linux/drivers/media/pci/cx25821/cx25821.h
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   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 *  You should have received a copy of the GNU General Public License
  20 *  along with this program; if not, write to the Free Software
  21 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  22 */
  23
  24#ifndef CX25821_H_
  25#define CX25821_H_
  26
  27#include <linux/pci.h>
  28#include <linux/i2c.h>
  29#include <linux/interrupt.h>
  30#include <linux/delay.h>
  31#include <linux/sched.h>
  32#include <linux/kdev_t.h>
  33
  34#include <media/v4l2-common.h>
  35#include <media/v4l2-device.h>
  36#include <media/v4l2-ctrls.h>
  37#include <media/videobuf2-v4l2.h>
  38#include <media/videobuf2-dma-sg.h>
  39
  40#include "cx25821-reg.h"
  41#include "cx25821-medusa-reg.h"
  42#include "cx25821-sram.h"
  43#include "cx25821-audio.h"
  44
  45#include <linux/version.h>
  46#include <linux/mutex.h>
  47
  48#define CX25821_VERSION_CODE KERNEL_VERSION(0, 0, 106)
  49
  50#define UNSET (-1U)
  51#define NO_SYNC_LINE (-1U)
  52
  53#define CX25821_MAXBOARDS 2
  54
  55#define LINE_SIZE_D1    1440
  56
  57/* Number of decoders and encoders */
  58#define MAX_DECODERS            8
  59#define MAX_ENCODERS            2
  60#define QUAD_DECODERS           4
  61#define MAX_CAMERAS             16
  62
  63/* Max number of inputs by card */
  64#define MAX_CX25821_INPUT     8
  65#define RESOURCE_VIDEO0       1
  66#define RESOURCE_VIDEO1       2
  67#define RESOURCE_VIDEO2       4
  68#define RESOURCE_VIDEO3       8
  69#define RESOURCE_VIDEO4       16
  70#define RESOURCE_VIDEO5       32
  71#define RESOURCE_VIDEO6       64
  72#define RESOURCE_VIDEO7       128
  73#define RESOURCE_VIDEO8       256
  74#define RESOURCE_VIDEO9       512
  75#define RESOURCE_VIDEO10      1024
  76#define RESOURCE_VIDEO11      2048
  77
  78#define BUFFER_TIMEOUT     (HZ) /* 0.5 seconds */
  79
  80#define UNKNOWN_BOARD        0
  81#define CX25821_BOARD        1
  82
  83/* Currently supported by the driver */
  84#define CX25821_NORMS (\
  85        V4L2_STD_NTSC_M |  V4L2_STD_NTSC_M_JP | V4L2_STD_NTSC_M_KR | \
  86        V4L2_STD_PAL_BG |  V4L2_STD_PAL_DK    |  V4L2_STD_PAL_I    | \
  87        V4L2_STD_PAL_M  |  V4L2_STD_PAL_N     |  V4L2_STD_PAL_H    | \
  88        V4L2_STD_PAL_Nc)
  89
  90#define CX25821_BOARD_CONEXANT_ATHENA10 1
  91#define MAX_VID_CHANNEL_NUM     12
  92
  93/*
  94 * Maximum capture-only channels. This can go away once video/audio output
  95 * is fully supported in this driver.
  96 */
  97#define MAX_VID_CAP_CHANNEL_NUM     10
  98
  99#define VID_CHANNEL_NUM 8
 100
 101struct cx25821_fmt {
 102        char *name;
 103        u32 fourcc;             /* v4l2 format id */
 104        int depth;
 105        int flags;
 106        u32 cxformat;
 107};
 108
 109struct cx25821_tvnorm {
 110        char *name;
 111        v4l2_std_id id;
 112        u32 cxiformat;
 113        u32 cxoformat;
 114};
 115
 116enum cx25821_src_sel_type {
 117        CX25821_SRC_SEL_EXT_656_VIDEO = 0,
 118        CX25821_SRC_SEL_PARALLEL_MPEG_VIDEO
 119};
 120
 121struct cx25821_riscmem {
 122        unsigned int   size;
 123        __le32         *cpu;
 124        __le32         *jmp;
 125        dma_addr_t     dma;
 126};
 127
 128/* buffer for one video frame */
 129struct cx25821_buffer {
 130        /* common v4l buffer stuff -- must be first */
 131        struct vb2_v4l2_buffer vb;
 132        struct list_head queue;
 133
 134        /* cx25821 specific */
 135        unsigned int bpl;
 136        struct cx25821_riscmem risc;
 137        const struct cx25821_fmt *fmt;
 138};
 139
 140enum port {
 141        CX25821_UNDEFINED = 0,
 142        CX25821_RAW,
 143        CX25821_264
 144};
 145
 146struct cx25821_board {
 147        const char *name;
 148        enum port porta;
 149        enum port portb;
 150        enum port portc;
 151
 152        u32 clk_freq;
 153};
 154
 155struct cx25821_i2c {
 156        struct cx25821_dev *dev;
 157
 158        int nr;
 159
 160        /* i2c i/o */
 161        struct i2c_adapter i2c_adap;
 162        struct i2c_client i2c_client;
 163        u32 i2c_rc;
 164
 165        /* cx25821 registers used for raw addess */
 166        u32 i2c_period;
 167        u32 reg_ctrl;
 168        u32 reg_stat;
 169        u32 reg_addr;
 170        u32 reg_rdata;
 171        u32 reg_wdata;
 172};
 173
 174struct cx25821_dmaqueue {
 175        struct list_head active;
 176        u32 count;
 177};
 178
 179struct cx25821_dev;
 180
 181struct cx25821_channel;
 182
 183struct cx25821_video_out_data {
 184        struct cx25821_channel *chan;
 185        int _line_size;
 186        int _prog_cnt;
 187        int _pixel_format;
 188        int _is_first_frame;
 189        int _is_running;
 190        int _file_status;
 191        int _lines_count;
 192        int _frame_count;
 193        unsigned int _risc_size;
 194
 195        __le32 *_dma_virt_start_addr;
 196        __le32 *_dma_virt_addr;
 197        dma_addr_t _dma_phys_addr;
 198        dma_addr_t _dma_phys_start_addr;
 199
 200        unsigned int _data_buf_size;
 201        __le32 *_data_buf_virt_addr;
 202        dma_addr_t _data_buf_phys_addr;
 203
 204        u32 upstream_riscbuf_size;
 205        u32 upstream_databuf_size;
 206        int is_60hz;
 207        int _frame_index;
 208        int cur_frame_index;
 209        int curpos;
 210        wait_queue_head_t waitq;
 211};
 212
 213struct cx25821_channel {
 214        unsigned id;
 215        struct cx25821_dev *dev;
 216
 217        struct v4l2_ctrl_handler hdl;
 218
 219        struct video_device vdev;
 220        struct cx25821_dmaqueue dma_vidq;
 221        struct vb2_queue vidq;
 222
 223        const struct sram_channel *sram_channels;
 224
 225        const struct cx25821_fmt *fmt;
 226        unsigned field;
 227        unsigned int width, height;
 228        int pixel_formats;
 229        int use_cif_resolution;
 230        int cif_width;
 231
 232        /* video output data for the video output channel */
 233        struct cx25821_video_out_data *out;
 234};
 235
 236struct snd_card;
 237
 238struct cx25821_dev {
 239        struct v4l2_device v4l2_dev;
 240
 241        /* pci stuff */
 242        struct pci_dev *pci;
 243        unsigned char pci_rev, pci_lat;
 244        int pci_bus, pci_slot;
 245        u32 base_io_addr;
 246        u32 __iomem *lmmio;
 247        u8 __iomem *bmmio;
 248        int pci_irqmask;
 249        int hwrevision;
 250        /* used by cx25821-alsa */
 251        struct snd_card *card;
 252
 253        u32 clk_freq;
 254
 255        /* I2C adapters: Master 1 & 2 (External) & Master 3 (Internal only) */
 256        struct cx25821_i2c i2c_bus[3];
 257
 258        int nr;
 259        struct mutex lock;
 260
 261        struct cx25821_channel channels[MAX_VID_CHANNEL_NUM];
 262
 263        /* board details */
 264        unsigned int board;
 265        char name[32];
 266
 267        /* Analog video */
 268        unsigned int input;
 269        v4l2_std_id tvnorm;
 270        unsigned short _max_num_decoders;
 271
 272        /* Analog Audio Upstream */
 273        int _audio_is_running;
 274        int _audiopixel_format;
 275        int _is_first_audio_frame;
 276        int _audiofile_status;
 277        int _audio_lines_count;
 278        int _audioframe_count;
 279        int _audio_upstream_channel;
 280        int _last_index_irq;    /* The last interrupt index processed. */
 281
 282        __le32 *_risc_audio_jmp_addr;
 283        __le32 *_risc_virt_start_addr;
 284        __le32 *_risc_virt_addr;
 285        dma_addr_t _risc_phys_addr;
 286        dma_addr_t _risc_phys_start_addr;
 287
 288        unsigned int _audiorisc_size;
 289        unsigned int _audiodata_buf_size;
 290        __le32 *_audiodata_buf_virt_addr;
 291        dma_addr_t _audiodata_buf_phys_addr;
 292        char *_audiofilename;
 293        u32 audio_upstream_riscbuf_size;
 294        u32 audio_upstream_databuf_size;
 295        int _audioframe_index;
 296        struct work_struct _audio_work_entry;
 297        char *input_audiofilename;
 298
 299        /* V4l */
 300        spinlock_t slock;
 301
 302        /* Video Upstream */
 303        struct cx25821_video_out_data vid_out_data[2];
 304};
 305
 306static inline struct cx25821_dev *get_cx25821(struct v4l2_device *v4l2_dev)
 307{
 308        return container_of(v4l2_dev, struct cx25821_dev, v4l2_dev);
 309}
 310
 311extern struct cx25821_board cx25821_boards[];
 312
 313#define SRAM_CH00  0            /* Video A */
 314#define SRAM_CH01  1            /* Video B */
 315#define SRAM_CH02  2            /* Video C */
 316#define SRAM_CH03  3            /* Video D */
 317#define SRAM_CH04  4            /* Video E */
 318#define SRAM_CH05  5            /* Video F */
 319#define SRAM_CH06  6            /* Video G */
 320#define SRAM_CH07  7            /* Video H */
 321
 322#define SRAM_CH08  8            /* Audio A */
 323#define SRAM_CH09  9            /* Video Upstream I */
 324#define SRAM_CH10  10           /* Video Upstream J */
 325#define SRAM_CH11  11           /* Audio Upstream AUD_CHANNEL_B */
 326
 327#define VID_UPSTREAM_SRAM_CHANNEL_I     SRAM_CH09
 328#define VID_UPSTREAM_SRAM_CHANNEL_J     SRAM_CH10
 329#define AUDIO_UPSTREAM_SRAM_CHANNEL_B   SRAM_CH11
 330
 331struct sram_channel {
 332        char *name;
 333        u32 i;
 334        u32 cmds_start;
 335        u32 ctrl_start;
 336        u32 cdt;
 337        u32 fifo_start;
 338        u32 fifo_size;
 339        u32 ptr1_reg;
 340        u32 ptr2_reg;
 341        u32 cnt1_reg;
 342        u32 cnt2_reg;
 343        u32 int_msk;
 344        u32 int_stat;
 345        u32 int_mstat;
 346        u32 dma_ctl;
 347        u32 gpcnt_ctl;
 348        u32 gpcnt;
 349        u32 aud_length;
 350        u32 aud_cfg;
 351        u32 fld_aud_fifo_en;
 352        u32 fld_aud_risc_en;
 353
 354        /* For Upstream Video */
 355        u32 vid_fmt_ctl;
 356        u32 vid_active_ctl1;
 357        u32 vid_active_ctl2;
 358        u32 vid_cdt_size;
 359
 360        u32 vip_ctl;
 361        u32 pix_frmt;
 362        u32 jumponly;
 363        u32 irq_bit;
 364};
 365
 366extern const struct sram_channel cx25821_sram_channels[];
 367
 368#define cx_read(reg)             readl(dev->lmmio + ((reg)>>2))
 369#define cx_write(reg, value)     writel((value), dev->lmmio + ((reg)>>2))
 370
 371#define cx_andor(reg, mask, value) \
 372        writel((readl(dev->lmmio+((reg)>>2)) & ~(mask)) |\
 373        ((value) & (mask)), dev->lmmio+((reg)>>2))
 374
 375#define cx_set(reg, bit)          cx_andor((reg), (bit), (bit))
 376#define cx_clear(reg, bit)        cx_andor((reg), (bit), 0)
 377
 378#define Set_GPIO_Bit(Bit)                       (1 << Bit)
 379#define Clear_GPIO_Bit(Bit)                     (~(1 << Bit))
 380
 381#define CX25821_ERR(fmt, args...)                       \
 382        pr_err("(%d): " fmt, dev->board, ##args)
 383#define CX25821_WARN(fmt, args...)                      \
 384        pr_warn("(%d): " fmt, dev->board, ##args)
 385#define CX25821_INFO(fmt, args...)                      \
 386        pr_info("(%d): " fmt, dev->board, ##args)
 387
 388extern int cx25821_i2c_register(struct cx25821_i2c *bus);
 389extern int cx25821_i2c_read(struct cx25821_i2c *bus, u16 reg_addr, int *value);
 390extern int cx25821_i2c_write(struct cx25821_i2c *bus, u16 reg_addr, int value);
 391extern int cx25821_i2c_unregister(struct cx25821_i2c *bus);
 392extern void cx25821_gpio_init(struct cx25821_dev *dev);
 393extern void cx25821_set_gpiopin_direction(struct cx25821_dev *dev,
 394                                          int pin_number, int pin_logic_value);
 395
 396extern int medusa_video_init(struct cx25821_dev *dev);
 397extern int medusa_set_videostandard(struct cx25821_dev *dev);
 398extern void medusa_set_resolution(struct cx25821_dev *dev, int width,
 399                                  int decoder_select);
 400extern int medusa_set_brightness(struct cx25821_dev *dev, int brightness,
 401                                 int decoder);
 402extern int medusa_set_contrast(struct cx25821_dev *dev, int contrast,
 403                               int decoder);
 404extern int medusa_set_hue(struct cx25821_dev *dev, int hue, int decoder);
 405extern int medusa_set_saturation(struct cx25821_dev *dev, int saturation,
 406                                 int decoder);
 407
 408extern int cx25821_sram_channel_setup(struct cx25821_dev *dev,
 409                                      const struct sram_channel *ch, unsigned int bpl,
 410                                      u32 risc);
 411
 412extern int cx25821_riscmem_alloc(struct pci_dev *pci,
 413                                 struct cx25821_riscmem *risc,
 414                                 unsigned int size);
 415extern int cx25821_risc_buffer(struct pci_dev *pci, struct cx25821_riscmem *risc,
 416                               struct scatterlist *sglist,
 417                               unsigned int top_offset,
 418                               unsigned int bottom_offset,
 419                               unsigned int bpl,
 420                               unsigned int padding, unsigned int lines);
 421extern int cx25821_risc_databuffer_audio(struct pci_dev *pci,
 422                                         struct cx25821_riscmem *risc,
 423                                         struct scatterlist *sglist,
 424                                         unsigned int bpl,
 425                                         unsigned int lines, unsigned int lpi);
 426extern void cx25821_free_buffer(struct cx25821_dev *dev,
 427                                struct cx25821_buffer *buf);
 428extern void cx25821_sram_channel_dump(struct cx25821_dev *dev,
 429                                      const struct sram_channel *ch);
 430extern void cx25821_sram_channel_dump_audio(struct cx25821_dev *dev,
 431                                            const struct sram_channel *ch);
 432
 433extern struct cx25821_dev *cx25821_dev_get(struct pci_dev *pci);
 434extern void cx25821_print_irqbits(char *name, char *tag, char **strings,
 435                                  int len, u32 bits, u32 mask);
 436extern void cx25821_dev_unregister(struct cx25821_dev *dev);
 437extern int cx25821_sram_channel_setup_audio(struct cx25821_dev *dev,
 438                                            const struct sram_channel *ch,
 439                                            unsigned int bpl, u32 risc);
 440
 441extern int cx25821_vidupstream_init(struct cx25821_channel *chan, int pixel_format);
 442extern int cx25821_audio_upstream_init(struct cx25821_dev *dev,
 443                                       int channel_select);
 444extern int cx25821_write_frame(struct cx25821_channel *chan,
 445                const char __user *data, size_t count);
 446extern void cx25821_free_mem_upstream(struct cx25821_channel *chan);
 447extern void cx25821_free_mem_upstream_audio(struct cx25821_dev *dev);
 448extern void cx25821_stop_upstream_video(struct cx25821_channel *chan);
 449extern void cx25821_stop_upstream_audio(struct cx25821_dev *dev);
 450extern int cx25821_sram_channel_setup_upstream(struct cx25821_dev *dev,
 451                                               const struct sram_channel *ch,
 452                                               unsigned int bpl, u32 risc);
 453extern void cx25821_set_pixel_format(struct cx25821_dev *dev, int channel,
 454                                     u32 format);
 455
 456#endif
 457