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16#include <linux/module.h>
17#include <linux/pci.h>
18#include <linux/sched.h>
19#include <linux/init.h>
20#include <linux/gfp.h>
21#include <linux/videodev2.h>
22#include <media/v4l2-common.h>
23#include <media/v4l2-device.h>
24#include <media/v4l2-ioctl.h>
25#include <media/v4l2-fh.h>
26#include <media/v4l2-event.h>
27#include <linux/uaccess.h>
28#include <asm/io.h>
29#include <linux/delay.h>
30#include <linux/interrupt.h>
31#include <linux/vmalloc.h>
32#include <linux/dma-mapping.h>
33
34#include "meye.h"
35#include <linux/meye.h>
36
37MODULE_AUTHOR("Stelian Pop <stelian@popies.net>");
38MODULE_DESCRIPTION("v4l2 driver for the MotionEye camera");
39MODULE_LICENSE("GPL");
40MODULE_VERSION(MEYE_DRIVER_VERSION);
41
42
43static unsigned int gbuffers = 2;
44module_param(gbuffers, int, 0444);
45MODULE_PARM_DESC(gbuffers, "number of capture buffers, default is 2 (32 max)");
46
47
48static unsigned int gbufsize = MEYE_MAX_BUFSIZE;
49module_param(gbufsize, int, 0444);
50MODULE_PARM_DESC(gbufsize, "size of the capture buffers, default is 614400 (will be rounded up to a page multiple)");
51
52
53static int video_nr = -1;
54module_param(video_nr, int, 0444);
55MODULE_PARM_DESC(video_nr, "video device to register (0=/dev/video0, etc)");
56
57
58static struct meye meye;
59
60
61
62
63static void *rvmalloc(unsigned long size)
64{
65 void *mem;
66 unsigned long adr;
67
68 size = PAGE_ALIGN(size);
69 mem = vmalloc_32(size);
70 if (mem) {
71 memset(mem, 0, size);
72 adr = (unsigned long) mem;
73 while (size > 0) {
74 SetPageReserved(vmalloc_to_page((void *)adr));
75 adr += PAGE_SIZE;
76 size -= PAGE_SIZE;
77 }
78 }
79 return mem;
80}
81
82static void rvfree(void * mem, unsigned long size)
83{
84 unsigned long adr;
85
86 if (mem) {
87 adr = (unsigned long) mem;
88 while ((long) size > 0) {
89 ClearPageReserved(vmalloc_to_page((void *)adr));
90 adr += PAGE_SIZE;
91 size -= PAGE_SIZE;
92 }
93 vfree(mem);
94 }
95}
96
97
98
99
100
101
102
103static int ptable_alloc(void)
104{
105 u32 *pt;
106 int i;
107
108 memset(meye.mchip_ptable, 0, sizeof(meye.mchip_ptable));
109
110
111 if (dma_set_mask(&meye.mchip_dev->dev, DMA_BIT_MASK(32)))
112 return -1;
113
114 meye.mchip_ptable_toc = dma_alloc_coherent(&meye.mchip_dev->dev,
115 PAGE_SIZE,
116 &meye.mchip_dmahandle,
117 GFP_KERNEL);
118 if (!meye.mchip_ptable_toc) {
119 meye.mchip_dmahandle = 0;
120 return -1;
121 }
122
123 pt = meye.mchip_ptable_toc;
124 for (i = 0; i < MCHIP_NB_PAGES; i++) {
125 dma_addr_t dma;
126 meye.mchip_ptable[i] = dma_alloc_coherent(&meye.mchip_dev->dev,
127 PAGE_SIZE,
128 &dma,
129 GFP_KERNEL);
130 if (!meye.mchip_ptable[i]) {
131 int j;
132 pt = meye.mchip_ptable_toc;
133 for (j = 0; j < i; ++j) {
134 dma = (dma_addr_t) *pt;
135 dma_free_coherent(&meye.mchip_dev->dev,
136 PAGE_SIZE,
137 meye.mchip_ptable[j], dma);
138 pt++;
139 }
140 dma_free_coherent(&meye.mchip_dev->dev,
141 PAGE_SIZE,
142 meye.mchip_ptable_toc,
143 meye.mchip_dmahandle);
144 meye.mchip_ptable_toc = NULL;
145 meye.mchip_dmahandle = 0;
146 return -1;
147 }
148 *pt = (u32) dma;
149 pt++;
150 }
151 return 0;
152}
153
154static void ptable_free(void)
155{
156 u32 *pt;
157 int i;
158
159 pt = meye.mchip_ptable_toc;
160 for (i = 0; i < MCHIP_NB_PAGES; i++) {
161 dma_addr_t dma = (dma_addr_t) *pt;
162 if (meye.mchip_ptable[i])
163 dma_free_coherent(&meye.mchip_dev->dev,
164 PAGE_SIZE,
165 meye.mchip_ptable[i], dma);
166 pt++;
167 }
168
169 if (meye.mchip_ptable_toc)
170 dma_free_coherent(&meye.mchip_dev->dev,
171 PAGE_SIZE,
172 meye.mchip_ptable_toc,
173 meye.mchip_dmahandle);
174
175 memset(meye.mchip_ptable, 0, sizeof(meye.mchip_ptable));
176 meye.mchip_ptable_toc = NULL;
177 meye.mchip_dmahandle = 0;
178}
179
180
181static void ptable_copy(u8 *buf, int start, int size, int pt_pages)
182{
183 int i;
184
185 for (i = 0; i < (size / PAGE_SIZE) * PAGE_SIZE; i += PAGE_SIZE) {
186 memcpy(buf + i, meye.mchip_ptable[start++], PAGE_SIZE);
187 if (start >= pt_pages)
188 start = 0;
189 }
190 memcpy(buf + i, meye.mchip_ptable[start], size % PAGE_SIZE);
191}
192
193
194
195
196
197
198static u16 *jpeg_quantisation_tables(int *length, int quality)
199{
200 static u16 jpeg_tables[][70] = { {
201 0xdbff, 0x4300, 0xff00, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
202 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
203 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
204 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
205 0xffff, 0xffff, 0xffff,
206 0xdbff, 0x4300, 0xff01, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
207 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
208 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
209 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
210 0xffff, 0xffff, 0xffff,
211 },
212 {
213 0xdbff, 0x4300, 0x5000, 0x3c37, 0x3c46, 0x5032, 0x4146, 0x5a46,
214 0x5055, 0x785f, 0x82c8, 0x6e78, 0x786e, 0xaff5, 0x91b9, 0xffc8,
215 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
216 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
217 0xffff, 0xffff, 0xffff,
218 0xdbff, 0x4300, 0x5501, 0x5a5a, 0x6978, 0xeb78, 0x8282, 0xffeb,
219 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
220 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
221 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
222 0xffff, 0xffff, 0xffff,
223 },
224 {
225 0xdbff, 0x4300, 0x2800, 0x1e1c, 0x1e23, 0x2819, 0x2123, 0x2d23,
226 0x282b, 0x3c30, 0x4164, 0x373c, 0x3c37, 0x587b, 0x495d, 0x9164,
227 0x9980, 0x8f96, 0x8c80, 0xa08a, 0xe6b4, 0xa0c3, 0xdaaa, 0x8aad,
228 0xc88c, 0xcbff, 0xeeda, 0xfff5, 0xffff, 0xc19b, 0xffff, 0xfaff,
229 0xe6ff, 0xfffd, 0xfff8,
230 0xdbff, 0x4300, 0x2b01, 0x2d2d, 0x353c, 0x763c, 0x4141, 0xf876,
231 0x8ca5, 0xf8a5, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8,
232 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8,
233 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8, 0xf8f8,
234 0xf8f8, 0xf8f8, 0xfff8,
235 },
236 {
237 0xdbff, 0x4300, 0x1b00, 0x1412, 0x1417, 0x1b11, 0x1617, 0x1e17,
238 0x1b1c, 0x2820, 0x2b42, 0x2528, 0x2825, 0x3a51, 0x303d, 0x6042,
239 0x6555, 0x5f64, 0x5d55, 0x6a5b, 0x9978, 0x6a81, 0x9071, 0x5b73,
240 0x855d, 0x86b5, 0x9e90, 0xaba3, 0xabad, 0x8067, 0xc9bc, 0xa6ba,
241 0x99c7, 0xaba8, 0xffa4,
242 0xdbff, 0x4300, 0x1c01, 0x1e1e, 0x2328, 0x4e28, 0x2b2b, 0xa44e,
243 0x5d6e, 0xa46e, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4,
244 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4,
245 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4, 0xa4a4,
246 0xa4a4, 0xa4a4, 0xffa4,
247 },
248 {
249 0xdbff, 0x4300, 0x1400, 0x0f0e, 0x0f12, 0x140d, 0x1012, 0x1712,
250 0x1415, 0x1e18, 0x2132, 0x1c1e, 0x1e1c, 0x2c3d, 0x242e, 0x4932,
251 0x4c40, 0x474b, 0x4640, 0x5045, 0x735a, 0x5062, 0x6d55, 0x4556,
252 0x6446, 0x6588, 0x776d, 0x817b, 0x8182, 0x604e, 0x978d, 0x7d8c,
253 0x7396, 0x817e, 0xff7c,
254 0xdbff, 0x4300, 0x1501, 0x1717, 0x1a1e, 0x3b1e, 0x2121, 0x7c3b,
255 0x4653, 0x7c53, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c,
256 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c,
257 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c, 0x7c7c,
258 0x7c7c, 0x7c7c, 0xff7c,
259 },
260 {
261 0xdbff, 0x4300, 0x1000, 0x0c0b, 0x0c0e, 0x100a, 0x0d0e, 0x120e,
262 0x1011, 0x1813, 0x1a28, 0x1618, 0x1816, 0x2331, 0x1d25, 0x3a28,
263 0x3d33, 0x393c, 0x3833, 0x4037, 0x5c48, 0x404e, 0x5744, 0x3745,
264 0x5038, 0x516d, 0x5f57, 0x6762, 0x6768, 0x4d3e, 0x7971, 0x6470,
265 0x5c78, 0x6765, 0xff63,
266 0xdbff, 0x4300, 0x1101, 0x1212, 0x1518, 0x2f18, 0x1a1a, 0x632f,
267 0x3842, 0x6342, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363,
268 0x6363, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363,
269 0x6363, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363, 0x6363,
270 0x6363, 0x6363, 0xff63,
271 },
272 {
273 0xdbff, 0x4300, 0x0d00, 0x0a09, 0x0a0b, 0x0d08, 0x0a0b, 0x0e0b,
274 0x0d0e, 0x130f, 0x1520, 0x1213, 0x1312, 0x1c27, 0x171e, 0x2e20,
275 0x3129, 0x2e30, 0x2d29, 0x332c, 0x4a3a, 0x333e, 0x4636, 0x2c37,
276 0x402d, 0x4157, 0x4c46, 0x524e, 0x5253, 0x3e32, 0x615a, 0x505a,
277 0x4a60, 0x5251, 0xff4f,
278 0xdbff, 0x4300, 0x0e01, 0x0e0e, 0x1113, 0x2613, 0x1515, 0x4f26,
279 0x2d35, 0x4f35, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f,
280 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f,
281 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f, 0x4f4f,
282 0x4f4f, 0x4f4f, 0xff4f,
283 },
284 {
285 0xdbff, 0x4300, 0x0a00, 0x0707, 0x0708, 0x0a06, 0x0808, 0x0b08,
286 0x0a0a, 0x0e0b, 0x1018, 0x0d0e, 0x0e0d, 0x151d, 0x1116, 0x2318,
287 0x251f, 0x2224, 0x221f, 0x2621, 0x372b, 0x262f, 0x3429, 0x2129,
288 0x3022, 0x3141, 0x3934, 0x3e3b, 0x3e3e, 0x2e25, 0x4944, 0x3c43,
289 0x3748, 0x3e3d, 0xff3b,
290 0xdbff, 0x4300, 0x0a01, 0x0b0b, 0x0d0e, 0x1c0e, 0x1010, 0x3b1c,
291 0x2228, 0x3b28, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b,
292 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b,
293 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b, 0x3b3b,
294 0x3b3b, 0x3b3b, 0xff3b,
295 },
296 {
297 0xdbff, 0x4300, 0x0600, 0x0504, 0x0506, 0x0604, 0x0506, 0x0706,
298 0x0607, 0x0a08, 0x0a10, 0x090a, 0x0a09, 0x0e14, 0x0c0f, 0x1710,
299 0x1814, 0x1718, 0x1614, 0x1a16, 0x251d, 0x1a1f, 0x231b, 0x161c,
300 0x2016, 0x202c, 0x2623, 0x2927, 0x292a, 0x1f19, 0x302d, 0x282d,
301 0x2530, 0x2928, 0xff28,
302 0xdbff, 0x4300, 0x0701, 0x0707, 0x080a, 0x130a, 0x0a0a, 0x2813,
303 0x161a, 0x281a, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828,
304 0x2828, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828,
305 0x2828, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828, 0x2828,
306 0x2828, 0x2828, 0xff28,
307 },
308 {
309 0xdbff, 0x4300, 0x0300, 0x0202, 0x0203, 0x0302, 0x0303, 0x0403,
310 0x0303, 0x0504, 0x0508, 0x0405, 0x0504, 0x070a, 0x0607, 0x0c08,
311 0x0c0a, 0x0b0c, 0x0b0a, 0x0d0b, 0x120e, 0x0d10, 0x110e, 0x0b0e,
312 0x100b, 0x1016, 0x1311, 0x1514, 0x1515, 0x0f0c, 0x1817, 0x1416,
313 0x1218, 0x1514, 0xff14,
314 0xdbff, 0x4300, 0x0301, 0x0404, 0x0405, 0x0905, 0x0505, 0x1409,
315 0x0b0d, 0x140d, 0x1414, 0x1414, 0x1414, 0x1414, 0x1414, 0x1414,
316 0x1414, 0x1414, 0x1414, 0x1414, 0x1414, 0x1414, 0x1414, 0x1414,
317 0x1414, 0x1414, 0x1414, 0x1414, 0x1414, 0x1414, 0x1414, 0x1414,
318 0x1414, 0x1414, 0xff14,
319 },
320 {
321 0xdbff, 0x4300, 0x0100, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101,
322 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101,
323 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101,
324 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101,
325 0x0101, 0x0101, 0xff01,
326 0xdbff, 0x4300, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101,
327 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101,
328 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101,
329 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101, 0x0101,
330 0x0101, 0x0101, 0xff01,
331 } };
332
333 if (quality < 0 || quality > 10) {
334 printk(KERN_WARNING
335 "meye: invalid quality level %d - using 8\n", quality);
336 quality = 8;
337 }
338
339 *length = ARRAY_SIZE(jpeg_tables[quality]);
340 return jpeg_tables[quality];
341}
342
343
344static u16 *jpeg_huffman_tables(int *length)
345{
346 static u16 tables[] = {
347 0xC4FF, 0xB500, 0x0010, 0x0102, 0x0303, 0x0402, 0x0503, 0x0405,
348 0x0004, 0x0100, 0x017D, 0x0302, 0x0400, 0x0511, 0x2112, 0x4131,
349 0x1306, 0x6151, 0x2207, 0x1471, 0x8132, 0xA191, 0x2308, 0xB142,
350 0x15C1, 0xD152, 0x24F0, 0x6233, 0x8272, 0x0A09, 0x1716, 0x1918,
351 0x251A, 0x2726, 0x2928, 0x342A, 0x3635, 0x3837, 0x3A39, 0x4443,
352 0x4645, 0x4847, 0x4A49, 0x5453, 0x5655, 0x5857, 0x5A59, 0x6463,
353 0x6665, 0x6867, 0x6A69, 0x7473, 0x7675, 0x7877, 0x7A79, 0x8483,
354 0x8685, 0x8887, 0x8A89, 0x9392, 0x9594, 0x9796, 0x9998, 0xA29A,
355 0xA4A3, 0xA6A5, 0xA8A7, 0xAAA9, 0xB3B2, 0xB5B4, 0xB7B6, 0xB9B8,
356 0xC2BA, 0xC4C3, 0xC6C5, 0xC8C7, 0xCAC9, 0xD3D2, 0xD5D4, 0xD7D6,
357 0xD9D8, 0xE1DA, 0xE3E2, 0xE5E4, 0xE7E6, 0xE9E8, 0xF1EA, 0xF3F2,
358 0xF5F4, 0xF7F6, 0xF9F8, 0xFFFA,
359 0xC4FF, 0xB500, 0x0011, 0x0102, 0x0402, 0x0304, 0x0704, 0x0405,
360 0x0004, 0x0201, 0x0077, 0x0201, 0x1103, 0x0504, 0x3121, 0x1206,
361 0x5141, 0x6107, 0x1371, 0x3222, 0x0881, 0x4214, 0xA191, 0xC1B1,
362 0x2309, 0x5233, 0x15F0, 0x7262, 0x0AD1, 0x2416, 0xE134, 0xF125,
363 0x1817, 0x1A19, 0x2726, 0x2928, 0x352A, 0x3736, 0x3938, 0x433A,
364 0x4544, 0x4746, 0x4948, 0x534A, 0x5554, 0x5756, 0x5958, 0x635A,
365 0x6564, 0x6766, 0x6968, 0x736A, 0x7574, 0x7776, 0x7978, 0x827A,
366 0x8483, 0x8685, 0x8887, 0x8A89, 0x9392, 0x9594, 0x9796, 0x9998,
367 0xA29A, 0xA4A3, 0xA6A5, 0xA8A7, 0xAAA9, 0xB3B2, 0xB5B4, 0xB7B6,
368 0xB9B8, 0xC2BA, 0xC4C3, 0xC6C5, 0xC8C7, 0xCAC9, 0xD3D2, 0xD5D4,
369 0xD7D6, 0xD9D8, 0xE2DA, 0xE4E3, 0xE6E5, 0xE8E7, 0xEAE9, 0xF3F2,
370 0xF5F4, 0xF7F6, 0xF9F8, 0xFFFA,
371 0xC4FF, 0x1F00, 0x0000, 0x0501, 0x0101, 0x0101, 0x0101, 0x0000,
372 0x0000, 0x0000, 0x0000, 0x0201, 0x0403, 0x0605, 0x0807, 0x0A09,
373 0xFF0B,
374 0xC4FF, 0x1F00, 0x0001, 0x0103, 0x0101, 0x0101, 0x0101, 0x0101,
375 0x0000, 0x0000, 0x0000, 0x0201, 0x0403, 0x0605, 0x0807, 0x0A09,
376 0xFF0B
377 };
378
379 *length = ARRAY_SIZE(tables);
380 return tables;
381}
382
383
384
385
386
387
388static inline int mchip_hsize(void)
389{
390 return meye.params.subsample ? 320 : 640;
391}
392
393
394static inline int mchip_vsize(void)
395{
396 return meye.params.subsample ? 240 : 480;
397}
398
399
400static void mchip_sync(int reg)
401{
402 u32 status;
403 int i;
404
405 if (reg == MCHIP_MM_FIFO_DATA) {
406 for (i = 0; i < MCHIP_REG_TIMEOUT; i++) {
407 status = readl(meye.mchip_mmregs +
408 MCHIP_MM_FIFO_STATUS);
409 if (!(status & MCHIP_MM_FIFO_WAIT)) {
410 printk(KERN_WARNING "meye: fifo not ready\n");
411 return;
412 }
413 if (status & MCHIP_MM_FIFO_READY)
414 return;
415 udelay(1);
416 }
417 } else if (reg > 0x80) {
418 u32 mask = (reg < 0x100) ? MCHIP_HIC_STATUS_MCC_RDY
419 : MCHIP_HIC_STATUS_VRJ_RDY;
420 for (i = 0; i < MCHIP_REG_TIMEOUT; i++) {
421 status = readl(meye.mchip_mmregs + MCHIP_HIC_STATUS);
422 if (status & mask)
423 return;
424 udelay(1);
425 }
426 } else
427 return;
428 printk(KERN_WARNING
429 "meye: mchip_sync() timeout on reg 0x%x status=0x%x\n",
430 reg, status);
431}
432
433
434static inline void mchip_set(int reg, u32 v)
435{
436 mchip_sync(reg);
437 writel(v, meye.mchip_mmregs + reg);
438}
439
440
441static inline u32 mchip_read(int reg)
442{
443 mchip_sync(reg);
444 return readl(meye.mchip_mmregs + reg);
445}
446
447
448static inline int mchip_delay(u32 reg, u32 v)
449{
450 int n = 10;
451 while (--n && mchip_read(reg) != v)
452 udelay(1);
453 return n;
454}
455
456
457static void mchip_subsample(void)
458{
459 mchip_set(MCHIP_MCC_R_SAMPLING, meye.params.subsample);
460 mchip_set(MCHIP_MCC_R_XRANGE, mchip_hsize());
461 mchip_set(MCHIP_MCC_R_YRANGE, mchip_vsize());
462 mchip_set(MCHIP_MCC_B_XRANGE, mchip_hsize());
463 mchip_set(MCHIP_MCC_B_YRANGE, mchip_vsize());
464 mchip_delay(MCHIP_HIC_STATUS, MCHIP_HIC_STATUS_IDLE);
465}
466
467
468static void mchip_set_framerate(void)
469{
470 mchip_set(MCHIP_HIC_S_RATE, meye.params.framerate);
471}
472
473
474
475static void mchip_load_tables(void)
476{
477 int i;
478 int length;
479 u16 *tables;
480
481 tables = jpeg_huffman_tables(&length);
482 for (i = 0; i < length; i++)
483 writel(tables[i], meye.mchip_mmregs + MCHIP_VRJ_TABLE_DATA);
484
485 tables = jpeg_quantisation_tables(&length, meye.params.quality);
486 for (i = 0; i < length; i++)
487 writel(tables[i], meye.mchip_mmregs + MCHIP_VRJ_TABLE_DATA);
488}
489
490
491static void mchip_vrj_setup(u8 mode)
492{
493 mchip_set(MCHIP_VRJ_BUS_MODE, 5);
494 mchip_set(MCHIP_VRJ_SIGNAL_ACTIVE_LEVEL, 0x1f);
495 mchip_set(MCHIP_VRJ_PDAT_USE, 1);
496 mchip_set(MCHIP_VRJ_IRQ_FLAG, 0xa0);
497 mchip_set(MCHIP_VRJ_MODE_SPECIFY, mode);
498 mchip_set(MCHIP_VRJ_NUM_LINES, mchip_vsize());
499 mchip_set(MCHIP_VRJ_NUM_PIXELS, mchip_hsize());
500 mchip_set(MCHIP_VRJ_NUM_COMPONENTS, 0x1b);
501 mchip_set(MCHIP_VRJ_LIMIT_COMPRESSED_LO, 0xFFFF);
502 mchip_set(MCHIP_VRJ_LIMIT_COMPRESSED_HI, 0xFFFF);
503 mchip_set(MCHIP_VRJ_COMP_DATA_FORMAT, 0xC);
504 mchip_set(MCHIP_VRJ_RESTART_INTERVAL, 0);
505 mchip_set(MCHIP_VRJ_SOF1, 0x601);
506 mchip_set(MCHIP_VRJ_SOF2, 0x1502);
507 mchip_set(MCHIP_VRJ_SOF3, 0x1503);
508 mchip_set(MCHIP_VRJ_SOF4, 0x1596);
509 mchip_set(MCHIP_VRJ_SOS, 0x0ed0);
510
511 mchip_load_tables();
512}
513
514
515static void mchip_dma_setup(dma_addr_t dma_addr)
516{
517 int i;
518
519 mchip_set(MCHIP_MM_PT_ADDR, (u32)dma_addr);
520 for (i = 0; i < 4; i++)
521 mchip_set(MCHIP_MM_FIR(i), 0);
522 meye.mchip_fnum = 0;
523}
524
525
526static int mchip_dma_alloc(void)
527{
528 if (!meye.mchip_dmahandle)
529 if (ptable_alloc())
530 return -1;
531 return 0;
532}
533
534
535static void mchip_dma_free(void)
536{
537 if (meye.mchip_dmahandle) {
538 mchip_dma_setup(0);
539 ptable_free();
540 }
541}
542
543
544
545static void mchip_hic_stop(void)
546{
547 int i, j;
548
549 meye.mchip_mode = MCHIP_HIC_MODE_NOOP;
550 if (!(mchip_read(MCHIP_HIC_STATUS) & MCHIP_HIC_STATUS_BUSY))
551 return;
552 for (i = 0; i < 20; ++i) {
553 mchip_set(MCHIP_HIC_CMD, MCHIP_HIC_CMD_STOP);
554 mchip_delay(MCHIP_HIC_CMD, 0);
555 for (j = 0; j < 100; ++j) {
556 if (mchip_delay(MCHIP_HIC_STATUS,
557 MCHIP_HIC_STATUS_IDLE))
558 return;
559 msleep(1);
560 }
561 printk(KERN_ERR "meye: need to reset HIC!\n");
562
563 mchip_set(MCHIP_HIC_CTL, MCHIP_HIC_CTL_SOFT_RESET);
564 msleep(250);
565 }
566 printk(KERN_ERR "meye: resetting HIC hanged!\n");
567}
568
569
570
571
572
573
574static u32 mchip_get_frame(void)
575{
576 return mchip_read(MCHIP_MM_FIR(meye.mchip_fnum));
577}
578
579
580static void mchip_free_frame(void)
581{
582 mchip_set(MCHIP_MM_FIR(meye.mchip_fnum), 0);
583 meye.mchip_fnum++;
584 meye.mchip_fnum %= 4;
585}
586
587
588
589static void mchip_cont_read_frame(u32 v, u8 *buf, int size)
590{
591 int pt_id;
592
593 pt_id = (v >> 17) & 0x3FF;
594
595 ptable_copy(buf, pt_id, size, MCHIP_NB_PAGES);
596}
597
598
599static int mchip_comp_read_frame(u32 v, u8 *buf, int size)
600{
601 int pt_start, pt_end, trailer;
602 int fsize;
603 int i;
604
605 pt_start = (v >> 19) & 0xFF;
606 pt_end = (v >> 11) & 0xFF;
607 trailer = (v >> 1) & 0x3FF;
608
609 if (pt_end < pt_start)
610 fsize = (MCHIP_NB_PAGES_MJPEG - pt_start) * PAGE_SIZE +
611 pt_end * PAGE_SIZE + trailer * 4;
612 else
613 fsize = (pt_end - pt_start) * PAGE_SIZE + trailer * 4;
614
615 if (fsize > size) {
616 printk(KERN_WARNING "meye: oversized compressed frame %d\n",
617 fsize);
618 return -1;
619 }
620
621 ptable_copy(buf, pt_start, fsize, MCHIP_NB_PAGES_MJPEG);
622
623#ifdef MEYE_JPEG_CORRECTION
624
625
626
627
628
629
630
631
632
633 for (i = fsize - 1; i > 0 && buf[i] == 0xff; i--) ;
634
635 if (i < 2 || buf[i - 1] != 0xff || buf[i] != 0xd9)
636 return -1;
637
638#endif
639
640 return fsize;
641}
642
643
644static void mchip_take_picture(void)
645{
646 int i;
647
648 mchip_hic_stop();
649 mchip_subsample();
650 mchip_dma_setup(meye.mchip_dmahandle);
651
652 mchip_set(MCHIP_HIC_MODE, MCHIP_HIC_MODE_STILL_CAP);
653 mchip_set(MCHIP_HIC_CMD, MCHIP_HIC_CMD_START);
654
655 mchip_delay(MCHIP_HIC_CMD, 0);
656
657 for (i = 0; i < 100; ++i) {
658 if (mchip_delay(MCHIP_HIC_STATUS, MCHIP_HIC_STATUS_IDLE))
659 break;
660 msleep(1);
661 }
662}
663
664
665static void mchip_get_picture(u8 *buf, int bufsize)
666{
667 u32 v;
668 int i;
669
670 mchip_set(MCHIP_HIC_MODE, MCHIP_HIC_MODE_STILL_OUT);
671 mchip_set(MCHIP_HIC_CMD, MCHIP_HIC_CMD_START);
672
673 mchip_delay(MCHIP_HIC_CMD, 0);
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 for (i = 0; i < 4; ++i) {
680 v = mchip_get_frame();
681 if (v & MCHIP_MM_FIR_RDY) {
682 mchip_cont_read_frame(v, buf, bufsize);
683 break;
684 }
685 mchip_free_frame();
686 }
687}
688
689
690static void mchip_continuous_start(void)
691{
692 mchip_hic_stop();
693 mchip_subsample();
694 mchip_set_framerate();
695 mchip_dma_setup(meye.mchip_dmahandle);
696
697 meye.mchip_mode = MCHIP_HIC_MODE_CONT_OUT;
698
699 mchip_set(MCHIP_HIC_MODE, MCHIP_HIC_MODE_CONT_OUT);
700 mchip_set(MCHIP_HIC_CMD, MCHIP_HIC_CMD_START);
701
702 mchip_delay(MCHIP_HIC_CMD, 0);
703}
704
705
706static int mchip_compress_frame(u8 *buf, int bufsize)
707{
708 u32 v;
709 int len = -1, i;
710
711 mchip_vrj_setup(0x3f);
712 udelay(50);
713
714 mchip_set(MCHIP_HIC_MODE, MCHIP_HIC_MODE_STILL_COMP);
715 mchip_set(MCHIP_HIC_CMD, MCHIP_HIC_CMD_START);
716
717 mchip_delay(MCHIP_HIC_CMD, 0);
718 for (i = 0; i < 100; ++i) {
719 if (mchip_delay(MCHIP_HIC_STATUS, MCHIP_HIC_STATUS_IDLE))
720 break;
721 msleep(1);
722 }
723
724 for (i = 0; i < 4; ++i) {
725 v = mchip_get_frame();
726 if (v & MCHIP_MM_FIR_RDY) {
727 len = mchip_comp_read_frame(v, buf, bufsize);
728 break;
729 }
730 mchip_free_frame();
731 }
732 return len;
733}
734
735#if 0
736
737static int mchip_uncompress_frame(u8 *img, int imgsize, u8 *buf, int bufsize)
738{
739 mchip_vrj_setup(0x3f);
740 udelay(50);
741
742 mchip_set(MCHIP_HIC_MODE, MCHIP_HIC_MODE_STILL_DECOMP);
743 mchip_set(MCHIP_HIC_CMD, MCHIP_HIC_CMD_START);
744
745 mchip_delay(MCHIP_HIC_CMD, 0);
746
747 return mchip_comp_read_frame(buf, bufsize);
748}
749#endif
750
751
752static void mchip_cont_compression_start(void)
753{
754 mchip_hic_stop();
755 mchip_vrj_setup(0x3f);
756 mchip_subsample();
757 mchip_set_framerate();
758 mchip_dma_setup(meye.mchip_dmahandle);
759
760 meye.mchip_mode = MCHIP_HIC_MODE_CONT_COMP;
761
762 mchip_set(MCHIP_HIC_MODE, MCHIP_HIC_MODE_CONT_COMP);
763 mchip_set(MCHIP_HIC_CMD, MCHIP_HIC_CMD_START);
764
765 mchip_delay(MCHIP_HIC_CMD, 0);
766}
767
768
769
770
771
772static irqreturn_t meye_irq(int irq, void *dev_id)
773{
774 u32 v;
775 int reqnr;
776 static int sequence;
777
778 v = mchip_read(MCHIP_MM_INTA);
779
780 if (meye.mchip_mode != MCHIP_HIC_MODE_CONT_OUT &&
781 meye.mchip_mode != MCHIP_HIC_MODE_CONT_COMP)
782 return IRQ_NONE;
783
784again:
785 v = mchip_get_frame();
786 if (!(v & MCHIP_MM_FIR_RDY))
787 return IRQ_HANDLED;
788
789 if (meye.mchip_mode == MCHIP_HIC_MODE_CONT_OUT) {
790 if (kfifo_out_locked(&meye.grabq, (unsigned char *)&reqnr,
791 sizeof(int), &meye.grabq_lock) != sizeof(int)) {
792 mchip_free_frame();
793 return IRQ_HANDLED;
794 }
795 mchip_cont_read_frame(v, meye.grab_fbuffer + gbufsize * reqnr,
796 mchip_hsize() * mchip_vsize() * 2);
797 meye.grab_buffer[reqnr].size = mchip_hsize() * mchip_vsize() * 2;
798 meye.grab_buffer[reqnr].state = MEYE_BUF_DONE;
799 meye.grab_buffer[reqnr].ts = ktime_get_ns();
800 meye.grab_buffer[reqnr].sequence = sequence++;
801 kfifo_in_locked(&meye.doneq, (unsigned char *)&reqnr,
802 sizeof(int), &meye.doneq_lock);
803 wake_up_interruptible(&meye.proc_list);
804 } else {
805 int size;
806 size = mchip_comp_read_frame(v, meye.grab_temp, gbufsize);
807 if (size == -1) {
808 mchip_free_frame();
809 goto again;
810 }
811 if (kfifo_out_locked(&meye.grabq, (unsigned char *)&reqnr,
812 sizeof(int), &meye.grabq_lock) != sizeof(int)) {
813 mchip_free_frame();
814 goto again;
815 }
816 memcpy(meye.grab_fbuffer + gbufsize * reqnr, meye.grab_temp,
817 size);
818 meye.grab_buffer[reqnr].size = size;
819 meye.grab_buffer[reqnr].state = MEYE_BUF_DONE;
820 meye.grab_buffer[reqnr].ts = ktime_get_ns();
821 meye.grab_buffer[reqnr].sequence = sequence++;
822 kfifo_in_locked(&meye.doneq, (unsigned char *)&reqnr,
823 sizeof(int), &meye.doneq_lock);
824 wake_up_interruptible(&meye.proc_list);
825 }
826 mchip_free_frame();
827 goto again;
828}
829
830
831
832
833
834static int meye_open(struct file *file)
835{
836 int i;
837
838 if (test_and_set_bit(0, &meye.in_use))
839 return -EBUSY;
840
841 mchip_hic_stop();
842
843 if (mchip_dma_alloc()) {
844 printk(KERN_ERR "meye: mchip framebuffer allocation failed\n");
845 clear_bit(0, &meye.in_use);
846 return -ENOBUFS;
847 }
848
849 for (i = 0; i < MEYE_MAX_BUFNBRS; i++)
850 meye.grab_buffer[i].state = MEYE_BUF_UNUSED;
851 kfifo_reset(&meye.grabq);
852 kfifo_reset(&meye.doneq);
853 return v4l2_fh_open(file);
854}
855
856static int meye_release(struct file *file)
857{
858 mchip_hic_stop();
859 mchip_dma_free();
860 clear_bit(0, &meye.in_use);
861 return v4l2_fh_release(file);
862}
863
864static int meyeioc_g_params(struct meye_params *p)
865{
866 *p = meye.params;
867 return 0;
868}
869
870static int meyeioc_s_params(struct meye_params *jp)
871{
872 if (jp->subsample > 1)
873 return -EINVAL;
874
875 if (jp->quality > 10)
876 return -EINVAL;
877
878 if (jp->sharpness > 63 || jp->agc > 63 || jp->picture > 63)
879 return -EINVAL;
880
881 if (jp->framerate > 31)
882 return -EINVAL;
883
884 mutex_lock(&meye.lock);
885
886 if (meye.params.subsample != jp->subsample ||
887 meye.params.quality != jp->quality)
888 mchip_hic_stop();
889
890 meye.params = *jp;
891 sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERASHARPNESS,
892 meye.params.sharpness);
893 sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERAAGC,
894 meye.params.agc);
895 sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERAPICTURE,
896 meye.params.picture);
897 mutex_unlock(&meye.lock);
898
899 return 0;
900}
901
902static int meyeioc_qbuf_capt(int *nb)
903{
904 if (!meye.grab_fbuffer)
905 return -EINVAL;
906
907 if (*nb >= gbuffers)
908 return -EINVAL;
909
910 if (*nb < 0) {
911
912 mchip_hic_stop();
913 return 0;
914 }
915
916 if (meye.grab_buffer[*nb].state != MEYE_BUF_UNUSED)
917 return -EBUSY;
918
919 mutex_lock(&meye.lock);
920
921 if (meye.mchip_mode != MCHIP_HIC_MODE_CONT_COMP)
922 mchip_cont_compression_start();
923
924 meye.grab_buffer[*nb].state = MEYE_BUF_USING;
925 kfifo_in_locked(&meye.grabq, (unsigned char *)nb, sizeof(int),
926 &meye.grabq_lock);
927 mutex_unlock(&meye.lock);
928
929 return 0;
930}
931
932static int meyeioc_sync(struct file *file, void *fh, int *i)
933{
934 int unused;
935
936 if (*i < 0 || *i >= gbuffers)
937 return -EINVAL;
938
939 mutex_lock(&meye.lock);
940 switch (meye.grab_buffer[*i].state) {
941
942 case MEYE_BUF_UNUSED:
943 mutex_unlock(&meye.lock);
944 return -EINVAL;
945 case MEYE_BUF_USING:
946 if (file->f_flags & O_NONBLOCK) {
947 mutex_unlock(&meye.lock);
948 return -EAGAIN;
949 }
950 if (wait_event_interruptible(meye.proc_list,
951 (meye.grab_buffer[*i].state != MEYE_BUF_USING))) {
952 mutex_unlock(&meye.lock);
953 return -EINTR;
954 }
955
956 case MEYE_BUF_DONE:
957 meye.grab_buffer[*i].state = MEYE_BUF_UNUSED;
958 if (kfifo_out_locked(&meye.doneq, (unsigned char *)&unused,
959 sizeof(int), &meye.doneq_lock) != sizeof(int))
960 break;
961 }
962 *i = meye.grab_buffer[*i].size;
963 mutex_unlock(&meye.lock);
964 return 0;
965}
966
967static int meyeioc_stillcapt(void)
968{
969 if (!meye.grab_fbuffer)
970 return -EINVAL;
971
972 if (meye.grab_buffer[0].state != MEYE_BUF_UNUSED)
973 return -EBUSY;
974
975 mutex_lock(&meye.lock);
976 meye.grab_buffer[0].state = MEYE_BUF_USING;
977 mchip_take_picture();
978
979 mchip_get_picture(meye.grab_fbuffer,
980 mchip_hsize() * mchip_vsize() * 2);
981
982 meye.grab_buffer[0].state = MEYE_BUF_DONE;
983 mutex_unlock(&meye.lock);
984
985 return 0;
986}
987
988static int meyeioc_stilljcapt(int *len)
989{
990 if (!meye.grab_fbuffer)
991 return -EINVAL;
992
993 if (meye.grab_buffer[0].state != MEYE_BUF_UNUSED)
994 return -EBUSY;
995
996 mutex_lock(&meye.lock);
997 meye.grab_buffer[0].state = MEYE_BUF_USING;
998 *len = -1;
999
1000 while (*len == -1) {
1001 mchip_take_picture();
1002 *len = mchip_compress_frame(meye.grab_fbuffer, gbufsize);
1003 }
1004
1005 meye.grab_buffer[0].state = MEYE_BUF_DONE;
1006 mutex_unlock(&meye.lock);
1007 return 0;
1008}
1009
1010static int vidioc_querycap(struct file *file, void *fh,
1011 struct v4l2_capability *cap)
1012{
1013 strscpy(cap->driver, "meye", sizeof(cap->driver));
1014 strscpy(cap->card, "meye", sizeof(cap->card));
1015 sprintf(cap->bus_info, "PCI:%s", pci_name(meye.mchip_dev));
1016 return 0;
1017}
1018
1019static int vidioc_enum_input(struct file *file, void *fh, struct v4l2_input *i)
1020{
1021 if (i->index != 0)
1022 return -EINVAL;
1023
1024 strscpy(i->name, "Camera", sizeof(i->name));
1025 i->type = V4L2_INPUT_TYPE_CAMERA;
1026
1027 return 0;
1028}
1029
1030static int vidioc_g_input(struct file *file, void *fh, unsigned int *i)
1031{
1032 *i = 0;
1033 return 0;
1034}
1035
1036static int vidioc_s_input(struct file *file, void *fh, unsigned int i)
1037{
1038 if (i != 0)
1039 return -EINVAL;
1040
1041 return 0;
1042}
1043
1044static int meye_s_ctrl(struct v4l2_ctrl *ctrl)
1045{
1046 mutex_lock(&meye.lock);
1047 switch (ctrl->id) {
1048 case V4L2_CID_BRIGHTNESS:
1049 sony_pic_camera_command(
1050 SONY_PIC_COMMAND_SETCAMERABRIGHTNESS, ctrl->val);
1051 meye.brightness = ctrl->val << 10;
1052 break;
1053 case V4L2_CID_HUE:
1054 sony_pic_camera_command(
1055 SONY_PIC_COMMAND_SETCAMERAHUE, ctrl->val);
1056 meye.hue = ctrl->val << 10;
1057 break;
1058 case V4L2_CID_CONTRAST:
1059 sony_pic_camera_command(
1060 SONY_PIC_COMMAND_SETCAMERACONTRAST, ctrl->val);
1061 meye.contrast = ctrl->val << 10;
1062 break;
1063 case V4L2_CID_SATURATION:
1064 sony_pic_camera_command(
1065 SONY_PIC_COMMAND_SETCAMERACOLOR, ctrl->val);
1066 meye.colour = ctrl->val << 10;
1067 break;
1068 case V4L2_CID_MEYE_AGC:
1069 sony_pic_camera_command(
1070 SONY_PIC_COMMAND_SETCAMERAAGC, ctrl->val);
1071 meye.params.agc = ctrl->val;
1072 break;
1073 case V4L2_CID_SHARPNESS:
1074 sony_pic_camera_command(
1075 SONY_PIC_COMMAND_SETCAMERASHARPNESS, ctrl->val);
1076 meye.params.sharpness = ctrl->val;
1077 break;
1078 case V4L2_CID_MEYE_PICTURE:
1079 sony_pic_camera_command(
1080 SONY_PIC_COMMAND_SETCAMERAPICTURE, ctrl->val);
1081 meye.params.picture = ctrl->val;
1082 break;
1083 case V4L2_CID_JPEG_COMPRESSION_QUALITY:
1084 meye.params.quality = ctrl->val;
1085 break;
1086 case V4L2_CID_MEYE_FRAMERATE:
1087 meye.params.framerate = ctrl->val;
1088 break;
1089 default:
1090 mutex_unlock(&meye.lock);
1091 return -EINVAL;
1092 }
1093 mutex_unlock(&meye.lock);
1094
1095 return 0;
1096}
1097
1098static int vidioc_enum_fmt_vid_cap(struct file *file, void *fh,
1099 struct v4l2_fmtdesc *f)
1100{
1101 if (f->index > 1)
1102 return -EINVAL;
1103
1104 if (f->index == 0) {
1105
1106 f->flags = 0;
1107 strscpy(f->description, "YUV422", sizeof(f->description));
1108 f->pixelformat = V4L2_PIX_FMT_YUYV;
1109 } else {
1110
1111 f->flags = V4L2_FMT_FLAG_COMPRESSED;
1112 strscpy(f->description, "MJPEG", sizeof(f->description));
1113 f->pixelformat = V4L2_PIX_FMT_MJPEG;
1114 }
1115
1116 return 0;
1117}
1118
1119static int vidioc_try_fmt_vid_cap(struct file *file, void *fh,
1120 struct v4l2_format *f)
1121{
1122 if (f->fmt.pix.pixelformat != V4L2_PIX_FMT_YUYV &&
1123 f->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG)
1124 return -EINVAL;
1125
1126 if (f->fmt.pix.field != V4L2_FIELD_ANY &&
1127 f->fmt.pix.field != V4L2_FIELD_NONE)
1128 return -EINVAL;
1129
1130 f->fmt.pix.field = V4L2_FIELD_NONE;
1131
1132 if (f->fmt.pix.width <= 320) {
1133 f->fmt.pix.width = 320;
1134 f->fmt.pix.height = 240;
1135 } else {
1136 f->fmt.pix.width = 640;
1137 f->fmt.pix.height = 480;
1138 }
1139
1140 f->fmt.pix.bytesperline = f->fmt.pix.width * 2;
1141 f->fmt.pix.sizeimage = f->fmt.pix.height *
1142 f->fmt.pix.bytesperline;
1143 f->fmt.pix.colorspace = 0;
1144
1145 return 0;
1146}
1147
1148static int vidioc_g_fmt_vid_cap(struct file *file, void *fh,
1149 struct v4l2_format *f)
1150{
1151 switch (meye.mchip_mode) {
1152 case MCHIP_HIC_MODE_CONT_OUT:
1153 default:
1154 f->fmt.pix.pixelformat = V4L2_PIX_FMT_YUYV;
1155 break;
1156 case MCHIP_HIC_MODE_CONT_COMP:
1157 f->fmt.pix.pixelformat = V4L2_PIX_FMT_MJPEG;
1158 break;
1159 }
1160
1161 f->fmt.pix.field = V4L2_FIELD_NONE;
1162 f->fmt.pix.width = mchip_hsize();
1163 f->fmt.pix.height = mchip_vsize();
1164 f->fmt.pix.bytesperline = f->fmt.pix.width * 2;
1165 f->fmt.pix.sizeimage = f->fmt.pix.height *
1166 f->fmt.pix.bytesperline;
1167
1168 return 0;
1169}
1170
1171static int vidioc_s_fmt_vid_cap(struct file *file, void *fh,
1172 struct v4l2_format *f)
1173{
1174 if (f->fmt.pix.pixelformat != V4L2_PIX_FMT_YUYV &&
1175 f->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG)
1176 return -EINVAL;
1177
1178 if (f->fmt.pix.field != V4L2_FIELD_ANY &&
1179 f->fmt.pix.field != V4L2_FIELD_NONE)
1180 return -EINVAL;
1181
1182 f->fmt.pix.field = V4L2_FIELD_NONE;
1183 mutex_lock(&meye.lock);
1184
1185 if (f->fmt.pix.width <= 320) {
1186 f->fmt.pix.width = 320;
1187 f->fmt.pix.height = 240;
1188 meye.params.subsample = 1;
1189 } else {
1190 f->fmt.pix.width = 640;
1191 f->fmt.pix.height = 480;
1192 meye.params.subsample = 0;
1193 }
1194
1195 switch (f->fmt.pix.pixelformat) {
1196 case V4L2_PIX_FMT_YUYV:
1197 meye.mchip_mode = MCHIP_HIC_MODE_CONT_OUT;
1198 break;
1199 case V4L2_PIX_FMT_MJPEG:
1200 meye.mchip_mode = MCHIP_HIC_MODE_CONT_COMP;
1201 break;
1202 }
1203
1204 mutex_unlock(&meye.lock);
1205 f->fmt.pix.bytesperline = f->fmt.pix.width * 2;
1206 f->fmt.pix.sizeimage = f->fmt.pix.height *
1207 f->fmt.pix.bytesperline;
1208 f->fmt.pix.colorspace = 0;
1209
1210 return 0;
1211}
1212
1213static int vidioc_reqbufs(struct file *file, void *fh,
1214 struct v4l2_requestbuffers *req)
1215{
1216 int i;
1217
1218 if (req->memory != V4L2_MEMORY_MMAP)
1219 return -EINVAL;
1220
1221 if (meye.grab_fbuffer && req->count == gbuffers) {
1222
1223 return 0;
1224 }
1225
1226 mutex_lock(&meye.lock);
1227 if (meye.grab_fbuffer) {
1228 for (i = 0; i < gbuffers; i++)
1229 if (meye.vma_use_count[i]) {
1230 mutex_unlock(&meye.lock);
1231 return -EINVAL;
1232 }
1233 rvfree(meye.grab_fbuffer, gbuffers * gbufsize);
1234 meye.grab_fbuffer = NULL;
1235 }
1236
1237 gbuffers = max(2, min((int)req->count, MEYE_MAX_BUFNBRS));
1238 req->count = gbuffers;
1239 meye.grab_fbuffer = rvmalloc(gbuffers * gbufsize);
1240
1241 if (!meye.grab_fbuffer) {
1242 printk(KERN_ERR "meye: v4l framebuffer allocation failed\n");
1243 mutex_unlock(&meye.lock);
1244 return -ENOMEM;
1245 }
1246
1247 for (i = 0; i < gbuffers; i++)
1248 meye.vma_use_count[i] = 0;
1249
1250 mutex_unlock(&meye.lock);
1251
1252 return 0;
1253}
1254
1255static int vidioc_querybuf(struct file *file, void *fh, struct v4l2_buffer *buf)
1256{
1257 unsigned int index = buf->index;
1258
1259 if (index >= gbuffers)
1260 return -EINVAL;
1261
1262 buf->bytesused = meye.grab_buffer[index].size;
1263 buf->flags = V4L2_BUF_FLAG_MAPPED | V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1264
1265 if (meye.grab_buffer[index].state == MEYE_BUF_USING)
1266 buf->flags |= V4L2_BUF_FLAG_QUEUED;
1267
1268 if (meye.grab_buffer[index].state == MEYE_BUF_DONE)
1269 buf->flags |= V4L2_BUF_FLAG_DONE;
1270
1271 buf->field = V4L2_FIELD_NONE;
1272 buf->timestamp = ns_to_timeval(meye.grab_buffer[index].ts);
1273 buf->sequence = meye.grab_buffer[index].sequence;
1274 buf->memory = V4L2_MEMORY_MMAP;
1275 buf->m.offset = index * gbufsize;
1276 buf->length = gbufsize;
1277
1278 return 0;
1279}
1280
1281static int vidioc_qbuf(struct file *file, void *fh, struct v4l2_buffer *buf)
1282{
1283 if (buf->memory != V4L2_MEMORY_MMAP)
1284 return -EINVAL;
1285
1286 if (buf->index >= gbuffers)
1287 return -EINVAL;
1288
1289 if (meye.grab_buffer[buf->index].state != MEYE_BUF_UNUSED)
1290 return -EINVAL;
1291
1292 mutex_lock(&meye.lock);
1293 buf->flags |= V4L2_BUF_FLAG_QUEUED;
1294 buf->flags &= ~V4L2_BUF_FLAG_DONE;
1295 meye.grab_buffer[buf->index].state = MEYE_BUF_USING;
1296 kfifo_in_locked(&meye.grabq, (unsigned char *)&buf->index,
1297 sizeof(int), &meye.grabq_lock);
1298 mutex_unlock(&meye.lock);
1299
1300 return 0;
1301}
1302
1303static int vidioc_dqbuf(struct file *file, void *fh, struct v4l2_buffer *buf)
1304{
1305 int reqnr;
1306
1307 if (buf->memory != V4L2_MEMORY_MMAP)
1308 return -EINVAL;
1309
1310 mutex_lock(&meye.lock);
1311
1312 if (kfifo_len(&meye.doneq) == 0 && file->f_flags & O_NONBLOCK) {
1313 mutex_unlock(&meye.lock);
1314 return -EAGAIN;
1315 }
1316
1317 if (wait_event_interruptible(meye.proc_list,
1318 kfifo_len(&meye.doneq) != 0) < 0) {
1319 mutex_unlock(&meye.lock);
1320 return -EINTR;
1321 }
1322
1323 if (!kfifo_out_locked(&meye.doneq, (unsigned char *)&reqnr,
1324 sizeof(int), &meye.doneq_lock)) {
1325 mutex_unlock(&meye.lock);
1326 return -EBUSY;
1327 }
1328
1329 if (meye.grab_buffer[reqnr].state != MEYE_BUF_DONE) {
1330 mutex_unlock(&meye.lock);
1331 return -EINVAL;
1332 }
1333
1334 buf->index = reqnr;
1335 buf->bytesused = meye.grab_buffer[reqnr].size;
1336 buf->flags = V4L2_BUF_FLAG_MAPPED | V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1337 buf->field = V4L2_FIELD_NONE;
1338 buf->timestamp = ns_to_timeval(meye.grab_buffer[reqnr].ts);
1339 buf->sequence = meye.grab_buffer[reqnr].sequence;
1340 buf->memory = V4L2_MEMORY_MMAP;
1341 buf->m.offset = reqnr * gbufsize;
1342 buf->length = gbufsize;
1343 meye.grab_buffer[reqnr].state = MEYE_BUF_UNUSED;
1344 mutex_unlock(&meye.lock);
1345
1346 return 0;
1347}
1348
1349static int vidioc_streamon(struct file *file, void *fh, enum v4l2_buf_type i)
1350{
1351 mutex_lock(&meye.lock);
1352
1353 switch (meye.mchip_mode) {
1354 case MCHIP_HIC_MODE_CONT_OUT:
1355 mchip_continuous_start();
1356 break;
1357 case MCHIP_HIC_MODE_CONT_COMP:
1358 mchip_cont_compression_start();
1359 break;
1360 default:
1361 mutex_unlock(&meye.lock);
1362 return -EINVAL;
1363 }
1364
1365 mutex_unlock(&meye.lock);
1366
1367 return 0;
1368}
1369
1370static int vidioc_streamoff(struct file *file, void *fh, enum v4l2_buf_type i)
1371{
1372 mutex_lock(&meye.lock);
1373 mchip_hic_stop();
1374 kfifo_reset(&meye.grabq);
1375 kfifo_reset(&meye.doneq);
1376
1377 for (i = 0; i < MEYE_MAX_BUFNBRS; i++)
1378 meye.grab_buffer[i].state = MEYE_BUF_UNUSED;
1379
1380 mutex_unlock(&meye.lock);
1381 return 0;
1382}
1383
1384static long vidioc_default(struct file *file, void *fh, bool valid_prio,
1385 unsigned int cmd, void *arg)
1386{
1387 switch (cmd) {
1388 case MEYEIOC_G_PARAMS:
1389 return meyeioc_g_params((struct meye_params *) arg);
1390
1391 case MEYEIOC_S_PARAMS:
1392 return meyeioc_s_params((struct meye_params *) arg);
1393
1394 case MEYEIOC_QBUF_CAPT:
1395 return meyeioc_qbuf_capt((int *) arg);
1396
1397 case MEYEIOC_SYNC:
1398 return meyeioc_sync(file, fh, (int *) arg);
1399
1400 case MEYEIOC_STILLCAPT:
1401 return meyeioc_stillcapt();
1402
1403 case MEYEIOC_STILLJCAPT:
1404 return meyeioc_stilljcapt((int *) arg);
1405
1406 default:
1407 return -ENOTTY;
1408 }
1409
1410}
1411
1412static __poll_t meye_poll(struct file *file, poll_table *wait)
1413{
1414 __poll_t res = v4l2_ctrl_poll(file, wait);
1415
1416 mutex_lock(&meye.lock);
1417 poll_wait(file, &meye.proc_list, wait);
1418 if (kfifo_len(&meye.doneq))
1419 res |= EPOLLIN | EPOLLRDNORM;
1420 mutex_unlock(&meye.lock);
1421 return res;
1422}
1423
1424static void meye_vm_open(struct vm_area_struct *vma)
1425{
1426 long idx = (long)vma->vm_private_data;
1427 meye.vma_use_count[idx]++;
1428}
1429
1430static void meye_vm_close(struct vm_area_struct *vma)
1431{
1432 long idx = (long)vma->vm_private_data;
1433 meye.vma_use_count[idx]--;
1434}
1435
1436static const struct vm_operations_struct meye_vm_ops = {
1437 .open = meye_vm_open,
1438 .close = meye_vm_close,
1439};
1440
1441static int meye_mmap(struct file *file, struct vm_area_struct *vma)
1442{
1443 unsigned long start = vma->vm_start;
1444 unsigned long size = vma->vm_end - vma->vm_start;
1445 unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
1446 unsigned long page, pos;
1447
1448 mutex_lock(&meye.lock);
1449 if (size > gbuffers * gbufsize || offset > gbuffers * gbufsize - size) {
1450 mutex_unlock(&meye.lock);
1451 return -EINVAL;
1452 }
1453 if (!meye.grab_fbuffer) {
1454 int i;
1455
1456
1457 meye.grab_fbuffer = rvmalloc(gbuffers*gbufsize);
1458 if (!meye.grab_fbuffer) {
1459 printk(KERN_ERR "meye: v4l framebuffer allocation failed\n");
1460 mutex_unlock(&meye.lock);
1461 return -ENOMEM;
1462 }
1463 for (i = 0; i < gbuffers; i++)
1464 meye.vma_use_count[i] = 0;
1465 }
1466 pos = (unsigned long)meye.grab_fbuffer + offset;
1467
1468 while (size > 0) {
1469 page = vmalloc_to_pfn((void *)pos);
1470 if (remap_pfn_range(vma, start, page, PAGE_SIZE, PAGE_SHARED)) {
1471 mutex_unlock(&meye.lock);
1472 return -EAGAIN;
1473 }
1474 start += PAGE_SIZE;
1475 pos += PAGE_SIZE;
1476 if (size > PAGE_SIZE)
1477 size -= PAGE_SIZE;
1478 else
1479 size = 0;
1480 }
1481
1482 vma->vm_ops = &meye_vm_ops;
1483 vma->vm_flags &= ~VM_IO;
1484 vma->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
1485 vma->vm_private_data = (void *) (offset / gbufsize);
1486 meye_vm_open(vma);
1487
1488 mutex_unlock(&meye.lock);
1489 return 0;
1490}
1491
1492static const struct v4l2_file_operations meye_fops = {
1493 .owner = THIS_MODULE,
1494 .open = meye_open,
1495 .release = meye_release,
1496 .mmap = meye_mmap,
1497 .unlocked_ioctl = video_ioctl2,
1498 .poll = meye_poll,
1499};
1500
1501static const struct v4l2_ioctl_ops meye_ioctl_ops = {
1502 .vidioc_querycap = vidioc_querycap,
1503 .vidioc_enum_input = vidioc_enum_input,
1504 .vidioc_g_input = vidioc_g_input,
1505 .vidioc_s_input = vidioc_s_input,
1506 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
1507 .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
1508 .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
1509 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
1510 .vidioc_reqbufs = vidioc_reqbufs,
1511 .vidioc_querybuf = vidioc_querybuf,
1512 .vidioc_qbuf = vidioc_qbuf,
1513 .vidioc_dqbuf = vidioc_dqbuf,
1514 .vidioc_streamon = vidioc_streamon,
1515 .vidioc_streamoff = vidioc_streamoff,
1516 .vidioc_log_status = v4l2_ctrl_log_status,
1517 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
1518 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
1519 .vidioc_default = vidioc_default,
1520};
1521
1522static const struct video_device meye_template = {
1523 .name = "meye",
1524 .fops = &meye_fops,
1525 .ioctl_ops = &meye_ioctl_ops,
1526 .release = video_device_release_empty,
1527 .device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING,
1528};
1529
1530static const struct v4l2_ctrl_ops meye_ctrl_ops = {
1531 .s_ctrl = meye_s_ctrl,
1532};
1533
1534#ifdef CONFIG_PM
1535static int meye_suspend(struct pci_dev *pdev, pm_message_t state)
1536{
1537 pci_save_state(pdev);
1538 meye.pm_mchip_mode = meye.mchip_mode;
1539 mchip_hic_stop();
1540 mchip_set(MCHIP_MM_INTA, 0x0);
1541 return 0;
1542}
1543
1544static int meye_resume(struct pci_dev *pdev)
1545{
1546 pci_restore_state(pdev);
1547 pci_write_config_word(meye.mchip_dev, MCHIP_PCI_SOFTRESET_SET, 1);
1548
1549 mchip_delay(MCHIP_HIC_CMD, 0);
1550 mchip_delay(MCHIP_HIC_STATUS, MCHIP_HIC_STATUS_IDLE);
1551 msleep(1);
1552 mchip_set(MCHIP_VRJ_SOFT_RESET, 1);
1553 msleep(1);
1554 mchip_set(MCHIP_MM_PCI_MODE, 5);
1555 msleep(1);
1556 mchip_set(MCHIP_MM_INTA, MCHIP_MM_INTA_HIC_1_MASK);
1557
1558 switch (meye.pm_mchip_mode) {
1559 case MCHIP_HIC_MODE_CONT_OUT:
1560 mchip_continuous_start();
1561 break;
1562 case MCHIP_HIC_MODE_CONT_COMP:
1563 mchip_cont_compression_start();
1564 break;
1565 }
1566 return 0;
1567}
1568#endif
1569
1570static int meye_probe(struct pci_dev *pcidev, const struct pci_device_id *ent)
1571{
1572 static const struct v4l2_ctrl_config ctrl_agc = {
1573 .id = V4L2_CID_MEYE_AGC,
1574 .type = V4L2_CTRL_TYPE_INTEGER,
1575 .ops = &meye_ctrl_ops,
1576 .name = "AGC",
1577 .max = 63,
1578 .step = 1,
1579 .def = 48,
1580 .flags = V4L2_CTRL_FLAG_SLIDER,
1581 };
1582 static const struct v4l2_ctrl_config ctrl_picture = {
1583 .id = V4L2_CID_MEYE_PICTURE,
1584 .type = V4L2_CTRL_TYPE_INTEGER,
1585 .ops = &meye_ctrl_ops,
1586 .name = "Picture",
1587 .max = 63,
1588 .step = 1,
1589 };
1590 static const struct v4l2_ctrl_config ctrl_framerate = {
1591 .id = V4L2_CID_MEYE_FRAMERATE,
1592 .type = V4L2_CTRL_TYPE_INTEGER,
1593 .ops = &meye_ctrl_ops,
1594 .name = "Framerate",
1595 .max = 31,
1596 .step = 1,
1597 };
1598 struct v4l2_device *v4l2_dev = &meye.v4l2_dev;
1599 int ret = -EBUSY;
1600 unsigned long mchip_adr;
1601
1602 if (meye.mchip_dev != NULL) {
1603 printk(KERN_ERR "meye: only one device allowed!\n");
1604 return ret;
1605 }
1606
1607 ret = v4l2_device_register(&pcidev->dev, v4l2_dev);
1608 if (ret < 0) {
1609 v4l2_err(v4l2_dev, "Could not register v4l2_device\n");
1610 return ret;
1611 }
1612 ret = -ENOMEM;
1613 meye.mchip_dev = pcidev;
1614
1615 meye.grab_temp = vmalloc(array_size(PAGE_SIZE, MCHIP_NB_PAGES_MJPEG));
1616 if (!meye.grab_temp)
1617 goto outvmalloc;
1618
1619 spin_lock_init(&meye.grabq_lock);
1620 if (kfifo_alloc(&meye.grabq, sizeof(int) * MEYE_MAX_BUFNBRS,
1621 GFP_KERNEL))
1622 goto outkfifoalloc1;
1623
1624 spin_lock_init(&meye.doneq_lock);
1625 if (kfifo_alloc(&meye.doneq, sizeof(int) * MEYE_MAX_BUFNBRS,
1626 GFP_KERNEL))
1627 goto outkfifoalloc2;
1628
1629 meye.vdev = meye_template;
1630 meye.vdev.v4l2_dev = &meye.v4l2_dev;
1631
1632 ret = sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERA, 1);
1633 if (ret) {
1634 v4l2_err(v4l2_dev, "meye: unable to power on the camera\n");
1635 v4l2_err(v4l2_dev, "meye: did you enable the camera in sonypi using the module options ?\n");
1636 goto outsonypienable;
1637 }
1638
1639 ret = pci_enable_device(meye.mchip_dev);
1640 if (ret) {
1641 v4l2_err(v4l2_dev, "meye: pci_enable_device failed\n");
1642 goto outenabledev;
1643 }
1644
1645 ret = -EIO;
1646 mchip_adr = pci_resource_start(meye.mchip_dev,0);
1647 if (!mchip_adr) {
1648 v4l2_err(v4l2_dev, "meye: mchip has no device base address\n");
1649 goto outregions;
1650 }
1651 if (!request_mem_region(pci_resource_start(meye.mchip_dev, 0),
1652 pci_resource_len(meye.mchip_dev, 0),
1653 "meye")) {
1654 v4l2_err(v4l2_dev, "meye: request_mem_region failed\n");
1655 goto outregions;
1656 }
1657 meye.mchip_mmregs = ioremap(mchip_adr, MCHIP_MM_REGS);
1658 if (!meye.mchip_mmregs) {
1659 v4l2_err(v4l2_dev, "meye: ioremap failed\n");
1660 goto outremap;
1661 }
1662
1663 meye.mchip_irq = pcidev->irq;
1664 if (request_irq(meye.mchip_irq, meye_irq,
1665 IRQF_SHARED, "meye", meye_irq)) {
1666 v4l2_err(v4l2_dev, "request_irq failed\n");
1667 goto outreqirq;
1668 }
1669
1670 pci_write_config_byte(meye.mchip_dev, PCI_CACHE_LINE_SIZE, 8);
1671 pci_write_config_byte(meye.mchip_dev, PCI_LATENCY_TIMER, 64);
1672
1673 pci_set_master(meye.mchip_dev);
1674
1675
1676 pci_write_config_word(meye.mchip_dev, MCHIP_PCI_SOFTRESET_SET, 1);
1677
1678 mchip_delay(MCHIP_HIC_CMD, 0);
1679 mchip_delay(MCHIP_HIC_STATUS, MCHIP_HIC_STATUS_IDLE);
1680
1681 msleep(1);
1682 mchip_set(MCHIP_VRJ_SOFT_RESET, 1);
1683
1684 msleep(1);
1685 mchip_set(MCHIP_MM_PCI_MODE, 5);
1686
1687 msleep(1);
1688 mchip_set(MCHIP_MM_INTA, MCHIP_MM_INTA_HIC_1_MASK);
1689
1690 mutex_init(&meye.lock);
1691 init_waitqueue_head(&meye.proc_list);
1692
1693 v4l2_ctrl_handler_init(&meye.hdl, 3);
1694 v4l2_ctrl_new_std(&meye.hdl, &meye_ctrl_ops,
1695 V4L2_CID_BRIGHTNESS, 0, 63, 1, 32);
1696 v4l2_ctrl_new_std(&meye.hdl, &meye_ctrl_ops,
1697 V4L2_CID_HUE, 0, 63, 1, 32);
1698 v4l2_ctrl_new_std(&meye.hdl, &meye_ctrl_ops,
1699 V4L2_CID_CONTRAST, 0, 63, 1, 32);
1700 v4l2_ctrl_new_std(&meye.hdl, &meye_ctrl_ops,
1701 V4L2_CID_SATURATION, 0, 63, 1, 32);
1702 v4l2_ctrl_new_custom(&meye.hdl, &ctrl_agc, NULL);
1703 v4l2_ctrl_new_std(&meye.hdl, &meye_ctrl_ops,
1704 V4L2_CID_SHARPNESS, 0, 63, 1, 32);
1705 v4l2_ctrl_new_custom(&meye.hdl, &ctrl_picture, NULL);
1706 v4l2_ctrl_new_std(&meye.hdl, &meye_ctrl_ops,
1707 V4L2_CID_JPEG_COMPRESSION_QUALITY, 0, 10, 1, 8);
1708 v4l2_ctrl_new_custom(&meye.hdl, &ctrl_framerate, NULL);
1709 if (meye.hdl.error) {
1710 v4l2_err(v4l2_dev, "couldn't register controls\n");
1711 goto outvideoreg;
1712 }
1713
1714 v4l2_ctrl_handler_setup(&meye.hdl);
1715 meye.vdev.ctrl_handler = &meye.hdl;
1716
1717 if (video_register_device(&meye.vdev, VFL_TYPE_GRABBER,
1718 video_nr) < 0) {
1719 v4l2_err(v4l2_dev, "video_register_device failed\n");
1720 goto outvideoreg;
1721 }
1722
1723 v4l2_info(v4l2_dev, "Motion Eye Camera Driver v%s.\n",
1724 MEYE_DRIVER_VERSION);
1725 v4l2_info(v4l2_dev, "mchip KL5A72002 rev. %d, base %lx, irq %d\n",
1726 meye.mchip_dev->revision, mchip_adr, meye.mchip_irq);
1727
1728 return 0;
1729
1730outvideoreg:
1731 v4l2_ctrl_handler_free(&meye.hdl);
1732 free_irq(meye.mchip_irq, meye_irq);
1733outreqirq:
1734 iounmap(meye.mchip_mmregs);
1735outremap:
1736 release_mem_region(pci_resource_start(meye.mchip_dev, 0),
1737 pci_resource_len(meye.mchip_dev, 0));
1738outregions:
1739 pci_disable_device(meye.mchip_dev);
1740outenabledev:
1741 sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERA, 0);
1742outsonypienable:
1743 kfifo_free(&meye.doneq);
1744outkfifoalloc2:
1745 kfifo_free(&meye.grabq);
1746outkfifoalloc1:
1747 vfree(meye.grab_temp);
1748outvmalloc:
1749 return ret;
1750}
1751
1752static void meye_remove(struct pci_dev *pcidev)
1753{
1754 video_unregister_device(&meye.vdev);
1755
1756 mchip_hic_stop();
1757
1758 mchip_dma_free();
1759
1760
1761 mchip_set(MCHIP_MM_INTA, 0x0);
1762
1763 free_irq(meye.mchip_irq, meye_irq);
1764
1765 iounmap(meye.mchip_mmregs);
1766
1767 release_mem_region(pci_resource_start(meye.mchip_dev, 0),
1768 pci_resource_len(meye.mchip_dev, 0));
1769
1770 pci_disable_device(meye.mchip_dev);
1771
1772 sony_pic_camera_command(SONY_PIC_COMMAND_SETCAMERA, 0);
1773
1774 kfifo_free(&meye.doneq);
1775 kfifo_free(&meye.grabq);
1776
1777 vfree(meye.grab_temp);
1778
1779 if (meye.grab_fbuffer) {
1780 rvfree(meye.grab_fbuffer, gbuffers*gbufsize);
1781 meye.grab_fbuffer = NULL;
1782 }
1783
1784 printk(KERN_INFO "meye: removed\n");
1785}
1786
1787static const struct pci_device_id meye_pci_tbl[] = {
1788 { PCI_VDEVICE(KAWASAKI, PCI_DEVICE_ID_MCHIP_KL5A72002), 0 },
1789 { }
1790};
1791
1792MODULE_DEVICE_TABLE(pci, meye_pci_tbl);
1793
1794static struct pci_driver meye_driver = {
1795 .name = "meye",
1796 .id_table = meye_pci_tbl,
1797 .probe = meye_probe,
1798 .remove = meye_remove,
1799#ifdef CONFIG_PM
1800 .suspend = meye_suspend,
1801 .resume = meye_resume,
1802#endif
1803};
1804
1805static int __init meye_init(void)
1806{
1807 gbuffers = max(2, min((int)gbuffers, MEYE_MAX_BUFNBRS));
1808 if (gbufsize > MEYE_MAX_BUFSIZE)
1809 gbufsize = MEYE_MAX_BUFSIZE;
1810 gbufsize = PAGE_ALIGN(gbufsize);
1811 printk(KERN_INFO "meye: using %d buffers with %dk (%dk total) for capture\n",
1812 gbuffers,
1813 gbufsize / 1024, gbuffers * gbufsize / 1024);
1814 return pci_register_driver(&meye_driver);
1815}
1816
1817static void __exit meye_exit(void)
1818{
1819 pci_unregister_driver(&meye_driver);
1820}
1821
1822module_init(meye_init);
1823module_exit(meye_exit);
1824
