5 * Copyright (C) 2005 Mike Isely <isely@pobox.com>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License
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 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 #ifndef __PVRUSB2_HDW_H
22 #define __PVRUSB2_HDW_H
24 #include <linux/usb.h>
25 #include <linux/videodev2.h>
26 #include "pvrusb2-io.h"
27 #include "pvrusb2-ctrl.h"
30 /* Private internal control ids, look these up with
31 pvr2_hdw_get_ctrl_by_id() - these are NOT visible in V4L */
32 #define PVR2_CID_STDENUM 1
33 #define PVR2_CID_STDCUR 2
34 #define PVR2_CID_STDAVAIL 3
35 #define PVR2_CID_INPUT 4
36 #define PVR2_CID_AUDIOMODE 5
37 #define PVR2_CID_FREQUENCY 6
38 #define PVR2_CID_HRES 7
39 #define PVR2_CID_VRES 8
41 /* Legal values for the INPUT state variable */
42 #define PVR2_CVAL_INPUT_TV 0
43 #define PVR2_CVAL_INPUT_DTV 1
44 #define PVR2_CVAL_INPUT_SVIDEO 2
45 #define PVR2_CVAL_INPUT_COMPOSITE 3
46 #define PVR2_CVAL_INPUT_RADIO 4
49 pvr2_config_empty, /* No configuration */
50 pvr2_config_mpeg, /* Encoded / compressed video */
51 pvr2_config_vbi, /* Standard vbi info */
52 pvr2_config_pcm, /* Audio raw pcm stream */
53 pvr2_config_rawvideo, /* Video raw frames */
62 /* Major states that we can be in:
64 * DEAD - Device is in an unusable state and cannot be recovered. This
65 * can happen if we completely lose the ability to communicate with it
66 * (but it might still on the bus). In this state there's nothing we can
67 * do; it must be replugged in order to recover.
69 * COLD - Device is in an unusuable state, needs microcontroller firmware.
71 * WARM - We can communicate with the device and the proper
72 * microcontroller firmware is running, but other device initialization is
73 * still needed (e.g. encoder firmware).
75 * ERROR - A problem prevents capture operation (e.g. encoder firmware
78 * READY - Device is operational, but not streaming.
80 * RUN - Device is streaming.
83 #define PVR2_STATE_NONE 0
84 #define PVR2_STATE_DEAD 1
85 #define PVR2_STATE_COLD 2
86 #define PVR2_STATE_WARM 3
87 #define PVR2_STATE_ERROR 4
88 #define PVR2_STATE_READY 5
89 #define PVR2_STATE_RUN 6
91 /* Translate configuration enum to a string label */
92 const char *pvr2_config_get_name(enum pvr2_config);
94 /* Translate a master state enum to a string label */
95 const char *pvr2_hdw_get_state_name(unsigned int);
99 /* Create and return a structure for interacting with the underlying
101 struct pvr2_hdw *pvr2_hdw_create(struct usb_interface *intf,
102 const struct usb_device_id *devid);
104 /* Destroy hardware interaction structure */
105 void pvr2_hdw_destroy(struct pvr2_hdw *);
107 /* Register a function to be called whenever the master state changes. */
108 void pvr2_hdw_set_state_callback(struct pvr2_hdw *,
109 void (*callback_func)(void *),
110 void *callback_data);
112 /* Return true if in the ready (normal) state */
113 int pvr2_hdw_dev_ok(struct pvr2_hdw *);
115 /* Return small integer number [1..N] for logical instance number of this
116 device. This is useful for indexing array-valued module parameters. */
117 int pvr2_hdw_get_unit_number(struct pvr2_hdw *);
119 /* Get pointer to underlying USB device */
120 struct usb_device *pvr2_hdw_get_dev(struct pvr2_hdw *);
122 /* Retrieve serial number of device */
123 unsigned long pvr2_hdw_get_sn(struct pvr2_hdw *);
125 /* Retrieve bus location info of device */
126 const char *pvr2_hdw_get_bus_info(struct pvr2_hdw *);
128 /* Called when hardware has been unplugged */
129 void pvr2_hdw_disconnect(struct pvr2_hdw *);
131 /* Get the number of defined controls */
132 unsigned int pvr2_hdw_get_ctrl_count(struct pvr2_hdw *);
134 /* Retrieve a control handle given its index (0..count-1) */
135 struct pvr2_ctrl *pvr2_hdw_get_ctrl_by_index(struct pvr2_hdw *,unsigned int);
137 /* Retrieve a control handle given its internal ID (if any) */
138 struct pvr2_ctrl *pvr2_hdw_get_ctrl_by_id(struct pvr2_hdw *,unsigned int);
140 /* Retrieve a control handle given its V4L ID (if any) */
141 struct pvr2_ctrl *pvr2_hdw_get_ctrl_v4l(struct pvr2_hdw *,unsigned int ctl_id);
143 /* Retrieve a control handle given its immediate predecessor V4L ID (if any) */
144 struct pvr2_ctrl *pvr2_hdw_get_ctrl_nextv4l(struct pvr2_hdw *,
145 unsigned int ctl_id);
147 /* Commit all control changes made up to this point */
148 int pvr2_hdw_commit_ctl(struct pvr2_hdw *);
150 /* Return name for this driver instance */
151 const char *pvr2_hdw_get_driver_name(struct pvr2_hdw *);
153 /* Mark tuner status stale so that it will be re-fetched */
154 void pvr2_hdw_execute_tuner_poll(struct pvr2_hdw *);
156 /* Return information about the tuner */
157 int pvr2_hdw_get_tuner_status(struct pvr2_hdw *,struct v4l2_tuner *);
159 /* Query device and see if it thinks it is on a high-speed USB link */
160 int pvr2_hdw_is_hsm(struct pvr2_hdw *);
162 /* Return a string token representative of the hardware type */
163 const char *pvr2_hdw_get_type(struct pvr2_hdw *);
165 /* Return a single line description of the hardware type */
166 const char *pvr2_hdw_get_desc(struct pvr2_hdw *);
168 /* Turn streaming on/off */
169 int pvr2_hdw_set_streaming(struct pvr2_hdw *,int);
171 /* Find out if streaming is on */
172 int pvr2_hdw_get_streaming(struct pvr2_hdw *);
174 /* Retrieve driver overall state */
175 int pvr2_hdw_get_state(struct pvr2_hdw *);
177 /* Configure the type of stream to generate */
178 int pvr2_hdw_set_stream_type(struct pvr2_hdw *, enum pvr2_config);
180 /* Get handle to video output stream */
181 struct pvr2_stream *pvr2_hdw_get_video_stream(struct pvr2_hdw *);
183 /* Emit a video standard struct */
184 int pvr2_hdw_get_stdenum_value(struct pvr2_hdw *hdw,struct v4l2_standard *std,
187 /* Enable / disable retrieval of CPU firmware or prom contents. This must
188 be enabled before pvr2_hdw_cpufw_get() will function. Note that doing
189 this may prevent the device from running (and leaving this mode may
190 imply a device reset). */
191 void pvr2_hdw_cpufw_set_enabled(struct pvr2_hdw *,
195 /* Return true if we're in a mode for retrieval CPU firmware */
196 int pvr2_hdw_cpufw_get_enabled(struct pvr2_hdw *);
198 /* Retrieve a piece of the CPU's firmware at the given offset. Return
199 value is the number of bytes retrieved or zero if we're past the end or
200 an error otherwise (e.g. if firmware retrieval is not enabled). */
201 int pvr2_hdw_cpufw_get(struct pvr2_hdw *,unsigned int offs,
202 char *buf,unsigned int cnt);
204 /* Retrieve a previously stored v4l minor device number */
205 int pvr2_hdw_v4l_get_minor_number(struct pvr2_hdw *,enum pvr2_v4l_type index);
207 /* Store a v4l minor device number */
208 void pvr2_hdw_v4l_store_minor_number(struct pvr2_hdw *,
209 enum pvr2_v4l_type index,int);
211 /* Direct read/write access to chip's registers:
212 match_type - how to interpret match_chip (e.g. driver ID, i2c address)
213 match_chip - chip match value (e.g. I2C_DRIVERD_xxxx)
214 reg_id - register number to access
215 setFl - true to set the register, false to read it
216 val_ptr - storage location for source / result. */
217 int pvr2_hdw_register_access(struct pvr2_hdw *,
218 u32 match_type, u32 match_chip,u64 reg_id,
219 int setFl,u64 *val_ptr);
221 /* The following entry points are all lower level things you normally don't
222 want to worry about. */
224 /* Issue a command and get a response from the device. LOTS of higher
225 level stuff is built on this. */
226 int pvr2_send_request(struct pvr2_hdw *,
227 void *write_ptr,unsigned int write_len,
228 void *read_ptr,unsigned int read_len);
230 /* Slightly higher level device communication functions. */
231 int pvr2_write_register(struct pvr2_hdw *, u16, u32);
233 /* Call if for any reason we can't talk to the hardware anymore - this will
234 cause the driver to stop flailing on the device. */
235 void pvr2_hdw_render_useless(struct pvr2_hdw *);
237 /* Set / clear 8051's reset bit */
238 void pvr2_hdw_cpureset_assert(struct pvr2_hdw *,int);
240 /* Execute a USB-commanded device reset */
241 void pvr2_hdw_device_reset(struct pvr2_hdw *);
243 /* Reset worker's error trapping circuit breaker */
244 int pvr2_hdw_untrip(struct pvr2_hdw *);
246 /* Execute hard reset command (after this point it's likely that the
247 encoder will have to be reconfigured). This also clears the "useless"
249 int pvr2_hdw_cmd_deep_reset(struct pvr2_hdw *);
251 /* Execute simple reset command */
252 int pvr2_hdw_cmd_powerup(struct pvr2_hdw *);
254 /* Order decoder to reset */
255 int pvr2_hdw_cmd_decoder_reset(struct pvr2_hdw *);
257 /* Direct manipulation of GPIO bits */
258 int pvr2_hdw_gpio_get_dir(struct pvr2_hdw *hdw,u32 *);
259 int pvr2_hdw_gpio_get_out(struct pvr2_hdw *hdw,u32 *);
260 int pvr2_hdw_gpio_get_in(struct pvr2_hdw *hdw,u32 *);
261 int pvr2_hdw_gpio_chg_dir(struct pvr2_hdw *hdw,u32 msk,u32 val);
262 int pvr2_hdw_gpio_chg_out(struct pvr2_hdw *hdw,u32 msk,u32 val);
264 /* This data structure is specifically for the next function... */
265 struct pvr2_hdw_debug_info {
268 int flag_disconnected;
272 int flag_decoder_missed;
274 int state_encoder_ok;
275 int state_encoder_run;
276 int state_decoder_run;
277 int state_usbstream_run;
278 int state_decoder_quiescent;
279 int state_pipeline_config;
280 int state_pipeline_req;
281 int state_pipeline_pause;
282 int state_pipeline_idle;
284 int cmd_debug_write_len;
285 int cmd_debug_read_len;
286 int cmd_debug_write_pend;
287 int cmd_debug_read_pend;
288 int cmd_debug_timeout;
289 int cmd_debug_rstatus;
290 int cmd_debug_wstatus;
291 unsigned char cmd_code;
294 /* Non-intrusively retrieve internal state info - this is useful for
295 diagnosing lockups. Note that this operation is completed without any
296 kind of locking and so it is not atomic and may yield inconsistent
297 results. This is *purely* a debugging aid. */
298 void pvr2_hdw_get_debug_info_unlocked(const struct pvr2_hdw *hdw,
299 struct pvr2_hdw_debug_info *);
301 /* Intrusively retrieve internal state info - this is useful for
302 diagnosing overall driver state. This operation synchronizes against
303 the overall driver mutex - so if there are locking problems this will
304 likely hang! This is *purely* a debugging aid. */
305 void pvr2_hdw_get_debug_info_locked(struct pvr2_hdw *hdw,
306 struct pvr2_hdw_debug_info *);
308 /* Report out several lines of text that describes driver internal state.
309 Results are written into the passed-in buffer. */
310 unsigned int pvr2_hdw_state_report(struct pvr2_hdw *hdw,
311 char *buf_ptr,unsigned int buf_size);
313 /* Cause modules to log their state once */
314 void pvr2_hdw_trigger_module_log(struct pvr2_hdw *hdw);
316 /* Cause encoder firmware to be uploaded into the device. This is normally
317 done autonomously, but the interface is exported here because it is also
319 int pvr2_upload_firmware2(struct pvr2_hdw *hdw);
321 #endif /* __PVRUSB2_HDW_H */
324 Stuff for Emacs to see, in order to encourage consistent editing style:
325 *** Local Variables: ***
327 *** fill-column: 75 ***
329 *** c-basic-offset: 8 ***