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_INTERNAL_H 21 #define __PVRUSB2_HDW_INTERNAL_H 22 23 /* 24 25 This header sets up all the internal structures and definitions needed to 26 track and coordinate the driver's interaction with the hardware. ONLY 27 source files which actually implement part of that whole circus should be 28 including this header. Higher levels, like the external layers to the 29 various public APIs (V4L, sysfs, etc) should NOT ever include this 30 private, internal header. This means that pvrusb2-hdw, pvrusb2-encoder, 31 etc will include this, but pvrusb2-v4l should not. 32 33 */ 34 35 #include <linux/videodev2.h> 36 #include <linux/i2c.h> 37 #include <linux/workqueue.h> 38 #include <linux/mutex.h> 39 #include "pvrusb2-hdw.h" 40 #include "pvrusb2-io.h" 41 #include <media/v4l2-device.h> 42 #include <media/cx2341x.h> 43 #include <media/ir-kbd-i2c.h> 44 #include "pvrusb2-devattr.h" 45 46 /* Legal values for PVR2_CID_HSM */ 47 #define PVR2_CVAL_HSM_FAIL 0 48 #define PVR2_CVAL_HSM_FULL 1 49 #define PVR2_CVAL_HSM_HIGH 2 50 51 #define PVR2_VID_ENDPOINT 0x84 52 #define PVR2_UNK_ENDPOINT 0x86 /* maybe raw yuv ? */ 53 #define PVR2_VBI_ENDPOINT 0x88 54 55 #define PVR2_CTL_BUFFSIZE 64 56 57 #define FREQTABLE_SIZE 500 58 59 #define LOCK_TAKE(x) do { mutex_lock(&x##_mutex); x##_held = !0; } while (0) 60 #define LOCK_GIVE(x) do { x##_held = 0; mutex_unlock(&x##_mutex); } while (0) 61 62 typedef int (*pvr2_ctlf_is_dirty)(struct pvr2_ctrl *); 63 typedef void (*pvr2_ctlf_clear_dirty)(struct pvr2_ctrl *); 64 typedef int (*pvr2_ctlf_check_value)(struct pvr2_ctrl *,int); 65 typedef int (*pvr2_ctlf_get_value)(struct pvr2_ctrl *,int *); 66 typedef int (*pvr2_ctlf_set_value)(struct pvr2_ctrl *,int msk,int val); 67 typedef int (*pvr2_ctlf_val_to_sym)(struct pvr2_ctrl *,int msk,int val, 68 char *,unsigned int,unsigned int *); 69 typedef int (*pvr2_ctlf_sym_to_val)(struct pvr2_ctrl *, 70 const char *,unsigned int, 71 int *mskp,int *valp); 72 typedef unsigned int (*pvr2_ctlf_get_v4lflags)(struct pvr2_ctrl *); 73 74 /* This structure describes a specific control. A table of these is set up 75 in pvrusb2-hdw.c. */ 76 struct pvr2_ctl_info { 77 /* Control's name suitable for use as an identifier */ 78 const char *name; 79 80 /* Short description of control */ 81 const char *desc; 82 83 /* Control's implementation */ 84 pvr2_ctlf_get_value get_value; /* Get its value */ 85 pvr2_ctlf_get_value get_def_value; /* Get its default value */ 86 pvr2_ctlf_get_value get_min_value; /* Get minimum allowed value */ 87 pvr2_ctlf_get_value get_max_value; /* Get maximum allowed value */ 88 pvr2_ctlf_set_value set_value; /* Set its value */ 89 pvr2_ctlf_check_value check_value; /* Check that value is valid */ 90 pvr2_ctlf_val_to_sym val_to_sym; /* Custom convert value->symbol */ 91 pvr2_ctlf_sym_to_val sym_to_val; /* Custom convert symbol->value */ 92 pvr2_ctlf_is_dirty is_dirty; /* Return true if dirty */ 93 pvr2_ctlf_clear_dirty clear_dirty; /* Clear dirty state */ 94 pvr2_ctlf_get_v4lflags get_v4lflags;/* Retrieve v4l flags */ 95 96 /* Control's type (int, enum, bitmask) */ 97 enum pvr2_ctl_type type; 98 99 /* Associated V4L control ID, if any */ 100 int v4l_id; 101 102 /* Associated driver internal ID, if any */ 103 int internal_id; 104 105 /* Don't implicitly initialize this control's value */ 106 int skip_init; 107 108 /* Starting value for this control */ 109 int default_value; 110 111 /* Type-specific control information */ 112 union { 113 struct { /* Integer control */ 114 long min_value; /* lower limit */ 115 long max_value; /* upper limit */ 116 } type_int; 117 struct { /* enumerated control */ 118 unsigned int count; /* enum value count */ 119 const char * const *value_names; /* symbol names */ 120 } type_enum; 121 struct { /* bitmask control */ 122 unsigned int valid_bits; /* bits in use */ 123 const char **bit_names; /* symbol name/bit */ 124 } type_bitmask; 125 } def; 126 }; 127 128 129 /* Same as pvr2_ctl_info, but includes storage for the control description */ 130 #define PVR2_CTLD_INFO_DESC_SIZE 32 131 struct pvr2_ctld_info { 132 struct pvr2_ctl_info info; 133 char desc[PVR2_CTLD_INFO_DESC_SIZE]; 134 }; 135 136 struct pvr2_ctrl { 137 const struct pvr2_ctl_info *info; 138 struct pvr2_hdw *hdw; 139 }; 140 141 142 143 /* Disposition of firmware1 loading situation */ 144 #define FW1_STATE_UNKNOWN 0 145 #define FW1_STATE_MISSING 1 146 #define FW1_STATE_FAILED 2 147 #define FW1_STATE_RELOAD 3 148 #define FW1_STATE_OK 4 149 150 /* What state the device is in if it is a hybrid */ 151 #define PVR2_PATHWAY_UNKNOWN 0 152 #define PVR2_PATHWAY_ANALOG 1 153 #define PVR2_PATHWAY_DIGITAL 2 154 155 typedef int (*pvr2_i2c_func)(struct pvr2_hdw *,u8,u8 *,u16,u8 *, u16); 156 #define PVR2_I2C_FUNC_CNT 128 157 158 /* This structure contains all state data directly needed to 159 manipulate the hardware (as opposed to complying with a kernel 160 interface) */ 161 struct pvr2_hdw { 162 /* Underlying USB device handle */ 163 struct usb_device *usb_dev; 164 struct usb_interface *usb_intf; 165 166 /* Our handle into the v4l2 sub-device architecture */ 167 struct v4l2_device v4l2_dev; 168 /* Device description, anything that must adjust behavior based on 169 device specific info will use information held here. */ 170 const struct pvr2_device_desc *hdw_desc; 171 172 /* Kernel worker thread handling */ 173 struct workqueue_struct *workqueue; 174 struct work_struct workpoll; /* Update driver state */ 175 176 /* Video spigot */ 177 struct pvr2_stream *vid_stream; 178 179 /* Mutex for all hardware state control */ 180 struct mutex big_lock_mutex; 181 int big_lock_held; /* For debugging */ 182 183 /* This is a simple string which identifies the instance of this 184 driver. It is unique within the set of existing devices, but 185 there is no attempt to keep the name consistent with the same 186 physical device each time. */ 187 char name[32]; 188 189 /* This is a simple string which identifies the physical device 190 instance itself - if possible. (If not possible, then it is 191 based on the specific driver instance, similar to name above.) 192 The idea here is that userspace might hopefully be able to use 193 this recognize specific tuners. It will encode a serial number, 194 if available. */ 195 char identifier[32]; 196 197 /* I2C stuff */ 198 struct i2c_adapter i2c_adap; 199 struct i2c_algorithm i2c_algo; 200 pvr2_i2c_func i2c_func[PVR2_I2C_FUNC_CNT]; 201 int i2c_cx25840_hack_state; 202 int i2c_linked; 203 204 /* IR related */ 205 unsigned int ir_scheme_active; /* IR scheme as seen from the outside */ 206 struct IR_i2c_init_data ir_init_data; /* params passed to IR modules */ 207 208 /* Frequency table */ 209 unsigned int freqTable[FREQTABLE_SIZE]; 210 unsigned int freqProgSlot; 211 212 /* Stuff for handling low level control interaction with device */ 213 struct mutex ctl_lock_mutex; 214 int ctl_lock_held; /* For debugging */ 215 struct urb *ctl_write_urb; 216 struct urb *ctl_read_urb; 217 unsigned char *ctl_write_buffer; 218 unsigned char *ctl_read_buffer; 219 int ctl_write_pend_flag; 220 int ctl_read_pend_flag; 221 int ctl_timeout_flag; 222 struct completion ctl_done; 223 unsigned char cmd_buffer[PVR2_CTL_BUFFSIZE]; 224 int cmd_debug_state; // Low level command debugging info 225 unsigned char cmd_debug_code; // 226 unsigned int cmd_debug_write_len; // 227 unsigned int cmd_debug_read_len; // 228 229 /* Bits of state that describe what is going on with various parts 230 of the driver. */ 231 int state_pathway_ok; /* Pathway config is ok */ 232 int state_encoder_ok; /* Encoder is operational */ 233 int state_encoder_run; /* Encoder is running */ 234 int state_encoder_config; /* Encoder is configured */ 235 int state_encoder_waitok; /* Encoder pre-wait done */ 236 int state_encoder_runok; /* Encoder has run for >= .25 sec */ 237 int state_decoder_run; /* Decoder is running */ 238 int state_decoder_ready; /* Decoder is stabilized & streamable */ 239 int state_usbstream_run; /* FX2 is streaming */ 240 int state_decoder_quiescent; /* Decoder idle for minimal interval */ 241 int state_pipeline_config; /* Pipeline is configured */ 242 int state_pipeline_req; /* Somebody wants to stream */ 243 int state_pipeline_pause; /* Pipeline must be paused */ 244 int state_pipeline_idle; /* Pipeline not running */ 245 246 /* This is the master state of the driver. It is the combined 247 result of other bits of state. Examining this will indicate the 248 overall state of the driver. Values here are one of 249 PVR2_STATE_xxxx */ 250 unsigned int master_state; 251 252 /* True if device led is currently on */ 253 int led_on; 254 255 /* True if states must be re-evaluated */ 256 int state_stale; 257 258 void (*state_func)(void *); 259 void *state_data; 260 261 /* Timer for measuring required decoder settling time before we're 262 allowed to fire it up again. */ 263 struct timer_list quiescent_timer; 264 265 /* Timer for measuring decoder stabilization time, which is the 266 amount of time we need to let the decoder run before we can 267 trust its output (otherwise the encoder might see garbage and 268 then fail to start correctly). */ 269 struct timer_list decoder_stabilization_timer; 270 271 /* Timer for measuring encoder pre-wait time */ 272 struct timer_list encoder_wait_timer; 273 274 /* Timer for measuring encoder minimum run time */ 275 struct timer_list encoder_run_timer; 276 277 /* Place to block while waiting for state changes */ 278 wait_queue_head_t state_wait_data; 279 280 281 int force_dirty; /* consider all controls dirty if true */ 282 int flag_ok; /* device in known good state */ 283 int flag_modulefail; /* true if at least one module failed to load */ 284 int flag_disconnected; /* flag_ok == 0 due to disconnect */ 285 int flag_init_ok; /* true if structure is fully initialized */ 286 int fw1_state; /* current situation with fw1 */ 287 int pathway_state; /* one of PVR2_PATHWAY_xxx */ 288 int flag_decoder_missed;/* We've noticed missing decoder */ 289 int flag_tripped; /* Indicates overall failure to start */ 290 291 unsigned int decoder_client_id; 292 293 // CPU firmware info (used to help find / save firmware data) 294 char *fw_buffer; 295 unsigned int fw_size; 296 int fw_cpu_flag; /* True if we are dealing with the CPU */ 297 298 /* Tuner / frequency control stuff */ 299 unsigned int tuner_type; 300 int tuner_updated; 301 unsigned int freqValTelevision; /* Current freq for tv mode */ 302 unsigned int freqValRadio; /* Current freq for radio mode */ 303 unsigned int freqSlotTelevision; /* Current slot for tv mode */ 304 unsigned int freqSlotRadio; /* Current slot for radio mode */ 305 unsigned int freqSelector; /* 0=radio 1=television */ 306 int freqDirty; 307 308 /* Current tuner info - this information is polled from the I2C bus */ 309 struct v4l2_tuner tuner_signal_info; 310 int tuner_signal_stale; 311 312 /* Cropping capability info */ 313 struct v4l2_cropcap cropcap_info; 314 int cropcap_stale; 315 316 /* Video standard handling */ 317 v4l2_std_id std_mask_eeprom; // Hardware supported selections 318 v4l2_std_id std_mask_avail; // Which standards we may select from 319 v4l2_std_id std_mask_cur; // Currently selected standard(s) 320 unsigned int std_enum_cnt; // # of enumerated standards 321 int std_enum_cur; // selected standard enumeration value 322 int std_dirty; // True if std_mask_cur has changed 323 struct pvr2_ctl_info std_info_enum; 324 struct pvr2_ctl_info std_info_avail; 325 struct pvr2_ctl_info std_info_cur; 326 struct v4l2_standard *std_defs; 327 const char **std_enum_names; 328 329 // Generated string names, one per actual V4L2 standard 330 const char *std_mask_ptrs[32]; 331 char std_mask_names[32][10]; 332 333 int unit_number; /* ID for driver instance */ 334 unsigned long serial_number; /* ID for hardware itself */ 335 336 char bus_info[32]; /* Bus location info */ 337 338 /* Minor numbers used by v4l logic (yes, this is a hack, as there 339 should be no v4l junk here). Probably a better way to do this. */ 340 int v4l_minor_number_video; 341 int v4l_minor_number_vbi; 342 int v4l_minor_number_radio; 343 344 /* Bit mask of PVR2_CVAL_INPUT choices which are valid for the hardware */ 345 unsigned int input_avail_mask; 346 /* Bit mask of PVR2_CVAL_INPUT choices which are currently allowed */ 347 unsigned int input_allowed_mask; 348 349 /* Location of eeprom or a negative number if none */ 350 int eeprom_addr; 351 352 enum pvr2_config active_stream_type; 353 enum pvr2_config desired_stream_type; 354 355 /* Control state needed for cx2341x module */ 356 struct cx2341x_mpeg_params enc_cur_state; 357 struct cx2341x_mpeg_params enc_ctl_state; 358 /* True if an encoder attribute has changed */ 359 int enc_stale; 360 /* True if an unsafe encoder attribute has changed */ 361 int enc_unsafe_stale; 362 /* True if enc_cur_state is valid */ 363 int enc_cur_valid; 364 365 /* Control state */ 366 #define VCREATE_DATA(lab) int lab##_val; int lab##_dirty 367 VCREATE_DATA(brightness); 368 VCREATE_DATA(contrast); 369 VCREATE_DATA(saturation); 370 VCREATE_DATA(hue); 371 VCREATE_DATA(volume); 372 VCREATE_DATA(balance); 373 VCREATE_DATA(bass); 374 VCREATE_DATA(treble); 375 VCREATE_DATA(mute); 376 VCREATE_DATA(cropl); 377 VCREATE_DATA(cropt); 378 VCREATE_DATA(cropw); 379 VCREATE_DATA(croph); 380 VCREATE_DATA(input); 381 VCREATE_DATA(audiomode); 382 VCREATE_DATA(res_hor); 383 VCREATE_DATA(res_ver); 384 VCREATE_DATA(srate); 385 #undef VCREATE_DATA 386 387 struct pvr2_ctld_info *mpeg_ctrl_info; 388 389 struct pvr2_ctrl *controls; 390 unsigned int control_cnt; 391 }; 392 393 /* This function gets the current frequency */ 394 unsigned long pvr2_hdw_get_cur_freq(struct pvr2_hdw *); 395 396 void pvr2_hdw_status_poll(struct pvr2_hdw *); 397 398 #endif /* __PVRUSB2_HDW_INTERNAL_H */ 399 400 /* 401 Stuff for Emacs to see, in order to encourage consistent editing style: 402 *** Local Variables: *** 403 *** mode: c *** 404 *** fill-column: 75 *** 405 *** tab-width: 8 *** 406 *** c-basic-offset: 8 *** 407 *** End: *** 408 */ 409