+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Motion Eye video4linux driver for Sony Vaio PictureBook
- *
- * Copyright (C) 2001-2004 Stelian Pop <stelian@popies.net>
- *
- * Copyright (C) 2001-2002 Alcôve <www.alcove.com>
- *
- * Copyright (C) 2000 Andrew Tridgell <tridge@valinux.com>
- *
- * Earlier work by Werner Almesberger, Paul `Rusty' Russell and Paul Mackerras.
- *
- * Some parts borrowed from various video4linux drivers, especially
- * bttv-driver.c and zoran.c, see original files for credits.
- */
-#include <linux/module.h>
-#include <linux/pci.h>
-#include <linux/sched.h>
-#include <linux/init.h>
-#include <linux/gfp.h>
-#include <linux/videodev2.h>
-#include <media/v4l2-common.h>
-#include <media/v4l2-device.h>
-#include <media/v4l2-ioctl.h>
-#include <media/v4l2-fh.h>
-#include <media/v4l2-event.h>
-#include <linux/uaccess.h>
-#include <asm/io.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-#include <linux/vmalloc.h>
-#include <linux/dma-mapping.h>
-
-#include "meye.h"
-#include <linux/meye.h>
-
-MODULE_AUTHOR("Stelian Pop <stelian@popies.net>");
-MODULE_DESCRIPTION("v4l2 driver for the MotionEye camera");
-MODULE_LICENSE("GPL");
-MODULE_VERSION(MEYE_DRIVER_VERSION);
-
-/* number of grab buffers */
-static unsigned int gbuffers = 2;
-module_param(gbuffers, int, 0444);
-MODULE_PARM_DESC(gbuffers, "number of capture buffers, default is 2 (32 max)");
-
-/* size of a grab buffer */
-static unsigned int gbufsize = MEYE_MAX_BUFSIZE;
-module_param(gbufsize, int, 0444);
-MODULE_PARM_DESC(gbufsize, "size of the capture buffers, default is 614400 (will be rounded up to a page multiple)");
-
-/* /dev/videoX registration number */
-static int video_nr = -1;
-module_param(video_nr, int, 0444);
-MODULE_PARM_DESC(video_nr, "video device to register (0=/dev/video0, etc)");
-
-/* driver structure - only one possible */
-static struct meye meye;
-
-/****************************************************************************/
-/* Memory allocation routines (stolen from bttv-driver.c) */
-/****************************************************************************/
-static void *rvmalloc(unsigned long size)
-{
- void *mem;
- unsigned long adr;
-
- size = PAGE_ALIGN(size);
- mem = vmalloc_32(size);
- if (mem) {
- memset(mem, 0, size);
- adr = (unsigned long) mem;
- while (size > 0) {
- SetPageReserved(vmalloc_to_page((void *)adr));
- adr += PAGE_SIZE;
- size -= PAGE_SIZE;
- }
- }
- return mem;
-}
-
-static void rvfree(void * mem, unsigned long size)
-{
- unsigned long adr;
-
- if (mem) {
- adr = (unsigned long) mem;
- while ((long) size > 0) {
- ClearPageReserved(vmalloc_to_page((void *)adr));
- adr += PAGE_SIZE;
- size -= PAGE_SIZE;
- }
- vfree(mem);
- }
-}
-
-/*
- * return a page table pointing to N pages of locked memory
- *
- * NOTE: The meye device expects DMA addresses on 32 bits, we build
- * a table of 1024 entries = 4 bytes * 1024 = 4096 bytes.
- */
-static int ptable_alloc(void)
-{
- u32 *pt;
- int i;
-
- memset(meye.mchip_ptable, 0, sizeof(meye.mchip_ptable));
-
- /* give only 32 bit DMA addresses */
- if (dma_set_mask(&meye.mchip_dev->dev, DMA_BIT_MASK(32)))
- return -1;
-
- meye.mchip_ptable_toc = dma_alloc_coherent(&meye.mchip_dev->dev,
- PAGE_SIZE,
- &meye.mchip_dmahandle,
- GFP_KERNEL);
- if (!meye.mchip_ptable_toc) {
- meye.mchip_dmahandle = 0;
- return -1;
- }
-
- pt = meye.mchip_ptable_toc;
- for (i = 0; i < MCHIP_NB_PAGES; i++) {
- dma_addr_t dma;
- meye.mchip_ptable[i] = dma_alloc_coherent(&meye.mchip_dev->dev,
- PAGE_SIZE,
- &dma,
- GFP_KERNEL);
- if (!meye.mchip_ptable[i]) {
- int j;
- pt = meye.mchip_ptable_toc;
- for (j = 0; j < i; ++j) {
- dma = (dma_addr_t) *pt;
- dma_free_coherent(&meye.mchip_dev->dev,
- PAGE_SIZE,
- meye.mchip_ptable[j], dma);
- pt++;
- }
- dma_free_coherent(&meye.mchip_dev->dev,
- PAGE_SIZE,
- meye.mchip_ptable_toc,
- meye.mchip_dmahandle);
- meye.mchip_ptable_toc = NULL;
- meye.mchip_dmahandle = 0;
- return -1;
- }
- *pt = (u32) dma;
- pt++;
- }
- return 0;
-}
-
-static void ptable_free(void)
-{
- u32 *pt;
- int i;
-
- pt = meye.mchip_ptable_toc;
- for (i = 0; i < MCHIP_NB_PAGES; i++) {
- dma_addr_t dma = (dma_addr_t) *pt;
- if (meye.mchip_ptable[i])
- dma_free_coherent(&meye.mchip_dev->dev,
- PAGE_SIZE,
- meye.mchip_ptable[i], dma);
- pt++;
- }
-
- if (meye.mchip_ptable_toc)
- dma_free_coherent(&meye.mchip_dev->dev,
- PAGE_SIZE,
- meye.mchip_ptable_toc,
- meye.mchip_dmahandle);
-
- memset(meye.mchip_ptable, 0, sizeof(meye.mchip_ptable));
- meye.mchip_ptable_toc = NULL;
- meye.mchip_dmahandle = 0;
-}
-
-/* copy data from ptable into buf */
-static void ptable_copy(u8 *buf, int start, int size, int pt_pages)
-{
- int i;
-
- for (i = 0; i < (size / PAGE_SIZE) * PAGE_SIZE; i += PAGE_SIZE) {
- memcpy(buf + i, meye.mchip_ptable[start++], PAGE_SIZE);
- if (start >= pt_pages)
- start = 0;
- }
- memcpy(buf + i, meye.mchip_ptable[start], size % PAGE_SIZE);
-}
-
-/****************************************************************************/
-/* JPEG tables at different qualities to load into the VRJ chip */
-/****************************************************************************/
-
-/* return a set of quantisation tables based on a quality from 1 to 10 */
-static u16 *jpeg_quantisation_tables(int *length, int quality)
-{
- static u16 jpeg_tables[][70] = { {
- 0xdbff, 0x4300, 0xff00, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
- 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
- 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
- 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
- 0xffff, 0xffff, 0xffff,
- 0xdbff, 0x4300, 0xff01, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
- 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
- 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
- 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
- 0xffff, 0xffff, 0xffff,
- },
- {
- 0xdbff, 0x4300, 0x5000, 0x3c37, 0x3c46, 0x5032, 0x4146, 0x5a46,
- 0x5055, 0x785f, 0x82c8, 0x6e78, 0x786e, 0xaff5, 0x91b9, 0xffc8,
- 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
- 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
- 0xffff, 0xffff, 0xffff,
- 0xdbff, 0x4300, 0x5501, 0x5a5a, 0x6978, 0xeb78, 0x8282, 0xffeb,
- 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
- 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
- 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
- 0xffff, 0xffff, 0xffff,
- },
- {
- 0xdbff, 0x4300, 0x2800, 0x1e1c, 0x1e23, 0x2819, 0x2123, 0x2d23,
- 0x282b, 0x3c30, 0x4164, 0x373c, 0x3c37, 0x587b, 0x495d, 0x9164,
- 0x9980, 0x8f96, 0x8c80, 0xa08a, 0xe6b4, 0xa0c3, 0xdaaa, 0x8aad,
- 0xc88c, 0xcbff, 0xeeda, 0xfff5, 0xffff, 0xc19b, 0xffff, 0xfaff,
- 0xe6ff, 0xfffd, 0xfff8,
- 0xdbff, 0x4300, 0x2b01, 0x2d2d, 0x353c, 0x763c, 0x4141, 0xf876,
- 0x8ca5, 0xf8a5, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8,
- 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8,
- 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8,
- 0xf8f8, 0xf8f8, 0xfff8,
- },
- {
- 0xdbff, 0x4300, 0x1b00, 0x1412, 0x1417, 0x1b11, 0x1617, 0x1e17,
- 0x1b1c, 0x2820, 0x2b42, 0x2528, 0x2825, 0x3a51, 0x303d, 0x6042,
- 0x6555, 0x5f64, 0x5d55, 0x6a5b, 0x9978, 0x6a81, 0x9071, 0x5b73,
- 0x855d, 0x86b5, 0x9e90, 0xaba3, 0xabad, 0x8067, 0xc9bc, 0xa6ba,
- 0x99c7, 0xaba8, 0xffa4,
- 0xdbff, 0x4300, 0x1c01, 0x1e1e, 0x2328, 0x4e28, 0x2b2b, 0xa44e,
- 0x5d6e, 0xa46e, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4,
- 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4,
- 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4,
- 0xa4a4, 0xa4a4, 0xffa4,
- },
- {
- 0xdbff, 0x4300, 0x1400, 0x0f0e, 0x0f12, 0x140d, 0x1012, 0x1712,
- 0x1415, 0x1e18, 0x2132, 0x1c1e, 0x1e1c, 0x2c3d, 0x242e, 0x4932,
- 0x4c40, 0x474b, 0x4640, 0x5045, 0x735a, 0x5062, 0x6d55, 0x4556,
- 0x6446, 0x6588, 0x776d, 0x817b, 0x8182, 0x604e, 0x978d, 0x7d8c,
- 0x7396, 0x817e, 0xff7c,
- 0xdbff, 0x4300, 0x1501, 0x1717, 0x1a1e, 0x3b1e, 0x2121, 0x7c3b,
- 0x4653, 0x7c53, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c,
- 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c,
- 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c,
- 0x7c7c, 0x7c7c, 0xff7c,
- },
- {
- 0xdbff, 0x4300, 0x1000, 0x0c0b, 0x0c0e, 0x100a, 0x0d0e, 0x120e,
- 0x1011, 0x1813, 0x1a28, 0x1618, 0x1816, 0x2331, 0x1d25, 0x3a28,
- 0x3d33, 0x393c, 0x3833, 0x4037, 0x5c48, 0x404e, 0x5744, 0x3745,
- 0x5038, 0x516d, 0x5f57, 0x6762, 0x6768, 0x4d3e, 0x7971, 0x6470,
- 0x5c78, 0x6765, 0xff63,
- 0xdbff, 0x4300, 0x1101, 0x1212, 0x1518, 0x2f18, 0x1a1a, 0x632f,
- 0x3842, 0x6342, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363,
- 0x6363, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363,
- 0x6363, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363,
- 0x6363, 0x6363, 0xff63,
- },
- {
- 0xdbff, 0x4300, 0x0d00, 0x0a09, 0x0a0b, 0x0d08, 0x0a0b, 0x0e0b,
- 0x0d0e, 0x130f, 0x1520, 0x1213, 0x1312, 0x1c27, 0x171e, 0x2e20,
- 0x3129, 0x2e30, 0x2d29, 0x332c, 0x4a3a, 0x333e, 0x4636, 0x2c37,
- 0x402d, 0x4157, 0x4c46, 0x524e, 0x5253, 0x3e32, 0x615a, 0x505a,
- 0x4a60, 0x5251, 0xff4f,
- 0xdbff, 0x4300, 0x0e01, 0x0e0e, 0x1113, 0x2613, 0x1515, 0x4f26,
- 0x2d35, 0x4f35, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f,
- 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f,
- 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f,
- 0x4f4f, 0x4f4f, 0xff4f,
- },
- {
- 0xdbff, 0x4300, 0x0a00, 0x0707, 0x0708, 0x0a06, 0x0808, 0x0b08,
- 0x0a0a, 0x0e0b, 0x1018, 0x0d0e, 0x0e0d, 0x151d, 0x1116, 0x2318,
- 0x251f, 0x2224, 0x221f, 0x2621, 0x372b, 0x262f, 0x3429, 0x2129,
- 0x3022, 0x3141, 0x3934, 0x3e3b, 0x3e3e, 0x2e25, 0x4944, 0x3c43,
- 0x3748, 0x3e3d, 0xff3b,
- 0xdbff, 0x4300, 0x0a01, 0x0b0b, 0x0d0e, 0x1c0e, 0x1010, 0x3b1c,
- 0x2228, 0x3b28, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b,
- 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b,
- 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b,
- 0x3b3b, 0x3b3b, 0xff3b,
- },
- {
- 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,
- },
- {
- 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;
- meye.grab_buffer[reqnr].ts = ktime_get_ns();
- 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;
- meye.grab_buffer[reqnr].ts = ktime_get_ns();
- 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;
- }
- fallthrough;
- 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)
-{
- strscpy(cap->driver, "meye", sizeof(cap->driver));
- strscpy(cap->card, "meye", sizeof(cap->card));
- return 0;
-}
-
-static int vidioc_enum_input(struct file *file, void *fh, struct v4l2_input *i)
-{
- if (i->index != 0)
- return -EINVAL;
-
- strscpy(i->name, "Camera", sizeof(i->name));
- 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;
- f->pixelformat = V4L2_PIX_FMT_YUYV;
- } else {
- /* compressed MJPEG capture */
- 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;
- v4l2_buffer_set_timestamp(buf, meye.grab_buffer[index].ts);
- 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;
- v4l2_buffer_set_timestamp(buf, meye.grab_buffer[reqnr].ts);
- 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,
- .device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING,
-};
-
-static const struct v4l2_ctrl_ops meye_ctrl_ops = {
- .s_ctrl = meye_s_ctrl,
-};
-
-static int __maybe_unused meye_suspend(struct device *dev)
-{
- meye.pm_mchip_mode = meye.mchip_mode;
- mchip_hic_stop();
- mchip_set(MCHIP_MM_INTA, 0x0);
- return 0;
-}
-
-static int __maybe_unused meye_resume(struct device *dev)
-{
- 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;
-}
-
-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_VIDEO,
- 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 SIMPLE_DEV_PM_OPS(meye_pm_ops, meye_suspend, meye_resume);
-
-static struct pci_driver meye_driver = {
- .name = "meye",
- .id_table = meye_pci_tbl,
- .probe = meye_probe,
- .remove = meye_remove,
- .driver.pm = &meye_pm_ops,
-};
-
-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);
projects / nvme.git / commitdiff