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PM / sleep: Asynchronous threads for suspend_noirq
[linux/fpc-iii.git] / drivers / media / pci / meye / meye.c
blob54d5c821007cb4280ff5a41e5fbda3bfd2f5484c
1 /*
2 * Motion Eye video4linux driver for Sony Vaio PictureBook
3 *
4 * Copyright (C) 2001-2004 Stelian Pop <stelian@popies.net>
5 *
6 * Copyright (C) 2001-2002 Alcôve <www.alcove.com>
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 */
29 #include <linux/module.h>
30 #include <linux/pci.h>
31 #include <linux/sched.h>
32 #include <linux/init.h>
33 #include <linux/gfp.h>
34 #include <linux/videodev2.h>
35 #include <media/v4l2-common.h>
36 #include <media/v4l2-device.h>
37 #include <media/v4l2-ioctl.h>
38 #include <media/v4l2-fh.h>
39 #include <media/v4l2-event.h>
40 #include <asm/uaccess.h>
41 #include <asm/io.h>
42 #include <linux/delay.h>
43 #include <linux/interrupt.h>
44 #include <linux/vmalloc.h>
45 #include <linux/dma-mapping.h>
46
47 #include "meye.h"
48 #include <linux/meye.h>
49
50 MODULE_AUTHOR("Stelian Pop <stelian@popies.net>");
51 MODULE_DESCRIPTION("v4l2 driver for the MotionEye camera");
52 MODULE_LICENSE("GPL");
53 MODULE_VERSION(MEYE_DRIVER_VERSION);
54
55 /* number of grab buffers */
56 static unsigned int gbuffers = 2;
57 module_param(gbuffers, int, 0444);
58 MODULE_PARM_DESC(gbuffers, "number of capture buffers, default is 2 (32 max)");
59
60 /* size of a grab buffer */
61 static unsigned int gbufsize = MEYE_MAX_BUFSIZE;
62 module_param(gbufsize, int, 0444);
63 MODULE_PARM_DESC(gbufsize, "size of the capture buffers, default is 614400"
64 " (will be rounded up to a page multiple)");
65
66 /* /dev/videoX registration number */
67 static int video_nr = -1;
68 module_param(video_nr, int, 0444);
69 MODULE_PARM_DESC(video_nr, "video device to register (0=/dev/video0, etc)");
70
71 /* driver structure - only one possible */
72 static struct meye meye;
73
74 /****************************************************************************/
75 /* Memory allocation routines (stolen from bttv-driver.c) */
76 /****************************************************************************/
77 static void *rvmalloc(unsigned long size)
78 {
79 void *mem;
80 unsigned long adr;
81
82 size = PAGE_ALIGN(size);
83 mem = vmalloc_32(size);
84 if (mem) {
85 memset(mem, 0, size);
86 adr = (unsigned long) mem;
87 while (size > 0) {
88 SetPageReserved(vmalloc_to_page((void *)adr));
89 adr += PAGE_SIZE;
90 size -= PAGE_SIZE;
91 }
92 }
93 return mem;
94 }
95
96 static void rvfree(void * mem, unsigned long size)
97 {
98 unsigned long adr;
99
100 if (mem) {
101 adr = (unsigned long) mem;
102 while ((long) size > 0) {
103 ClearPageReserved(vmalloc_to_page((void *)adr));
104 adr += PAGE_SIZE;
105 size -= PAGE_SIZE;
106 }
107 vfree(mem);
108 }
109 }
110
111 /*
112 * return a page table pointing to N pages of locked memory
113 *
114 * NOTE: The meye device expects DMA addresses on 32 bits, we build
115 * a table of 1024 entries = 4 bytes * 1024 = 4096 bytes.
116 */
117 static int ptable_alloc(void)
118 {
119 u32 *pt;
120 int i;
121
122 memset(meye.mchip_ptable, 0, sizeof(meye.mchip_ptable));
123
124 /* give only 32 bit DMA addresses */
125 if (dma_set_mask(&meye.mchip_dev->dev, DMA_BIT_MASK(32)))
126 return -1;
127
128 meye.mchip_ptable_toc = dma_alloc_coherent(&meye.mchip_dev->dev,
129 PAGE_SIZE,
130 &meye.mchip_dmahandle,
131 GFP_KERNEL);
132 if (!meye.mchip_ptable_toc) {
133 meye.mchip_dmahandle = 0;
134 return -1;
135 }
136
137 pt = meye.mchip_ptable_toc;
138 for (i = 0; i < MCHIP_NB_PAGES; i++) {
139 dma_addr_t dma;
140 meye.mchip_ptable[i] = dma_alloc_coherent(&meye.mchip_dev->dev,
141 PAGE_SIZE,
142 &dma,
143 GFP_KERNEL);
144 if (!meye.mchip_ptable[i]) {
145 int j;
146 pt = meye.mchip_ptable_toc;
147 for (j = 0; j < i; ++j) {
148 dma = (dma_addr_t) *pt;
149 dma_free_coherent(&meye.mchip_dev->dev,
150 PAGE_SIZE,
151 meye.mchip_ptable[j], dma);
152 pt++;
153 }
154 dma_free_coherent(&meye.mchip_dev->dev,
155 PAGE_SIZE,
156 meye.mchip_ptable_toc,
157 meye.mchip_dmahandle);
158 meye.mchip_ptable_toc = NULL;
159 meye.mchip_dmahandle = 0;
160 return -1;
161 }
162 *pt = (u32) dma;
163 pt++;
164 }
165 return 0;
166 }
167
168 static void ptable_free(void)
169 {
170 u32 *pt;
171 int i;
172
173 pt = meye.mchip_ptable_toc;
174 for (i = 0; i < MCHIP_NB_PAGES; i++) {
175 dma_addr_t dma = (dma_addr_t) *pt;
176 if (meye.mchip_ptable[i])
177 dma_free_coherent(&meye.mchip_dev->dev,
178 PAGE_SIZE,
179 meye.mchip_ptable[i], dma);
180 pt++;
181 }
182
183 if (meye.mchip_ptable_toc)
184 dma_free_coherent(&meye.mchip_dev->dev,
185 PAGE_SIZE,
186 meye.mchip_ptable_toc,
187 meye.mchip_dmahandle);
188
189 memset(meye.mchip_ptable, 0, sizeof(meye.mchip_ptable));
190 meye.mchip_ptable_toc = NULL;
191 meye.mchip_dmahandle = 0;
192 }
193
194 /* copy data from ptable into buf */
195 static void ptable_copy(u8 *buf, int start, int size, int pt_pages)
196 {
197 int i;
198
199 for (i = 0; i < (size / PAGE_SIZE) * PAGE_SIZE; i += PAGE_SIZE) {
200 memcpy(buf + i, meye.mchip_ptable[start++], PAGE_SIZE);
201 if (start >= pt_pages)
202 start = 0;
203 }
204 memcpy(buf + i, meye.mchip_ptable[start], size % PAGE_SIZE);
205 }
206
207 /****************************************************************************/
208 /* JPEG tables at different qualities to load into the VRJ chip */
209 /****************************************************************************/
210
211 /* return a set of quantisation tables based on a quality from 1 to 10 */
212 static u16 *jpeg_quantisation_tables(int *length, int quality)
213 {
214 static u16 jpeg_tables[][70] = { {
215 0xdbff, 0x4300, 0xff00, 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 0xdbff, 0x4300, 0xff01, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
221 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
222 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
223 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
224 0xffff, 0xffff, 0xffff,
225 },
226 {
227 0xdbff, 0x4300, 0x5000, 0x3c37, 0x3c46, 0x5032, 0x4146, 0x5a46,
228 0x5055, 0x785f, 0x82c8, 0x6e78, 0x786e, 0xaff5, 0x91b9, 0xffc8,
229 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
230 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
231 0xffff, 0xffff, 0xffff,
232 0xdbff, 0x4300, 0x5501, 0x5a5a, 0x6978, 0xeb78, 0x8282, 0xffeb,
233 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
234 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
235 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
236 0xffff, 0xffff, 0xffff,
237 },
238 {
239 0xdbff, 0x4300, 0x2800, 0x1e1c, 0x1e23, 0x2819, 0x2123, 0x2d23,
240 0x282b, 0x3c30, 0x4164, 0x373c, 0x3c37, 0x587b, 0x495d, 0x9164,
241 0x9980, 0x8f96, 0x8c80, 0xa08a, 0xe6b4, 0xa0c3, 0xdaaa, 0x8aad,
242 0xc88c, 0xcbff, 0xeeda, 0xfff5, 0xffff, 0xc19b, 0xffff, 0xfaff,
243 0xe6ff, 0xfffd, 0xfff8,
244 0xdbff, 0x4300, 0x2b01, 0x2d2d, 0x353c, 0x763c, 0x4141, 0xf876,
245 0x8ca5, 0xf8a5, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8,
246 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8,
247 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8,
248 0xf8f8, 0xf8f8, 0xfff8,
249 },
250 {
251 0xdbff, 0x4300, 0x1b00, 0x1412, 0x1417, 0x1b11, 0x1617, 0x1e17,
252 0x1b1c, 0x2820, 0x2b42, 0x2528, 0x2825, 0x3a51, 0x303d, 0x6042,
253 0x6555, 0x5f64, 0x5d55, 0x6a5b, 0x9978, 0x6a81, 0x9071, 0x5b73,
254 0x855d, 0x86b5, 0x9e90, 0xaba3, 0xabad, 0x8067, 0xc9bc, 0xa6ba,
255 0x99c7, 0xaba8, 0xffa4,
256 0xdbff, 0x4300, 0x1c01, 0x1e1e, 0x2328, 0x4e28, 0x2b2b, 0xa44e,
257 0x5d6e, 0xa46e, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4,
258 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4,
259 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4,
260 0xa4a4, 0xa4a4, 0xffa4,
261 },
262 {
263 0xdbff, 0x4300, 0x1400, 0x0f0e, 0x0f12, 0x140d, 0x1012, 0x1712,
264 0x1415, 0x1e18, 0x2132, 0x1c1e, 0x1e1c, 0x2c3d, 0x242e, 0x4932,
265 0x4c40, 0x474b, 0x4640, 0x5045, 0x735a, 0x5062, 0x6d55, 0x4556,
266 0x6446, 0x6588, 0x776d, 0x817b, 0x8182, 0x604e, 0x978d, 0x7d8c,
267 0x7396, 0x817e, 0xff7c,
268 0xdbff, 0x4300, 0x1501, 0x1717, 0x1a1e, 0x3b1e, 0x2121, 0x7c3b,
269 0x4653, 0x7c53, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c,
270 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c,
271 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c,
272 0x7c7c, 0x7c7c, 0xff7c,
273 },
274 {
275 0xdbff, 0x4300, 0x1000, 0x0c0b, 0x0c0e, 0x100a, 0x0d0e, 0x120e,
276 0x1011, 0x1813, 0x1a28, 0x1618, 0x1816, 0x2331, 0x1d25, 0x3a28,
277 0x3d33, 0x393c, 0x3833, 0x4037, 0x5c48, 0x404e, 0x5744, 0x3745,
278 0x5038, 0x516d, 0x5f57, 0x6762, 0x6768, 0x4d3e, 0x7971, 0x6470,
279 0x5c78, 0x6765, 0xff63,
280 0xdbff, 0x4300, 0x1101, 0x1212, 0x1518, 0x2f18, 0x1a1a, 0x632f,
281 0x3842, 0x6342, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363,
282 0x6363, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363,
283 0x6363, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363,
284 0x6363, 0x6363, 0xff63,
285 },
286 {
287 0xdbff, 0x4300, 0x0d00, 0x0a09, 0x0a0b, 0x0d08, 0x0a0b, 0x0e0b,
288 0x0d0e, 0x130f, 0x1520, 0x1213, 0x1312, 0x1c27, 0x171e, 0x2e20,
289 0x3129, 0x2e30, 0x2d29, 0x332c, 0x4a3a, 0x333e, 0x4636, 0x2c37,
290 0x402d, 0x4157, 0x4c46, 0x524e, 0x5253, 0x3e32, 0x615a, 0x505a,
291 0x4a60, 0x5251, 0xff4f,
292 0xdbff, 0x4300, 0x0e01, 0x0e0e, 0x1113, 0x2613, 0x1515, 0x4f26,
293 0x2d35, 0x4f35, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f,
294 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f,
295 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f,
296 0x4f4f, 0x4f4f, 0xff4f,
297 },
298 {
299 0xdbff, 0x4300, 0x0a00, 0x0707, 0x0708, 0x0a06, 0x0808, 0x0b08,
300 0x0a0a, 0x0e0b, 0x1018, 0x0d0e, 0x0e0d, 0x151d, 0x1116, 0x2318,
301 0x251f, 0x2224, 0x221f, 0x2621, 0x372b, 0x262f, 0x3429, 0x2129,
302 0x3022, 0x3141, 0x3934, 0x3e3b, 0x3e3e, 0x2e25, 0x4944, 0x3c43,
303 0x3748, 0x3e3d, 0xff3b,
304 0xdbff, 0x4300, 0x0a01, 0x0b0b, 0x0d0e, 0x1c0e, 0x1010, 0x3b1c,
305 0x2228, 0x3b28, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b,
306 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b,
307 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b,
308 0x3b3b, 0x3b3b, 0xff3b,
309 },
310 {
311 0xdbff, 0x4300, 0x0600, 0x0504, 0x0506, 0x0604, 0x0506, 0x0706,
312 0x0607, 0x0a08, 0x0a10, 0x090a, 0x0a09, 0x0e14, 0x0c0f, 0x1710,
313 0x1814, 0x1718, 0x1614, 0x1a16, 0x251d, 0x1a1f, 0x231b, 0x161c,
314 0x2016, 0x202c, 0x2623, 0x2927, 0x292a, 0x1f19, 0x302d, 0x282d,
315 0x2530, 0x2928, 0xff28,
316 0xdbff, 0x4300, 0x0701, 0x0707, 0x080a, 0x130a, 0x0a0a, 0x2813,
317 0x161a, 0x281a, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828,
318 0x2828, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828,
319 0x2828, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828,
320 0x2828, 0x2828, 0xff28,
321 },
322 {
323 0xdbff, 0x4300, 0x0300, 0x0202, 0x0203, 0x0302, 0x0303, 0x0403,
324 0x0303, 0x0504, 0x0508, 0x0405, 0x0504, 0x070a, 0x0607, 0x0c08,
325 0x0c0a, 0x0b0c, 0x0b0a, 0x0d0b, 0x120e, 0x0d10, 0x110e, 0x0b0e,
326 0x100b, 0x1016, 0x1311, 0x1514, 0x1515, 0x0f0c, 0x1817, 0x1416,
327 0x1218, 0x1514, 0xff14,
328 0xdbff, 0x4300, 0x0301, 0x0404, 0x0405, 0x0905, 0x0505, 0x1409,
329 0x0b0d, 0x140d, 0x1414, 0x1414, 0x1414, 0x1414, 0x1414, 0x1414,
330 0x1414, 0x1414, 0x1414, 0x1414, 0x1414, 0x1414, 0x1414, 0x1414,
331 0x1414, 0x1414, 0x1414, 0x1414, 0x1414, 0x1414, 0x1414, 0x1414,
332 0x1414, 0x1414, 0xff14,
333 },
334 {
335 0xdbff, 0x4300, 0x0100, 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 0xdbff, 0x4300, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101,
341 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101,
342 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101,
343 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101,
344 0x0101, 0x0101, 0xff01,
345 } };
346
347 if (quality < 0 || quality > 10) {
348 printk(KERN_WARNING
349 "meye: invalid quality level %d - using 8\n", quality);
350 quality = 8;
351 }
352
353 *length = ARRAY_SIZE(jpeg_tables[quality]);
354 return jpeg_tables[quality];
355 }
356
357 /* return a generic set of huffman tables */
358 static u16 *jpeg_huffman_tables(int *length)
359 {
360 static u16 tables[] = {
361 0xC4FF, 0xB500, 0x0010, 0x0102, 0x0303, 0x0402, 0x0503, 0x0405,
362 0x0004, 0x0100, 0x017D, 0x0302, 0x0400, 0x0511, 0x2112, 0x4131,
363 0x1306, 0x6151, 0x2207, 0x1471, 0x8132, 0xA191, 0x2308, 0xB142,
364 0x15C1, 0xD152, 0x24F0, 0x6233, 0x8272, 0x0A09, 0x1716, 0x1918,
365 0x251A, 0x2726, 0x2928, 0x342A, 0x3635, 0x3837, 0x3A39, 0x4443,
366 0x4645, 0x4847, 0x4A49, 0x5453, 0x5655, 0x5857, 0x5A59, 0x6463,
367 0x6665, 0x6867, 0x6A69, 0x7473, 0x7675, 0x7877, 0x7A79, 0x8483,
368 0x8685, 0x8887, 0x8A89, 0x9392, 0x9594, 0x9796, 0x9998, 0xA29A,
369 0xA4A3, 0xA6A5, 0xA8A7, 0xAAA9, 0xB3B2, 0xB5B4, 0xB7B6, 0xB9B8,
370 0xC2BA, 0xC4C3, 0xC6C5, 0xC8C7, 0xCAC9, 0xD3D2, 0xD5D4, 0xD7D6,
371 0xD9D8, 0xE1DA, 0xE3E2, 0xE5E4, 0xE7E6, 0xE9E8, 0xF1EA, 0xF3F2,
372 0xF5F4, 0xF7F6, 0xF9F8, 0xFFFA,
373 0xC4FF, 0xB500, 0x0011, 0x0102, 0x0402, 0x0304, 0x0704, 0x0405,
374 0x0004, 0x0201, 0x0077, 0x0201, 0x1103, 0x0504, 0x3121, 0x1206,
375 0x5141, 0x6107, 0x1371, 0x3222, 0x0881, 0x4214, 0xA191, 0xC1B1,
376 0x2309, 0x5233, 0x15F0, 0x7262, 0x0AD1, 0x2416, 0xE134, 0xF125,
377 0x1817, 0x1A19, 0x2726, 0x2928, 0x352A, 0x3736, 0x3938, 0x433A,
378 0x4544, 0x4746, 0x4948, 0x534A, 0x5554, 0x5756, 0x5958, 0x635A,
379 0x6564, 0x6766, 0x6968, 0x736A, 0x7574, 0x7776, 0x7978, 0x827A,
380 0x8483, 0x8685, 0x8887, 0x8A89, 0x9392, 0x9594, 0x9796, 0x9998,
381 0xA29A, 0xA4A3, 0xA6A5, 0xA8A7, 0xAAA9, 0xB3B2, 0xB5B4, 0xB7B6,
382 0xB9B8, 0xC2BA, 0xC4C3, 0xC6C5, 0xC8C7, 0xCAC9, 0xD3D2, 0xD5D4,
383 0xD7D6, 0xD9D8, 0xE2DA, 0xE4E3, 0xE6E5, 0xE8E7, 0xEAE9, 0xF3F2,
384 0xF5F4, 0xF7F6, 0xF9F8, 0xFFFA,
385 0xC4FF, 0x1F00, 0x0000, 0x0501, 0x0101, 0x0101, 0x0101, 0x0000,
386 0x0000, 0x0000, 0x0000, 0x0201, 0x0403, 0x0605, 0x0807, 0x0A09,
387 0xFF0B,
388 0xC4FF, 0x1F00, 0x0001, 0x0103, 0x0101, 0x0101, 0x0101, 0x0101,
389 0x0000, 0x0000, 0x0000, 0x0201, 0x0403, 0x0605, 0x0807, 0x0A09,
390 0xFF0B
391 };
392
393 *length = ARRAY_SIZE(tables);
394 return tables;
395 }
396
397 /****************************************************************************/
398 /* MCHIP low-level functions */
399 /****************************************************************************/
400
401 /* returns the horizontal capture size */
402 static inline int mchip_hsize(void)
403 {
404 return meye.params.subsample ? 320 : 640;
405 }
406
407 /* returns the vertical capture size */
408 static inline int mchip_vsize(void)
409 {
410 return meye.params.subsample ? 240 : 480;
411 }
412
413 /* waits for a register to be available */
414 static void mchip_sync(int reg)
415 {
416 u32 status;
417 int i;
418
419 if (reg == MCHIP_MM_FIFO_DATA) {
420 for (i = 0; i < MCHIP_REG_TIMEOUT; i++) {
421 status = readl(meye.mchip_mmregs +
422 MCHIP_MM_FIFO_STATUS);
423 if (!(status & MCHIP_MM_FIFO_WAIT)) {
424 printk(KERN_WARNING "meye: fifo not ready\n");
425 return;
426 }
427 if (status & MCHIP_MM_FIFO_READY)
428 return;
429 udelay(1);
430 }
431 } else if (reg > 0x80) {
432 u32 mask = (reg < 0x100) ? MCHIP_HIC_STATUS_MCC_RDY
433 : MCHIP_HIC_STATUS_VRJ_RDY;
434 for (i = 0; i < MCHIP_REG_TIMEOUT; i++) {
435 status = readl(meye.mchip_mmregs + MCHIP_HIC_STATUS);
436 if (status & mask)
437 return;
438 udelay(1);
439 }
440 } else
441 return;
442 printk(KERN_WARNING
443 "meye: mchip_sync() timeout on reg 0x%x status=0x%x\n",
444 reg, status);
445 }
446
447 /* sets a value into the register */
448 static inline void mchip_set(int reg, u32 v)
449 {
450 mchip_sync(reg);
451 writel(v, meye.mchip_mmregs + reg);
452 }
453
454 /* get the register value */
455 static inline u32 mchip_read(int reg)
456 {
457 mchip_sync(reg);
458 return readl(meye.mchip_mmregs + reg);
459 }
460
461 /* wait for a register to become a particular value */
462 static inline int mchip_delay(u32 reg, u32 v)
463 {
464 int n = 10;
465 while (--n && mchip_read(reg) != v)
466 udelay(1);
467 return n;
468 }
469
470 /* setup subsampling */
471 static void mchip_subsample(void)
472 {
473 mchip_set(MCHIP_MCC_R_SAMPLING, meye.params.subsample);
474 mchip_set(MCHIP_MCC_R_XRANGE, mchip_hsize());
475 mchip_set(MCHIP_MCC_R_YRANGE, mchip_vsize());
476 mchip_set(MCHIP_MCC_B_XRANGE, mchip_hsize());
477 mchip_set(MCHIP_MCC_B_YRANGE, mchip_vsize());
478 mchip_delay(MCHIP_HIC_STATUS, MCHIP_HIC_STATUS_IDLE);
479 }
480
481 /* set the framerate into the mchip */
482 static void mchip_set_framerate(void)
483 {
484 mchip_set(MCHIP_HIC_S_RATE, meye.params.framerate);
485 }
486
487 /* load some huffman and quantisation tables into the VRJ chip ready
488 for JPEG compression */
489 static void mchip_load_tables(void)
490 {
491 int i;
492 int length;
493 u16 *tables;
494
495 tables = jpeg_huffman_tables(&length);
496 for (i = 0; i < length; i++)
497 writel(tables[i], meye.mchip_mmregs + MCHIP_VRJ_TABLE_DATA);
498
499 tables = jpeg_quantisation_tables(&length, meye.params.quality);
500 for (i = 0; i < length; i++)
501 writel(tables[i], meye.mchip_mmregs + MCHIP_VRJ_TABLE_DATA);
502 }
503
504 /* setup the VRJ parameters in the chip */
505 static void mchip_vrj_setup(u8 mode)
506 {
507 mchip_set(MCHIP_VRJ_BUS_MODE, 5);
508 mchip_set(MCHIP_VRJ_SIGNAL_ACTIVE_LEVEL, 0x1f);
509 mchip_set(MCHIP_VRJ_PDAT_USE, 1);
510 mchip_set(MCHIP_VRJ_IRQ_FLAG, 0xa0);
511 mchip_set(MCHIP_VRJ_MODE_SPECIFY, mode);
512 mchip_set(MCHIP_VRJ_NUM_LINES, mchip_vsize());
513 mchip_set(MCHIP_VRJ_NUM_PIXELS, mchip_hsize());
514 mchip_set(MCHIP_VRJ_NUM_COMPONENTS, 0x1b);
515 mchip_set(MCHIP_VRJ_LIMIT_COMPRESSED_LO, 0xFFFF);
516 mchip_set(MCHIP_VRJ_LIMIT_COMPRESSED_HI, 0xFFFF);
517 mchip_set(MCHIP_VRJ_COMP_DATA_FORMAT, 0xC);
518 mchip_set(MCHIP_VRJ_RESTART_INTERVAL, 0);
519 mchip_set(MCHIP_VRJ_SOF1, 0x601);
520 mchip_set(MCHIP_VRJ_SOF2, 0x1502);
521 mchip_set(MCHIP_VRJ_SOF3, 0x1503);
522 mchip_set(MCHIP_VRJ_SOF4, 0x1596);
523 mchip_set(MCHIP_VRJ_SOS, 0x0ed0);
524
525 mchip_load_tables();
526 }
527
528 /* sets the DMA parameters into the chip */
529 static void mchip_dma_setup(dma_addr_t dma_addr)
530 {
531 int i;
532
533 mchip_set(MCHIP_MM_PT_ADDR, (u32)dma_addr);
534 for (i = 0; i < 4; i++)
535 mchip_set(MCHIP_MM_FIR(i), 0);
536 meye.mchip_fnum = 0;
537 }
538
539 /* setup for DMA transfers - also zeros the framebuffer */
540 static int mchip_dma_alloc(void)
541 {
542 if (!meye.mchip_dmahandle)
543 if (ptable_alloc())
544 return -1;
545 return 0;
546 }
547
548 /* frees the DMA buffer */
549 static void mchip_dma_free(void)
550 {
551 if (meye.mchip_dmahandle) {
552 mchip_dma_setup(0);
553 ptable_free();
554 }
555 }
556
557 /* stop any existing HIC action and wait for any dma to complete then
558 reset the dma engine */
559 static void mchip_hic_stop(void)
560 {
561 int i, j;
562
563 meye.mchip_mode = MCHIP_HIC_MODE_NOOP;
564 if (!(mchip_read(MCHIP_HIC_STATUS) & MCHIP_HIC_STATUS_BUSY))
565 return;
566 for (i = 0; i < 20; ++i) {
567 mchip_set(MCHIP_HIC_CMD, MCHIP_HIC_CMD_STOP);
568 mchip_delay(MCHIP_HIC_CMD, 0);
569 for (j = 0; j < 100; ++j) {
570 if (mchip_delay(MCHIP_HIC_STATUS,
571 MCHIP_HIC_STATUS_IDLE))
572 return;
573 msleep(1);
574 }
575 printk(KERN_ERR "meye: need to reset HIC!\n");
576
577 mchip_set(MCHIP_HIC_CTL, MCHIP_HIC_CTL_SOFT_RESET);
578 msleep(250);
579 }
580 printk(KERN_ERR "meye: resetting HIC hanged!\n");
581 }
582
583 /****************************************************************************/
584 /* MCHIP frame processing functions */
585 /****************************************************************************/
586
587 /* get the next ready frame from the dma engine */
588 static u32 mchip_get_frame(void)
589 {
590 u32 v;
591
592 v = mchip_read(MCHIP_MM_FIR(meye.mchip_fnum));
593 return v;
594 }
595
596 /* frees the current frame from the dma engine */
597 static void mchip_free_frame(void)
598 {
599 mchip_set(MCHIP_MM_FIR(meye.mchip_fnum), 0);
600 meye.mchip_fnum++;
601 meye.mchip_fnum %= 4;
602 }
603
604 /* read one frame from the framebuffer assuming it was captured using
605 a uncompressed transfer */
606 static void mchip_cont_read_frame(u32 v, u8 *buf, int size)
607 {
608 int pt_id;
609
610 pt_id = (v >> 17) & 0x3FF;
611
612 ptable_copy(buf, pt_id, size, MCHIP_NB_PAGES);
613 }
614
615 /* read a compressed frame from the framebuffer */
616 static int mchip_comp_read_frame(u32 v, u8 *buf, int size)
617 {
618 int pt_start, pt_end, trailer;
619 int fsize;
620 int i;
621
622 pt_start = (v >> 19) & 0xFF;
623 pt_end = (v >> 11) & 0xFF;
624 trailer = (v >> 1) & 0x3FF;
625
626 if (pt_end < pt_start)
627 fsize = (MCHIP_NB_PAGES_MJPEG - pt_start) * PAGE_SIZE +
628 pt_end * PAGE_SIZE + trailer * 4;
629 else
630 fsize = (pt_end - pt_start) * PAGE_SIZE + trailer * 4;
631
632 if (fsize > size) {
633 printk(KERN_WARNING "meye: oversized compressed frame %d\n",
634 fsize);
635 return -1;
636 }
637
638 ptable_copy(buf, pt_start, fsize, MCHIP_NB_PAGES_MJPEG);
639
640 #ifdef MEYE_JPEG_CORRECTION
641
642 /* Some mchip generated jpeg frames are incorrect. In most
643 * (all ?) of those cases, the final EOI (0xff 0xd9) marker
644 * is not present at the end of the frame.
645 *
646 * Since adding the final marker is not enough to restore
647 * the jpeg integrity, we drop the frame.
648 */
649
650 for (i = fsize - 1; i > 0 && buf[i] == 0xff; i--) ;
651
652 if (i < 2 || buf[i - 1] != 0xff || buf[i] != 0xd9)
653 return -1;
654
655 #endif
656
657 return fsize;
658 }
659
660 /* take a picture into SDRAM */
661 static void mchip_take_picture(void)
662 {
663 int i;
664
665 mchip_hic_stop();
666 mchip_subsample();
667 mchip_dma_setup(meye.mchip_dmahandle);
668
669 mchip_set(MCHIP_HIC_MODE, MCHIP_HIC_MODE_STILL_CAP);
670 mchip_set(MCHIP_HIC_CMD, MCHIP_HIC_CMD_START);
671
672 mchip_delay(MCHIP_HIC_CMD, 0);
673
674 for (i = 0; i < 100; ++i) {
675 if (mchip_delay(MCHIP_HIC_STATUS, MCHIP_HIC_STATUS_IDLE))
676 break;
677 msleep(1);
678 }
679 }
680
681 /* dma a previously taken picture into a buffer */
682 static void mchip_get_picture(u8 *buf, int bufsize)
683 {
684 u32 v;
685 int i;
686
687 mchip_set(MCHIP_HIC_MODE, MCHIP_HIC_MODE_STILL_OUT);
688 mchip_set(MCHIP_HIC_CMD, MCHIP_HIC_CMD_START);
689
690 mchip_delay(MCHIP_HIC_CMD, 0);
691 for (i = 0; i < 100; ++i) {
692 if (mchip_delay(MCHIP_HIC_STATUS, MCHIP_HIC_STATUS_IDLE))
693 break;
694 msleep(1);
695 }
696 for (i = 0; i < 4; ++i) {
697 v = mchip_get_frame();
698 if (v & MCHIP_MM_FIR_RDY) {
699 mchip_cont_read_frame(v, buf, bufsize);
700 break;
701 }
702 mchip_free_frame();
703 }
704 }
705
706 /* start continuous dma capture */
707 static void mchip_continuous_start(void)
708 {
709 mchip_hic_stop();
710 mchip_subsample();
711 mchip_set_framerate();
712 mchip_dma_setup(meye.mchip_dmahandle);
713
714 meye.mchip_mode = MCHIP_HIC_MODE_CONT_OUT;
715
716 mchip_set(MCHIP_HIC_MODE, MCHIP_HIC_MODE_CONT_OUT);
717 mchip_set(MCHIP_HIC_CMD, MCHIP_HIC_CMD_START);
718
719 mchip_delay(MCHIP_HIC_CMD, 0);
720 }
721
722 /* compress one frame into a buffer */
723 static int mchip_compress_frame(u8 *buf, int bufsize)
724 {
725 u32 v;
726 int len = -1, i;
727
728 mchip_vrj_setup(0x3f);
729 udelay(50);
730
731 mchip_set(MCHIP_HIC_MODE, MCHIP_HIC_MODE_STILL_COMP);
732 mchip_set(MCHIP_HIC_CMD, MCHIP_HIC_CMD_START);
733
734 mchip_delay(MCHIP_HIC_CMD, 0);
735 for (i = 0; i < 100; ++i) {
736 if (mchip_delay(MCHIP_HIC_STATUS, MCHIP_HIC_STATUS_IDLE))
737 break;
738 msleep(1);
739 }
740
741 for (i = 0; i < 4; ++i) {
742 v = mchip_get_frame();
743 if (v & MCHIP_MM_FIR_RDY) {
744 len = mchip_comp_read_frame(v, buf, bufsize);
745 break;
746 }
747 mchip_free_frame();
748 }
749 return len;
750 }
751
752 #if 0
753 /* uncompress one image into a buffer */
754 static int mchip_uncompress_frame(u8 *img, int imgsize, u8 *buf, int bufsize)
755 {
756 mchip_vrj_setup(0x3f);
757 udelay(50);
758
759 mchip_set(MCHIP_HIC_MODE, MCHIP_HIC_MODE_STILL_DECOMP);
760 mchip_set(MCHIP_HIC_CMD, MCHIP_HIC_CMD_START);
761
762 mchip_delay(MCHIP_HIC_CMD, 0);
763
764 return mchip_comp_read_frame(buf, bufsize);
765 }
766 #endif
767
768 /* start continuous compressed capture */
769 static void mchip_cont_compression_start(void)
770 {
771 mchip_hic_stop();
772 mchip_vrj_setup(0x3f);
773 mchip_subsample();
774 mchip_set_framerate();
775 mchip_dma_setup(meye.mchip_dmahandle);
776
777 meye.mchip_mode = MCHIP_HIC_MODE_CONT_COMP;
778
779 mchip_set(MCHIP_HIC_MODE, MCHIP_HIC_MODE_CONT_COMP);
780 mchip_set(MCHIP_HIC_CMD, MCHIP_HIC_CMD_START);
781
782 mchip_delay(MCHIP_HIC_CMD, 0);
783 }
784
785 /****************************************************************************/
786 /* Interrupt handling */
787 /****************************************************************************/
788
789 static irqreturn_t meye_irq(int irq, void *dev_id)
790 {
791 u32 v;
792 int reqnr;
793 static int sequence;
794
795 v = mchip_read(MCHIP_MM_INTA);
796
797 if (meye.mchip_mode != MCHIP_HIC_MODE_CONT_OUT &&
798 meye.mchip_mode != MCHIP_HIC_MODE_CONT_COMP)
799 return IRQ_NONE;
800
801 again:
802 v = mchip_get_frame();
803 if (!(v & MCHIP_MM_FIR_RDY))
804 return IRQ_HANDLED;
805
806 if (meye.mchip_mode == MCHIP_HIC_MODE_CONT_OUT) {
807 if (kfifo_out_locked(&meye.grabq, (unsigned char *)&reqnr,
808 sizeof(int), &meye.grabq_lock) != sizeof(int)) {
809 mchip_free_frame();
810 return IRQ_HANDLED;
811 }
812 mchip_cont_read_frame(v, meye.grab_fbuffer + gbufsize * reqnr,
813 mchip_hsize() * mchip_vsize() * 2);
814 meye.grab_buffer[reqnr].size = mchip_hsize() * mchip_vsize() * 2;
815 meye.grab_buffer[reqnr].state = MEYE_BUF_DONE;
816 v4l2_get_timestamp(&meye.grab_buffer[reqnr].timestamp);
817 meye.grab_buffer[reqnr].sequence = sequence++;
818 kfifo_in_locked(&meye.doneq, (unsigned char *)&reqnr,
819 sizeof(int), &meye.doneq_lock);
820 wake_up_interruptible(&meye.proc_list);
821 } else {
822 int size;
823 size = mchip_comp_read_frame(v, meye.grab_temp, gbufsize);
824 if (size == -1) {
825 mchip_free_frame();
826 goto again;
827 }
828 if (kfifo_out_locked(&meye.grabq, (unsigned char *)&reqnr,
829 sizeof(int), &meye.grabq_lock) != sizeof(int)) {
830 mchip_free_frame();
831 goto again;
832 }
833 memcpy(meye.grab_fbuffer + gbufsize * reqnr, meye.grab_temp,
834 size);
835 meye.grab_buffer[reqnr].size = size;
836 meye.grab_buffer[reqnr].state = MEYE_BUF_DONE;
837 v4l2_get_timestamp(&meye.grab_buffer[reqnr].timestamp);
838 meye.grab_buffer[reqnr].sequence = sequence++;
839 kfifo_in_locked(&meye.doneq, (unsigned char *)&reqnr,
840 sizeof(int), &meye.doneq_lock);
841 wake_up_interruptible(&meye.proc_list);
842 }
843 mchip_free_frame();
844 goto again;
845 }
846
847 /****************************************************************************/
848 /* video4linux integration */
849 /****************************************************************************/
850
851 static int meye_open(struct file *file)
852 {
853 int i;
854
855 if (test_and_set_bit(0, &meye.in_use))
856 return -EBUSY;
857
858 mchip_hic_stop();
859
860 if (mchip_dma_alloc()) {
861 printk(KERN_ERR "meye: mchip framebuffer allocation failed\n");
862 clear_bit(0, &meye.in_use);
863 return -ENOBUFS;
864 }
865
866 for (i = 0; i < MEYE_MAX_BUFNBRS; i++)
867 meye.grab_buffer[i].state = MEYE_BUF_UNUSED;
868 kfifo_reset(&meye.grabq);
869 kfifo_reset(&meye.doneq);
870 return v4l2_fh_open(file);
871 }
872
873 static int meye_release(struct file *file)
874 {
875 mchip_hic_stop();
876 mchip_dma_free();
877 clear_bit(0, &meye.in_use);
878 return v4l2_fh_release(file);
879 }
880
881 static int meyeioc_g_params(struct meye_params *p)
882 {
883 *p = meye.params;
884 return 0;
885 }
886
887 static int meyeioc_s_params(struct meye_params *jp)
888 {
889 if (jp->subsample > 1)
890 return -EINVAL;
891
892 if (jp->quality > 10)
893 return -EINVAL;
894
895 if (jp->sharpness > 63 || jp->agc > 63 || jp->picture > 63)
896 return -EINVAL;
897
898 if (jp->framerate > 31)
899 return -EINVAL;
900
901 mutex_lock(&meye.lock);
902
903 if (meye.params.subsample != jp->subsample ||
904 meye.params.quality != jp->quality)
905 mchip_hic_stop(); /* need restart */
906
907 meye.params = *jp;
908 sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERASHARPNESS,
909 meye.params.sharpness);
910 sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERAAGC,
911 meye.params.agc);
912 sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERAPICTURE,
913 meye.params.picture);
914 mutex_unlock(&meye.lock);
915
916 return 0;
917 }
918
919 static int meyeioc_qbuf_capt(int *nb)
920 {
921 if (!meye.grab_fbuffer)
922 return -EINVAL;
923
924 if (*nb >= gbuffers)
925 return -EINVAL;
926
927 if (*nb < 0) {
928 /* stop capture */
929 mchip_hic_stop();
930 return 0;
931 }
932
933 if (meye.grab_buffer[*nb].state != MEYE_BUF_UNUSED)
934 return -EBUSY;
935
936 mutex_lock(&meye.lock);
937
938 if (meye.mchip_mode != MCHIP_HIC_MODE_CONT_COMP)
939 mchip_cont_compression_start();
940
941 meye.grab_buffer[*nb].state = MEYE_BUF_USING;
942 kfifo_in_locked(&meye.grabq, (unsigned char *)nb, sizeof(int),
943 &meye.grabq_lock);
944 mutex_unlock(&meye.lock);
945
946 return 0;
947 }
948
949 static int meyeioc_sync(struct file *file, void *fh, int *i)
950 {
951 int unused;
952
953 if (*i < 0 || *i >= gbuffers)
954 return -EINVAL;
955
956 mutex_lock(&meye.lock);
957 switch (meye.grab_buffer[*i].state) {
958
959 case MEYE_BUF_UNUSED:
960 mutex_unlock(&meye.lock);
961 return -EINVAL;
962 case MEYE_BUF_USING:
963 if (file->f_flags & O_NONBLOCK) {
964 mutex_unlock(&meye.lock);
965 return -EAGAIN;
966 }
967 if (wait_event_interruptible(meye.proc_list,
968 (meye.grab_buffer[*i].state != MEYE_BUF_USING))) {
969 mutex_unlock(&meye.lock);
970 return -EINTR;
971 }
972 /* fall through */
973 case MEYE_BUF_DONE:
974 meye.grab_buffer[*i].state = MEYE_BUF_UNUSED;
975 if (kfifo_out_locked(&meye.doneq, (unsigned char *)&unused,
976 sizeof(int), &meye.doneq_lock) != sizeof(int))
977 break;
978 }
979 *i = meye.grab_buffer[*i].size;
980 mutex_unlock(&meye.lock);
981 return 0;
982 }
983
984 static int meyeioc_stillcapt(void)
985 {
986 if (!meye.grab_fbuffer)
987 return -EINVAL;
988
989 if (meye.grab_buffer[0].state != MEYE_BUF_UNUSED)
990 return -EBUSY;
991
992 mutex_lock(&meye.lock);
993 meye.grab_buffer[0].state = MEYE_BUF_USING;
994 mchip_take_picture();
995
996 mchip_get_picture(meye.grab_fbuffer,
997 mchip_hsize() * mchip_vsize() * 2);
998
999 meye.grab_buffer[0].state = MEYE_BUF_DONE;
1000 mutex_unlock(&meye.lock);
1001
1002 return 0;
1003 }
1004
1005 static int meyeioc_stilljcapt(int *len)
1006 {
1007 if (!meye.grab_fbuffer)
1008 return -EINVAL;
1009
1010 if (meye.grab_buffer[0].state != MEYE_BUF_UNUSED)
1011 return -EBUSY;
1012
1013 mutex_lock(&meye.lock);
1014 meye.grab_buffer[0].state = MEYE_BUF_USING;
1015 *len = -1;
1016
1017 while (*len == -1) {
1018 mchip_take_picture();
1019 *len = mchip_compress_frame(meye.grab_fbuffer, gbufsize);
1020 }
1021
1022 meye.grab_buffer[0].state = MEYE_BUF_DONE;
1023 mutex_unlock(&meye.lock);
1024 return 0;
1025 }
1026
1027 static int vidioc_querycap(struct file *file, void *fh,
1028 struct v4l2_capability *cap)
1029 {
1030 strcpy(cap->driver, "meye");
1031 strcpy(cap->card, "meye");
1032 sprintf(cap->bus_info, "PCI:%s", pci_name(meye.mchip_dev));
1033
1034 cap->version = (MEYE_DRIVER_MAJORVERSION << 8) +
1035 MEYE_DRIVER_MINORVERSION;
1036
1037 cap->device_caps = V4L2_CAP_VIDEO_CAPTURE |
1038 V4L2_CAP_STREAMING;
1039 cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
1040
1041 return 0;
1042 }
1043
1044 static int vidioc_enum_input(struct file *file, void *fh, struct v4l2_input *i)
1045 {
1046 if (i->index != 0)
1047 return -EINVAL;
1048
1049 strcpy(i->name, "Camera");
1050 i->type = V4L2_INPUT_TYPE_CAMERA;
1051
1052 return 0;
1053 }
1054
1055 static int vidioc_g_input(struct file *file, void *fh, unsigned int *i)
1056 {
1057 *i = 0;
1058 return 0;
1059 }
1060
1061 static int vidioc_s_input(struct file *file, void *fh, unsigned int i)
1062 {
1063 if (i != 0)
1064 return -EINVAL;
1065
1066 return 0;
1067 }
1068
1069 static int meye_s_ctrl(struct v4l2_ctrl *ctrl)
1070 {
1071 mutex_lock(&meye.lock);
1072 switch (ctrl->id) {
1073 case V4L2_CID_BRIGHTNESS:
1074 sony_pic_camera_command(
1075 SONY_PIC_COMMAND_SETCAMERABRIGHTNESS, ctrl->val);
1076 meye.brightness = ctrl->val << 10;
1077 break;
1078 case V4L2_CID_HUE:
1079 sony_pic_camera_command(
1080 SONY_PIC_COMMAND_SETCAMERAHUE, ctrl->val);
1081 meye.hue = ctrl->val << 10;
1082 break;
1083 case V4L2_CID_CONTRAST:
1084 sony_pic_camera_command(
1085 SONY_PIC_COMMAND_SETCAMERACONTRAST, ctrl->val);
1086 meye.contrast = ctrl->val << 10;
1087 break;
1088 case V4L2_CID_SATURATION:
1089 sony_pic_camera_command(
1090 SONY_PIC_COMMAND_SETCAMERACOLOR, ctrl->val);
1091 meye.colour = ctrl->val << 10;
1092 break;
1093 case V4L2_CID_MEYE_AGC:
1094 sony_pic_camera_command(
1095 SONY_PIC_COMMAND_SETCAMERAAGC, ctrl->val);
1096 meye.params.agc = ctrl->val;
1097 break;
1098 case V4L2_CID_SHARPNESS:
1099 sony_pic_camera_command(
1100 SONY_PIC_COMMAND_SETCAMERASHARPNESS, ctrl->val);
1101 meye.params.sharpness = ctrl->val;
1102 break;
1103 case V4L2_CID_MEYE_PICTURE:
1104 sony_pic_camera_command(
1105 SONY_PIC_COMMAND_SETCAMERAPICTURE, ctrl->val);
1106 meye.params.picture = ctrl->val;
1107 break;
1108 case V4L2_CID_JPEG_COMPRESSION_QUALITY:
1109 meye.params.quality = ctrl->val;
1110 break;
1111 case V4L2_CID_MEYE_FRAMERATE:
1112 meye.params.framerate = ctrl->val;
1113 break;
1114 default:
1115 mutex_unlock(&meye.lock);
1116 return -EINVAL;
1117 }
1118 mutex_unlock(&meye.lock);
1119
1120 return 0;
1121 }
1122
1123 static int vidioc_enum_fmt_vid_cap(struct file *file, void *fh,
1124 struct v4l2_fmtdesc *f)
1125 {
1126 if (f->index > 1)
1127 return -EINVAL;
1128
1129 if (f->index == 0) {
1130 /* standard YUV 422 capture */
1131 f->flags = 0;
1132 strcpy(f->description, "YUV422");
1133 f->pixelformat = V4L2_PIX_FMT_YUYV;
1134 } else {
1135 /* compressed MJPEG capture */
1136 f->flags = V4L2_FMT_FLAG_COMPRESSED;
1137 strcpy(f->description, "MJPEG");
1138 f->pixelformat = V4L2_PIX_FMT_MJPEG;
1139 }
1140
1141 return 0;
1142 }
1143
1144 static int vidioc_try_fmt_vid_cap(struct file *file, void *fh,
1145 struct v4l2_format *f)
1146 {
1147 if (f->fmt.pix.pixelformat != V4L2_PIX_FMT_YUYV &&
1148 f->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG)
1149 return -EINVAL;
1150
1151 if (f->fmt.pix.field != V4L2_FIELD_ANY &&
1152 f->fmt.pix.field != V4L2_FIELD_NONE)
1153 return -EINVAL;
1154
1155 f->fmt.pix.field = V4L2_FIELD_NONE;
1156
1157 if (f->fmt.pix.width <= 320) {
1158 f->fmt.pix.width = 320;
1159 f->fmt.pix.height = 240;
1160 } else {
1161 f->fmt.pix.width = 640;
1162 f->fmt.pix.height = 480;
1163 }
1164
1165 f->fmt.pix.bytesperline = f->fmt.pix.width * 2;
1166 f->fmt.pix.sizeimage = f->fmt.pix.height *
1167 f->fmt.pix.bytesperline;
1168 f->fmt.pix.colorspace = 0;
1169 f->fmt.pix.priv = 0;
1170
1171 return 0;
1172 }
1173
1174 static int vidioc_g_fmt_vid_cap(struct file *file, void *fh,
1175 struct v4l2_format *f)
1176 {
1177 switch (meye.mchip_mode) {
1178 case MCHIP_HIC_MODE_CONT_OUT:
1179 default:
1180 f->fmt.pix.pixelformat = V4L2_PIX_FMT_YUYV;
1181 break;
1182 case MCHIP_HIC_MODE_CONT_COMP:
1183 f->fmt.pix.pixelformat = V4L2_PIX_FMT_MJPEG;
1184 break;
1185 }
1186
1187 f->fmt.pix.field = V4L2_FIELD_NONE;
1188 f->fmt.pix.width = mchip_hsize();
1189 f->fmt.pix.height = mchip_vsize();
1190 f->fmt.pix.bytesperline = f->fmt.pix.width * 2;
1191 f->fmt.pix.sizeimage = f->fmt.pix.height *
1192 f->fmt.pix.bytesperline;
1193
1194 return 0;
1195 }
1196
1197 static int vidioc_s_fmt_vid_cap(struct file *file, void *fh,
1198 struct v4l2_format *f)
1199 {
1200 if (f->fmt.pix.pixelformat != V4L2_PIX_FMT_YUYV &&
1201 f->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG)
1202 return -EINVAL;
1203
1204 if (f->fmt.pix.field != V4L2_FIELD_ANY &&
1205 f->fmt.pix.field != V4L2_FIELD_NONE)
1206 return -EINVAL;
1207
1208 f->fmt.pix.field = V4L2_FIELD_NONE;
1209 mutex_lock(&meye.lock);
1210
1211 if (f->fmt.pix.width <= 320) {
1212 f->fmt.pix.width = 320;
1213 f->fmt.pix.height = 240;
1214 meye.params.subsample = 1;
1215 } else {
1216 f->fmt.pix.width = 640;
1217 f->fmt.pix.height = 480;
1218 meye.params.subsample = 0;
1219 }
1220
1221 switch (f->fmt.pix.pixelformat) {
1222 case V4L2_PIX_FMT_YUYV:
1223 meye.mchip_mode = MCHIP_HIC_MODE_CONT_OUT;
1224 break;
1225 case V4L2_PIX_FMT_MJPEG:
1226 meye.mchip_mode = MCHIP_HIC_MODE_CONT_COMP;
1227 break;
1228 }
1229
1230 mutex_unlock(&meye.lock);
1231 f->fmt.pix.bytesperline = f->fmt.pix.width * 2;
1232 f->fmt.pix.sizeimage = f->fmt.pix.height *
1233 f->fmt.pix.bytesperline;
1234 f->fmt.pix.colorspace = 0;
1235 f->fmt.pix.priv = 0;
1236
1237 return 0;
1238 }
1239
1240 static int vidioc_reqbufs(struct file *file, void *fh,
1241 struct v4l2_requestbuffers *req)
1242 {
1243 int i;
1244
1245 if (req->memory != V4L2_MEMORY_MMAP)
1246 return -EINVAL;
1247
1248 if (meye.grab_fbuffer && req->count == gbuffers) {
1249 /* already allocated, no modifications */
1250 return 0;
1251 }
1252
1253 mutex_lock(&meye.lock);
1254 if (meye.grab_fbuffer) {
1255 for (i = 0; i < gbuffers; i++)
1256 if (meye.vma_use_count[i]) {
1257 mutex_unlock(&meye.lock);
1258 return -EINVAL;
1259 }
1260 rvfree(meye.grab_fbuffer, gbuffers * gbufsize);
1261 meye.grab_fbuffer = NULL;
1262 }
1263
1264 gbuffers = max(2, min((int)req->count, MEYE_MAX_BUFNBRS));
1265 req->count = gbuffers;
1266 meye.grab_fbuffer = rvmalloc(gbuffers * gbufsize);
1267
1268 if (!meye.grab_fbuffer) {
1269 printk(KERN_ERR "meye: v4l framebuffer allocation"
1270 " failed\n");
1271 mutex_unlock(&meye.lock);
1272 return -ENOMEM;
1273 }
1274
1275 for (i = 0; i < gbuffers; i++)
1276 meye.vma_use_count[i] = 0;
1277
1278 mutex_unlock(&meye.lock);
1279
1280 return 0;
1281 }
1282
1283 static int vidioc_querybuf(struct file *file, void *fh, struct v4l2_buffer *buf)
1284 {
1285 unsigned int index = buf->index;
1286
1287 if (index >= gbuffers)
1288 return -EINVAL;
1289
1290 buf->bytesused = meye.grab_buffer[index].size;
1291 buf->flags = V4L2_BUF_FLAG_MAPPED | V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1292
1293 if (meye.grab_buffer[index].state == MEYE_BUF_USING)
1294 buf->flags |= V4L2_BUF_FLAG_QUEUED;
1295
1296 if (meye.grab_buffer[index].state == MEYE_BUF_DONE)
1297 buf->flags |= V4L2_BUF_FLAG_DONE;
1298
1299 buf->field = V4L2_FIELD_NONE;
1300 buf->timestamp = meye.grab_buffer[index].timestamp;
1301 buf->sequence = meye.grab_buffer[index].sequence;
1302 buf->memory = V4L2_MEMORY_MMAP;
1303 buf->m.offset = index * gbufsize;
1304 buf->length = gbufsize;
1305
1306 return 0;
1307 }
1308
1309 static int vidioc_qbuf(struct file *file, void *fh, struct v4l2_buffer *buf)
1310 {
1311 if (buf->memory != V4L2_MEMORY_MMAP)
1312 return -EINVAL;
1313
1314 if (buf->index >= gbuffers)
1315 return -EINVAL;
1316
1317 if (meye.grab_buffer[buf->index].state != MEYE_BUF_UNUSED)
1318 return -EINVAL;
1319
1320 mutex_lock(&meye.lock);
1321 buf->flags |= V4L2_BUF_FLAG_QUEUED;
1322 buf->flags &= ~V4L2_BUF_FLAG_DONE;
1323 meye.grab_buffer[buf->index].state = MEYE_BUF_USING;
1324 kfifo_in_locked(&meye.grabq, (unsigned char *)&buf->index,
1325 sizeof(int), &meye.grabq_lock);
1326 mutex_unlock(&meye.lock);
1327
1328 return 0;
1329 }
1330
1331 static int vidioc_dqbuf(struct file *file, void *fh, struct v4l2_buffer *buf)
1332 {
1333 int reqnr;
1334
1335 if (buf->memory != V4L2_MEMORY_MMAP)
1336 return -EINVAL;
1337
1338 mutex_lock(&meye.lock);
1339
1340 if (kfifo_len(&meye.doneq) == 0 && file->f_flags & O_NONBLOCK) {
1341 mutex_unlock(&meye.lock);
1342 return -EAGAIN;
1343 }
1344
1345 if (wait_event_interruptible(meye.proc_list,
1346 kfifo_len(&meye.doneq) != 0) < 0) {
1347 mutex_unlock(&meye.lock);
1348 return -EINTR;
1349 }
1350
1351 if (!kfifo_out_locked(&meye.doneq, (unsigned char *)&reqnr,
1352 sizeof(int), &meye.doneq_lock)) {
1353 mutex_unlock(&meye.lock);
1354 return -EBUSY;
1355 }
1356
1357 if (meye.grab_buffer[reqnr].state != MEYE_BUF_DONE) {
1358 mutex_unlock(&meye.lock);
1359 return -EINVAL;
1360 }
1361
1362 buf->index = reqnr;
1363 buf->bytesused = meye.grab_buffer[reqnr].size;
1364 buf->flags = V4L2_BUF_FLAG_MAPPED | V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1365 buf->field = V4L2_FIELD_NONE;
1366 buf->timestamp = meye.grab_buffer[reqnr].timestamp;
1367 buf->sequence = meye.grab_buffer[reqnr].sequence;
1368 buf->memory = V4L2_MEMORY_MMAP;
1369 buf->m.offset = reqnr * gbufsize;
1370 buf->length = gbufsize;
1371 meye.grab_buffer[reqnr].state = MEYE_BUF_UNUSED;
1372 mutex_unlock(&meye.lock);
1373
1374 return 0;
1375 }
1376
1377 static int vidioc_streamon(struct file *file, void *fh, enum v4l2_buf_type i)
1378 {
1379 mutex_lock(&meye.lock);
1380
1381 switch (meye.mchip_mode) {
1382 case MCHIP_HIC_MODE_CONT_OUT:
1383 mchip_continuous_start();
1384 break;
1385 case MCHIP_HIC_MODE_CONT_COMP:
1386 mchip_cont_compression_start();
1387 break;
1388 default:
1389 mutex_unlock(&meye.lock);
1390 return -EINVAL;
1391 }
1392
1393 mutex_unlock(&meye.lock);
1394
1395 return 0;
1396 }
1397
1398 static int vidioc_streamoff(struct file *file, void *fh, enum v4l2_buf_type i)
1399 {
1400 mutex_lock(&meye.lock);
1401 mchip_hic_stop();
1402 kfifo_reset(&meye.grabq);
1403 kfifo_reset(&meye.doneq);
1404
1405 for (i = 0; i < MEYE_MAX_BUFNBRS; i++)
1406 meye.grab_buffer[i].state = MEYE_BUF_UNUSED;
1407
1408 mutex_unlock(&meye.lock);
1409 return 0;
1410 }
1411
1412 static long vidioc_default(struct file *file, void *fh, bool valid_prio,
1413 unsigned int cmd, void *arg)
1414 {
1415 switch (cmd) {
1416 case MEYEIOC_G_PARAMS:
1417 return meyeioc_g_params((struct meye_params *) arg);
1418
1419 case MEYEIOC_S_PARAMS:
1420 return meyeioc_s_params((struct meye_params *) arg);
1421
1422 case MEYEIOC_QBUF_CAPT:
1423 return meyeioc_qbuf_capt((int *) arg);
1424
1425 case MEYEIOC_SYNC:
1426 return meyeioc_sync(file, fh, (int *) arg);
1427
1428 case MEYEIOC_STILLCAPT:
1429 return meyeioc_stillcapt();
1430
1431 case MEYEIOC_STILLJCAPT:
1432 return meyeioc_stilljcapt((int *) arg);
1433
1434 default:
1435 return -ENOTTY;
1436 }
1437
1438 }
1439
1440 static unsigned int meye_poll(struct file *file, poll_table *wait)
1441 {
1442 unsigned int res = v4l2_ctrl_poll(file, wait);
1443
1444 mutex_lock(&meye.lock);
1445 poll_wait(file, &meye.proc_list, wait);
1446 if (kfifo_len(&meye.doneq))
1447 res |= POLLIN | POLLRDNORM;
1448 mutex_unlock(&meye.lock);
1449 return res;
1450 }
1451
1452 static void meye_vm_open(struct vm_area_struct *vma)
1453 {
1454 long idx = (long)vma->vm_private_data;
1455 meye.vma_use_count[idx]++;
1456 }
1457
1458 static void meye_vm_close(struct vm_area_struct *vma)
1459 {
1460 long idx = (long)vma->vm_private_data;
1461 meye.vma_use_count[idx]--;
1462 }
1463
1464 static const struct vm_operations_struct meye_vm_ops = {
1465 .open = meye_vm_open,
1466 .close = meye_vm_close,
1467 };
1468
1469 static int meye_mmap(struct file *file, struct vm_area_struct *vma)
1470 {
1471 unsigned long start = vma->vm_start;
1472 unsigned long size = vma->vm_end - vma->vm_start;
1473 unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
1474 unsigned long page, pos;
1475
1476 mutex_lock(&meye.lock);
1477 if (size > gbuffers * gbufsize) {
1478 mutex_unlock(&meye.lock);
1479 return -EINVAL;
1480 }
1481 if (!meye.grab_fbuffer) {
1482 int i;
1483
1484 /* lazy allocation */
1485 meye.grab_fbuffer = rvmalloc(gbuffers*gbufsize);
1486 if (!meye.grab_fbuffer) {
1487 printk(KERN_ERR "meye: v4l framebuffer allocation failed\n");
1488 mutex_unlock(&meye.lock);
1489 return -ENOMEM;
1490 }
1491 for (i = 0; i < gbuffers; i++)
1492 meye.vma_use_count[i] = 0;
1493 }
1494 pos = (unsigned long)meye.grab_fbuffer + offset;
1495
1496 while (size > 0) {
1497 page = vmalloc_to_pfn((void *)pos);
1498 if (remap_pfn_range(vma, start, page, PAGE_SIZE, PAGE_SHARED)) {
1499 mutex_unlock(&meye.lock);
1500 return -EAGAIN;
1501 }
1502 start += PAGE_SIZE;
1503 pos += PAGE_SIZE;
1504 if (size > PAGE_SIZE)
1505 size -= PAGE_SIZE;
1506 else
1507 size = 0;
1508 }
1509
1510 vma->vm_ops = &meye_vm_ops;
1511 vma->vm_flags &= ~VM_IO; /* not I/O memory */
1512 vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
1513 vma->vm_private_data = (void *) (offset / gbufsize);
1514 meye_vm_open(vma);
1515
1516 mutex_unlock(&meye.lock);
1517 return 0;
1518 }
1519
1520 static const struct v4l2_file_operations meye_fops = {
1521 .owner = THIS_MODULE,
1522 .open = meye_open,
1523 .release = meye_release,
1524 .mmap = meye_mmap,
1525 .unlocked_ioctl = video_ioctl2,
1526 .poll = meye_poll,
1527 };
1528
1529 static const struct v4l2_ioctl_ops meye_ioctl_ops = {
1530 .vidioc_querycap = vidioc_querycap,
1531 .vidioc_enum_input = vidioc_enum_input,
1532 .vidioc_g_input = vidioc_g_input,
1533 .vidioc_s_input = vidioc_s_input,
1534 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
1535 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
1536 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
1537 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
1538 .vidioc_reqbufs = vidioc_reqbufs,
1539 .vidioc_querybuf = vidioc_querybuf,
1540 .vidioc_qbuf = vidioc_qbuf,
1541 .vidioc_dqbuf = vidioc_dqbuf,
1542 .vidioc_streamon = vidioc_streamon,
1543 .vidioc_streamoff = vidioc_streamoff,
1544 .vidioc_log_status = v4l2_ctrl_log_status,
1545 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
1546 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
1547 .vidioc_default = vidioc_default,
1548 };
1549
1550 static struct video_device meye_template = {
1551 .name = "meye",
1552 .fops = &meye_fops,
1553 .ioctl_ops = &meye_ioctl_ops,
1554 .release = video_device_release,
1555 };
1556
1557 static const struct v4l2_ctrl_ops meye_ctrl_ops = {
1558 .s_ctrl = meye_s_ctrl,
1559 };
1560
1561 #ifdef CONFIG_PM
1562 static int meye_suspend(struct pci_dev *pdev, pm_message_t state)
1563 {
1564 pci_save_state(pdev);
1565 meye.pm_mchip_mode = meye.mchip_mode;
1566 mchip_hic_stop();
1567 mchip_set(MCHIP_MM_INTA, 0x0);
1568 return 0;
1569 }
1570
1571 static int meye_resume(struct pci_dev *pdev)
1572 {
1573 pci_restore_state(pdev);
1574 pci_write_config_word(meye.mchip_dev, MCHIP_PCI_SOFTRESET_SET, 1);
1575
1576 mchip_delay(MCHIP_HIC_CMD, 0);
1577 mchip_delay(MCHIP_HIC_STATUS, MCHIP_HIC_STATUS_IDLE);
1578 msleep(1);
1579 mchip_set(MCHIP_VRJ_SOFT_RESET, 1);
1580 msleep(1);
1581 mchip_set(MCHIP_MM_PCI_MODE, 5);
1582 msleep(1);
1583 mchip_set(MCHIP_MM_INTA, MCHIP_MM_INTA_HIC_1_MASK);
1584
1585 switch (meye.pm_mchip_mode) {
1586 case MCHIP_HIC_MODE_CONT_OUT:
1587 mchip_continuous_start();
1588 break;
1589 case MCHIP_HIC_MODE_CONT_COMP:
1590 mchip_cont_compression_start();
1591 break;
1592 }
1593 return 0;
1594 }
1595 #endif
1596
1597 static int meye_probe(struct pci_dev *pcidev, const struct pci_device_id *ent)
1598 {
1599 static const struct v4l2_ctrl_config ctrl_agc = {
1600 .id = V4L2_CID_MEYE_AGC,
1601 .type = V4L2_CTRL_TYPE_INTEGER,
1602 .ops = &meye_ctrl_ops,
1603 .name = "AGC",
1604 .max = 63,
1605 .step = 1,
1606 .def = 48,
1607 .flags = V4L2_CTRL_FLAG_SLIDER,
1608 };
1609 static const struct v4l2_ctrl_config ctrl_picture = {
1610 .id = V4L2_CID_MEYE_PICTURE,
1611 .type = V4L2_CTRL_TYPE_INTEGER,
1612 .ops = &meye_ctrl_ops,
1613 .name = "Picture",
1614 .max = 63,
1615 .step = 1,
1616 };
1617 static const struct v4l2_ctrl_config ctrl_framerate = {
1618 .id = V4L2_CID_MEYE_FRAMERATE,
1619 .type = V4L2_CTRL_TYPE_INTEGER,
1620 .ops = &meye_ctrl_ops,
1621 .name = "Framerate",
1622 .max = 31,
1623 .step = 1,
1624 };
1625 struct v4l2_device *v4l2_dev = &meye.v4l2_dev;
1626 int ret = -EBUSY;
1627 unsigned long mchip_adr;
1628
1629 if (meye.mchip_dev != NULL) {
1630 printk(KERN_ERR "meye: only one device allowed!\n");
1631 goto outnotdev;
1632 }
1633
1634 ret = v4l2_device_register(&pcidev->dev, v4l2_dev);
1635 if (ret < 0) {
1636 v4l2_err(v4l2_dev, "Could not register v4l2_device\n");
1637 return ret;
1638 }
1639 ret = -ENOMEM;
1640 meye.mchip_dev = pcidev;
1641 meye.vdev = video_device_alloc();
1642 if (!meye.vdev) {
1643 v4l2_err(v4l2_dev, "video_device_alloc() failed!\n");
1644 goto outnotdev;
1645 }
1646
1647 meye.grab_temp = vmalloc(MCHIP_NB_PAGES_MJPEG * PAGE_SIZE);
1648 if (!meye.grab_temp) {
1649 v4l2_err(v4l2_dev, "grab buffer allocation failed\n");
1650 goto outvmalloc;
1651 }
1652
1653 spin_lock_init(&meye.grabq_lock);
1654 if (kfifo_alloc(&meye.grabq, sizeof(int) * MEYE_MAX_BUFNBRS,
1655 GFP_KERNEL)) {
1656 v4l2_err(v4l2_dev, "fifo allocation failed\n");
1657 goto outkfifoalloc1;
1658 }
1659 spin_lock_init(&meye.doneq_lock);
1660 if (kfifo_alloc(&meye.doneq, sizeof(int) * MEYE_MAX_BUFNBRS,
1661 GFP_KERNEL)) {
1662 v4l2_err(v4l2_dev, "fifo allocation failed\n");
1663 goto outkfifoalloc2;
1664 }
1665
1666 memcpy(meye.vdev, &meye_template, sizeof(meye_template));
1667 meye.vdev->v4l2_dev = &meye.v4l2_dev;
1668
1669 ret = -EIO;
1670 if ((ret = sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERA, 1))) {
1671 v4l2_err(v4l2_dev, "meye: unable to power on the camera\n");
1672 v4l2_err(v4l2_dev, "meye: did you enable the camera in "
1673 "sonypi using the module options ?\n");
1674 goto outsonypienable;
1675 }
1676
1677 if ((ret = pci_enable_device(meye.mchip_dev))) {
1678 v4l2_err(v4l2_dev, "meye: pci_enable_device failed\n");
1679 goto outenabledev;
1680 }
1681
1682 mchip_adr = pci_resource_start(meye.mchip_dev,0);
1683 if (!mchip_adr) {
1684 v4l2_err(v4l2_dev, "meye: mchip has no device base address\n");
1685 goto outregions;
1686 }
1687 if (!request_mem_region(pci_resource_start(meye.mchip_dev, 0),
1688 pci_resource_len(meye.mchip_dev, 0),
1689 "meye")) {
1690 v4l2_err(v4l2_dev, "meye: request_mem_region failed\n");
1691 goto outregions;
1692 }
1693 meye.mchip_mmregs = ioremap(mchip_adr, MCHIP_MM_REGS);
1694 if (!meye.mchip_mmregs) {
1695 v4l2_err(v4l2_dev, "meye: ioremap failed\n");
1696 goto outremap;
1697 }
1698
1699 meye.mchip_irq = pcidev->irq;
1700 if (request_irq(meye.mchip_irq, meye_irq,
1701 IRQF_SHARED, "meye", meye_irq)) {
1702 v4l2_err(v4l2_dev, "request_irq failed\n");
1703 goto outreqirq;
1704 }
1705
1706 pci_write_config_byte(meye.mchip_dev, PCI_CACHE_LINE_SIZE, 8);
1707 pci_write_config_byte(meye.mchip_dev, PCI_LATENCY_TIMER, 64);
1708
1709 pci_set_master(meye.mchip_dev);
1710
1711 /* Ask the camera to perform a soft reset. */
1712 pci_write_config_word(meye.mchip_dev, MCHIP_PCI_SOFTRESET_SET, 1);
1713
1714 mchip_delay(MCHIP_HIC_CMD, 0);
1715 mchip_delay(MCHIP_HIC_STATUS, MCHIP_HIC_STATUS_IDLE);
1716
1717 msleep(1);
1718 mchip_set(MCHIP_VRJ_SOFT_RESET, 1);
1719
1720 msleep(1);
1721 mchip_set(MCHIP_MM_PCI_MODE, 5);
1722
1723 msleep(1);
1724 mchip_set(MCHIP_MM_INTA, MCHIP_MM_INTA_HIC_1_MASK);
1725
1726 mutex_init(&meye.lock);
1727 init_waitqueue_head(&meye.proc_list);
1728
1729 v4l2_ctrl_handler_init(&meye.hdl, 3);
1730 v4l2_ctrl_new_std(&meye.hdl, &meye_ctrl_ops,
1731 V4L2_CID_BRIGHTNESS, 0, 63, 1, 32);
1732 v4l2_ctrl_new_std(&meye.hdl, &meye_ctrl_ops,
1733 V4L2_CID_HUE, 0, 63, 1, 32);
1734 v4l2_ctrl_new_std(&meye.hdl, &meye_ctrl_ops,
1735 V4L2_CID_CONTRAST, 0, 63, 1, 32);
1736 v4l2_ctrl_new_std(&meye.hdl, &meye_ctrl_ops,
1737 V4L2_CID_SATURATION, 0, 63, 1, 32);
1738 v4l2_ctrl_new_custom(&meye.hdl, &ctrl_agc, NULL);
1739 v4l2_ctrl_new_std(&meye.hdl, &meye_ctrl_ops,
1740 V4L2_CID_SHARPNESS, 0, 63, 1, 32);
1741 v4l2_ctrl_new_custom(&meye.hdl, &ctrl_picture, NULL);
1742 v4l2_ctrl_new_std(&meye.hdl, &meye_ctrl_ops,
1743 V4L2_CID_JPEG_COMPRESSION_QUALITY, 0, 10, 1, 8);
1744 v4l2_ctrl_new_custom(&meye.hdl, &ctrl_framerate, NULL);
1745 if (meye.hdl.error) {
1746 v4l2_err(v4l2_dev, "couldn't register controls\n");
1747 goto outvideoreg;
1748 }
1749
1750 v4l2_ctrl_handler_setup(&meye.hdl);
1751 meye.vdev->ctrl_handler = &meye.hdl;
1752 set_bit(V4L2_FL_USE_FH_PRIO, &meye.vdev->flags);
1753
1754 if (video_register_device(meye.vdev, VFL_TYPE_GRABBER,
1755 video_nr) < 0) {
1756 v4l2_err(v4l2_dev, "video_register_device failed\n");
1757 goto outvideoreg;
1758 }
1759
1760 v4l2_info(v4l2_dev, "Motion Eye Camera Driver v%s.\n",
1761 MEYE_DRIVER_VERSION);
1762 v4l2_info(v4l2_dev, "mchip KL5A72002 rev. %d, base %lx, irq %d\n",
1763 meye.mchip_dev->revision, mchip_adr, meye.mchip_irq);
1764
1765 return 0;
1766
1767 outvideoreg:
1768 v4l2_ctrl_handler_free(&meye.hdl);
1769 free_irq(meye.mchip_irq, meye_irq);
1770 outreqirq:
1771 iounmap(meye.mchip_mmregs);
1772 outremap:
1773 release_mem_region(pci_resource_start(meye.mchip_dev, 0),
1774 pci_resource_len(meye.mchip_dev, 0));
1775 outregions:
1776 pci_disable_device(meye.mchip_dev);
1777 outenabledev:
1778 sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERA, 0);
1779 outsonypienable:
1780 kfifo_free(&meye.doneq);
1781 outkfifoalloc2:
1782 kfifo_free(&meye.grabq);
1783 outkfifoalloc1:
1784 vfree(meye.grab_temp);
1785 outvmalloc:
1786 video_device_release(meye.vdev);
1787 outnotdev:
1788 return ret;
1789 }
1790
1791 static void meye_remove(struct pci_dev *pcidev)
1792 {
1793 video_unregister_device(meye.vdev);
1794
1795 mchip_hic_stop();
1796
1797 mchip_dma_free();
1798
1799 /* disable interrupts */
1800 mchip_set(MCHIP_MM_INTA, 0x0);
1801
1802 free_irq(meye.mchip_irq, meye_irq);
1803
1804 iounmap(meye.mchip_mmregs);
1805
1806 release_mem_region(pci_resource_start(meye.mchip_dev, 0),
1807 pci_resource_len(meye.mchip_dev, 0));
1808
1809 pci_disable_device(meye.mchip_dev);
1810
1811 sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERA, 0);
1812
1813 kfifo_free(&meye.doneq);
1814 kfifo_free(&meye.grabq);
1815
1816 vfree(meye.grab_temp);
1817
1818 if (meye.grab_fbuffer) {
1819 rvfree(meye.grab_fbuffer, gbuffers*gbufsize);
1820 meye.grab_fbuffer = NULL;
1821 }
1822
1823 printk(KERN_INFO "meye: removed\n");
1824 }
1825
1826 static struct pci_device_id meye_pci_tbl[] = {
1827 { PCI_VDEVICE(KAWASAKI, PCI_DEVICE_ID_MCHIP_KL5A72002), 0 },
1828 { }
1829 };
1830
1831 MODULE_DEVICE_TABLE(pci, meye_pci_tbl);
1832
1833 static struct pci_driver meye_driver = {
1834 .name = "meye",
1835 .id_table = meye_pci_tbl,
1836 .probe = meye_probe,
1837 .remove = meye_remove,
1838 #ifdef CONFIG_PM
1839 .suspend = meye_suspend,
1840 .resume = meye_resume,
1841 #endif
1842 };
1843
1844 static int __init meye_init(void)
1845 {
1846 gbuffers = max(2, min((int)gbuffers, MEYE_MAX_BUFNBRS));
1847 if (gbufsize > MEYE_MAX_BUFSIZE)
1848 gbufsize = MEYE_MAX_BUFSIZE;
1849 gbufsize = PAGE_ALIGN(gbufsize);
1850 printk(KERN_INFO "meye: using %d buffers with %dk (%dk total) "
1851 "for capture\n",
1852 gbuffers,
1853 gbufsize / 1024, gbuffers * gbufsize / 1024);
1854 return pci_register_driver(&meye_driver);
1855 }
1856
1857 static void __exit meye_exit(void)
1858 {
1859 pci_unregister_driver(&meye_driver);
1860 }
1861
1862 module_init(meye_init);
1863 module_exit(meye_exit);
Linux with added FPC-III support