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

source code of linux/drivers/media/pci/cx25821/cx25821.h