Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 1 | /* |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 2 | * usbvision-core.c - driver for NT100x USB video capture devices |
Mauro Carvalho Chehab | 7ca659e | 2006-12-09 11:43:31 -0300 | [diff] [blame] | 3 | * |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 4 | * |
| 5 | * Copyright (c) 1999-2005 Joerg Heckenbach <joerg@heckenbach-aw.de> |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 6 | * Dwaine Garden <dwainegarden@rogers.com> |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 7 | * |
| 8 | * This module is part of usbvision driver project. |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 9 | * Updates to driver completed by Dwaine P. Garden |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 10 | * |
| 11 | * This program is free software; you can redistribute it and/or modify |
| 12 | * it under the terms of the GNU General Public License as published by |
| 13 | * the Free Software Foundation; either version 2 of the License, or |
| 14 | * (at your option) any later version. |
| 15 | * |
| 16 | * This program is distributed in the hope that it will be useful, |
| 17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 19 | * GNU General Public License for more details. |
| 20 | * |
| 21 | * You should have received a copy of the GNU General Public License |
| 22 | * along with this program; if not, write to the Free Software |
| 23 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 24 | */ |
| 25 | |
| 26 | #include <linux/kernel.h> |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 27 | #include <linux/list.h> |
| 28 | #include <linux/timer.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 29 | #include <linux/gfp.h> |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 30 | #include <linux/mm.h> |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 31 | #include <linux/highmem.h> |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 32 | #include <linux/vmalloc.h> |
| 33 | #include <linux/module.h> |
| 34 | #include <linux/init.h> |
| 35 | #include <linux/spinlock.h> |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 36 | #include <asm/io.h> |
| 37 | #include <linux/videodev2.h> |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 38 | #include <linux/i2c.h> |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 39 | |
Dwaine Garden | 18d8a45 | 2006-12-04 08:31:11 -0300 | [diff] [blame] | 40 | #include <media/saa7115.h> |
| 41 | #include <media/v4l2-common.h> |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 42 | #include <media/tuner.h> |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 43 | |
Mauro Carvalho Chehab | a1ed551 | 2006-12-09 11:41:59 -0300 | [diff] [blame] | 44 | #include <linux/workqueue.h> |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 45 | |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 46 | #include "usbvision.h" |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 47 | |
Douglas Schilling Landgraf | ff699e6 | 2008-04-22 14:41:48 -0300 | [diff] [blame] | 48 | static unsigned int core_debug; |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 49 | module_param(core_debug,int,0644); |
| 50 | MODULE_PARM_DESC(core_debug,"enable debug messages [core]"); |
| 51 | |
Douglas Schilling Landgraf | ff699e6 | 2008-04-22 14:41:48 -0300 | [diff] [blame] | 52 | static unsigned int force_testpattern; |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 53 | module_param(force_testpattern,int,0644); |
| 54 | MODULE_PARM_DESC(force_testpattern,"enable test pattern display [core]"); |
| 55 | |
Douglas Schilling Landgraf | ff699e6 | 2008-04-22 14:41:48 -0300 | [diff] [blame] | 56 | static int adjustCompression = 1; /* Set the compression to be adaptive */ |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 57 | module_param(adjustCompression, int, 0444); |
| 58 | MODULE_PARM_DESC(adjustCompression, " Set the ADPCM compression for the device. Default: 1 (On)"); |
| 59 | |
Douglas Schilling Landgraf | ff699e6 | 2008-04-22 14:41:48 -0300 | [diff] [blame] | 60 | /* To help people with Black and White output with using s-video input. |
| 61 | * Some cables and input device are wired differently. */ |
| 62 | static int SwitchSVideoInput; |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 63 | module_param(SwitchSVideoInput, int, 0444); |
| 64 | MODULE_PARM_DESC(SwitchSVideoInput, " Set the S-Video input. Some cables and input device are wired differently. Default: 0 (Off)"); |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 65 | |
Thierry MERLE | c6243d9 | 2008-01-09 17:34:53 -0300 | [diff] [blame] | 66 | static unsigned int adjust_X_Offset = -1; |
| 67 | module_param(adjust_X_Offset, int, 0644); |
| 68 | MODULE_PARM_DESC(adjust_X_Offset, "adjust X offset display [core]"); |
| 69 | |
| 70 | static unsigned int adjust_Y_Offset = -1; |
| 71 | module_param(adjust_Y_Offset, int, 0644); |
| 72 | MODULE_PARM_DESC(adjust_Y_Offset, "adjust Y offset display [core]"); |
| 73 | |
| 74 | |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 75 | #define ENABLE_HEXDUMP 0 /* Enable if you need it */ |
| 76 | |
| 77 | |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 78 | #ifdef USBVISION_DEBUG |
Thierry MERLE | df18c31 | 2008-04-04 21:00:57 -0300 | [diff] [blame] | 79 | #define PDEBUG(level, fmt, args...) { \ |
| 80 | if (core_debug & (level)) \ |
Greg Kroah-Hartman | a482f32 | 2008-10-10 05:08:23 -0300 | [diff] [blame] | 81 | printk(KERN_INFO KBUILD_MODNAME ":[%s:%d] " fmt, \ |
| 82 | __func__, __LINE__ , ## args); \ |
Thierry MERLE | df18c31 | 2008-04-04 21:00:57 -0300 | [diff] [blame] | 83 | } |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 84 | #else |
| 85 | #define PDEBUG(level, fmt, args...) do {} while(0) |
| 86 | #endif |
| 87 | |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 88 | #define DBG_HEADER 1<<0 |
| 89 | #define DBG_IRQ 1<<1 |
| 90 | #define DBG_ISOC 1<<2 |
| 91 | #define DBG_PARSE 1<<3 |
| 92 | #define DBG_SCRATCH 1<<4 |
Thierry MERLE | c876a34 | 2006-12-09 16:42:54 -0300 | [diff] [blame] | 93 | #define DBG_FUNC 1<<5 |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 94 | |
| 95 | static const int max_imgwidth = MAX_FRAME_WIDTH; |
| 96 | static const int max_imgheight = MAX_FRAME_HEIGHT; |
| 97 | static const int min_imgwidth = MIN_FRAME_WIDTH; |
| 98 | static const int min_imgheight = MIN_FRAME_HEIGHT; |
| 99 | |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 100 | /* The value of 'scratch_buf_size' affects quality of the picture |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 101 | * in many ways. Shorter buffers may cause loss of data when client |
| 102 | * is too slow. Larger buffers are memory-consuming and take longer |
| 103 | * to work with. This setting can be adjusted, but the default value |
| 104 | * should be OK for most desktop users. |
| 105 | */ |
| 106 | #define DEFAULT_SCRATCH_BUF_SIZE (0x20000) // 128kB memory scratch buffer |
| 107 | static const int scratch_buf_size = DEFAULT_SCRATCH_BUF_SIZE; |
| 108 | |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 109 | // Function prototypes |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 110 | static int usbvision_request_intra (struct usb_usbvision *usbvision); |
| 111 | static int usbvision_unrequest_intra (struct usb_usbvision *usbvision); |
| 112 | static int usbvision_adjust_compression (struct usb_usbvision *usbvision); |
| 113 | static int usbvision_measure_bandwidth (struct usb_usbvision *usbvision); |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 114 | |
| 115 | /*******************************/ |
| 116 | /* Memory management functions */ |
| 117 | /*******************************/ |
| 118 | |
| 119 | /* |
| 120 | * Here we want the physical address of the memory. |
| 121 | * This is used when initializing the contents of the area. |
| 122 | */ |
| 123 | |
Adrian Bunk | 0a0cead | 2006-12-11 15:51:36 -0300 | [diff] [blame] | 124 | static void *usbvision_rvmalloc(unsigned long size) |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 125 | { |
| 126 | void *mem; |
| 127 | unsigned long adr; |
| 128 | |
| 129 | size = PAGE_ALIGN(size); |
| 130 | mem = vmalloc_32(size); |
| 131 | if (!mem) |
| 132 | return NULL; |
| 133 | |
| 134 | memset(mem, 0, size); /* Clear the ram out, no junk to the user */ |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 135 | adr = (unsigned long) mem; |
| 136 | while (size > 0) { |
| 137 | SetPageReserved(vmalloc_to_page((void *)adr)); |
| 138 | adr += PAGE_SIZE; |
| 139 | size -= PAGE_SIZE; |
| 140 | } |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 141 | |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 142 | return mem; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 143 | } |
| 144 | |
Adrian Bunk | 4a06b53 | 2006-12-29 09:57:26 -0300 | [diff] [blame] | 145 | static void usbvision_rvfree(void *mem, unsigned long size) |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 146 | { |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 147 | unsigned long adr; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 148 | |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 149 | if (!mem) |
| 150 | return; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 151 | |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 152 | size = PAGE_ALIGN(size); |
| 153 | |
| 154 | adr = (unsigned long) mem; |
| 155 | while ((long) size > 0) { |
| 156 | ClearPageReserved(vmalloc_to_page((void *)adr)); |
| 157 | adr += PAGE_SIZE; |
| 158 | size -= PAGE_SIZE; |
| 159 | } |
| 160 | |
| 161 | vfree(mem); |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 162 | } |
| 163 | |
| 164 | |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 165 | #if ENABLE_HEXDUMP |
| 166 | static void usbvision_hexdump(const unsigned char *data, int len) |
| 167 | { |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 168 | char tmp[80]; |
| 169 | int i, k; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 170 | |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 171 | for (i = k = 0; len > 0; i++, len--) { |
| 172 | if (i > 0 && (i % 16 == 0)) { |
| 173 | printk("%s\n", tmp); |
| 174 | k = 0; |
| 175 | } |
| 176 | k += sprintf(&tmp[k], "%02x ", data[i]); |
| 177 | } |
| 178 | if (k > 0) |
| 179 | printk("%s\n", tmp); |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 180 | } |
| 181 | #endif |
| 182 | |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 183 | /******************************** |
| 184 | * scratch ring buffer handling |
| 185 | ********************************/ |
Adrian Bunk | 0a0cead | 2006-12-11 15:51:36 -0300 | [diff] [blame] | 186 | static int scratch_len(struct usb_usbvision *usbvision) /*This returns the amount of data actually in the buffer */ |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 187 | { |
| 188 | int len = usbvision->scratch_write_ptr - usbvision->scratch_read_ptr; |
| 189 | if (len < 0) { |
| 190 | len += scratch_buf_size; |
| 191 | } |
| 192 | PDEBUG(DBG_SCRATCH, "scratch_len() = %d\n", len); |
| 193 | |
| 194 | return len; |
| 195 | } |
| 196 | |
| 197 | |
| 198 | /* This returns the free space left in the buffer */ |
Adrian Bunk | 0a0cead | 2006-12-11 15:51:36 -0300 | [diff] [blame] | 199 | static int scratch_free(struct usb_usbvision *usbvision) |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 200 | { |
| 201 | int free = usbvision->scratch_read_ptr - usbvision->scratch_write_ptr; |
| 202 | if (free <= 0) { |
| 203 | free += scratch_buf_size; |
| 204 | } |
| 205 | if (free) { |
| 206 | free -= 1; /* at least one byte in the buffer must */ |
| 207 | /* left blank, otherwise there is no chance to differ between full and empty */ |
| 208 | } |
| 209 | PDEBUG(DBG_SCRATCH, "return %d\n", free); |
| 210 | |
| 211 | return free; |
| 212 | } |
| 213 | |
| 214 | |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 215 | /* This puts data into the buffer */ |
Adrian Bunk | 0a0cead | 2006-12-11 15:51:36 -0300 | [diff] [blame] | 216 | static int scratch_put(struct usb_usbvision *usbvision, unsigned char *data, |
| 217 | int len) |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 218 | { |
| 219 | int len_part; |
| 220 | |
| 221 | if (usbvision->scratch_write_ptr + len < scratch_buf_size) { |
| 222 | memcpy(usbvision->scratch + usbvision->scratch_write_ptr, data, len); |
| 223 | usbvision->scratch_write_ptr += len; |
| 224 | } |
| 225 | else { |
| 226 | len_part = scratch_buf_size - usbvision->scratch_write_ptr; |
| 227 | memcpy(usbvision->scratch + usbvision->scratch_write_ptr, data, len_part); |
| 228 | if (len == len_part) { |
| 229 | usbvision->scratch_write_ptr = 0; /* just set write_ptr to zero */ |
| 230 | } |
| 231 | else { |
| 232 | memcpy(usbvision->scratch, data + len_part, len - len_part); |
| 233 | usbvision->scratch_write_ptr = len - len_part; |
| 234 | } |
| 235 | } |
| 236 | |
| 237 | PDEBUG(DBG_SCRATCH, "len=%d, new write_ptr=%d\n", len, usbvision->scratch_write_ptr); |
| 238 | |
| 239 | return len; |
| 240 | } |
| 241 | |
| 242 | /* This marks the write_ptr as position of new frame header */ |
Adrian Bunk | 0a0cead | 2006-12-11 15:51:36 -0300 | [diff] [blame] | 243 | static void scratch_mark_header(struct usb_usbvision *usbvision) |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 244 | { |
| 245 | PDEBUG(DBG_SCRATCH, "header at write_ptr=%d\n", usbvision->scratch_headermarker_write_ptr); |
| 246 | |
| 247 | usbvision->scratch_headermarker[usbvision->scratch_headermarker_write_ptr] = |
| 248 | usbvision->scratch_write_ptr; |
| 249 | usbvision->scratch_headermarker_write_ptr += 1; |
| 250 | usbvision->scratch_headermarker_write_ptr %= USBVISION_NUM_HEADERMARKER; |
| 251 | } |
| 252 | |
| 253 | /* This gets data from the buffer at the given "ptr" position */ |
Adrian Bunk | 0a0cead | 2006-12-11 15:51:36 -0300 | [diff] [blame] | 254 | static int scratch_get_extra(struct usb_usbvision *usbvision, |
| 255 | unsigned char *data, int *ptr, int len) |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 256 | { |
| 257 | int len_part; |
| 258 | if (*ptr + len < scratch_buf_size) { |
| 259 | memcpy(data, usbvision->scratch + *ptr, len); |
| 260 | *ptr += len; |
| 261 | } |
| 262 | else { |
| 263 | len_part = scratch_buf_size - *ptr; |
| 264 | memcpy(data, usbvision->scratch + *ptr, len_part); |
| 265 | if (len == len_part) { |
| 266 | *ptr = 0; /* just set the y_ptr to zero */ |
| 267 | } |
| 268 | else { |
| 269 | memcpy(data + len_part, usbvision->scratch, len - len_part); |
| 270 | *ptr = len - len_part; |
| 271 | } |
| 272 | } |
| 273 | |
| 274 | PDEBUG(DBG_SCRATCH, "len=%d, new ptr=%d\n", len, *ptr); |
| 275 | |
| 276 | return len; |
| 277 | } |
| 278 | |
| 279 | |
| 280 | /* This sets the scratch extra read pointer */ |
Adrian Bunk | 0a0cead | 2006-12-11 15:51:36 -0300 | [diff] [blame] | 281 | static void scratch_set_extra_ptr(struct usb_usbvision *usbvision, int *ptr, |
| 282 | int len) |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 283 | { |
| 284 | *ptr = (usbvision->scratch_read_ptr + len)%scratch_buf_size; |
| 285 | |
| 286 | PDEBUG(DBG_SCRATCH, "ptr=%d\n", *ptr); |
| 287 | } |
| 288 | |
| 289 | |
| 290 | /*This increments the scratch extra read pointer */ |
Adrian Bunk | 0a0cead | 2006-12-11 15:51:36 -0300 | [diff] [blame] | 291 | static void scratch_inc_extra_ptr(int *ptr, int len) |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 292 | { |
| 293 | *ptr = (*ptr + len) % scratch_buf_size; |
| 294 | |
| 295 | PDEBUG(DBG_SCRATCH, "ptr=%d\n", *ptr); |
| 296 | } |
| 297 | |
| 298 | |
| 299 | /* This gets data from the buffer */ |
Adrian Bunk | 0a0cead | 2006-12-11 15:51:36 -0300 | [diff] [blame] | 300 | static int scratch_get(struct usb_usbvision *usbvision, unsigned char *data, |
| 301 | int len) |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 302 | { |
| 303 | int len_part; |
| 304 | if (usbvision->scratch_read_ptr + len < scratch_buf_size) { |
| 305 | memcpy(data, usbvision->scratch + usbvision->scratch_read_ptr, len); |
| 306 | usbvision->scratch_read_ptr += len; |
| 307 | } |
| 308 | else { |
| 309 | len_part = scratch_buf_size - usbvision->scratch_read_ptr; |
| 310 | memcpy(data, usbvision->scratch + usbvision->scratch_read_ptr, len_part); |
| 311 | if (len == len_part) { |
| 312 | usbvision->scratch_read_ptr = 0; /* just set the read_ptr to zero */ |
| 313 | } |
| 314 | else { |
| 315 | memcpy(data + len_part, usbvision->scratch, len - len_part); |
| 316 | usbvision->scratch_read_ptr = len - len_part; |
| 317 | } |
| 318 | } |
| 319 | |
| 320 | PDEBUG(DBG_SCRATCH, "len=%d, new read_ptr=%d\n", len, usbvision->scratch_read_ptr); |
| 321 | |
| 322 | return len; |
| 323 | } |
| 324 | |
| 325 | |
| 326 | /* This sets read pointer to next header and returns it */ |
Adrian Bunk | 0a0cead | 2006-12-11 15:51:36 -0300 | [diff] [blame] | 327 | static int scratch_get_header(struct usb_usbvision *usbvision, |
| 328 | struct usbvision_frame_header *header) |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 329 | { |
| 330 | int errCode = 0; |
| 331 | |
| 332 | PDEBUG(DBG_SCRATCH, "from read_ptr=%d", usbvision->scratch_headermarker_read_ptr); |
| 333 | |
| 334 | while (usbvision->scratch_headermarker_write_ptr - |
| 335 | usbvision->scratch_headermarker_read_ptr != 0) { |
| 336 | usbvision->scratch_read_ptr = |
| 337 | usbvision->scratch_headermarker[usbvision->scratch_headermarker_read_ptr]; |
| 338 | usbvision->scratch_headermarker_read_ptr += 1; |
| 339 | usbvision->scratch_headermarker_read_ptr %= USBVISION_NUM_HEADERMARKER; |
| 340 | scratch_get(usbvision, (unsigned char *)header, USBVISION_HEADER_LENGTH); |
| 341 | if ((header->magic_1 == USBVISION_MAGIC_1) |
| 342 | && (header->magic_2 == USBVISION_MAGIC_2) |
| 343 | && (header->headerLength == USBVISION_HEADER_LENGTH)) { |
| 344 | errCode = USBVISION_HEADER_LENGTH; |
| 345 | header->frameWidth = header->frameWidthLo + (header->frameWidthHi << 8); |
| 346 | header->frameHeight = header->frameHeightLo + (header->frameHeightHi << 8); |
| 347 | break; |
| 348 | } |
| 349 | } |
| 350 | |
| 351 | return errCode; |
| 352 | } |
| 353 | |
| 354 | |
| 355 | /*This removes len bytes of old data from the buffer */ |
Adrian Bunk | 0a0cead | 2006-12-11 15:51:36 -0300 | [diff] [blame] | 356 | static void scratch_rm_old(struct usb_usbvision *usbvision, int len) |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 357 | { |
| 358 | |
| 359 | usbvision->scratch_read_ptr += len; |
| 360 | usbvision->scratch_read_ptr %= scratch_buf_size; |
| 361 | PDEBUG(DBG_SCRATCH, "read_ptr is now %d\n", usbvision->scratch_read_ptr); |
| 362 | } |
| 363 | |
| 364 | |
| 365 | /*This resets the buffer - kills all data in it too */ |
Adrian Bunk | 0a0cead | 2006-12-11 15:51:36 -0300 | [diff] [blame] | 366 | static void scratch_reset(struct usb_usbvision *usbvision) |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 367 | { |
| 368 | PDEBUG(DBG_SCRATCH, "\n"); |
| 369 | |
| 370 | usbvision->scratch_read_ptr = 0; |
| 371 | usbvision->scratch_write_ptr = 0; |
| 372 | usbvision->scratch_headermarker_read_ptr = 0; |
| 373 | usbvision->scratch_headermarker_write_ptr = 0; |
| 374 | usbvision->isocstate = IsocState_NoFrame; |
| 375 | } |
| 376 | |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 377 | int usbvision_scratch_alloc(struct usb_usbvision *usbvision) |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 378 | { |
Thierry MERLE | 38284ba | 2006-12-15 16:46:53 -0300 | [diff] [blame] | 379 | usbvision->scratch = vmalloc_32(scratch_buf_size); |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 380 | scratch_reset(usbvision); |
| 381 | if(usbvision->scratch == NULL) { |
Mauro Carvalho Chehab | be9ed51 | 2009-01-08 09:13:42 -0300 | [diff] [blame] | 382 | dev_err(&usbvision->dev->dev, |
| 383 | "%s: unable to allocate %d bytes for scratch\n", |
| 384 | __func__, scratch_buf_size); |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 385 | return -ENOMEM; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 386 | } |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 387 | return 0; |
| 388 | } |
| 389 | |
| 390 | void usbvision_scratch_free(struct usb_usbvision *usbvision) |
| 391 | { |
Figo.zhang | 5e2c217 | 2009-06-11 10:33:31 -0300 | [diff] [blame] | 392 | vfree(usbvision->scratch); |
| 393 | usbvision->scratch = NULL; |
| 394 | |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 395 | } |
| 396 | |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 397 | /* |
| 398 | * usbvision_testpattern() |
| 399 | * |
| 400 | * Procedure forms a test pattern (yellow grid on blue background). |
| 401 | * |
| 402 | * Parameters: |
| 403 | * fullframe: if TRUE then entire frame is filled, otherwise the procedure |
Dwaine Garden | 18d8a45 | 2006-12-04 08:31:11 -0300 | [diff] [blame] | 404 | * continues from the current scanline. |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 405 | * pmode 0: fill the frame with solid blue color (like on VCR or TV) |
Dwaine Garden | 18d8a45 | 2006-12-04 08:31:11 -0300 | [diff] [blame] | 406 | * 1: Draw a colored grid |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 407 | * |
| 408 | */ |
Adrian Bunk | 0a0cead | 2006-12-11 15:51:36 -0300 | [diff] [blame] | 409 | static void usbvision_testpattern(struct usb_usbvision *usbvision, |
| 410 | int fullframe, int pmode) |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 411 | { |
| 412 | static const char proc[] = "usbvision_testpattern"; |
| 413 | struct usbvision_frame *frame; |
| 414 | unsigned char *f; |
| 415 | int num_cell = 0; |
| 416 | int scan_length = 0; |
Douglas Schilling Landgraf | ff699e6 | 2008-04-22 14:41:48 -0300 | [diff] [blame] | 417 | static int num_pass; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 418 | |
| 419 | if (usbvision == NULL) { |
| 420 | printk(KERN_ERR "%s: usbvision == NULL\n", proc); |
| 421 | return; |
| 422 | } |
Thierry MERLE | f2242ee | 2006-12-04 08:31:14 -0300 | [diff] [blame] | 423 | if (usbvision->curFrame == NULL) { |
| 424 | printk(KERN_ERR "%s: usbvision->curFrame is NULL.\n", proc); |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 425 | return; |
| 426 | } |
| 427 | |
| 428 | /* Grab the current frame */ |
Thierry MERLE | f2242ee | 2006-12-04 08:31:14 -0300 | [diff] [blame] | 429 | frame = usbvision->curFrame; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 430 | |
| 431 | /* Optionally start at the beginning */ |
| 432 | if (fullframe) { |
| 433 | frame->curline = 0; |
| 434 | frame->scanlength = 0; |
| 435 | } |
| 436 | |
| 437 | /* Form every scan line */ |
| 438 | for (; frame->curline < frame->frmheight; frame->curline++) { |
| 439 | int i; |
| 440 | |
| 441 | f = frame->data + (usbvision->curwidth * 3 * frame->curline); |
| 442 | for (i = 0; i < usbvision->curwidth; i++) { |
| 443 | unsigned char cb = 0x80; |
| 444 | unsigned char cg = 0; |
| 445 | unsigned char cr = 0; |
| 446 | |
| 447 | if (pmode == 1) { |
| 448 | if (frame->curline % 32 == 0) |
| 449 | cb = 0, cg = cr = 0xFF; |
| 450 | else if (i % 32 == 0) { |
| 451 | if (frame->curline % 32 == 1) |
| 452 | num_cell++; |
| 453 | cb = 0, cg = cr = 0xFF; |
| 454 | } else { |
| 455 | cb = |
| 456 | ((num_cell * 7) + |
| 457 | num_pass) & 0xFF; |
| 458 | cg = |
| 459 | ((num_cell * 5) + |
| 460 | num_pass * 2) & 0xFF; |
| 461 | cr = |
| 462 | ((num_cell * 3) + |
| 463 | num_pass * 3) & 0xFF; |
| 464 | } |
| 465 | } else { |
| 466 | /* Just the blue screen */ |
| 467 | } |
| 468 | |
| 469 | *f++ = cb; |
| 470 | *f++ = cg; |
| 471 | *f++ = cr; |
| 472 | scan_length += 3; |
| 473 | } |
| 474 | } |
| 475 | |
| 476 | frame->grabstate = FrameState_Done; |
| 477 | frame->scanlength += scan_length; |
| 478 | ++num_pass; |
| 479 | |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 480 | } |
| 481 | |
| 482 | /* |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 483 | * usbvision_decompress_alloc() |
| 484 | * |
| 485 | * allocates intermediate buffer for decompression |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 486 | */ |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 487 | int usbvision_decompress_alloc(struct usb_usbvision *usbvision) |
| 488 | { |
| 489 | int IFB_size = MAX_FRAME_WIDTH * MAX_FRAME_HEIGHT * 3 / 2; |
Thierry MERLE | 38284ba | 2006-12-15 16:46:53 -0300 | [diff] [blame] | 490 | usbvision->IntraFrameBuffer = vmalloc_32(IFB_size); |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 491 | if (usbvision->IntraFrameBuffer == NULL) { |
Mauro Carvalho Chehab | be9ed51 | 2009-01-08 09:13:42 -0300 | [diff] [blame] | 492 | dev_err(&usbvision->dev->dev, |
| 493 | "%s: unable to allocate %d for compr. frame buffer\n", |
| 494 | __func__, IFB_size); |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 495 | return -ENOMEM; |
| 496 | } |
| 497 | return 0; |
| 498 | } |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 499 | |
| 500 | /* |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 501 | * usbvision_decompress_free() |
| 502 | * |
| 503 | * frees intermediate buffer for decompression |
| 504 | */ |
| 505 | void usbvision_decompress_free(struct usb_usbvision *usbvision) |
| 506 | { |
Figo.zhang | 5e2c217 | 2009-06-11 10:33:31 -0300 | [diff] [blame] | 507 | vfree(usbvision->IntraFrameBuffer); |
| 508 | usbvision->IntraFrameBuffer = NULL; |
| 509 | |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 510 | } |
| 511 | |
| 512 | /************************************************************ |
| 513 | * Here comes the data parsing stuff that is run as interrupt |
| 514 | ************************************************************/ |
| 515 | /* |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 516 | * usbvision_find_header() |
| 517 | * |
| 518 | * Locate one of supported header markers in the scratch buffer. |
| 519 | */ |
| 520 | static enum ParseState usbvision_find_header(struct usb_usbvision *usbvision) |
| 521 | { |
| 522 | struct usbvision_frame *frame; |
| 523 | int foundHeader = 0; |
| 524 | |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 525 | frame = usbvision->curFrame; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 526 | |
| 527 | while (scratch_get_header(usbvision, &frame->isocHeader) == USBVISION_HEADER_LENGTH) { |
| 528 | // found header in scratch |
| 529 | PDEBUG(DBG_HEADER, "found header: 0x%02x%02x %d %d %d %d %#x 0x%02x %u %u", |
| 530 | frame->isocHeader.magic_2, |
| 531 | frame->isocHeader.magic_1, |
| 532 | frame->isocHeader.headerLength, |
| 533 | frame->isocHeader.frameNum, |
| 534 | frame->isocHeader.framePhase, |
| 535 | frame->isocHeader.frameLatency, |
| 536 | frame->isocHeader.dataFormat, |
| 537 | frame->isocHeader.formatParam, |
| 538 | frame->isocHeader.frameWidth, |
| 539 | frame->isocHeader.frameHeight); |
| 540 | |
| 541 | if (usbvision->requestIntra) { |
| 542 | if (frame->isocHeader.formatParam & 0x80) { |
| 543 | foundHeader = 1; |
| 544 | usbvision->lastIsocFrameNum = -1; // do not check for lost frames this time |
| 545 | usbvision_unrequest_intra(usbvision); |
| 546 | break; |
| 547 | } |
| 548 | } |
| 549 | else { |
| 550 | foundHeader = 1; |
| 551 | break; |
| 552 | } |
| 553 | } |
| 554 | |
| 555 | if (foundHeader) { |
| 556 | frame->frmwidth = frame->isocHeader.frameWidth * usbvision->stretch_width; |
| 557 | frame->frmheight = frame->isocHeader.frameHeight * usbvision->stretch_height; |
| 558 | frame->v4l2_linesize = (frame->frmwidth * frame->v4l2_format.depth)>> 3; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 559 | } |
| 560 | else { // no header found |
| 561 | PDEBUG(DBG_HEADER, "skipping scratch data, no header"); |
| 562 | scratch_reset(usbvision); |
| 563 | return ParseState_EndParse; |
| 564 | } |
| 565 | |
| 566 | // found header |
| 567 | if (frame->isocHeader.dataFormat==ISOC_MODE_COMPRESS) { |
| 568 | //check isocHeader.frameNum for lost frames |
| 569 | if (usbvision->lastIsocFrameNum >= 0) { |
| 570 | if (((usbvision->lastIsocFrameNum + 1) % 32) != frame->isocHeader.frameNum) { |
| 571 | // unexpected frame drop: need to request new intra frame |
| 572 | PDEBUG(DBG_HEADER, "Lost frame before %d on USB", frame->isocHeader.frameNum); |
| 573 | usbvision_request_intra(usbvision); |
| 574 | return ParseState_NextFrame; |
| 575 | } |
| 576 | } |
| 577 | usbvision->lastIsocFrameNum = frame->isocHeader.frameNum; |
| 578 | } |
| 579 | usbvision->header_count++; |
| 580 | frame->scanstate = ScanState_Lines; |
| 581 | frame->curline = 0; |
| 582 | |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 583 | if (force_testpattern) { |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 584 | usbvision_testpattern(usbvision, 1, 1); |
| 585 | return ParseState_NextFrame; |
| 586 | } |
| 587 | return ParseState_Continue; |
| 588 | } |
| 589 | |
| 590 | static enum ParseState usbvision_parse_lines_422(struct usb_usbvision *usbvision, |
| 591 | long *pcopylen) |
| 592 | { |
| 593 | volatile struct usbvision_frame *frame; |
| 594 | unsigned char *f; |
| 595 | int len; |
| 596 | int i; |
| 597 | unsigned char yuyv[4]={180, 128, 10, 128}; // YUV components |
| 598 | unsigned char rv, gv, bv; // RGB components |
| 599 | int clipmask_index, bytes_per_pixel; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 600 | int stretch_bytes, clipmask_add; |
| 601 | |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 602 | frame = usbvision->curFrame; |
| 603 | f = frame->data + (frame->v4l2_linesize * frame->curline); |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 604 | |
| 605 | /* Make sure there's enough data for the entire line */ |
| 606 | len = (frame->isocHeader.frameWidth * 2)+5; |
| 607 | if (scratch_len(usbvision) < len) { |
| 608 | PDEBUG(DBG_PARSE, "out of data in line %d, need %u.\n", frame->curline, len); |
| 609 | return ParseState_Out; |
| 610 | } |
| 611 | |
| 612 | if ((frame->curline + 1) >= frame->frmheight) { |
| 613 | return ParseState_NextFrame; |
| 614 | } |
| 615 | |
| 616 | bytes_per_pixel = frame->v4l2_format.bytes_per_pixel; |
| 617 | stretch_bytes = (usbvision->stretch_width - 1) * bytes_per_pixel; |
| 618 | clipmask_index = frame->curline * MAX_FRAME_WIDTH; |
| 619 | clipmask_add = usbvision->stretch_width; |
| 620 | |
| 621 | for (i = 0; i < frame->frmwidth; i+=(2 * usbvision->stretch_width)) { |
| 622 | |
| 623 | scratch_get(usbvision, &yuyv[0], 4); |
| 624 | |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 625 | if (frame->v4l2_format.format == V4L2_PIX_FMT_YUYV) { |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 626 | *f++ = yuyv[0]; // Y |
| 627 | *f++ = yuyv[3]; // U |
| 628 | } |
| 629 | else { |
| 630 | |
| 631 | YUV_TO_RGB_BY_THE_BOOK(yuyv[0], yuyv[1], yuyv[3], rv, gv, bv); |
| 632 | switch (frame->v4l2_format.format) { |
Thierry MERLE | 6200bba | 2008-01-10 18:20:34 -0300 | [diff] [blame] | 633 | case V4L2_PIX_FMT_RGB565: |
| 634 | *f++ = (0x1F & rv) | |
| 635 | (0xE0 & (gv << 5)); |
| 636 | *f++ = (0x07 & (gv >> 3)) | |
| 637 | (0xF8 & bv); |
| 638 | break; |
| 639 | case V4L2_PIX_FMT_RGB24: |
| 640 | *f++ = rv; |
| 641 | *f++ = gv; |
| 642 | *f++ = bv; |
| 643 | break; |
| 644 | case V4L2_PIX_FMT_RGB32: |
| 645 | *f++ = rv; |
| 646 | *f++ = gv; |
| 647 | *f++ = bv; |
| 648 | f++; |
| 649 | break; |
| 650 | case V4L2_PIX_FMT_RGB555: |
| 651 | *f++ = (0x1F & rv) | |
| 652 | (0xE0 & (gv << 5)); |
| 653 | *f++ = (0x03 & (gv >> 3)) | |
| 654 | (0x7C & (bv << 2)); |
| 655 | break; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 656 | } |
| 657 | } |
| 658 | clipmask_index += clipmask_add; |
| 659 | f += stretch_bytes; |
| 660 | |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 661 | if (frame->v4l2_format.format == V4L2_PIX_FMT_YUYV) { |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 662 | *f++ = yuyv[2]; // Y |
| 663 | *f++ = yuyv[1]; // V |
| 664 | } |
| 665 | else { |
| 666 | |
| 667 | YUV_TO_RGB_BY_THE_BOOK(yuyv[2], yuyv[1], yuyv[3], rv, gv, bv); |
| 668 | switch (frame->v4l2_format.format) { |
Thierry MERLE | 6200bba | 2008-01-10 18:20:34 -0300 | [diff] [blame] | 669 | case V4L2_PIX_FMT_RGB565: |
| 670 | *f++ = (0x1F & rv) | |
| 671 | (0xE0 & (gv << 5)); |
| 672 | *f++ = (0x07 & (gv >> 3)) | |
| 673 | (0xF8 & bv); |
| 674 | break; |
| 675 | case V4L2_PIX_FMT_RGB24: |
| 676 | *f++ = rv; |
| 677 | *f++ = gv; |
| 678 | *f++ = bv; |
| 679 | break; |
| 680 | case V4L2_PIX_FMT_RGB32: |
| 681 | *f++ = rv; |
| 682 | *f++ = gv; |
| 683 | *f++ = bv; |
| 684 | f++; |
| 685 | break; |
| 686 | case V4L2_PIX_FMT_RGB555: |
| 687 | *f++ = (0x1F & rv) | |
| 688 | (0xE0 & (gv << 5)); |
| 689 | *f++ = (0x03 & (gv >> 3)) | |
| 690 | (0x7C & (bv << 2)); |
| 691 | break; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 692 | } |
| 693 | } |
| 694 | clipmask_index += clipmask_add; |
| 695 | f += stretch_bytes; |
| 696 | } |
| 697 | |
| 698 | frame->curline += usbvision->stretch_height; |
| 699 | *pcopylen += frame->v4l2_linesize * usbvision->stretch_height; |
| 700 | |
| 701 | if (frame->curline >= frame->frmheight) { |
| 702 | return ParseState_NextFrame; |
| 703 | } |
| 704 | else { |
| 705 | return ParseState_Continue; |
| 706 | } |
| 707 | } |
| 708 | |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 709 | /* The decompression routine */ |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 710 | static int usbvision_decompress(struct usb_usbvision *usbvision,unsigned char *Compressed, |
| 711 | unsigned char *Decompressed, int *StartPos, |
| 712 | int *BlockTypeStartPos, int Len) |
| 713 | { |
| 714 | int RestPixel, Idx, MaxPos, Pos, ExtraPos, BlockLen, BlockTypePos, BlockTypeLen; |
| 715 | unsigned char BlockByte, BlockCode, BlockType, BlockTypeByte, Integrator; |
| 716 | |
| 717 | Integrator = 0; |
| 718 | Pos = *StartPos; |
| 719 | BlockTypePos = *BlockTypeStartPos; |
| 720 | MaxPos = 396; //Pos + Len; |
| 721 | ExtraPos = Pos; |
| 722 | BlockLen = 0; |
| 723 | BlockByte = 0; |
| 724 | BlockCode = 0; |
| 725 | BlockType = 0; |
| 726 | BlockTypeByte = 0; |
| 727 | BlockTypeLen = 0; |
| 728 | RestPixel = Len; |
| 729 | |
| 730 | for (Idx = 0; Idx < Len; Idx++) { |
| 731 | |
| 732 | if (BlockLen == 0) { |
| 733 | if (BlockTypeLen==0) { |
| 734 | BlockTypeByte = Compressed[BlockTypePos]; |
| 735 | BlockTypePos++; |
| 736 | BlockTypeLen = 4; |
| 737 | } |
| 738 | BlockType = (BlockTypeByte & 0xC0) >> 6; |
| 739 | |
| 740 | //statistic: |
| 741 | usbvision->ComprBlockTypes[BlockType]++; |
| 742 | |
| 743 | Pos = ExtraPos; |
| 744 | if (BlockType == 0) { |
| 745 | if(RestPixel >= 24) { |
| 746 | Idx += 23; |
| 747 | RestPixel -= 24; |
| 748 | Integrator = Decompressed[Idx]; |
| 749 | } else { |
| 750 | Idx += RestPixel - 1; |
| 751 | RestPixel = 0; |
| 752 | } |
| 753 | } else { |
| 754 | BlockCode = Compressed[Pos]; |
| 755 | Pos++; |
| 756 | if (RestPixel >= 24) { |
| 757 | BlockLen = 24; |
| 758 | } else { |
| 759 | BlockLen = RestPixel; |
| 760 | } |
| 761 | RestPixel -= BlockLen; |
| 762 | ExtraPos = Pos + (BlockLen / 4); |
| 763 | } |
| 764 | BlockTypeByte <<= 2; |
| 765 | BlockTypeLen -= 1; |
| 766 | } |
| 767 | if (BlockLen > 0) { |
| 768 | if ((BlockLen%4) == 0) { |
| 769 | BlockByte = Compressed[Pos]; |
| 770 | Pos++; |
| 771 | } |
| 772 | if (BlockType == 1) { //inter Block |
| 773 | Integrator = Decompressed[Idx]; |
| 774 | } |
| 775 | switch (BlockByte & 0xC0) { |
| 776 | case 0x03<<6: |
| 777 | Integrator += Compressed[ExtraPos]; |
| 778 | ExtraPos++; |
| 779 | break; |
| 780 | case 0x02<<6: |
| 781 | Integrator += BlockCode; |
| 782 | break; |
| 783 | case 0x00: |
| 784 | Integrator -= BlockCode; |
| 785 | break; |
| 786 | } |
| 787 | Decompressed[Idx] = Integrator; |
| 788 | BlockByte <<= 2; |
| 789 | BlockLen -= 1; |
| 790 | } |
| 791 | } |
| 792 | *StartPos = ExtraPos; |
| 793 | *BlockTypeStartPos = BlockTypePos; |
| 794 | return Idx; |
| 795 | } |
| 796 | |
| 797 | |
| 798 | /* |
| 799 | * usbvision_parse_compress() |
| 800 | * |
| 801 | * Parse compressed frame from the scratch buffer, put |
| 802 | * decoded RGB value into the current frame buffer and add the written |
| 803 | * number of bytes (RGB) to the *pcopylen. |
| 804 | * |
| 805 | */ |
| 806 | static enum ParseState usbvision_parse_compress(struct usb_usbvision *usbvision, |
| 807 | long *pcopylen) |
| 808 | { |
| 809 | #define USBVISION_STRIP_MAGIC 0x5A |
| 810 | #define USBVISION_STRIP_LEN_MAX 400 |
| 811 | #define USBVISION_STRIP_HEADER_LEN 3 |
| 812 | |
| 813 | struct usbvision_frame *frame; |
| 814 | unsigned char *f,*u = NULL ,*v = NULL; |
| 815 | unsigned char StripData[USBVISION_STRIP_LEN_MAX]; |
| 816 | unsigned char StripHeader[USBVISION_STRIP_HEADER_LEN]; |
| 817 | int Idx, IdxEnd, StripLen, StripPtr, StartBlockPos, BlockPos, BlockTypePos; |
| 818 | int clipmask_index, bytes_per_pixel, rc; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 819 | int imageSize; |
| 820 | unsigned char rv, gv, bv; |
| 821 | static unsigned char *Y, *U, *V; |
| 822 | |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 823 | frame = usbvision->curFrame; |
| 824 | imageSize = frame->frmwidth * frame->frmheight; |
| 825 | if ( (frame->v4l2_format.format == V4L2_PIX_FMT_YUV422P) || |
| 826 | (frame->v4l2_format.format == V4L2_PIX_FMT_YVU420) ) { // this is a planar format |
| 827 | //... v4l2_linesize not used here. |
| 828 | f = frame->data + (frame->width * frame->curline); |
| 829 | } else |
| 830 | f = frame->data + (frame->v4l2_linesize * frame->curline); |
Dwaine Garden | 18d8a45 | 2006-12-04 08:31:11 -0300 | [diff] [blame] | 831 | |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 832 | if (frame->v4l2_format.format == V4L2_PIX_FMT_YUYV){ //initialise u and v pointers |
| 833 | // get base of u and b planes add halfoffset |
Dwaine Garden | 18d8a45 | 2006-12-04 08:31:11 -0300 | [diff] [blame] | 834 | |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 835 | u = frame->data |
| 836 | + imageSize |
| 837 | + (frame->frmwidth >>1) * frame->curline ; |
| 838 | v = u + (imageSize >>1 ); |
Dwaine Garden | 18d8a45 | 2006-12-04 08:31:11 -0300 | [diff] [blame] | 839 | |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 840 | } else if (frame->v4l2_format.format == V4L2_PIX_FMT_YVU420){ |
Dwaine Garden | 18d8a45 | 2006-12-04 08:31:11 -0300 | [diff] [blame] | 841 | |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 842 | v = frame->data + imageSize + ((frame->curline* (frame->width))>>2) ; |
| 843 | u = v + (imageSize >>2) ; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 844 | } |
| 845 | |
| 846 | if (frame->curline == 0) { |
| 847 | usbvision_adjust_compression(usbvision); |
| 848 | } |
| 849 | |
| 850 | if (scratch_len(usbvision) < USBVISION_STRIP_HEADER_LEN) { |
| 851 | return ParseState_Out; |
| 852 | } |
| 853 | |
| 854 | //get strip header without changing the scratch_read_ptr |
| 855 | scratch_set_extra_ptr(usbvision, &StripPtr, 0); |
| 856 | scratch_get_extra(usbvision, &StripHeader[0], &StripPtr, |
| 857 | USBVISION_STRIP_HEADER_LEN); |
| 858 | |
| 859 | if (StripHeader[0] != USBVISION_STRIP_MAGIC) { |
| 860 | // wrong strip magic |
| 861 | usbvision->stripMagicErrors++; |
| 862 | return ParseState_NextFrame; |
| 863 | } |
| 864 | |
| 865 | if (frame->curline != (int)StripHeader[2]) { |
| 866 | //line number missmatch error |
| 867 | usbvision->stripLineNumberErrors++; |
| 868 | } |
| 869 | |
| 870 | StripLen = 2 * (unsigned int)StripHeader[1]; |
| 871 | if (StripLen > USBVISION_STRIP_LEN_MAX) { |
| 872 | // strip overrun |
| 873 | // I think this never happens |
| 874 | usbvision_request_intra(usbvision); |
| 875 | } |
| 876 | |
| 877 | if (scratch_len(usbvision) < StripLen) { |
| 878 | //there is not enough data for the strip |
| 879 | return ParseState_Out; |
| 880 | } |
| 881 | |
| 882 | if (usbvision->IntraFrameBuffer) { |
| 883 | Y = usbvision->IntraFrameBuffer + frame->frmwidth * frame->curline; |
| 884 | U = usbvision->IntraFrameBuffer + imageSize + (frame->frmwidth / 2) * (frame->curline / 2); |
| 885 | V = usbvision->IntraFrameBuffer + imageSize / 4 * 5 + (frame->frmwidth / 2) * (frame->curline / 2); |
| 886 | } |
| 887 | else { |
| 888 | return ParseState_NextFrame; |
| 889 | } |
| 890 | |
Dwaine Garden | 18d8a45 | 2006-12-04 08:31:11 -0300 | [diff] [blame] | 891 | bytes_per_pixel = frame->v4l2_format.bytes_per_pixel; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 892 | clipmask_index = frame->curline * MAX_FRAME_WIDTH; |
| 893 | |
| 894 | scratch_get(usbvision, StripData, StripLen); |
| 895 | |
| 896 | IdxEnd = frame->frmwidth; |
| 897 | BlockTypePos = USBVISION_STRIP_HEADER_LEN; |
| 898 | StartBlockPos = BlockTypePos + (IdxEnd - 1) / 96 + (IdxEnd / 2 - 1) / 96 + 2; |
| 899 | BlockPos = StartBlockPos; |
| 900 | |
| 901 | usbvision->BlockPos = BlockPos; |
| 902 | |
| 903 | if ((rc = usbvision_decompress(usbvision, StripData, Y, &BlockPos, &BlockTypePos, IdxEnd)) != IdxEnd) { |
| 904 | //return ParseState_Continue; |
| 905 | } |
| 906 | if (StripLen > usbvision->maxStripLen) { |
| 907 | usbvision->maxStripLen = StripLen; |
| 908 | } |
| 909 | |
| 910 | if (frame->curline%2) { |
| 911 | if ((rc = usbvision_decompress(usbvision, StripData, V, &BlockPos, &BlockTypePos, IdxEnd/2)) != IdxEnd/2) { |
| 912 | //return ParseState_Continue; |
| 913 | } |
| 914 | } |
| 915 | else { |
| 916 | if ((rc = usbvision_decompress(usbvision, StripData, U, &BlockPos, &BlockTypePos, IdxEnd/2)) != IdxEnd/2) { |
| 917 | //return ParseState_Continue; |
| 918 | } |
| 919 | } |
| 920 | |
| 921 | if (BlockPos > usbvision->comprBlockPos) { |
| 922 | usbvision->comprBlockPos = BlockPos; |
| 923 | } |
| 924 | if (BlockPos > StripLen) { |
| 925 | usbvision->stripLenErrors++; |
| 926 | } |
Dwaine Garden | 18d8a45 | 2006-12-04 08:31:11 -0300 | [diff] [blame] | 927 | |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 928 | for (Idx = 0; Idx < IdxEnd; Idx++) { |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 929 | if(frame->v4l2_format.format == V4L2_PIX_FMT_YUYV) { |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 930 | *f++ = Y[Idx]; |
| 931 | *f++ = Idx & 0x01 ? U[Idx/2] : V[Idx/2]; |
| 932 | } |
| 933 | else if(frame->v4l2_format.format == V4L2_PIX_FMT_YUV422P) { |
| 934 | *f++ = Y[Idx]; |
| 935 | if ( Idx & 0x01) |
| 936 | *u++ = U[Idx>>1] ; |
| 937 | else |
| 938 | *v++ = V[Idx>>1]; |
| 939 | } |
| 940 | else if (frame->v4l2_format.format == V4L2_PIX_FMT_YVU420) { |
| 941 | *f++ = Y [Idx]; |
Dwaine Garden | 18d8a45 | 2006-12-04 08:31:11 -0300 | [diff] [blame] | 942 | if ( !(( Idx & 0x01 ) | ( frame->curline & 0x01 )) ){ |
| 943 | |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 944 | /* only need do this for 1 in 4 pixels */ |
| 945 | /* intraframe buffer is YUV420 format */ |
| 946 | |
| 947 | *u++ = U[Idx >>1]; |
| 948 | *v++ = V[Idx >>1]; |
| 949 | } |
Dwaine Garden | 18d8a45 | 2006-12-04 08:31:11 -0300 | [diff] [blame] | 950 | |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 951 | } |
| 952 | else { |
| 953 | YUV_TO_RGB_BY_THE_BOOK(Y[Idx], U[Idx/2], V[Idx/2], rv, gv, bv); |
| 954 | switch (frame->v4l2_format.format) { |
| 955 | case V4L2_PIX_FMT_GREY: |
| 956 | *f++ = Y[Idx]; |
| 957 | break; |
| 958 | case V4L2_PIX_FMT_RGB555: |
Thierry MERLE | 6200bba | 2008-01-10 18:20:34 -0300 | [diff] [blame] | 959 | *f++ = (0x1F & rv) | |
| 960 | (0xE0 & (gv << 5)); |
| 961 | *f++ = (0x03 & (gv >> 3)) | |
| 962 | (0x7C & (bv << 2)); |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 963 | break; |
| 964 | case V4L2_PIX_FMT_RGB565: |
Thierry MERLE | 6200bba | 2008-01-10 18:20:34 -0300 | [diff] [blame] | 965 | *f++ = (0x1F & rv) | |
| 966 | (0xE0 & (gv << 5)); |
| 967 | *f++ = (0x07 & (gv >> 3)) | |
| 968 | (0xF8 & bv); |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 969 | break; |
| 970 | case V4L2_PIX_FMT_RGB24: |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 971 | *f++ = rv; |
Thierry MERLE | 6200bba | 2008-01-10 18:20:34 -0300 | [diff] [blame] | 972 | *f++ = gv; |
| 973 | *f++ = bv; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 974 | break; |
| 975 | case V4L2_PIX_FMT_RGB32: |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 976 | *f++ = rv; |
Thierry MERLE | 6200bba | 2008-01-10 18:20:34 -0300 | [diff] [blame] | 977 | *f++ = gv; |
| 978 | *f++ = bv; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 979 | f++; |
| 980 | break; |
| 981 | } |
| 982 | } |
| 983 | clipmask_index++; |
| 984 | } |
Dwaine Garden | 18d8a45 | 2006-12-04 08:31:11 -0300 | [diff] [blame] | 985 | /* Deal with non-integer no. of bytes for YUV420P */ |
| 986 | if (frame->v4l2_format.format != V4L2_PIX_FMT_YVU420 ) |
| 987 | *pcopylen += frame->v4l2_linesize; |
| 988 | else |
| 989 | *pcopylen += frame->curline & 0x01 ? frame->v4l2_linesize : frame->v4l2_linesize << 1; |
| 990 | |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 991 | frame->curline += 1; |
| 992 | |
| 993 | if (frame->curline >= frame->frmheight) { |
| 994 | return ParseState_NextFrame; |
| 995 | } |
| 996 | else { |
| 997 | return ParseState_Continue; |
| 998 | } |
| 999 | |
| 1000 | } |
| 1001 | |
| 1002 | |
| 1003 | /* |
| 1004 | * usbvision_parse_lines_420() |
| 1005 | * |
| 1006 | * Parse two lines from the scratch buffer, put |
| 1007 | * decoded RGB value into the current frame buffer and add the written |
| 1008 | * number of bytes (RGB) to the *pcopylen. |
| 1009 | * |
| 1010 | */ |
| 1011 | static enum ParseState usbvision_parse_lines_420(struct usb_usbvision *usbvision, |
| 1012 | long *pcopylen) |
| 1013 | { |
| 1014 | struct usbvision_frame *frame; |
| 1015 | unsigned char *f_even = NULL, *f_odd = NULL; |
| 1016 | unsigned int pixel_per_line, block; |
| 1017 | int pixel, block_split; |
| 1018 | int y_ptr, u_ptr, v_ptr, y_odd_offset; |
| 1019 | const int y_block_size = 128; |
| 1020 | const int uv_block_size = 64; |
| 1021 | const int sub_block_size = 32; |
| 1022 | const int y_step[] = { 0, 0, 0, 2 }, y_step_size = 4; |
| 1023 | const int uv_step[]= { 0, 0, 0, 4 }, uv_step_size = 4; |
| 1024 | unsigned char y[2], u, v; /* YUV components */ |
| 1025 | int y_, u_, v_, vb, uvg, ur; |
| 1026 | int r_, g_, b_; /* RGB components */ |
| 1027 | unsigned char g; |
| 1028 | int clipmask_even_index, clipmask_odd_index, bytes_per_pixel; |
| 1029 | int clipmask_add, stretch_bytes; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 1030 | |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 1031 | frame = usbvision->curFrame; |
| 1032 | f_even = frame->data + (frame->v4l2_linesize * frame->curline); |
| 1033 | f_odd = f_even + frame->v4l2_linesize * usbvision->stretch_height; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 1034 | |
| 1035 | /* Make sure there's enough data for the entire line */ |
| 1036 | /* In this mode usbvision transfer 3 bytes for every 2 pixels */ |
| 1037 | /* I need two lines to decode the color */ |
Dwaine Garden | 18d8a45 | 2006-12-04 08:31:11 -0300 | [diff] [blame] | 1038 | bytes_per_pixel = frame->v4l2_format.bytes_per_pixel; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 1039 | stretch_bytes = (usbvision->stretch_width - 1) * bytes_per_pixel; |
| 1040 | clipmask_even_index = frame->curline * MAX_FRAME_WIDTH; |
| 1041 | clipmask_odd_index = clipmask_even_index + MAX_FRAME_WIDTH; |
| 1042 | clipmask_add = usbvision->stretch_width; |
| 1043 | pixel_per_line = frame->isocHeader.frameWidth; |
| 1044 | |
| 1045 | if (scratch_len(usbvision) < (int)pixel_per_line * 3) { |
| 1046 | //printk(KERN_DEBUG "out of data, need %d\n", len); |
| 1047 | return ParseState_Out; |
| 1048 | } |
| 1049 | |
| 1050 | if ((frame->curline + 1) >= frame->frmheight) { |
| 1051 | return ParseState_NextFrame; |
| 1052 | } |
| 1053 | |
| 1054 | block_split = (pixel_per_line%y_block_size) ? 1 : 0; //are some blocks splitted into different lines? |
| 1055 | |
| 1056 | y_odd_offset = (pixel_per_line / y_block_size) * (y_block_size + uv_block_size) |
| 1057 | + block_split * uv_block_size; |
| 1058 | |
| 1059 | scratch_set_extra_ptr(usbvision, &y_ptr, y_odd_offset); |
| 1060 | scratch_set_extra_ptr(usbvision, &u_ptr, y_block_size); |
| 1061 | scratch_set_extra_ptr(usbvision, &v_ptr, y_odd_offset |
| 1062 | + (4 - block_split) * sub_block_size); |
| 1063 | |
| 1064 | for (block = 0; block < (pixel_per_line / sub_block_size); |
| 1065 | block++) { |
| 1066 | |
| 1067 | |
| 1068 | for (pixel = 0; pixel < sub_block_size; pixel +=2) { |
| 1069 | scratch_get(usbvision, &y[0], 2); |
| 1070 | scratch_get_extra(usbvision, &u, &u_ptr, 1); |
| 1071 | scratch_get_extra(usbvision, &v, &v_ptr, 1); |
| 1072 | |
| 1073 | //I don't use the YUV_TO_RGB macro for better performance |
| 1074 | v_ = v - 128; |
| 1075 | u_ = u - 128; |
| 1076 | vb = 132252 * v_; |
| 1077 | uvg= -53281 * u_ - 25625 * v_; |
| 1078 | ur = 104595 * u_; |
| 1079 | |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 1080 | if(frame->v4l2_format.format == V4L2_PIX_FMT_YUYV) { |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 1081 | *f_even++ = y[0]; |
| 1082 | *f_even++ = v; |
| 1083 | } |
| 1084 | else { |
| 1085 | y_ = 76284 * (y[0] - 16); |
| 1086 | |
| 1087 | b_ = (y_ + vb) >> 16; |
| 1088 | g_ = (y_ + uvg)>> 16; |
| 1089 | r_ = (y_ + ur) >> 16; |
| 1090 | |
| 1091 | switch (frame->v4l2_format.format) { |
Thierry MERLE | 6200bba | 2008-01-10 18:20:34 -0300 | [diff] [blame] | 1092 | case V4L2_PIX_FMT_RGB565: |
| 1093 | g = LIMIT_RGB(g_); |
| 1094 | *f_even++ = |
| 1095 | (0x1F & LIMIT_RGB(r_)) | |
| 1096 | (0xE0 & (g << 5)); |
| 1097 | *f_even++ = |
| 1098 | (0x07 & (g >> 3)) | |
| 1099 | (0xF8 & LIMIT_RGB(b_)); |
| 1100 | break; |
| 1101 | case V4L2_PIX_FMT_RGB24: |
| 1102 | *f_even++ = LIMIT_RGB(r_); |
| 1103 | *f_even++ = LIMIT_RGB(g_); |
| 1104 | *f_even++ = LIMIT_RGB(b_); |
| 1105 | break; |
| 1106 | case V4L2_PIX_FMT_RGB32: |
| 1107 | *f_even++ = LIMIT_RGB(r_); |
| 1108 | *f_even++ = LIMIT_RGB(g_); |
| 1109 | *f_even++ = LIMIT_RGB(b_); |
| 1110 | f_even++; |
| 1111 | break; |
| 1112 | case V4L2_PIX_FMT_RGB555: |
| 1113 | g = LIMIT_RGB(g_); |
| 1114 | *f_even++ = (0x1F & LIMIT_RGB(r_)) | |
| 1115 | (0xE0 & (g << 5)); |
| 1116 | *f_even++ = (0x03 & (g >> 3)) | |
| 1117 | (0x7C & (LIMIT_RGB(b_) << 2)); |
| 1118 | break; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 1119 | } |
| 1120 | } |
| 1121 | clipmask_even_index += clipmask_add; |
| 1122 | f_even += stretch_bytes; |
| 1123 | |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 1124 | if(frame->v4l2_format.format == V4L2_PIX_FMT_YUYV) { |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 1125 | *f_even++ = y[1]; |
| 1126 | *f_even++ = u; |
| 1127 | } |
| 1128 | else { |
| 1129 | y_ = 76284 * (y[1] - 16); |
| 1130 | |
| 1131 | b_ = (y_ + vb) >> 16; |
| 1132 | g_ = (y_ + uvg)>> 16; |
| 1133 | r_ = (y_ + ur) >> 16; |
| 1134 | |
| 1135 | switch (frame->v4l2_format.format) { |
Thierry MERLE | 6200bba | 2008-01-10 18:20:34 -0300 | [diff] [blame] | 1136 | case V4L2_PIX_FMT_RGB565: |
| 1137 | g = LIMIT_RGB(g_); |
| 1138 | *f_even++ = |
| 1139 | (0x1F & LIMIT_RGB(r_)) | |
| 1140 | (0xE0 & (g << 5)); |
| 1141 | *f_even++ = |
| 1142 | (0x07 & (g >> 3)) | |
| 1143 | (0xF8 & LIMIT_RGB(b_)); |
| 1144 | break; |
| 1145 | case V4L2_PIX_FMT_RGB24: |
| 1146 | *f_even++ = LIMIT_RGB(r_); |
| 1147 | *f_even++ = LIMIT_RGB(g_); |
| 1148 | *f_even++ = LIMIT_RGB(b_); |
| 1149 | break; |
| 1150 | case V4L2_PIX_FMT_RGB32: |
| 1151 | *f_even++ = LIMIT_RGB(r_); |
| 1152 | *f_even++ = LIMIT_RGB(g_); |
| 1153 | *f_even++ = LIMIT_RGB(b_); |
| 1154 | f_even++; |
| 1155 | break; |
| 1156 | case V4L2_PIX_FMT_RGB555: |
| 1157 | g = LIMIT_RGB(g_); |
| 1158 | *f_even++ = (0x1F & LIMIT_RGB(r_)) | |
| 1159 | (0xE0 & (g << 5)); |
| 1160 | *f_even++ = (0x03 & (g >> 3)) | |
| 1161 | (0x7C & (LIMIT_RGB(b_) << 2)); |
| 1162 | break; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 1163 | } |
| 1164 | } |
| 1165 | clipmask_even_index += clipmask_add; |
| 1166 | f_even += stretch_bytes; |
| 1167 | |
| 1168 | scratch_get_extra(usbvision, &y[0], &y_ptr, 2); |
| 1169 | |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 1170 | if(frame->v4l2_format.format == V4L2_PIX_FMT_YUYV) { |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 1171 | *f_odd++ = y[0]; |
| 1172 | *f_odd++ = v; |
| 1173 | } |
| 1174 | else { |
| 1175 | y_ = 76284 * (y[0] - 16); |
| 1176 | |
| 1177 | b_ = (y_ + vb) >> 16; |
| 1178 | g_ = (y_ + uvg)>> 16; |
| 1179 | r_ = (y_ + ur) >> 16; |
| 1180 | |
| 1181 | switch (frame->v4l2_format.format) { |
Thierry MERLE | 6200bba | 2008-01-10 18:20:34 -0300 | [diff] [blame] | 1182 | case V4L2_PIX_FMT_RGB565: |
| 1183 | g = LIMIT_RGB(g_); |
| 1184 | *f_odd++ = |
| 1185 | (0x1F & LIMIT_RGB(r_)) | |
| 1186 | (0xE0 & (g << 5)); |
| 1187 | *f_odd++ = |
| 1188 | (0x07 & (g >> 3)) | |
| 1189 | (0xF8 & LIMIT_RGB(b_)); |
| 1190 | break; |
| 1191 | case V4L2_PIX_FMT_RGB24: |
| 1192 | *f_odd++ = LIMIT_RGB(r_); |
| 1193 | *f_odd++ = LIMIT_RGB(g_); |
| 1194 | *f_odd++ = LIMIT_RGB(b_); |
| 1195 | break; |
| 1196 | case V4L2_PIX_FMT_RGB32: |
| 1197 | *f_odd++ = LIMIT_RGB(r_); |
| 1198 | *f_odd++ = LIMIT_RGB(g_); |
| 1199 | *f_odd++ = LIMIT_RGB(b_); |
| 1200 | f_odd++; |
| 1201 | break; |
| 1202 | case V4L2_PIX_FMT_RGB555: |
| 1203 | g = LIMIT_RGB(g_); |
| 1204 | *f_odd++ = (0x1F & LIMIT_RGB(r_)) | |
| 1205 | (0xE0 & (g << 5)); |
| 1206 | *f_odd++ = (0x03 & (g >> 3)) | |
| 1207 | (0x7C & (LIMIT_RGB(b_) << 2)); |
| 1208 | break; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 1209 | } |
| 1210 | } |
| 1211 | clipmask_odd_index += clipmask_add; |
| 1212 | f_odd += stretch_bytes; |
| 1213 | |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 1214 | if(frame->v4l2_format.format == V4L2_PIX_FMT_YUYV) { |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 1215 | *f_odd++ = y[1]; |
| 1216 | *f_odd++ = u; |
| 1217 | } |
| 1218 | else { |
| 1219 | y_ = 76284 * (y[1] - 16); |
| 1220 | |
| 1221 | b_ = (y_ + vb) >> 16; |
| 1222 | g_ = (y_ + uvg)>> 16; |
| 1223 | r_ = (y_ + ur) >> 16; |
| 1224 | |
| 1225 | switch (frame->v4l2_format.format) { |
Thierry MERLE | 6200bba | 2008-01-10 18:20:34 -0300 | [diff] [blame] | 1226 | case V4L2_PIX_FMT_RGB565: |
| 1227 | g = LIMIT_RGB(g_); |
| 1228 | *f_odd++ = |
| 1229 | (0x1F & LIMIT_RGB(r_)) | |
| 1230 | (0xE0 & (g << 5)); |
| 1231 | *f_odd++ = |
| 1232 | (0x07 & (g >> 3)) | |
| 1233 | (0xF8 & LIMIT_RGB(b_)); |
| 1234 | break; |
| 1235 | case V4L2_PIX_FMT_RGB24: |
| 1236 | *f_odd++ = LIMIT_RGB(r_); |
| 1237 | *f_odd++ = LIMIT_RGB(g_); |
| 1238 | *f_odd++ = LIMIT_RGB(b_); |
| 1239 | break; |
| 1240 | case V4L2_PIX_FMT_RGB32: |
| 1241 | *f_odd++ = LIMIT_RGB(r_); |
| 1242 | *f_odd++ = LIMIT_RGB(g_); |
| 1243 | *f_odd++ = LIMIT_RGB(b_); |
| 1244 | f_odd++; |
| 1245 | break; |
| 1246 | case V4L2_PIX_FMT_RGB555: |
| 1247 | g = LIMIT_RGB(g_); |
| 1248 | *f_odd++ = (0x1F & LIMIT_RGB(r_)) | |
| 1249 | (0xE0 & (g << 5)); |
| 1250 | *f_odd++ = (0x03 & (g >> 3)) | |
| 1251 | (0x7C & (LIMIT_RGB(b_) << 2)); |
| 1252 | break; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 1253 | } |
| 1254 | } |
| 1255 | clipmask_odd_index += clipmask_add; |
| 1256 | f_odd += stretch_bytes; |
| 1257 | } |
| 1258 | |
| 1259 | scratch_rm_old(usbvision,y_step[block % y_step_size] * sub_block_size); |
| 1260 | scratch_inc_extra_ptr(&y_ptr, y_step[(block + 2 * block_split) % y_step_size] |
| 1261 | * sub_block_size); |
| 1262 | scratch_inc_extra_ptr(&u_ptr, uv_step[block % uv_step_size] |
| 1263 | * sub_block_size); |
| 1264 | scratch_inc_extra_ptr(&v_ptr, uv_step[(block + 2 * block_split) % uv_step_size] |
| 1265 | * sub_block_size); |
| 1266 | } |
| 1267 | |
| 1268 | scratch_rm_old(usbvision, pixel_per_line * 3 / 2 |
| 1269 | + block_split * sub_block_size); |
| 1270 | |
| 1271 | frame->curline += 2 * usbvision->stretch_height; |
| 1272 | *pcopylen += frame->v4l2_linesize * 2 * usbvision->stretch_height; |
| 1273 | |
| 1274 | if (frame->curline >= frame->frmheight) |
| 1275 | return ParseState_NextFrame; |
| 1276 | else |
| 1277 | return ParseState_Continue; |
| 1278 | } |
| 1279 | |
| 1280 | /* |
| 1281 | * usbvision_parse_data() |
| 1282 | * |
| 1283 | * Generic routine to parse the scratch buffer. It employs either |
| 1284 | * usbvision_find_header() or usbvision_parse_lines() to do most |
| 1285 | * of work. |
| 1286 | * |
| 1287 | */ |
| 1288 | static void usbvision_parse_data(struct usb_usbvision *usbvision) |
| 1289 | { |
| 1290 | struct usbvision_frame *frame; |
| 1291 | enum ParseState newstate; |
| 1292 | long copylen = 0; |
Thierry MERLE | f2242ee | 2006-12-04 08:31:14 -0300 | [diff] [blame] | 1293 | unsigned long lock_flags; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 1294 | |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 1295 | frame = usbvision->curFrame; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 1296 | |
| 1297 | PDEBUG(DBG_PARSE, "parsing len=%d\n", scratch_len(usbvision)); |
| 1298 | |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 1299 | while (1) { |
| 1300 | |
| 1301 | newstate = ParseState_Out; |
| 1302 | if (scratch_len(usbvision)) { |
| 1303 | if (frame->scanstate == ScanState_Scanning) { |
| 1304 | newstate = usbvision_find_header(usbvision); |
| 1305 | } |
| 1306 | else if (frame->scanstate == ScanState_Lines) { |
| 1307 | if (usbvision->isocMode == ISOC_MODE_YUV420) { |
| 1308 | newstate = usbvision_parse_lines_420(usbvision, ©len); |
| 1309 | } |
| 1310 | else if (usbvision->isocMode == ISOC_MODE_YUV422) { |
| 1311 | newstate = usbvision_parse_lines_422(usbvision, ©len); |
| 1312 | } |
| 1313 | else if (usbvision->isocMode == ISOC_MODE_COMPRESS) { |
| 1314 | newstate = usbvision_parse_compress(usbvision, ©len); |
| 1315 | } |
| 1316 | |
| 1317 | } |
| 1318 | } |
| 1319 | if (newstate == ParseState_Continue) { |
| 1320 | continue; |
| 1321 | } |
| 1322 | else if ((newstate == ParseState_NextFrame) || (newstate == ParseState_Out)) { |
| 1323 | break; |
| 1324 | } |
| 1325 | else { |
| 1326 | return; /* ParseState_EndParse */ |
| 1327 | } |
| 1328 | } |
| 1329 | |
| 1330 | if (newstate == ParseState_NextFrame) { |
| 1331 | frame->grabstate = FrameState_Done; |
| 1332 | do_gettimeofday(&(frame->timestamp)); |
| 1333 | frame->sequence = usbvision->frame_num; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 1334 | |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 1335 | spin_lock_irqsave(&usbvision->queue_lock, lock_flags); |
| 1336 | list_move_tail(&(frame->frame), &usbvision->outqueue); |
| 1337 | usbvision->curFrame = NULL; |
| 1338 | spin_unlock_irqrestore(&usbvision->queue_lock, lock_flags); |
| 1339 | |
| 1340 | usbvision->frame_num++; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 1341 | |
| 1342 | /* This will cause the process to request another frame. */ |
Thierry MERLE | f2242ee | 2006-12-04 08:31:14 -0300 | [diff] [blame] | 1343 | if (waitqueue_active(&usbvision->wait_frame)) { |
| 1344 | PDEBUG(DBG_PARSE, "Wake up !"); |
| 1345 | wake_up_interruptible(&usbvision->wait_frame); |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 1346 | } |
| 1347 | } |
Thierry MERLE | f2242ee | 2006-12-04 08:31:14 -0300 | [diff] [blame] | 1348 | else |
| 1349 | frame->grabstate = FrameState_Grabbing; |
| 1350 | |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 1351 | |
| 1352 | /* Update the frame's uncompressed length. */ |
| 1353 | frame->scanlength += copylen; |
| 1354 | } |
| 1355 | |
| 1356 | |
| 1357 | /* |
| 1358 | * Make all of the blocks of data contiguous |
| 1359 | */ |
| 1360 | static int usbvision_compress_isochronous(struct usb_usbvision *usbvision, |
Thierry MERLE | f2242ee | 2006-12-04 08:31:14 -0300 | [diff] [blame] | 1361 | struct urb *urb) |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 1362 | { |
| 1363 | unsigned char *packet_data; |
| 1364 | int i, totlen = 0; |
| 1365 | |
| 1366 | for (i = 0; i < urb->number_of_packets; i++) { |
| 1367 | int packet_len = urb->iso_frame_desc[i].actual_length; |
| 1368 | int packet_stat = urb->iso_frame_desc[i].status; |
| 1369 | |
| 1370 | packet_data = urb->transfer_buffer + urb->iso_frame_desc[i].offset; |
| 1371 | |
| 1372 | /* Detect and ignore errored packets */ |
| 1373 | if (packet_stat) { // packet_stat != 0 ????????????? |
| 1374 | PDEBUG(DBG_ISOC, "data error: [%d] len=%d, status=%X", i, packet_len, packet_stat); |
| 1375 | usbvision->isocErrCount++; |
| 1376 | continue; |
| 1377 | } |
| 1378 | |
| 1379 | /* Detect and ignore empty packets */ |
| 1380 | if (packet_len < 0) { |
| 1381 | PDEBUG(DBG_ISOC, "error packet [%d]", i); |
| 1382 | usbvision->isocSkipCount++; |
| 1383 | continue; |
| 1384 | } |
| 1385 | else if (packet_len == 0) { /* Frame end ????? */ |
| 1386 | PDEBUG(DBG_ISOC, "null packet [%d]", i); |
| 1387 | usbvision->isocstate=IsocState_NoFrame; |
| 1388 | usbvision->isocSkipCount++; |
| 1389 | continue; |
| 1390 | } |
| 1391 | else if (packet_len > usbvision->isocPacketSize) { |
| 1392 | PDEBUG(DBG_ISOC, "packet[%d] > isocPacketSize", i); |
| 1393 | usbvision->isocSkipCount++; |
| 1394 | continue; |
| 1395 | } |
| 1396 | |
| 1397 | PDEBUG(DBG_ISOC, "packet ok [%d] len=%d", i, packet_len); |
| 1398 | |
| 1399 | if (usbvision->isocstate==IsocState_NoFrame) { //new frame begins |
| 1400 | usbvision->isocstate=IsocState_InFrame; |
| 1401 | scratch_mark_header(usbvision); |
| 1402 | usbvision_measure_bandwidth(usbvision); |
| 1403 | PDEBUG(DBG_ISOC, "packet with header"); |
| 1404 | } |
| 1405 | |
| 1406 | /* |
| 1407 | * If usbvision continues to feed us with data but there is no |
| 1408 | * consumption (if, for example, V4L client fell asleep) we |
| 1409 | * may overflow the buffer. We have to move old data over to |
| 1410 | * free room for new data. This is bad for old data. If we |
| 1411 | * just drop new data then it's bad for new data... choose |
| 1412 | * your favorite evil here. |
| 1413 | */ |
| 1414 | if (scratch_free(usbvision) < packet_len) { |
| 1415 | |
| 1416 | usbvision->scratch_ovf_count++; |
| 1417 | PDEBUG(DBG_ISOC, "scratch buf overflow! scr_len: %d, n: %d", |
| 1418 | scratch_len(usbvision), packet_len); |
| 1419 | scratch_rm_old(usbvision, packet_len - scratch_free(usbvision)); |
| 1420 | } |
| 1421 | |
| 1422 | /* Now we know that there is enough room in scratch buffer */ |
| 1423 | scratch_put(usbvision, packet_data, packet_len); |
| 1424 | totlen += packet_len; |
| 1425 | usbvision->isocDataCount += packet_len; |
| 1426 | usbvision->isocPacketCount++; |
| 1427 | } |
| 1428 | #if ENABLE_HEXDUMP |
| 1429 | if (totlen > 0) { |
Douglas Schilling Landgraf | ff699e6 | 2008-04-22 14:41:48 -0300 | [diff] [blame] | 1430 | static int foo; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 1431 | if (foo < 1) { |
| 1432 | printk(KERN_DEBUG "+%d.\n", usbvision->scratchlen); |
| 1433 | usbvision_hexdump(data0, (totlen > 64) ? 64 : totlen); |
| 1434 | ++foo; |
| 1435 | } |
| 1436 | } |
| 1437 | #endif |
| 1438 | return totlen; |
| 1439 | } |
| 1440 | |
Mauro Carvalho Chehab | a1ed551 | 2006-12-09 11:41:59 -0300 | [diff] [blame] | 1441 | static void usbvision_isocIrq(struct urb *urb) |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 1442 | { |
Thierry MERLE | f2242ee | 2006-12-04 08:31:14 -0300 | [diff] [blame] | 1443 | int errCode = 0; |
| 1444 | int len; |
| 1445 | struct usb_usbvision *usbvision = urb->context; |
| 1446 | int i; |
| 1447 | unsigned long startTime = jiffies; |
| 1448 | struct usbvision_frame **f; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 1449 | |
Thierry MERLE | f2242ee | 2006-12-04 08:31:14 -0300 | [diff] [blame] | 1450 | /* We don't want to do anything if we are about to be removed! */ |
| 1451 | if (!USBVISION_IS_OPERATIONAL(usbvision)) |
| 1452 | return; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 1453 | |
Thierry Merle | fe818d1 | 2007-05-27 17:21:17 -0300 | [diff] [blame] | 1454 | /* any urb with wrong status is ignored without acknowledgement */ |
| 1455 | if (urb->status == -ENOENT) { |
| 1456 | return; |
| 1457 | } |
| 1458 | |
Thierry MERLE | f2242ee | 2006-12-04 08:31:14 -0300 | [diff] [blame] | 1459 | f = &usbvision->curFrame; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 1460 | |
Thierry MERLE | f2242ee | 2006-12-04 08:31:14 -0300 | [diff] [blame] | 1461 | /* Manage streaming interruption */ |
| 1462 | if (usbvision->streaming == Stream_Interrupt) { |
Thierry | 5f7fb87 | 2006-12-04 08:31:17 -0300 | [diff] [blame] | 1463 | usbvision->streaming = Stream_Idle; |
Thierry MERLE | f2242ee | 2006-12-04 08:31:14 -0300 | [diff] [blame] | 1464 | if ((*f)) { |
| 1465 | (*f)->grabstate = FrameState_Ready; |
| 1466 | (*f)->scanstate = ScanState_Scanning; |
| 1467 | } |
| 1468 | PDEBUG(DBG_IRQ, "stream interrupted"); |
| 1469 | wake_up_interruptible(&usbvision->wait_stream); |
| 1470 | } |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 1471 | |
Thierry MERLE | f2242ee | 2006-12-04 08:31:14 -0300 | [diff] [blame] | 1472 | /* Copy the data received into our scratch buffer */ |
| 1473 | len = usbvision_compress_isochronous(usbvision, urb); |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 1474 | |
Thierry MERLE | f2242ee | 2006-12-04 08:31:14 -0300 | [diff] [blame] | 1475 | usbvision->isocUrbCount++; |
| 1476 | usbvision->urb_length = len; |
| 1477 | |
| 1478 | if (usbvision->streaming == Stream_On) { |
| 1479 | |
| 1480 | /* If we collected enough data let's parse! */ |
Thierry Merle | fe818d1 | 2007-05-27 17:21:17 -0300 | [diff] [blame] | 1481 | if ((scratch_len(usbvision) > USBVISION_HEADER_LENGTH) && |
| 1482 | (!list_empty(&(usbvision->inqueue))) ) { |
| 1483 | if (!(*f)) { |
| 1484 | (*f) = list_entry(usbvision->inqueue.next, |
| 1485 | struct usbvision_frame, |
| 1486 | frame); |
Thierry MERLE | f2242ee | 2006-12-04 08:31:14 -0300 | [diff] [blame] | 1487 | } |
Thierry Merle | fe818d1 | 2007-05-27 17:21:17 -0300 | [diff] [blame] | 1488 | usbvision_parse_data(usbvision); |
| 1489 | } |
| 1490 | else { |
| 1491 | /*If we don't have a frame |
| 1492 | we're current working on, complain */ |
| 1493 | PDEBUG(DBG_IRQ, |
| 1494 | "received data, but no one needs it"); |
| 1495 | scratch_reset(usbvision); |
Thierry MERLE | f2242ee | 2006-12-04 08:31:14 -0300 | [diff] [blame] | 1496 | } |
| 1497 | } |
Thierry MERLE | 40bad678 | 2006-12-04 08:31:24 -0300 | [diff] [blame] | 1498 | else { |
| 1499 | PDEBUG(DBG_IRQ, "received data, but no one needs it"); |
| 1500 | scratch_reset(usbvision); |
| 1501 | } |
Thierry MERLE | f2242ee | 2006-12-04 08:31:14 -0300 | [diff] [blame] | 1502 | |
| 1503 | usbvision->timeInIrq += jiffies - startTime; |
| 1504 | |
| 1505 | for (i = 0; i < USBVISION_URB_FRAMES; i++) { |
| 1506 | urb->iso_frame_desc[i].status = 0; |
| 1507 | urb->iso_frame_desc[i].actual_length = 0; |
| 1508 | } |
| 1509 | |
Dwaine Garden | 18d8a45 | 2006-12-04 08:31:11 -0300 | [diff] [blame] | 1510 | urb->status = 0; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 1511 | urb->dev = usbvision->dev; |
| 1512 | errCode = usb_submit_urb (urb, GFP_ATOMIC); |
| 1513 | |
Thierry Merle | fe818d1 | 2007-05-27 17:21:17 -0300 | [diff] [blame] | 1514 | if(errCode) { |
Mauro Carvalho Chehab | be9ed51 | 2009-01-08 09:13:42 -0300 | [diff] [blame] | 1515 | dev_err(&usbvision->dev->dev, |
| 1516 | "%s: usb_submit_urb failed: error %d\n", |
| 1517 | __func__, errCode); |
Thierry Merle | fe818d1 | 2007-05-27 17:21:17 -0300 | [diff] [blame] | 1518 | } |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 1519 | |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 1520 | return; |
| 1521 | } |
| 1522 | |
| 1523 | /*************************************/ |
| 1524 | /* Low level usbvision access functions */ |
| 1525 | /*************************************/ |
| 1526 | |
| 1527 | /* |
| 1528 | * usbvision_read_reg() |
| 1529 | * |
| 1530 | * return < 0 -> Error |
| 1531 | * >= 0 -> Data |
| 1532 | */ |
| 1533 | |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 1534 | int usbvision_read_reg(struct usb_usbvision *usbvision, unsigned char reg) |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 1535 | { |
| 1536 | int errCode = 0; |
| 1537 | unsigned char buffer[1]; |
| 1538 | |
| 1539 | if (!USBVISION_IS_OPERATIONAL(usbvision)) |
| 1540 | return -1; |
| 1541 | |
| 1542 | errCode = usb_control_msg(usbvision->dev, usb_rcvctrlpipe(usbvision->dev, 1), |
| 1543 | USBVISION_OP_CODE, |
| 1544 | USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT, |
| 1545 | 0, (__u16) reg, buffer, 1, HZ); |
| 1546 | |
| 1547 | if (errCode < 0) { |
Mauro Carvalho Chehab | be9ed51 | 2009-01-08 09:13:42 -0300 | [diff] [blame] | 1548 | dev_err(&usbvision->dev->dev, |
| 1549 | "%s: failed: error %d\n", __func__, errCode); |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 1550 | return errCode; |
| 1551 | } |
| 1552 | return buffer[0]; |
| 1553 | } |
| 1554 | |
| 1555 | /* |
| 1556 | * usbvision_write_reg() |
| 1557 | * |
| 1558 | * return 1 -> Reg written |
| 1559 | * 0 -> usbvision is not yet ready |
| 1560 | * -1 -> Something went wrong |
| 1561 | */ |
| 1562 | |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 1563 | int usbvision_write_reg(struct usb_usbvision *usbvision, unsigned char reg, |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 1564 | unsigned char value) |
| 1565 | { |
| 1566 | int errCode = 0; |
| 1567 | |
| 1568 | if (!USBVISION_IS_OPERATIONAL(usbvision)) |
| 1569 | return 0; |
| 1570 | |
| 1571 | errCode = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1), |
| 1572 | USBVISION_OP_CODE, |
| 1573 | USB_DIR_OUT | USB_TYPE_VENDOR | |
| 1574 | USB_RECIP_ENDPOINT, 0, (__u16) reg, &value, 1, HZ); |
| 1575 | |
| 1576 | if (errCode < 0) { |
Mauro Carvalho Chehab | be9ed51 | 2009-01-08 09:13:42 -0300 | [diff] [blame] | 1577 | dev_err(&usbvision->dev->dev, |
| 1578 | "%s: failed: error %d\n", __func__, errCode); |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 1579 | } |
| 1580 | return errCode; |
| 1581 | } |
| 1582 | |
| 1583 | |
Mauro Carvalho Chehab | a1ed551 | 2006-12-09 11:41:59 -0300 | [diff] [blame] | 1584 | static void usbvision_ctrlUrb_complete(struct urb *urb) |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 1585 | { |
| 1586 | struct usb_usbvision *usbvision = (struct usb_usbvision *)urb->context; |
| 1587 | |
| 1588 | PDEBUG(DBG_IRQ, ""); |
| 1589 | usbvision->ctrlUrbBusy = 0; |
| 1590 | if (waitqueue_active(&usbvision->ctrlUrb_wq)) { |
| 1591 | wake_up_interruptible(&usbvision->ctrlUrb_wq); |
| 1592 | } |
| 1593 | } |
| 1594 | |
| 1595 | |
| 1596 | static int usbvision_write_reg_irq(struct usb_usbvision *usbvision,int address, |
| 1597 | unsigned char *data, int len) |
| 1598 | { |
| 1599 | int errCode = 0; |
| 1600 | |
| 1601 | PDEBUG(DBG_IRQ, ""); |
| 1602 | if (len > 8) { |
| 1603 | return -EFAULT; |
| 1604 | } |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 1605 | if (usbvision->ctrlUrbBusy) { |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 1606 | return -EBUSY; |
| 1607 | } |
| 1608 | usbvision->ctrlUrbBusy = 1; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 1609 | |
| 1610 | usbvision->ctrlUrbSetup.bRequestType = USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT; |
| 1611 | usbvision->ctrlUrbSetup.bRequest = USBVISION_OP_CODE; |
| 1612 | usbvision->ctrlUrbSetup.wValue = 0; |
| 1613 | usbvision->ctrlUrbSetup.wIndex = cpu_to_le16(address); |
| 1614 | usbvision->ctrlUrbSetup.wLength = cpu_to_le16(len); |
| 1615 | usb_fill_control_urb (usbvision->ctrlUrb, usbvision->dev, |
| 1616 | usb_sndctrlpipe(usbvision->dev, 1), |
| 1617 | (unsigned char *)&usbvision->ctrlUrbSetup, |
| 1618 | (void *)usbvision->ctrlUrbBuffer, len, |
| 1619 | usbvision_ctrlUrb_complete, |
| 1620 | (void *)usbvision); |
| 1621 | |
| 1622 | memcpy(usbvision->ctrlUrbBuffer, data, len); |
| 1623 | |
| 1624 | errCode = usb_submit_urb(usbvision->ctrlUrb, GFP_ATOMIC); |
| 1625 | if (errCode < 0) { |
| 1626 | // error in usb_submit_urb() |
| 1627 | usbvision->ctrlUrbBusy = 0; |
| 1628 | } |
| 1629 | PDEBUG(DBG_IRQ, "submit %d byte: error %d", len, errCode); |
| 1630 | return errCode; |
| 1631 | } |
| 1632 | |
| 1633 | |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 1634 | static int usbvision_init_compression(struct usb_usbvision *usbvision) |
| 1635 | { |
| 1636 | int errCode = 0; |
| 1637 | |
| 1638 | usbvision->lastIsocFrameNum = -1; |
| 1639 | usbvision->isocDataCount = 0; |
| 1640 | usbvision->isocPacketCount = 0; |
| 1641 | usbvision->isocSkipCount = 0; |
| 1642 | usbvision->comprLevel = 50; |
| 1643 | usbvision->lastComprLevel = -1; |
| 1644 | usbvision->isocUrbCount = 0; |
| 1645 | usbvision->requestIntra = 1; |
| 1646 | usbvision->isocMeasureBandwidthCount = 0; |
| 1647 | |
| 1648 | return errCode; |
| 1649 | } |
| 1650 | |
| 1651 | /* this function measures the used bandwidth since last call |
| 1652 | * return: 0 : no error |
| 1653 | * sets usedBandwidth to 1-100 : 1-100% of full bandwidth resp. to isocPacketSize |
| 1654 | */ |
| 1655 | static int usbvision_measure_bandwidth (struct usb_usbvision *usbvision) |
| 1656 | { |
| 1657 | int errCode = 0; |
| 1658 | |
| 1659 | if (usbvision->isocMeasureBandwidthCount < 2) { // this gives an average bandwidth of 3 frames |
| 1660 | usbvision->isocMeasureBandwidthCount++; |
| 1661 | return errCode; |
| 1662 | } |
| 1663 | if ((usbvision->isocPacketSize > 0) && (usbvision->isocPacketCount > 0)) { |
| 1664 | usbvision->usedBandwidth = usbvision->isocDataCount / |
| 1665 | (usbvision->isocPacketCount + usbvision->isocSkipCount) * |
| 1666 | 100 / usbvision->isocPacketSize; |
| 1667 | } |
| 1668 | usbvision->isocMeasureBandwidthCount = 0; |
| 1669 | usbvision->isocDataCount = 0; |
| 1670 | usbvision->isocPacketCount = 0; |
| 1671 | usbvision->isocSkipCount = 0; |
| 1672 | return errCode; |
| 1673 | } |
| 1674 | |
| 1675 | static int usbvision_adjust_compression (struct usb_usbvision *usbvision) |
| 1676 | { |
| 1677 | int errCode = 0; |
| 1678 | unsigned char buffer[6]; |
| 1679 | |
| 1680 | PDEBUG(DBG_IRQ, ""); |
| 1681 | if ((adjustCompression) && (usbvision->usedBandwidth > 0)) { |
| 1682 | usbvision->comprLevel += (usbvision->usedBandwidth - 90) / 2; |
| 1683 | RESTRICT_TO_RANGE(usbvision->comprLevel, 0, 100); |
| 1684 | if (usbvision->comprLevel != usbvision->lastComprLevel) { |
| 1685 | int distorsion; |
| 1686 | if (usbvision->bridgeType == BRIDGE_NT1004 || usbvision->bridgeType == BRIDGE_NT1005) { |
| 1687 | buffer[0] = (unsigned char)(4 + 16 * usbvision->comprLevel / 100); // PCM Threshold 1 |
| 1688 | buffer[1] = (unsigned char)(4 + 8 * usbvision->comprLevel / 100); // PCM Threshold 2 |
| 1689 | distorsion = 7 + 248 * usbvision->comprLevel / 100; |
| 1690 | buffer[2] = (unsigned char)(distorsion & 0xFF); // Average distorsion Threshold (inter) |
| 1691 | buffer[3] = (unsigned char)(distorsion & 0xFF); // Average distorsion Threshold (intra) |
| 1692 | distorsion = 1 + 42 * usbvision->comprLevel / 100; |
| 1693 | buffer[4] = (unsigned char)(distorsion & 0xFF); // Maximum distorsion Threshold (inter) |
| 1694 | buffer[5] = (unsigned char)(distorsion & 0xFF); // Maximum distorsion Threshold (intra) |
| 1695 | } |
| 1696 | else { //BRIDGE_NT1003 |
| 1697 | buffer[0] = (unsigned char)(4 + 16 * usbvision->comprLevel / 100); // PCM threshold 1 |
| 1698 | buffer[1] = (unsigned char)(4 + 8 * usbvision->comprLevel / 100); // PCM threshold 2 |
| 1699 | distorsion = 2 + 253 * usbvision->comprLevel / 100; |
| 1700 | buffer[2] = (unsigned char)(distorsion & 0xFF); // distorsion threshold bit0-7 |
| 1701 | buffer[3] = 0; //(unsigned char)((distorsion >> 8) & 0x0F); // distorsion threshold bit 8-11 |
| 1702 | distorsion = 0 + 43 * usbvision->comprLevel / 100; |
| 1703 | buffer[4] = (unsigned char)(distorsion & 0xFF); // maximum distorsion bit0-7 |
| 1704 | buffer[5] = 0; //(unsigned char)((distorsion >> 8) & 0x01); // maximum distorsion bit 8 |
| 1705 | } |
| 1706 | errCode = usbvision_write_reg_irq(usbvision, USBVISION_PCM_THR1, buffer, 6); |
| 1707 | if (errCode == 0){ |
| 1708 | PDEBUG(DBG_IRQ, "new compr params %#02x %#02x %#02x %#02x %#02x %#02x", buffer[0], |
| 1709 | buffer[1], buffer[2], buffer[3], buffer[4], buffer[5]); |
| 1710 | usbvision->lastComprLevel = usbvision->comprLevel; |
| 1711 | } |
| 1712 | } |
| 1713 | } |
| 1714 | return errCode; |
| 1715 | } |
| 1716 | |
| 1717 | static int usbvision_request_intra (struct usb_usbvision *usbvision) |
| 1718 | { |
| 1719 | int errCode = 0; |
| 1720 | unsigned char buffer[1]; |
| 1721 | |
| 1722 | PDEBUG(DBG_IRQ, ""); |
| 1723 | usbvision->requestIntra = 1; |
| 1724 | buffer[0] = 1; |
| 1725 | usbvision_write_reg_irq(usbvision, USBVISION_FORCE_INTRA, buffer, 1); |
| 1726 | return errCode; |
| 1727 | } |
| 1728 | |
| 1729 | static int usbvision_unrequest_intra (struct usb_usbvision *usbvision) |
| 1730 | { |
| 1731 | int errCode = 0; |
| 1732 | unsigned char buffer[1]; |
| 1733 | |
| 1734 | PDEBUG(DBG_IRQ, ""); |
| 1735 | usbvision->requestIntra = 0; |
| 1736 | buffer[0] = 0; |
| 1737 | usbvision_write_reg_irq(usbvision, USBVISION_FORCE_INTRA, buffer, 1); |
| 1738 | return errCode; |
| 1739 | } |
| 1740 | |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 1741 | /******************************* |
| 1742 | * usbvision utility functions |
| 1743 | *******************************/ |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 1744 | |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 1745 | int usbvision_power_off(struct usb_usbvision *usbvision) |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 1746 | { |
| 1747 | int errCode = 0; |
| 1748 | |
| 1749 | PDEBUG(DBG_FUNC, ""); |
| 1750 | |
| 1751 | errCode = usbvision_write_reg(usbvision, USBVISION_PWR_REG, USBVISION_SSPND_EN); |
| 1752 | if (errCode == 1) { |
| 1753 | usbvision->power = 0; |
| 1754 | } |
| 1755 | PDEBUG(DBG_FUNC, "%s: errCode %d", (errCode!=1)?"ERROR":"power is off", errCode); |
| 1756 | return errCode; |
| 1757 | } |
| 1758 | |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 1759 | /* |
| 1760 | * usbvision_set_video_format() |
| 1761 | * |
| 1762 | */ |
| 1763 | static int usbvision_set_video_format(struct usb_usbvision *usbvision, int format) |
| 1764 | { |
| 1765 | static const char proc[] = "usbvision_set_video_format"; |
| 1766 | int rc; |
| 1767 | unsigned char value[2]; |
| 1768 | |
| 1769 | if (!USBVISION_IS_OPERATIONAL(usbvision)) |
| 1770 | return 0; |
| 1771 | |
| 1772 | PDEBUG(DBG_FUNC, "isocMode %#02x", format); |
| 1773 | |
| 1774 | if ((format != ISOC_MODE_YUV422) |
| 1775 | && (format != ISOC_MODE_YUV420) |
| 1776 | && (format != ISOC_MODE_COMPRESS)) { |
| 1777 | printk(KERN_ERR "usbvision: unknown video format %02x, using default YUV420", |
| 1778 | format); |
| 1779 | format = ISOC_MODE_YUV420; |
| 1780 | } |
| 1781 | value[0] = 0x0A; //TODO: See the effect of the filter |
David Warman | 8c7189d | 2007-04-30 14:17:04 -0300 | [diff] [blame] | 1782 | value[1] = format; // Sets the VO_MODE register which follows FILT_CONT |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 1783 | rc = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1), |
| 1784 | USBVISION_OP_CODE, |
| 1785 | USB_DIR_OUT | USB_TYPE_VENDOR | |
| 1786 | USB_RECIP_ENDPOINT, 0, |
| 1787 | (__u16) USBVISION_FILT_CONT, value, 2, HZ); |
| 1788 | |
| 1789 | if (rc < 0) { |
| 1790 | printk(KERN_ERR "%s: ERROR=%d. USBVISION stopped - " |
| 1791 | "reconnect or reload driver.\n", proc, rc); |
| 1792 | } |
| 1793 | usbvision->isocMode = format; |
| 1794 | return rc; |
| 1795 | } |
| 1796 | |
| 1797 | /* |
| 1798 | * usbvision_set_output() |
| 1799 | * |
| 1800 | */ |
| 1801 | |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 1802 | int usbvision_set_output(struct usb_usbvision *usbvision, int width, |
| 1803 | int height) |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 1804 | { |
| 1805 | int errCode = 0; |
| 1806 | int UsbWidth, UsbHeight; |
| 1807 | unsigned int frameRate=0, frameDrop=0; |
| 1808 | unsigned char value[4]; |
| 1809 | |
| 1810 | if (!USBVISION_IS_OPERATIONAL(usbvision)) { |
| 1811 | return 0; |
| 1812 | } |
| 1813 | |
| 1814 | if (width > MAX_USB_WIDTH) { |
| 1815 | UsbWidth = width / 2; |
| 1816 | usbvision->stretch_width = 2; |
| 1817 | } |
| 1818 | else { |
| 1819 | UsbWidth = width; |
| 1820 | usbvision->stretch_width = 1; |
| 1821 | } |
| 1822 | |
| 1823 | if (height > MAX_USB_HEIGHT) { |
| 1824 | UsbHeight = height / 2; |
| 1825 | usbvision->stretch_height = 2; |
| 1826 | } |
| 1827 | else { |
| 1828 | UsbHeight = height; |
| 1829 | usbvision->stretch_height = 1; |
| 1830 | } |
| 1831 | |
| 1832 | RESTRICT_TO_RANGE(UsbWidth, MIN_FRAME_WIDTH, MAX_USB_WIDTH); |
| 1833 | UsbWidth &= ~(MIN_FRAME_WIDTH-1); |
| 1834 | RESTRICT_TO_RANGE(UsbHeight, MIN_FRAME_HEIGHT, MAX_USB_HEIGHT); |
| 1835 | UsbHeight &= ~(1); |
| 1836 | |
| 1837 | PDEBUG(DBG_FUNC, "usb %dx%d; screen %dx%d; stretch %dx%d", |
| 1838 | UsbWidth, UsbHeight, width, height, |
| 1839 | usbvision->stretch_width, usbvision->stretch_height); |
| 1840 | |
| 1841 | /* I'll not rewrite the same values */ |
| 1842 | if ((UsbWidth != usbvision->curwidth) || (UsbHeight != usbvision->curheight)) { |
| 1843 | value[0] = UsbWidth & 0xff; //LSB |
| 1844 | value[1] = (UsbWidth >> 8) & 0x03; //MSB |
| 1845 | value[2] = UsbHeight & 0xff; //LSB |
| 1846 | value[3] = (UsbHeight >> 8) & 0x03; //MSB |
| 1847 | |
| 1848 | errCode = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1), |
| 1849 | USBVISION_OP_CODE, |
| 1850 | USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT, |
| 1851 | 0, (__u16) USBVISION_LXSIZE_O, value, 4, HZ); |
| 1852 | |
| 1853 | if (errCode < 0) { |
Mauro Carvalho Chehab | be9ed51 | 2009-01-08 09:13:42 -0300 | [diff] [blame] | 1854 | dev_err(&usbvision->dev->dev, |
| 1855 | "%s failed: error %d\n", __func__, errCode); |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 1856 | return errCode; |
| 1857 | } |
| 1858 | usbvision->curwidth = usbvision->stretch_width * UsbWidth; |
| 1859 | usbvision->curheight = usbvision->stretch_height * UsbHeight; |
| 1860 | } |
| 1861 | |
| 1862 | if (usbvision->isocMode == ISOC_MODE_YUV422) { |
| 1863 | frameRate = (usbvision->isocPacketSize * 1000) / (UsbWidth * UsbHeight * 2); |
| 1864 | } |
| 1865 | else if (usbvision->isocMode == ISOC_MODE_YUV420) { |
| 1866 | frameRate = (usbvision->isocPacketSize * 1000) / ((UsbWidth * UsbHeight * 12) / 8); |
| 1867 | } |
| 1868 | else { |
| 1869 | frameRate = FRAMERATE_MAX; |
| 1870 | } |
| 1871 | |
Thierry MERLE | c5f4836 | 2007-05-08 17:22:29 -0300 | [diff] [blame] | 1872 | if (usbvision->tvnormId & V4L2_STD_625_50) { |
Dwaine Garden | 18d8a45 | 2006-12-04 08:31:11 -0300 | [diff] [blame] | 1873 | frameDrop = frameRate * 32 / 25 - 1; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 1874 | } |
Thierry MERLE | c5f4836 | 2007-05-08 17:22:29 -0300 | [diff] [blame] | 1875 | else if (usbvision->tvnormId & V4L2_STD_525_60) { |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 1876 | frameDrop = frameRate * 32 / 30 - 1; |
| 1877 | } |
| 1878 | |
| 1879 | RESTRICT_TO_RANGE(frameDrop, FRAMERATE_MIN, FRAMERATE_MAX); |
| 1880 | |
| 1881 | PDEBUG(DBG_FUNC, "frameRate %d fps, frameDrop %d", frameRate, frameDrop); |
| 1882 | |
| 1883 | frameDrop = FRAMERATE_MAX; // We can allow the maximum here, because dropping is controlled |
| 1884 | |
| 1885 | /* frameDrop = 7; => framePhase = 1, 5, 9, 13, 17, 21, 25, 0, 4, 8, ... |
| 1886 | => frameSkip = 4; |
| 1887 | => frameRate = (7 + 1) * 25 / 32 = 200 / 32 = 6.25; |
| 1888 | |
| 1889 | frameDrop = 9; => framePhase = 1, 5, 8, 11, 14, 17, 21, 24, 27, 1, 4, 8, ... |
| 1890 | => frameSkip = 4, 3, 3, 3, 3, 4, 3, 3, 3, 3, 4, ... |
| 1891 | => frameRate = (9 + 1) * 25 / 32 = 250 / 32 = 7.8125; |
| 1892 | */ |
| 1893 | errCode = usbvision_write_reg(usbvision, USBVISION_FRM_RATE, frameDrop); |
| 1894 | return errCode; |
| 1895 | } |
| 1896 | |
| 1897 | |
| 1898 | /* |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 1899 | * usbvision_frames_alloc |
Thierry MERLE | 6f78e18 | 2007-02-07 10:13:11 -0300 | [diff] [blame] | 1900 | * allocate the required frames |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 1901 | */ |
Thierry MERLE | 6f78e18 | 2007-02-07 10:13:11 -0300 | [diff] [blame] | 1902 | int usbvision_frames_alloc(struct usb_usbvision *usbvision, int number_of_frames) |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 1903 | { |
| 1904 | int i; |
| 1905 | |
Thierry MERLE | 6f78e18 | 2007-02-07 10:13:11 -0300 | [diff] [blame] | 1906 | /*needs to be page aligned cause the buffers can be mapped individually! */ |
| 1907 | usbvision->max_frame_size = PAGE_ALIGN(usbvision->curwidth * |
| 1908 | usbvision->curheight * |
| 1909 | usbvision->palette.bytes_per_pixel); |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 1910 | |
Thierry MERLE | 6f78e18 | 2007-02-07 10:13:11 -0300 | [diff] [blame] | 1911 | /* Try to do my best to allocate the frames the user want in the remaining memory */ |
| 1912 | usbvision->num_frames = number_of_frames; |
| 1913 | while (usbvision->num_frames > 0) { |
| 1914 | usbvision->fbuf_size = usbvision->num_frames * usbvision->max_frame_size; |
| 1915 | if((usbvision->fbuf = usbvision_rvmalloc(usbvision->fbuf_size))) { |
| 1916 | break; |
| 1917 | } |
| 1918 | usbvision->num_frames--; |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 1919 | } |
Thierry MERLE | 6f78e18 | 2007-02-07 10:13:11 -0300 | [diff] [blame] | 1920 | |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 1921 | spin_lock_init(&usbvision->queue_lock); |
| 1922 | init_waitqueue_head(&usbvision->wait_frame); |
| 1923 | init_waitqueue_head(&usbvision->wait_stream); |
| 1924 | |
| 1925 | /* Allocate all buffers */ |
Thierry MERLE | 6f78e18 | 2007-02-07 10:13:11 -0300 | [diff] [blame] | 1926 | for (i = 0; i < usbvision->num_frames; i++) { |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 1927 | usbvision->frame[i].index = i; |
| 1928 | usbvision->frame[i].grabstate = FrameState_Unused; |
| 1929 | usbvision->frame[i].data = usbvision->fbuf + |
| 1930 | i * usbvision->max_frame_size; |
| 1931 | /* |
| 1932 | * Set default sizes for read operation. |
| 1933 | */ |
| 1934 | usbvision->stretch_width = 1; |
| 1935 | usbvision->stretch_height = 1; |
| 1936 | usbvision->frame[i].width = usbvision->curwidth; |
| 1937 | usbvision->frame[i].height = usbvision->curheight; |
| 1938 | usbvision->frame[i].bytes_read = 0; |
| 1939 | } |
Thierry MERLE | 6f78e18 | 2007-02-07 10:13:11 -0300 | [diff] [blame] | 1940 | PDEBUG(DBG_FUNC, "allocated %d frames (%d bytes per frame)",usbvision->num_frames,usbvision->max_frame_size); |
| 1941 | return usbvision->num_frames; |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 1942 | } |
| 1943 | |
| 1944 | /* |
| 1945 | * usbvision_frames_free |
| 1946 | * frees memory allocated for the frames |
| 1947 | */ |
| 1948 | void usbvision_frames_free(struct usb_usbvision *usbvision) |
| 1949 | { |
| 1950 | /* Have to free all that memory */ |
Thierry MERLE | 6f78e18 | 2007-02-07 10:13:11 -0300 | [diff] [blame] | 1951 | PDEBUG(DBG_FUNC, "free %d frames",usbvision->num_frames); |
| 1952 | |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 1953 | if (usbvision->fbuf != NULL) { |
| 1954 | usbvision_rvfree(usbvision->fbuf, usbvision->fbuf_size); |
| 1955 | usbvision->fbuf = NULL; |
Thierry MERLE | 6f78e18 | 2007-02-07 10:13:11 -0300 | [diff] [blame] | 1956 | |
| 1957 | usbvision->num_frames = 0; |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 1958 | } |
| 1959 | } |
| 1960 | /* |
Thierry MERLE | f2242ee | 2006-12-04 08:31:14 -0300 | [diff] [blame] | 1961 | * usbvision_empty_framequeues() |
| 1962 | * prepare queues for incoming and outgoing frames |
| 1963 | */ |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 1964 | void usbvision_empty_framequeues(struct usb_usbvision *usbvision) |
Thierry MERLE | f2242ee | 2006-12-04 08:31:14 -0300 | [diff] [blame] | 1965 | { |
| 1966 | u32 i; |
| 1967 | |
| 1968 | INIT_LIST_HEAD(&(usbvision->inqueue)); |
| 1969 | INIT_LIST_HEAD(&(usbvision->outqueue)); |
| 1970 | |
| 1971 | for (i = 0; i < USBVISION_NUMFRAMES; i++) { |
| 1972 | usbvision->frame[i].grabstate = FrameState_Unused; |
| 1973 | usbvision->frame[i].bytes_read = 0; |
| 1974 | } |
| 1975 | } |
| 1976 | |
| 1977 | /* |
| 1978 | * usbvision_stream_interrupt() |
| 1979 | * stops streaming |
| 1980 | */ |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 1981 | int usbvision_stream_interrupt(struct usb_usbvision *usbvision) |
Thierry MERLE | f2242ee | 2006-12-04 08:31:14 -0300 | [diff] [blame] | 1982 | { |
| 1983 | int ret = 0; |
| 1984 | |
| 1985 | /* stop reading from the device */ |
| 1986 | |
| 1987 | usbvision->streaming = Stream_Interrupt; |
| 1988 | ret = wait_event_timeout(usbvision->wait_stream, |
Thierry | 5f7fb87 | 2006-12-04 08:31:17 -0300 | [diff] [blame] | 1989 | (usbvision->streaming == Stream_Idle), |
Thierry MERLE | f2242ee | 2006-12-04 08:31:14 -0300 | [diff] [blame] | 1990 | msecs_to_jiffies(USBVISION_NUMSBUF*USBVISION_URB_FRAMES)); |
| 1991 | return ret; |
| 1992 | } |
| 1993 | |
| 1994 | /* |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 1995 | * usbvision_set_compress_params() |
| 1996 | * |
| 1997 | */ |
| 1998 | |
| 1999 | static int usbvision_set_compress_params(struct usb_usbvision *usbvision) |
| 2000 | { |
| 2001 | static const char proc[] = "usbvision_set_compresion_params: "; |
| 2002 | int rc; |
| 2003 | unsigned char value[6]; |
| 2004 | |
| 2005 | value[0] = 0x0F; // Intra-Compression cycle |
| 2006 | value[1] = 0x01; // Reg.45 one line per strip |
| 2007 | value[2] = 0x00; // Reg.46 Force intra mode on all new frames |
| 2008 | value[3] = 0x00; // Reg.47 FORCE_UP <- 0 normal operation (not force) |
| 2009 | value[4] = 0xA2; // Reg.48 BUF_THR I'm not sure if this does something in not compressed mode. |
Dwaine Garden | 18d8a45 | 2006-12-04 08:31:11 -0300 | [diff] [blame] | 2010 | value[5] = 0x00; // Reg.49 DVI_YUV This has nothing to do with compression |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2011 | |
| 2012 | //catched values for NT1004 |
| 2013 | // value[0] = 0xFF; // Never apply intra mode automatically |
| 2014 | // value[1] = 0xF1; // Use full frame height for virtual strip width; One line per strip |
| 2015 | // value[2] = 0x01; // Force intra mode on all new frames |
| 2016 | // value[3] = 0x00; // Strip size 400 Bytes; do not force up |
| 2017 | // value[4] = 0xA2; // |
| 2018 | if (!USBVISION_IS_OPERATIONAL(usbvision)) |
| 2019 | return 0; |
| 2020 | |
| 2021 | rc = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1), |
| 2022 | USBVISION_OP_CODE, |
| 2023 | USB_DIR_OUT | USB_TYPE_VENDOR | |
| 2024 | USB_RECIP_ENDPOINT, 0, |
| 2025 | (__u16) USBVISION_INTRA_CYC, value, 5, HZ); |
| 2026 | |
| 2027 | if (rc < 0) { |
| 2028 | printk(KERN_ERR "%sERROR=%d. USBVISION stopped - " |
| 2029 | "reconnect or reload driver.\n", proc, rc); |
| 2030 | return rc; |
| 2031 | } |
| 2032 | |
| 2033 | if (usbvision->bridgeType == BRIDGE_NT1004) { |
| 2034 | value[0] = 20; // PCM Threshold 1 |
| 2035 | value[1] = 12; // PCM Threshold 2 |
| 2036 | value[2] = 255; // Distorsion Threshold inter |
| 2037 | value[3] = 255; // Distorsion Threshold intra |
| 2038 | value[4] = 43; // Max Distorsion inter |
| 2039 | value[5] = 43; // Max Distorsion intra |
| 2040 | } |
| 2041 | else { |
| 2042 | value[0] = 20; // PCM Threshold 1 |
| 2043 | value[1] = 12; // PCM Threshold 2 |
| 2044 | value[2] = 255; // Distorsion Threshold d7-d0 |
| 2045 | value[3] = 0; // Distorsion Threshold d11-d8 |
| 2046 | value[4] = 43; // Max Distorsion d7-d0 |
| 2047 | value[5] = 0; // Max Distorsion d8 |
| 2048 | } |
| 2049 | |
| 2050 | if (!USBVISION_IS_OPERATIONAL(usbvision)) |
| 2051 | return 0; |
| 2052 | |
| 2053 | rc = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1), |
| 2054 | USBVISION_OP_CODE, |
| 2055 | USB_DIR_OUT | USB_TYPE_VENDOR | |
| 2056 | USB_RECIP_ENDPOINT, 0, |
| 2057 | (__u16) USBVISION_PCM_THR1, value, 6, HZ); |
| 2058 | |
| 2059 | if (rc < 0) { |
| 2060 | printk(KERN_ERR "%sERROR=%d. USBVISION stopped - " |
| 2061 | "reconnect or reload driver.\n", proc, rc); |
| 2062 | return rc; |
| 2063 | } |
| 2064 | |
| 2065 | |
| 2066 | return rc; |
| 2067 | } |
| 2068 | |
| 2069 | |
| 2070 | /* |
| 2071 | * usbvision_set_input() |
| 2072 | * |
| 2073 | * Set the input (saa711x, ...) size x y and other misc input params |
| 2074 | * I've no idea if this parameters are right |
| 2075 | * |
| 2076 | */ |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 2077 | int usbvision_set_input(struct usb_usbvision *usbvision) |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2078 | { |
| 2079 | static const char proc[] = "usbvision_set_input: "; |
| 2080 | int rc; |
| 2081 | unsigned char value[8]; |
| 2082 | unsigned char dvi_yuv_value; |
| 2083 | |
| 2084 | if (!USBVISION_IS_OPERATIONAL(usbvision)) |
| 2085 | return 0; |
| 2086 | |
| 2087 | /* Set input format expected from decoder*/ |
Trent Piepho | c682b3a | 2007-04-14 15:16:26 -0300 | [diff] [blame] | 2088 | if (usbvision_device_data[usbvision->DevModel].Vin_Reg1_override) { |
| 2089 | value[0] = usbvision_device_data[usbvision->DevModel].Vin_Reg1; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2090 | } else if(usbvision_device_data[usbvision->DevModel].Codec == CODEC_SAA7113) { |
| 2091 | /* SAA7113 uses 8 bit output */ |
| 2092 | value[0] = USBVISION_8_422_SYNC; |
| 2093 | } else { |
| 2094 | /* I'm sure only about d2-d0 [010] 16 bit 4:2:2 usin sync pulses |
| 2095 | * as that is how saa7111 is configured */ |
| 2096 | value[0] = USBVISION_16_422_SYNC; |
| 2097 | /* | USBVISION_VSNC_POL | USBVISION_VCLK_POL);*/ |
| 2098 | } |
| 2099 | |
| 2100 | rc = usbvision_write_reg(usbvision, USBVISION_VIN_REG1, value[0]); |
| 2101 | if (rc < 0) { |
| 2102 | printk(KERN_ERR "%sERROR=%d. USBVISION stopped - " |
| 2103 | "reconnect or reload driver.\n", proc, rc); |
| 2104 | return rc; |
| 2105 | } |
| 2106 | |
| 2107 | |
Thierry MERLE | c5f4836 | 2007-05-08 17:22:29 -0300 | [diff] [blame] | 2108 | if (usbvision->tvnormId & V4L2_STD_PAL) { |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2109 | value[0] = 0xC0; |
| 2110 | value[1] = 0x02; //0x02C0 -> 704 Input video line length |
| 2111 | value[2] = 0x20; |
| 2112 | value[3] = 0x01; //0x0120 -> 288 Input video n. of lines |
| 2113 | value[4] = 0x60; |
| 2114 | value[5] = 0x00; //0x0060 -> 96 Input video h offset |
| 2115 | value[6] = 0x16; |
| 2116 | value[7] = 0x00; //0x0016 -> 22 Input video v offset |
Thierry MERLE | c5f4836 | 2007-05-08 17:22:29 -0300 | [diff] [blame] | 2117 | } else if (usbvision->tvnormId & V4L2_STD_SECAM) { |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2118 | value[0] = 0xC0; |
| 2119 | value[1] = 0x02; //0x02C0 -> 704 Input video line length |
| 2120 | value[2] = 0x20; |
| 2121 | value[3] = 0x01; //0x0120 -> 288 Input video n. of lines |
| 2122 | value[4] = 0x01; |
| 2123 | value[5] = 0x00; //0x0001 -> 01 Input video h offset |
| 2124 | value[6] = 0x01; |
| 2125 | value[7] = 0x00; //0x0001 -> 01 Input video v offset |
| 2126 | } else { /* V4L2_STD_NTSC */ |
| 2127 | value[0] = 0xD0; |
| 2128 | value[1] = 0x02; //0x02D0 -> 720 Input video line length |
| 2129 | value[2] = 0xF0; |
| 2130 | value[3] = 0x00; //0x00F0 -> 240 Input video number of lines |
| 2131 | value[4] = 0x50; |
| 2132 | value[5] = 0x00; //0x0050 -> 80 Input video h offset |
| 2133 | value[6] = 0x10; |
| 2134 | value[7] = 0x00; //0x0010 -> 16 Input video v offset |
| 2135 | } |
| 2136 | |
| 2137 | if (usbvision_device_data[usbvision->DevModel].X_Offset >= 0) { |
| 2138 | value[4]=usbvision_device_data[usbvision->DevModel].X_Offset & 0xff; |
| 2139 | value[5]=(usbvision_device_data[usbvision->DevModel].X_Offset & 0x0300) >> 8; |
| 2140 | } |
| 2141 | |
Thierry MERLE | c6243d9 | 2008-01-09 17:34:53 -0300 | [diff] [blame] | 2142 | if (adjust_X_Offset != -1) { |
| 2143 | value[4] = adjust_X_Offset & 0xff; |
| 2144 | value[5] = (adjust_X_Offset & 0x0300) >> 8; |
| 2145 | } |
| 2146 | |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2147 | if (usbvision_device_data[usbvision->DevModel].Y_Offset >= 0) { |
| 2148 | value[6]=usbvision_device_data[usbvision->DevModel].Y_Offset & 0xff; |
| 2149 | value[7]=(usbvision_device_data[usbvision->DevModel].Y_Offset & 0x0300) >> 8; |
| 2150 | } |
| 2151 | |
Thierry MERLE | c6243d9 | 2008-01-09 17:34:53 -0300 | [diff] [blame] | 2152 | if (adjust_Y_Offset != -1) { |
| 2153 | value[6] = adjust_Y_Offset & 0xff; |
| 2154 | value[7] = (adjust_Y_Offset & 0x0300) >> 8; |
| 2155 | } |
| 2156 | |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2157 | rc = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1), |
| 2158 | USBVISION_OP_CODE, /* USBVISION specific code */ |
| 2159 | USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_ENDPOINT, 0, |
| 2160 | (__u16) USBVISION_LXSIZE_I, value, 8, HZ); |
| 2161 | if (rc < 0) { |
| 2162 | printk(KERN_ERR "%sERROR=%d. USBVISION stopped - " |
| 2163 | "reconnect or reload driver.\n", proc, rc); |
| 2164 | return rc; |
| 2165 | } |
| 2166 | |
| 2167 | |
| 2168 | dvi_yuv_value = 0x00; /* U comes after V, Ya comes after U/V, Yb comes after Yb */ |
| 2169 | |
Trent Piepho | c682b3a | 2007-04-14 15:16:26 -0300 | [diff] [blame] | 2170 | if(usbvision_device_data[usbvision->DevModel].Dvi_yuv_override){ |
| 2171 | dvi_yuv_value = usbvision_device_data[usbvision->DevModel].Dvi_yuv; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2172 | } |
| 2173 | else if(usbvision_device_data[usbvision->DevModel].Codec == CODEC_SAA7113) { |
Dwaine Garden | 18d8a45 | 2006-12-04 08:31:11 -0300 | [diff] [blame] | 2174 | /* This changes as the fine sync control changes. Further investigation necessary */ |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2175 | dvi_yuv_value = 0x06; |
| 2176 | } |
| 2177 | |
| 2178 | return (usbvision_write_reg(usbvision, USBVISION_DVI_YUV, dvi_yuv_value)); |
| 2179 | } |
| 2180 | |
| 2181 | |
| 2182 | /* |
| 2183 | * usbvision_set_dram_settings() |
| 2184 | * |
| 2185 | * Set the buffer address needed by the usbvision dram to operate |
| 2186 | * This values has been taken with usbsnoop. |
| 2187 | * |
| 2188 | */ |
| 2189 | |
| 2190 | static int usbvision_set_dram_settings(struct usb_usbvision *usbvision) |
| 2191 | { |
| 2192 | int rc; |
| 2193 | unsigned char value[8]; |
| 2194 | |
| 2195 | if (usbvision->isocMode == ISOC_MODE_COMPRESS) { |
| 2196 | value[0] = 0x42; |
| 2197 | value[1] = 0x71; |
| 2198 | value[2] = 0xff; |
| 2199 | value[3] = 0x00; |
| 2200 | value[4] = 0x98; |
| 2201 | value[5] = 0xe0; |
| 2202 | value[6] = 0x71; |
| 2203 | value[7] = 0xff; |
| 2204 | // UR: 0x0E200-0x3FFFF = 204288 Words (1 Word = 2 Byte) |
| 2205 | // FDL: 0x00000-0x0E099 = 57498 Words |
| 2206 | // VDW: 0x0E3FF-0x3FFFF |
| 2207 | } |
| 2208 | else { |
| 2209 | value[0] = 0x42; |
| 2210 | value[1] = 0x00; |
| 2211 | value[2] = 0xff; |
| 2212 | value[3] = 0x00; |
| 2213 | value[4] = 0x00; |
| 2214 | value[5] = 0x00; |
| 2215 | value[6] = 0x00; |
| 2216 | value[7] = 0xff; |
| 2217 | } |
| 2218 | /* These are the values of the address of the video buffer, |
| 2219 | * they have to be loaded into the USBVISION_DRM_PRM1-8 |
| 2220 | * |
| 2221 | * Start address of video output buffer for read: drm_prm1-2 -> 0x00000 |
| 2222 | * End address of video output buffer for read: drm_prm1-3 -> 0x1ffff |
| 2223 | * Start address of video frame delay buffer: drm_prm1-4 -> 0x20000 |
| 2224 | * Only used in compressed mode |
| 2225 | * End address of video frame delay buffer: drm_prm1-5-6 -> 0x3ffff |
| 2226 | * Only used in compressed mode |
| 2227 | * Start address of video output buffer for write: drm_prm1-7 -> 0x00000 |
| 2228 | * End address of video output buffer for write: drm_prm1-8 -> 0x1ffff |
| 2229 | */ |
| 2230 | |
| 2231 | if (!USBVISION_IS_OPERATIONAL(usbvision)) |
| 2232 | return 0; |
| 2233 | |
| 2234 | rc = usb_control_msg(usbvision->dev, usb_sndctrlpipe(usbvision->dev, 1), |
| 2235 | USBVISION_OP_CODE, /* USBVISION specific code */ |
| 2236 | USB_DIR_OUT | USB_TYPE_VENDOR | |
| 2237 | USB_RECIP_ENDPOINT, 0, |
| 2238 | (__u16) USBVISION_DRM_PRM1, value, 8, HZ); |
| 2239 | |
| 2240 | if (rc < 0) { |
Mauro Carvalho Chehab | be9ed51 | 2009-01-08 09:13:42 -0300 | [diff] [blame] | 2241 | dev_err(&usbvision->dev->dev, "%sERROR=%d\n", __func__, rc); |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2242 | return rc; |
| 2243 | } |
| 2244 | |
| 2245 | /* Restart the video buffer logic */ |
| 2246 | if ((rc = usbvision_write_reg(usbvision, USBVISION_DRM_CONT, USBVISION_RES_UR | |
| 2247 | USBVISION_RES_FDL | USBVISION_RES_VDW)) < 0) |
| 2248 | return rc; |
| 2249 | rc = usbvision_write_reg(usbvision, USBVISION_DRM_CONT, 0x00); |
| 2250 | |
| 2251 | return rc; |
| 2252 | } |
| 2253 | |
| 2254 | /* |
| 2255 | * () |
| 2256 | * |
| 2257 | * Power on the device, enables suspend-resume logic |
| 2258 | * & reset the isoc End-Point |
| 2259 | * |
| 2260 | */ |
| 2261 | |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 2262 | int usbvision_power_on(struct usb_usbvision *usbvision) |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2263 | { |
| 2264 | int errCode = 0; |
| 2265 | |
| 2266 | PDEBUG(DBG_FUNC, ""); |
| 2267 | |
| 2268 | usbvision_write_reg(usbvision, USBVISION_PWR_REG, USBVISION_SSPND_EN); |
| 2269 | usbvision_write_reg(usbvision, USBVISION_PWR_REG, |
| 2270 | USBVISION_SSPND_EN | USBVISION_RES2); |
Thierry MERLE | 38284ba | 2006-12-15 16:46:53 -0300 | [diff] [blame] | 2271 | |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2272 | usbvision_write_reg(usbvision, USBVISION_PWR_REG, |
| 2273 | USBVISION_SSPND_EN | USBVISION_PWR_VID); |
| 2274 | errCode = usbvision_write_reg(usbvision, USBVISION_PWR_REG, |
| 2275 | USBVISION_SSPND_EN | USBVISION_PWR_VID | USBVISION_RES2); |
| 2276 | if (errCode == 1) { |
| 2277 | usbvision->power = 1; |
| 2278 | } |
| 2279 | PDEBUG(DBG_FUNC, "%s: errCode %d", (errCode<0)?"ERROR":"power is on", errCode); |
| 2280 | return errCode; |
| 2281 | } |
| 2282 | |
| 2283 | |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 2284 | /* |
| 2285 | * usbvision timer stuff |
| 2286 | */ |
| 2287 | |
| 2288 | // to call usbvision_power_off from task queue |
Mauro Carvalho Chehab | 67952e8 | 2006-12-10 00:14:21 -0200 | [diff] [blame] | 2289 | static void call_usbvision_power_off(struct work_struct *work) |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 2290 | { |
Thierry MERLE | 1de1bf0 | 2006-12-10 13:31:04 -0300 | [diff] [blame] | 2291 | struct usb_usbvision *usbvision = container_of(work, struct usb_usbvision, powerOffWork); |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 2292 | |
| 2293 | PDEBUG(DBG_FUNC, ""); |
Matthias Kaehlcke | 289d4d2 | 2007-10-24 17:31:15 -0300 | [diff] [blame] | 2294 | if(mutex_lock_interruptible(&usbvision->lock)) { |
| 2295 | return; |
| 2296 | } |
| 2297 | |
| 2298 | |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 2299 | if(usbvision->user == 0) { |
Thierry MERLE | 1ff16c2 | 2007-04-14 16:23:49 -0300 | [diff] [blame] | 2300 | usbvision_i2c_unregister(usbvision); |
Mauro Carvalho Chehab | 67952e8 | 2006-12-10 00:14:21 -0200 | [diff] [blame] | 2301 | |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 2302 | usbvision_power_off(usbvision); |
| 2303 | usbvision->initialized = 0; |
| 2304 | } |
Matthias Kaehlcke | 289d4d2 | 2007-10-24 17:31:15 -0300 | [diff] [blame] | 2305 | mutex_unlock(&usbvision->lock); |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 2306 | } |
| 2307 | |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2308 | static void usbvision_powerOffTimer(unsigned long data) |
| 2309 | { |
| 2310 | struct usb_usbvision *usbvision = (void *) data; |
| 2311 | |
| 2312 | PDEBUG(DBG_FUNC, ""); |
| 2313 | del_timer(&usbvision->powerOffTimer); |
Mauro Carvalho Chehab | 67952e8 | 2006-12-10 00:14:21 -0200 | [diff] [blame] | 2314 | INIT_WORK(&usbvision->powerOffWork, call_usbvision_power_off); |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2315 | (void) schedule_work(&usbvision->powerOffWork); |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2316 | } |
| 2317 | |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 2318 | void usbvision_init_powerOffTimer(struct usb_usbvision *usbvision) |
| 2319 | { |
| 2320 | init_timer(&usbvision->powerOffTimer); |
| 2321 | usbvision->powerOffTimer.data = (long) usbvision; |
| 2322 | usbvision->powerOffTimer.function = usbvision_powerOffTimer; |
| 2323 | } |
| 2324 | |
| 2325 | void usbvision_set_powerOffTimer(struct usb_usbvision *usbvision) |
| 2326 | { |
| 2327 | mod_timer(&usbvision->powerOffTimer, jiffies + USBVISION_POWEROFF_TIME); |
| 2328 | } |
| 2329 | |
| 2330 | void usbvision_reset_powerOffTimer(struct usb_usbvision *usbvision) |
| 2331 | { |
| 2332 | if (timer_pending(&usbvision->powerOffTimer)) { |
| 2333 | del_timer(&usbvision->powerOffTimer); |
| 2334 | } |
| 2335 | } |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2336 | |
| 2337 | /* |
| 2338 | * usbvision_begin_streaming() |
| 2339 | * Sure you have to put bit 7 to 0, if not incoming frames are droped, but no |
| 2340 | * idea about the rest |
| 2341 | */ |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 2342 | int usbvision_begin_streaming(struct usb_usbvision *usbvision) |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2343 | { |
| 2344 | int errCode = 0; |
| 2345 | |
| 2346 | if (usbvision->isocMode == ISOC_MODE_COMPRESS) { |
| 2347 | usbvision_init_compression(usbvision); |
| 2348 | } |
| 2349 | errCode = usbvision_write_reg(usbvision, USBVISION_VIN_REG2, USBVISION_NOHVALID | |
| 2350 | usbvision->Vin_Reg2_Preset); |
| 2351 | return errCode; |
| 2352 | } |
| 2353 | |
| 2354 | /* |
| 2355 | * usbvision_restart_isoc() |
| 2356 | * Not sure yet if touching here PWR_REG make loose the config |
| 2357 | */ |
| 2358 | |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 2359 | int usbvision_restart_isoc(struct usb_usbvision *usbvision) |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2360 | { |
| 2361 | int ret; |
| 2362 | |
| 2363 | if ( |
| 2364 | (ret = |
| 2365 | usbvision_write_reg(usbvision, USBVISION_PWR_REG, |
| 2366 | USBVISION_SSPND_EN | USBVISION_PWR_VID)) < 0) |
| 2367 | return ret; |
| 2368 | if ( |
| 2369 | (ret = |
| 2370 | usbvision_write_reg(usbvision, USBVISION_PWR_REG, |
| 2371 | USBVISION_SSPND_EN | USBVISION_PWR_VID | |
| 2372 | USBVISION_RES2)) < 0) |
| 2373 | return ret; |
| 2374 | if ( |
| 2375 | (ret = |
| 2376 | usbvision_write_reg(usbvision, USBVISION_VIN_REG2, |
| 2377 | USBVISION_KEEP_BLANK | USBVISION_NOHVALID | |
| 2378 | usbvision->Vin_Reg2_Preset)) < 0) return ret; |
| 2379 | |
| 2380 | /* TODO: schedule timeout */ |
Alexey Dobriyan | 70bdd9c | 2006-12-26 07:43:25 -0300 | [diff] [blame] | 2381 | while ((usbvision_read_reg(usbvision, USBVISION_STATUS_REG) & 0x01) != 1); |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2382 | |
| 2383 | return 0; |
| 2384 | } |
| 2385 | |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 2386 | int usbvision_audio_off(struct usb_usbvision *usbvision) |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2387 | { |
| 2388 | if (usbvision_write_reg(usbvision, USBVISION_IOPIN_REG, USBVISION_AUDIO_MUTE) < 0) { |
| 2389 | printk(KERN_ERR "usbvision_audio_off: can't wirte reg\n"); |
| 2390 | return -1; |
| 2391 | } |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2392 | usbvision->AudioMute = 0; |
| 2393 | usbvision->AudioChannel = USBVISION_AUDIO_MUTE; |
| 2394 | return 0; |
| 2395 | } |
| 2396 | |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 2397 | int usbvision_set_audio(struct usb_usbvision *usbvision, int AudioChannel) |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2398 | { |
| 2399 | if (!usbvision->AudioMute) { |
| 2400 | if (usbvision_write_reg(usbvision, USBVISION_IOPIN_REG, AudioChannel) < 0) { |
| 2401 | printk(KERN_ERR "usbvision_set_audio: can't write iopin register for audio switching\n"); |
| 2402 | return -1; |
| 2403 | } |
| 2404 | } |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2405 | usbvision->AudioChannel = AudioChannel; |
| 2406 | return 0; |
| 2407 | } |
| 2408 | |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 2409 | int usbvision_setup(struct usb_usbvision *usbvision,int format) |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2410 | { |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 2411 | usbvision_set_video_format(usbvision, format); |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2412 | usbvision_set_dram_settings(usbvision); |
| 2413 | usbvision_set_compress_params(usbvision); |
| 2414 | usbvision_set_input(usbvision); |
| 2415 | usbvision_set_output(usbvision, MAX_USB_WIDTH, MAX_USB_HEIGHT); |
| 2416 | usbvision_restart_isoc(usbvision); |
Dwaine Garden | 18d8a45 | 2006-12-04 08:31:11 -0300 | [diff] [blame] | 2417 | |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2418 | /* cosas del PCM */ |
| 2419 | return USBVISION_IS_OPERATIONAL(usbvision); |
| 2420 | } |
| 2421 | |
Thierry MERLE | 2a9f8b5 | 2007-02-07 10:14:38 -0300 | [diff] [blame] | 2422 | int usbvision_set_alternate(struct usb_usbvision *dev) |
| 2423 | { |
| 2424 | int errCode, prev_alt = dev->ifaceAlt; |
| 2425 | int i; |
| 2426 | |
| 2427 | dev->ifaceAlt=0; |
| 2428 | for(i=0;i< dev->num_alt; i++) |
| 2429 | if(dev->alt_max_pkt_size[i]>dev->alt_max_pkt_size[dev->ifaceAlt]) |
| 2430 | dev->ifaceAlt=i; |
| 2431 | |
| 2432 | if (dev->ifaceAlt != prev_alt) { |
| 2433 | dev->isocPacketSize = dev->alt_max_pkt_size[dev->ifaceAlt]; |
| 2434 | PDEBUG(DBG_FUNC,"setting alternate %d with wMaxPacketSize=%u", dev->ifaceAlt,dev->isocPacketSize); |
| 2435 | errCode = usb_set_interface(dev->dev, dev->iface, dev->ifaceAlt); |
| 2436 | if (errCode < 0) { |
Mauro Carvalho Chehab | be9ed51 | 2009-01-08 09:13:42 -0300 | [diff] [blame] | 2437 | dev_err(&dev->dev->dev, |
| 2438 | "cannot change alternate number to %d (error=%i)\n", |
| 2439 | dev->ifaceAlt, errCode); |
Thierry MERLE | 2a9f8b5 | 2007-02-07 10:14:38 -0300 | [diff] [blame] | 2440 | return errCode; |
| 2441 | } |
| 2442 | } |
| 2443 | |
| 2444 | PDEBUG(DBG_ISOC, "ISO Packet Length:%d", dev->isocPacketSize); |
| 2445 | |
| 2446 | return 0; |
| 2447 | } |
| 2448 | |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2449 | /* |
| 2450 | * usbvision_init_isoc() |
| 2451 | * |
| 2452 | */ |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 2453 | int usbvision_init_isoc(struct usb_usbvision *usbvision) |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2454 | { |
| 2455 | struct usb_device *dev = usbvision->dev; |
| 2456 | int bufIdx, errCode, regValue; |
Thierry Merle | fe818d1 | 2007-05-27 17:21:17 -0300 | [diff] [blame] | 2457 | int sb_size; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2458 | |
| 2459 | if (!USBVISION_IS_OPERATIONAL(usbvision)) |
| 2460 | return -EFAULT; |
| 2461 | |
Thierry MERLE | f2242ee | 2006-12-04 08:31:14 -0300 | [diff] [blame] | 2462 | usbvision->curFrame = NULL; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2463 | scratch_reset(usbvision); |
| 2464 | |
| 2465 | /* Alternate interface 1 is is the biggest frame size */ |
Thierry MERLE | 2a9f8b5 | 2007-02-07 10:14:38 -0300 | [diff] [blame] | 2466 | errCode = usbvision_set_alternate(usbvision); |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2467 | if (errCode < 0) { |
| 2468 | usbvision->last_error = errCode; |
| 2469 | return -EBUSY; |
| 2470 | } |
Thierry Merle | fe818d1 | 2007-05-27 17:21:17 -0300 | [diff] [blame] | 2471 | sb_size = USBVISION_URB_FRAMES * usbvision->isocPacketSize; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2472 | |
Thierry Merle | fe818d1 | 2007-05-27 17:21:17 -0300 | [diff] [blame] | 2473 | regValue = (16 - usbvision_read_reg(usbvision, |
| 2474 | USBVISION_ALTER_REG)) & 0x0F; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2475 | |
| 2476 | usbvision->usb_bandwidth = regValue >> 1; |
Thierry Merle | fe818d1 | 2007-05-27 17:21:17 -0300 | [diff] [blame] | 2477 | PDEBUG(DBG_ISOC, "USB Bandwidth Usage: %dMbit/Sec", |
| 2478 | usbvision->usb_bandwidth); |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2479 | |
| 2480 | |
| 2481 | |
| 2482 | /* We double buffer the Iso lists */ |
| 2483 | |
| 2484 | for (bufIdx = 0; bufIdx < USBVISION_NUMSBUF; bufIdx++) { |
| 2485 | int j, k; |
| 2486 | struct urb *urb; |
| 2487 | |
Mauro Carvalho Chehab | a1ed551 | 2006-12-09 11:41:59 -0300 | [diff] [blame] | 2488 | urb = usb_alloc_urb(USBVISION_URB_FRAMES, GFP_KERNEL); |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2489 | if (urb == NULL) { |
Mauro Carvalho Chehab | be9ed51 | 2009-01-08 09:13:42 -0300 | [diff] [blame] | 2490 | dev_err(&usbvision->dev->dev, |
| 2491 | "%s: usb_alloc_urb() failed\n", __func__); |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2492 | return -ENOMEM; |
| 2493 | } |
| 2494 | usbvision->sbuf[bufIdx].urb = urb; |
Thierry Merle | fe818d1 | 2007-05-27 17:21:17 -0300 | [diff] [blame] | 2495 | usbvision->sbuf[bufIdx].data = |
Daniel Mack | 997ea58 | 2010-04-12 13:17:25 +0200 | [diff] [blame] | 2496 | usb_alloc_coherent(usbvision->dev, |
| 2497 | sb_size, |
| 2498 | GFP_KERNEL, |
| 2499 | &urb->transfer_dma); |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2500 | urb->dev = dev; |
| 2501 | urb->context = usbvision; |
| 2502 | urb->pipe = usb_rcvisocpipe(dev, usbvision->video_endp); |
Devin Heitmueller | f876897 | 2009-03-22 23:39:12 -0300 | [diff] [blame] | 2503 | urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2504 | urb->interval = 1; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2505 | urb->transfer_buffer = usbvision->sbuf[bufIdx].data; |
| 2506 | urb->complete = usbvision_isocIrq; |
| 2507 | urb->number_of_packets = USBVISION_URB_FRAMES; |
| 2508 | urb->transfer_buffer_length = |
| 2509 | usbvision->isocPacketSize * USBVISION_URB_FRAMES; |
| 2510 | for (j = k = 0; j < USBVISION_URB_FRAMES; j++, |
| 2511 | k += usbvision->isocPacketSize) { |
| 2512 | urb->iso_frame_desc[j].offset = k; |
Thierry Merle | fe818d1 | 2007-05-27 17:21:17 -0300 | [diff] [blame] | 2513 | urb->iso_frame_desc[j].length = |
| 2514 | usbvision->isocPacketSize; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2515 | } |
| 2516 | } |
| 2517 | |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2518 | /* Submit all URBs */ |
| 2519 | for (bufIdx = 0; bufIdx < USBVISION_NUMSBUF; bufIdx++) { |
Thierry Merle | fe818d1 | 2007-05-27 17:21:17 -0300 | [diff] [blame] | 2520 | errCode = usb_submit_urb(usbvision->sbuf[bufIdx].urb, |
| 2521 | GFP_KERNEL); |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2522 | if (errCode) { |
Mauro Carvalho Chehab | be9ed51 | 2009-01-08 09:13:42 -0300 | [diff] [blame] | 2523 | dev_err(&usbvision->dev->dev, |
| 2524 | "%s: usb_submit_urb(%d) failed: error %d\n", |
| 2525 | __func__, bufIdx, errCode); |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2526 | } |
| 2527 | } |
| 2528 | |
Thierry | 5f7fb87 | 2006-12-04 08:31:17 -0300 | [diff] [blame] | 2529 | usbvision->streaming = Stream_Idle; |
Thierry Merle | fe818d1 | 2007-05-27 17:21:17 -0300 | [diff] [blame] | 2530 | PDEBUG(DBG_ISOC, "%s: streaming=1 usbvision->video_endp=$%02x", |
Harvey Harrison | d2db42d | 2008-04-04 20:50:07 -0300 | [diff] [blame] | 2531 | __func__, |
Thierry Merle | fe818d1 | 2007-05-27 17:21:17 -0300 | [diff] [blame] | 2532 | usbvision->video_endp); |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2533 | return 0; |
| 2534 | } |
| 2535 | |
| 2536 | /* |
| 2537 | * usbvision_stop_isoc() |
| 2538 | * |
| 2539 | * This procedure stops streaming and deallocates URBs. Then it |
| 2540 | * activates zero-bandwidth alt. setting of the video interface. |
| 2541 | * |
| 2542 | */ |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 2543 | void usbvision_stop_isoc(struct usb_usbvision *usbvision) |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2544 | { |
| 2545 | int bufIdx, errCode, regValue; |
Thierry Merle | fe818d1 | 2007-05-27 17:21:17 -0300 | [diff] [blame] | 2546 | int sb_size = USBVISION_URB_FRAMES * usbvision->isocPacketSize; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2547 | |
Thierry | 5f7fb87 | 2006-12-04 08:31:17 -0300 | [diff] [blame] | 2548 | if ((usbvision->streaming == Stream_Off) || (usbvision->dev == NULL)) |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2549 | return; |
| 2550 | |
| 2551 | /* Unschedule all of the iso td's */ |
| 2552 | for (bufIdx = 0; bufIdx < USBVISION_NUMSBUF; bufIdx++) { |
| 2553 | usb_kill_urb(usbvision->sbuf[bufIdx].urb); |
Thierry MERLE | 38284ba | 2006-12-15 16:46:53 -0300 | [diff] [blame] | 2554 | if (usbvision->sbuf[bufIdx].data){ |
Daniel Mack | 997ea58 | 2010-04-12 13:17:25 +0200 | [diff] [blame] | 2555 | usb_free_coherent(usbvision->dev, |
| 2556 | sb_size, |
| 2557 | usbvision->sbuf[bufIdx].data, |
| 2558 | usbvision->sbuf[bufIdx].urb->transfer_dma); |
Thierry MERLE | 38284ba | 2006-12-15 16:46:53 -0300 | [diff] [blame] | 2559 | } |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2560 | usb_free_urb(usbvision->sbuf[bufIdx].urb); |
| 2561 | usbvision->sbuf[bufIdx].urb = NULL; |
Dwaine Garden | 18d8a45 | 2006-12-04 08:31:11 -0300 | [diff] [blame] | 2562 | } |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2563 | |
Harvey Harrison | d2db42d | 2008-04-04 20:50:07 -0300 | [diff] [blame] | 2564 | PDEBUG(DBG_ISOC, "%s: streaming=Stream_Off\n", __func__); |
Thierry MERLE | f2242ee | 2006-12-04 08:31:14 -0300 | [diff] [blame] | 2565 | usbvision->streaming = Stream_Off; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2566 | |
| 2567 | if (!usbvision->remove_pending) { |
| 2568 | |
| 2569 | /* Set packet size to 0 */ |
Thierry MERLE | 2a9f8b5 | 2007-02-07 10:14:38 -0300 | [diff] [blame] | 2570 | usbvision->ifaceAlt=0; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2571 | errCode = usb_set_interface(usbvision->dev, usbvision->iface, |
Thierry MERLE | 2a9f8b5 | 2007-02-07 10:14:38 -0300 | [diff] [blame] | 2572 | usbvision->ifaceAlt); |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2573 | if (errCode < 0) { |
Mauro Carvalho Chehab | be9ed51 | 2009-01-08 09:13:42 -0300 | [diff] [blame] | 2574 | dev_err(&usbvision->dev->dev, |
| 2575 | "%s: usb_set_interface() failed: error %d\n", |
| 2576 | __func__, errCode); |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2577 | usbvision->last_error = errCode; |
| 2578 | } |
Thierry Merle | fe818d1 | 2007-05-27 17:21:17 -0300 | [diff] [blame] | 2579 | regValue = (16-usbvision_read_reg(usbvision, USBVISION_ALTER_REG)) & 0x0F; |
| 2580 | usbvision->isocPacketSize = |
| 2581 | (regValue == 0) ? 0 : (regValue * 64) - 1; |
| 2582 | PDEBUG(DBG_ISOC, "ISO Packet Length:%d", |
| 2583 | usbvision->isocPacketSize); |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2584 | |
| 2585 | usbvision->usb_bandwidth = regValue >> 1; |
Thierry Merle | fe818d1 | 2007-05-27 17:21:17 -0300 | [diff] [blame] | 2586 | PDEBUG(DBG_ISOC, "USB Bandwidth Usage: %dMbit/Sec", |
| 2587 | usbvision->usb_bandwidth); |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2588 | } |
| 2589 | } |
| 2590 | |
Thierry MERLE | 483dfdb | 2006-12-04 08:31:45 -0300 | [diff] [blame] | 2591 | int usbvision_muxsel(struct usb_usbvision *usbvision, int channel) |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2592 | { |
Thierry MERLE | 66a1787 | 2007-06-26 16:35:30 -0300 | [diff] [blame] | 2593 | /* inputs #0 and #3 are constant for every SAA711x. */ |
| 2594 | /* inputs #1 and #2 are variable for SAA7111 and SAA7113 */ |
| 2595 | int mode[4]= {SAA7115_COMPOSITE0, 0, 0, SAA7115_COMPOSITE3}; |
Dwaine Garden | 18d8a45 | 2006-12-04 08:31:11 -0300 | [diff] [blame] | 2596 | int audio[]= {1, 0, 0, 0}; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2597 | //channel 0 is TV with audiochannel 1 (tuner mono) |
| 2598 | //channel 1 is Composite with audio channel 0 (line in) |
| 2599 | //channel 2 is S-Video with audio channel 0 (line in) |
| 2600 | //channel 3 is additional video inputs to the device with audio channel 0 (line in) |
| 2601 | |
| 2602 | RESTRICT_TO_RANGE(channel, 0, usbvision->video_inputs); |
Thierry MERLE | f2242ee | 2006-12-04 08:31:14 -0300 | [diff] [blame] | 2603 | usbvision->ctl_input = channel; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2604 | |
| 2605 | // set the new channel |
| 2606 | // Regular USB TV Tuners -> channel: 0 = Television, 1 = Composite, 2 = S-Video |
Dwaine Garden | 18d8a45 | 2006-12-04 08:31:11 -0300 | [diff] [blame] | 2607 | // Four video input devices -> channel: 0 = Chan White, 1 = Chan Green, 2 = Chan Yellow, 3 = Chan Red |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2608 | |
| 2609 | switch (usbvision_device_data[usbvision->DevModel].Codec) { |
| 2610 | case CODEC_SAA7113: |
Thierry MERLE | 66a1787 | 2007-06-26 16:35:30 -0300 | [diff] [blame] | 2611 | mode[1] = SAA7115_COMPOSITE2; |
| 2612 | if (SwitchSVideoInput) { |
| 2613 | /* To handle problems with S-Video Input for |
| 2614 | * some devices. Use SwitchSVideoInput |
| 2615 | * parameter when loading the module.*/ |
| 2616 | mode[2] = SAA7115_COMPOSITE1; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2617 | } |
| 2618 | else { |
Thierry MERLE | 66a1787 | 2007-06-26 16:35:30 -0300 | [diff] [blame] | 2619 | mode[2] = SAA7115_SVIDEO1; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2620 | } |
| 2621 | break; |
| 2622 | case CODEC_SAA7111: |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2623 | default: |
Thierry MERLE | 66a1787 | 2007-06-26 16:35:30 -0300 | [diff] [blame] | 2624 | /* modes for saa7111 */ |
| 2625 | mode[1] = SAA7115_COMPOSITE1; |
| 2626 | mode[2] = SAA7115_SVIDEO1; |
| 2627 | break; |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2628 | } |
Hans Verkuil | 5325b42 | 2009-04-02 11:26:22 -0300 | [diff] [blame] | 2629 | call_all(usbvision, video, s_routing, mode[channel], 0, 0); |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2630 | usbvision_set_audio(usbvision, audio[channel]); |
| 2631 | return 0; |
| 2632 | } |
| 2633 | |
Mauro Carvalho Chehab | 781aa1d | 2006-12-04 08:30:53 -0300 | [diff] [blame] | 2634 | /* |
| 2635 | * Overrides for Emacs so that we follow Linus's tabbing style. |
| 2636 | * --------------------------------------------------------------------------- |
| 2637 | * Local variables: |
| 2638 | * c-basic-offset: 8 |
| 2639 | * End: |
| 2640 | */ |