aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/media/video/saa7164/saa7164.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/media/video/saa7164/saa7164.h')
-rw-r--r--drivers/media/video/saa7164/saa7164.h401
1 files changed, 401 insertions, 0 deletions
diff --git a/drivers/media/video/saa7164/saa7164.h b/drivers/media/video/saa7164/saa7164.h
new file mode 100644
index 000000000000..ed38118ffde5
--- /dev/null
+++ b/drivers/media/video/saa7164/saa7164.h
@@ -0,0 +1,401 @@
1/*
2 * Driver for the NXP SAA7164 PCIe bridge
3 *
4 * Copyright (c) 2009 Steven Toth <stoth@kernellabs.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/*
23 Driver architecture
24 *******************
25
26 saa7164_core.c/buffer.c/cards.c/i2c.c/dvb.c
27 | : Standard Linux driver framework for creating
28 | : exposing and managing interfaces to the rest
29 | : of the kernel or userland. Also uses _fw.c to load
30 | : firmware direct into the PCIe bus, bypassing layers.
31 V
32 saa7164_api..() : Translate kernel specific functions/features
33 | : into command buffers.
34 V
35 saa7164_cmd..() : Manages the flow of command packets on/off,
36 | : the bus. Deal with bus errors, timeouts etc.
37 V
38 saa7164_bus..() : Manage a read/write memory ring buffer in the
39 | : PCIe Address space.
40 |
41 | saa7164_fw...() : Load any frimware
42 | | : direct into the device
43 V V
44 <- ----------------- PCIe address space -------------------- ->
45*/
46
47#include <linux/pci.h>
48#include <linux/i2c.h>
49#include <linux/i2c-algo-bit.h>
50#include <linux/kdev_t.h>
51
52#include <media/tuner.h>
53#include <media/tveeprom.h>
54#include <media/videobuf-dma-sg.h>
55#include <media/videobuf-dvb.h>
56
57#include "saa7164-reg.h"
58#include "saa7164-types.h"
59
60#include <linux/version.h>
61#include <linux/mutex.h>
62
63#define SAA7164_MAXBOARDS 8
64
65#define UNSET (-1U)
66#define SAA7164_BOARD_NOAUTO UNSET
67#define SAA7164_BOARD_UNKNOWN 0
68#define SAA7164_BOARD_UNKNOWN_REV2 1
69#define SAA7164_BOARD_UNKNOWN_REV3 2
70#define SAA7164_BOARD_HAUPPAUGE_HVR2250 3
71#define SAA7164_BOARD_HAUPPAUGE_HVR2200 4
72#define SAA7164_BOARD_HAUPPAUGE_HVR2200_2 5
73#define SAA7164_BOARD_HAUPPAUGE_HVR2200_3 6
74#define SAA7164_BOARD_HAUPPAUGE_HVR2250_2 7
75
76#define SAA7164_MAX_UNITS 8
77#define SAA7164_TS_NUMBER_OF_LINES 312
78#define SAA7164_PT_ENTRIES 16 /* (312 * 188) / 4096 */
79
80#define DBGLVL_FW 4
81#define DBGLVL_DVB 8
82#define DBGLVL_I2C 16
83#define DBGLVL_API 32
84#define DBGLVL_CMD 64
85#define DBGLVL_BUS 128
86#define DBGLVL_IRQ 256
87#define DBGLVL_BUF 512
88
89enum port_t {
90 SAA7164_MPEG_UNDEFINED = 0,
91 SAA7164_MPEG_DVB,
92};
93
94enum saa7164_i2c_bus_nr {
95 SAA7164_I2C_BUS_0 = 0,
96 SAA7164_I2C_BUS_1,
97 SAA7164_I2C_BUS_2,
98};
99
100enum saa7164_buffer_flags {
101 SAA7164_BUFFER_UNDEFINED = 0,
102 SAA7164_BUFFER_FREE,
103 SAA7164_BUFFER_BUSY,
104 SAA7164_BUFFER_FULL
105};
106
107enum saa7164_unit_type {
108 SAA7164_UNIT_UNDEFINED = 0,
109 SAA7164_UNIT_DIGITAL_DEMODULATOR,
110 SAA7164_UNIT_ANALOG_DEMODULATOR,
111 SAA7164_UNIT_TUNER,
112 SAA7164_UNIT_EEPROM,
113 SAA7164_UNIT_ZILOG_IRBLASTER,
114 SAA7164_UNIT_ENCODER,
115};
116
117/* The PCIe bridge doesn't grant direct access to i2c.
118 * Instead, you address i2c devices using a uniqely
119 * allocated 'unitid' value via a messaging API. This
120 * is a problem. The kernel and existing demod/tuner
121 * drivers expect to talk 'i2c', so we have to maintain
122 * a translation layer, and a series of functions to
123 * convert i2c bus + device address into a unit id.
124 */
125struct saa7164_unit {
126 enum saa7164_unit_type type;
127 u8 id;
128 char *name;
129 enum saa7164_i2c_bus_nr i2c_bus_nr;
130 u8 i2c_bus_addr;
131 u8 i2c_reg_len;
132};
133
134struct saa7164_board {
135 char *name;
136 enum port_t porta, portb;
137 enum {
138 SAA7164_CHIP_UNDEFINED = 0,
139 SAA7164_CHIP_REV2,
140 SAA7164_CHIP_REV3,
141 } chiprev;
142 struct saa7164_unit unit[SAA7164_MAX_UNITS];
143};
144
145struct saa7164_subid {
146 u16 subvendor;
147 u16 subdevice;
148 u32 card;
149};
150
151struct saa7164_fw_status {
152
153 /* RISC Core details */
154 u32 status;
155 u32 mode;
156 u32 spec;
157 u32 inst;
158 u32 cpuload;
159 u32 remainheap;
160
161 /* Firmware version */
162 u32 version;
163 u32 major;
164 u32 sub;
165 u32 rel;
166 u32 buildnr;
167};
168
169struct saa7164_dvb {
170 struct mutex lock;
171 struct dvb_adapter adapter;
172 struct dvb_frontend *frontend;
173 struct dvb_demux demux;
174 struct dmxdev dmxdev;
175 struct dmx_frontend fe_hw;
176 struct dmx_frontend fe_mem;
177 struct dvb_net net;
178 int feeding;
179};
180
181struct saa7164_i2c {
182 struct saa7164_dev *dev;
183
184 enum saa7164_i2c_bus_nr nr;
185
186 /* I2C I/O */
187 struct i2c_adapter i2c_adap;
188 struct i2c_algo_bit_data i2c_algo;
189 struct i2c_client i2c_client;
190 u32 i2c_rc;
191};
192
193struct saa7164_tsport;
194
195struct saa7164_buffer {
196 struct list_head list;
197
198 u32 nr;
199
200 struct saa7164_tsport *port;
201
202 /* Hardware Specific */
203 /* PCI Memory allocations */
204 enum saa7164_buffer_flags flags; /* Free, Busy, Full */
205
206 /* A block of page align PCI memory */
207 u32 pci_size; /* PCI allocation size in bytes */
208 u64 *cpu; /* Virtual address */
209 dma_addr_t dma; /* Physical address */
210
211 /* A page table that splits the block into a number of entries */
212 u32 pt_size; /* PCI allocation size in bytes */
213 u64 *pt_cpu; /* Virtual address */
214 dma_addr_t pt_dma; /* Physical address */
215};
216
217struct saa7164_tsport {
218
219 struct saa7164_dev *dev;
220 int nr;
221 enum port_t type;
222
223 struct saa7164_dvb dvb;
224
225 /* HW related stream parameters */
226 tmHWStreamParameters_t hw_streamingparams;
227
228 /* DMA configuration values, is seeded during initialization */
229 tmComResDMATermDescrHeader_t hwcfg;
230
231 /* hardware specific registers */
232 u32 bufcounter;
233 u32 pitch;
234 u32 bufsize;
235 u32 bufoffset;
236 u32 bufptr32l;
237 u32 bufptr32h;
238 u64 bufptr64;
239
240 u32 numpte; /* Number of entries in array, only valid in head */
241 struct mutex dmaqueue_lock;
242 struct mutex dummy_dmaqueue_lock;
243 struct saa7164_buffer dmaqueue;
244 struct saa7164_buffer dummy_dmaqueue;
245
246};
247
248struct saa7164_dev {
249 struct list_head devlist;
250 atomic_t refcount;
251
252 /* pci stuff */
253 struct pci_dev *pci;
254 unsigned char pci_rev, pci_lat;
255 int pci_bus, pci_slot;
256 u32 __iomem *lmmio;
257 u8 __iomem *bmmio;
258 u32 __iomem *lmmio2;
259 u8 __iomem *bmmio2;
260 int pci_irqmask;
261
262 /* board details */
263 int nr;
264 int hwrevision;
265 u32 board;
266 char name[32];
267
268 /* firmware status */
269 struct saa7164_fw_status fw_status;
270
271 tmComResHWDescr_t hwdesc;
272 tmComResInterfaceDescr_t intfdesc;
273 tmComResBusDescr_t busdesc;
274
275 tmComResBusInfo_t bus;
276
277 /* TODO: Urgh, remove volatiles */
278 volatile u32 *InterruptStatus;
279 volatile u32 *InterruptAck;
280
281 struct cmd cmds[SAA_CMD_MAX_MSG_UNITS];
282 struct mutex lock;
283
284 /* I2c related */
285 struct saa7164_i2c i2c_bus[3];
286
287 /* Transport related */
288 struct saa7164_tsport ts1, ts2;
289
290 /* Deferred command/api interrupts handling */
291 struct work_struct workcmd;
292
293};
294
295extern struct list_head saa7164_devlist;
296
297/* ----------------------------------------------------------- */
298/* saa7164-core.c */
299void saa7164_dumpregs(struct saa7164_dev *dev, u32 addr);
300void saa7164_dumphex16(struct saa7164_dev *dev, u8 *buf, int len);
301void saa7164_getfirmwarestatus(struct saa7164_dev *dev);
302u32 saa7164_getcurrentfirmwareversion(struct saa7164_dev *dev);
303
304/* ----------------------------------------------------------- */
305/* saa7164-fw.c */
306int saa7164_downloadfirmware(struct saa7164_dev *dev);
307
308/* ----------------------------------------------------------- */
309/* saa7164-i2c.c */
310extern int saa7164_i2c_register(struct saa7164_i2c *bus);
311extern int saa7164_i2c_unregister(struct saa7164_i2c *bus);
312extern void saa7164_call_i2c_clients(struct saa7164_i2c *bus,
313 unsigned int cmd, void *arg);
314
315/* ----------------------------------------------------------- */
316/* saa7164-bus.c */
317int saa7164_bus_setup(struct saa7164_dev *dev);
318void saa7164_bus_dump(struct saa7164_dev *dev);
319int saa7164_bus_set(struct saa7164_dev *dev, tmComResInfo_t* msg, void *buf);
320int saa7164_bus_get(struct saa7164_dev *dev, tmComResInfo_t* msg,
321 void *buf, int peekonly);
322
323/* ----------------------------------------------------------- */
324/* saa7164-cmd.c */
325int saa7164_cmd_send(struct saa7164_dev *dev,
326 u8 id, tmComResCmd_t command, u16 controlselector,
327 u16 size, void *buf);
328void saa7164_cmd_signal(struct saa7164_dev *dev, u8 seqno);
329
330/* ----------------------------------------------------------- */
331/* saa7164-api.c */
332int saa7164_api_test(struct saa7164_dev *dev);
333int saa7164_api_get_fw_version(struct saa7164_dev *dev, u32 *version);
334int saa7164_api_enum_subdevs(struct saa7164_dev *dev);
335int saa7164_api_i2c_read(struct saa7164_i2c *bus, u8 addr, u32 reglen, u8 *reg,
336 u32 datalen, u8 *data);
337int saa7164_api_i2c_write(struct saa7164_i2c *bus, u8 addr,
338 u32 datalen, u8 *data);
339int saa7164_api_dif_write(struct saa7164_i2c *bus, u8 addr,
340 u32 datalen, u8 *data);
341int saa7164_api_read_eeprom(struct saa7164_dev *dev, u8 *buf, int buflen);
342int saa7164_api_set_gpiobit(struct saa7164_dev *dev, u8 unitid, u8 pin);
343int saa7164_api_clear_gpiobit(struct saa7164_dev *dev, u8 unitid, u8 pin);
344int saa7164_api_transition_port(struct saa7164_tsport *port, u8 mode);
345
346/* ----------------------------------------------------------- */
347/* saa7164-cards.c */
348extern struct saa7164_board saa7164_boards[];
349extern const unsigned int saa7164_bcount;
350
351extern struct saa7164_subid saa7164_subids[];
352extern const unsigned int saa7164_idcount;
353
354extern void saa7164_card_list(struct saa7164_dev *dev);
355extern void saa7164_gpio_setup(struct saa7164_dev *dev);
356extern void saa7164_card_setup(struct saa7164_dev *dev);
357
358extern int saa7164_i2caddr_to_reglen(struct saa7164_i2c *bus, int addr);
359extern int saa7164_i2caddr_to_unitid(struct saa7164_i2c *bus, int addr);
360extern char *saa7164_unitid_name(struct saa7164_dev *dev, u8 unitid);
361
362/* ----------------------------------------------------------- */
363/* saa7164-dvb.c */
364extern int saa7164_dvb_register(struct saa7164_tsport *port);
365extern int saa7164_dvb_unregister(struct saa7164_tsport *port);
366
367/* ----------------------------------------------------------- */
368/* saa7164-buffer.c */
369extern struct saa7164_buffer *saa7164_buffer_alloc(struct saa7164_tsport *port,
370 u32 len);
371extern int saa7164_buffer_dealloc(struct saa7164_tsport *port,
372 struct saa7164_buffer *buf);
373
374/* ----------------------------------------------------------- */
375
376extern unsigned int debug;
377#define dprintk(level, fmt, arg...)\
378 do { if (debug & level)\
379 printk(KERN_DEBUG "%s: " fmt, dev->name, ## arg);\
380 } while (0)
381
382#define log_warn(fmt, arg...)\
383 do { \
384 printk(KERN_WARNING "%s: " fmt, dev->name, ## arg);\
385 } while (0)
386
387#define log_err(fmt, arg...)\
388 do { \
389 printk(KERN_ERROR "%s: " fmt, dev->name, ## arg);\
390 } while (0)
391
392#define saa7164_readl(reg) readl(dev->lmmio + ((reg) >> 2))
393#define saa7164_writel(reg, value) \
394do { \
395 printk(KERN_ERR "writel(%x, %llx)\n", value, (u64)(dev->lmmio + ((reg) >> 2))); \
396 writel((value), dev->lmmio + ((reg) >> 2)); \
397} while (0)
398
399#define saa7164_readb(reg) readl(dev->bmmio + (reg))
400#define saa7164_writeb(reg, value) writel((value), dev->bmmio + (reg))
401
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-11 08:28:07 -0500