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