1 /*
2 * Driver for the Conexant CX23885 PCIe bridge
3 *
4 * Copyright (c) 2006 Steven Toth <stoth@hauppauge.com>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 *
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 */
21
22 #include <linux/pci.h>
23 #include <linux/i2c.h>
24 #include <linux/i2c-algo-bit.h>
25 #include <linux/kdev_t.h>
26
27 #include <media/v4l2-common.h>
28 #include <media/tuner.h>
29 #include <media/tveeprom.h>
30 #include <media/videobuf-dma-sg.h>
31 #include <media/videobuf-dvb.h>
32
33 #include "btcx-risc.h"
34 #include "cx23885-reg.h"
35
36 #include <linux/version.h>
37 #include <linux/mutex.h>
38
39 #define CX23885_VERSION_CODE KERNEL_VERSION(0,0,1)
40
41 #define UNSET (-1U)
42
43 #define CX23885_MAXBOARDS 8
44
45 /* Max number of inputs by card */
46 #define MAX_CX23885_INPUT 8
47 #define INPUT(nr) (&cx23885_boards[dev->board].input[nr])
48 #define RESOURCE_OVERLAY 1
49 #define RESOURCE_VIDEO 2
50 #define RESOURCE_VBI 4
51
52 #define BUFFER_TIMEOUT (HZ) /* 0.5 seconds */
53
54 #define CX23885_BOARD_NOAUTO UNSET
55 #define CX23885_BOARD_UNKNOWN 0
56 #define CX23885_BOARD_HAUPPAUGE_HVR1800lp 1
57 #define CX23885_BOARD_HAUPPAUGE_HVR1800 2
58 #define CX23885_BOARD_HAUPPAUGE_HVR1250 3
59 #define CX23885_BOARD_DVICO_FUSIONHDTV_5_EXP 4
60 #define CX23885_BOARD_HAUPPAUGE_HVR1500Q 5
61 #define CX23885_BOARD_HAUPPAUGE_HVR1500 6
62
63 /* Currently unsupported by the driver: PAL/H, NTSC/Kr, SECAM B/G/H/LC */
64 #define CX23885_NORMS (\
65 V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_JP | V4L2_STD_NTSC_443 | \
66 V4L2_STD_PAL_BG | V4L2_STD_PAL_DK | V4L2_STD_PAL_I | \
67 V4L2_STD_PAL_M | V4L2_STD_PAL_N | V4L2_STD_PAL_Nc | \
68 V4L2_STD_PAL_60 | V4L2_STD_SECAM_L | V4L2_STD_SECAM_DK)
69
70 struct cx23885_fmt {
71 char *name;
72 u32 fourcc; /* v4l2 format id */
73 int depth;
74 int flags;
75 u32 cxformat;
76 };
77
78 struct cx23885_ctrl {
79 struct v4l2_queryctrl v;
80 u32 off;
81 u32 reg;
82 u32 mask;
83 u32 shift;
84 };
85
86 struct cx23885_tvnorm {
87 char *name;
88 v4l2_std_id id;
89 u32 cxiformat;
90 u32 cxoformat;
91 };
92
93 struct cx23885_fh {
94 struct cx23885_dev *dev;
95 enum v4l2_buf_type type;
96 int radio;
97 u32 resources;
98
99 /* video overlay */
100 struct v4l2_window win;
101 struct v4l2_clip *clips;
102 unsigned int nclips;
103
104 /* video capture */
105 struct cx23885_fmt *fmt;
106 unsigned int width, height;
107
108 /* vbi capture */
109 struct videobuf_queue vidq;
110 struct videobuf_queue vbiq;
111
112 /* MPEG Encoder specifics ONLY */
113 struct videobuf_queue mpegq;
114 atomic_t v4l_reading;
115 };
116
117 enum cx23885_itype {
118 CX23885_VMUX_COMPOSITE1 = 1,
119 CX23885_VMUX_COMPOSITE2,
120 CX23885_VMUX_COMPOSITE3,
121 CX23885_VMUX_COMPOSITE4,
122 CX23885_VMUX_SVIDEO,
123 CX23885_VMUX_TELEVISION,
124 CX23885_VMUX_CABLE,
125 CX23885_VMUX_DVB,
126 CX23885_VMUX_DEBUG,
127 CX23885_RADIO,
128 };
129
130 enum cx23885_src_sel_type {
131 CX23885_SRC_SEL_EXT_656_VIDEO = 0,
132 CX23885_SRC_SEL_PARALLEL_MPEG_VIDEO
133 };
134
135 /* buffer for one video frame */
136 struct cx23885_buffer {
137 /* common v4l buffer stuff -- must be first */
138 struct videobuf_buffer vb;
139
140 /* cx23885 specific */
141 unsigned int bpl;
142 struct btcx_riscmem risc;
143 struct cx23885_fmt *fmt;
144 u32 count;
145 };
146
147 struct cx23885_input {
148 enum cx23885_itype type;
149 unsigned int vmux;
150 u32 gpio0, gpio1, gpio2, gpio3;
151 };
152
153 typedef enum {
154 CX23885_MPEG_UNDEFINED = 0,
155 CX23885_MPEG_DVB,
156 CX23885_ANALOG_VIDEO,
157 } port_t;
158
159 struct cx23885_board {
160 char *name;
161 port_t porta, portb, portc;
162 unsigned int tuner_type;
163 unsigned int radio_type;
164 unsigned char tuner_addr;
165 unsigned char radio_addr;
166
167 /* Vendors can and do run the PCIe bridge at different
168 * clock rates, driven physically by crystals on the PCBs.
169 * The core has to accomodate this. This allows the user
170 * to add new boards with new frequencys. The value is
171 * expressed in Hz.
172 *
173 * The core framework will default this value based on
174 * current designs, but it can vary.
175 */
176 u32 clk_freq;
177 struct cx23885_input input[MAX_CX23885_INPUT];
178 };
179
180 struct cx23885_subid {
181 u16 subvendor;
182 u16 subdevice;
183 u32 card;
184 };
185
186 struct cx23885_i2c {
187 struct cx23885_dev *dev;
188
189 int nr;
190
191 /* i2c i/o */
192 struct i2c_adapter i2c_adap;
193 struct i2c_algo_bit_data i2c_algo;
194 struct i2c_client i2c_client;
195 u32 i2c_rc;
196
197 /* 885 registers used for raw addess */
198 u32 i2c_period;
199 u32 reg_ctrl;
200 u32 reg_stat;
201 u32 reg_addr;
202 u32 reg_rdata;
203 u32 reg_wdata;
204 };
205
206 struct cx23885_dmaqueue {
207 struct list_head active;
208 struct list_head queued;
209 struct timer_list timeout;
210 struct btcx_riscmem stopper;
211 u32 count;
212 };
213
214 struct cx23885_tsport {
215 struct cx23885_dev *dev;
216
217 int nr;
218 int sram_chno;
219
220 struct videobuf_dvb dvb;
221
222 /* dma queues */
223 struct cx23885_dmaqueue mpegq;
224 u32 ts_packet_size;
225 u32 ts_packet_count;
226
227 int width;
228 int height;
229
230 spinlock_t slock;
231
232 /* registers */
233 u32 reg_gpcnt;
234 u32 reg_gpcnt_ctl;
235 u32 reg_dma_ctl;
236 u32 reg_lngth;
237 u32 reg_hw_sop_ctrl;
238 u32 reg_gen_ctrl;
239 u32 reg_bd_pkt_status;
240 u32 reg_sop_status;
241 u32 reg_fifo_ovfl_stat;
242 u32 reg_vld_misc;
243 u32 reg_ts_clk_en;
244 u32 reg_ts_int_msk;
245 u32 reg_ts_int_stat;
246 u32 reg_src_sel;
247
248 /* Default register vals */
249 int pci_irqmask;
250 u32 dma_ctl_val;
251 u32 ts_int_msk_val;
252 u32 gen_ctrl_val;
253 u32 ts_clk_en_val;
254 u32 src_sel_val;
255 };
256
257 struct cx23885_dev {
258 struct list_head devlist;
259 atomic_t refcount;
260
261 /* pci stuff */
262 struct pci_dev *pci;
263 unsigned char pci_rev, pci_lat;
264 int pci_bus, pci_slot;
265 u32 __iomem *lmmio;
266 u8 __iomem *bmmio;
267 int pci_irqmask;
268 int hwrevision;
269
270 /* This valud is board specific and is used to configure the
271 * AV core so we see nice clean and stable video and audio. */
272 u32 clk_freq;
273
274 /* I2C adapters: Master 1 & 2 (External) & Master 3 (Internal only) */
275 struct cx23885_i2c i2c_bus[3];
276
277 int nr;
278 struct mutex lock;
279
280 /* board details */
281 unsigned int board;
282 char name[32];
283
284 struct cx23885_tsport ts1, ts2;
285
286 /* sram configuration */
287 struct sram_channel *sram_channels;
288
289 enum {
290 CX23885_BRIDGE_UNDEFINED = 0,
291 CX23885_BRIDGE_885 = 885,
292 CX23885_BRIDGE_887 = 887,
293 } bridge;
294
295 /* Analog video */
296 u32 resources;
297 unsigned int input;
298 u32 tvaudio;
299 v4l2_std_id tvnorm;
300 unsigned int tuner_type;
301 unsigned char tuner_addr;
302 unsigned int radio_type;
303 unsigned char radio_addr;
304 unsigned int has_radio;
305
306 /* V4l */
307 u32 freq;
308 struct video_device *video_dev;
309 struct video_device *vbi_dev;
310 struct video_device *radio_dev;
311
312 struct cx23885_dmaqueue vidq;
313 struct cx23885_dmaqueue vbiq;
314 spinlock_t slock;
315 };
316
317 extern struct list_head cx23885_devlist;
318
319 #define SRAM_CH01 0 /* Video A */
320 #define SRAM_CH02 1 /* VBI A */
321 #define SRAM_CH03 2 /* Video B */
322 #define SRAM_CH04 3 /* Transport via B */
323 #define SRAM_CH05 4 /* VBI B */
324 #define SRAM_CH06 5 /* Video C */
325 #define SRAM_CH07 6 /* Transport via C */
326 #define SRAM_CH08 7 /* Audio Internal A */
327 #define SRAM_CH09 8 /* Audio Internal B */
328 #define SRAM_CH10 9 /* Audio External */
329 #define SRAM_CH11 10 /* COMB_3D_N */
330 #define SRAM_CH12 11 /* Comb 3D N1 */
331 #define SRAM_CH13 12 /* Comb 3D N2 */
332 #define SRAM_CH14 13 /* MOE Vid */
333 #define SRAM_CH15 14 /* MOE RSLT */
334
335 struct sram_channel {
336 char *name;
337 u32 cmds_start;
338 u32 ctrl_start;
339 u32 cdt;
340 u32 fifo_start;;
341 u32 fifo_size;
342 u32 ptr1_reg;
343 u32 ptr2_reg;
344 u32 cnt1_reg;
345 u32 cnt2_reg;
346 u32 jumponly;
347 };
348
349 /* ----------------------------------------------------------- */
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 /* ----------------------------------------------------------- */
362 /* cx23885-core.c */
363
364 extern int cx23885_sram_channel_setup(struct cx23885_dev *dev,
365 struct sram_channel *ch,
366 unsigned int bpl, u32 risc);
367
368 extern void cx23885_sram_channel_dump(struct cx23885_dev *dev,
369 struct sram_channel *ch);
370
371 extern int cx23885_risc_stopper(struct pci_dev *pci, struct btcx_riscmem *risc,
372 u32 reg, u32 mask, u32 value);
373
374 extern int cx23885_risc_buffer(struct pci_dev *pci, struct btcx_riscmem *risc,
375 struct scatterlist *sglist,
376 unsigned int top_offset, unsigned int bottom_offset,
377 unsigned int bpl, unsigned int padding, unsigned int lines);
378
379 void cx23885_cancel_buffers(struct cx23885_tsport *port);
380
381 extern int cx23885_restart_queue(struct cx23885_tsport *port,
382 struct cx23885_dmaqueue *q);
383
384 extern void cx23885_wakeup(struct cx23885_tsport *port,
385 struct cx23885_dmaqueue *q, u32 count);
386
387
388 /* ----------------------------------------------------------- */
389 /* cx23885-cards.c */
390 extern struct cx23885_board cx23885_boards[];
391 extern const unsigned int cx23885_bcount;
392
393 extern struct cx23885_subid cx23885_subids[];
394 extern const unsigned int cx23885_idcount;
395
396 extern int cx23885_tuner_callback(void *priv, int command, int arg);
397 extern void cx23885_card_list(struct cx23885_dev *dev);
398 extern int cx23885_ir_init(struct cx23885_dev *dev);
399 extern void cx23885_gpio_setup(struct cx23885_dev *dev);
400 extern void cx23885_card_setup(struct cx23885_dev *dev);
401 extern void cx23885_card_setup_pre_i2c(struct cx23885_dev *dev);
402
403 extern int cx23885_dvb_register(struct cx23885_tsport *port);
404 extern int cx23885_dvb_unregister(struct cx23885_tsport *port);
405
406 extern int cx23885_buf_prepare(struct videobuf_queue *q,
407 struct cx23885_tsport *port,
408 struct cx23885_buffer *buf,
409 enum v4l2_field field);
410 extern void cx23885_buf_queue(struct cx23885_tsport *port,
411 struct cx23885_buffer *buf);
412 extern void cx23885_free_buffer(struct videobuf_queue *q,
413 struct cx23885_buffer *buf);
414
415 /* ----------------------------------------------------------- */
416 /* cx23885-video.c */
417 /* Video */
418 extern int cx23885_video_register(struct cx23885_dev *dev);
419 extern void cx23885_video_unregister(struct cx23885_dev *dev);
420 extern int cx23885_video_irq(struct cx23885_dev *dev, u32 status);
421
422 /* ----------------------------------------------------------- */
423 /* cx23885-vbi.c */
424 extern int cx23885_vbi_fmt(struct file *file, void *priv,
425 struct v4l2_format *f);
426 extern void cx23885_vbi_timeout(unsigned long data);
427 extern struct videobuf_queue_ops cx23885_vbi_qops;
428
429 /* cx23885-i2c.c */
430 extern int cx23885_i2c_register(struct cx23885_i2c *bus);
431 extern int cx23885_i2c_unregister(struct cx23885_i2c *bus);
432 extern void cx23885_call_i2c_clients(struct cx23885_i2c *bus, unsigned int cmd,
433 void *arg);
434
435 /* ----------------------------------------------------------- */
436 /* tv norms */
437
438 static inline unsigned int norm_maxw(v4l2_std_id norm)
439 {
440 return (norm & (V4L2_STD_MN & ~V4L2_STD_PAL_Nc)) ? 720 : 768;
441 }
442
443 static inline unsigned int norm_maxh(v4l2_std_id norm)
444 {
445 return (norm & V4L2_STD_625_50) ? 576 : 480;
446 }
447
448 static inline unsigned int norm_swidth(v4l2_std_id norm)
449 {
450 return (norm & (V4L2_STD_MN & ~V4L2_STD_PAL_Nc)) ? 754 : 922;
451 }
452
453
454 /*
455 * Local variables:
456 * c-basic-offset: 8
457 * End:
458 * kate: eol "unix"; indent-width 3; remove-trailing-space on; replace-trailing-space-save on; tab-width 8; replace-tabs off; space-indent off; mixed-indent off
459 */
460
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