1/* 2 * 3 * 4 * Copyright (C) 2005 Mike Isely <isely@pobox.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 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 * 15 * You should have received a copy of the GNU General Public License 16 * along with this program; if not, write to the Free Software 17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 18 * 19 */ 20#ifndef __PVRUSB2_HDW_H 21#define __PVRUSB2_HDW_H 22 23#include <linux/usb.h> 24#include <linux/videodev2.h> 25#include "pvrusb2-io.h" 26#include "pvrusb2-ctrl.h" 27 28 29/* Private internal control ids, look these up with 30 pvr2_hdw_get_ctrl_by_id() - these are NOT visible in V4L */ 31#define PVR2_CID_STDENUM 1 32#define PVR2_CID_STDCUR 2 33#define PVR2_CID_STDAVAIL 3 34#define PVR2_CID_INPUT 4 35#define PVR2_CID_AUDIOMODE 5 36#define PVR2_CID_FREQUENCY 6 37#define PVR2_CID_HRES 7 38#define PVR2_CID_VRES 8 39#define PVR2_CID_CROPL 9 40#define PVR2_CID_CROPT 10 41#define PVR2_CID_CROPW 11 42#define PVR2_CID_CROPH 12 43#define PVR2_CID_CROPCAPPAN 13 44#define PVR2_CID_CROPCAPPAD 14 45#define PVR2_CID_CROPCAPBL 15 46#define PVR2_CID_CROPCAPBT 16 47#define PVR2_CID_CROPCAPBW 17 48#define PVR2_CID_CROPCAPBH 18 49 50/* Legal values for the INPUT state variable */ 51#define PVR2_CVAL_INPUT_TV 0 52#define PVR2_CVAL_INPUT_DTV 1 53#define PVR2_CVAL_INPUT_COMPOSITE 2 54#define PVR2_CVAL_INPUT_SVIDEO 3 55#define PVR2_CVAL_INPUT_RADIO 4 56 57enum pvr2_config { 58 pvr2_config_empty, /* No configuration */ 59 pvr2_config_mpeg, /* Encoded / compressed video */ 60 pvr2_config_vbi, /* Standard vbi info */ 61 pvr2_config_pcm, /* Audio raw pcm stream */ 62 pvr2_config_rawvideo, /* Video raw frames */ 63}; 64 65enum pvr2_v4l_type { 66 pvr2_v4l_type_video, 67 pvr2_v4l_type_vbi, 68 pvr2_v4l_type_radio, 69}; 70 71/* Major states that we can be in: 72 * 73 * DEAD - Device is in an unusable state and cannot be recovered. This 74 * can happen if we completely lose the ability to communicate with it 75 * (but it might still on the bus). In this state there's nothing we can 76 * do; it must be replugged in order to recover. 77 * 78 * COLD - Device is in an unusable state, needs microcontroller firmware. 79 * 80 * WARM - We can communicate with the device and the proper 81 * microcontroller firmware is running, but other device initialization is 82 * still needed (e.g. encoder firmware). 83 * 84 * ERROR - A problem prevents capture operation (e.g. encoder firmware 85 * missing). 86 * 87 * READY - Device is operational, but not streaming. 88 * 89 * RUN - Device is streaming. 90 * 91 */ 92#define PVR2_STATE_NONE 0 93#define PVR2_STATE_DEAD 1 94#define PVR2_STATE_COLD 2 95#define PVR2_STATE_WARM 3 96#define PVR2_STATE_ERROR 4 97#define PVR2_STATE_READY 5 98#define PVR2_STATE_RUN 6 99 100/* Translate configuration enum to a string label */ 101const char *pvr2_config_get_name(enum pvr2_config); 102 103struct pvr2_hdw; 104 105/* Create and return a structure for interacting with the underlying 106 hardware */ 107struct pvr2_hdw *pvr2_hdw_create(struct usb_interface *intf, 108 const struct usb_device_id *devid); 109 110/* Perform second stage initialization, passing in a notification callback 111 for when the master state changes. */ 112int pvr2_hdw_initialize(struct pvr2_hdw *, 113 void (*callback_func)(void *), 114 void *callback_data); 115 116/* Destroy hardware interaction structure */ 117void pvr2_hdw_destroy(struct pvr2_hdw *); 118 119/* Return true if in the ready (normal) state */ 120int pvr2_hdw_dev_ok(struct pvr2_hdw *); 121 122/* Return small integer number [1..N] for logical instance number of this 123 device. This is useful for indexing array-valued module parameters. */ 124int pvr2_hdw_get_unit_number(struct pvr2_hdw *); 125 126/* Get pointer to underlying USB device */ 127struct usb_device *pvr2_hdw_get_dev(struct pvr2_hdw *); 128 129/* Retrieve serial number of device */ 130unsigned long pvr2_hdw_get_sn(struct pvr2_hdw *); 131 132/* Retrieve bus location info of device */ 133const char *pvr2_hdw_get_bus_info(struct pvr2_hdw *); 134 135/* Retrieve per-instance string identifier for this specific device */ 136const char *pvr2_hdw_get_device_identifier(struct pvr2_hdw *); 137 138/* Called when hardware has been unplugged */ 139void pvr2_hdw_disconnect(struct pvr2_hdw *); 140 141/* Get the number of defined controls */ 142unsigned int pvr2_hdw_get_ctrl_count(struct pvr2_hdw *); 143 144/* Retrieve a control handle given its index (0..count-1) */ 145struct pvr2_ctrl *pvr2_hdw_get_ctrl_by_index(struct pvr2_hdw *,unsigned int); 146 147/* Retrieve a control handle given its internal ID (if any) */ 148struct pvr2_ctrl *pvr2_hdw_get_ctrl_by_id(struct pvr2_hdw *,unsigned int); 149 150/* Retrieve a control handle given its V4L ID (if any) */ 151struct pvr2_ctrl *pvr2_hdw_get_ctrl_v4l(struct pvr2_hdw *,unsigned int ctl_id); 152 153/* Retrieve a control handle given its immediate predecessor V4L ID (if any) */ 154struct pvr2_ctrl *pvr2_hdw_get_ctrl_nextv4l(struct pvr2_hdw *, 155 unsigned int ctl_id); 156 157/* Commit all control changes made up to this point */ 158int pvr2_hdw_commit_ctl(struct pvr2_hdw *); 159 160/* Return a bit mask of valid input selections for this device. Mask bits 161 * will be according to PVR_CVAL_INPUT_xxxx definitions. */ 162unsigned int pvr2_hdw_get_input_available(struct pvr2_hdw *); 163 164/* Return a bit mask of allowed input selections for this device. Mask bits 165 * will be according to PVR_CVAL_INPUT_xxxx definitions. */ 166unsigned int pvr2_hdw_get_input_allowed(struct pvr2_hdw *); 167 168/* Change the set of allowed input selections for this device. Both 169 change_mask and change_valu are mask bits according to 170 PVR_CVAL_INPUT_xxxx definitions. The change_mask parameter indicate 171 which settings are being changed and the change_val parameter indicates 172 whether corresponding settings are being set or cleared. */ 173int pvr2_hdw_set_input_allowed(struct pvr2_hdw *, 174 unsigned int change_mask, 175 unsigned int change_val); 176 177/* Return name for this driver instance */ 178const char *pvr2_hdw_get_driver_name(struct pvr2_hdw *); 179 180/* Mark tuner status stale so that it will be re-fetched */ 181void pvr2_hdw_execute_tuner_poll(struct pvr2_hdw *); 182 183/* Return information about the tuner */ 184int pvr2_hdw_get_tuner_status(struct pvr2_hdw *,struct v4l2_tuner *); 185 186/* Return information about cropping capabilities */ 187int pvr2_hdw_get_cropcap(struct pvr2_hdw *, struct v4l2_cropcap *); 188 189/* Query device and see if it thinks it is on a high-speed USB link */ 190int pvr2_hdw_is_hsm(struct pvr2_hdw *); 191 192/* Return a string token representative of the hardware type */ 193const char *pvr2_hdw_get_type(struct pvr2_hdw *); 194 195/* Return a single line description of the hardware type */ 196const char *pvr2_hdw_get_desc(struct pvr2_hdw *); 197 198/* Turn streaming on/off */ 199int pvr2_hdw_set_streaming(struct pvr2_hdw *,int); 200 201/* Find out if streaming is on */ 202int pvr2_hdw_get_streaming(struct pvr2_hdw *); 203 204/* Retrieve driver overall state */ 205int pvr2_hdw_get_state(struct pvr2_hdw *); 206 207/* Configure the type of stream to generate */ 208int pvr2_hdw_set_stream_type(struct pvr2_hdw *, enum pvr2_config); 209 210/* Get handle to video output stream */ 211struct pvr2_stream *pvr2_hdw_get_video_stream(struct pvr2_hdw *); 212 213/* Emit a video standard struct */ 214int pvr2_hdw_get_stdenum_value(struct pvr2_hdw *hdw,struct v4l2_standard *std, 215 unsigned int idx); 216 217/* Get the detected video standard */ 218int pvr2_hdw_get_detected_std(struct pvr2_hdw *hdw, v4l2_std_id *std); 219 220/* Enable / disable retrieval of CPU firmware or prom contents. This must 221 be enabled before pvr2_hdw_cpufw_get() will function. Note that doing 222 this may prevent the device from running (and leaving this mode may 223 imply a device reset). */ 224void pvr2_hdw_cpufw_set_enabled(struct pvr2_hdw *, 225 int mode, /* 0=8KB FX2, 1=16KB FX2, 2=PROM */ 226 int enable_flag); 227 228/* Return true if we're in a mode for retrieval CPU firmware */ 229int pvr2_hdw_cpufw_get_enabled(struct pvr2_hdw *); 230 231/* Retrieve a piece of the CPU's firmware at the given offset. Return 232 value is the number of bytes retrieved or zero if we're past the end or 233 an error otherwise (e.g. if firmware retrieval is not enabled). */ 234int pvr2_hdw_cpufw_get(struct pvr2_hdw *,unsigned int offs, 235 char *buf,unsigned int cnt); 236 237/* Retrieve a previously stored v4l minor device number */ 238int pvr2_hdw_v4l_get_minor_number(struct pvr2_hdw *,enum pvr2_v4l_type index); 239 240/* Store a v4l minor device number */ 241void pvr2_hdw_v4l_store_minor_number(struct pvr2_hdw *, 242 enum pvr2_v4l_type index,int); 243 244/* Direct read/write access to chip's registers: 245 match - specify criteria to identify target chip (this is a v4l dbg struct) 246 reg_id - register number to access 247 setFl - true to set the register, false to read it 248 val_ptr - storage location for source / result. */ 249int pvr2_hdw_register_access(struct pvr2_hdw *, 250 struct v4l2_dbg_match *match, u64 reg_id, 251 int setFl, u64 *val_ptr); 252 253/* The following entry points are all lower level things you normally don't 254 want to worry about. */ 255 256/* Issue a command and get a response from the device. LOTS of higher 257 level stuff is built on this. */ 258int pvr2_send_request(struct pvr2_hdw *, 259 void *write_ptr,unsigned int write_len, 260 void *read_ptr,unsigned int read_len); 261 262/* Slightly higher level device communication functions. */ 263int pvr2_write_register(struct pvr2_hdw *, u16, u32); 264 265/* Call if for any reason we can't talk to the hardware anymore - this will 266 cause the driver to stop flailing on the device. */ 267void pvr2_hdw_render_useless(struct pvr2_hdw *); 268 269/* Set / clear 8051's reset bit */ 270void pvr2_hdw_cpureset_assert(struct pvr2_hdw *,int); 271 272/* Execute a USB-commanded device reset */ 273void pvr2_hdw_device_reset(struct pvr2_hdw *); 274 275/* Reset worker's error trapping circuit breaker */ 276int pvr2_hdw_untrip(struct pvr2_hdw *); 277 278/* Execute hard reset command (after this point it's likely that the 279 encoder will have to be reconfigured). This also clears the "useless" 280 state. */ 281int pvr2_hdw_cmd_deep_reset(struct pvr2_hdw *); 282 283/* Execute simple reset command */ 284int pvr2_hdw_cmd_powerup(struct pvr2_hdw *); 285 286/* suspend */ 287int pvr2_hdw_cmd_powerdown(struct pvr2_hdw *); 288 289/* Order decoder to reset */ 290int pvr2_hdw_cmd_decoder_reset(struct pvr2_hdw *); 291 292/* Direct manipulation of GPIO bits */ 293int pvr2_hdw_gpio_get_dir(struct pvr2_hdw *hdw,u32 *); 294int pvr2_hdw_gpio_get_out(struct pvr2_hdw *hdw,u32 *); 295int pvr2_hdw_gpio_get_in(struct pvr2_hdw *hdw,u32 *); 296int pvr2_hdw_gpio_chg_dir(struct pvr2_hdw *hdw,u32 msk,u32 val); 297int pvr2_hdw_gpio_chg_out(struct pvr2_hdw *hdw,u32 msk,u32 val); 298 299/* This data structure is specifically for the next function... */ 300struct pvr2_hdw_debug_info { 301 int big_lock_held; 302 int ctl_lock_held; 303 int flag_disconnected; 304 int flag_init_ok; 305 int flag_ok; 306 int fw1_state; 307 int flag_decoder_missed; 308 int flag_tripped; 309 int state_encoder_ok; 310 int state_encoder_run; 311 int state_decoder_run; 312 int state_decoder_ready; 313 int state_usbstream_run; 314 int state_decoder_quiescent; 315 int state_pipeline_config; 316 int state_pipeline_req; 317 int state_pipeline_pause; 318 int state_pipeline_idle; 319 int cmd_debug_state; 320 int cmd_debug_write_len; 321 int cmd_debug_read_len; 322 int cmd_debug_write_pend; 323 int cmd_debug_read_pend; 324 int cmd_debug_timeout; 325 int cmd_debug_rstatus; 326 int cmd_debug_wstatus; 327 unsigned char cmd_code; 328}; 329 330/* Non-intrusively retrieve internal state info - this is useful for 331 diagnosing lockups. Note that this operation is completed without any 332 kind of locking and so it is not atomic and may yield inconsistent 333 results. This is *purely* a debugging aid. */ 334void pvr2_hdw_get_debug_info_unlocked(const struct pvr2_hdw *hdw, 335 struct pvr2_hdw_debug_info *); 336 337/* Intrusively retrieve internal state info - this is useful for 338 diagnosing overall driver state. This operation synchronizes against 339 the overall driver mutex - so if there are locking problems this will 340 likely hang! This is *purely* a debugging aid. */ 341void pvr2_hdw_get_debug_info_locked(struct pvr2_hdw *hdw, 342 struct pvr2_hdw_debug_info *); 343 344/* Report out several lines of text that describes driver internal state. 345 Results are written into the passed-in buffer. */ 346unsigned int pvr2_hdw_state_report(struct pvr2_hdw *hdw, 347 char *buf_ptr,unsigned int buf_size); 348 349/* Cause modules to log their state once */ 350void pvr2_hdw_trigger_module_log(struct pvr2_hdw *hdw); 351 352/* Cause encoder firmware to be uploaded into the device. This is normally 353 done autonomously, but the interface is exported here because it is also 354 a debugging aid. */ 355int pvr2_upload_firmware2(struct pvr2_hdw *hdw); 356 357#endif /* __PVRUSB2_HDW_H */ 358 359/* 360 Stuff for Emacs to see, in order to encourage consistent editing style: 361 *** Local Variables: *** 362 *** mode: c *** 363 *** fill-column: 75 *** 364 *** tab-width: 8 *** 365 *** c-basic-offset: 8 *** 366 *** End: *** 367 */ 368