linux/drivers/media/pci/cx25821/cx25821.h
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   1/* SPDX-License-Identifier: GPL-2.0-or-later */
   2/*
   3 *  Driver for the Conexant CX25821 PCIe bridge
   4 *
   5 *  Copyright (C) 2009 Conexant Systems Inc.
   6 *  Authors  <shu.lin@conexant.com>, <hiep.huynh@conexant.com>
   7 *  Based on Steven Toth <stoth@linuxtv.org> cx23885 driver
   8 */
   9
  10#ifndef CX25821_H_
  11#define CX25821_H_
  12
  13#include <linux/pci.h>
  14#include <linux/i2c.h>
  15#include <linux/interrupt.h>
  16#include <linux/delay.h>
  17#include <linux/sched.h>
  18#include <linux/kdev_t.h>
  19
  20#include <media/v4l2-common.h>
  21#include <media/v4l2-device.h>
  22#include <media/v4l2-ctrls.h>
  23#include <media/videobuf2-v4l2.h>
  24#include <media/videobuf2-dma-sg.h>
  25
  26#include "cx25821-reg.h"
  27#include "cx25821-medusa-reg.h"
  28#include "cx25821-sram.h"
  29#include "cx25821-audio.h"
  30
  31#include <linux/version.h>
  32#include <linux/mutex.h>
  33
  34#define UNSET (-1U)
  35#define NO_SYNC_LINE (-1U)
  36
  37#define CX25821_MAXBOARDS 2
  38
  39#define LINE_SIZE_D1    1440
  40
  41/* Number of decoders and encoders */
  42#define MAX_DECODERS            8
  43#define MAX_ENCODERS            2
  44#define QUAD_DECODERS           4
  45#define MAX_CAMERAS             16
  46
  47/* Max number of inputs by card */
  48#define MAX_CX25821_INPUT     8
  49#define RESOURCE_VIDEO0       1
  50#define RESOURCE_VIDEO1       2
  51#define RESOURCE_VIDEO2       4
  52#define RESOURCE_VIDEO3       8
  53#define RESOURCE_VIDEO4       16
  54#define RESOURCE_VIDEO5       32
  55#define RESOURCE_VIDEO6       64
  56#define RESOURCE_VIDEO7       128
  57#define RESOURCE_VIDEO8       256
  58#define RESOURCE_VIDEO9       512
  59#define RESOURCE_VIDEO10      1024
  60#define RESOURCE_VIDEO11      2048
  61
  62#define BUFFER_TIMEOUT     (HZ) /* 0.5 seconds */
  63
  64#define UNKNOWN_BOARD        0
  65#define CX25821_BOARD        1
  66
  67/* Currently supported by the driver */
  68#define CX25821_NORMS (\
  69        V4L2_STD_NTSC_M |  V4L2_STD_NTSC_M_JP | V4L2_STD_NTSC_M_KR | \
  70        V4L2_STD_PAL_BG |  V4L2_STD_PAL_DK    |  V4L2_STD_PAL_I    | \
  71        V4L2_STD_PAL_M  |  V4L2_STD_PAL_N     |  V4L2_STD_PAL_H    | \
  72        V4L2_STD_PAL_Nc)
  73
  74#define CX25821_BOARD_CONEXANT_ATHENA10 1
  75#define MAX_VID_CHANNEL_NUM     12
  76
  77/*
  78 * Maximum capture-only channels. This can go away once video/audio output
  79 * is fully supported in this driver.
  80 */
  81#define MAX_VID_CAP_CHANNEL_NUM     10
  82
  83#define VID_CHANNEL_NUM 8
  84
  85struct cx25821_fmt {
  86        u32 fourcc;             /* v4l2 format id */
  87        int depth;
  88        int flags;
  89        u32 cxformat;
  90};
  91
  92struct cx25821_tvnorm {
  93        char *name;
  94        v4l2_std_id id;
  95        u32 cxiformat;
  96        u32 cxoformat;
  97};
  98
  99enum cx25821_src_sel_type {
 100        CX25821_SRC_SEL_EXT_656_VIDEO = 0,
 101        CX25821_SRC_SEL_PARALLEL_MPEG_VIDEO
 102};
 103
 104struct cx25821_riscmem {
 105        unsigned int   size;
 106        __le32         *cpu;
 107        __le32         *jmp;
 108        dma_addr_t     dma;
 109};
 110
 111/* buffer for one video frame */
 112struct cx25821_buffer {
 113        /* common v4l buffer stuff -- must be first */
 114        struct vb2_v4l2_buffer vb;
 115        struct list_head queue;
 116
 117        /* cx25821 specific */
 118        unsigned int bpl;
 119        struct cx25821_riscmem risc;
 120        const struct cx25821_fmt *fmt;
 121};
 122
 123enum port {
 124        CX25821_UNDEFINED = 0,
 125        CX25821_RAW,
 126        CX25821_264
 127};
 128
 129struct cx25821_board {
 130        const char *name;
 131        enum port porta;
 132        enum port portb;
 133        enum port portc;
 134
 135        u32 clk_freq;
 136};
 137
 138struct cx25821_i2c {
 139        struct cx25821_dev *dev;
 140
 141        int nr;
 142
 143        /* i2c i/o */
 144        struct i2c_adapter i2c_adap;
 145        struct i2c_client i2c_client;
 146        u32 i2c_rc;
 147
 148        /* cx25821 registers used for raw address */
 149        u32 i2c_period;
 150        u32 reg_ctrl;
 151        u32 reg_stat;
 152        u32 reg_addr;
 153        u32 reg_rdata;
 154        u32 reg_wdata;
 155};
 156
 157struct cx25821_dmaqueue {
 158        struct list_head active;
 159        u32 count;
 160};
 161
 162struct cx25821_dev;
 163
 164struct cx25821_channel;
 165
 166struct cx25821_video_out_data {
 167        struct cx25821_channel *chan;
 168        int _line_size;
 169        int _prog_cnt;
 170        int _pixel_format;
 171        int _is_first_frame;
 172        int _is_running;
 173        int _file_status;
 174        int _lines_count;
 175        int _frame_count;
 176        unsigned int _risc_size;
 177
 178        __le32 *_dma_virt_start_addr;
 179        __le32 *_dma_virt_addr;
 180        dma_addr_t _dma_phys_addr;
 181        dma_addr_t _dma_phys_start_addr;
 182
 183        unsigned int _data_buf_size;
 184        __le32 *_data_buf_virt_addr;
 185        dma_addr_t _data_buf_phys_addr;
 186
 187        u32 upstream_riscbuf_size;
 188        u32 upstream_databuf_size;
 189        int is_60hz;
 190        int _frame_index;
 191        int cur_frame_index;
 192        int curpos;
 193        wait_queue_head_t waitq;
 194};
 195
 196struct cx25821_channel {
 197        unsigned id;
 198        struct cx25821_dev *dev;
 199
 200        struct v4l2_ctrl_handler hdl;
 201
 202        struct video_device vdev;
 203        struct cx25821_dmaqueue dma_vidq;
 204        struct vb2_queue vidq;
 205
 206        const struct sram_channel *sram_channels;
 207
 208        const struct cx25821_fmt *fmt;
 209        unsigned field;
 210        unsigned int width, height;
 211        int pixel_formats;
 212        int use_cif_resolution;
 213        int cif_width;
 214
 215        /* video output data for the video output channel */
 216        struct cx25821_video_out_data *out;
 217};
 218
 219struct snd_card;
 220
 221struct cx25821_dev {
 222        struct v4l2_device v4l2_dev;
 223
 224        /* pci stuff */
 225        struct pci_dev *pci;
 226        unsigned char pci_rev, pci_lat;
 227        int pci_bus, pci_slot;
 228        u32 base_io_addr;
 229        u32 __iomem *lmmio;
 230        u8 __iomem *bmmio;
 231        int pci_irqmask;
 232        int hwrevision;
 233        /* used by cx25821-alsa */
 234        struct snd_card *card;
 235
 236        u32 clk_freq;
 237
 238        /* I2C adapters: Master 1 & 2 (External) & Master 3 (Internal only) */
 239        struct cx25821_i2c i2c_bus[3];
 240
 241        int nr;
 242        struct mutex lock;
 243
 244        struct cx25821_channel channels[MAX_VID_CHANNEL_NUM];
 245
 246        /* board details */
 247        unsigned int board;
 248        char name[32];
 249
 250        /* Analog video */
 251        unsigned int input;
 252        v4l2_std_id tvnorm;
 253        unsigned short _max_num_decoders;
 254
 255        /* Analog Audio Upstream */
 256        int _audio_is_running;
 257        int _audiopixel_format;
 258        int _is_first_audio_frame;
 259        int _audiofile_status;
 260        int _audio_lines_count;
 261        int _audioframe_count;
 262        int _audio_upstream_channel;
 263        int _last_index_irq;    /* The last interrupt index processed. */
 264
 265        __le32 *_risc_audio_jmp_addr;
 266        __le32 *_risc_virt_start_addr;
 267        __le32 *_risc_virt_addr;
 268        dma_addr_t _risc_phys_addr;
 269        dma_addr_t _risc_phys_start_addr;
 270
 271        unsigned int _audiorisc_size;
 272        unsigned int _audiodata_buf_size;
 273        __le32 *_audiodata_buf_virt_addr;
 274        dma_addr_t _audiodata_buf_phys_addr;
 275        char *_audiofilename;
 276        u32 audio_upstream_riscbuf_size;
 277        u32 audio_upstream_databuf_size;
 278        int _audioframe_index;
 279        struct work_struct _audio_work_entry;
 280        char *input_audiofilename;
 281
 282        /* V4l */
 283        spinlock_t slock;
 284
 285        /* Video Upstream */
 286        struct cx25821_video_out_data vid_out_data[2];
 287};
 288
 289static inline struct cx25821_dev *get_cx25821(struct v4l2_device *v4l2_dev)
 290{
 291        return container_of(v4l2_dev, struct cx25821_dev, v4l2_dev);
 292}
 293
 294extern struct cx25821_board cx25821_boards[];
 295
 296#define SRAM_CH00  0            /* Video A */
 297#define SRAM_CH01  1            /* Video B */
 298#define SRAM_CH02  2            /* Video C */
 299#define SRAM_CH03  3            /* Video D */
 300#define SRAM_CH04  4            /* Video E */
 301#define SRAM_CH05  5            /* Video F */
 302#define SRAM_CH06  6            /* Video G */
 303#define SRAM_CH07  7            /* Video H */
 304
 305#define SRAM_CH08  8            /* Audio A */
 306#define SRAM_CH09  9            /* Video Upstream I */
 307#define SRAM_CH10  10           /* Video Upstream J */
 308#define SRAM_CH11  11           /* Audio Upstream AUD_CHANNEL_B */
 309
 310#define VID_UPSTREAM_SRAM_CHANNEL_I     SRAM_CH09
 311#define VID_UPSTREAM_SRAM_CHANNEL_J     SRAM_CH10
 312#define AUDIO_UPSTREAM_SRAM_CHANNEL_B   SRAM_CH11
 313
 314struct sram_channel {
 315        char *name;
 316        u32 i;
 317        u32 cmds_start;
 318        u32 ctrl_start;
 319        u32 cdt;
 320        u32 fifo_start;
 321        u32 fifo_size;
 322        u32 ptr1_reg;
 323        u32 ptr2_reg;
 324        u32 cnt1_reg;
 325        u32 cnt2_reg;
 326        u32 int_msk;
 327        u32 int_stat;
 328        u32 int_mstat;
 329        u32 dma_ctl;
 330        u32 gpcnt_ctl;
 331        u32 gpcnt;
 332        u32 aud_length;
 333        u32 aud_cfg;
 334        u32 fld_aud_fifo_en;
 335        u32 fld_aud_risc_en;
 336
 337        /* For Upstream Video */
 338        u32 vid_fmt_ctl;
 339        u32 vid_active_ctl1;
 340        u32 vid_active_ctl2;
 341        u32 vid_cdt_size;
 342
 343        u32 vip_ctl;
 344        u32 pix_frmt;
 345        u32 jumponly;
 346        u32 irq_bit;
 347};
 348
 349extern const struct sram_channel cx25821_sram_channels[];
 350
 351#define cx_read(reg)             readl(dev->lmmio + ((reg)>>2))
 352#define cx_write(reg, value)     writel((value), dev->lmmio + ((reg)>>2))
 353
 354#define cx_andor(reg, mask, value) \
 355        writel((readl(dev->lmmio+((reg)>>2)) & ~(mask)) |\
 356        ((value) & (mask)), dev->lmmio+((reg)>>2))
 357
 358#define cx_set(reg, bit)          cx_andor((reg), (bit), (bit))
 359#define cx_clear(reg, bit)        cx_andor((reg), (bit), 0)
 360
 361#define Set_GPIO_Bit(Bit)                       (1 << Bit)
 362#define Clear_GPIO_Bit(Bit)                     (~(1 << Bit))
 363
 364#define CX25821_ERR(fmt, args...)                       \
 365        pr_err("(%d): " fmt, dev->board, ##args)
 366#define CX25821_WARN(fmt, args...)                      \
 367        pr_warn("(%d): " fmt, dev->board, ##args)
 368#define CX25821_INFO(fmt, args...)                      \
 369        pr_info("(%d): " fmt, dev->board, ##args)
 370
 371extern int cx25821_i2c_register(struct cx25821_i2c *bus);
 372extern int cx25821_i2c_read(struct cx25821_i2c *bus, u16 reg_addr, int *value);
 373extern int cx25821_i2c_write(struct cx25821_i2c *bus, u16 reg_addr, int value);
 374extern int cx25821_i2c_unregister(struct cx25821_i2c *bus);
 375extern void cx25821_gpio_init(struct cx25821_dev *dev);
 376extern void cx25821_set_gpiopin_direction(struct cx25821_dev *dev,
 377                                          int pin_number, int pin_logic_value);
 378
 379extern int medusa_video_init(struct cx25821_dev *dev);
 380extern int medusa_set_videostandard(struct cx25821_dev *dev);
 381extern void medusa_set_resolution(struct cx25821_dev *dev, int width,
 382                                  int decoder_select);
 383extern int medusa_set_brightness(struct cx25821_dev *dev, int brightness,
 384                                 int decoder);
 385extern int medusa_set_contrast(struct cx25821_dev *dev, int contrast,
 386                               int decoder);
 387extern int medusa_set_hue(struct cx25821_dev *dev, int hue, int decoder);
 388extern int medusa_set_saturation(struct cx25821_dev *dev, int saturation,
 389                                 int decoder);
 390
 391extern int cx25821_sram_channel_setup(struct cx25821_dev *dev,
 392                                      const struct sram_channel *ch, unsigned int bpl,
 393                                      u32 risc);
 394
 395extern int cx25821_riscmem_alloc(struct pci_dev *pci,
 396                                 struct cx25821_riscmem *risc,
 397                                 unsigned int size);
 398extern int cx25821_risc_buffer(struct pci_dev *pci, struct cx25821_riscmem *risc,
 399                               struct scatterlist *sglist,
 400                               unsigned int top_offset,
 401                               unsigned int bottom_offset,
 402                               unsigned int bpl,
 403                               unsigned int padding, unsigned int lines);
 404extern int cx25821_risc_databuffer_audio(struct pci_dev *pci,
 405                                         struct cx25821_riscmem *risc,
 406                                         struct scatterlist *sglist,
 407                                         unsigned int bpl,
 408                                         unsigned int lines, unsigned int lpi);
 409extern void cx25821_free_buffer(struct cx25821_dev *dev,
 410                                struct cx25821_buffer *buf);
 411extern void cx25821_sram_channel_dump(struct cx25821_dev *dev,
 412                                      const struct sram_channel *ch);
 413extern void cx25821_sram_channel_dump_audio(struct cx25821_dev *dev,
 414                                            const struct sram_channel *ch);
 415
 416extern struct cx25821_dev *cx25821_dev_get(struct pci_dev *pci);
 417extern void cx25821_print_irqbits(char *name, char *tag, char **strings,
 418                                  int len, u32 bits, u32 mask);
 419extern void cx25821_dev_unregister(struct cx25821_dev *dev);
 420extern int cx25821_sram_channel_setup_audio(struct cx25821_dev *dev,
 421                                            const struct sram_channel *ch,
 422                                            unsigned int bpl, u32 risc);
 423
 424extern void cx25821_set_pixel_format(struct cx25821_dev *dev, int channel,
 425                                     u32 format);
 426
 427#endif
 428