Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Zoran ZR36060 basic configuration functions |
| 3 | * |
| 4 | * Copyright (C) 2002 Laurent Pinchart <laurent.pinchart@skynet.be> |
| 5 | * |
| 6 | * $Id: zr36060.c,v 1.1.2.22 2003/05/06 09:35:36 rbultje Exp $ |
| 7 | * |
| 8 | * ------------------------------------------------------------------------ |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or modify |
| 11 | * it under the terms of the GNU General Public License as published by |
| 12 | * the Free Software Foundation; either version 2 of the License, or |
| 13 | * (at your option) any later version. |
| 14 | * |
| 15 | * This program is distributed in the hope that it will be useful, |
| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 18 | * GNU General Public License for more details. |
| 19 | * |
| 20 | * You should have received a copy of the GNU General Public License |
| 21 | * along with this program; if not, write to the Free Software |
| 22 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 23 | * |
| 24 | * ------------------------------------------------------------------------ |
| 25 | */ |
| 26 | |
| 27 | #define ZR060_VERSION "v0.7" |
| 28 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 29 | #include <linux/module.h> |
| 30 | #include <linux/init.h> |
| 31 | #include <linux/slab.h> |
| 32 | #include <linux/delay.h> |
| 33 | |
| 34 | #include <linux/types.h> |
| 35 | #include <linux/wait.h> |
| 36 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 37 | /* I/O commands, error codes */ |
Michal Piotrowski | 5634f2e | 2007-08-21 12:34:36 -0300 | [diff] [blame] | 38 | #include <asm/io.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 39 | |
| 40 | /* headerfile of this module */ |
Michal Piotrowski | 5634f2e | 2007-08-21 12:34:36 -0300 | [diff] [blame] | 41 | #include "zr36060.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 42 | |
| 43 | /* codec io API */ |
Michal Piotrowski | 5634f2e | 2007-08-21 12:34:36 -0300 | [diff] [blame] | 44 | #include "videocodec.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 45 | |
| 46 | /* it doesn't make sense to have more than 20 or so, |
| 47 | just to prevent some unwanted loops */ |
| 48 | #define MAX_CODECS 20 |
| 49 | |
| 50 | /* amount of chips attached via this driver */ |
Douglas Schilling Landgraf | ff699e6 | 2008-04-22 14:41:48 -0300 | [diff] [blame] | 51 | static int zr36060_codecs; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 52 | |
Douglas Schilling Landgraf | ff699e6 | 2008-04-22 14:41:48 -0300 | [diff] [blame] | 53 | static int low_bitrate; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 54 | module_param(low_bitrate, bool, 0); |
| 55 | MODULE_PARM_DESC(low_bitrate, "Buz compatibility option, halves bitrate"); |
| 56 | |
| 57 | /* debugging is available via module parameter */ |
Douglas Schilling Landgraf | ff699e6 | 2008-04-22 14:41:48 -0300 | [diff] [blame] | 58 | static int debug; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 59 | module_param(debug, int, 0); |
| 60 | MODULE_PARM_DESC(debug, "Debug level (0-4)"); |
| 61 | |
| 62 | #define dprintk(num, format, args...) \ |
| 63 | do { \ |
| 64 | if (debug >= num) \ |
| 65 | printk(format, ##args); \ |
| 66 | } while (0) |
| 67 | |
| 68 | /* ========================================================================= |
| 69 | Local hardware I/O functions: |
| 70 | |
| 71 | read/write via codec layer (registers are located in the master device) |
| 72 | ========================================================================= */ |
| 73 | |
| 74 | /* read and write functions */ |
| 75 | static u8 |
| 76 | zr36060_read (struct zr36060 *ptr, |
| 77 | u16 reg) |
| 78 | { |
| 79 | u8 value = 0; |
| 80 | |
| 81 | // just in case something is wrong... |
| 82 | if (ptr->codec->master_data->readreg) |
| 83 | value = (ptr->codec->master_data->readreg(ptr->codec, |
| 84 | reg)) & 0xff; |
| 85 | else |
| 86 | dprintk(1, |
| 87 | KERN_ERR "%s: invalid I/O setup, nothing read!\n", |
| 88 | ptr->name); |
| 89 | |
| 90 | //dprintk(4, "%s: reading from 0x%04x: %02x\n",ptr->name,reg,value); |
| 91 | |
| 92 | return value; |
| 93 | } |
| 94 | |
| 95 | static void |
| 96 | zr36060_write(struct zr36060 *ptr, |
| 97 | u16 reg, |
| 98 | u8 value) |
| 99 | { |
| 100 | //dprintk(4, "%s: writing 0x%02x to 0x%04x\n",ptr->name,value,reg); |
| 101 | dprintk(4, "0x%02x @0x%04x\n", value, reg); |
| 102 | |
| 103 | // just in case something is wrong... |
| 104 | if (ptr->codec->master_data->writereg) |
| 105 | ptr->codec->master_data->writereg(ptr->codec, reg, value); |
| 106 | else |
| 107 | dprintk(1, |
| 108 | KERN_ERR |
| 109 | "%s: invalid I/O setup, nothing written!\n", |
| 110 | ptr->name); |
| 111 | } |
| 112 | |
| 113 | /* ========================================================================= |
| 114 | Local helper function: |
| 115 | |
| 116 | status read |
| 117 | ========================================================================= */ |
| 118 | |
| 119 | /* status is kept in datastructure */ |
| 120 | static u8 |
| 121 | zr36060_read_status (struct zr36060 *ptr) |
| 122 | { |
| 123 | ptr->status = zr36060_read(ptr, ZR060_CFSR); |
| 124 | |
| 125 | zr36060_read(ptr, 0); |
| 126 | return ptr->status; |
| 127 | } |
| 128 | |
| 129 | /* ========================================================================= |
| 130 | Local helper function: |
| 131 | |
| 132 | scale factor read |
| 133 | ========================================================================= */ |
| 134 | |
| 135 | /* scale factor is kept in datastructure */ |
| 136 | static u16 |
| 137 | zr36060_read_scalefactor (struct zr36060 *ptr) |
| 138 | { |
| 139 | ptr->scalefact = (zr36060_read(ptr, ZR060_SF_HI) << 8) | |
| 140 | (zr36060_read(ptr, ZR060_SF_LO) & 0xFF); |
| 141 | |
| 142 | /* leave 0 selected for an eventually GO from master */ |
| 143 | zr36060_read(ptr, 0); |
| 144 | return ptr->scalefact; |
| 145 | } |
| 146 | |
| 147 | /* ========================================================================= |
| 148 | Local helper function: |
| 149 | |
| 150 | wait if codec is ready to proceed (end of processing) or time is over |
| 151 | ========================================================================= */ |
| 152 | |
| 153 | static void |
| 154 | zr36060_wait_end (struct zr36060 *ptr) |
| 155 | { |
| 156 | int i = 0; |
| 157 | |
| 158 | while (zr36060_read_status(ptr) & ZR060_CFSR_Busy) { |
| 159 | udelay(1); |
Alexey Dobriyan | 8a59822 | 2006-03-07 22:20:23 -0300 | [diff] [blame] | 160 | if (i++ > 200000) { // 200ms, there is for sure something wrong!!! |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 161 | dprintk(1, |
Joe Perches | c84e603 | 2008-02-03 17:18:59 +0200 | [diff] [blame] | 162 | "%s: timeout at wait_end (last status: 0x%02x)\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 163 | ptr->name, ptr->status); |
| 164 | break; |
| 165 | } |
| 166 | } |
| 167 | } |
| 168 | |
| 169 | /* ========================================================================= |
| 170 | Local helper function: |
| 171 | |
Mauro Carvalho Chehab | d56410e | 2006-03-25 09:19:53 -0300 | [diff] [blame] | 172 | basic test of "connectivity", writes/reads to/from memory the SOF marker |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 173 | ========================================================================= */ |
| 174 | |
| 175 | static int |
| 176 | zr36060_basic_test (struct zr36060 *ptr) |
| 177 | { |
| 178 | if ((zr36060_read(ptr, ZR060_IDR_DEV) != 0x33) && |
| 179 | (zr36060_read(ptr, ZR060_IDR_REV) != 0x01)) { |
| 180 | dprintk(1, |
| 181 | KERN_ERR |
| 182 | "%s: attach failed, can't connect to jpeg processor!\n", |
| 183 | ptr->name); |
| 184 | return -ENXIO; |
| 185 | } |
| 186 | |
| 187 | zr36060_wait_end(ptr); |
| 188 | if (ptr->status & ZR060_CFSR_Busy) { |
| 189 | dprintk(1, |
| 190 | KERN_ERR |
| 191 | "%s: attach failed, jpeg processor failed (end flag)!\n", |
| 192 | ptr->name); |
| 193 | return -EBUSY; |
| 194 | } |
| 195 | |
| 196 | return 0; /* looks good! */ |
| 197 | } |
| 198 | |
| 199 | /* ========================================================================= |
| 200 | Local helper function: |
| 201 | |
| 202 | simple loop for pushing the init datasets |
| 203 | ========================================================================= */ |
| 204 | |
| 205 | static int |
| 206 | zr36060_pushit (struct zr36060 *ptr, |
Mauro Carvalho Chehab | d56410e | 2006-03-25 09:19:53 -0300 | [diff] [blame] | 207 | u16 startreg, |
| 208 | u16 len, |
| 209 | const char *data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 210 | { |
| 211 | int i = 0; |
| 212 | |
| 213 | dprintk(4, "%s: write data block to 0x%04x (len=%d)\n", ptr->name, |
| 214 | startreg, len); |
| 215 | while (i < len) { |
| 216 | zr36060_write(ptr, startreg++, data[i++]); |
| 217 | } |
| 218 | |
| 219 | return i; |
| 220 | } |
| 221 | |
| 222 | /* ========================================================================= |
| 223 | Basic datasets: |
| 224 | |
| 225 | jpeg baseline setup data (you find it on lots places in internet, or just |
| 226 | extract it from any regular .jpg image...) |
| 227 | |
| 228 | Could be variable, but until it's not needed it they are just fixed to save |
| 229 | memory. Otherwise expand zr36060 structure with arrays, push the values to |
Uwe Kleine-König | 421f91d | 2010-06-11 12:17:00 +0200 | [diff] [blame] | 230 | it and initialize from there, as e.g. the linux zr36057/60 driver does it. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 231 | ========================================================================= */ |
| 232 | |
| 233 | static const char zr36060_dqt[0x86] = { |
| 234 | 0xff, 0xdb, //Marker: DQT |
| 235 | 0x00, 0x84, //Length: 2*65+2 |
| 236 | 0x00, //Pq,Tq first table |
| 237 | 0x10, 0x0b, 0x0c, 0x0e, 0x0c, 0x0a, 0x10, 0x0e, |
| 238 | 0x0d, 0x0e, 0x12, 0x11, 0x10, 0x13, 0x18, 0x28, |
| 239 | 0x1a, 0x18, 0x16, 0x16, 0x18, 0x31, 0x23, 0x25, |
| 240 | 0x1d, 0x28, 0x3a, 0x33, 0x3d, 0x3c, 0x39, 0x33, |
| 241 | 0x38, 0x37, 0x40, 0x48, 0x5c, 0x4e, 0x40, 0x44, |
| 242 | 0x57, 0x45, 0x37, 0x38, 0x50, 0x6d, 0x51, 0x57, |
| 243 | 0x5f, 0x62, 0x67, 0x68, 0x67, 0x3e, 0x4d, 0x71, |
| 244 | 0x79, 0x70, 0x64, 0x78, 0x5c, 0x65, 0x67, 0x63, |
| 245 | 0x01, //Pq,Tq second table |
| 246 | 0x11, 0x12, 0x12, 0x18, 0x15, 0x18, 0x2f, 0x1a, |
| 247 | 0x1a, 0x2f, 0x63, 0x42, 0x38, 0x42, 0x63, 0x63, |
| 248 | 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, |
| 249 | 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, |
| 250 | 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, |
| 251 | 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, |
| 252 | 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, |
| 253 | 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63 |
| 254 | }; |
| 255 | |
| 256 | static const char zr36060_dht[0x1a4] = { |
| 257 | 0xff, 0xc4, //Marker: DHT |
| 258 | 0x01, 0xa2, //Length: 2*AC, 2*DC |
| 259 | 0x00, //DC first table |
| 260 | 0x00, 0x01, 0x05, 0x01, 0x01, 0x01, 0x01, 0x01, |
| 261 | 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, |
| 262 | 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, |
| 263 | 0x01, //DC second table |
| 264 | 0x00, 0x03, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, |
| 265 | 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, |
| 266 | 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, |
| 267 | 0x10, //AC first table |
| 268 | 0x00, 0x02, 0x01, 0x03, 0x03, 0x02, 0x04, 0x03, |
| 269 | 0x05, 0x05, 0x04, 0x04, 0x00, 0x00, |
| 270 | 0x01, 0x7D, 0x01, 0x02, 0x03, 0x00, 0x04, 0x11, |
| 271 | 0x05, 0x12, 0x21, 0x31, 0x41, 0x06, 0x13, 0x51, 0x61, |
| 272 | 0x07, 0x22, 0x71, 0x14, 0x32, 0x81, 0x91, 0xA1, |
| 273 | 0x08, 0x23, 0x42, 0xB1, 0xC1, 0x15, 0x52, 0xD1, 0xF0, 0x24, |
| 274 | 0x33, 0x62, 0x72, 0x82, 0x09, 0x0A, 0x16, 0x17, |
| 275 | 0x18, 0x19, 0x1A, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x34, |
| 276 | 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x43, 0x44, |
| 277 | 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x53, 0x54, 0x55, 0x56, |
| 278 | 0x57, 0x58, 0x59, 0x5A, 0x63, 0x64, 0x65, 0x66, |
| 279 | 0x67, 0x68, 0x69, 0x6A, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, |
| 280 | 0x79, 0x7A, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, |
| 281 | 0x89, 0x8A, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, |
| 282 | 0x9A, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8, |
| 283 | 0xA9, 0xAA, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, |
| 284 | 0xBA, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, |
| 285 | 0xC9, 0xCA, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9, |
| 286 | 0xDA, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, |
| 287 | 0xE8, 0xE9, 0xEA, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, |
| 288 | 0xF8, 0xF9, 0xFA, |
| 289 | 0x11, //AC second table |
| 290 | 0x00, 0x02, 0x01, 0x02, 0x04, 0x04, 0x03, 0x04, |
| 291 | 0x07, 0x05, 0x04, 0x04, 0x00, 0x01, |
| 292 | 0x02, 0x77, 0x00, 0x01, 0x02, 0x03, 0x11, 0x04, |
| 293 | 0x05, 0x21, 0x31, 0x06, 0x12, 0x41, 0x51, 0x07, 0x61, 0x71, |
| 294 | 0x13, 0x22, 0x32, 0x81, 0x08, 0x14, 0x42, 0x91, |
| 295 | 0xA1, 0xB1, 0xC1, 0x09, 0x23, 0x33, 0x52, 0xF0, 0x15, 0x62, |
| 296 | 0x72, 0xD1, 0x0A, 0x16, 0x24, 0x34, 0xE1, 0x25, |
| 297 | 0xF1, 0x17, 0x18, 0x19, 0x1A, 0x26, 0x27, 0x28, 0x29, 0x2A, |
| 298 | 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x43, 0x44, |
| 299 | 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x53, 0x54, 0x55, 0x56, |
| 300 | 0x57, 0x58, 0x59, 0x5A, 0x63, 0x64, 0x65, 0x66, |
| 301 | 0x67, 0x68, 0x69, 0x6A, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, |
| 302 | 0x79, 0x7A, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, |
| 303 | 0x88, 0x89, 0x8A, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, |
| 304 | 0x99, 0x9A, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, |
| 305 | 0xA8, 0xA9, 0xAA, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, |
| 306 | 0xB9, 0xBA, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, |
| 307 | 0xC8, 0xC9, 0xCA, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, |
| 308 | 0xD9, 0xDA, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, |
| 309 | 0xE8, 0xE9, 0xEA, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, 0xF8, |
| 310 | 0xF9, 0xFA |
| 311 | }; |
| 312 | |
| 313 | /* jpeg baseline setup, this is just fixed in this driver (YUV pictures) */ |
| 314 | #define NO_OF_COMPONENTS 0x3 //Y,U,V |
| 315 | #define BASELINE_PRECISION 0x8 //MCU size (?) |
| 316 | static const char zr36060_tq[8] = { 0, 1, 1, 0, 0, 0, 0, 0 }; //table idx's QT |
| 317 | static const char zr36060_td[8] = { 0, 1, 1, 0, 0, 0, 0, 0 }; //table idx's DC |
| 318 | static const char zr36060_ta[8] = { 0, 1, 1, 0, 0, 0, 0, 0 }; //table idx's AC |
| 319 | |
| 320 | /* horizontal 422 decimation setup (maybe we support 411 or so later, too) */ |
| 321 | static const char zr36060_decimation_h[8] = { 2, 1, 1, 0, 0, 0, 0, 0 }; |
| 322 | static const char zr36060_decimation_v[8] = { 1, 1, 1, 0, 0, 0, 0, 0 }; |
| 323 | |
| 324 | /* ========================================================================= |
| 325 | Local helper functions: |
| 326 | |
| 327 | calculation and setup of parameter-dependent JPEG baseline segments |
| 328 | (needed for compression only) |
| 329 | ========================================================================= */ |
| 330 | |
| 331 | /* ------------------------------------------------------------------------- */ |
| 332 | |
| 333 | /* SOF (start of frame) segment depends on width, height and sampling ratio |
Mauro Carvalho Chehab | d56410e | 2006-03-25 09:19:53 -0300 | [diff] [blame] | 334 | of each color component */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 335 | |
| 336 | static int |
| 337 | zr36060_set_sof (struct zr36060 *ptr) |
| 338 | { |
| 339 | char sof_data[34]; // max. size of register set |
| 340 | int i; |
| 341 | |
| 342 | dprintk(3, "%s: write SOF (%dx%d, %d components)\n", ptr->name, |
| 343 | ptr->width, ptr->height, NO_OF_COMPONENTS); |
| 344 | sof_data[0] = 0xff; |
| 345 | sof_data[1] = 0xc0; |
| 346 | sof_data[2] = 0x00; |
| 347 | sof_data[3] = (3 * NO_OF_COMPONENTS) + 8; |
| 348 | sof_data[4] = BASELINE_PRECISION; // only '8' possible with zr36060 |
| 349 | sof_data[5] = (ptr->height) >> 8; |
| 350 | sof_data[6] = (ptr->height) & 0xff; |
| 351 | sof_data[7] = (ptr->width) >> 8; |
| 352 | sof_data[8] = (ptr->width) & 0xff; |
| 353 | sof_data[9] = NO_OF_COMPONENTS; |
| 354 | for (i = 0; i < NO_OF_COMPONENTS; i++) { |
| 355 | sof_data[10 + (i * 3)] = i; // index identifier |
| 356 | sof_data[11 + (i * 3)] = (ptr->h_samp_ratio[i] << 4) | |
| 357 | (ptr->v_samp_ratio[i]); // sampling ratios |
| 358 | sof_data[12 + (i * 3)] = zr36060_tq[i]; // Q table selection |
| 359 | } |
| 360 | return zr36060_pushit(ptr, ZR060_SOF_IDX, |
| 361 | (3 * NO_OF_COMPONENTS) + 10, sof_data); |
| 362 | } |
| 363 | |
| 364 | /* ------------------------------------------------------------------------- */ |
| 365 | |
Mauro Carvalho Chehab | d56410e | 2006-03-25 09:19:53 -0300 | [diff] [blame] | 366 | /* SOS (start of scan) segment depends on the used scan components |
| 367 | of each color component */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 368 | |
| 369 | static int |
| 370 | zr36060_set_sos (struct zr36060 *ptr) |
| 371 | { |
| 372 | char sos_data[16]; // max. size of register set |
| 373 | int i; |
| 374 | |
| 375 | dprintk(3, "%s: write SOS\n", ptr->name); |
| 376 | sos_data[0] = 0xff; |
| 377 | sos_data[1] = 0xda; |
| 378 | sos_data[2] = 0x00; |
| 379 | sos_data[3] = 2 + 1 + (2 * NO_OF_COMPONENTS) + 3; |
| 380 | sos_data[4] = NO_OF_COMPONENTS; |
| 381 | for (i = 0; i < NO_OF_COMPONENTS; i++) { |
| 382 | sos_data[5 + (i * 2)] = i; // index |
| 383 | sos_data[6 + (i * 2)] = (zr36060_td[i] << 4) | |
Mauro Carvalho Chehab | d56410e | 2006-03-25 09:19:53 -0300 | [diff] [blame] | 384 | zr36060_ta[i]; // AC/DC tbl.sel. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 385 | } |
| 386 | sos_data[2 + 1 + (2 * NO_OF_COMPONENTS) + 2] = 00; // scan start |
| 387 | sos_data[2 + 1 + (2 * NO_OF_COMPONENTS) + 3] = 0x3f; |
| 388 | sos_data[2 + 1 + (2 * NO_OF_COMPONENTS) + 4] = 00; |
| 389 | return zr36060_pushit(ptr, ZR060_SOS_IDX, |
| 390 | 4 + 1 + (2 * NO_OF_COMPONENTS) + 3, |
| 391 | sos_data); |
| 392 | } |
| 393 | |
| 394 | /* ------------------------------------------------------------------------- */ |
| 395 | |
| 396 | /* DRI (define restart interval) */ |
| 397 | |
| 398 | static int |
| 399 | zr36060_set_dri (struct zr36060 *ptr) |
| 400 | { |
| 401 | char dri_data[6]; // max. size of register set |
| 402 | |
| 403 | dprintk(3, "%s: write DRI\n", ptr->name); |
| 404 | dri_data[0] = 0xff; |
| 405 | dri_data[1] = 0xdd; |
| 406 | dri_data[2] = 0x00; |
| 407 | dri_data[3] = 0x04; |
| 408 | dri_data[4] = (ptr->dri) >> 8; |
| 409 | dri_data[5] = (ptr->dri) & 0xff; |
| 410 | return zr36060_pushit(ptr, ZR060_DRI_IDX, 6, dri_data); |
| 411 | } |
| 412 | |
| 413 | /* ========================================================================= |
| 414 | Setup function: |
| 415 | |
| 416 | Setup compression/decompression of Zoran's JPEG processor |
| 417 | ( see also zoran 36060 manual ) |
| 418 | |
| 419 | ... sorry for the spaghetti code ... |
| 420 | ========================================================================= */ |
| 421 | static void |
| 422 | zr36060_init (struct zr36060 *ptr) |
| 423 | { |
| 424 | int sum = 0; |
| 425 | long bitcnt, tmp; |
| 426 | |
| 427 | if (ptr->mode == CODEC_DO_COMPRESSION) { |
| 428 | dprintk(2, "%s: COMPRESSION SETUP\n", ptr->name); |
| 429 | |
| 430 | zr36060_write(ptr, ZR060_LOAD, ZR060_LOAD_SyncRst); |
| 431 | |
| 432 | /* 060 communicates with 067 in master mode */ |
| 433 | zr36060_write(ptr, ZR060_CIR, ZR060_CIR_CodeMstr); |
| 434 | |
| 435 | /* Compression with or without variable scale factor */ |
| 436 | /*FIXME: What about ptr->bitrate_ctrl? */ |
| 437 | zr36060_write(ptr, ZR060_CMR, |
| 438 | ZR060_CMR_Comp | ZR060_CMR_Pass2 | |
| 439 | ZR060_CMR_BRB); |
| 440 | |
| 441 | /* Must be zero */ |
| 442 | zr36060_write(ptr, ZR060_MBZ, 0x00); |
| 443 | zr36060_write(ptr, ZR060_TCR_HI, 0x00); |
| 444 | zr36060_write(ptr, ZR060_TCR_LO, 0x00); |
| 445 | |
| 446 | /* Disable all IRQs - no DataErr means autoreset */ |
| 447 | zr36060_write(ptr, ZR060_IMR, 0); |
| 448 | |
| 449 | /* volume control settings */ |
| 450 | zr36060_write(ptr, ZR060_SF_HI, ptr->scalefact >> 8); |
| 451 | zr36060_write(ptr, ZR060_SF_LO, ptr->scalefact & 0xff); |
| 452 | |
| 453 | zr36060_write(ptr, ZR060_AF_HI, 0xff); |
| 454 | zr36060_write(ptr, ZR060_AF_M, 0xff); |
| 455 | zr36060_write(ptr, ZR060_AF_LO, 0xff); |
| 456 | |
| 457 | /* setup the variable jpeg tables */ |
| 458 | sum += zr36060_set_sof(ptr); |
| 459 | sum += zr36060_set_sos(ptr); |
| 460 | sum += zr36060_set_dri(ptr); |
| 461 | |
| 462 | /* setup the fixed jpeg tables - maybe variable, though - |
| 463 | * (see table init section above) */ |
| 464 | sum += |
| 465 | zr36060_pushit(ptr, ZR060_DQT_IDX, sizeof(zr36060_dqt), |
| 466 | zr36060_dqt); |
| 467 | sum += |
| 468 | zr36060_pushit(ptr, ZR060_DHT_IDX, sizeof(zr36060_dht), |
| 469 | zr36060_dht); |
| 470 | zr36060_write(ptr, ZR060_APP_IDX, 0xff); |
| 471 | zr36060_write(ptr, ZR060_APP_IDX + 1, 0xe0 + ptr->app.appn); |
| 472 | zr36060_write(ptr, ZR060_APP_IDX + 2, 0x00); |
| 473 | zr36060_write(ptr, ZR060_APP_IDX + 3, ptr->app.len + 2); |
| 474 | sum += zr36060_pushit(ptr, ZR060_APP_IDX + 4, 60, |
| 475 | ptr->app.data) + 4; |
| 476 | zr36060_write(ptr, ZR060_COM_IDX, 0xff); |
| 477 | zr36060_write(ptr, ZR060_COM_IDX + 1, 0xfe); |
| 478 | zr36060_write(ptr, ZR060_COM_IDX + 2, 0x00); |
| 479 | zr36060_write(ptr, ZR060_COM_IDX + 3, ptr->com.len + 2); |
| 480 | sum += zr36060_pushit(ptr, ZR060_COM_IDX + 4, 60, |
| 481 | ptr->com.data) + 4; |
| 482 | |
| 483 | /* setup misc. data for compression (target code sizes) */ |
| 484 | |
| 485 | /* size of compressed code to reach without header data */ |
| 486 | sum = ptr->real_code_vol - sum; |
| 487 | bitcnt = sum << 3; /* need the size in bits */ |
| 488 | |
| 489 | tmp = bitcnt >> 16; |
| 490 | dprintk(3, |
| 491 | "%s: code: csize=%d, tot=%d, bit=%ld, highbits=%ld\n", |
| 492 | ptr->name, sum, ptr->real_code_vol, bitcnt, tmp); |
| 493 | zr36060_write(ptr, ZR060_TCV_NET_HI, tmp >> 8); |
| 494 | zr36060_write(ptr, ZR060_TCV_NET_MH, tmp & 0xff); |
| 495 | tmp = bitcnt & 0xffff; |
| 496 | zr36060_write(ptr, ZR060_TCV_NET_ML, tmp >> 8); |
| 497 | zr36060_write(ptr, ZR060_TCV_NET_LO, tmp & 0xff); |
| 498 | |
| 499 | bitcnt -= bitcnt >> 7; // bits without stuffing |
| 500 | bitcnt -= ((bitcnt * 5) >> 6); // bits without eob |
| 501 | |
| 502 | tmp = bitcnt >> 16; |
| 503 | dprintk(3, "%s: code: nettobit=%ld, highnettobits=%ld\n", |
| 504 | ptr->name, bitcnt, tmp); |
| 505 | zr36060_write(ptr, ZR060_TCV_DATA_HI, tmp >> 8); |
| 506 | zr36060_write(ptr, ZR060_TCV_DATA_MH, tmp & 0xff); |
| 507 | tmp = bitcnt & 0xffff; |
| 508 | zr36060_write(ptr, ZR060_TCV_DATA_ML, tmp >> 8); |
| 509 | zr36060_write(ptr, ZR060_TCV_DATA_LO, tmp & 0xff); |
| 510 | |
| 511 | /* JPEG markers to be included in the compressed stream */ |
| 512 | zr36060_write(ptr, ZR060_MER, |
| 513 | ZR060_MER_DQT | ZR060_MER_DHT | |
| 514 | ((ptr->com.len > 0) ? ZR060_MER_Com : 0) | |
| 515 | ((ptr->app.len > 0) ? ZR060_MER_App : 0)); |
| 516 | |
| 517 | /* Setup the Video Frontend */ |
| 518 | /* Limit pixel range to 16..235 as per CCIR-601 */ |
| 519 | zr36060_write(ptr, ZR060_VCR, ZR060_VCR_Range); |
| 520 | |
| 521 | } else { |
| 522 | dprintk(2, "%s: EXPANSION SETUP\n", ptr->name); |
| 523 | |
| 524 | zr36060_write(ptr, ZR060_LOAD, ZR060_LOAD_SyncRst); |
| 525 | |
| 526 | /* 060 communicates with 067 in master mode */ |
| 527 | zr36060_write(ptr, ZR060_CIR, ZR060_CIR_CodeMstr); |
| 528 | |
| 529 | /* Decompression */ |
| 530 | zr36060_write(ptr, ZR060_CMR, 0); |
| 531 | |
| 532 | /* Must be zero */ |
| 533 | zr36060_write(ptr, ZR060_MBZ, 0x00); |
| 534 | zr36060_write(ptr, ZR060_TCR_HI, 0x00); |
| 535 | zr36060_write(ptr, ZR060_TCR_LO, 0x00); |
| 536 | |
| 537 | /* Disable all IRQs - no DataErr means autoreset */ |
| 538 | zr36060_write(ptr, ZR060_IMR, 0); |
| 539 | |
| 540 | /* setup misc. data for expansion */ |
| 541 | zr36060_write(ptr, ZR060_MER, 0); |
| 542 | |
| 543 | /* setup the fixed jpeg tables - maybe variable, though - |
| 544 | * (see table init section above) */ |
| 545 | zr36060_pushit(ptr, ZR060_DHT_IDX, sizeof(zr36060_dht), |
| 546 | zr36060_dht); |
| 547 | |
| 548 | /* Setup the Video Frontend */ |
| 549 | //zr36060_write(ptr, ZR060_VCR, ZR060_VCR_FIExt); |
| 550 | //this doesn't seem right and doesn't work... |
| 551 | zr36060_write(ptr, ZR060_VCR, ZR060_VCR_Range); |
| 552 | } |
| 553 | |
| 554 | /* Load the tables */ |
| 555 | zr36060_write(ptr, ZR060_LOAD, |
| 556 | ZR060_LOAD_SyncRst | ZR060_LOAD_Load); |
| 557 | zr36060_wait_end(ptr); |
| 558 | dprintk(2, "%s: Status after table preload: 0x%02x\n", ptr->name, |
| 559 | ptr->status); |
| 560 | |
| 561 | if (ptr->status & ZR060_CFSR_Busy) { |
| 562 | dprintk(1, KERN_ERR "%s: init aborted!\n", ptr->name); |
| 563 | return; // something is wrong, its timed out!!!! |
| 564 | } |
| 565 | } |
| 566 | |
| 567 | /* ========================================================================= |
| 568 | CODEC API FUNCTIONS |
| 569 | |
| 570 | this functions are accessed by the master via the API structure |
| 571 | ========================================================================= */ |
| 572 | |
| 573 | /* set compression/expansion mode and launches codec - |
| 574 | this should be the last call from the master before starting processing */ |
| 575 | static int |
| 576 | zr36060_set_mode (struct videocodec *codec, |
| 577 | int mode) |
| 578 | { |
| 579 | struct zr36060 *ptr = (struct zr36060 *) codec->data; |
| 580 | |
| 581 | dprintk(2, "%s: set_mode %d call\n", ptr->name, mode); |
| 582 | |
| 583 | if ((mode != CODEC_DO_EXPANSION) && (mode != CODEC_DO_COMPRESSION)) |
| 584 | return -EINVAL; |
| 585 | |
| 586 | ptr->mode = mode; |
| 587 | zr36060_init(ptr); |
| 588 | |
| 589 | return 0; |
| 590 | } |
| 591 | |
| 592 | /* set picture size (norm is ignored as the codec doesn't know about it) */ |
| 593 | static int |
| 594 | zr36060_set_video (struct videocodec *codec, |
| 595 | struct tvnorm *norm, |
| 596 | struct vfe_settings *cap, |
| 597 | struct vfe_polarity *pol) |
| 598 | { |
| 599 | struct zr36060 *ptr = (struct zr36060 *) codec->data; |
| 600 | u32 reg; |
| 601 | int size; |
| 602 | |
| 603 | dprintk(2, "%s: set_video %d/%d-%dx%d (%%%d) call\n", ptr->name, |
| 604 | cap->x, cap->y, cap->width, cap->height, cap->decimation); |
| 605 | |
| 606 | /* if () return -EINVAL; |
| 607 | * trust the master driver that it knows what it does - so |
| 608 | * we allow invalid startx/y and norm for now ... */ |
| 609 | ptr->width = cap->width / (cap->decimation & 0xff); |
| 610 | ptr->height = cap->height / (cap->decimation >> 8); |
| 611 | |
| 612 | zr36060_write(ptr, ZR060_LOAD, ZR060_LOAD_SyncRst); |
| 613 | |
| 614 | /* Note that VSPol/HSPol bits in zr36060 have the opposite |
| 615 | * meaning of their zr360x7 counterparts with the same names |
| 616 | * N.b. for VSPol this is only true if FIVEdge = 0 (default, |
| 617 | * left unchanged here - in accordance with datasheet). |
| 618 | */ |
| 619 | reg = (!pol->vsync_pol ? ZR060_VPR_VSPol : 0) |
| 620 | | (!pol->hsync_pol ? ZR060_VPR_HSPol : 0) |
| 621 | | (pol->field_pol ? ZR060_VPR_FIPol : 0) |
| 622 | | (pol->blank_pol ? ZR060_VPR_BLPol : 0) |
| 623 | | (pol->subimg_pol ? ZR060_VPR_SImgPol : 0) |
| 624 | | (pol->poe_pol ? ZR060_VPR_PoePol : 0) |
| 625 | | (pol->pvalid_pol ? ZR060_VPR_PValPol : 0) |
| 626 | | (pol->vclk_pol ? ZR060_VPR_VCLKPol : 0); |
| 627 | zr36060_write(ptr, ZR060_VPR, reg); |
| 628 | |
| 629 | reg = 0; |
| 630 | switch (cap->decimation & 0xff) { |
| 631 | default: |
| 632 | case 1: |
| 633 | break; |
| 634 | |
| 635 | case 2: |
| 636 | reg |= ZR060_SR_HScale2; |
| 637 | break; |
| 638 | |
| 639 | case 4: |
| 640 | reg |= ZR060_SR_HScale4; |
| 641 | break; |
| 642 | } |
| 643 | |
| 644 | switch (cap->decimation >> 8) { |
| 645 | default: |
| 646 | case 1: |
| 647 | break; |
| 648 | |
| 649 | case 2: |
| 650 | reg |= ZR060_SR_VScale; |
| 651 | break; |
| 652 | } |
| 653 | zr36060_write(ptr, ZR060_SR, reg); |
| 654 | |
| 655 | zr36060_write(ptr, ZR060_BCR_Y, 0x00); |
| 656 | zr36060_write(ptr, ZR060_BCR_U, 0x80); |
| 657 | zr36060_write(ptr, ZR060_BCR_V, 0x80); |
| 658 | |
| 659 | /* sync generator */ |
| 660 | |
| 661 | reg = norm->Ht - 1; /* Vtotal */ |
| 662 | zr36060_write(ptr, ZR060_SGR_VTOTAL_HI, (reg >> 8) & 0xff); |
| 663 | zr36060_write(ptr, ZR060_SGR_VTOTAL_LO, (reg >> 0) & 0xff); |
| 664 | |
| 665 | reg = norm->Wt - 1; /* Htotal */ |
| 666 | zr36060_write(ptr, ZR060_SGR_HTOTAL_HI, (reg >> 8) & 0xff); |
| 667 | zr36060_write(ptr, ZR060_SGR_HTOTAL_LO, (reg >> 0) & 0xff); |
| 668 | |
| 669 | reg = 6 - 1; /* VsyncSize */ |
| 670 | zr36060_write(ptr, ZR060_SGR_VSYNC, reg); |
| 671 | |
| 672 | //reg = 30 - 1; /* HsyncSize */ |
| 673 | ///*CP*/ reg = (zr->params.norm == 1 ? 57 : 68); |
| 674 | reg = 68; |
| 675 | zr36060_write(ptr, ZR060_SGR_HSYNC, reg); |
| 676 | |
| 677 | reg = norm->VStart - 1; /* BVstart */ |
| 678 | zr36060_write(ptr, ZR060_SGR_BVSTART, reg); |
| 679 | |
| 680 | reg += norm->Ha / 2; /* BVend */ |
| 681 | zr36060_write(ptr, ZR060_SGR_BVEND_HI, (reg >> 8) & 0xff); |
| 682 | zr36060_write(ptr, ZR060_SGR_BVEND_LO, (reg >> 0) & 0xff); |
| 683 | |
| 684 | reg = norm->HStart - 1; /* BHstart */ |
| 685 | zr36060_write(ptr, ZR060_SGR_BHSTART, reg); |
| 686 | |
| 687 | reg += norm->Wa; /* BHend */ |
| 688 | zr36060_write(ptr, ZR060_SGR_BHEND_HI, (reg >> 8) & 0xff); |
| 689 | zr36060_write(ptr, ZR060_SGR_BHEND_LO, (reg >> 0) & 0xff); |
| 690 | |
| 691 | /* active area */ |
| 692 | reg = cap->y + norm->VStart; /* Vstart */ |
| 693 | zr36060_write(ptr, ZR060_AAR_VSTART_HI, (reg >> 8) & 0xff); |
| 694 | zr36060_write(ptr, ZR060_AAR_VSTART_LO, (reg >> 0) & 0xff); |
| 695 | |
| 696 | reg += cap->height; /* Vend */ |
| 697 | zr36060_write(ptr, ZR060_AAR_VEND_HI, (reg >> 8) & 0xff); |
| 698 | zr36060_write(ptr, ZR060_AAR_VEND_LO, (reg >> 0) & 0xff); |
| 699 | |
| 700 | reg = cap->x + norm->HStart; /* Hstart */ |
| 701 | zr36060_write(ptr, ZR060_AAR_HSTART_HI, (reg >> 8) & 0xff); |
| 702 | zr36060_write(ptr, ZR060_AAR_HSTART_LO, (reg >> 0) & 0xff); |
| 703 | |
| 704 | reg += cap->width; /* Hend */ |
| 705 | zr36060_write(ptr, ZR060_AAR_HEND_HI, (reg >> 8) & 0xff); |
| 706 | zr36060_write(ptr, ZR060_AAR_HEND_LO, (reg >> 0) & 0xff); |
| 707 | |
| 708 | /* subimage area */ |
| 709 | reg = norm->VStart - 4; /* SVstart */ |
| 710 | zr36060_write(ptr, ZR060_SWR_VSTART_HI, (reg >> 8) & 0xff); |
| 711 | zr36060_write(ptr, ZR060_SWR_VSTART_LO, (reg >> 0) & 0xff); |
| 712 | |
| 713 | reg += norm->Ha / 2 + 8; /* SVend */ |
| 714 | zr36060_write(ptr, ZR060_SWR_VEND_HI, (reg >> 8) & 0xff); |
| 715 | zr36060_write(ptr, ZR060_SWR_VEND_LO, (reg >> 0) & 0xff); |
| 716 | |
| 717 | reg = norm->HStart /*+ 64 */ - 4; /* SHstart */ |
| 718 | zr36060_write(ptr, ZR060_SWR_HSTART_HI, (reg >> 8) & 0xff); |
| 719 | zr36060_write(ptr, ZR060_SWR_HSTART_LO, (reg >> 0) & 0xff); |
| 720 | |
| 721 | reg += norm->Wa + 8; /* SHend */ |
| 722 | zr36060_write(ptr, ZR060_SWR_HEND_HI, (reg >> 8) & 0xff); |
| 723 | zr36060_write(ptr, ZR060_SWR_HEND_LO, (reg >> 0) & 0xff); |
| 724 | |
| 725 | size = ptr->width * ptr->height; |
| 726 | /* Target compressed field size in bits: */ |
| 727 | size = size * 16; /* uncompressed size in bits */ |
| 728 | /* (Ronald) by default, quality = 100 is a compression |
| 729 | * ratio 1:2. Setting low_bitrate (insmod option) sets |
| 730 | * it to 1:4 (instead of 1:2, zr36060 max) as limit because the |
| 731 | * buz can't handle more at decimation=1... Use low_bitrate if |
| 732 | * you have a Buz, unless you know what you're doing */ |
| 733 | size = size * cap->quality / (low_bitrate ? 400 : 200); |
| 734 | /* Lower limit (arbitrary, 1 KB) */ |
| 735 | if (size < 8192) |
| 736 | size = 8192; |
| 737 | /* Upper limit: 7/8 of the code buffers */ |
| 738 | if (size > ptr->total_code_vol * 7) |
| 739 | size = ptr->total_code_vol * 7; |
| 740 | |
| 741 | ptr->real_code_vol = size >> 3; /* in bytes */ |
| 742 | |
| 743 | /* the MBCVR is the *maximum* block volume, according to the |
| 744 | * JPEG ISO specs, this shouldn't be used, since that allows |
| 745 | * for the best encoding quality. So set it to it's max value */ |
| 746 | reg = ptr->max_block_vol; |
| 747 | zr36060_write(ptr, ZR060_MBCVR, reg); |
| 748 | |
| 749 | return 0; |
| 750 | } |
| 751 | |
| 752 | /* additional control functions */ |
| 753 | static int |
| 754 | zr36060_control (struct videocodec *codec, |
| 755 | int type, |
| 756 | int size, |
| 757 | void *data) |
| 758 | { |
| 759 | struct zr36060 *ptr = (struct zr36060 *) codec->data; |
| 760 | int *ival = (int *) data; |
| 761 | |
| 762 | dprintk(2, "%s: control %d call with %d byte\n", ptr->name, type, |
| 763 | size); |
| 764 | |
| 765 | switch (type) { |
| 766 | case CODEC_G_STATUS: /* get last status */ |
| 767 | if (size != sizeof(int)) |
| 768 | return -EFAULT; |
| 769 | zr36060_read_status(ptr); |
| 770 | *ival = ptr->status; |
| 771 | break; |
| 772 | |
| 773 | case CODEC_G_CODEC_MODE: |
| 774 | if (size != sizeof(int)) |
| 775 | return -EFAULT; |
| 776 | *ival = CODEC_MODE_BJPG; |
| 777 | break; |
| 778 | |
| 779 | case CODEC_S_CODEC_MODE: |
| 780 | if (size != sizeof(int)) |
| 781 | return -EFAULT; |
| 782 | if (*ival != CODEC_MODE_BJPG) |
| 783 | return -EINVAL; |
| 784 | /* not needed, do nothing */ |
| 785 | return 0; |
| 786 | |
| 787 | case CODEC_G_VFE: |
| 788 | case CODEC_S_VFE: |
| 789 | /* not needed, do nothing */ |
| 790 | return 0; |
| 791 | |
| 792 | case CODEC_S_MMAP: |
| 793 | /* not available, give an error */ |
| 794 | return -ENXIO; |
| 795 | |
| 796 | case CODEC_G_JPEG_TDS_BYTE: /* get target volume in byte */ |
| 797 | if (size != sizeof(int)) |
| 798 | return -EFAULT; |
| 799 | *ival = ptr->total_code_vol; |
| 800 | break; |
| 801 | |
| 802 | case CODEC_S_JPEG_TDS_BYTE: /* get target volume in byte */ |
| 803 | if (size != sizeof(int)) |
| 804 | return -EFAULT; |
| 805 | ptr->total_code_vol = *ival; |
| 806 | ptr->real_code_vol = (ptr->total_code_vol * 6) >> 3; |
| 807 | break; |
| 808 | |
| 809 | case CODEC_G_JPEG_SCALE: /* get scaling factor */ |
| 810 | if (size != sizeof(int)) |
| 811 | return -EFAULT; |
| 812 | *ival = zr36060_read_scalefactor(ptr); |
| 813 | break; |
| 814 | |
| 815 | case CODEC_S_JPEG_SCALE: /* set scaling factor */ |
| 816 | if (size != sizeof(int)) |
| 817 | return -EFAULT; |
| 818 | ptr->scalefact = *ival; |
| 819 | break; |
| 820 | |
| 821 | case CODEC_G_JPEG_APP_DATA: { /* get appn marker data */ |
| 822 | struct jpeg_app_marker *app = data; |
| 823 | |
| 824 | if (size != sizeof(struct jpeg_app_marker)) |
| 825 | return -EFAULT; |
| 826 | |
| 827 | *app = ptr->app; |
| 828 | break; |
| 829 | } |
| 830 | |
| 831 | case CODEC_S_JPEG_APP_DATA: { /* set appn marker data */ |
| 832 | struct jpeg_app_marker *app = data; |
| 833 | |
| 834 | if (size != sizeof(struct jpeg_app_marker)) |
| 835 | return -EFAULT; |
| 836 | |
| 837 | ptr->app = *app; |
| 838 | break; |
| 839 | } |
| 840 | |
| 841 | case CODEC_G_JPEG_COM_DATA: { /* get comment marker data */ |
| 842 | struct jpeg_com_marker *com = data; |
| 843 | |
| 844 | if (size != sizeof(struct jpeg_com_marker)) |
| 845 | return -EFAULT; |
| 846 | |
| 847 | *com = ptr->com; |
| 848 | break; |
| 849 | } |
| 850 | |
| 851 | case CODEC_S_JPEG_COM_DATA: { /* set comment marker data */ |
| 852 | struct jpeg_com_marker *com = data; |
| 853 | |
| 854 | if (size != sizeof(struct jpeg_com_marker)) |
| 855 | return -EFAULT; |
| 856 | |
| 857 | ptr->com = *com; |
| 858 | break; |
| 859 | } |
| 860 | |
| 861 | default: |
| 862 | return -EINVAL; |
| 863 | } |
| 864 | |
| 865 | return size; |
| 866 | } |
| 867 | |
| 868 | /* ========================================================================= |
| 869 | Exit and unregister function: |
| 870 | |
| 871 | Deinitializes Zoran's JPEG processor |
| 872 | ========================================================================= */ |
| 873 | |
| 874 | static int |
| 875 | zr36060_unset (struct videocodec *codec) |
| 876 | { |
| 877 | struct zr36060 *ptr = codec->data; |
| 878 | |
| 879 | if (ptr) { |
| 880 | /* do wee need some codec deinit here, too ???? */ |
| 881 | |
| 882 | dprintk(1, "%s: finished codec #%d\n", ptr->name, |
| 883 | ptr->num); |
| 884 | kfree(ptr); |
| 885 | codec->data = NULL; |
| 886 | |
| 887 | zr36060_codecs--; |
| 888 | return 0; |
| 889 | } |
| 890 | |
| 891 | return -EFAULT; |
| 892 | } |
| 893 | |
| 894 | /* ========================================================================= |
| 895 | Setup and registry function: |
| 896 | |
| 897 | Initializes Zoran's JPEG processor |
| 898 | |
| 899 | Also sets pixel size, average code size, mode (compr./decompr.) |
| 900 | (the given size is determined by the processor with the video interface) |
| 901 | ========================================================================= */ |
| 902 | |
| 903 | static int |
| 904 | zr36060_setup (struct videocodec *codec) |
| 905 | { |
| 906 | struct zr36060 *ptr; |
| 907 | int res; |
| 908 | |
| 909 | dprintk(2, "zr36060: initializing MJPEG subsystem #%d.\n", |
| 910 | zr36060_codecs); |
| 911 | |
| 912 | if (zr36060_codecs == MAX_CODECS) { |
| 913 | dprintk(1, |
| 914 | KERN_ERR "zr36060: Can't attach more codecs!\n"); |
| 915 | return -ENOSPC; |
| 916 | } |
| 917 | //mem structure init |
Panagiotis Issaris | 7408187 | 2006-01-11 19:40:56 -0200 | [diff] [blame] | 918 | codec->data = ptr = kzalloc(sizeof(struct zr36060), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 919 | if (NULL == ptr) { |
| 920 | dprintk(1, KERN_ERR "zr36060: Can't get enough memory!\n"); |
| 921 | return -ENOMEM; |
| 922 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 923 | |
| 924 | snprintf(ptr->name, sizeof(ptr->name), "zr36060[%d]", |
| 925 | zr36060_codecs); |
| 926 | ptr->num = zr36060_codecs++; |
| 927 | ptr->codec = codec; |
| 928 | |
| 929 | //testing |
| 930 | res = zr36060_basic_test(ptr); |
| 931 | if (res < 0) { |
| 932 | zr36060_unset(codec); |
| 933 | return res; |
| 934 | } |
| 935 | //final setup |
| 936 | memcpy(ptr->h_samp_ratio, zr36060_decimation_h, 8); |
| 937 | memcpy(ptr->v_samp_ratio, zr36060_decimation_v, 8); |
| 938 | |
| 939 | ptr->bitrate_ctrl = 0; /* 0 or 1 - fixed file size flag |
| 940 | * (what is the difference?) */ |
| 941 | ptr->mode = CODEC_DO_COMPRESSION; |
| 942 | ptr->width = 384; |
| 943 | ptr->height = 288; |
| 944 | ptr->total_code_vol = 16000; /* CHECKME */ |
| 945 | ptr->real_code_vol = (ptr->total_code_vol * 6) >> 3; |
| 946 | ptr->max_block_vol = 240; /* CHECKME, was 120 is 240 */ |
| 947 | ptr->scalefact = 0x100; |
| 948 | ptr->dri = 1; /* CHECKME, was 8 is 1 */ |
| 949 | |
| 950 | /* by default, no COM or APP markers - app should set those */ |
| 951 | ptr->com.len = 0; |
| 952 | ptr->app.appn = 0; |
| 953 | ptr->app.len = 0; |
| 954 | |
| 955 | zr36060_init(ptr); |
| 956 | |
| 957 | dprintk(1, KERN_INFO "%s: codec attached and running\n", |
| 958 | ptr->name); |
| 959 | |
| 960 | return 0; |
| 961 | } |
| 962 | |
| 963 | static const struct videocodec zr36060_codec = { |
| 964 | .owner = THIS_MODULE, |
| 965 | .name = "zr36060", |
| 966 | .magic = 0L, // magic not used |
| 967 | .flags = |
| 968 | CODEC_FLAG_JPEG | CODEC_FLAG_HARDWARE | CODEC_FLAG_ENCODER | |
| 969 | CODEC_FLAG_DECODER | CODEC_FLAG_VFE, |
| 970 | .type = CODEC_TYPE_ZR36060, |
| 971 | .setup = zr36060_setup, // functionality |
| 972 | .unset = zr36060_unset, |
| 973 | .set_mode = zr36060_set_mode, |
| 974 | .set_video = zr36060_set_video, |
| 975 | .control = zr36060_control, |
| 976 | // others are not used |
| 977 | }; |
| 978 | |
| 979 | /* ========================================================================= |
| 980 | HOOK IN DRIVER AS KERNEL MODULE |
| 981 | ========================================================================= */ |
| 982 | |
| 983 | static int __init |
| 984 | zr36060_init_module (void) |
| 985 | { |
| 986 | //dprintk(1, "zr36060 driver %s\n",ZR060_VERSION); |
| 987 | zr36060_codecs = 0; |
| 988 | return videocodec_register(&zr36060_codec); |
| 989 | } |
| 990 | |
| 991 | static void __exit |
| 992 | zr36060_cleanup_module (void) |
| 993 | { |
| 994 | if (zr36060_codecs) { |
| 995 | dprintk(1, |
| 996 | "zr36060: something's wrong - %d codecs left somehow.\n", |
| 997 | zr36060_codecs); |
Mauro Carvalho Chehab | d56410e | 2006-03-25 09:19:53 -0300 | [diff] [blame] | 998 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 999 | |
| 1000 | /* however, we can't just stay alive */ |
| 1001 | videocodec_unregister(&zr36060_codec); |
| 1002 | } |
| 1003 | |
| 1004 | module_init(zr36060_init_module); |
| 1005 | module_exit(zr36060_cleanup_module); |
| 1006 | |
| 1007 | MODULE_AUTHOR("Laurent Pinchart <laurent.pinchart@skynet.be>"); |
| 1008 | MODULE_DESCRIPTION("Driver module for ZR36060 jpeg processors " |
| 1009 | ZR060_VERSION); |
| 1010 | MODULE_LICENSE("GPL"); |