1 /* 2 * Driver for the Conexant CX25821 PCIe bridge 3 * 4 * Copyright (C) 2009 Conexant Systems Inc. 5 * Authors <shu.lin@conexant.com>, <hiep.huynh@conexant.com> 6 * Based on Steven Toth <stoth@linuxtv.org> cx23885 driver 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; either version 2 of the License, or 11 * (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * 17 * GNU General Public License for more details. 18 */ 19 20 #ifndef CX25821_H_ 21 #define CX25821_H_ 22 23 #include <linux/pci.h> 24 #include <linux/i2c.h> 25 #include <linux/interrupt.h> 26 #include <linux/delay.h> 27 #include <linux/sched.h> 28 #include <linux/kdev_t.h> 29 30 #include <media/v4l2-common.h> 31 #include <media/v4l2-device.h> 32 #include <media/v4l2-ctrls.h> 33 #include <media/videobuf2-v4l2.h> 34 #include <media/videobuf2-dma-sg.h> 35 36 #include "cx25821-reg.h" 37 #include "cx25821-medusa-reg.h" 38 #include "cx25821-sram.h" 39 #include "cx25821-audio.h" 40 41 #include <linux/version.h> 42 #include <linux/mutex.h> 43 44 #define UNSET (-1U) 45 #define NO_SYNC_LINE (-1U) 46 47 #define CX25821_MAXBOARDS 2 48 49 #define LINE_SIZE_D1 1440 50 51 /* Number of decoders and encoders */ 52 #define MAX_DECODERS 8 53 #define MAX_ENCODERS 2 54 #define QUAD_DECODERS 4 55 #define MAX_CAMERAS 16 56 57 /* Max number of inputs by card */ 58 #define MAX_CX25821_INPUT 8 59 #define RESOURCE_VIDEO0 1 60 #define RESOURCE_VIDEO1 2 61 #define RESOURCE_VIDEO2 4 62 #define RESOURCE_VIDEO3 8 63 #define RESOURCE_VIDEO4 16 64 #define RESOURCE_VIDEO5 32 65 #define RESOURCE_VIDEO6 64 66 #define RESOURCE_VIDEO7 128 67 #define RESOURCE_VIDEO8 256 68 #define RESOURCE_VIDEO9 512 69 #define RESOURCE_VIDEO10 1024 70 #define RESOURCE_VIDEO11 2048 71 72 #define BUFFER_TIMEOUT (HZ) /* 0.5 seconds */ 73 74 #define UNKNOWN_BOARD 0 75 #define CX25821_BOARD 1 76 77 /* Currently supported by the driver */ 78 #define CX25821_NORMS (\ 79 V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_JP | V4L2_STD_NTSC_M_KR | \ 80 V4L2_STD_PAL_BG | V4L2_STD_PAL_DK | V4L2_STD_PAL_I | \ 81 V4L2_STD_PAL_M | V4L2_STD_PAL_N | V4L2_STD_PAL_H | \ 82 V4L2_STD_PAL_Nc) 83 84 #define CX25821_BOARD_CONEXANT_ATHENA10 1 85 #define MAX_VID_CHANNEL_NUM 12 86 87 /* 88 * Maximum capture-only channels. This can go away once video/audio output 89 * is fully supported in this driver. 90 */ 91 #define MAX_VID_CAP_CHANNEL_NUM 10 92 93 #define VID_CHANNEL_NUM 8 94 95 struct cx25821_fmt { 96 char *name; 97 u32 fourcc; /* v4l2 format id */ 98 int depth; 99 int flags; 100 u32 cxformat; 101 }; 102 103 struct cx25821_tvnorm { 104 char *name; 105 v4l2_std_id id; 106 u32 cxiformat; 107 u32 cxoformat; 108 }; 109 110 enum cx25821_src_sel_type { 111 CX25821_SRC_SEL_EXT_656_VIDEO = 0, 112 CX25821_SRC_SEL_PARALLEL_MPEG_VIDEO 113 }; 114 115 struct cx25821_riscmem { 116 unsigned int size; 117 __le32 *cpu; 118 __le32 *jmp; 119 dma_addr_t dma; 120 }; 121 122 /* buffer for one video frame */ 123 struct cx25821_buffer { 124 /* common v4l buffer stuff -- must be first */ 125 struct vb2_v4l2_buffer vb; 126 struct list_head queue; 127 128 /* cx25821 specific */ 129 unsigned int bpl; 130 struct cx25821_riscmem risc; 131 const struct cx25821_fmt *fmt; 132 }; 133 134 enum port { 135 CX25821_UNDEFINED = 0, 136 CX25821_RAW, 137 CX25821_264 138 }; 139 140 struct cx25821_board { 141 const char *name; 142 enum port porta; 143 enum port portb; 144 enum port portc; 145 146 u32 clk_freq; 147 }; 148 149 struct cx25821_i2c { 150 struct cx25821_dev *dev; 151 152 int nr; 153 154 /* i2c i/o */ 155 struct i2c_adapter i2c_adap; 156 struct i2c_client i2c_client; 157 u32 i2c_rc; 158 159 /* cx25821 registers used for raw addess */ 160 u32 i2c_period; 161 u32 reg_ctrl; 162 u32 reg_stat; 163 u32 reg_addr; 164 u32 reg_rdata; 165 u32 reg_wdata; 166 }; 167 168 struct cx25821_dmaqueue { 169 struct list_head active; 170 u32 count; 171 }; 172 173 struct cx25821_dev; 174 175 struct cx25821_channel; 176 177 struct cx25821_video_out_data { 178 struct cx25821_channel *chan; 179 int _line_size; 180 int _prog_cnt; 181 int _pixel_format; 182 int _is_first_frame; 183 int _is_running; 184 int _file_status; 185 int _lines_count; 186 int _frame_count; 187 unsigned int _risc_size; 188 189 __le32 *_dma_virt_start_addr; 190 __le32 *_dma_virt_addr; 191 dma_addr_t _dma_phys_addr; 192 dma_addr_t _dma_phys_start_addr; 193 194 unsigned int _data_buf_size; 195 __le32 *_data_buf_virt_addr; 196 dma_addr_t _data_buf_phys_addr; 197 198 u32 upstream_riscbuf_size; 199 u32 upstream_databuf_size; 200 int is_60hz; 201 int _frame_index; 202 int cur_frame_index; 203 int curpos; 204 wait_queue_head_t waitq; 205 }; 206 207 struct cx25821_channel { 208 unsigned id; 209 struct cx25821_dev *dev; 210 211 struct v4l2_ctrl_handler hdl; 212 213 struct video_device vdev; 214 struct cx25821_dmaqueue dma_vidq; 215 struct vb2_queue vidq; 216 217 const struct sram_channel *sram_channels; 218 219 const struct cx25821_fmt *fmt; 220 unsigned field; 221 unsigned int width, height; 222 int pixel_formats; 223 int use_cif_resolution; 224 int cif_width; 225 226 /* video output data for the video output channel */ 227 struct cx25821_video_out_data *out; 228 }; 229 230 struct snd_card; 231 232 struct cx25821_dev { 233 struct v4l2_device v4l2_dev; 234 235 /* pci stuff */ 236 struct pci_dev *pci; 237 unsigned char pci_rev, pci_lat; 238 int pci_bus, pci_slot; 239 u32 base_io_addr; 240 u32 __iomem *lmmio; 241 u8 __iomem *bmmio; 242 int pci_irqmask; 243 int hwrevision; 244 /* used by cx25821-alsa */ 245 struct snd_card *card; 246 247 u32 clk_freq; 248 249 /* I2C adapters: Master 1 & 2 (External) & Master 3 (Internal only) */ 250 struct cx25821_i2c i2c_bus[3]; 251 252 int nr; 253 struct mutex lock; 254 255 struct cx25821_channel channels[MAX_VID_CHANNEL_NUM]; 256 257 /* board details */ 258 unsigned int board; 259 char name[32]; 260 261 /* Analog video */ 262 unsigned int input; 263 v4l2_std_id tvnorm; 264 unsigned short _max_num_decoders; 265 266 /* Analog Audio Upstream */ 267 int _audio_is_running; 268 int _audiopixel_format; 269 int _is_first_audio_frame; 270 int _audiofile_status; 271 int _audio_lines_count; 272 int _audioframe_count; 273 int _audio_upstream_channel; 274 int _last_index_irq; /* The last interrupt index processed. */ 275 276 __le32 *_risc_audio_jmp_addr; 277 __le32 *_risc_virt_start_addr; 278 __le32 *_risc_virt_addr; 279 dma_addr_t _risc_phys_addr; 280 dma_addr_t _risc_phys_start_addr; 281 282 unsigned int _audiorisc_size; 283 unsigned int _audiodata_buf_size; 284 __le32 *_audiodata_buf_virt_addr; 285 dma_addr_t _audiodata_buf_phys_addr; 286 char *_audiofilename; 287 u32 audio_upstream_riscbuf_size; 288 u32 audio_upstream_databuf_size; 289 int _audioframe_index; 290 struct work_struct _audio_work_entry; 291 char *input_audiofilename; 292 293 /* V4l */ 294 spinlock_t slock; 295 296 /* Video Upstream */ 297 struct cx25821_video_out_data vid_out_data[2]; 298 }; 299 300 static inline struct cx25821_dev *get_cx25821(struct v4l2_device *v4l2_dev) 301 { 302 return container_of(v4l2_dev, struct cx25821_dev, v4l2_dev); 303 } 304 305 extern struct cx25821_board cx25821_boards[]; 306 307 #define SRAM_CH00 0 /* Video A */ 308 #define SRAM_CH01 1 /* Video B */ 309 #define SRAM_CH02 2 /* Video C */ 310 #define SRAM_CH03 3 /* Video D */ 311 #define SRAM_CH04 4 /* Video E */ 312 #define SRAM_CH05 5 /* Video F */ 313 #define SRAM_CH06 6 /* Video G */ 314 #define SRAM_CH07 7 /* Video H */ 315 316 #define SRAM_CH08 8 /* Audio A */ 317 #define SRAM_CH09 9 /* Video Upstream I */ 318 #define SRAM_CH10 10 /* Video Upstream J */ 319 #define SRAM_CH11 11 /* Audio Upstream AUD_CHANNEL_B */ 320 321 #define VID_UPSTREAM_SRAM_CHANNEL_I SRAM_CH09 322 #define VID_UPSTREAM_SRAM_CHANNEL_J SRAM_CH10 323 #define AUDIO_UPSTREAM_SRAM_CHANNEL_B SRAM_CH11 324 325 struct sram_channel { 326 char *name; 327 u32 i; 328 u32 cmds_start; 329 u32 ctrl_start; 330 u32 cdt; 331 u32 fifo_start; 332 u32 fifo_size; 333 u32 ptr1_reg; 334 u32 ptr2_reg; 335 u32 cnt1_reg; 336 u32 cnt2_reg; 337 u32 int_msk; 338 u32 int_stat; 339 u32 int_mstat; 340 u32 dma_ctl; 341 u32 gpcnt_ctl; 342 u32 gpcnt; 343 u32 aud_length; 344 u32 aud_cfg; 345 u32 fld_aud_fifo_en; 346 u32 fld_aud_risc_en; 347 348 /* For Upstream Video */ 349 u32 vid_fmt_ctl; 350 u32 vid_active_ctl1; 351 u32 vid_active_ctl2; 352 u32 vid_cdt_size; 353 354 u32 vip_ctl; 355 u32 pix_frmt; 356 u32 jumponly; 357 u32 irq_bit; 358 }; 359 360 extern const struct sram_channel cx25821_sram_channels[]; 361 362 #define cx_read(reg) readl(dev->lmmio + ((reg)>>2)) 363 #define cx_write(reg, value) writel((value), dev->lmmio + ((reg)>>2)) 364 365 #define cx_andor(reg, mask, value) \ 366 writel((readl(dev->lmmio+((reg)>>2)) & ~(mask)) |\ 367 ((value) & (mask)), dev->lmmio+((reg)>>2)) 368 369 #define cx_set(reg, bit) cx_andor((reg), (bit), (bit)) 370 #define cx_clear(reg, bit) cx_andor((reg), (bit), 0) 371 372 #define Set_GPIO_Bit(Bit) (1 << Bit) 373 #define Clear_GPIO_Bit(Bit) (~(1 << Bit)) 374 375 #define CX25821_ERR(fmt, args...) \ 376 pr_err("(%d): " fmt, dev->board, ##args) 377 #define CX25821_WARN(fmt, args...) \ 378 pr_warn("(%d): " fmt, dev->board, ##args) 379 #define CX25821_INFO(fmt, args...) \ 380 pr_info("(%d): " fmt, dev->board, ##args) 381 382 extern int cx25821_i2c_register(struct cx25821_i2c *bus); 383 extern int cx25821_i2c_read(struct cx25821_i2c *bus, u16 reg_addr, int *value); 384 extern int cx25821_i2c_write(struct cx25821_i2c *bus, u16 reg_addr, int value); 385 extern int cx25821_i2c_unregister(struct cx25821_i2c *bus); 386 extern void cx25821_gpio_init(struct cx25821_dev *dev); 387 extern void cx25821_set_gpiopin_direction(struct cx25821_dev *dev, 388 int pin_number, int pin_logic_value); 389 390 extern int medusa_video_init(struct cx25821_dev *dev); 391 extern int medusa_set_videostandard(struct cx25821_dev *dev); 392 extern void medusa_set_resolution(struct cx25821_dev *dev, int width, 393 int decoder_select); 394 extern int medusa_set_brightness(struct cx25821_dev *dev, int brightness, 395 int decoder); 396 extern int medusa_set_contrast(struct cx25821_dev *dev, int contrast, 397 int decoder); 398 extern int medusa_set_hue(struct cx25821_dev *dev, int hue, int decoder); 399 extern int medusa_set_saturation(struct cx25821_dev *dev, int saturation, 400 int decoder); 401 402 extern int cx25821_sram_channel_setup(struct cx25821_dev *dev, 403 const struct sram_channel *ch, unsigned int bpl, 404 u32 risc); 405 406 extern int cx25821_riscmem_alloc(struct pci_dev *pci, 407 struct cx25821_riscmem *risc, 408 unsigned int size); 409 extern int cx25821_risc_buffer(struct pci_dev *pci, struct cx25821_riscmem *risc, 410 struct scatterlist *sglist, 411 unsigned int top_offset, 412 unsigned int bottom_offset, 413 unsigned int bpl, 414 unsigned int padding, unsigned int lines); 415 extern int cx25821_risc_databuffer_audio(struct pci_dev *pci, 416 struct cx25821_riscmem *risc, 417 struct scatterlist *sglist, 418 unsigned int bpl, 419 unsigned int lines, unsigned int lpi); 420 extern void cx25821_free_buffer(struct cx25821_dev *dev, 421 struct cx25821_buffer *buf); 422 extern void cx25821_sram_channel_dump(struct cx25821_dev *dev, 423 const struct sram_channel *ch); 424 extern void cx25821_sram_channel_dump_audio(struct cx25821_dev *dev, 425 const struct sram_channel *ch); 426 427 extern struct cx25821_dev *cx25821_dev_get(struct pci_dev *pci); 428 extern void cx25821_print_irqbits(char *name, char *tag, char **strings, 429 int len, u32 bits, u32 mask); 430 extern void cx25821_dev_unregister(struct cx25821_dev *dev); 431 extern int cx25821_sram_channel_setup_audio(struct cx25821_dev *dev, 432 const struct sram_channel *ch, 433 unsigned int bpl, u32 risc); 434 435 extern int cx25821_vidupstream_init(struct cx25821_channel *chan, int pixel_format); 436 extern int cx25821_audio_upstream_init(struct cx25821_dev *dev, 437 int channel_select); 438 extern int cx25821_write_frame(struct cx25821_channel *chan, 439 const char __user *data, size_t count); 440 extern void cx25821_free_mem_upstream(struct cx25821_channel *chan); 441 extern void cx25821_free_mem_upstream_audio(struct cx25821_dev *dev); 442 extern void cx25821_stop_upstream_video(struct cx25821_channel *chan); 443 extern void cx25821_stop_upstream_audio(struct cx25821_dev *dev); 444 extern int cx25821_sram_channel_setup_upstream(struct cx25821_dev *dev, 445 const struct sram_channel *ch, 446 unsigned int bpl, u32 risc); 447 extern void cx25821_set_pixel_format(struct cx25821_dev *dev, int channel, 448 u32 format); 449 450 #endif 451