drivers/media/pci/cx25821/cx25821.h

   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