Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Colour AR M64278(VGA) driver for Video4Linux |
| 3 | * |
| 4 | * Copyright (C) 2003 Takeo Takahashi <takahashi.takeo@renesas.com> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU General Public License |
| 8 | * as published by the Free Software Foundation; either version |
| 9 | * 2 of the License, or (at your option) any later version. |
| 10 | * |
| 11 | * Some code is taken from AR driver sample program for M3T-M32700UT. |
| 12 | * |
| 13 | * AR driver sample (M32R SDK): |
| 14 | * Copyright (c) 2003 RENESAS TECHNOROGY CORPORATION |
| 15 | * AND RENESAS SOLUTIONS CORPORATION |
| 16 | * All Rights Reserved. |
| 17 | * |
| 18 | * 2003-09-01: Support w3cam by Takeo Takahashi |
| 19 | */ |
| 20 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 21 | #include <linux/init.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 22 | #include <linux/module.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 23 | #include <linux/delay.h> |
| 24 | #include <linux/errno.h> |
| 25 | #include <linux/fs.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 26 | #include <linux/kernel.h> |
| 27 | #include <linux/slab.h> |
| 28 | #include <linux/mm.h> |
| 29 | #include <linux/sched.h> |
Hans Verkuil | b8e56b6f | 2010-03-29 16:05:33 -0300 | [diff] [blame] | 30 | #include <linux/videodev2.h> |
Mauro Carvalho Chehab | 5e87efa | 2006-06-05 10:26:32 -0300 | [diff] [blame] | 31 | #include <media/v4l2-common.h> |
Hans Verkuil | b8e56b6f | 2010-03-29 16:05:33 -0300 | [diff] [blame] | 32 | #include <media/v4l2-device.h> |
Adrian Bunk | dfb9aff | 2008-07-28 16:58:19 -0300 | [diff] [blame] | 33 | #include <media/v4l2-ioctl.h> |
Hans Verkuil | c551af6 | 2012-05-08 16:50:33 -0300 | [diff] [blame] | 34 | #include <media/v4l2-fh.h> |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 35 | #include <linux/mutex.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 36 | |
Linus Torvalds | 7c0f6ba | 2016-12-24 11:46:01 -0800 | [diff] [blame] | 37 | #include <linux/uaccess.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 38 | #include <asm/m32r.h> |
| 39 | #include <asm/io.h> |
| 40 | #include <asm/dma.h> |
| 41 | #include <asm/byteorder.h> |
| 42 | |
| 43 | #if 0 |
Hans Verkuil | 88f4423 | 2010-03-22 04:44:29 -0300 | [diff] [blame] | 44 | #define DEBUG(n, args...) printk(KERN_INFO args) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 45 | #define CHECK_LOST 1 |
| 46 | #else |
| 47 | #define DEBUG(n, args...) |
| 48 | #define CHECK_LOST 0 |
| 49 | #endif |
| 50 | |
| 51 | /* |
| 52 | * USE_INT is always 0, interrupt mode is not available |
| 53 | * on linux due to lack of speed |
| 54 | */ |
| 55 | #define USE_INT 0 /* Don't modify */ |
| 56 | |
Mauro Carvalho Chehab | 1990d50 | 2011-06-24 14:45:49 -0300 | [diff] [blame] | 57 | #define VERSION "0.0.5" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 58 | |
| 59 | #define ar_inl(addr) inl((unsigned long)(addr)) |
Hans Verkuil | 88f4423 | 2010-03-22 04:44:29 -0300 | [diff] [blame] | 60 | #define ar_outl(val, addr) outl((unsigned long)(val), (unsigned long)(addr)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 61 | |
| 62 | extern struct cpuinfo_m32r boot_cpu_data; |
| 63 | |
| 64 | /* |
| 65 | * CCD pixel size |
| 66 | * Note that M32700UT does not support CIF mode, but QVGA is |
| 67 | * supported by M32700UT hardware using VGA mode of AR LSI. |
| 68 | * |
| 69 | * Supported: VGA (Normal mode, Interlace mode) |
| 70 | * QVGA (Always Interlace mode of VGA) |
| 71 | * |
| 72 | */ |
| 73 | #define AR_WIDTH_VGA 640 |
| 74 | #define AR_HEIGHT_VGA 480 |
| 75 | #define AR_WIDTH_QVGA 320 |
| 76 | #define AR_HEIGHT_QVGA 240 |
| 77 | #define MIN_AR_WIDTH AR_WIDTH_QVGA |
| 78 | #define MIN_AR_HEIGHT AR_HEIGHT_QVGA |
| 79 | #define MAX_AR_WIDTH AR_WIDTH_VGA |
| 80 | #define MAX_AR_HEIGHT AR_HEIGHT_VGA |
| 81 | |
| 82 | /* bits & bytes per pixel */ |
| 83 | #define AR_BITS_PER_PIXEL 16 |
Hans Verkuil | b8e56b6f | 2010-03-29 16:05:33 -0300 | [diff] [blame] | 84 | #define AR_BYTES_PER_PIXEL (AR_BITS_PER_PIXEL / 8) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 85 | |
| 86 | /* line buffer size */ |
| 87 | #define AR_LINE_BYTES_VGA (AR_WIDTH_VGA * AR_BYTES_PER_PIXEL) |
| 88 | #define AR_LINE_BYTES_QVGA (AR_WIDTH_QVGA * AR_BYTES_PER_PIXEL) |
| 89 | #define MAX_AR_LINE_BYTES AR_LINE_BYTES_VGA |
| 90 | |
| 91 | /* frame size & type */ |
| 92 | #define AR_FRAME_BYTES_VGA \ |
| 93 | (AR_WIDTH_VGA * AR_HEIGHT_VGA * AR_BYTES_PER_PIXEL) |
| 94 | #define AR_FRAME_BYTES_QVGA \ |
| 95 | (AR_WIDTH_QVGA * AR_HEIGHT_QVGA * AR_BYTES_PER_PIXEL) |
| 96 | #define MAX_AR_FRAME_BYTES \ |
| 97 | (MAX_AR_WIDTH * MAX_AR_HEIGHT * AR_BYTES_PER_PIXEL) |
| 98 | |
| 99 | #define AR_MAX_FRAME 15 |
| 100 | |
| 101 | /* capture size */ |
| 102 | #define AR_SIZE_VGA 0 |
| 103 | #define AR_SIZE_QVGA 1 |
| 104 | |
| 105 | /* capture mode */ |
| 106 | #define AR_MODE_INTERLACE 0 |
| 107 | #define AR_MODE_NORMAL 1 |
| 108 | |
Hans Verkuil | b8e56b6f | 2010-03-29 16:05:33 -0300 | [diff] [blame] | 109 | struct ar { |
| 110 | struct v4l2_device v4l2_dev; |
| 111 | struct video_device vdev; |
Arnd Bergmann | f97881f | 2014-02-26 08:01:48 -0300 | [diff] [blame] | 112 | int start_capture; /* duaring capture in INT. mode. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 113 | #if USE_INT |
| 114 | unsigned char *line_buff; /* DMA line buffer */ |
| 115 | #endif |
| 116 | unsigned char *frame[MAX_AR_HEIGHT]; /* frame data */ |
| 117 | short size; /* capture size */ |
| 118 | short mode; /* capture mode */ |
| 119 | int width, height; |
| 120 | int frame_bytes, line_bytes; |
| 121 | wait_queue_head_t wait; |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 122 | struct mutex lock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 123 | }; |
| 124 | |
Hans Verkuil | b8e56b6f | 2010-03-29 16:05:33 -0300 | [diff] [blame] | 125 | static struct ar ardev; |
| 126 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 127 | static int video_nr = -1; /* video device number (first free) */ |
Hans Verkuil | b8e56b6f | 2010-03-29 16:05:33 -0300 | [diff] [blame] | 128 | static unsigned char yuv[MAX_AR_FRAME_BYTES]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 129 | |
| 130 | /* module parameters */ |
| 131 | /* default frequency */ |
| 132 | #define DEFAULT_FREQ 50 /* 50 or 75 (MHz) is available as BCLK */ |
| 133 | static int freq = DEFAULT_FREQ; /* BCLK: available 50 or 70 (MHz) */ |
Douglas Schilling Landgraf | ff699e6 | 2008-04-22 14:41:48 -0300 | [diff] [blame] | 134 | static int vga; /* default mode(0:QVGA mode, other:VGA mode) */ |
| 135 | static int vga_interlace; /* 0 is normal mode for, else interlace mode */ |
Eric Sesterhenn / snakebyte | 9b565eb | 2006-01-13 14:10:23 -0200 | [diff] [blame] | 136 | module_param(freq, int, 0); |
| 137 | module_param(vga, int, 0); |
| 138 | module_param(vga_interlace, int, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 139 | |
Hans Verkuil | b8e56b6f | 2010-03-29 16:05:33 -0300 | [diff] [blame] | 140 | static void wait_for_vsync(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 141 | { |
| 142 | while (ar_inl(ARVCR0) & ARVCR0_VDS) /* wait for VSYNC */ |
| 143 | cpu_relax(); |
| 144 | while (!(ar_inl(ARVCR0) & ARVCR0_VDS)) /* wait for VSYNC */ |
| 145 | cpu_relax(); |
| 146 | } |
| 147 | |
Hans Verkuil | b8e56b6f | 2010-03-29 16:05:33 -0300 | [diff] [blame] | 148 | static void wait_acknowledge(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 149 | { |
| 150 | int i; |
| 151 | |
| 152 | for (i = 0; i < 1000; i++) |
| 153 | cpu_relax(); |
| 154 | while (ar_inl(PLDI2CSTS) & PLDI2CSTS_NOACK) |
| 155 | cpu_relax(); |
| 156 | } |
| 157 | |
| 158 | /******************************************************************* |
| 159 | * I2C functions |
| 160 | *******************************************************************/ |
Hans Verkuil | b8e56b6f | 2010-03-29 16:05:33 -0300 | [diff] [blame] | 161 | static void iic(int n, unsigned long addr, unsigned long data1, unsigned long data2, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 162 | unsigned long data3) |
| 163 | { |
| 164 | int i; |
| 165 | |
Mauro Carvalho Chehab | d56410e | 2006-03-25 09:19:53 -0300 | [diff] [blame] | 166 | /* Slave Address */ |
| 167 | ar_outl(addr, PLDI2CDATA); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 168 | wait_for_vsync(); |
| 169 | |
Mauro Carvalho Chehab | d56410e | 2006-03-25 09:19:53 -0300 | [diff] [blame] | 170 | /* Start */ |
| 171 | ar_outl(1, PLDI2CCND); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 172 | wait_acknowledge(); |
| 173 | |
| 174 | /* Transfer data 1 */ |
Mauro Carvalho Chehab | d56410e | 2006-03-25 09:19:53 -0300 | [diff] [blame] | 175 | ar_outl(data1, PLDI2CDATA); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 176 | wait_for_vsync(); |
Mauro Carvalho Chehab | d56410e | 2006-03-25 09:19:53 -0300 | [diff] [blame] | 177 | ar_outl(PLDI2CSTEN_STEN, PLDI2CSTEN); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 178 | wait_acknowledge(); |
| 179 | |
| 180 | /* Transfer data 2 */ |
Mauro Carvalho Chehab | d56410e | 2006-03-25 09:19:53 -0300 | [diff] [blame] | 181 | ar_outl(data2, PLDI2CDATA); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 182 | wait_for_vsync(); |
Mauro Carvalho Chehab | d56410e | 2006-03-25 09:19:53 -0300 | [diff] [blame] | 183 | ar_outl(PLDI2CSTEN_STEN, PLDI2CSTEN); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 184 | wait_acknowledge(); |
| 185 | |
| 186 | if (n == 3) { |
| 187 | /* Transfer data 3 */ |
Mauro Carvalho Chehab | d56410e | 2006-03-25 09:19:53 -0300 | [diff] [blame] | 188 | ar_outl(data3, PLDI2CDATA); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 189 | wait_for_vsync(); |
Mauro Carvalho Chehab | d56410e | 2006-03-25 09:19:53 -0300 | [diff] [blame] | 190 | ar_outl(PLDI2CSTEN_STEN, PLDI2CSTEN); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 191 | wait_acknowledge(); |
Mauro Carvalho Chehab | d56410e | 2006-03-25 09:19:53 -0300 | [diff] [blame] | 192 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 193 | |
Mauro Carvalho Chehab | d56410e | 2006-03-25 09:19:53 -0300 | [diff] [blame] | 194 | /* Stop */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 195 | for (i = 0; i < 100; i++) |
| 196 | cpu_relax(); |
Mauro Carvalho Chehab | d56410e | 2006-03-25 09:19:53 -0300 | [diff] [blame] | 197 | ar_outl(2, PLDI2CCND); |
| 198 | ar_outl(2, PLDI2CCND); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 199 | |
| 200 | while (ar_inl(PLDI2CSTS) & PLDI2CSTS_BB) |
| 201 | cpu_relax(); |
| 202 | } |
| 203 | |
| 204 | |
Hans Verkuil | b8e56b6f | 2010-03-29 16:05:33 -0300 | [diff] [blame] | 205 | static void init_iic(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 206 | { |
| 207 | DEBUG(1, "init_iic:\n"); |
| 208 | |
Mauro Carvalho Chehab | d56410e | 2006-03-25 09:19:53 -0300 | [diff] [blame] | 209 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 210 | * ICU Setting (iic) |
| 211 | */ |
Mauro Carvalho Chehab | d56410e | 2006-03-25 09:19:53 -0300 | [diff] [blame] | 212 | /* I2C Setting */ |
| 213 | ar_outl(0x0, PLDI2CCR); /* I2CCR Disable */ |
| 214 | ar_outl(0x0300, PLDI2CMOD); /* I2CMOD ACK/8b-data/7b-addr/auto */ |
| 215 | ar_outl(0x1, PLDI2CACK); /* I2CACK ACK */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 216 | |
Trent Piepho | 657de3c | 2006-06-20 00:30:57 -0300 | [diff] [blame] | 217 | /* I2C CLK */ |
Mauro Carvalho Chehab | d56410e | 2006-03-25 09:19:53 -0300 | [diff] [blame] | 218 | /* 50MH-100k */ |
Hans Verkuil | 88f4423 | 2010-03-22 04:44:29 -0300 | [diff] [blame] | 219 | if (freq == 75) |
Mauro Carvalho Chehab | d56410e | 2006-03-25 09:19:53 -0300 | [diff] [blame] | 220 | ar_outl(369, PLDI2CFREQ); /* BCLK = 75MHz */ |
Hans Verkuil | 88f4423 | 2010-03-22 04:44:29 -0300 | [diff] [blame] | 221 | else if (freq == 50) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 222 | ar_outl(244, PLDI2CFREQ); /* BCLK = 50MHz */ |
Hans Verkuil | 88f4423 | 2010-03-22 04:44:29 -0300 | [diff] [blame] | 223 | else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 224 | ar_outl(244, PLDI2CFREQ); /* default: BCLK = 50MHz */ |
Mauro Carvalho Chehab | d56410e | 2006-03-25 09:19:53 -0300 | [diff] [blame] | 225 | ar_outl(0x1, PLDI2CCR); /* I2CCR Enable */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 226 | } |
| 227 | |
| 228 | /************************************************************************** |
| 229 | * |
| 230 | * Video4Linux Interface functions |
| 231 | * |
| 232 | **************************************************************************/ |
| 233 | |
| 234 | static inline void disable_dma(void) |
| 235 | { |
| 236 | ar_outl(0x8000, M32R_DMAEN_PORTL); /* disable DMA0 */ |
| 237 | } |
| 238 | |
| 239 | static inline void enable_dma(void) |
| 240 | { |
| 241 | ar_outl(0x8080, M32R_DMAEN_PORTL); /* enable DMA0 */ |
| 242 | } |
| 243 | |
| 244 | static inline void clear_dma_status(void) |
| 245 | { |
| 246 | ar_outl(0x8000, M32R_DMAEDET_PORTL); /* clear status */ |
| 247 | } |
| 248 | |
Hans Verkuil | b8e56b6f | 2010-03-29 16:05:33 -0300 | [diff] [blame] | 249 | static void wait_for_vertical_sync(struct ar *ar, int exp_line) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 250 | { |
| 251 | #if CHECK_LOST |
| 252 | int tmout = 10000; /* FIXME */ |
| 253 | int l; |
| 254 | |
| 255 | /* |
| 256 | * check HCOUNT because we cannot check vertical sync. |
Mauro Carvalho Chehab | d56410e | 2006-03-25 09:19:53 -0300 | [diff] [blame] | 257 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 258 | for (; tmout >= 0; tmout--) { |
| 259 | l = ar_inl(ARVHCOUNT); |
| 260 | if (l == exp_line) |
| 261 | break; |
| 262 | } |
| 263 | if (tmout < 0) |
Hans Verkuil | b8e56b6f | 2010-03-29 16:05:33 -0300 | [diff] [blame] | 264 | v4l2_err(&ar->v4l2_dev, "lost %d -> %d\n", exp_line, l); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 265 | #else |
| 266 | while (ar_inl(ARVHCOUNT) != exp_line) |
| 267 | cpu_relax(); |
| 268 | #endif |
| 269 | } |
| 270 | |
| 271 | static ssize_t ar_read(struct file *file, char *buf, size_t count, loff_t *ppos) |
| 272 | { |
Hans Verkuil | b8e56b6f | 2010-03-29 16:05:33 -0300 | [diff] [blame] | 273 | struct ar *ar = video_drvdata(file); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 274 | long ret = ar->frame_bytes; /* return read bytes */ |
| 275 | unsigned long arvcr1 = 0; |
| 276 | unsigned long flags; |
| 277 | unsigned char *p; |
| 278 | int h, w; |
| 279 | unsigned char *py, *pu, *pv; |
Hans Verkuil | 88f4423 | 2010-03-22 04:44:29 -0300 | [diff] [blame] | 280 | #if !USE_INT |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 281 | int l; |
| 282 | #endif |
| 283 | |
| 284 | DEBUG(1, "ar_read()\n"); |
| 285 | |
| 286 | if (ar->size == AR_SIZE_QVGA) |
| 287 | arvcr1 |= ARVCR1_QVGA; |
| 288 | if (ar->mode == AR_MODE_NORMAL) |
| 289 | arvcr1 |= ARVCR1_NORMAL; |
| 290 | |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 291 | mutex_lock(&ar->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 292 | |
| 293 | #if USE_INT |
| 294 | local_irq_save(flags); |
| 295 | disable_dma(); |
| 296 | ar_outl(0xa1871300, M32R_DMA0CR0_PORTL); |
| 297 | ar_outl(0x01000000, M32R_DMA0CR1_PORTL); |
| 298 | |
| 299 | /* set AR FIFO address as source(BSEL5) */ |
| 300 | ar_outl(ARDATA32, M32R_DMA0CSA_PORTL); |
| 301 | ar_outl(ARDATA32, M32R_DMA0RSA_PORTL); |
| 302 | ar_outl(ar->line_buff, M32R_DMA0CDA_PORTL); /* destination addr. */ |
| 303 | ar_outl(ar->line_buff, M32R_DMA0RDA_PORTL); /* reload address */ |
| 304 | ar_outl(ar->line_bytes, M32R_DMA0CBCUT_PORTL); /* byte count (bytes) */ |
| 305 | ar_outl(ar->line_bytes, M32R_DMA0RBCUT_PORTL); /* reload count (bytes) */ |
| 306 | |
| 307 | /* |
Hans Verkuil | b8e56b6f | 2010-03-29 16:05:33 -0300 | [diff] [blame] | 308 | * Okay, kick AR LSI to invoke an interrupt |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 309 | */ |
Arnd Bergmann | f97881f | 2014-02-26 08:01:48 -0300 | [diff] [blame] | 310 | ar->start_capture = -1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 311 | ar_outl(arvcr1 | ARVCR1_HIEN, ARVCR1); |
| 312 | local_irq_restore(flags); |
| 313 | /* .... AR interrupts .... */ |
Arnd Bergmann | f97881f | 2014-02-26 08:01:48 -0300 | [diff] [blame] | 314 | wait_event_interruptible(ar->wait, ar->start_capture == 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 315 | if (signal_pending(current)) { |
Hans Verkuil | 88f4423 | 2010-03-22 04:44:29 -0300 | [diff] [blame] | 316 | printk(KERN_ERR "arv: interrupted while get frame data.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 317 | ret = -EINTR; |
| 318 | goto out_up; |
| 319 | } |
| 320 | #else /* ! USE_INT */ |
| 321 | /* polling */ |
| 322 | ar_outl(arvcr1, ARVCR1); |
| 323 | disable_dma(); |
| 324 | ar_outl(0x8000, M32R_DMAEDET_PORTL); |
| 325 | ar_outl(0xa0861300, M32R_DMA0CR0_PORTL); |
| 326 | ar_outl(0x01000000, M32R_DMA0CR1_PORTL); |
| 327 | ar_outl(ARDATA32, M32R_DMA0CSA_PORTL); |
| 328 | ar_outl(ARDATA32, M32R_DMA0RSA_PORTL); |
| 329 | ar_outl(ar->line_bytes, M32R_DMA0CBCUT_PORTL); |
| 330 | ar_outl(ar->line_bytes, M32R_DMA0RBCUT_PORTL); |
| 331 | |
| 332 | local_irq_save(flags); |
| 333 | while (ar_inl(ARVHCOUNT) != 0) /* wait for 0 */ |
| 334 | cpu_relax(); |
| 335 | if (ar->mode == AR_MODE_INTERLACE && ar->size == AR_SIZE_VGA) { |
| 336 | for (h = 0; h < ar->height; h++) { |
Hans Verkuil | b8e56b6f | 2010-03-29 16:05:33 -0300 | [diff] [blame] | 337 | wait_for_vertical_sync(ar, h); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 338 | if (h < (AR_HEIGHT_VGA/2)) |
| 339 | l = h << 1; |
| 340 | else |
| 341 | l = (((h - (AR_HEIGHT_VGA/2)) << 1) + 1); |
| 342 | ar_outl(virt_to_phys(ar->frame[l]), M32R_DMA0CDA_PORTL); |
| 343 | enable_dma(); |
| 344 | while (!(ar_inl(M32R_DMAEDET_PORTL) & 0x8000)) |
| 345 | cpu_relax(); |
| 346 | disable_dma(); |
| 347 | clear_dma_status(); |
| 348 | ar_outl(0xa0861300, M32R_DMA0CR0_PORTL); |
| 349 | } |
| 350 | } else { |
| 351 | for (h = 0; h < ar->height; h++) { |
Hans Verkuil | b8e56b6f | 2010-03-29 16:05:33 -0300 | [diff] [blame] | 352 | wait_for_vertical_sync(ar, h); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 353 | ar_outl(virt_to_phys(ar->frame[h]), M32R_DMA0CDA_PORTL); |
| 354 | enable_dma(); |
| 355 | while (!(ar_inl(M32R_DMAEDET_PORTL) & 0x8000)) |
| 356 | cpu_relax(); |
| 357 | disable_dma(); |
| 358 | clear_dma_status(); |
| 359 | ar_outl(0xa0861300, M32R_DMA0CR0_PORTL); |
| 360 | } |
| 361 | } |
| 362 | local_irq_restore(flags); |
| 363 | #endif /* ! USE_INT */ |
| 364 | |
| 365 | /* |
| 366 | * convert YUV422 to YUV422P |
| 367 | * +--------------------+ |
| 368 | * | Y0,Y1,... | |
| 369 | * | ..............Yn | |
| 370 | * +--------------------+ |
| 371 | * | U0,U1,........Un | |
| 372 | * +--------------------+ |
| 373 | * | V0,V1,........Vn | |
| 374 | * +--------------------+ |
| 375 | */ |
| 376 | py = yuv; |
| 377 | pu = py + (ar->frame_bytes / 2); |
| 378 | pv = pu + (ar->frame_bytes / 4); |
| 379 | for (h = 0; h < ar->height; h++) { |
| 380 | p = ar->frame[h]; |
| 381 | for (w = 0; w < ar->line_bytes; w += 4) { |
| 382 | *py++ = *p++; |
| 383 | *pu++ = *p++; |
| 384 | *py++ = *p++; |
| 385 | *pv++ = *p++; |
| 386 | } |
| 387 | } |
| 388 | if (copy_to_user(buf, yuv, ar->frame_bytes)) { |
Hans Verkuil | b8e56b6f | 2010-03-29 16:05:33 -0300 | [diff] [blame] | 389 | v4l2_err(&ar->v4l2_dev, "failed while copy_to_user yuv.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 390 | ret = -EFAULT; |
| 391 | goto out_up; |
| 392 | } |
| 393 | DEBUG(1, "ret = %d\n", ret); |
| 394 | out_up: |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 395 | mutex_unlock(&ar->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 396 | return ret; |
| 397 | } |
| 398 | |
Hans Verkuil | b8e56b6f | 2010-03-29 16:05:33 -0300 | [diff] [blame] | 399 | static int ar_querycap(struct file *file, void *priv, |
| 400 | struct v4l2_capability *vcap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 401 | { |
Hans Verkuil | b8e56b6f | 2010-03-29 16:05:33 -0300 | [diff] [blame] | 402 | struct ar *ar = video_drvdata(file); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 403 | |
Hans Verkuil | b8e56b6f | 2010-03-29 16:05:33 -0300 | [diff] [blame] | 404 | strlcpy(vcap->driver, ar->vdev.name, sizeof(vcap->driver)); |
| 405 | strlcpy(vcap->card, "Colour AR VGA", sizeof(vcap->card)); |
| 406 | strlcpy(vcap->bus_info, "Platform", sizeof(vcap->bus_info)); |
Hans Verkuil | c551af6 | 2012-05-08 16:50:33 -0300 | [diff] [blame] | 407 | vcap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE; |
| 408 | vcap->capabilities = vcap->device_caps | V4L2_CAP_DEVICE_CAPS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 409 | return 0; |
| 410 | } |
| 411 | |
Hans Verkuil | b8e56b6f | 2010-03-29 16:05:33 -0300 | [diff] [blame] | 412 | static int ar_enum_input(struct file *file, void *fh, struct v4l2_input *vin) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 413 | { |
Hans Verkuil | b8e56b6f | 2010-03-29 16:05:33 -0300 | [diff] [blame] | 414 | if (vin->index > 0) |
| 415 | return -EINVAL; |
| 416 | strlcpy(vin->name, "Camera", sizeof(vin->name)); |
| 417 | vin->type = V4L2_INPUT_TYPE_CAMERA; |
| 418 | vin->audioset = 0; |
| 419 | vin->tuner = 0; |
| 420 | vin->std = V4L2_STD_ALL; |
| 421 | vin->status = 0; |
| 422 | return 0; |
| 423 | } |
| 424 | |
| 425 | static int ar_g_input(struct file *file, void *fh, unsigned int *inp) |
| 426 | { |
| 427 | *inp = 0; |
| 428 | return 0; |
| 429 | } |
| 430 | |
| 431 | static int ar_s_input(struct file *file, void *fh, unsigned int inp) |
| 432 | { |
| 433 | return inp ? -EINVAL : 0; |
| 434 | } |
| 435 | |
| 436 | static int ar_g_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *fmt) |
| 437 | { |
| 438 | struct ar *ar = video_drvdata(file); |
| 439 | struct v4l2_pix_format *pix = &fmt->fmt.pix; |
| 440 | |
| 441 | pix->width = ar->width; |
| 442 | pix->height = ar->height; |
| 443 | pix->pixelformat = V4L2_PIX_FMT_YUV422P; |
| 444 | pix->field = (ar->mode == AR_MODE_NORMAL) ? V4L2_FIELD_NONE : V4L2_FIELD_INTERLACED; |
| 445 | pix->bytesperline = ar->width; |
| 446 | pix->sizeimage = 2 * ar->width * ar->height; |
| 447 | /* Just a guess */ |
| 448 | pix->colorspace = V4L2_COLORSPACE_SMPTE170M; |
| 449 | return 0; |
| 450 | } |
| 451 | |
| 452 | static int ar_try_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *fmt) |
| 453 | { |
| 454 | struct ar *ar = video_drvdata(file); |
| 455 | struct v4l2_pix_format *pix = &fmt->fmt.pix; |
| 456 | |
| 457 | if (pix->height <= AR_HEIGHT_QVGA || pix->width <= AR_WIDTH_QVGA) { |
| 458 | pix->height = AR_HEIGHT_QVGA; |
| 459 | pix->width = AR_WIDTH_QVGA; |
| 460 | pix->field = V4L2_FIELD_INTERLACED; |
| 461 | } else { |
| 462 | pix->height = AR_HEIGHT_VGA; |
| 463 | pix->width = AR_WIDTH_VGA; |
| 464 | pix->field = vga_interlace ? V4L2_FIELD_INTERLACED : V4L2_FIELD_NONE; |
| 465 | } |
| 466 | pix->pixelformat = V4L2_PIX_FMT_YUV422P; |
| 467 | pix->bytesperline = ar->width; |
| 468 | pix->sizeimage = 2 * ar->width * ar->height; |
| 469 | /* Just a guess */ |
| 470 | pix->colorspace = V4L2_COLORSPACE_SMPTE170M; |
| 471 | return 0; |
| 472 | } |
| 473 | |
| 474 | static int ar_s_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *fmt) |
| 475 | { |
| 476 | struct ar *ar = video_drvdata(file); |
| 477 | struct v4l2_pix_format *pix = &fmt->fmt.pix; |
| 478 | int ret = ar_try_fmt_vid_cap(file, fh, fmt); |
| 479 | |
| 480 | if (ret) |
| 481 | return ret; |
| 482 | mutex_lock(&ar->lock); |
| 483 | ar->width = pix->width; |
| 484 | ar->height = pix->height; |
| 485 | if (ar->width == AR_WIDTH_VGA) { |
| 486 | ar->size = AR_SIZE_VGA; |
| 487 | ar->frame_bytes = AR_FRAME_BYTES_VGA; |
| 488 | ar->line_bytes = AR_LINE_BYTES_VGA; |
| 489 | if (vga_interlace) |
| 490 | ar->mode = AR_MODE_INTERLACE; |
| 491 | else |
| 492 | ar->mode = AR_MODE_NORMAL; |
| 493 | } else { |
| 494 | ar->size = AR_SIZE_QVGA; |
| 495 | ar->frame_bytes = AR_FRAME_BYTES_QVGA; |
| 496 | ar->line_bytes = AR_LINE_BYTES_QVGA; |
| 497 | ar->mode = AR_MODE_INTERLACE; |
| 498 | } |
| 499 | /* Ok we figured out what to use from our wide choice */ |
| 500 | mutex_unlock(&ar->lock); |
| 501 | return 0; |
| 502 | } |
| 503 | |
| 504 | static int ar_enum_fmt_vid_cap(struct file *file, void *fh, struct v4l2_fmtdesc *fmt) |
| 505 | { |
| 506 | static struct v4l2_fmtdesc formats[] = { |
| 507 | { 0, 0, 0, |
| 508 | "YUV 4:2:2 Planar", V4L2_PIX_FMT_YUV422P, |
| 509 | { 0, 0, 0, 0 } |
| 510 | }, |
| 511 | }; |
| 512 | enum v4l2_buf_type type = fmt->type; |
| 513 | |
| 514 | if (fmt->index > 0) |
| 515 | return -EINVAL; |
| 516 | |
| 517 | *fmt = formats[fmt->index]; |
| 518 | fmt->type = type; |
| 519 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 520 | } |
| 521 | |
| 522 | #if USE_INT |
| 523 | /* |
| 524 | * Interrupt handler |
| 525 | */ |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 526 | static void ar_interrupt(int irq, void *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 527 | { |
Hans Verkuil | b8e56b6f | 2010-03-29 16:05:33 -0300 | [diff] [blame] | 528 | struct ar *ar = dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 529 | unsigned int line_count; |
| 530 | unsigned int line_number; |
| 531 | unsigned int arvcr1; |
| 532 | |
| 533 | line_count = ar_inl(ARVHCOUNT); /* line number */ |
| 534 | if (ar->mode == AR_MODE_INTERLACE && ar->size == AR_SIZE_VGA) { |
| 535 | /* operations for interlace mode */ |
Hans Verkuil | 88f4423 | 2010-03-22 04:44:29 -0300 | [diff] [blame] | 536 | if (line_count < (AR_HEIGHT_VGA / 2)) /* even line */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 537 | line_number = (line_count << 1); |
Mauro Carvalho Chehab | d56410e | 2006-03-25 09:19:53 -0300 | [diff] [blame] | 538 | else /* odd line */ |
| 539 | line_number = |
Hans Verkuil | 88f4423 | 2010-03-22 04:44:29 -0300 | [diff] [blame] | 540 | (((line_count - (AR_HEIGHT_VGA / 2)) << 1) + 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 541 | } else { |
| 542 | line_number = line_count; |
| 543 | } |
| 544 | |
| 545 | if (line_number == 0) { |
| 546 | /* |
| 547 | * It is an interrupt for line 0. |
| 548 | * we have to start capture. |
| 549 | */ |
| 550 | disable_dma(); |
| 551 | #if 0 |
| 552 | ar_outl(ar->line_buff, M32R_DMA0CDA_PORTL); /* needless? */ |
| 553 | #endif |
| 554 | memcpy(ar->frame[0], ar->line_buff, ar->line_bytes); |
| 555 | #if 0 |
| 556 | ar_outl(0xa1861300, M32R_DMA0CR0_PORTL); |
| 557 | #endif |
| 558 | enable_dma(); |
| 559 | ar->start_capture = 1; /* during capture */ |
| 560 | return; |
| 561 | } |
| 562 | |
| 563 | if (ar->start_capture == 1 && line_number <= (ar->height - 1)) { |
| 564 | disable_dma(); |
| 565 | memcpy(ar->frame[line_number], ar->line_buff, ar->line_bytes); |
| 566 | |
| 567 | /* |
| 568 | * if captured all line of a frame, disable AR interrupt |
| 569 | * and wake a process up. |
| 570 | */ |
| 571 | if (line_number == (ar->height - 1)) { /* end of line */ |
| 572 | |
| 573 | ar->start_capture = 0; |
| 574 | |
| 575 | /* disable AR interrupt request */ |
| 576 | arvcr1 = ar_inl(ARVCR1); |
| 577 | arvcr1 &= ~ARVCR1_HIEN; /* clear int. flag */ |
| 578 | ar_outl(arvcr1, ARVCR1); /* disable */ |
| 579 | wake_up_interruptible(&ar->wait); |
| 580 | } else { |
| 581 | #if 0 |
| 582 | ar_outl(ar->line_buff, M32R_DMA0CDA_PORTL); |
| 583 | ar_outl(0xa1861300, M32R_DMA0CR0_PORTL); |
| 584 | #endif |
| 585 | enable_dma(); |
| 586 | } |
| 587 | } |
| 588 | } |
| 589 | #endif |
| 590 | |
| 591 | /* |
| 592 | * ar_initialize() |
| 593 | * ar_initialize() is called by video_register_device() and |
| 594 | * initializes AR LSI and peripherals. |
| 595 | * |
| 596 | * -1 is returned in all failures. |
| 597 | * 0 is returned in success. |
| 598 | * |
| 599 | */ |
Hans Verkuil | b8e56b6f | 2010-03-29 16:05:33 -0300 | [diff] [blame] | 600 | static int ar_initialize(struct ar *ar) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 601 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 602 | unsigned long cr = 0; |
Hans Verkuil | 88f4423 | 2010-03-22 04:44:29 -0300 | [diff] [blame] | 603 | int i, found = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 604 | |
| 605 | DEBUG(1, "ar_initialize:\n"); |
| 606 | |
| 607 | /* |
| 608 | * initialize AR LSI |
| 609 | */ |
| 610 | ar_outl(0, ARVCR0); /* assert reset of AR LSI */ |
| 611 | for (i = 0; i < 0x18; i++) /* wait for over 10 cycles @ 27MHz */ |
| 612 | cpu_relax(); |
| 613 | ar_outl(ARVCR0_RST, ARVCR0); /* negate reset of AR LSI (enable) */ |
| 614 | for (i = 0; i < 0x40d; i++) /* wait for over 420 cycles @ 27MHz */ |
| 615 | cpu_relax(); |
| 616 | |
| 617 | /* AR uses INT3 of CPU as interrupt pin. */ |
| 618 | ar_outl(ARINTSEL_INT3, ARINTSEL); |
| 619 | |
| 620 | if (ar->size == AR_SIZE_QVGA) |
| 621 | cr |= ARVCR1_QVGA; |
| 622 | if (ar->mode == AR_MODE_NORMAL) |
| 623 | cr |= ARVCR1_NORMAL; |
| 624 | ar_outl(cr, ARVCR1); |
| 625 | |
Mauro Carvalho Chehab | d56410e | 2006-03-25 09:19:53 -0300 | [diff] [blame] | 626 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 627 | * Initialize IIC so that CPU can communicate with AR LSI, |
| 628 | * and send boot commands to AR LSI. |
| 629 | */ |
| 630 | init_iic(); |
| 631 | |
| 632 | for (i = 0; i < 0x100000; i++) { /* > 0xa1d10, 56ms */ |
| 633 | if ((ar_inl(ARVCR0) & ARVCR0_VDS)) { /* VSYNC */ |
| 634 | found = 1; |
| 635 | break; |
| 636 | } |
| 637 | } |
| 638 | |
| 639 | if (found == 0) |
| 640 | return -ENODEV; |
| 641 | |
Hans Verkuil | b8e56b6f | 2010-03-29 16:05:33 -0300 | [diff] [blame] | 642 | v4l2_info(&ar->v4l2_dev, "Initializing "); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 643 | |
Hans Verkuil | 88f4423 | 2010-03-22 04:44:29 -0300 | [diff] [blame] | 644 | iic(2, 0x78, 0x11, 0x01, 0x00); /* start */ |
| 645 | iic(3, 0x78, 0x12, 0x00, 0x06); |
| 646 | iic(3, 0x78, 0x12, 0x12, 0x30); |
| 647 | iic(3, 0x78, 0x12, 0x15, 0x58); |
| 648 | iic(3, 0x78, 0x12, 0x17, 0x30); |
| 649 | printk(KERN_CONT "."); |
| 650 | iic(3, 0x78, 0x12, 0x1a, 0x97); |
| 651 | iic(3, 0x78, 0x12, 0x1b, 0xff); |
| 652 | iic(3, 0x78, 0x12, 0x1c, 0xff); |
| 653 | iic(3, 0x78, 0x12, 0x26, 0x10); |
| 654 | iic(3, 0x78, 0x12, 0x27, 0x00); |
| 655 | printk(KERN_CONT "."); |
| 656 | iic(2, 0x78, 0x34, 0x02, 0x00); |
| 657 | iic(2, 0x78, 0x7a, 0x10, 0x00); |
| 658 | iic(2, 0x78, 0x80, 0x39, 0x00); |
| 659 | iic(2, 0x78, 0x81, 0xe6, 0x00); |
| 660 | iic(2, 0x78, 0x8d, 0x00, 0x00); |
| 661 | printk(KERN_CONT "."); |
| 662 | iic(2, 0x78, 0x8e, 0x0c, 0x00); |
| 663 | iic(2, 0x78, 0x8f, 0x00, 0x00); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 664 | #if 0 |
Hans Verkuil | 88f4423 | 2010-03-22 04:44:29 -0300 | [diff] [blame] | 665 | iic(2, 0x78, 0x90, 0x00, 0x00); /* AWB on=1 off=0 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 666 | #endif |
Hans Verkuil | 88f4423 | 2010-03-22 04:44:29 -0300 | [diff] [blame] | 667 | iic(2, 0x78, 0x93, 0x01, 0x00); |
| 668 | iic(2, 0x78, 0x94, 0xcd, 0x00); |
| 669 | iic(2, 0x78, 0x95, 0x00, 0x00); |
| 670 | printk(KERN_CONT "."); |
| 671 | iic(2, 0x78, 0x96, 0xa0, 0x00); |
| 672 | iic(2, 0x78, 0x97, 0x00, 0x00); |
| 673 | iic(2, 0x78, 0x98, 0x60, 0x00); |
| 674 | iic(2, 0x78, 0x99, 0x01, 0x00); |
| 675 | iic(2, 0x78, 0x9a, 0x19, 0x00); |
| 676 | printk(KERN_CONT "."); |
| 677 | iic(2, 0x78, 0x9b, 0x02, 0x00); |
| 678 | iic(2, 0x78, 0x9c, 0xe8, 0x00); |
| 679 | iic(2, 0x78, 0x9d, 0x02, 0x00); |
| 680 | iic(2, 0x78, 0x9e, 0x2e, 0x00); |
| 681 | iic(2, 0x78, 0xb8, 0x78, 0x00); |
| 682 | iic(2, 0x78, 0xba, 0x05, 0x00); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 683 | #if 0 |
Hans Verkuil | 88f4423 | 2010-03-22 04:44:29 -0300 | [diff] [blame] | 684 | iic(2, 0x78, 0x83, 0x8c, 0x00); /* brightness */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 685 | #endif |
Hans Verkuil | 88f4423 | 2010-03-22 04:44:29 -0300 | [diff] [blame] | 686 | printk(KERN_CONT "."); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 687 | |
| 688 | /* color correction */ |
Hans Verkuil | 88f4423 | 2010-03-22 04:44:29 -0300 | [diff] [blame] | 689 | iic(3, 0x78, 0x49, 0x00, 0x95); /* a */ |
| 690 | iic(3, 0x78, 0x49, 0x01, 0x96); /* b */ |
| 691 | iic(3, 0x78, 0x49, 0x03, 0x85); /* c */ |
| 692 | iic(3, 0x78, 0x49, 0x04, 0x97); /* d */ |
| 693 | iic(3, 0x78, 0x49, 0x02, 0x7e); /* e(Lo) */ |
| 694 | iic(3, 0x78, 0x49, 0x05, 0xa4); /* f(Lo) */ |
| 695 | iic(3, 0x78, 0x49, 0x06, 0x04); /* e(Hi) */ |
| 696 | iic(3, 0x78, 0x49, 0x07, 0x04); /* e(Hi) */ |
| 697 | iic(2, 0x78, 0x48, 0x01, 0x00); /* on=1 off=0 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 698 | |
Hans Verkuil | 88f4423 | 2010-03-22 04:44:29 -0300 | [diff] [blame] | 699 | printk(KERN_CONT "."); |
| 700 | iic(2, 0x78, 0x11, 0x00, 0x00); /* end */ |
| 701 | printk(KERN_CONT " done\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 702 | return 0; |
| 703 | } |
| 704 | |
| 705 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 706 | /**************************************************************************** |
| 707 | * |
| 708 | * Video4Linux Module functions |
| 709 | * |
| 710 | ****************************************************************************/ |
Hans Verkuil | 7d43cd5 | 2008-08-23 05:31:47 -0300 | [diff] [blame] | 711 | |
Hans Verkuil | bec43661 | 2008-12-30 06:58:20 -0300 | [diff] [blame] | 712 | static const struct v4l2_file_operations ar_fops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 713 | .owner = THIS_MODULE, |
Hans Verkuil | c551af6 | 2012-05-08 16:50:33 -0300 | [diff] [blame] | 714 | .open = v4l2_fh_open, |
| 715 | .release = v4l2_fh_release, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 716 | .read = ar_read, |
Hans Verkuil | 61df3c9 | 2010-11-14 10:09:38 -0300 | [diff] [blame] | 717 | .unlocked_ioctl = video_ioctl2, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 718 | }; |
| 719 | |
Hans Verkuil | b8e56b6f | 2010-03-29 16:05:33 -0300 | [diff] [blame] | 720 | static const struct v4l2_ioctl_ops ar_ioctl_ops = { |
| 721 | .vidioc_querycap = ar_querycap, |
| 722 | .vidioc_g_input = ar_g_input, |
| 723 | .vidioc_s_input = ar_s_input, |
| 724 | .vidioc_enum_input = ar_enum_input, |
| 725 | .vidioc_enum_fmt_vid_cap = ar_enum_fmt_vid_cap, |
| 726 | .vidioc_g_fmt_vid_cap = ar_g_fmt_vid_cap, |
| 727 | .vidioc_s_fmt_vid_cap = ar_s_fmt_vid_cap, |
| 728 | .vidioc_try_fmt_vid_cap = ar_try_fmt_vid_cap, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 729 | }; |
| 730 | |
| 731 | #define ALIGN4(x) ((((int)(x)) & 0x3) == 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 732 | |
| 733 | static int __init ar_init(void) |
| 734 | { |
Hans Verkuil | b8e56b6f | 2010-03-29 16:05:33 -0300 | [diff] [blame] | 735 | struct ar *ar; |
| 736 | struct v4l2_device *v4l2_dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 737 | int ret; |
| 738 | int i; |
| 739 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 740 | ar = &ardev; |
Hans Verkuil | b8e56b6f | 2010-03-29 16:05:33 -0300 | [diff] [blame] | 741 | v4l2_dev = &ar->v4l2_dev; |
| 742 | strlcpy(v4l2_dev->name, "arv", sizeof(v4l2_dev->name)); |
| 743 | v4l2_info(v4l2_dev, "Colour AR VGA driver %s\n", VERSION); |
| 744 | |
| 745 | ret = v4l2_device_register(NULL, v4l2_dev); |
| 746 | if (ret < 0) { |
| 747 | v4l2_err(v4l2_dev, "Could not register v4l2_device\n"); |
| 748 | return ret; |
| 749 | } |
| 750 | ret = -EIO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 751 | |
| 752 | #if USE_INT |
| 753 | /* allocate a DMA buffer for 1 line. */ |
| 754 | ar->line_buff = kmalloc(MAX_AR_LINE_BYTES, GFP_KERNEL | GFP_DMA); |
Hans Verkuil | 88f4423 | 2010-03-22 04:44:29 -0300 | [diff] [blame] | 755 | if (ar->line_buff == NULL || !ALIGN4(ar->line_buff)) { |
Hans Verkuil | b8e56b6f | 2010-03-29 16:05:33 -0300 | [diff] [blame] | 756 | v4l2_err(v4l2_dev, "buffer allocation failed for DMA.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 757 | ret = -ENOMEM; |
| 758 | goto out_end; |
| 759 | } |
| 760 | #endif |
| 761 | /* allocate buffers for a frame */ |
| 762 | for (i = 0; i < MAX_AR_HEIGHT; i++) { |
| 763 | ar->frame[i] = kmalloc(MAX_AR_LINE_BYTES, GFP_KERNEL); |
Hans Verkuil | 88f4423 | 2010-03-22 04:44:29 -0300 | [diff] [blame] | 764 | if (ar->frame[i] == NULL || !ALIGN4(ar->frame[i])) { |
Hans Verkuil | b8e56b6f | 2010-03-29 16:05:33 -0300 | [diff] [blame] | 765 | v4l2_err(v4l2_dev, "buffer allocation failed for frame.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 766 | ret = -ENOMEM; |
| 767 | goto out_line_buff; |
| 768 | } |
| 769 | } |
| 770 | |
Hans Verkuil | b8e56b6f | 2010-03-29 16:05:33 -0300 | [diff] [blame] | 771 | strlcpy(ar->vdev.name, "Colour AR VGA", sizeof(ar->vdev.name)); |
| 772 | ar->vdev.v4l2_dev = v4l2_dev; |
| 773 | ar->vdev.fops = &ar_fops; |
| 774 | ar->vdev.ioctl_ops = &ar_ioctl_ops; |
| 775 | ar->vdev.release = video_device_release_empty; |
| 776 | video_set_drvdata(&ar->vdev, ar); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 777 | |
| 778 | if (vga) { |
| 779 | ar->width = AR_WIDTH_VGA; |
| 780 | ar->height = AR_HEIGHT_VGA; |
| 781 | ar->size = AR_SIZE_VGA; |
| 782 | ar->frame_bytes = AR_FRAME_BYTES_VGA; |
| 783 | ar->line_bytes = AR_LINE_BYTES_VGA; |
| 784 | if (vga_interlace) |
| 785 | ar->mode = AR_MODE_INTERLACE; |
| 786 | else |
| 787 | ar->mode = AR_MODE_NORMAL; |
| 788 | } else { |
| 789 | ar->width = AR_WIDTH_QVGA; |
| 790 | ar->height = AR_HEIGHT_QVGA; |
| 791 | ar->size = AR_SIZE_QVGA; |
| 792 | ar->frame_bytes = AR_FRAME_BYTES_QVGA; |
| 793 | ar->line_bytes = AR_LINE_BYTES_QVGA; |
| 794 | ar->mode = AR_MODE_INTERLACE; |
| 795 | } |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 796 | mutex_init(&ar->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 797 | init_waitqueue_head(&ar->wait); |
| 798 | |
| 799 | #if USE_INT |
| 800 | if (request_irq(M32R_IRQ_INT3, ar_interrupt, 0, "arv", ar)) { |
Hans Verkuil | b8e56b6f | 2010-03-29 16:05:33 -0300 | [diff] [blame] | 801 | v4l2_err("request_irq(%d) failed.\n", M32R_IRQ_INT3); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 802 | ret = -EIO; |
| 803 | goto out_irq; |
| 804 | } |
| 805 | #endif |
| 806 | |
Hans Verkuil | b8e56b6f | 2010-03-29 16:05:33 -0300 | [diff] [blame] | 807 | if (ar_initialize(ar) != 0) { |
| 808 | v4l2_err(v4l2_dev, "M64278 not found.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 809 | ret = -ENODEV; |
| 810 | goto out_dev; |
| 811 | } |
| 812 | |
| 813 | /* |
| 814 | * ok, we can initialize h/w according to parameters, |
| 815 | * so register video device as a frame grabber type. |
| 816 | * device is named "video[0-64]". |
| 817 | * video_register_device() initializes h/w using ar_initialize(). |
Mauro Carvalho Chehab | d56410e | 2006-03-25 09:19:53 -0300 | [diff] [blame] | 818 | */ |
Hans Verkuil | b8e56b6f | 2010-03-29 16:05:33 -0300 | [diff] [blame] | 819 | if (video_register_device(&ar->vdev, VFL_TYPE_GRABBER, video_nr) != 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 820 | /* return -1, -ENFILE(full) or others */ |
Hans Verkuil | b8e56b6f | 2010-03-29 16:05:33 -0300 | [diff] [blame] | 821 | v4l2_err(v4l2_dev, "register video (Colour AR) failed.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 822 | ret = -ENODEV; |
| 823 | goto out_dev; |
| 824 | } |
| 825 | |
Hans Verkuil | b8e56b6f | 2010-03-29 16:05:33 -0300 | [diff] [blame] | 826 | v4l2_info(v4l2_dev, "%s: Found M64278 VGA (IRQ %d, Freq %dMHz).\n", |
| 827 | video_device_node_name(&ar->vdev), M32R_IRQ_INT3, freq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 828 | |
| 829 | return 0; |
| 830 | |
| 831 | out_dev: |
| 832 | #if USE_INT |
| 833 | free_irq(M32R_IRQ_INT3, ar); |
| 834 | |
| 835 | out_irq: |
| 836 | #endif |
Jesper Juhl | 2ea7533 | 2005-11-07 01:01:31 -0800 | [diff] [blame] | 837 | for (i = 0; i < MAX_AR_HEIGHT; i++) |
| 838 | kfree(ar->frame[i]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 839 | |
| 840 | out_line_buff: |
| 841 | #if USE_INT |
| 842 | kfree(ar->line_buff); |
| 843 | |
| 844 | out_end: |
| 845 | #endif |
Hans Verkuil | b8e56b6f | 2010-03-29 16:05:33 -0300 | [diff] [blame] | 846 | v4l2_device_unregister(&ar->v4l2_dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 847 | return ret; |
| 848 | } |
| 849 | |
| 850 | |
| 851 | static int __init ar_init_module(void) |
| 852 | { |
| 853 | freq = (boot_cpu_data.bus_clock / 1000000); |
Hans Verkuil | 88f4423 | 2010-03-22 04:44:29 -0300 | [diff] [blame] | 854 | printk(KERN_INFO "arv: Bus clock %d\n", freq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 855 | if (freq != 50 && freq != 75) |
| 856 | freq = DEFAULT_FREQ; |
| 857 | return ar_init(); |
| 858 | } |
| 859 | |
| 860 | static void __exit ar_cleanup_module(void) |
| 861 | { |
Hans Verkuil | b8e56b6f | 2010-03-29 16:05:33 -0300 | [diff] [blame] | 862 | struct ar *ar; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 863 | int i; |
| 864 | |
| 865 | ar = &ardev; |
Hans Verkuil | b8e56b6f | 2010-03-29 16:05:33 -0300 | [diff] [blame] | 866 | video_unregister_device(&ar->vdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 867 | #if USE_INT |
| 868 | free_irq(M32R_IRQ_INT3, ar); |
| 869 | #endif |
Jesper Juhl | 2ea7533 | 2005-11-07 01:01:31 -0800 | [diff] [blame] | 870 | for (i = 0; i < MAX_AR_HEIGHT; i++) |
| 871 | kfree(ar->frame[i]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 872 | #if USE_INT |
| 873 | kfree(ar->line_buff); |
| 874 | #endif |
Hans Verkuil | b8e56b6f | 2010-03-29 16:05:33 -0300 | [diff] [blame] | 875 | v4l2_device_unregister(&ar->v4l2_dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 876 | } |
| 877 | |
| 878 | module_init(ar_init_module); |
| 879 | module_exit(ar_cleanup_module); |
| 880 | |
| 881 | MODULE_AUTHOR("Takeo Takahashi <takahashi.takeo@renesas.com>"); |
| 882 | MODULE_DESCRIPTION("Colour AR M64278(VGA) for Video4Linux"); |
| 883 | MODULE_LICENSE("GPL"); |
Mauro Carvalho Chehab | 1990d50 | 2011-06-24 14:45:49 -0300 | [diff] [blame] | 884 | MODULE_VERSION(VERSION); |