Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Motion Eye video4linux driver for Sony Vaio PictureBook |
| 3 | * |
| 4 | * Copyright (C) 2001-2004 Stelian Pop <stelian@popies.net> |
| 5 | * |
Jan Engelhardt | 96de0e2 | 2007-10-19 23:21:04 +0200 | [diff] [blame] | 6 | * Copyright (C) 2001-2002 AlcĂ´ve <www.alcove.com> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | * |
| 8 | * Copyright (C) 2000 Andrew Tridgell <tridge@valinux.com> |
| 9 | * |
| 10 | * Earlier work by Werner Almesberger, Paul `Rusty' Russell and Paul Mackerras. |
| 11 | * |
| 12 | * Some parts borrowed from various video4linux drivers, especially |
| 13 | * bttv-driver.c and zoran.c, see original files for credits. |
| 14 | * |
| 15 | * This program is free software; you can redistribute it and/or modify |
| 16 | * it under the terms of the GNU General Public License as published by |
| 17 | * the Free Software Foundation; either version 2 of the License, or |
| 18 | * (at your option) any later version. |
| 19 | * |
| 20 | * This program is distributed in the hope that it will be useful, |
| 21 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 22 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 23 | * GNU General Public License for more details. |
| 24 | * |
| 25 | * You should have received a copy of the GNU General Public License |
| 26 | * along with this program; if not, write to the Free Software |
| 27 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 28 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 29 | #include <linux/module.h> |
| 30 | #include <linux/pci.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 31 | #include <linux/init.h> |
| 32 | #include <linux/videodev.h> |
Mauro Carvalho Chehab | 5e87efa | 2006-06-05 10:26:32 -0300 | [diff] [blame] | 33 | #include <media/v4l2-common.h> |
Hans Verkuil | 35ea11f | 2008-07-20 08:12:02 -0300 | [diff] [blame] | 34 | #include <media/v4l2-ioctl.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 35 | #include <asm/uaccess.h> |
| 36 | #include <asm/io.h> |
| 37 | #include <linux/delay.h> |
| 38 | #include <linux/interrupt.h> |
| 39 | #include <linux/vmalloc.h> |
Tobias Klauser | d013a06 | 2005-09-06 15:17:07 -0700 | [diff] [blame] | 40 | #include <linux/dma-mapping.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 41 | |
| 42 | #include "meye.h" |
| 43 | #include <linux/meye.h> |
| 44 | |
| 45 | MODULE_AUTHOR("Stelian Pop <stelian@popies.net>"); |
Douglas Schilling Landgraf | 6ec6e0c | 2008-04-10 02:07:14 -0300 | [diff] [blame] | 46 | MODULE_DESCRIPTION("v4l2 driver for the MotionEye camera"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 47 | MODULE_LICENSE("GPL"); |
| 48 | MODULE_VERSION(MEYE_DRIVER_VERSION); |
| 49 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 50 | /* number of grab buffers */ |
| 51 | static unsigned int gbuffers = 2; |
| 52 | module_param(gbuffers, int, 0444); |
| 53 | MODULE_PARM_DESC(gbuffers, "number of capture buffers, default is 2 (32 max)"); |
| 54 | |
| 55 | /* size of a grab buffer */ |
| 56 | static unsigned int gbufsize = MEYE_MAX_BUFSIZE; |
| 57 | module_param(gbufsize, int, 0444); |
| 58 | MODULE_PARM_DESC(gbufsize, "size of the capture buffers, default is 614400" |
| 59 | " (will be rounded up to a page multiple)"); |
| 60 | |
| 61 | /* /dev/videoX registration number */ |
| 62 | static int video_nr = -1; |
| 63 | module_param(video_nr, int, 0444); |
| 64 | MODULE_PARM_DESC(video_nr, "video device to register (0=/dev/video0, etc)"); |
| 65 | |
| 66 | /* driver structure - only one possible */ |
| 67 | static struct meye meye; |
| 68 | |
| 69 | /****************************************************************************/ |
| 70 | /* Memory allocation routines (stolen from bttv-driver.c) */ |
| 71 | /****************************************************************************/ |
| 72 | static void *rvmalloc(unsigned long size) |
| 73 | { |
| 74 | void *mem; |
| 75 | unsigned long adr; |
| 76 | |
| 77 | size = PAGE_ALIGN(size); |
| 78 | mem = vmalloc_32(size); |
| 79 | if (mem) { |
| 80 | memset(mem, 0, size); |
| 81 | adr = (unsigned long) mem; |
| 82 | while (size > 0) { |
| 83 | SetPageReserved(vmalloc_to_page((void *)adr)); |
| 84 | adr += PAGE_SIZE; |
| 85 | size -= PAGE_SIZE; |
| 86 | } |
| 87 | } |
| 88 | return mem; |
| 89 | } |
| 90 | |
| 91 | static void rvfree(void * mem, unsigned long size) |
| 92 | { |
| 93 | unsigned long adr; |
| 94 | |
| 95 | if (mem) { |
| 96 | adr = (unsigned long) mem; |
| 97 | while ((long) size > 0) { |
| 98 | ClearPageReserved(vmalloc_to_page((void *)adr)); |
| 99 | adr += PAGE_SIZE; |
| 100 | size -= PAGE_SIZE; |
| 101 | } |
| 102 | vfree(mem); |
| 103 | } |
| 104 | } |
| 105 | |
| 106 | /* |
| 107 | * return a page table pointing to N pages of locked memory |
| 108 | * |
| 109 | * NOTE: The meye device expects DMA addresses on 32 bits, we build |
| 110 | * a table of 1024 entries = 4 bytes * 1024 = 4096 bytes. |
| 111 | */ |
| 112 | static int ptable_alloc(void) |
| 113 | { |
| 114 | u32 *pt; |
| 115 | int i; |
| 116 | |
| 117 | memset(meye.mchip_ptable, 0, sizeof(meye.mchip_ptable)); |
| 118 | |
| 119 | /* give only 32 bit DMA addresses */ |
Tobias Klauser | d013a06 | 2005-09-06 15:17:07 -0700 | [diff] [blame] | 120 | if (dma_set_mask(&meye.mchip_dev->dev, DMA_32BIT_MASK)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 121 | return -1; |
| 122 | |
| 123 | meye.mchip_ptable_toc = dma_alloc_coherent(&meye.mchip_dev->dev, |
| 124 | PAGE_SIZE, |
| 125 | &meye.mchip_dmahandle, |
| 126 | GFP_KERNEL); |
| 127 | if (!meye.mchip_ptable_toc) { |
| 128 | meye.mchip_dmahandle = 0; |
| 129 | return -1; |
| 130 | } |
| 131 | |
| 132 | pt = meye.mchip_ptable_toc; |
| 133 | for (i = 0; i < MCHIP_NB_PAGES; i++) { |
| 134 | dma_addr_t dma; |
| 135 | meye.mchip_ptable[i] = dma_alloc_coherent(&meye.mchip_dev->dev, |
| 136 | PAGE_SIZE, |
| 137 | &dma, |
| 138 | GFP_KERNEL); |
| 139 | if (!meye.mchip_ptable[i]) { |
| 140 | int j; |
| 141 | pt = meye.mchip_ptable_toc; |
| 142 | for (j = 0; j < i; ++j) { |
| 143 | dma = (dma_addr_t) *pt; |
| 144 | dma_free_coherent(&meye.mchip_dev->dev, |
| 145 | PAGE_SIZE, |
| 146 | meye.mchip_ptable[j], dma); |
| 147 | pt++; |
| 148 | } |
| 149 | dma_free_coherent(&meye.mchip_dev->dev, |
| 150 | PAGE_SIZE, |
| 151 | meye.mchip_ptable_toc, |
| 152 | meye.mchip_dmahandle); |
| 153 | meye.mchip_ptable_toc = NULL; |
| 154 | meye.mchip_dmahandle = 0; |
| 155 | return -1; |
| 156 | } |
| 157 | *pt = (u32) dma; |
| 158 | pt++; |
| 159 | } |
| 160 | return 0; |
| 161 | } |
| 162 | |
| 163 | static void ptable_free(void) |
| 164 | { |
| 165 | u32 *pt; |
| 166 | int i; |
| 167 | |
| 168 | pt = meye.mchip_ptable_toc; |
| 169 | for (i = 0; i < MCHIP_NB_PAGES; i++) { |
| 170 | dma_addr_t dma = (dma_addr_t) *pt; |
| 171 | if (meye.mchip_ptable[i]) |
| 172 | dma_free_coherent(&meye.mchip_dev->dev, |
| 173 | PAGE_SIZE, |
| 174 | meye.mchip_ptable[i], dma); |
| 175 | pt++; |
| 176 | } |
| 177 | |
| 178 | if (meye.mchip_ptable_toc) |
| 179 | dma_free_coherent(&meye.mchip_dev->dev, |
| 180 | PAGE_SIZE, |
| 181 | meye.mchip_ptable_toc, |
| 182 | meye.mchip_dmahandle); |
| 183 | |
| 184 | memset(meye.mchip_ptable, 0, sizeof(meye.mchip_ptable)); |
| 185 | meye.mchip_ptable_toc = NULL; |
| 186 | meye.mchip_dmahandle = 0; |
| 187 | } |
| 188 | |
| 189 | /* copy data from ptable into buf */ |
| 190 | static void ptable_copy(u8 *buf, int start, int size, int pt_pages) |
| 191 | { |
| 192 | int i; |
| 193 | |
| 194 | for (i = 0; i < (size / PAGE_SIZE) * PAGE_SIZE; i += PAGE_SIZE) { |
| 195 | memcpy(buf + i, meye.mchip_ptable[start++], PAGE_SIZE); |
| 196 | if (start >= pt_pages) |
| 197 | start = 0; |
| 198 | } |
| 199 | memcpy(buf + i, meye.mchip_ptable[start], size % PAGE_SIZE); |
| 200 | } |
| 201 | |
| 202 | /****************************************************************************/ |
| 203 | /* JPEG tables at different qualities to load into the VRJ chip */ |
| 204 | /****************************************************************************/ |
| 205 | |
| 206 | /* return a set of quantisation tables based on a quality from 1 to 10 */ |
| 207 | static u16 *jpeg_quantisation_tables(int *length, int quality) |
| 208 | { |
| 209 | static u16 jpeg_tables[][70] = { { |
| 210 | 0xdbff, 0x4300, 0xff00, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, |
| 211 | 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, |
| 212 | 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, |
| 213 | 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, |
| 214 | 0xffff, 0xffff, 0xffff, |
| 215 | 0xdbff, 0x4300, 0xff01, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, |
| 216 | 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, |
| 217 | 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, |
| 218 | 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, |
| 219 | 0xffff, 0xffff, 0xffff, |
| 220 | }, |
| 221 | { |
| 222 | 0xdbff, 0x4300, 0x5000, 0x3c37, 0x3c46, 0x5032, 0x4146, 0x5a46, |
| 223 | 0x5055, 0x785f, 0x82c8, 0x6e78, 0x786e, 0xaff5, 0x91b9, 0xffc8, |
| 224 | 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, |
| 225 | 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, |
| 226 | 0xffff, 0xffff, 0xffff, |
| 227 | 0xdbff, 0x4300, 0x5501, 0x5a5a, 0x6978, 0xeb78, 0x8282, 0xffeb, |
| 228 | 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, |
| 229 | 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, |
| 230 | 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, |
| 231 | 0xffff, 0xffff, 0xffff, |
| 232 | }, |
| 233 | { |
| 234 | 0xdbff, 0x4300, 0x2800, 0x1e1c, 0x1e23, 0x2819, 0x2123, 0x2d23, |
| 235 | 0x282b, 0x3c30, 0x4164, 0x373c, 0x3c37, 0x587b, 0x495d, 0x9164, |
| 236 | 0x9980, 0x8f96, 0x8c80, 0xa08a, 0xe6b4, 0xa0c3, 0xdaaa, 0x8aad, |
| 237 | 0xc88c, 0xcbff, 0xeeda, 0xfff5, 0xffff, 0xc19b, 0xffff, 0xfaff, |
| 238 | 0xe6ff, 0xfffd, 0xfff8, |
| 239 | 0xdbff, 0x4300, 0x2b01, 0x2d2d, 0x353c, 0x763c, 0x4141, 0xf876, |
| 240 | 0x8ca5, 0xf8a5, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, |
| 241 | 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, |
| 242 | 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, |
| 243 | 0xf8f8, 0xf8f8, 0xfff8, |
| 244 | }, |
| 245 | { |
| 246 | 0xdbff, 0x4300, 0x1b00, 0x1412, 0x1417, 0x1b11, 0x1617, 0x1e17, |
| 247 | 0x1b1c, 0x2820, 0x2b42, 0x2528, 0x2825, 0x3a51, 0x303d, 0x6042, |
| 248 | 0x6555, 0x5f64, 0x5d55, 0x6a5b, 0x9978, 0x6a81, 0x9071, 0x5b73, |
| 249 | 0x855d, 0x86b5, 0x9e90, 0xaba3, 0xabad, 0x8067, 0xc9bc, 0xa6ba, |
| 250 | 0x99c7, 0xaba8, 0xffa4, |
| 251 | 0xdbff, 0x4300, 0x1c01, 0x1e1e, 0x2328, 0x4e28, 0x2b2b, 0xa44e, |
| 252 | 0x5d6e, 0xa46e, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, |
| 253 | 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, |
| 254 | 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, |
| 255 | 0xa4a4, 0xa4a4, 0xffa4, |
| 256 | }, |
| 257 | { |
| 258 | 0xdbff, 0x4300, 0x1400, 0x0f0e, 0x0f12, 0x140d, 0x1012, 0x1712, |
| 259 | 0x1415, 0x1e18, 0x2132, 0x1c1e, 0x1e1c, 0x2c3d, 0x242e, 0x4932, |
| 260 | 0x4c40, 0x474b, 0x4640, 0x5045, 0x735a, 0x5062, 0x6d55, 0x4556, |
| 261 | 0x6446, 0x6588, 0x776d, 0x817b, 0x8182, 0x604e, 0x978d, 0x7d8c, |
| 262 | 0x7396, 0x817e, 0xff7c, |
| 263 | 0xdbff, 0x4300, 0x1501, 0x1717, 0x1a1e, 0x3b1e, 0x2121, 0x7c3b, |
| 264 | 0x4653, 0x7c53, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, |
| 265 | 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, |
| 266 | 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, |
| 267 | 0x7c7c, 0x7c7c, 0xff7c, |
| 268 | }, |
| 269 | { |
| 270 | 0xdbff, 0x4300, 0x1000, 0x0c0b, 0x0c0e, 0x100a, 0x0d0e, 0x120e, |
| 271 | 0x1011, 0x1813, 0x1a28, 0x1618, 0x1816, 0x2331, 0x1d25, 0x3a28, |
| 272 | 0x3d33, 0x393c, 0x3833, 0x4037, 0x5c48, 0x404e, 0x5744, 0x3745, |
| 273 | 0x5038, 0x516d, 0x5f57, 0x6762, 0x6768, 0x4d3e, 0x7971, 0x6470, |
| 274 | 0x5c78, 0x6765, 0xff63, |
| 275 | 0xdbff, 0x4300, 0x1101, 0x1212, 0x1518, 0x2f18, 0x1a1a, 0x632f, |
| 276 | 0x3842, 0x6342, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363, |
| 277 | 0x6363, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363, |
| 278 | 0x6363, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363, |
| 279 | 0x6363, 0x6363, 0xff63, |
| 280 | }, |
| 281 | { |
| 282 | 0xdbff, 0x4300, 0x0d00, 0x0a09, 0x0a0b, 0x0d08, 0x0a0b, 0x0e0b, |
| 283 | 0x0d0e, 0x130f, 0x1520, 0x1213, 0x1312, 0x1c27, 0x171e, 0x2e20, |
| 284 | 0x3129, 0x2e30, 0x2d29, 0x332c, 0x4a3a, 0x333e, 0x4636, 0x2c37, |
| 285 | 0x402d, 0x4157, 0x4c46, 0x524e, 0x5253, 0x3e32, 0x615a, 0x505a, |
| 286 | 0x4a60, 0x5251, 0xff4f, |
| 287 | 0xdbff, 0x4300, 0x0e01, 0x0e0e, 0x1113, 0x2613, 0x1515, 0x4f26, |
| 288 | 0x2d35, 0x4f35, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, |
| 289 | 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, |
| 290 | 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, |
| 291 | 0x4f4f, 0x4f4f, 0xff4f, |
| 292 | }, |
| 293 | { |
| 294 | 0xdbff, 0x4300, 0x0a00, 0x0707, 0x0708, 0x0a06, 0x0808, 0x0b08, |
| 295 | 0x0a0a, 0x0e0b, 0x1018, 0x0d0e, 0x0e0d, 0x151d, 0x1116, 0x2318, |
| 296 | 0x251f, 0x2224, 0x221f, 0x2621, 0x372b, 0x262f, 0x3429, 0x2129, |
| 297 | 0x3022, 0x3141, 0x3934, 0x3e3b, 0x3e3e, 0x2e25, 0x4944, 0x3c43, |
| 298 | 0x3748, 0x3e3d, 0xff3b, |
| 299 | 0xdbff, 0x4300, 0x0a01, 0x0b0b, 0x0d0e, 0x1c0e, 0x1010, 0x3b1c, |
| 300 | 0x2228, 0x3b28, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, |
| 301 | 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, |
| 302 | 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, |
| 303 | 0x3b3b, 0x3b3b, 0xff3b, |
| 304 | }, |
| 305 | { |
| 306 | 0xdbff, 0x4300, 0x0600, 0x0504, 0x0506, 0x0604, 0x0506, 0x0706, |
| 307 | 0x0607, 0x0a08, 0x0a10, 0x090a, 0x0a09, 0x0e14, 0x0c0f, 0x1710, |
| 308 | 0x1814, 0x1718, 0x1614, 0x1a16, 0x251d, 0x1a1f, 0x231b, 0x161c, |
| 309 | 0x2016, 0x202c, 0x2623, 0x2927, 0x292a, 0x1f19, 0x302d, 0x282d, |
| 310 | 0x2530, 0x2928, 0xff28, |
| 311 | 0xdbff, 0x4300, 0x0701, 0x0707, 0x080a, 0x130a, 0x0a0a, 0x2813, |
| 312 | 0x161a, 0x281a, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828, |
| 313 | 0x2828, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828, |
| 314 | 0x2828, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828, |
| 315 | 0x2828, 0x2828, 0xff28, |
| 316 | }, |
| 317 | { |
| 318 | 0xdbff, 0x4300, 0x0300, 0x0202, 0x0203, 0x0302, 0x0303, 0x0403, |
| 319 | 0x0303, 0x0504, 0x0508, 0x0405, 0x0504, 0x070a, 0x0607, 0x0c08, |
| 320 | 0x0c0a, 0x0b0c, 0x0b0a, 0x0d0b, 0x120e, 0x0d10, 0x110e, 0x0b0e, |
| 321 | 0x100b, 0x1016, 0x1311, 0x1514, 0x1515, 0x0f0c, 0x1817, 0x1416, |
| 322 | 0x1218, 0x1514, 0xff14, |
| 323 | 0xdbff, 0x4300, 0x0301, 0x0404, 0x0405, 0x0905, 0x0505, 0x1409, |
| 324 | 0x0b0d, 0x140d, 0x1414, 0x1414, 0x1414, 0x1414, 0x1414, 0x1414, |
| 325 | 0x1414, 0x1414, 0x1414, 0x1414, 0x1414, 0x1414, 0x1414, 0x1414, |
| 326 | 0x1414, 0x1414, 0x1414, 0x1414, 0x1414, 0x1414, 0x1414, 0x1414, |
| 327 | 0x1414, 0x1414, 0xff14, |
| 328 | }, |
| 329 | { |
| 330 | 0xdbff, 0x4300, 0x0100, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, |
| 331 | 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, |
| 332 | 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, |
| 333 | 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, |
| 334 | 0x0101, 0x0101, 0xff01, |
| 335 | 0xdbff, 0x4300, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, |
| 336 | 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, |
| 337 | 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, |
| 338 | 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, |
| 339 | 0x0101, 0x0101, 0xff01, |
| 340 | } }; |
| 341 | |
| 342 | if (quality < 0 || quality > 10) { |
| 343 | printk(KERN_WARNING |
| 344 | "meye: invalid quality level %d - using 8\n", quality); |
| 345 | quality = 8; |
| 346 | } |
| 347 | |
| 348 | *length = ARRAY_SIZE(jpeg_tables[quality]); |
| 349 | return jpeg_tables[quality]; |
| 350 | } |
| 351 | |
| 352 | /* return a generic set of huffman tables */ |
| 353 | static u16 *jpeg_huffman_tables(int *length) |
| 354 | { |
| 355 | static u16 tables[] = { |
| 356 | 0xC4FF, 0xB500, 0x0010, 0x0102, 0x0303, 0x0402, 0x0503, 0x0405, |
| 357 | 0x0004, 0x0100, 0x017D, 0x0302, 0x0400, 0x0511, 0x2112, 0x4131, |
| 358 | 0x1306, 0x6151, 0x2207, 0x1471, 0x8132, 0xA191, 0x2308, 0xB142, |
| 359 | 0x15C1, 0xD152, 0x24F0, 0x6233, 0x8272, 0x0A09, 0x1716, 0x1918, |
| 360 | 0x251A, 0x2726, 0x2928, 0x342A, 0x3635, 0x3837, 0x3A39, 0x4443, |
| 361 | 0x4645, 0x4847, 0x4A49, 0x5453, 0x5655, 0x5857, 0x5A59, 0x6463, |
| 362 | 0x6665, 0x6867, 0x6A69, 0x7473, 0x7675, 0x7877, 0x7A79, 0x8483, |
| 363 | 0x8685, 0x8887, 0x8A89, 0x9392, 0x9594, 0x9796, 0x9998, 0xA29A, |
| 364 | 0xA4A3, 0xA6A5, 0xA8A7, 0xAAA9, 0xB3B2, 0xB5B4, 0xB7B6, 0xB9B8, |
| 365 | 0xC2BA, 0xC4C3, 0xC6C5, 0xC8C7, 0xCAC9, 0xD3D2, 0xD5D4, 0xD7D6, |
| 366 | 0xD9D8, 0xE1DA, 0xE3E2, 0xE5E4, 0xE7E6, 0xE9E8, 0xF1EA, 0xF3F2, |
| 367 | 0xF5F4, 0xF7F6, 0xF9F8, 0xFFFA, |
| 368 | 0xC4FF, 0xB500, 0x0011, 0x0102, 0x0402, 0x0304, 0x0704, 0x0405, |
| 369 | 0x0004, 0x0201, 0x0077, 0x0201, 0x1103, 0x0504, 0x3121, 0x1206, |
| 370 | 0x5141, 0x6107, 0x1371, 0x3222, 0x0881, 0x4214, 0xA191, 0xC1B1, |
| 371 | 0x2309, 0x5233, 0x15F0, 0x7262, 0x0AD1, 0x2416, 0xE134, 0xF125, |
| 372 | 0x1817, 0x1A19, 0x2726, 0x2928, 0x352A, 0x3736, 0x3938, 0x433A, |
| 373 | 0x4544, 0x4746, 0x4948, 0x534A, 0x5554, 0x5756, 0x5958, 0x635A, |
| 374 | 0x6564, 0x6766, 0x6968, 0x736A, 0x7574, 0x7776, 0x7978, 0x827A, |
| 375 | 0x8483, 0x8685, 0x8887, 0x8A89, 0x9392, 0x9594, 0x9796, 0x9998, |
| 376 | 0xA29A, 0xA4A3, 0xA6A5, 0xA8A7, 0xAAA9, 0xB3B2, 0xB5B4, 0xB7B6, |
| 377 | 0xB9B8, 0xC2BA, 0xC4C3, 0xC6C5, 0xC8C7, 0xCAC9, 0xD3D2, 0xD5D4, |
| 378 | 0xD7D6, 0xD9D8, 0xE2DA, 0xE4E3, 0xE6E5, 0xE8E7, 0xEAE9, 0xF3F2, |
| 379 | 0xF5F4, 0xF7F6, 0xF9F8, 0xFFFA, |
| 380 | 0xC4FF, 0x1F00, 0x0000, 0x0501, 0x0101, 0x0101, 0x0101, 0x0000, |
| 381 | 0x0000, 0x0000, 0x0000, 0x0201, 0x0403, 0x0605, 0x0807, 0x0A09, |
| 382 | 0xFF0B, |
| 383 | 0xC4FF, 0x1F00, 0x0001, 0x0103, 0x0101, 0x0101, 0x0101, 0x0101, |
| 384 | 0x0000, 0x0000, 0x0000, 0x0201, 0x0403, 0x0605, 0x0807, 0x0A09, |
| 385 | 0xFF0B |
| 386 | }; |
| 387 | |
| 388 | *length = ARRAY_SIZE(tables); |
| 389 | return tables; |
| 390 | } |
| 391 | |
| 392 | /****************************************************************************/ |
| 393 | /* MCHIP low-level functions */ |
| 394 | /****************************************************************************/ |
| 395 | |
| 396 | /* returns the horizontal capture size */ |
| 397 | static inline int mchip_hsize(void) |
| 398 | { |
| 399 | return meye.params.subsample ? 320 : 640; |
| 400 | } |
| 401 | |
| 402 | /* returns the vertical capture size */ |
| 403 | static inline int mchip_vsize(void) |
| 404 | { |
| 405 | return meye.params.subsample ? 240 : 480; |
| 406 | } |
| 407 | |
| 408 | /* waits for a register to be available */ |
| 409 | static void mchip_sync(int reg) |
| 410 | { |
| 411 | u32 status; |
| 412 | int i; |
| 413 | |
| 414 | if (reg == MCHIP_MM_FIFO_DATA) { |
| 415 | for (i = 0; i < MCHIP_REG_TIMEOUT; i++) { |
| 416 | status = readl(meye.mchip_mmregs + |
| 417 | MCHIP_MM_FIFO_STATUS); |
| 418 | if (!(status & MCHIP_MM_FIFO_WAIT)) { |
| 419 | printk(KERN_WARNING "meye: fifo not ready\n"); |
| 420 | return; |
| 421 | } |
| 422 | if (status & MCHIP_MM_FIFO_READY) |
| 423 | return; |
| 424 | udelay(1); |
| 425 | } |
| 426 | } else if (reg > 0x80) { |
| 427 | u32 mask = (reg < 0x100) ? MCHIP_HIC_STATUS_MCC_RDY |
| 428 | : MCHIP_HIC_STATUS_VRJ_RDY; |
| 429 | for (i = 0; i < MCHIP_REG_TIMEOUT; i++) { |
| 430 | status = readl(meye.mchip_mmregs + MCHIP_HIC_STATUS); |
| 431 | if (status & mask) |
| 432 | return; |
| 433 | udelay(1); |
| 434 | } |
| 435 | } else |
| 436 | return; |
| 437 | printk(KERN_WARNING |
| 438 | "meye: mchip_sync() timeout on reg 0x%x status=0x%x\n", |
| 439 | reg, status); |
| 440 | } |
| 441 | |
| 442 | /* sets a value into the register */ |
| 443 | static inline void mchip_set(int reg, u32 v) |
| 444 | { |
| 445 | mchip_sync(reg); |
| 446 | writel(v, meye.mchip_mmregs + reg); |
| 447 | } |
| 448 | |
| 449 | /* get the register value */ |
| 450 | static inline u32 mchip_read(int reg) |
| 451 | { |
| 452 | mchip_sync(reg); |
| 453 | return readl(meye.mchip_mmregs + reg); |
| 454 | } |
| 455 | |
| 456 | /* wait for a register to become a particular value */ |
| 457 | static inline int mchip_delay(u32 reg, u32 v) |
| 458 | { |
| 459 | int n = 10; |
| 460 | while (--n && mchip_read(reg) != v) |
| 461 | udelay(1); |
| 462 | return n; |
| 463 | } |
| 464 | |
| 465 | /* setup subsampling */ |
| 466 | static void mchip_subsample(void) |
| 467 | { |
| 468 | mchip_set(MCHIP_MCC_R_SAMPLING, meye.params.subsample); |
| 469 | mchip_set(MCHIP_MCC_R_XRANGE, mchip_hsize()); |
| 470 | mchip_set(MCHIP_MCC_R_YRANGE, mchip_vsize()); |
| 471 | mchip_set(MCHIP_MCC_B_XRANGE, mchip_hsize()); |
| 472 | mchip_set(MCHIP_MCC_B_YRANGE, mchip_vsize()); |
| 473 | mchip_delay(MCHIP_HIC_STATUS, MCHIP_HIC_STATUS_IDLE); |
| 474 | } |
| 475 | |
| 476 | /* set the framerate into the mchip */ |
| 477 | static void mchip_set_framerate(void) |
| 478 | { |
| 479 | mchip_set(MCHIP_HIC_S_RATE, meye.params.framerate); |
| 480 | } |
| 481 | |
| 482 | /* load some huffman and quantisation tables into the VRJ chip ready |
| 483 | for JPEG compression */ |
| 484 | static void mchip_load_tables(void) |
| 485 | { |
| 486 | int i; |
| 487 | int length; |
| 488 | u16 *tables; |
| 489 | |
| 490 | tables = jpeg_huffman_tables(&length); |
| 491 | for (i = 0; i < length; i++) |
| 492 | writel(tables[i], meye.mchip_mmregs + MCHIP_VRJ_TABLE_DATA); |
| 493 | |
| 494 | tables = jpeg_quantisation_tables(&length, meye.params.quality); |
| 495 | for (i = 0; i < length; i++) |
| 496 | writel(tables[i], meye.mchip_mmregs + MCHIP_VRJ_TABLE_DATA); |
| 497 | } |
| 498 | |
| 499 | /* setup the VRJ parameters in the chip */ |
| 500 | static void mchip_vrj_setup(u8 mode) |
| 501 | { |
| 502 | mchip_set(MCHIP_VRJ_BUS_MODE, 5); |
| 503 | mchip_set(MCHIP_VRJ_SIGNAL_ACTIVE_LEVEL, 0x1f); |
| 504 | mchip_set(MCHIP_VRJ_PDAT_USE, 1); |
| 505 | mchip_set(MCHIP_VRJ_IRQ_FLAG, 0xa0); |
| 506 | mchip_set(MCHIP_VRJ_MODE_SPECIFY, mode); |
| 507 | mchip_set(MCHIP_VRJ_NUM_LINES, mchip_vsize()); |
| 508 | mchip_set(MCHIP_VRJ_NUM_PIXELS, mchip_hsize()); |
| 509 | mchip_set(MCHIP_VRJ_NUM_COMPONENTS, 0x1b); |
| 510 | mchip_set(MCHIP_VRJ_LIMIT_COMPRESSED_LO, 0xFFFF); |
| 511 | mchip_set(MCHIP_VRJ_LIMIT_COMPRESSED_HI, 0xFFFF); |
| 512 | mchip_set(MCHIP_VRJ_COMP_DATA_FORMAT, 0xC); |
| 513 | mchip_set(MCHIP_VRJ_RESTART_INTERVAL, 0); |
| 514 | mchip_set(MCHIP_VRJ_SOF1, 0x601); |
| 515 | mchip_set(MCHIP_VRJ_SOF2, 0x1502); |
| 516 | mchip_set(MCHIP_VRJ_SOF3, 0x1503); |
| 517 | mchip_set(MCHIP_VRJ_SOF4, 0x1596); |
| 518 | mchip_set(MCHIP_VRJ_SOS, 0x0ed0); |
| 519 | |
| 520 | mchip_load_tables(); |
| 521 | } |
| 522 | |
| 523 | /* sets the DMA parameters into the chip */ |
| 524 | static void mchip_dma_setup(dma_addr_t dma_addr) |
| 525 | { |
| 526 | int i; |
| 527 | |
| 528 | mchip_set(MCHIP_MM_PT_ADDR, (u32)dma_addr); |
| 529 | for (i = 0; i < 4; i++) |
| 530 | mchip_set(MCHIP_MM_FIR(i), 0); |
| 531 | meye.mchip_fnum = 0; |
| 532 | } |
| 533 | |
| 534 | /* setup for DMA transfers - also zeros the framebuffer */ |
| 535 | static int mchip_dma_alloc(void) |
| 536 | { |
| 537 | if (!meye.mchip_dmahandle) |
| 538 | if (ptable_alloc()) |
| 539 | return -1; |
| 540 | return 0; |
| 541 | } |
| 542 | |
| 543 | /* frees the DMA buffer */ |
| 544 | static void mchip_dma_free(void) |
| 545 | { |
| 546 | if (meye.mchip_dmahandle) { |
| 547 | mchip_dma_setup(0); |
| 548 | ptable_free(); |
| 549 | } |
| 550 | } |
| 551 | |
| 552 | /* stop any existing HIC action and wait for any dma to complete then |
| 553 | reset the dma engine */ |
| 554 | static void mchip_hic_stop(void) |
| 555 | { |
| 556 | int i, j; |
| 557 | |
| 558 | meye.mchip_mode = MCHIP_HIC_MODE_NOOP; |
| 559 | if (!(mchip_read(MCHIP_HIC_STATUS) & MCHIP_HIC_STATUS_BUSY)) |
| 560 | return; |
| 561 | for (i = 0; i < 20; ++i) { |
| 562 | mchip_set(MCHIP_HIC_CMD, MCHIP_HIC_CMD_STOP); |
| 563 | mchip_delay(MCHIP_HIC_CMD, 0); |
| 564 | for (j = 0; j < 100; ++j) { |
| 565 | if (mchip_delay(MCHIP_HIC_STATUS, |
| 566 | MCHIP_HIC_STATUS_IDLE)) |
| 567 | return; |
| 568 | msleep(1); |
| 569 | } |
| 570 | printk(KERN_ERR "meye: need to reset HIC!\n"); |
| 571 | |
| 572 | mchip_set(MCHIP_HIC_CTL, MCHIP_HIC_CTL_SOFT_RESET); |
| 573 | msleep(250); |
| 574 | } |
| 575 | printk(KERN_ERR "meye: resetting HIC hanged!\n"); |
| 576 | } |
| 577 | |
| 578 | /****************************************************************************/ |
| 579 | /* MCHIP frame processing functions */ |
| 580 | /****************************************************************************/ |
| 581 | |
| 582 | /* get the next ready frame from the dma engine */ |
| 583 | static u32 mchip_get_frame(void) |
| 584 | { |
| 585 | u32 v; |
| 586 | |
| 587 | v = mchip_read(MCHIP_MM_FIR(meye.mchip_fnum)); |
| 588 | return v; |
| 589 | } |
| 590 | |
| 591 | /* frees the current frame from the dma engine */ |
| 592 | static void mchip_free_frame(void) |
| 593 | { |
| 594 | mchip_set(MCHIP_MM_FIR(meye.mchip_fnum), 0); |
| 595 | meye.mchip_fnum++; |
| 596 | meye.mchip_fnum %= 4; |
| 597 | } |
| 598 | |
| 599 | /* read one frame from the framebuffer assuming it was captured using |
| 600 | a uncompressed transfer */ |
| 601 | static void mchip_cont_read_frame(u32 v, u8 *buf, int size) |
| 602 | { |
| 603 | int pt_id; |
| 604 | |
| 605 | pt_id = (v >> 17) & 0x3FF; |
| 606 | |
| 607 | ptable_copy(buf, pt_id, size, MCHIP_NB_PAGES); |
| 608 | } |
| 609 | |
| 610 | /* read a compressed frame from the framebuffer */ |
| 611 | static int mchip_comp_read_frame(u32 v, u8 *buf, int size) |
| 612 | { |
| 613 | int pt_start, pt_end, trailer; |
| 614 | int fsize; |
| 615 | int i; |
| 616 | |
| 617 | pt_start = (v >> 19) & 0xFF; |
| 618 | pt_end = (v >> 11) & 0xFF; |
| 619 | trailer = (v >> 1) & 0x3FF; |
| 620 | |
| 621 | if (pt_end < pt_start) |
| 622 | fsize = (MCHIP_NB_PAGES_MJPEG - pt_start) * PAGE_SIZE + |
| 623 | pt_end * PAGE_SIZE + trailer * 4; |
| 624 | else |
| 625 | fsize = (pt_end - pt_start) * PAGE_SIZE + trailer * 4; |
| 626 | |
| 627 | if (fsize > size) { |
| 628 | printk(KERN_WARNING "meye: oversized compressed frame %d\n", |
| 629 | fsize); |
| 630 | return -1; |
| 631 | } |
| 632 | |
| 633 | ptable_copy(buf, pt_start, fsize, MCHIP_NB_PAGES_MJPEG); |
| 634 | |
| 635 | #ifdef MEYE_JPEG_CORRECTION |
| 636 | |
| 637 | /* Some mchip generated jpeg frames are incorrect. In most |
| 638 | * (all ?) of those cases, the final EOI (0xff 0xd9) marker |
| 639 | * is not present at the end of the frame. |
| 640 | * |
| 641 | * Since adding the final marker is not enough to restore |
| 642 | * the jpeg integrity, we drop the frame. |
| 643 | */ |
| 644 | |
| 645 | for (i = fsize - 1; i > 0 && buf[i] == 0xff; i--) ; |
| 646 | |
| 647 | if (i < 2 || buf[i - 1] != 0xff || buf[i] != 0xd9) |
| 648 | return -1; |
| 649 | |
| 650 | #endif |
| 651 | |
| 652 | return fsize; |
| 653 | } |
| 654 | |
| 655 | /* take a picture into SDRAM */ |
| 656 | static void mchip_take_picture(void) |
| 657 | { |
| 658 | int i; |
| 659 | |
| 660 | mchip_hic_stop(); |
| 661 | mchip_subsample(); |
| 662 | mchip_dma_setup(meye.mchip_dmahandle); |
| 663 | |
| 664 | mchip_set(MCHIP_HIC_MODE, MCHIP_HIC_MODE_STILL_CAP); |
| 665 | mchip_set(MCHIP_HIC_CMD, MCHIP_HIC_CMD_START); |
| 666 | |
| 667 | mchip_delay(MCHIP_HIC_CMD, 0); |
| 668 | |
| 669 | for (i = 0; i < 100; ++i) { |
| 670 | if (mchip_delay(MCHIP_HIC_STATUS, MCHIP_HIC_STATUS_IDLE)) |
| 671 | break; |
| 672 | msleep(1); |
| 673 | } |
| 674 | } |
| 675 | |
| 676 | /* dma a previously taken picture into a buffer */ |
| 677 | static void mchip_get_picture(u8 *buf, int bufsize) |
| 678 | { |
| 679 | u32 v; |
| 680 | int i; |
| 681 | |
| 682 | mchip_set(MCHIP_HIC_MODE, MCHIP_HIC_MODE_STILL_OUT); |
| 683 | mchip_set(MCHIP_HIC_CMD, MCHIP_HIC_CMD_START); |
| 684 | |
| 685 | mchip_delay(MCHIP_HIC_CMD, 0); |
| 686 | for (i = 0; i < 100; ++i) { |
| 687 | if (mchip_delay(MCHIP_HIC_STATUS, MCHIP_HIC_STATUS_IDLE)) |
| 688 | break; |
| 689 | msleep(1); |
| 690 | } |
| 691 | for (i = 0; i < 4; ++i) { |
| 692 | v = mchip_get_frame(); |
| 693 | if (v & MCHIP_MM_FIR_RDY) { |
| 694 | mchip_cont_read_frame(v, buf, bufsize); |
| 695 | break; |
| 696 | } |
| 697 | mchip_free_frame(); |
| 698 | } |
| 699 | } |
| 700 | |
| 701 | /* start continuous dma capture */ |
| 702 | static void mchip_continuous_start(void) |
| 703 | { |
| 704 | mchip_hic_stop(); |
| 705 | mchip_subsample(); |
| 706 | mchip_set_framerate(); |
| 707 | mchip_dma_setup(meye.mchip_dmahandle); |
| 708 | |
| 709 | meye.mchip_mode = MCHIP_HIC_MODE_CONT_OUT; |
| 710 | |
| 711 | mchip_set(MCHIP_HIC_MODE, MCHIP_HIC_MODE_CONT_OUT); |
| 712 | mchip_set(MCHIP_HIC_CMD, MCHIP_HIC_CMD_START); |
| 713 | |
| 714 | mchip_delay(MCHIP_HIC_CMD, 0); |
| 715 | } |
| 716 | |
| 717 | /* compress one frame into a buffer */ |
| 718 | static int mchip_compress_frame(u8 *buf, int bufsize) |
| 719 | { |
| 720 | u32 v; |
| 721 | int len = -1, i; |
| 722 | |
| 723 | mchip_vrj_setup(0x3f); |
| 724 | udelay(50); |
| 725 | |
| 726 | mchip_set(MCHIP_HIC_MODE, MCHIP_HIC_MODE_STILL_COMP); |
| 727 | mchip_set(MCHIP_HIC_CMD, MCHIP_HIC_CMD_START); |
| 728 | |
| 729 | mchip_delay(MCHIP_HIC_CMD, 0); |
| 730 | for (i = 0; i < 100; ++i) { |
| 731 | if (mchip_delay(MCHIP_HIC_STATUS, MCHIP_HIC_STATUS_IDLE)) |
| 732 | break; |
| 733 | msleep(1); |
| 734 | } |
| 735 | |
| 736 | for (i = 0; i < 4; ++i) { |
| 737 | v = mchip_get_frame(); |
| 738 | if (v & MCHIP_MM_FIR_RDY) { |
| 739 | len = mchip_comp_read_frame(v, buf, bufsize); |
| 740 | break; |
| 741 | } |
| 742 | mchip_free_frame(); |
| 743 | } |
| 744 | return len; |
| 745 | } |
| 746 | |
| 747 | #if 0 |
| 748 | /* uncompress one image into a buffer */ |
| 749 | static int mchip_uncompress_frame(u8 *img, int imgsize, u8 *buf, int bufsize) |
| 750 | { |
| 751 | mchip_vrj_setup(0x3f); |
| 752 | udelay(50); |
| 753 | |
| 754 | mchip_set(MCHIP_HIC_MODE, MCHIP_HIC_MODE_STILL_DECOMP); |
| 755 | mchip_set(MCHIP_HIC_CMD, MCHIP_HIC_CMD_START); |
| 756 | |
| 757 | mchip_delay(MCHIP_HIC_CMD, 0); |
| 758 | |
| 759 | return mchip_comp_read_frame(buf, bufsize); |
| 760 | } |
| 761 | #endif |
| 762 | |
| 763 | /* start continuous compressed capture */ |
| 764 | static void mchip_cont_compression_start(void) |
| 765 | { |
| 766 | mchip_hic_stop(); |
| 767 | mchip_vrj_setup(0x3f); |
| 768 | mchip_subsample(); |
| 769 | mchip_set_framerate(); |
| 770 | mchip_dma_setup(meye.mchip_dmahandle); |
| 771 | |
| 772 | meye.mchip_mode = MCHIP_HIC_MODE_CONT_COMP; |
| 773 | |
| 774 | mchip_set(MCHIP_HIC_MODE, MCHIP_HIC_MODE_CONT_COMP); |
| 775 | mchip_set(MCHIP_HIC_CMD, MCHIP_HIC_CMD_START); |
| 776 | |
| 777 | mchip_delay(MCHIP_HIC_CMD, 0); |
| 778 | } |
| 779 | |
| 780 | /****************************************************************************/ |
| 781 | /* Interrupt handling */ |
| 782 | /****************************************************************************/ |
| 783 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 784 | static irqreturn_t meye_irq(int irq, void *dev_id) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 785 | { |
| 786 | u32 v; |
| 787 | int reqnr; |
Douglas Schilling Landgraf | ff699e6 | 2008-04-22 14:41:48 -0300 | [diff] [blame] | 788 | static int sequence; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 789 | |
| 790 | v = mchip_read(MCHIP_MM_INTA); |
| 791 | |
| 792 | if (meye.mchip_mode != MCHIP_HIC_MODE_CONT_OUT && |
| 793 | meye.mchip_mode != MCHIP_HIC_MODE_CONT_COMP) |
| 794 | return IRQ_NONE; |
| 795 | |
| 796 | again: |
| 797 | v = mchip_get_frame(); |
| 798 | if (!(v & MCHIP_MM_FIR_RDY)) |
| 799 | return IRQ_HANDLED; |
| 800 | |
| 801 | if (meye.mchip_mode == MCHIP_HIC_MODE_CONT_OUT) { |
| 802 | if (kfifo_get(meye.grabq, (unsigned char *)&reqnr, |
| 803 | sizeof(int)) != sizeof(int)) { |
| 804 | mchip_free_frame(); |
| 805 | return IRQ_HANDLED; |
| 806 | } |
| 807 | mchip_cont_read_frame(v, meye.grab_fbuffer + gbufsize * reqnr, |
| 808 | mchip_hsize() * mchip_vsize() * 2); |
| 809 | meye.grab_buffer[reqnr].size = mchip_hsize() * mchip_vsize() * 2; |
| 810 | meye.grab_buffer[reqnr].state = MEYE_BUF_DONE; |
| 811 | do_gettimeofday(&meye.grab_buffer[reqnr].timestamp); |
| 812 | meye.grab_buffer[reqnr].sequence = sequence++; |
| 813 | kfifo_put(meye.doneq, (unsigned char *)&reqnr, sizeof(int)); |
| 814 | wake_up_interruptible(&meye.proc_list); |
| 815 | } else { |
| 816 | int size; |
| 817 | size = mchip_comp_read_frame(v, meye.grab_temp, gbufsize); |
| 818 | if (size == -1) { |
| 819 | mchip_free_frame(); |
| 820 | goto again; |
| 821 | } |
| 822 | if (kfifo_get(meye.grabq, (unsigned char *)&reqnr, |
| 823 | sizeof(int)) != sizeof(int)) { |
| 824 | mchip_free_frame(); |
| 825 | goto again; |
| 826 | } |
| 827 | memcpy(meye.grab_fbuffer + gbufsize * reqnr, meye.grab_temp, |
| 828 | size); |
| 829 | meye.grab_buffer[reqnr].size = size; |
| 830 | meye.grab_buffer[reqnr].state = MEYE_BUF_DONE; |
| 831 | do_gettimeofday(&meye.grab_buffer[reqnr].timestamp); |
| 832 | meye.grab_buffer[reqnr].sequence = sequence++; |
| 833 | kfifo_put(meye.doneq, (unsigned char *)&reqnr, sizeof(int)); |
| 834 | wake_up_interruptible(&meye.proc_list); |
| 835 | } |
| 836 | mchip_free_frame(); |
| 837 | goto again; |
| 838 | } |
| 839 | |
| 840 | /****************************************************************************/ |
| 841 | /* video4linux integration */ |
| 842 | /****************************************************************************/ |
| 843 | |
| 844 | static int meye_open(struct inode *inode, struct file *file) |
| 845 | { |
Hans Verkuil | 7d43cd5 | 2008-08-23 05:31:47 -0300 | [diff] [blame] | 846 | int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 847 | |
Hans Verkuil | 7d43cd5 | 2008-08-23 05:31:47 -0300 | [diff] [blame] | 848 | if (test_and_set_bit(0, &meye.in_use)) |
| 849 | return -EBUSY; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 850 | |
| 851 | mchip_hic_stop(); |
| 852 | |
| 853 | if (mchip_dma_alloc()) { |
| 854 | printk(KERN_ERR "meye: mchip framebuffer allocation failed\n"); |
Hans Verkuil | 7d43cd5 | 2008-08-23 05:31:47 -0300 | [diff] [blame] | 855 | clear_bit(0, &meye.in_use); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 856 | return -ENOBUFS; |
| 857 | } |
| 858 | |
| 859 | for (i = 0; i < MEYE_MAX_BUFNBRS; i++) |
| 860 | meye.grab_buffer[i].state = MEYE_BUF_UNUSED; |
| 861 | kfifo_reset(meye.grabq); |
| 862 | kfifo_reset(meye.doneq); |
| 863 | return 0; |
| 864 | } |
| 865 | |
| 866 | static int meye_release(struct inode *inode, struct file *file) |
| 867 | { |
| 868 | mchip_hic_stop(); |
| 869 | mchip_dma_free(); |
Hans Verkuil | 7d43cd5 | 2008-08-23 05:31:47 -0300 | [diff] [blame] | 870 | clear_bit(0, &meye.in_use); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 871 | return 0; |
| 872 | } |
| 873 | |
Douglas Schilling Landgraf | 6ec6e0c | 2008-04-10 02:07:14 -0300 | [diff] [blame] | 874 | static int meyeioc_g_params(struct meye_params *p) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 875 | { |
Douglas Schilling Landgraf | 6ec6e0c | 2008-04-10 02:07:14 -0300 | [diff] [blame] | 876 | *p = meye.params; |
| 877 | return 0; |
| 878 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 879 | |
Douglas Schilling Landgraf | 6ec6e0c | 2008-04-10 02:07:14 -0300 | [diff] [blame] | 880 | static int meyeioc_s_params(struct meye_params *jp) |
| 881 | { |
| 882 | if (jp->subsample > 1) |
| 883 | return -EINVAL; |
| 884 | |
| 885 | if (jp->quality > 10) |
| 886 | return -EINVAL; |
| 887 | |
| 888 | if (jp->sharpness > 63 || jp->agc > 63 || jp->picture > 63) |
| 889 | return -EINVAL; |
| 890 | |
| 891 | if (jp->framerate > 31) |
| 892 | return -EINVAL; |
| 893 | |
| 894 | mutex_lock(&meye.lock); |
| 895 | |
| 896 | if (meye.params.subsample != jp->subsample || |
| 897 | meye.params.quality != jp->quality) |
| 898 | mchip_hic_stop(); /* need restart */ |
| 899 | |
| 900 | meye.params = *jp; |
| 901 | sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERASHARPNESS, |
| 902 | meye.params.sharpness); |
| 903 | sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERAAGC, |
| 904 | meye.params.agc); |
| 905 | sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERAPICTURE, |
| 906 | meye.params.picture); |
| 907 | mutex_unlock(&meye.lock); |
| 908 | |
| 909 | return 0; |
| 910 | } |
| 911 | |
| 912 | static int meyeioc_qbuf_capt(int *nb) |
| 913 | { |
| 914 | if (!meye.grab_fbuffer) |
| 915 | return -EINVAL; |
| 916 | |
| 917 | if (*nb >= gbuffers) |
| 918 | return -EINVAL; |
| 919 | |
| 920 | if (*nb < 0) { |
| 921 | /* stop capture */ |
| 922 | mchip_hic_stop(); |
| 923 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 924 | } |
| 925 | |
Douglas Schilling Landgraf | 6ec6e0c | 2008-04-10 02:07:14 -0300 | [diff] [blame] | 926 | if (meye.grab_buffer[*nb].state != MEYE_BUF_UNUSED) |
| 927 | return -EBUSY; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 928 | |
Douglas Schilling Landgraf | 6ec6e0c | 2008-04-10 02:07:14 -0300 | [diff] [blame] | 929 | mutex_lock(&meye.lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 930 | |
Douglas Schilling Landgraf | 6ec6e0c | 2008-04-10 02:07:14 -0300 | [diff] [blame] | 931 | if (meye.mchip_mode != MCHIP_HIC_MODE_CONT_COMP) |
| 932 | mchip_cont_compression_start(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 933 | |
Douglas Schilling Landgraf | 6ec6e0c | 2008-04-10 02:07:14 -0300 | [diff] [blame] | 934 | meye.grab_buffer[*nb].state = MEYE_BUF_USING; |
| 935 | kfifo_put(meye.grabq, (unsigned char *)nb, sizeof(int)); |
| 936 | mutex_unlock(&meye.lock); |
| 937 | |
| 938 | return 0; |
| 939 | } |
| 940 | |
| 941 | static int meyeioc_sync(struct file *file, void *fh, int *i) |
| 942 | { |
| 943 | int unused; |
| 944 | |
| 945 | if (*i < 0 || *i >= gbuffers) |
| 946 | return -EINVAL; |
| 947 | |
| 948 | mutex_lock(&meye.lock); |
| 949 | switch (meye.grab_buffer[*i].state) { |
| 950 | |
| 951 | case MEYE_BUF_UNUSED: |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 952 | mutex_unlock(&meye.lock); |
Douglas Schilling Landgraf | 6ec6e0c | 2008-04-10 02:07:14 -0300 | [diff] [blame] | 953 | return -EINVAL; |
| 954 | case MEYE_BUF_USING: |
| 955 | if (file->f_flags & O_NONBLOCK) { |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 956 | mutex_unlock(&meye.lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 957 | return -EAGAIN; |
| 958 | } |
| 959 | if (wait_event_interruptible(meye.proc_list, |
Douglas Schilling Landgraf | 6ec6e0c | 2008-04-10 02:07:14 -0300 | [diff] [blame] | 960 | (meye.grab_buffer[*i].state != MEYE_BUF_USING))) { |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 961 | mutex_unlock(&meye.lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 962 | return -EINTR; |
| 963 | } |
Douglas Schilling Landgraf | 6ec6e0c | 2008-04-10 02:07:14 -0300 | [diff] [blame] | 964 | /* fall through */ |
| 965 | case MEYE_BUF_DONE: |
| 966 | meye.grab_buffer[*i].state = MEYE_BUF_UNUSED; |
| 967 | kfifo_get(meye.doneq, (unsigned char *)&unused, sizeof(int)); |
| 968 | } |
| 969 | *i = meye.grab_buffer[*i].size; |
| 970 | mutex_unlock(&meye.lock); |
| 971 | return 0; |
| 972 | } |
| 973 | |
| 974 | static int meyeioc_stillcapt(void) |
| 975 | { |
| 976 | if (!meye.grab_fbuffer) |
| 977 | return -EINVAL; |
| 978 | |
| 979 | if (meye.grab_buffer[0].state != MEYE_BUF_UNUSED) |
| 980 | return -EBUSY; |
| 981 | |
| 982 | mutex_lock(&meye.lock); |
| 983 | meye.grab_buffer[0].state = MEYE_BUF_USING; |
| 984 | mchip_take_picture(); |
| 985 | |
| 986 | mchip_get_picture(meye.grab_fbuffer, |
| 987 | mchip_hsize() * mchip_vsize() * 2); |
| 988 | |
| 989 | meye.grab_buffer[0].state = MEYE_BUF_DONE; |
| 990 | mutex_unlock(&meye.lock); |
| 991 | |
| 992 | return 0; |
| 993 | } |
| 994 | |
| 995 | static int meyeioc_stilljcapt(int *len) |
| 996 | { |
| 997 | if (!meye.grab_fbuffer) |
| 998 | return -EINVAL; |
| 999 | |
| 1000 | if (meye.grab_buffer[0].state != MEYE_BUF_UNUSED) |
| 1001 | return -EBUSY; |
| 1002 | |
| 1003 | mutex_lock(&meye.lock); |
| 1004 | meye.grab_buffer[0].state = MEYE_BUF_USING; |
| 1005 | *len = -1; |
| 1006 | |
| 1007 | while (*len == -1) { |
| 1008 | mchip_take_picture(); |
| 1009 | *len = mchip_compress_frame(meye.grab_fbuffer, gbufsize); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1010 | } |
| 1011 | |
Douglas Schilling Landgraf | 6ec6e0c | 2008-04-10 02:07:14 -0300 | [diff] [blame] | 1012 | meye.grab_buffer[0].state = MEYE_BUF_DONE; |
| 1013 | mutex_unlock(&meye.lock); |
| 1014 | return 0; |
| 1015 | } |
| 1016 | |
| 1017 | static int vidioc_querycap(struct file *file, void *fh, |
| 1018 | struct v4l2_capability *cap) |
| 1019 | { |
| 1020 | memset(cap, 0, sizeof(*cap)); |
| 1021 | strcpy(cap->driver, "meye"); |
| 1022 | strcpy(cap->card, "meye"); |
| 1023 | sprintf(cap->bus_info, "PCI:%s", pci_name(meye.mchip_dev)); |
| 1024 | |
| 1025 | cap->version = (MEYE_DRIVER_MAJORVERSION << 8) + |
| 1026 | MEYE_DRIVER_MINORVERSION; |
| 1027 | |
| 1028 | cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | |
| 1029 | V4L2_CAP_STREAMING; |
| 1030 | |
| 1031 | return 0; |
| 1032 | } |
| 1033 | |
| 1034 | static int vidioc_enum_input(struct file *file, void *fh, struct v4l2_input *i) |
| 1035 | { |
| 1036 | if (i->index != 0) |
| 1037 | return -EINVAL; |
| 1038 | |
| 1039 | memset(i, 0, sizeof(*i)); |
| 1040 | i->index = 0; |
| 1041 | strcpy(i->name, "Camera"); |
| 1042 | i->type = V4L2_INPUT_TYPE_CAMERA; |
| 1043 | |
| 1044 | return 0; |
| 1045 | } |
| 1046 | |
| 1047 | static int vidioc_g_input(struct file *file, void *fh, unsigned int *i) |
| 1048 | { |
| 1049 | *i = 0; |
| 1050 | return 0; |
| 1051 | } |
| 1052 | |
| 1053 | static int vidioc_s_input(struct file *file, void *fh, unsigned int i) |
| 1054 | { |
| 1055 | if (i != 0) |
| 1056 | return -EINVAL; |
| 1057 | |
| 1058 | return 0; |
| 1059 | } |
| 1060 | |
| 1061 | static int vidioc_queryctrl(struct file *file, void *fh, |
| 1062 | struct v4l2_queryctrl *c) |
| 1063 | { |
| 1064 | switch (c->id) { |
| 1065 | |
| 1066 | case V4L2_CID_BRIGHTNESS: |
| 1067 | c->type = V4L2_CTRL_TYPE_INTEGER; |
| 1068 | strcpy(c->name, "Brightness"); |
| 1069 | c->minimum = 0; |
| 1070 | c->maximum = 63; |
| 1071 | c->step = 1; |
| 1072 | c->default_value = 32; |
| 1073 | c->flags = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1074 | break; |
Douglas Schilling Landgraf | 6ec6e0c | 2008-04-10 02:07:14 -0300 | [diff] [blame] | 1075 | case V4L2_CID_HUE: |
| 1076 | c->type = V4L2_CTRL_TYPE_INTEGER; |
| 1077 | strcpy(c->name, "Hue"); |
| 1078 | c->minimum = 0; |
| 1079 | c->maximum = 63; |
| 1080 | c->step = 1; |
| 1081 | c->default_value = 32; |
| 1082 | c->flags = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1083 | break; |
Douglas Schilling Landgraf | 6ec6e0c | 2008-04-10 02:07:14 -0300 | [diff] [blame] | 1084 | case V4L2_CID_CONTRAST: |
| 1085 | c->type = V4L2_CTRL_TYPE_INTEGER; |
| 1086 | strcpy(c->name, "Contrast"); |
| 1087 | c->minimum = 0; |
| 1088 | c->maximum = 63; |
| 1089 | c->step = 1; |
| 1090 | c->default_value = 32; |
| 1091 | c->flags = 0; |
| 1092 | break; |
| 1093 | case V4L2_CID_SATURATION: |
| 1094 | c->type = V4L2_CTRL_TYPE_INTEGER; |
| 1095 | strcpy(c->name, "Saturation"); |
| 1096 | c->minimum = 0; |
| 1097 | c->maximum = 63; |
| 1098 | c->step = 1; |
| 1099 | c->default_value = 32; |
| 1100 | c->flags = 0; |
| 1101 | break; |
| 1102 | case V4L2_CID_AGC: |
| 1103 | c->type = V4L2_CTRL_TYPE_INTEGER; |
| 1104 | strcpy(c->name, "Agc"); |
| 1105 | c->minimum = 0; |
| 1106 | c->maximum = 63; |
| 1107 | c->step = 1; |
| 1108 | c->default_value = 48; |
| 1109 | c->flags = 0; |
| 1110 | break; |
| 1111 | case V4L2_CID_MEYE_SHARPNESS: |
| 1112 | case V4L2_CID_SHARPNESS: |
| 1113 | c->type = V4L2_CTRL_TYPE_INTEGER; |
| 1114 | strcpy(c->name, "Sharpness"); |
| 1115 | c->minimum = 0; |
| 1116 | c->maximum = 63; |
| 1117 | c->step = 1; |
| 1118 | c->default_value = 32; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1119 | |
Douglas Schilling Landgraf | 6ec6e0c | 2008-04-10 02:07:14 -0300 | [diff] [blame] | 1120 | /* Continue to report legacy private SHARPNESS ctrl but |
| 1121 | * say it is disabled in preference to ctrl in the spec |
| 1122 | */ |
| 1123 | c->flags = (c->id == V4L2_CID_SHARPNESS) ? 0 : |
| 1124 | V4L2_CTRL_FLAG_DISABLED; |
| 1125 | break; |
| 1126 | case V4L2_CID_PICTURE: |
| 1127 | c->type = V4L2_CTRL_TYPE_INTEGER; |
| 1128 | strcpy(c->name, "Picture"); |
| 1129 | c->minimum = 0; |
| 1130 | c->maximum = 63; |
| 1131 | c->step = 1; |
| 1132 | c->default_value = 0; |
| 1133 | c->flags = 0; |
| 1134 | break; |
| 1135 | case V4L2_CID_JPEGQUAL: |
| 1136 | c->type = V4L2_CTRL_TYPE_INTEGER; |
| 1137 | strcpy(c->name, "JPEG quality"); |
| 1138 | c->minimum = 0; |
| 1139 | c->maximum = 10; |
| 1140 | c->step = 1; |
| 1141 | c->default_value = 8; |
| 1142 | c->flags = 0; |
| 1143 | break; |
| 1144 | case V4L2_CID_FRAMERATE: |
| 1145 | c->type = V4L2_CTRL_TYPE_INTEGER; |
| 1146 | strcpy(c->name, "Framerate"); |
| 1147 | c->minimum = 0; |
| 1148 | c->maximum = 31; |
| 1149 | c->step = 1; |
| 1150 | c->default_value = 0; |
| 1151 | c->flags = 0; |
| 1152 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1153 | default: |
Douglas Schilling Landgraf | 6ec6e0c | 2008-04-10 02:07:14 -0300 | [diff] [blame] | 1154 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1155 | } |
| 1156 | |
| 1157 | return 0; |
| 1158 | } |
| 1159 | |
Douglas Schilling Landgraf | 6ec6e0c | 2008-04-10 02:07:14 -0300 | [diff] [blame] | 1160 | static int vidioc_s_ctrl(struct file *file, void *fh, struct v4l2_control *c) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1161 | { |
Douglas Schilling Landgraf | 6ec6e0c | 2008-04-10 02:07:14 -0300 | [diff] [blame] | 1162 | mutex_lock(&meye.lock); |
| 1163 | switch (c->id) { |
| 1164 | case V4L2_CID_BRIGHTNESS: |
| 1165 | sony_pic_camera_command( |
| 1166 | SONY_PIC_COMMAND_SETCAMERABRIGHTNESS, c->value); |
| 1167 | meye.picture.brightness = c->value << 10; |
| 1168 | break; |
| 1169 | case V4L2_CID_HUE: |
| 1170 | sony_pic_camera_command( |
| 1171 | SONY_PIC_COMMAND_SETCAMERAHUE, c->value); |
| 1172 | meye.picture.hue = c->value << 10; |
| 1173 | break; |
| 1174 | case V4L2_CID_CONTRAST: |
| 1175 | sony_pic_camera_command( |
| 1176 | SONY_PIC_COMMAND_SETCAMERACONTRAST, c->value); |
| 1177 | meye.picture.contrast = c->value << 10; |
| 1178 | break; |
| 1179 | case V4L2_CID_SATURATION: |
| 1180 | sony_pic_camera_command( |
| 1181 | SONY_PIC_COMMAND_SETCAMERACOLOR, c->value); |
| 1182 | meye.picture.colour = c->value << 10; |
| 1183 | break; |
| 1184 | case V4L2_CID_AGC: |
| 1185 | sony_pic_camera_command( |
| 1186 | SONY_PIC_COMMAND_SETCAMERAAGC, c->value); |
| 1187 | meye.params.agc = c->value; |
| 1188 | break; |
| 1189 | case V4L2_CID_SHARPNESS: |
| 1190 | case V4L2_CID_MEYE_SHARPNESS: |
| 1191 | sony_pic_camera_command( |
| 1192 | SONY_PIC_COMMAND_SETCAMERASHARPNESS, c->value); |
| 1193 | meye.params.sharpness = c->value; |
| 1194 | break; |
| 1195 | case V4L2_CID_PICTURE: |
| 1196 | sony_pic_camera_command( |
| 1197 | SONY_PIC_COMMAND_SETCAMERAPICTURE, c->value); |
| 1198 | meye.params.picture = c->value; |
| 1199 | break; |
| 1200 | case V4L2_CID_JPEGQUAL: |
| 1201 | meye.params.quality = c->value; |
| 1202 | break; |
| 1203 | case V4L2_CID_FRAMERATE: |
| 1204 | meye.params.framerate = c->value; |
| 1205 | break; |
| 1206 | default: |
| 1207 | mutex_unlock(&meye.lock); |
| 1208 | return -EINVAL; |
| 1209 | } |
| 1210 | mutex_unlock(&meye.lock); |
| 1211 | |
| 1212 | return 0; |
| 1213 | } |
| 1214 | |
| 1215 | static int vidioc_g_ctrl(struct file *file, void *fh, struct v4l2_control *c) |
| 1216 | { |
| 1217 | mutex_lock(&meye.lock); |
| 1218 | switch (c->id) { |
| 1219 | case V4L2_CID_BRIGHTNESS: |
| 1220 | c->value = meye.picture.brightness >> 10; |
| 1221 | break; |
| 1222 | case V4L2_CID_HUE: |
| 1223 | c->value = meye.picture.hue >> 10; |
| 1224 | break; |
| 1225 | case V4L2_CID_CONTRAST: |
| 1226 | c->value = meye.picture.contrast >> 10; |
| 1227 | break; |
| 1228 | case V4L2_CID_SATURATION: |
| 1229 | c->value = meye.picture.colour >> 10; |
| 1230 | break; |
| 1231 | case V4L2_CID_AGC: |
| 1232 | c->value = meye.params.agc; |
| 1233 | break; |
| 1234 | case V4L2_CID_SHARPNESS: |
| 1235 | case V4L2_CID_MEYE_SHARPNESS: |
| 1236 | c->value = meye.params.sharpness; |
| 1237 | break; |
| 1238 | case V4L2_CID_PICTURE: |
| 1239 | c->value = meye.params.picture; |
| 1240 | break; |
| 1241 | case V4L2_CID_JPEGQUAL: |
| 1242 | c->value = meye.params.quality; |
| 1243 | break; |
| 1244 | case V4L2_CID_FRAMERATE: |
| 1245 | c->value = meye.params.framerate; |
| 1246 | break; |
| 1247 | default: |
| 1248 | mutex_unlock(&meye.lock); |
| 1249 | return -EINVAL; |
| 1250 | } |
| 1251 | mutex_unlock(&meye.lock); |
| 1252 | |
| 1253 | return 0; |
| 1254 | } |
| 1255 | |
Hans Verkuil | 78b526a | 2008-05-28 12:16:41 -0300 | [diff] [blame] | 1256 | static int vidioc_enum_fmt_vid_cap(struct file *file, void *fh, |
Douglas Schilling Landgraf | 6ec6e0c | 2008-04-10 02:07:14 -0300 | [diff] [blame] | 1257 | struct v4l2_fmtdesc *f) |
| 1258 | { |
| 1259 | if (f->index > 1) |
| 1260 | return -EINVAL; |
| 1261 | |
| 1262 | if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 1263 | return -EINVAL; |
| 1264 | |
| 1265 | if (f->index == 0) { |
| 1266 | /* standard YUV 422 capture */ |
| 1267 | memset(f, 0, sizeof(*f)); |
| 1268 | f->index = 0; |
| 1269 | f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
| 1270 | f->flags = 0; |
| 1271 | strcpy(f->description, "YUV422"); |
| 1272 | f->pixelformat = V4L2_PIX_FMT_YUYV; |
| 1273 | } else { |
| 1274 | /* compressed MJPEG capture */ |
| 1275 | memset(f, 0, sizeof(*f)); |
| 1276 | f->index = 1; |
| 1277 | f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
| 1278 | f->flags = V4L2_FMT_FLAG_COMPRESSED; |
| 1279 | strcpy(f->description, "MJPEG"); |
| 1280 | f->pixelformat = V4L2_PIX_FMT_MJPEG; |
| 1281 | } |
| 1282 | |
| 1283 | return 0; |
| 1284 | } |
| 1285 | |
Hans Verkuil | 78b526a | 2008-05-28 12:16:41 -0300 | [diff] [blame] | 1286 | static int vidioc_try_fmt_vid_cap(struct file *file, void *fh, |
Douglas Schilling Landgraf | 6ec6e0c | 2008-04-10 02:07:14 -0300 | [diff] [blame] | 1287 | struct v4l2_format *f) |
| 1288 | { |
| 1289 | if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 1290 | return -EINVAL; |
| 1291 | |
| 1292 | if (f->fmt.pix.pixelformat != V4L2_PIX_FMT_YUYV && |
| 1293 | f->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG) |
| 1294 | return -EINVAL; |
| 1295 | |
| 1296 | if (f->fmt.pix.field != V4L2_FIELD_ANY && |
| 1297 | f->fmt.pix.field != V4L2_FIELD_NONE) |
| 1298 | return -EINVAL; |
| 1299 | |
| 1300 | f->fmt.pix.field = V4L2_FIELD_NONE; |
| 1301 | |
| 1302 | if (f->fmt.pix.width <= 320) { |
| 1303 | f->fmt.pix.width = 320; |
| 1304 | f->fmt.pix.height = 240; |
| 1305 | } else { |
| 1306 | f->fmt.pix.width = 640; |
| 1307 | f->fmt.pix.height = 480; |
| 1308 | } |
| 1309 | |
| 1310 | f->fmt.pix.bytesperline = f->fmt.pix.width * 2; |
| 1311 | f->fmt.pix.sizeimage = f->fmt.pix.height * |
| 1312 | f->fmt.pix.bytesperline; |
| 1313 | f->fmt.pix.colorspace = 0; |
| 1314 | f->fmt.pix.priv = 0; |
| 1315 | |
| 1316 | return 0; |
| 1317 | } |
| 1318 | |
Hans Verkuil | 78b526a | 2008-05-28 12:16:41 -0300 | [diff] [blame] | 1319 | static int vidioc_g_fmt_vid_cap(struct file *file, void *fh, |
| 1320 | struct v4l2_format *f) |
Douglas Schilling Landgraf | 6ec6e0c | 2008-04-10 02:07:14 -0300 | [diff] [blame] | 1321 | { |
| 1322 | if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 1323 | return -EINVAL; |
| 1324 | |
| 1325 | memset(&f->fmt.pix, 0, sizeof(struct v4l2_pix_format)); |
| 1326 | f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
| 1327 | |
| 1328 | switch (meye.mchip_mode) { |
| 1329 | case MCHIP_HIC_MODE_CONT_OUT: |
| 1330 | default: |
| 1331 | f->fmt.pix.pixelformat = V4L2_PIX_FMT_YUYV; |
| 1332 | break; |
| 1333 | case MCHIP_HIC_MODE_CONT_COMP: |
| 1334 | f->fmt.pix.pixelformat = V4L2_PIX_FMT_MJPEG; |
| 1335 | break; |
| 1336 | } |
| 1337 | |
| 1338 | f->fmt.pix.field = V4L2_FIELD_NONE; |
| 1339 | f->fmt.pix.width = mchip_hsize(); |
| 1340 | f->fmt.pix.height = mchip_vsize(); |
| 1341 | f->fmt.pix.bytesperline = f->fmt.pix.width * 2; |
| 1342 | f->fmt.pix.sizeimage = f->fmt.pix.height * |
| 1343 | f->fmt.pix.bytesperline; |
| 1344 | f->fmt.pix.colorspace = 0; |
| 1345 | f->fmt.pix.priv = 0; |
| 1346 | |
| 1347 | return 0; |
| 1348 | } |
| 1349 | |
Hans Verkuil | 78b526a | 2008-05-28 12:16:41 -0300 | [diff] [blame] | 1350 | static int vidioc_s_fmt_vid_cap(struct file *file, void *fh, |
| 1351 | struct v4l2_format *f) |
Douglas Schilling Landgraf | 6ec6e0c | 2008-04-10 02:07:14 -0300 | [diff] [blame] | 1352 | { |
| 1353 | if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 1354 | return -EINVAL; |
| 1355 | |
| 1356 | if (f->fmt.pix.pixelformat != V4L2_PIX_FMT_YUYV && |
| 1357 | f->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG) |
| 1358 | return -EINVAL; |
| 1359 | |
| 1360 | if (f->fmt.pix.field != V4L2_FIELD_ANY && |
| 1361 | f->fmt.pix.field != V4L2_FIELD_NONE) |
| 1362 | return -EINVAL; |
| 1363 | |
| 1364 | f->fmt.pix.field = V4L2_FIELD_NONE; |
| 1365 | mutex_lock(&meye.lock); |
| 1366 | |
| 1367 | if (f->fmt.pix.width <= 320) { |
| 1368 | f->fmt.pix.width = 320; |
| 1369 | f->fmt.pix.height = 240; |
| 1370 | meye.params.subsample = 1; |
| 1371 | } else { |
| 1372 | f->fmt.pix.width = 640; |
| 1373 | f->fmt.pix.height = 480; |
| 1374 | meye.params.subsample = 0; |
| 1375 | } |
| 1376 | |
| 1377 | switch (f->fmt.pix.pixelformat) { |
| 1378 | case V4L2_PIX_FMT_YUYV: |
| 1379 | meye.mchip_mode = MCHIP_HIC_MODE_CONT_OUT; |
| 1380 | break; |
| 1381 | case V4L2_PIX_FMT_MJPEG: |
| 1382 | meye.mchip_mode = MCHIP_HIC_MODE_CONT_COMP; |
| 1383 | break; |
| 1384 | } |
| 1385 | |
| 1386 | mutex_unlock(&meye.lock); |
| 1387 | f->fmt.pix.bytesperline = f->fmt.pix.width * 2; |
| 1388 | f->fmt.pix.sizeimage = f->fmt.pix.height * |
| 1389 | f->fmt.pix.bytesperline; |
| 1390 | f->fmt.pix.colorspace = 0; |
| 1391 | f->fmt.pix.priv = 0; |
| 1392 | |
| 1393 | return 0; |
| 1394 | } |
| 1395 | |
| 1396 | static int vidioc_reqbufs(struct file *file, void *fh, |
| 1397 | struct v4l2_requestbuffers *req) |
| 1398 | { |
| 1399 | int i; |
| 1400 | |
| 1401 | if (req->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 1402 | return -EINVAL; |
| 1403 | |
| 1404 | if (req->memory != V4L2_MEMORY_MMAP) |
| 1405 | return -EINVAL; |
| 1406 | |
| 1407 | if (meye.grab_fbuffer && req->count == gbuffers) { |
| 1408 | /* already allocated, no modifications */ |
| 1409 | return 0; |
| 1410 | } |
| 1411 | |
| 1412 | mutex_lock(&meye.lock); |
| 1413 | if (meye.grab_fbuffer) { |
| 1414 | for (i = 0; i < gbuffers; i++) |
| 1415 | if (meye.vma_use_count[i]) { |
| 1416 | mutex_unlock(&meye.lock); |
| 1417 | return -EINVAL; |
| 1418 | } |
| 1419 | rvfree(meye.grab_fbuffer, gbuffers * gbufsize); |
| 1420 | meye.grab_fbuffer = NULL; |
| 1421 | } |
| 1422 | |
| 1423 | gbuffers = max(2, min((int)req->count, MEYE_MAX_BUFNBRS)); |
| 1424 | req->count = gbuffers; |
| 1425 | meye.grab_fbuffer = rvmalloc(gbuffers * gbufsize); |
| 1426 | |
| 1427 | if (!meye.grab_fbuffer) { |
| 1428 | printk(KERN_ERR "meye: v4l framebuffer allocation" |
| 1429 | " failed\n"); |
| 1430 | mutex_unlock(&meye.lock); |
| 1431 | return -ENOMEM; |
| 1432 | } |
| 1433 | |
| 1434 | for (i = 0; i < gbuffers; i++) |
| 1435 | meye.vma_use_count[i] = 0; |
| 1436 | |
| 1437 | mutex_unlock(&meye.lock); |
| 1438 | |
| 1439 | return 0; |
| 1440 | } |
| 1441 | |
| 1442 | static int vidioc_querybuf(struct file *file, void *fh, struct v4l2_buffer *buf) |
| 1443 | { |
| 1444 | int index = buf->index; |
| 1445 | |
| 1446 | if (index < 0 || index >= gbuffers) |
| 1447 | return -EINVAL; |
| 1448 | |
| 1449 | memset(buf, 0, sizeof(*buf)); |
| 1450 | |
| 1451 | buf->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
| 1452 | buf->index = index; |
| 1453 | buf->bytesused = meye.grab_buffer[index].size; |
| 1454 | buf->flags = V4L2_BUF_FLAG_MAPPED; |
| 1455 | |
| 1456 | if (meye.grab_buffer[index].state == MEYE_BUF_USING) |
| 1457 | buf->flags |= V4L2_BUF_FLAG_QUEUED; |
| 1458 | |
| 1459 | if (meye.grab_buffer[index].state == MEYE_BUF_DONE) |
| 1460 | buf->flags |= V4L2_BUF_FLAG_DONE; |
| 1461 | |
| 1462 | buf->field = V4L2_FIELD_NONE; |
| 1463 | buf->timestamp = meye.grab_buffer[index].timestamp; |
| 1464 | buf->sequence = meye.grab_buffer[index].sequence; |
| 1465 | buf->memory = V4L2_MEMORY_MMAP; |
| 1466 | buf->m.offset = index * gbufsize; |
| 1467 | buf->length = gbufsize; |
| 1468 | |
| 1469 | return 0; |
| 1470 | } |
| 1471 | |
| 1472 | static int vidioc_qbuf(struct file *file, void *fh, struct v4l2_buffer *buf) |
| 1473 | { |
| 1474 | if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 1475 | return -EINVAL; |
| 1476 | |
| 1477 | if (buf->memory != V4L2_MEMORY_MMAP) |
| 1478 | return -EINVAL; |
| 1479 | |
| 1480 | if (buf->index < 0 || buf->index >= gbuffers) |
| 1481 | return -EINVAL; |
| 1482 | |
| 1483 | if (meye.grab_buffer[buf->index].state != MEYE_BUF_UNUSED) |
| 1484 | return -EINVAL; |
| 1485 | |
| 1486 | mutex_lock(&meye.lock); |
| 1487 | buf->flags |= V4L2_BUF_FLAG_QUEUED; |
| 1488 | buf->flags &= ~V4L2_BUF_FLAG_DONE; |
| 1489 | meye.grab_buffer[buf->index].state = MEYE_BUF_USING; |
| 1490 | kfifo_put(meye.grabq, (unsigned char *)&buf->index, sizeof(int)); |
| 1491 | mutex_unlock(&meye.lock); |
| 1492 | |
| 1493 | return 0; |
| 1494 | } |
| 1495 | |
| 1496 | static int vidioc_dqbuf(struct file *file, void *fh, struct v4l2_buffer *buf) |
| 1497 | { |
| 1498 | int reqnr; |
| 1499 | |
| 1500 | if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| 1501 | return -EINVAL; |
| 1502 | |
| 1503 | if (buf->memory != V4L2_MEMORY_MMAP) |
| 1504 | return -EINVAL; |
| 1505 | |
| 1506 | mutex_lock(&meye.lock); |
| 1507 | |
| 1508 | if (kfifo_len(meye.doneq) == 0 && file->f_flags & O_NONBLOCK) { |
| 1509 | mutex_unlock(&meye.lock); |
| 1510 | return -EAGAIN; |
| 1511 | } |
| 1512 | |
| 1513 | if (wait_event_interruptible(meye.proc_list, |
| 1514 | kfifo_len(meye.doneq) != 0) < 0) { |
| 1515 | mutex_unlock(&meye.lock); |
| 1516 | return -EINTR; |
| 1517 | } |
| 1518 | |
| 1519 | if (!kfifo_get(meye.doneq, (unsigned char *)&reqnr, |
| 1520 | sizeof(int))) { |
| 1521 | mutex_unlock(&meye.lock); |
| 1522 | return -EBUSY; |
| 1523 | } |
| 1524 | |
| 1525 | if (meye.grab_buffer[reqnr].state != MEYE_BUF_DONE) { |
| 1526 | mutex_unlock(&meye.lock); |
| 1527 | return -EINVAL; |
| 1528 | } |
| 1529 | |
| 1530 | buf->index = reqnr; |
| 1531 | buf->bytesused = meye.grab_buffer[reqnr].size; |
| 1532 | buf->flags = V4L2_BUF_FLAG_MAPPED; |
| 1533 | buf->field = V4L2_FIELD_NONE; |
| 1534 | buf->timestamp = meye.grab_buffer[reqnr].timestamp; |
| 1535 | buf->sequence = meye.grab_buffer[reqnr].sequence; |
| 1536 | buf->memory = V4L2_MEMORY_MMAP; |
| 1537 | buf->m.offset = reqnr * gbufsize; |
| 1538 | buf->length = gbufsize; |
| 1539 | meye.grab_buffer[reqnr].state = MEYE_BUF_UNUSED; |
| 1540 | mutex_unlock(&meye.lock); |
| 1541 | |
| 1542 | return 0; |
| 1543 | } |
| 1544 | |
| 1545 | static int vidioc_streamon(struct file *file, void *fh, enum v4l2_buf_type i) |
| 1546 | { |
| 1547 | mutex_lock(&meye.lock); |
| 1548 | |
| 1549 | switch (meye.mchip_mode) { |
| 1550 | case MCHIP_HIC_MODE_CONT_OUT: |
| 1551 | mchip_continuous_start(); |
| 1552 | break; |
| 1553 | case MCHIP_HIC_MODE_CONT_COMP: |
| 1554 | mchip_cont_compression_start(); |
| 1555 | break; |
| 1556 | default: |
| 1557 | mutex_unlock(&meye.lock); |
| 1558 | return -EINVAL; |
| 1559 | } |
| 1560 | |
| 1561 | mutex_unlock(&meye.lock); |
| 1562 | |
| 1563 | return 0; |
| 1564 | } |
| 1565 | |
| 1566 | static int vidioc_streamoff(struct file *file, void *fh, enum v4l2_buf_type i) |
| 1567 | { |
| 1568 | mutex_lock(&meye.lock); |
| 1569 | mchip_hic_stop(); |
| 1570 | kfifo_reset(meye.grabq); |
| 1571 | kfifo_reset(meye.doneq); |
| 1572 | |
| 1573 | for (i = 0; i < MEYE_MAX_BUFNBRS; i++) |
| 1574 | meye.grab_buffer[i].state = MEYE_BUF_UNUSED; |
| 1575 | |
| 1576 | mutex_unlock(&meye.lock); |
| 1577 | return 0; |
| 1578 | } |
| 1579 | |
| 1580 | static int vidioc_default(struct file *file, void *fh, int cmd, void *arg) |
| 1581 | { |
| 1582 | switch (cmd) { |
| 1583 | case MEYEIOC_G_PARAMS: |
| 1584 | return meyeioc_g_params((struct meye_params *) arg); |
| 1585 | |
| 1586 | case MEYEIOC_S_PARAMS: |
| 1587 | return meyeioc_s_params((struct meye_params *) arg); |
| 1588 | |
| 1589 | case MEYEIOC_QBUF_CAPT: |
| 1590 | return meyeioc_qbuf_capt((int *) arg); |
| 1591 | |
| 1592 | case MEYEIOC_SYNC: |
| 1593 | return meyeioc_sync(file, fh, (int *) arg); |
| 1594 | |
| 1595 | case MEYEIOC_STILLCAPT: |
| 1596 | return meyeioc_stillcapt(); |
| 1597 | |
| 1598 | case MEYEIOC_STILLJCAPT: |
| 1599 | return meyeioc_stilljcapt((int *) arg); |
| 1600 | |
| 1601 | default: |
| 1602 | return -EINVAL; |
| 1603 | } |
| 1604 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1605 | } |
| 1606 | |
| 1607 | static unsigned int meye_poll(struct file *file, poll_table *wait) |
| 1608 | { |
| 1609 | unsigned int res = 0; |
| 1610 | |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 1611 | mutex_lock(&meye.lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1612 | poll_wait(file, &meye.proc_list, wait); |
| 1613 | if (kfifo_len(meye.doneq)) |
| 1614 | res = POLLIN | POLLRDNORM; |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 1615 | mutex_unlock(&meye.lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1616 | return res; |
| 1617 | } |
| 1618 | |
| 1619 | static void meye_vm_open(struct vm_area_struct *vma) |
| 1620 | { |
Mauro Carvalho Chehab | d614402 | 2006-05-19 13:08:09 -0300 | [diff] [blame] | 1621 | long idx = (long)vma->vm_private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1622 | meye.vma_use_count[idx]++; |
| 1623 | } |
| 1624 | |
| 1625 | static void meye_vm_close(struct vm_area_struct *vma) |
| 1626 | { |
Mauro Carvalho Chehab | d614402 | 2006-05-19 13:08:09 -0300 | [diff] [blame] | 1627 | long idx = (long)vma->vm_private_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1628 | meye.vma_use_count[idx]--; |
| 1629 | } |
| 1630 | |
| 1631 | static struct vm_operations_struct meye_vm_ops = { |
| 1632 | .open = meye_vm_open, |
| 1633 | .close = meye_vm_close, |
| 1634 | }; |
| 1635 | |
| 1636 | static int meye_mmap(struct file *file, struct vm_area_struct *vma) |
| 1637 | { |
| 1638 | unsigned long start = vma->vm_start; |
| 1639 | unsigned long size = vma->vm_end - vma->vm_start; |
| 1640 | unsigned long offset = vma->vm_pgoff << PAGE_SHIFT; |
| 1641 | unsigned long page, pos; |
| 1642 | |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 1643 | mutex_lock(&meye.lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1644 | if (size > gbuffers * gbufsize) { |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 1645 | mutex_unlock(&meye.lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1646 | return -EINVAL; |
| 1647 | } |
| 1648 | if (!meye.grab_fbuffer) { |
| 1649 | int i; |
| 1650 | |
| 1651 | /* lazy allocation */ |
| 1652 | meye.grab_fbuffer = rvmalloc(gbuffers*gbufsize); |
| 1653 | if (!meye.grab_fbuffer) { |
| 1654 | printk(KERN_ERR "meye: v4l framebuffer allocation failed\n"); |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 1655 | mutex_unlock(&meye.lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1656 | return -ENOMEM; |
| 1657 | } |
| 1658 | for (i = 0; i < gbuffers; i++) |
| 1659 | meye.vma_use_count[i] = 0; |
| 1660 | } |
| 1661 | pos = (unsigned long)meye.grab_fbuffer + offset; |
| 1662 | |
| 1663 | while (size > 0) { |
| 1664 | page = vmalloc_to_pfn((void *)pos); |
| 1665 | if (remap_pfn_range(vma, start, page, PAGE_SIZE, PAGE_SHARED)) { |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 1666 | mutex_unlock(&meye.lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1667 | return -EAGAIN; |
| 1668 | } |
| 1669 | start += PAGE_SIZE; |
| 1670 | pos += PAGE_SIZE; |
| 1671 | if (size > PAGE_SIZE) |
| 1672 | size -= PAGE_SIZE; |
| 1673 | else |
| 1674 | size = 0; |
| 1675 | } |
| 1676 | |
| 1677 | vma->vm_ops = &meye_vm_ops; |
| 1678 | vma->vm_flags &= ~VM_IO; /* not I/O memory */ |
| 1679 | vma->vm_flags |= VM_RESERVED; /* avoid to swap out this VMA */ |
| 1680 | vma->vm_private_data = (void *) (offset / gbufsize); |
| 1681 | meye_vm_open(vma); |
| 1682 | |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 1683 | mutex_unlock(&meye.lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1684 | return 0; |
| 1685 | } |
| 1686 | |
Arjan van de Ven | fa027c2 | 2007-02-12 00:55:33 -0800 | [diff] [blame] | 1687 | static const struct file_operations meye_fops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1688 | .owner = THIS_MODULE, |
| 1689 | .open = meye_open, |
| 1690 | .release = meye_release, |
| 1691 | .mmap = meye_mmap, |
Douglas Schilling Landgraf | 6ec6e0c | 2008-04-10 02:07:14 -0300 | [diff] [blame] | 1692 | .ioctl = video_ioctl2, |
Douglas Schilling Landgraf | 078ff79 | 2008-04-22 14:46:11 -0300 | [diff] [blame] | 1693 | #ifdef CONFIG_COMPAT |
Arnd Bergmann | 0d0fbf8 | 2006-01-09 15:24:57 -0200 | [diff] [blame] | 1694 | .compat_ioctl = v4l_compat_ioctl32, |
Douglas Schilling Landgraf | 078ff79 | 2008-04-22 14:46:11 -0300 | [diff] [blame] | 1695 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1696 | .poll = meye_poll, |
| 1697 | .llseek = no_llseek, |
| 1698 | }; |
| 1699 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1700 | static const struct v4l2_ioctl_ops meye_ioctl_ops = { |
Douglas Schilling Landgraf | 6ec6e0c | 2008-04-10 02:07:14 -0300 | [diff] [blame] | 1701 | .vidioc_querycap = vidioc_querycap, |
| 1702 | .vidioc_enum_input = vidioc_enum_input, |
| 1703 | .vidioc_g_input = vidioc_g_input, |
| 1704 | .vidioc_s_input = vidioc_s_input, |
| 1705 | .vidioc_queryctrl = vidioc_queryctrl, |
| 1706 | .vidioc_s_ctrl = vidioc_s_ctrl, |
| 1707 | .vidioc_g_ctrl = vidioc_g_ctrl, |
Hans Verkuil | 78b526a | 2008-05-28 12:16:41 -0300 | [diff] [blame] | 1708 | .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, |
| 1709 | .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, |
| 1710 | .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, |
| 1711 | .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, |
Douglas Schilling Landgraf | 6ec6e0c | 2008-04-10 02:07:14 -0300 | [diff] [blame] | 1712 | .vidioc_reqbufs = vidioc_reqbufs, |
| 1713 | .vidioc_querybuf = vidioc_querybuf, |
| 1714 | .vidioc_qbuf = vidioc_qbuf, |
| 1715 | .vidioc_dqbuf = vidioc_dqbuf, |
| 1716 | .vidioc_streamon = vidioc_streamon, |
| 1717 | .vidioc_streamoff = vidioc_streamoff, |
| 1718 | .vidioc_default = vidioc_default, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1719 | }; |
| 1720 | |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1721 | static struct video_device meye_template = { |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1722 | .name = "meye", |
Hans Verkuil | a399810 | 2008-07-21 02:57:38 -0300 | [diff] [blame] | 1723 | .fops = &meye_fops, |
| 1724 | .ioctl_ops = &meye_ioctl_ops, |
| 1725 | .release = video_device_release, |
| 1726 | .minor = -1, |
| 1727 | }; |
| 1728 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1729 | #ifdef CONFIG_PM |
Pavel Machek | a291068 | 2005-04-16 15:25:27 -0700 | [diff] [blame] | 1730 | static int meye_suspend(struct pci_dev *pdev, pm_message_t state) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1731 | { |
| 1732 | pci_save_state(pdev); |
| 1733 | meye.pm_mchip_mode = meye.mchip_mode; |
| 1734 | mchip_hic_stop(); |
| 1735 | mchip_set(MCHIP_MM_INTA, 0x0); |
| 1736 | return 0; |
| 1737 | } |
| 1738 | |
| 1739 | static int meye_resume(struct pci_dev *pdev) |
| 1740 | { |
| 1741 | pci_restore_state(pdev); |
| 1742 | pci_write_config_word(meye.mchip_dev, MCHIP_PCI_SOFTRESET_SET, 1); |
| 1743 | |
| 1744 | mchip_delay(MCHIP_HIC_CMD, 0); |
| 1745 | mchip_delay(MCHIP_HIC_STATUS, MCHIP_HIC_STATUS_IDLE); |
| 1746 | msleep(1); |
| 1747 | mchip_set(MCHIP_VRJ_SOFT_RESET, 1); |
| 1748 | msleep(1); |
| 1749 | mchip_set(MCHIP_MM_PCI_MODE, 5); |
| 1750 | msleep(1); |
| 1751 | mchip_set(MCHIP_MM_INTA, MCHIP_MM_INTA_HIC_1_MASK); |
| 1752 | |
| 1753 | switch (meye.pm_mchip_mode) { |
| 1754 | case MCHIP_HIC_MODE_CONT_OUT: |
| 1755 | mchip_continuous_start(); |
| 1756 | break; |
| 1757 | case MCHIP_HIC_MODE_CONT_COMP: |
| 1758 | mchip_cont_compression_start(); |
| 1759 | break; |
| 1760 | } |
| 1761 | return 0; |
| 1762 | } |
| 1763 | #endif |
| 1764 | |
| 1765 | static int __devinit meye_probe(struct pci_dev *pcidev, |
| 1766 | const struct pci_device_id *ent) |
| 1767 | { |
| 1768 | int ret = -EBUSY; |
| 1769 | unsigned long mchip_adr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1770 | |
| 1771 | if (meye.mchip_dev != NULL) { |
| 1772 | printk(KERN_ERR "meye: only one device allowed!\n"); |
| 1773 | goto outnotdev; |
| 1774 | } |
| 1775 | |
Henrik Kretzschmar | ef0e3c2 | 2008-08-22 17:13:05 -0300 | [diff] [blame] | 1776 | ret = -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1777 | meye.mchip_dev = pcidev; |
| 1778 | meye.video_dev = video_device_alloc(); |
| 1779 | if (!meye.video_dev) { |
| 1780 | printk(KERN_ERR "meye: video_device_alloc() failed!\n"); |
| 1781 | goto outnotdev; |
| 1782 | } |
| 1783 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1784 | meye.grab_temp = vmalloc(MCHIP_NB_PAGES_MJPEG * PAGE_SIZE); |
| 1785 | if (!meye.grab_temp) { |
| 1786 | printk(KERN_ERR "meye: grab buffer allocation failed\n"); |
| 1787 | goto outvmalloc; |
| 1788 | } |
| 1789 | |
| 1790 | spin_lock_init(&meye.grabq_lock); |
| 1791 | meye.grabq = kfifo_alloc(sizeof(int) * MEYE_MAX_BUFNBRS, GFP_KERNEL, |
| 1792 | &meye.grabq_lock); |
| 1793 | if (IS_ERR(meye.grabq)) { |
| 1794 | printk(KERN_ERR "meye: fifo allocation failed\n"); |
| 1795 | goto outkfifoalloc1; |
| 1796 | } |
| 1797 | spin_lock_init(&meye.doneq_lock); |
| 1798 | meye.doneq = kfifo_alloc(sizeof(int) * MEYE_MAX_BUFNBRS, GFP_KERNEL, |
| 1799 | &meye.doneq_lock); |
| 1800 | if (IS_ERR(meye.doneq)) { |
| 1801 | printk(KERN_ERR "meye: fifo allocation failed\n"); |
| 1802 | goto outkfifoalloc2; |
| 1803 | } |
| 1804 | |
| 1805 | memcpy(meye.video_dev, &meye_template, sizeof(meye_template)); |
Hans Verkuil | 5e85e73 | 2008-07-20 06:31:39 -0300 | [diff] [blame] | 1806 | meye.video_dev->parent = &meye.mchip_dev->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1807 | |
Mauro Carvalho Chehab | 5b5aff8 | 2008-09-03 17:11:52 -0300 | [diff] [blame] | 1808 | ret = -EIO; |
malattia@linux.it | cbefb76 | 2007-04-28 23:36:26 +0900 | [diff] [blame] | 1809 | if ((ret = sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERA, 1))) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1810 | printk(KERN_ERR "meye: unable to power on the camera\n"); |
| 1811 | printk(KERN_ERR "meye: did you enable the camera in " |
| 1812 | "sonypi using the module options ?\n"); |
| 1813 | goto outsonypienable; |
| 1814 | } |
| 1815 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1816 | if ((ret = pci_enable_device(meye.mchip_dev))) { |
| 1817 | printk(KERN_ERR "meye: pci_enable_device failed\n"); |
| 1818 | goto outenabledev; |
| 1819 | } |
| 1820 | |
| 1821 | mchip_adr = pci_resource_start(meye.mchip_dev,0); |
| 1822 | if (!mchip_adr) { |
| 1823 | printk(KERN_ERR "meye: mchip has no device base address\n"); |
| 1824 | goto outregions; |
| 1825 | } |
| 1826 | if (!request_mem_region(pci_resource_start(meye.mchip_dev, 0), |
| 1827 | pci_resource_len(meye.mchip_dev, 0), |
| 1828 | "meye")) { |
| 1829 | printk(KERN_ERR "meye: request_mem_region failed\n"); |
| 1830 | goto outregions; |
| 1831 | } |
| 1832 | meye.mchip_mmregs = ioremap(mchip_adr, MCHIP_MM_REGS); |
| 1833 | if (!meye.mchip_mmregs) { |
| 1834 | printk(KERN_ERR "meye: ioremap failed\n"); |
| 1835 | goto outremap; |
| 1836 | } |
| 1837 | |
| 1838 | meye.mchip_irq = pcidev->irq; |
| 1839 | if (request_irq(meye.mchip_irq, meye_irq, |
Thomas Gleixner | 8076fe3 | 2006-07-01 19:29:37 -0700 | [diff] [blame] | 1840 | IRQF_DISABLED | IRQF_SHARED, "meye", meye_irq)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1841 | printk(KERN_ERR "meye: request_irq failed\n"); |
| 1842 | goto outreqirq; |
| 1843 | } |
| 1844 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1845 | pci_write_config_byte(meye.mchip_dev, PCI_CACHE_LINE_SIZE, 8); |
| 1846 | pci_write_config_byte(meye.mchip_dev, PCI_LATENCY_TIMER, 64); |
| 1847 | |
| 1848 | pci_set_master(meye.mchip_dev); |
| 1849 | |
| 1850 | /* Ask the camera to perform a soft reset. */ |
| 1851 | pci_write_config_word(meye.mchip_dev, MCHIP_PCI_SOFTRESET_SET, 1); |
| 1852 | |
| 1853 | mchip_delay(MCHIP_HIC_CMD, 0); |
| 1854 | mchip_delay(MCHIP_HIC_STATUS, MCHIP_HIC_STATUS_IDLE); |
| 1855 | |
| 1856 | msleep(1); |
| 1857 | mchip_set(MCHIP_VRJ_SOFT_RESET, 1); |
| 1858 | |
| 1859 | msleep(1); |
| 1860 | mchip_set(MCHIP_MM_PCI_MODE, 5); |
| 1861 | |
| 1862 | msleep(1); |
| 1863 | mchip_set(MCHIP_MM_INTA, MCHIP_MM_INTA_HIC_1_MASK); |
| 1864 | |
| 1865 | if (video_register_device(meye.video_dev, VFL_TYPE_GRABBER, |
| 1866 | video_nr) < 0) { |
| 1867 | printk(KERN_ERR "meye: video_register_device failed\n"); |
| 1868 | goto outvideoreg; |
| 1869 | } |
| 1870 | |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 1871 | mutex_init(&meye.lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1872 | init_waitqueue_head(&meye.proc_list); |
| 1873 | meye.picture.depth = 16; |
| 1874 | meye.picture.palette = VIDEO_PALETTE_YUV422; |
| 1875 | meye.picture.brightness = 32 << 10; |
| 1876 | meye.picture.hue = 32 << 10; |
| 1877 | meye.picture.colour = 32 << 10; |
| 1878 | meye.picture.contrast = 32 << 10; |
| 1879 | meye.picture.whiteness = 0; |
| 1880 | meye.params.subsample = 0; |
| 1881 | meye.params.quality = 8; |
| 1882 | meye.params.sharpness = 32; |
| 1883 | meye.params.agc = 48; |
| 1884 | meye.params.picture = 0; |
| 1885 | meye.params.framerate = 0; |
| 1886 | |
malattia@linux.it | cbefb76 | 2007-04-28 23:36:26 +0900 | [diff] [blame] | 1887 | sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERABRIGHTNESS, 32); |
| 1888 | sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERAHUE, 32); |
| 1889 | sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERACOLOR, 32); |
| 1890 | sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERACONTRAST, 32); |
| 1891 | sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERASHARPNESS, 32); |
| 1892 | sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERAPICTURE, 0); |
| 1893 | sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERAAGC, 48); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1894 | |
| 1895 | printk(KERN_INFO "meye: Motion Eye Camera Driver v%s.\n", |
| 1896 | MEYE_DRIVER_VERSION); |
| 1897 | printk(KERN_INFO "meye: mchip KL5A72002 rev. %d, base %lx, irq %d\n", |
Auke Kok | 44c1013 | 2007-06-08 15:46:36 -0700 | [diff] [blame] | 1898 | meye.mchip_dev->revision, mchip_adr, meye.mchip_irq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1899 | |
| 1900 | return 0; |
| 1901 | |
| 1902 | outvideoreg: |
| 1903 | free_irq(meye.mchip_irq, meye_irq); |
| 1904 | outreqirq: |
| 1905 | iounmap(meye.mchip_mmregs); |
| 1906 | outremap: |
| 1907 | release_mem_region(pci_resource_start(meye.mchip_dev, 0), |
| 1908 | pci_resource_len(meye.mchip_dev, 0)); |
| 1909 | outregions: |
| 1910 | pci_disable_device(meye.mchip_dev); |
| 1911 | outenabledev: |
malattia@linux.it | cbefb76 | 2007-04-28 23:36:26 +0900 | [diff] [blame] | 1912 | sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERA, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1913 | outsonypienable: |
| 1914 | kfifo_free(meye.doneq); |
| 1915 | outkfifoalloc2: |
| 1916 | kfifo_free(meye.grabq); |
| 1917 | outkfifoalloc1: |
| 1918 | vfree(meye.grab_temp); |
| 1919 | outvmalloc: |
| 1920 | video_device_release(meye.video_dev); |
| 1921 | outnotdev: |
| 1922 | return ret; |
| 1923 | } |
| 1924 | |
| 1925 | static void __devexit meye_remove(struct pci_dev *pcidev) |
| 1926 | { |
| 1927 | video_unregister_device(meye.video_dev); |
| 1928 | |
| 1929 | mchip_hic_stop(); |
| 1930 | |
| 1931 | mchip_dma_free(); |
| 1932 | |
| 1933 | /* disable interrupts */ |
| 1934 | mchip_set(MCHIP_MM_INTA, 0x0); |
| 1935 | |
| 1936 | free_irq(meye.mchip_irq, meye_irq); |
| 1937 | |
| 1938 | iounmap(meye.mchip_mmregs); |
| 1939 | |
| 1940 | release_mem_region(pci_resource_start(meye.mchip_dev, 0), |
| 1941 | pci_resource_len(meye.mchip_dev, 0)); |
| 1942 | |
| 1943 | pci_disable_device(meye.mchip_dev); |
| 1944 | |
malattia@linux.it | cbefb76 | 2007-04-28 23:36:26 +0900 | [diff] [blame] | 1945 | sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERA, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1946 | |
| 1947 | kfifo_free(meye.doneq); |
| 1948 | kfifo_free(meye.grabq); |
| 1949 | |
| 1950 | vfree(meye.grab_temp); |
| 1951 | |
| 1952 | if (meye.grab_fbuffer) { |
| 1953 | rvfree(meye.grab_fbuffer, gbuffers*gbufsize); |
| 1954 | meye.grab_fbuffer = NULL; |
| 1955 | } |
| 1956 | |
| 1957 | printk(KERN_INFO "meye: removed\n"); |
| 1958 | } |
| 1959 | |
| 1960 | static struct pci_device_id meye_pci_tbl[] = { |
| 1961 | { PCI_VENDOR_ID_KAWASAKI, PCI_DEVICE_ID_MCHIP_KL5A72002, |
| 1962 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, |
| 1963 | { } |
| 1964 | }; |
| 1965 | |
| 1966 | MODULE_DEVICE_TABLE(pci, meye_pci_tbl); |
| 1967 | |
| 1968 | static struct pci_driver meye_driver = { |
| 1969 | .name = "meye", |
| 1970 | .id_table = meye_pci_tbl, |
| 1971 | .probe = meye_probe, |
| 1972 | .remove = __devexit_p(meye_remove), |
| 1973 | #ifdef CONFIG_PM |
| 1974 | .suspend = meye_suspend, |
| 1975 | .resume = meye_resume, |
| 1976 | #endif |
| 1977 | }; |
| 1978 | |
| 1979 | static int __init meye_init(void) |
| 1980 | { |
| 1981 | gbuffers = max(2, min((int)gbuffers, MEYE_MAX_BUFNBRS)); |
| 1982 | if (gbufsize < 0 || gbufsize > MEYE_MAX_BUFSIZE) |
| 1983 | gbufsize = MEYE_MAX_BUFSIZE; |
| 1984 | gbufsize = PAGE_ALIGN(gbufsize); |
Joe Perches | ac9bb7f | 2007-11-20 09:00:35 -0300 | [diff] [blame] | 1985 | printk(KERN_INFO "meye: using %d buffers with %dk (%dk total) " |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1986 | "for capture\n", |
| 1987 | gbuffers, |
| 1988 | gbufsize / 1024, gbuffers * gbufsize / 1024); |
| 1989 | return pci_register_driver(&meye_driver); |
| 1990 | } |
| 1991 | |
| 1992 | static void __exit meye_exit(void) |
| 1993 | { |
| 1994 | pci_unregister_driver(&meye_driver); |
| 1995 | } |
| 1996 | |
| 1997 | module_init(meye_init); |
| 1998 | module_exit(meye_exit); |