont_read_frame(v, buf, bufsize);
|
|
break;
|
|
}
|
|
mchip_free_frame();
|
|
}
|
|
}
|
|
|
|
/* start continuous dma capture */
|
|
static void mchip_continuous_start(void)
|
|
{
|
|
mchip_hic_stop();
|
|
mchip_subsample();
|
|
mchip_set_framerate();
|
|
mchip_dma_setup(meye.mchip_dmahandle);
|
|
|
|
meye.mchip_mode = MCHIP_HIC_MODE_CONT_OUT;
|
|
|
|
mchip_set(MCHIP_HIC_MODE, MCHIP_HIC_MODE_CONT_OUT);
|
|
mchip_set(MCHIP_HIC_CMD, MCHIP_HIC_CMD_START);
|
|
|
|
mchip_delay(MCHIP_HIC_CMD, 0);
|
|
}
|
|
|
|
/* compress one frame into a buffer */
|
|
static int mchip_compress_frame(u8 *buf, int bufsize)
|
|
{
|
|
u32 v;
|
|
int len = -1, i;
|
|
|
|
mchip_vrj_setup(0x3f);
|
|
udelay(50);
|
|
|
|
mchip_set(MCHIP_HIC_MODE, MCHIP_HIC_MODE_STILL_COMP);
|
|
mchip_set(MCHIP_HIC_CMD, MCHIP_HIC_CMD_START);
|
|
|
|
mchip_delay(MCHIP_HIC_CMD, 0);
|
|
for (i = 0; i < 100; ++i) {
|
|
if (mchip_delay(MCHIP_HIC_STATUS, MCHIP_HIC_STATUS_IDLE))
|
|
break;
|
|
msleep(1);
|
|
}
|
|
|
|
for (i = 0; i < 4; ++i) {
|
|
v = mchip_get_frame();
|
|
if (v & MCHIP_MM_FIR_RDY) {
|
|
len = mchip_comp_read_frame(v, buf, bufsize);
|
|
break;
|
|
}
|
|
mchip_free_frame();
|
|
}
|
|
return len;
|
|
}
|
|
|
|
#if 0
|
|
/* uncompress one image into a buffer */
|
|
static int mchip_uncompress_frame(u8 *img, int imgsize, u8 *buf, int bufsize)
|
|
{
|
|
mchip_vrj_setup(0x3f);
|
|
udelay(50);
|
|
|
|
mchip_set(MCHIP_HIC_MODE, MCHIP_HIC_MODE_STILL_DECOMP);
|
|
mchip_set(MCHIP_HIC_CMD, MCHIP_HIC_CMD_START);
|
|
|
|
mchip_delay(MCHIP_HIC_CMD, 0);
|
|
|
|
return mchip_comp_read_frame(buf, bufsize);
|
|
}
|
|
#endif
|
|
|
|
/* start continuous compressed capture */
|
|
static void mchip_cont_compression_start(void)
|
|
{
|
|
mchip_hic_stop();
|
|
mchip_vrj_setup(0x3f);
|
|
mchip_subsample();
|
|
mchip_set_framerate();
|
|
mchip_dma_setup(meye.mchip_dmahandle);
|
|
|
|
meye.mchip_mode = MCHIP_HIC_MODE_CONT_COMP;
|
|
|
|
mchip_set(MCHIP_HIC_MODE, MCHIP_HIC_MODE_CONT_COMP);
|
|
mchip_set(MCHIP_HIC_CMD, MCHIP_HIC_CMD_START);
|
|
|
|
mchip_delay(MCHIP_HIC_CMD, 0);
|
|
}
|
|
|
|
/****************************************************************************/
|
|
/* Interrupt handling */
|
|
/****************************************************************************/
|
|
|
|
static irqreturn_t meye_irq(int irq, void *dev_id)
|
|
{
|
|
u32 v;
|
|
int reqnr;
|
|
static int sequence;
|
|
|
|
v = mchip_read(MCHIP_MM_INTA);
|
|
|
|
if (meye.mchip_mode != MCHIP_HIC_MODE_CONT_OUT &&
|
|
meye.mchip_mode != MCHIP_HIC_MODE_CONT_COMP)
|
|
return IRQ_NONE;
|
|
|
|
again:
|
|
v = mchip_get_frame();
|
|
if (!(v & MCHIP_MM_FIR_RDY))
|
|
return IRQ_HANDLED;
|
|
|
|
if (meye.mchip_mode == MCHIP_HIC_MODE_CONT_OUT) {
|
|
if (kfifo_out_locked(&meye.grabq, (unsigned char *)&reqnr,
|
|
sizeof(int), &meye.grabq_lock) != sizeof(int)) {
|
|
mchip_free_frame();
|
|
return IRQ_HANDLED;
|
|
}
|
|
mchip_cont_read_frame(v, meye.grab_fbuffer + gbufsize * reqnr,
|
|
mchip_hsize() * mchip_vsize() * 2);
|
|
meye.grab_buffer[reqnr].size = mchip_hsize() * mchip_vsize() * 2;
|
|
meye.grab_buffer[reqnr].state = MEYE_BUF_DONE;
|
|
v4l2_get_timestamp(&meye.grab_buffer[reqnr].timestamp);
|
|
meye.grab_buffer[reqnr].sequence = sequence++;
|
|
kfifo_in_locked(&meye.doneq, (unsigned char *)&reqnr,
|
|
sizeof(int), &meye.doneq_lock);
|
|
wake_up_interruptible(&meye.proc_list);
|
|
} else {
|
|
int size;
|
|
size = mchip_comp_read_frame(v, meye.grab_temp, gbufsize);
|
|
if (size == -1) {
|
|
mchip_free_frame();
|
|
goto again;
|
|
}
|
|
if (kfifo_out_locked(&meye.grabq, (unsigned char *)&reqnr,
|
|
sizeof(int), &meye.grabq_lock) != sizeof(int)) {
|
|
mchip_free_frame();
|
|
goto again;
|
|
}
|
|
memcpy(meye.grab_fbuffer + gbufsize * reqnr, meye.grab_temp,
|
|
size);
|
|
meye.grab_buffer[reqnr].size = size;
|
|
meye.grab_buffer[reqnr].state = MEYE_BUF_DONE;
|
|
v4l2_get_timestamp(&meye.grab_buffer[reqnr].timestamp);
|
|
meye.grab_buffer[reqnr].sequence = sequence++;
|
|
kfifo_in_locked(&meye.doneq, (unsigned char *)&reqnr,
|
|
sizeof(int), &meye.doneq_lock);
|
|
wake_up_interruptible(&meye.proc_list);
|
|
}
|
|
mchip_free_frame();
|
|
goto again;
|
|
}
|
|
|
|
/****************************************************************************/
|
|
/* video4linux integration */
|
|
/****************************************************************************/
|
|
|
|
static int meye_open(struct file *file)
|
|
{
|
|
int i;
|
|
|
|
if (test_and_set_bit(0, &meye.in_use))
|
|
return -EBUSY;
|
|
|
|
mchip_hic_stop();
|
|
|
|
if (mchip_dma_alloc()) {
|
|
printk(KERN_ERR "meye: mchip framebuffer allocation failed\n");
|
|
clear_bit(0, &meye.in_use);
|
|
return -ENOBUFS;
|
|
}
|
|
|
|
for (i = 0; i < MEYE_MAX_BUFNBRS; i++)
|
|
meye.grab_buffer[i].state = MEYE_BUF_UNUSED;
|
|
kfifo_reset(&meye.grabq);
|
|
kfifo_reset(&meye.doneq);
|
|
return v4l2_fh_open(file);
|
|
}
|
|
|
|
static int meye_release(struct file *file)
|
|
{
|
|
mchip_hic_stop();
|
|
mchip_dma_free();
|
|
clear_bit(0, &meye.in_use);
|
|
return v4l2_fh_release(file);
|
|
}
|
|
|
|
static int meyeioc_g_params(struct meye_params *p)
|
|
{
|
|
*p = meye.params;
|
|
return 0;
|
|
}
|
|
|
|
static int meyeioc_s_params(struct meye_params *jp)
|
|
{
|
|
if (jp->subsample > 1)
|
|
return -EINVAL;
|
|
|
|
if (jp->quality > 10)
|
|
return -EINVAL;
|
|
|
|
if (jp->sharpness > 63 || jp->agc > 63 || jp->picture > 63)
|
|
return -EINVAL;
|
|
|
|
if (jp->framerate > 31)
|
|
return -EINVAL;
|
|
|
|
mutex_lock(&meye.lock);
|
|
|
|
if (meye.params.subsample != jp->subsample ||
|
|
meye.params.quality != jp->quality)
|
|
mchip_hic_stop(); /* need restart */
|
|
|
|
meye.params = *jp;
|
|
sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERASHARPNESS,
|
|
meye.params.sharpness);
|
|
sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERAAGC,
|
|
meye.params.agc);
|
|
sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERAPICTURE,
|
|
meye.params.picture);
|
|
mutex_unlock(&meye.lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int meyeioc_qbuf_capt(int *nb)
|
|
{
|
|
if (!meye.grab_fbuffer)
|
|
return -EINVAL;
|
|
|
|
if (*nb >= gbuffers)
|
|
return -EINVAL;
|
|
|
|
if (*nb < 0) {
|
|
/* stop capture */
|
|
mchip_hic_stop();
|
|
return 0;
|
|
}
|
|
|
|
if (meye.grab_buffer[*nb].state != MEYE_BUF_UNUSED)
|
|
return -EBUSY;
|
|
|
|
mutex_lock(&meye.lock);
|
|
|
|
if (meye.mchip_mode != MCHIP_HIC_MODE_CONT_COMP)
|
|
mchip_cont_compression_start();
|
|
|
|
meye.grab_buffer[*nb].state = MEYE_BUF_USING;
|
|
kfifo_in_locked(&meye.grabq, (unsigned char *)nb, sizeof(int),
|
|
&meye.grabq_lock);
|
|
mutex_unlock(&meye.lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int meyeioc_sync(struct file *file, void *fh, int *i)
|
|
{
|
|
int unused;
|
|
|
|
if (*i < 0 || *i >= gbuffers)
|
|
return -EINVAL;
|
|
|
|
mutex_lock(&meye.lock);
|
|
switch (meye.grab_buffer[*i].state) {
|
|
|
|
case MEYE_BUF_UNUSED:
|
|
mutex_unlock(&meye.lock);
|
|
return -EINVAL;
|
|
case MEYE_BUF_USING:
|
|
if (file->f_flags & O_NONBLOCK) {
|
|
mutex_unlock(&meye.lock);
|
|
return -EAGAIN;
|
|
}
|
|
if (wait_event_interruptible(meye.proc_list,
|
|
(meye.grab_buffer[*i].state != MEYE_BUF_USING))) {
|
|
mutex_unlock(&meye.lock);
|
|
return -EINTR;
|
|
}
|
|
/* fall through */
|
|
case MEYE_BUF_DONE:
|
|
meye.grab_buffer[*i].state = MEYE_BUF_UNUSED;
|
|
if (kfifo_out_locked(&meye.doneq, (unsigned char *)&unused,
|
|
sizeof(int), &meye.doneq_lock) != sizeof(int))
|
|
break;
|
|
}
|
|
*i = meye.grab_buffer[*i].size;
|
|
mutex_unlock(&meye.lock);
|
|
return 0;
|
|
}
|
|
|
|
static int meyeioc_stillcapt(void)
|
|
{
|
|
if (!meye.grab_fbuffer)
|
|
return -EINVAL;
|
|
|
|
if (meye.grab_buffer[0].state != MEYE_BUF_UNUSED)
|
|
return -EBUSY;
|
|
|
|
mutex_lock(&meye.lock);
|
|
meye.grab_buffer[0].state = MEYE_BUF_USING;
|
|
mchip_take_picture();
|
|
|
|
mchip_get_picture(meye.grab_fbuffer,
|
|
mchip_hsize() * mchip_vsize() * 2);
|
|
|
|
meye.grab_buffer[0].state = MEYE_BUF_DONE;
|
|
mutex_unlock(&meye.lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int meyeioc_stilljcapt(int *len)
|
|
{
|
|
if (!meye.grab_fbuffer)
|
|
return -EINVAL;
|
|
|
|
if (meye.grab_buffer[0].state != MEYE_BUF_UNUSED)
|
|
return -EBUSY;
|
|
|
|
mutex_lock(&meye.lock);
|
|
meye.grab_buffer[0].state = MEYE_BUF_USING;
|
|
*len = -1;
|
|
|
|
while (*len == -1) {
|
|
mchip_take_picture();
|
|
*len = mchip_compress_frame(meye.grab_fbuffer, gbufsize);
|
|
}
|
|
|
|
meye.grab_buffer[0].state = MEYE_BUF_DONE;
|
|
mutex_unlock(&meye.lock);
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_querycap(struct file *file, void *fh,
|
|
struct v4l2_capability *cap)
|
|
{
|
|
strcpy(cap->driver, "meye");
|
|
strcpy(cap->card, "meye");
|
|
sprintf(cap->bus_info, "PCI:%s", pci_name(meye.mchip_dev));
|
|
|
|
cap->device_caps = V4L2_CAP_VIDEO_CAPTURE |
|
|
V4L2_CAP_STREAMING;
|
|
cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_enum_input(struct file *file, void *fh, struct v4l2_input *i)
|
|
{
|
|
if (i->index != 0)
|
|
return -EINVAL;
|
|
|
|
strcpy(i->name, "Camera");
|
|
i->type = V4L2_INPUT_TYPE_CAMERA;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_g_input(struct file *file, void *fh, unsigned int *i)
|
|
{
|
|
*i = 0;
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_s_input(struct file *file, void *fh, unsigned int i)
|
|
{
|
|
if (i != 0)
|
|
return -EINVAL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int meye_s_ctrl(struct v4l2_ctrl *ctrl)
|
|
{
|
|
mutex_lock(&meye.lock);
|
|
switch (ctrl->id) {
|
|
case V4L2_CID_BRIGHTNESS:
|
|
sony_pic_camera_command(
|
|
SONY_PIC_COMMAND_SETCAMERABRIGHTNESS, ctrl->val);
|
|
meye.brightness = ctrl->val << 10;
|
|
break;
|
|
case V4L2_CID_HUE:
|
|
sony_pic_camera_command(
|
|
SONY_PIC_COMMAND_SETCAMERAHUE, ctrl->val);
|
|
meye.hue = ctrl->val << 10;
|
|
break;
|
|
case V4L2_CID_CONTRAST:
|
|
sony_pic_camera_command(
|
|
SONY_PIC_COMMAND_SETCAMERACONTRAST, ctrl->val);
|
|
meye.contrast = ctrl->val << 10;
|
|
break;
|
|
case V4L2_CID_SATURATION:
|
|
sony_pic_camera_command(
|
|
SONY_PIC_COMMAND_SETCAMERACOLOR, ctrl->val);
|
|
meye.colour = ctrl->val << 10;
|
|
break;
|
|
case V4L2_CID_MEYE_AGC:
|
|
sony_pic_camera_command(
|
|
SONY_PIC_COMMAND_SETCAMERAAGC, ctrl->val);
|
|
meye.params.agc = ctrl->val;
|
|
break;
|
|
case V4L2_CID_SHARPNESS:
|
|
sony_pic_camera_command(
|
|
SONY_PIC_COMMAND_SETCAMERASHARPNESS, ctrl->val);
|
|
meye.params.sharpness = ctrl->val;
|
|
break;
|
|
case V4L2_CID_MEYE_PICTURE:
|
|
sony_pic_camera_command(
|
|
SONY_PIC_COMMAND_SETCAMERAPICTURE, ctrl->val);
|
|
meye.params.picture = ctrl->val;
|
|
break;
|
|
case V4L2_CID_JPEG_COMPRESSION_QUALITY:
|
|
meye.params.quality = ctrl->val;
|
|
break;
|
|
case V4L2_CID_MEYE_FRAMERATE:
|
|
meye.params.framerate = ctrl->val;
|
|
break;
|
|
default:
|
|
mutex_unlock(&meye.lock);
|
|
return -EINVAL;
|
|
}
|
|
mutex_unlock(&meye.lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_enum_fmt_vid_cap(struct file *file, void *fh,
|
|
struct v4l2_fmtdesc *f)
|
|
{
|
|
if (f->index > 1)
|
|
return -EINVAL;
|
|
|
|
if (f->index == 0) {
|
|
/* standard YUV 422 capture */
|
|
f->flags = 0;
|
|
strcpy(f->description, "YUV422");
|
|
f->pixelformat = V4L2_PIX_FMT_YUYV;
|
|
} else {
|
|
/* compressed MJPEG capture */
|
|
f->flags = V4L2_FMT_FLAG_COMPRESSED;
|
|
strcpy(f->description, "MJPEG");
|
|
f->pixelformat = V4L2_PIX_FMT_MJPEG;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_try_fmt_vid_cap(struct file *file, void *fh,
|
|
struct v4l2_format *f)
|
|
{
|
|
if (f->fmt.pix.pixelformat != V4L2_PIX_FMT_YUYV &&
|
|
f->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG)
|
|
return -EINVAL;
|
|
|
|
if (f->fmt.pix.field != V4L2_FIELD_ANY &&
|
|
f->fmt.pix.field != V4L2_FIELD_NONE)
|
|
return -EINVAL;
|
|
|
|
f->fmt.pix.field = V4L2_FIELD_NONE;
|
|
|
|
if (f->fmt.pix.width <= 320) {
|
|
f->fmt.pix.width = 320;
|
|
f->fmt.pix.height = 240;
|
|
} else {
|
|
f->fmt.pix.width = 640;
|
|
f->fmt.pix.height = 480;
|
|
}
|
|
|
|
f->fmt.pix.bytesperline = f->fmt.pix.width * 2;
|
|
f->fmt.pix.sizeimage = f->fmt.pix.height *
|
|
f->fmt.pix.bytesperline;
|
|
f->fmt.pix.colorspace = 0;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_g_fmt_vid_cap(struct file *file, void *fh,
|
|
struct v4l2_format *f)
|
|
{
|
|
switch (meye.mchip_mode) {
|
|
case MCHIP_HIC_MODE_CONT_OUT:
|
|
default:
|
|
f->fmt.pix.pixelformat = V4L2_PIX_FMT_YUYV;
|
|
break;
|
|
case MCHIP_HIC_MODE_CONT_COMP:
|
|
f->fmt.pix.pixelformat = V4L2_PIX_FMT_MJPEG;
|
|
break;
|
|
}
|
|
|
|
f->fmt.pix.field = V4L2_FIELD_NONE;
|
|
f->fmt.pix.width = mchip_hsize();
|
|
f->fmt.pix.height = mchip_vsize();
|
|
f->fmt.pix.bytesperline = f->fmt.pix.width * 2;
|
|
f->fmt.pix.sizeimage = f->fmt.pix.height *
|
|
f->fmt.pix.bytesperline;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_s_fmt_vid_cap(struct file *file, void *fh,
|
|
struct v4l2_format *f)
|
|
{
|
|
if (f->fmt.pix.pixelformat != V4L2_PIX_FMT_YUYV &&
|
|
f->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG)
|
|
return -EINVAL;
|
|
|
|
if (f->fmt.pix.field != V4L2_FIELD_ANY &&
|
|
f->fmt.pix.field != V4L2_FIELD_NONE)
|
|
return -EINVAL;
|
|
|
|
f->fmt.pix.field = V4L2_FIELD_NONE;
|
|
mutex_lock(&meye.lock);
|
|
|
|
if (f->fmt.pix.width <= 320) {
|
|
f->fmt.pix.width = 320;
|
|
f->fmt.pix.height = 240;
|
|
meye.params.subsample = 1;
|
|
} else {
|
|
f->fmt.pix.width = 640;
|
|
f->fmt.pix.height = 480;
|
|
meye.params.subsample = 0;
|
|
}
|
|
|
|
switch (f->fmt.pix.pixelformat) {
|
|
case V4L2_PIX_FMT_YUYV:
|
|
meye.mchip_mode = MCHIP_HIC_MODE_CONT_OUT;
|
|
break;
|
|
case V4L2_PIX_FMT_MJPEG:
|
|
meye.mchip_mode = MCHIP_HIC_MODE_CONT_COMP;
|
|
break;
|
|
}
|
|
|
|
mutex_unlock(&meye.lock);
|
|
f->fmt.pix.bytesperline = f->fmt.pix.width * 2;
|
|
f->fmt.pix.sizeimage = f->fmt.pix.height *
|
|
f->fmt.pix.bytesperline;
|
|
f->fmt.pix.colorspace = 0;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_reqbufs(struct file *file, void *fh,
|
|
struct v4l2_requestbuffers *req)
|
|
{
|
|
int i;
|
|
|
|
if (req->memory != V4L2_MEMORY_MMAP)
|
|
return -EINVAL;
|
|
|
|
if (meye.grab_fbuffer && req->count == gbuffers) {
|
|
/* already allocated, no modifications */
|
|
return 0;
|
|
}
|
|
|
|
mutex_lock(&meye.lock);
|
|
if (meye.grab_fbuffer) {
|
|
for (i = 0; i < gbuffers; i++)
|
|
if (meye.vma_use_count[i]) {
|
|
mutex_unlock(&meye.lock);
|
|
return -EINVAL;
|
|
}
|
|
rvfree(meye.grab_fbuffer, gbuffers * gbufsize);
|
|
meye.grab_fbuffer = NULL;
|
|
}
|
|
|
|
gbuffers = max(2, min((int)req->count, MEYE_MAX_BUFNBRS));
|
|
req->count = gbuffers;
|
|
meye.grab_fbuffer = rvmalloc(gbuffers * gbufsize);
|
|
|
|
if (!meye.grab_fbuffer) {
|
|
printk(KERN_ERR "meye: v4l framebuffer allocation failed\n");
|
|
mutex_unlock(&meye.lock);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
for (i = 0; i < gbuffers; i++)
|
|
meye.vma_use_count[i] = 0;
|
|
|
|
mutex_unlock(&meye.lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_querybuf(struct file *file, void *fh, struct v4l2_buffer *buf)
|
|
{
|
|
unsigned int index = buf->index;
|
|
|
|
if (index >= gbuffers)
|
|
return -EINVAL;
|
|
|
|
buf->bytesused = meye.grab_buffer[index].size;
|
|
buf->flags = V4L2_BUF_FLAG_MAPPED | V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
|
|
|
|
if (meye.grab_buffer[index].state == MEYE_BUF_USING)
|
|
buf->flags |= V4L2_BUF_FLAG_QUEUED;
|
|
|
|
if (meye.grab_buffer[index].state == MEYE_BUF_DONE)
|
|
buf->flags |= V4L2_BUF_FLAG_DONE;
|
|
|
|
buf->field = V4L2_FIELD_NONE;
|
|
buf->timestamp = meye.grab_buffer[index].timestamp;
|
|
buf->sequence = meye.grab_buffer[index].sequence;
|
|
buf->memory = V4L2_MEMORY_MMAP;
|
|
buf->m.offset = index * gbufsize;
|
|
buf->length = gbufsize;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_qbuf(struct file *file, void *fh, struct v4l2_buffer *buf)
|
|
{
|
|
if (buf->memory != V4L2_MEMORY_MMAP)
|
|
return -EINVAL;
|
|
|
|
if (buf->index >= gbuffers)
|
|
return -EINVAL;
|
|
|
|
if (meye.grab_buffer[buf->index].state != MEYE_BUF_UNUSED)
|
|
return -EINVAL;
|
|
|
|
mutex_lock(&meye.lock);
|
|
buf->flags |= V4L2_BUF_FLAG_QUEUED;
|
|
buf->flags &= ~V4L2_BUF_FLAG_DONE;
|
|
meye.grab_buffer[buf->index].state = MEYE_BUF_USING;
|
|
kfifo_in_locked(&meye.grabq, (unsigned char *)&buf->index,
|
|
sizeof(int), &meye.grabq_lock);
|
|
mutex_unlock(&meye.lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_dqbuf(struct file *file, void *fh, struct v4l2_buffer *buf)
|
|
{
|
|
int reqnr;
|
|
|
|
if (buf->memory != V4L2_MEMORY_MMAP)
|
|
return -EINVAL;
|
|
|
|
mutex_lock(&meye.lock);
|
|
|
|
if (kfifo_len(&meye.doneq) == 0 && file->f_flags & O_NONBLOCK) {
|
|
mutex_unlock(&meye.lock);
|
|
return -EAGAIN;
|
|
}
|
|
|
|
if (wait_event_interruptible(meye.proc_list,
|
|
kfifo_len(&meye.doneq) != 0) < 0) {
|
|
mutex_unlock(&meye.lock);
|
|
return -EINTR;
|
|
}
|
|
|
|
if (!kfifo_out_locked(&meye.doneq, (unsigned char *)&reqnr,
|
|
sizeof(int), &meye.doneq_lock)) {
|
|
mutex_unlock(&meye.lock);
|
|
return -EBUSY;
|
|
}
|
|
|
|
if (meye.grab_buffer[reqnr].state != MEYE_BUF_DONE) {
|
|
mutex_unlock(&meye.lock);
|
|
return -EINVAL;
|
|
}
|
|
|
|
buf->index = reqnr;
|
|
buf->bytesused = meye.grab_buffer[reqnr].size;
|
|
buf->flags = V4L2_BUF_FLAG_MAPPED | V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
|
|
buf->field = V4L2_FIELD_NONE;
|
|
buf->timestamp = meye.grab_buffer[reqnr].timestamp;
|
|
buf->sequence = meye.grab_buffer[reqnr].sequence;
|
|
buf->memory = V4L2_MEMORY_MMAP;
|
|
buf->m.offset = reqnr * gbufsize;
|
|
buf->length = gbufsize;
|
|
meye.grab_buffer[reqnr].state = MEYE_BUF_UNUSED;
|
|
mutex_unlock(&meye.lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_streamon(struct file *file, void *fh, enum v4l2_buf_type i)
|
|
{
|
|
mutex_lock(&meye.lock);
|
|
|
|
switch (meye.mchip_mode) {
|
|
case MCHIP_HIC_MODE_CONT_OUT:
|
|
mchip_continuous_start();
|
|
break;
|
|
case MCHIP_HIC_MODE_CONT_COMP:
|
|
mchip_cont_compression_start();
|
|
break;
|
|
default:
|
|
mutex_unlock(&meye.lock);
|
|
return -EINVAL;
|
|
}
|
|
|
|
mutex_unlock(&meye.lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vidioc_streamoff(struct file *file, void *fh, enum v4l2_buf_type i)
|
|
{
|
|
mutex_lock(&meye.lock);
|
|
mchip_hic_stop();
|
|
kfifo_reset(&meye.grabq);
|
|
kfifo_reset(&meye.doneq);
|
|
|
|
for (i = 0; i < MEYE_MAX_BUFNBRS; i++)
|
|
meye.grab_buffer[i].state = MEYE_BUF_UNUSED;
|
|
|
|
mutex_unlock(&meye.lock);
|
|
return 0;
|
|
}
|
|
|
|
static long vidioc_default(struct file *file, void *fh, bool valid_prio,
|
|
unsigned int cmd, void *arg)
|
|
{
|
|
switch (cmd) {
|
|
case MEYEIOC_G_PARAMS:
|
|
return meyeioc_g_params((struct meye_params *) arg);
|
|
|
|
case MEYEIOC_S_PARAMS:
|
|
return meyeioc_s_params((struct meye_params *) arg);
|
|
|
|
case MEYEIOC_QBUF_CAPT:
|
|
return meyeioc_qbuf_capt((int *) arg);
|
|
|
|
case MEYEIOC_SYNC:
|
|
return meyeioc_sync(file, fh, (int *) arg);
|
|
|
|
case MEYEIOC_STILLCAPT:
|
|
return meyeioc_stillcapt();
|
|
|
|
case MEYEIOC_STILLJCAPT:
|
|
return meyeioc_stilljcapt((int *) arg);
|
|
|
|
default:
|
|
return -ENOTTY;
|
|
}
|
|
|
|
}
|
|
|
|
static __poll_t meye_poll(struct file *file, poll_table *wait)
|
|
{
|
|
__poll_t res = v4l2_ctrl_poll(file, wait);
|
|
|
|
mutex_lock(&meye.lock);
|
|
poll_wait(file, &meye.proc_list, wait);
|
|
if (kfifo_len(&meye.doneq))
|
|
res |= EPOLLIN | EPOLLRDNORM;
|
|
mutex_unlock(&meye.lock);
|
|
return res;
|
|
}
|
|
|
|
static void meye_vm_open(struct vm_area_struct *vma)
|
|
{
|
|
long idx = (long)vma->vm_private_data;
|
|
meye.vma_use_count[idx]++;
|
|
}
|
|
|
|
static void meye_vm_close(struct vm_area_struct *vma)
|
|
{
|
|
long idx = (long)vma->vm_private_data;
|
|
meye.vma_use_count[idx]--;
|
|
}
|
|
|
|
static const struct vm_operations_struct meye_vm_ops = {
|
|
.open = meye_vm_open,
|
|
.close = meye_vm_close,
|
|
};
|
|
|
|
static int meye_mmap(struct file *file, struct vm_area_struct *vma)
|
|
{
|
|
unsigned long start = vma->vm_start;
|
|
unsigned long size = vma->vm_end - vma->vm_start;
|
|
unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
|
|
unsigned long page, pos;
|
|
|
|
mutex_lock(&meye.lock);
|
|
if (size > gbuffers * gbufsize || offset > gbuffers * gbufsize - size) {
|
|
mutex_unlock(&meye.lock);
|
|
return -EINVAL;
|
|
}
|
|
if (!meye.grab_fbuffer) {
|
|
int i;
|
|
|
|
/* lazy allocation */
|
|
meye.grab_fbuffer = rvmalloc(gbuffers*gbufsize);
|
|
if (!meye.grab_fbuffer) {
|
|
printk(KERN_ERR "meye: v4l framebuffer allocation failed\n");
|
|
mutex_unlock(&meye.lock);
|
|
return -ENOMEM;
|
|
}
|
|
for (i = 0; i < gbuffers; i++)
|
|
meye.vma_use_count[i] = 0;
|
|
}
|
|
pos = (unsigned long)meye.grab_fbuffer + offset;
|
|
|
|
while (size > 0) {
|
|
page = vmalloc_to_pfn((void *)pos);
|
|
if (remap_pfn_range(vma, start, page, PAGE_SIZE, PAGE_SHARED)) {
|
|
mutex_unlock(&meye.lock);
|
|
return -EAGAIN;
|
|
}
|
|
start += PAGE_SIZE;
|
|
pos += PAGE_SIZE;
|
|
if (size > PAGE_SIZE)
|
|
size -= PAGE_SIZE;
|
|
else
|
|
size = 0;
|
|
}
|
|
|
|
vma->vm_ops = &meye_vm_ops;
|
|
vma->vm_flags &= ~VM_IO; /* not I/O memory */
|
|
vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
|
|
vma->vm_private_data = (void *) (offset / gbufsize);
|
|
meye_vm_open(vma);
|
|
|
|
mutex_unlock(&meye.lock);
|
|
return 0;
|
|
}
|
|
|
|
static const struct v4l2_file_operations meye_fops = {
|
|
.owner = THIS_MODULE,
|
|
.open = meye_open,
|
|
.release = meye_release,
|
|
.mmap = meye_mmap,
|
|
.unlocked_ioctl = video_ioctl2,
|
|
.poll = meye_poll,
|
|
};
|
|
|
|
static const struct v4l2_ioctl_ops meye_ioctl_ops = {
|
|
.vidioc_querycap = vidioc_querycap,
|
|
.vidioc_enum_input = vidioc_enum_input,
|
|
.vidioc_g_input = vidioc_g_input,
|
|
.vidioc_s_input = vidioc_s_input,
|
|
.vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
|
|
.vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
|
|
.vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
|
|
.vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
|
|
.vidioc_reqbufs = vidioc_reqbufs,
|
|
.vidioc_querybuf = vidioc_querybuf,
|
|
.vidioc_qbuf = vidioc_qbuf,
|
|
.vidioc_dqbuf = vidioc_dqbuf,
|
|
.vidioc_streamon = vidioc_streamon,
|
|
.vidioc_streamoff = vidioc_streamoff,
|
|
.vidioc_log_status = v4l2_ctrl_log_status,
|
|
.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
|
|
.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
|
|
.vidioc_default = vidioc_default,
|
|
};
|
|
|
|
static const struct video_device meye_template = {
|
|
.name = "meye",
|
|
.fops = &meye_fops,
|
|
.ioctl_ops = &meye_ioctl_ops,
|
|
.release = video_device_release_empty,
|
|
};
|
|
|
|
static const struct v4l2_ctrl_ops meye_ctrl_ops = {
|
|
.s_ctrl = meye_s_ctrl,
|
|
};
|
|
|
|
#ifdef CONFIG_PM
|
|
static int meye_suspend(struct pci_dev *pdev, pm_message_t state)
|
|
{
|
|
pci_save_state(pdev);
|
|
meye.pm_mchip_mode = meye.mchip_mode;
|
|
mchip_hic_stop();
|
|
mchip_set(MCHIP_MM_INTA, 0x0);
|
|
return 0;
|
|
}
|
|
|
|
static int meye_resume(struct pci_dev *pdev)
|
|
{
|
|
pci_restore_state(pdev);
|
|
pci_write_config_word(meye.mchip_dev, MCHIP_PCI_SOFTRESET_SET, 1);
|
|
|
|
mchip_delay(MCHIP_HIC_CMD, 0);
|
|
mchip_delay(MCHIP_HIC_STATUS, MCHIP_HIC_STATUS_IDLE);
|
|
msleep(1);
|
|
mchip_set(MCHIP_VRJ_SOFT_RESET, 1);
|
|
msleep(1);
|
|
mchip_set(MCHIP_MM_PCI_MODE, 5);
|
|
msleep(1);
|
|
mchip_set(MCHIP_MM_INTA, MCHIP_MM_INTA_HIC_1_MASK);
|
|
|
|
switch (meye.pm_mchip_mode) {
|
|
case MCHIP_HIC_MODE_CONT_OUT:
|
|
mchip_continuous_start();
|
|
break;
|
|
case MCHIP_HIC_MODE_CONT_COMP:
|
|
mchip_cont_compression_start();
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
static int meye_probe(struct pci_dev *pcidev, const struct pci_device_id *ent)
|
|
{
|
|
static const struct v4l2_ctrl_config ctrl_agc = {
|
|
.id = V4L2_CID_MEYE_AGC,
|
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
|
.ops = &meye_ctrl_ops,
|
|
.name = "AGC",
|
|
.max = 63,
|
|
.step = 1,
|
|
.def = 48,
|
|
.flags = V4L2_CTRL_FLAG_SLIDER,
|
|
};
|
|
static const struct v4l2_ctrl_config ctrl_picture = {
|
|
.id = V4L2_CID_MEYE_PICTURE,
|
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
|
.ops = &meye_ctrl_ops,
|
|
.name = "Picture",
|
|
.max = 63,
|
|
.step = 1,
|
|
};
|
|
static const struct v4l2_ctrl_config ctrl_framerate = {
|
|
.id = V4L2_CID_MEYE_FRAMERATE,
|
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
|
.ops = &meye_ctrl_ops,
|
|
.name = "Framerate",
|
|
.max = 31,
|
|
.step = 1,
|
|
};
|
|
struct v4l2_device *v4l2_dev = &meye.v4l2_dev;
|
|
int ret = -EBUSY;
|
|
unsigned long mchip_adr;
|
|
|
|
if (meye.mchip_dev != NULL) {
|
|
printk(KERN_ERR "meye: only one device allowed!\n");
|
|
return ret;
|
|
}
|
|
|
|
ret = v4l2_device_register(&pcidev->dev, v4l2_dev);
|
|
if (ret < 0) {
|
|
v4l2_err(v4l2_dev, "Could not register v4l2_device\n");
|
|
return ret;
|
|
}
|
|
ret = -ENOMEM;
|
|
meye.mchip_dev = pcidev;
|
|
|
|
meye.grab_temp = vmalloc(array_size(PAGE_SIZE, MCHIP_NB_PAGES_MJPEG));
|
|
if (!meye.grab_temp)
|
|
goto outvmalloc;
|
|
|
|
spin_lock_init(&meye.grabq_lock);
|
|
if (kfifo_alloc(&meye.grabq, sizeof(int) * MEYE_MAX_BUFNBRS,
|
|
GFP_KERNEL))
|
|
goto outkfifoalloc1;
|
|
|
|
spin_lock_init(&meye.doneq_lock);
|
|
if (kfifo_alloc(&meye.doneq, sizeof(int) * MEYE_MAX_BUFNBRS,
|
|
GFP_KERNEL))
|
|
goto outkfifoalloc2;
|
|
|
|
meye.vdev = meye_template;
|
|
meye.vdev.v4l2_dev = &meye.v4l2_dev;
|
|
|
|
ret = sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERA, 1);
|
|
if (ret) {
|
|
v4l2_err(v4l2_dev, "meye: unable to power on the camera\n");
|
|
v4l2_err(v4l2_dev, "meye: did you enable the camera in sonypi using the module options ?\n");
|
|
goto outsonypienable;
|
|
}
|
|
|
|
ret = pci_enable_device(meye.mchip_dev);
|
|
if (ret) {
|
|
v4l2_err(v4l2_dev, "meye: pci_enable_device failed\n");
|
|
goto outenabledev;
|
|
}
|
|
|
|
ret = -EIO;
|
|
mchip_adr = pci_resource_start(meye.mchip_dev,0);
|
|
if (!mchip_adr) {
|
|
v4l2_err(v4l2_dev, "meye: mchip has no device base address\n");
|
|
goto outregions;
|
|
}
|
|
if (!request_mem_region(pci_resource_start(meye.mchip_dev, 0),
|
|
pci_resource_len(meye.mchip_dev, 0),
|
|
"meye")) {
|
|
v4l2_err(v4l2_dev, "meye: request_mem_region failed\n");
|
|
goto outregions;
|
|
}
|
|
meye.mchip_mmregs = ioremap(mchip_adr, MCHIP_MM_REGS);
|
|
if (!meye.mchip_mmregs) {
|
|
v4l2_err(v4l2_dev, "meye: ioremap failed\n");
|
|
goto outremap;
|
|
}
|
|
|
|
meye.mchip_irq = pcidev->irq;
|
|
if (request_irq(meye.mchip_irq, meye_irq,
|
|
IRQF_SHARED, "meye", meye_irq)) {
|
|
v4l2_err(v4l2_dev, "request_irq failed\n");
|
|
goto outreqirq;
|
|
}
|
|
|
|
pci_write_config_byte(meye.mchip_dev, PCI_CACHE_LINE_SIZE, 8);
|
|
pci_write_config_byte(meye.mchip_dev, PCI_LATENCY_TIMER, 64);
|
|
|
|
pci_set_master(meye.mchip_dev);
|
|
|
|
/* Ask the camera to perform a soft reset. */
|
|
pci_write_config_word(meye.mchip_dev, MCHIP_PCI_SOFTRESET_SET, 1);
|
|
|
|
mchip_delay(MCHIP_HIC_CMD, 0);
|
|
mchip_delay(MCHIP_HIC_STATUS, MCHIP_HIC_STATUS_IDLE);
|
|
|
|
msleep(1);
|
|
mchip_set(MCHIP_VRJ_SOFT_RESET, 1);
|
|
|
|
msleep(1);
|
|
mchip_set(MCHIP_MM_PCI_MODE, 5);
|
|
|
|
msleep(1);
|
|
mchip_set(MCHIP_MM_INTA, MCHIP_MM_INTA_HIC_1_MASK);
|
|
|
|
mutex_init(&meye.lock);
|
|
init_waitqueue_head(&meye.proc_list);
|
|
|
|
v4l2_ctrl_handler_init(&meye.hdl, 3);
|
|
v4l2_ctrl_new_std(&meye.hdl, &meye_ctrl_ops,
|
|
V4L2_CID_BRIGHTNESS, 0, 63, 1, 32);
|
|
v4l2_ctrl_new_std(&meye.hdl, &meye_ctrl_ops,
|
|
V4L2_CID_HUE, 0, 63, 1, 32);
|
|
v4l2_ctrl_new_std(&meye.hdl, &meye_ctrl_ops,
|
|
V4L2_CID_CONTRAST, 0, 63, 1, 32);
|
|
v4l2_ctrl_new_std(&meye.hdl, &meye_ctrl_ops,
|
|
V4L2_CID_SATURATION, 0, 63, 1, 32);
|
|
v4l2_ctrl_new_custom(&meye.hdl, &ctrl_agc, NULL);
|
|
v4l2_ctrl_new_std(&meye.hdl, &meye_ctrl_ops,
|
|
V4L2_CID_SHARPNESS, 0, 63, 1, 32);
|
|
v4l2_ctrl_new_custom(&meye.hdl, &ctrl_picture, NULL);
|
|
v4l2_ctrl_new_std(&meye.hdl, &meye_ctrl_ops,
|
|
V4L2_CID_JPEG_COMPRESSION_QUALITY, 0, 10, 1, 8);
|
|
v4l2_ctrl_new_custom(&meye.hdl, &ctrl_framerate, NULL);
|
|
if (meye.hdl.error) {
|
|
v4l2_err(v4l2_dev, "couldn't register controls\n");
|
|
goto outvideoreg;
|
|
}
|
|
|
|
v4l2_ctrl_handler_setup(&meye.hdl);
|
|
meye.vdev.ctrl_handler = &meye.hdl;
|
|
|
|
if (video_register_device(&meye.vdev, VFL_TYPE_GRABBER,
|
|
video_nr) < 0) {
|
|
v4l2_err(v4l2_dev, "video_register_device failed\n");
|
|
goto outvideoreg;
|
|
}
|
|
|
|
v4l2_info(v4l2_dev, "Motion Eye Camera Driver v%s.\n",
|
|
MEYE_DRIVER_VERSION);
|
|
v4l2_info(v4l2_dev, "mchip KL5A72002 rev. %d, base %lx, irq %d\n",
|
|
meye.mchip_dev->revision, mchip_adr, meye.mchip_irq);
|
|
|
|
return 0;
|
|
|
|
outvideoreg:
|
|
v4l2_ctrl_handler_free(&meye.hdl);
|
|
free_irq(meye.mchip_irq, meye_irq);
|
|
outreqirq:
|
|
iounmap(meye.mchip_mmregs);
|
|
outremap:
|
|
release_mem_region(pci_resource_start(meye.mchip_dev, 0),
|
|
pci_resource_len(meye.mchip_dev, 0));
|
|
outregions:
|
|
pci_disable_device(meye.mchip_dev);
|
|
outenabledev:
|
|
sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERA, 0);
|
|
outsonypienable:
|
|
kfifo_free(&meye.doneq);
|
|
outkfifoalloc2:
|
|
kfifo_free(&meye.grabq);
|
|
outkfifoalloc1:
|
|
vfree(meye.grab_temp);
|
|
outvmalloc:
|
|
return ret;
|
|
}
|
|
|
|
static void meye_remove(struct pci_dev *pcidev)
|
|
{
|
|
video_unregister_device(&meye.vdev);
|
|
|
|
mchip_hic_stop();
|
|
|
|
mchip_dma_free();
|
|
|
|
/* disable interrupts */
|
|
mchip_set(MCHIP_MM_INTA, 0x0);
|
|
|
|
free_irq(meye.mchip_irq, meye_irq);
|
|
|
|
iounmap(meye.mchip_mmregs);
|
|
|
|
release_mem_region(pci_resource_start(meye.mchip_dev, 0),
|
|
pci_resource_len(meye.mchip_dev, 0));
|
|
|
|
pci_disable_device(meye.mchip_dev);
|
|
|
|
sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERA, 0);
|
|
|
|
kfifo_free(&meye.doneq);
|
|
kfifo_free(&meye.grabq);
|
|
|
|
vfree(meye.grab_temp);
|
|
|
|
if (meye.grab_fbuffer) {
|
|
rvfree(meye.grab_fbuffer, gbuffers*gbufsize);
|
|
meye.grab_fbuffer = NULL;
|
|
}
|
|
|
|
printk(KERN_INFO "meye: removed\n");
|
|
}
|
|
|
|
static const struct pci_device_id meye_pci_tbl[] = {
|
|
{ PCI_VDEVICE(KAWASAKI, PCI_DEVICE_ID_MCHIP_KL5A72002), 0 },
|
|
{ }
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(pci, meye_pci_tbl);
|
|
|
|
static struct pci_driver meye_driver = {
|
|
.name = "meye",
|
|
.id_table = meye_pci_tbl,
|
|
.probe = meye_probe,
|
|
.remove = meye_remove,
|
|
#ifdef CONFIG_PM
|
|
.suspend = meye_suspend,
|
|
.resume = meye_resume,
|
|
#endif
|
|
};
|
|
|
|
static int __init meye_init(void)
|
|
{
|
|
gbuffers = max(2, min((int)gbuffers, MEYE_MAX_BUFNBRS));
|
|
if (gbufsize > MEYE_MAX_BUFSIZE)
|
|
gbufsize = MEYE_MAX_BUFSIZE;
|
|
gbufsize = PAGE_ALIGN(gbufsize);
|
|
printk(KERN_INFO "meye: using %d buffers with %dk (%dk total) for capture\n",
|
|
gbuffers,
|
|
gbufsize / 1024, gbuffers * gbufsize / 1024);
|
|
return pci_register_driver(&meye_driver);
|
|
}
|
|
|
|
static void __exit meye_exit(void)
|
|
{
|
|
pci_unregister_driver(&meye_driver);
|
|
}
|
|
|
|
module_init(meye_init);
|
|
module_exit(meye_exit);
|