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_INTERNAL_H
22 #define __PVRUSB2_HDW_INTERNAL_H
26 This header sets up all the internal structures and definitions needed to
27 track and coordinate the driver's interaction with the hardware. ONLY
28 source files which actually implement part of that whole circus should be
29 including this header. Higher levels, like the external layers to the
30 various public APIs (V4L, sysfs, etc) should NOT ever include this
31 private, internal header. This means that pvrusb2-hdw, pvrusb2-encoder,
32 etc will include this, but pvrusb2-v4l should not.
36 #include <linux/videodev2.h>
37 #include <linux/i2c.h>
38 #include <linux/workqueue.h>
39 #include <linux/mutex.h>
40 #include "pvrusb2-hdw.h"
41 #include "pvrusb2-io.h"
42 #include <media/cx2341x.h>
44 /* Legal values for PVR2_CID_HSM */
45 #define PVR2_CVAL_HSM_FAIL 0
46 #define PVR2_CVAL_HSM_FULL 1
47 #define PVR2_CVAL_HSM_HIGH 2
49 #define PVR2_VID_ENDPOINT 0x84
50 #define PVR2_UNK_ENDPOINT 0x86 /* maybe raw yuv ? */
51 #define PVR2_VBI_ENDPOINT 0x88
53 #define PVR2_CTL_BUFFSIZE 64
55 #define FREQTABLE_SIZE 500
57 #define LOCK_TAKE(x) do { mutex_lock(&x##_mutex); x##_held = !0; } while (0)
58 #define LOCK_GIVE(x) do { x##_held = 0; mutex_unlock(&x##_mutex); } while (0)
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,
72 typedef unsigned int (*pvr2_ctlf_get_v4lflags)(struct pvr2_ctrl *);
74 /* This structure describes a specific control. A table of these is set up
76 struct pvr2_ctl_info {
77 /* Control's name suitable for use as an identifier */
80 /* Short description of control */
83 /* Control's implementation */
84 pvr2_ctlf_get_value get_value; /* Get its value */
85 pvr2_ctlf_get_value get_min_value; /* Get minimum allowed value */
86 pvr2_ctlf_get_value get_max_value; /* Get maximum allowed value */
87 pvr2_ctlf_set_value set_value; /* Set its value */
88 pvr2_ctlf_check_value check_value; /* Check that value is valid */
89 pvr2_ctlf_val_to_sym val_to_sym; /* Custom convert value->symbol */
90 pvr2_ctlf_sym_to_val sym_to_val; /* Custom convert symbol->value */
91 pvr2_ctlf_is_dirty is_dirty; /* Return true if dirty */
92 pvr2_ctlf_clear_dirty clear_dirty; /* Clear dirty state */
93 pvr2_ctlf_get_v4lflags get_v4lflags;/* Retrieve v4l flags */
95 /* Control's type (int, enum, bitmask) */
96 enum pvr2_ctl_type type;
98 /* Associated V4L control ID, if any */
101 /* Associated driver internal ID, if any */
104 /* Don't implicitly initialize this control's value */
107 /* Starting value for this control */
110 /* Type-specific control information */
112 struct { /* Integer control */
113 long min_value; /* lower limit */
114 long max_value; /* upper limit */
116 struct { /* enumerated control */
117 unsigned int count; /* enum value count */
118 const char **value_names; /* symbol names */
120 struct { /* bitmask control */
121 unsigned int valid_bits; /* bits in use */
122 const char **bit_names; /* symbol name/bit */
128 /* Same as pvr2_ctl_info, but includes storage for the control description */
129 #define PVR2_CTLD_INFO_DESC_SIZE 32
130 struct pvr2_ctld_info {
131 struct pvr2_ctl_info info;
132 char desc[PVR2_CTLD_INFO_DESC_SIZE];
136 const struct pvr2_ctl_info *info;
137 struct pvr2_hdw *hdw;
141 struct pvr2_decoder_ctrl {
143 void (*detach)(void *);
144 void (*enable)(void *,int);
145 void (*force_reset)(void *);
148 #define PVR2_I2C_PEND_DETECT 0x01 /* Need to detect a client type */
149 #define PVR2_I2C_PEND_CLIENT 0x02 /* Client needs a specific update */
150 #define PVR2_I2C_PEND_REFRESH 0x04 /* Client has specific pending bits */
151 #define PVR2_I2C_PEND_STALE 0x08 /* Broadcast pending bits */
153 #define PVR2_I2C_PEND_ALL (PVR2_I2C_PEND_DETECT |\
154 PVR2_I2C_PEND_CLIENT |\
155 PVR2_I2C_PEND_REFRESH |\
158 /* Disposition of firmware1 loading situation */
159 #define FW1_STATE_UNKNOWN 0
160 #define FW1_STATE_MISSING 1
161 #define FW1_STATE_FAILED 2
162 #define FW1_STATE_RELOAD 3
163 #define FW1_STATE_OK 4
165 /* Known major hardware variants, keyed from device ID */
166 #define PVR2_HDW_TYPE_29XXX 0
167 #define PVR2_HDW_TYPE_24XXX 1
169 typedef int (*pvr2_i2c_func)(struct pvr2_hdw *,u8,u8 *,u16,u8 *, u16);
170 #define PVR2_I2C_FUNC_CNT 128
172 /* This structure contains all state data directly needed to
173 manipulate the hardware (as opposed to complying with a kernel
176 /* Underlying USB device handle */
177 struct usb_device *usb_dev;
178 struct usb_interface *usb_intf;
180 /* Device type, one of PVR2_HDW_TYPE_xxxxx */
181 unsigned int hdw_type;
183 /* Kernel worker thread handling */
184 struct workqueue_struct *workqueue;
185 struct work_struct workpoll; /* Update driver state */
186 struct work_struct worki2csync; /* Update i2c clients */
187 struct work_struct workinit; /* Driver initialization sequence */
190 struct pvr2_stream *vid_stream;
192 /* Mutex for all hardware state control */
193 struct mutex big_lock_mutex;
194 int big_lock_held; /* For debugging */
199 struct i2c_adapter i2c_adap;
200 struct i2c_algorithm i2c_algo;
201 pvr2_i2c_func i2c_func[PVR2_I2C_FUNC_CNT];
202 int i2c_cx25840_hack_state;
204 unsigned int i2c_pend_types; /* Which types of update are needed */
205 unsigned long i2c_pend_mask; /* Change bits we need to scan */
206 unsigned long i2c_stale_mask; /* Pending broadcast change bits */
207 unsigned long i2c_active_mask; /* All change bits currently in use */
208 struct list_head i2c_clients;
209 struct mutex i2c_list_lock;
211 /* Frequency table */
212 unsigned int freqTable[FREQTABLE_SIZE];
213 unsigned int freqProgSlot;
215 /* Stuff for handling low level control interaction with device */
216 struct mutex ctl_lock_mutex;
217 int ctl_lock_held; /* For debugging */
218 struct urb *ctl_write_urb;
219 struct urb *ctl_read_urb;
220 unsigned char *ctl_write_buffer;
221 unsigned char *ctl_read_buffer;
222 volatile int ctl_write_pend_flag;
223 volatile int ctl_read_pend_flag;
224 volatile int ctl_timeout_flag;
225 struct completion ctl_done;
226 unsigned char cmd_buffer[PVR2_CTL_BUFFSIZE];
227 int cmd_debug_state; // Low level command debugging info
228 unsigned char cmd_debug_code; //
229 unsigned int cmd_debug_write_len; //
230 unsigned int cmd_debug_read_len; //
232 /* Bits of state that describe what is going on with various parts
234 volatile int state_encoder_ok; /* Encoder is operational */
235 volatile int state_encoder_run; /* Encoder is running */
236 volatile int state_encoder_config; /* Encoder is configured */
237 volatile int state_encoder_waitok; /* Encoder pre-wait done */
238 volatile int state_decoder_run; /* Decoder is running */
239 volatile int state_usbstream_run; /* FX2 is streaming */
240 volatile int state_decoder_quiescent; /* Decoder idle for > 50msec */
241 volatile 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 */
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
250 unsigned int master_state;
252 /* True if states must be re-evaluated */
255 void (*state_func)(void *);
258 /* Timer for measuring decoder settling time */
259 struct timer_list quiescent_timer;
261 /* Timer for measuring encoder pre-wait time */
262 struct timer_list encoder_wait_timer;
264 /* Place to block while waiting for state changes */
265 wait_queue_head_t state_wait_data;
268 int flag_ok; /* device in known good state */
269 int flag_disconnected; /* flag_ok == 0 due to disconnect */
270 int flag_init_ok; /* true if structure is fully initialized */
271 int fw1_state; /* current situation with fw1 */
272 int flag_decoder_missed;/* We've noticed missing decoder */
273 int flag_tripped; /* Indicates overall failure to start */
275 struct pvr2_decoder_ctrl *decoder_ctrl;
277 // CPU firmware info (used to help find / save firmware data)
279 unsigned int fw_size;
280 int fw_cpu_flag; /* True if we are dealing with the CPU */
282 // True if there is a request to trigger logging of state in each
286 /* Tuner / frequency control stuff */
287 unsigned int tuner_type;
289 unsigned int freqValTelevision; /* Current freq for tv mode */
290 unsigned int freqValRadio; /* Current freq for radio mode */
291 unsigned int freqSlotTelevision; /* Current slot for tv mode */
292 unsigned int freqSlotRadio; /* Current slot for radio mode */
293 unsigned int freqSelector; /* 0=radio 1=television */
296 /* Current tuner info - this information is polled from the I2C bus */
297 struct v4l2_tuner tuner_signal_info;
298 int tuner_signal_stale;
300 /* Video standard handling */
301 v4l2_std_id std_mask_eeprom; // Hardware supported selections
302 v4l2_std_id std_mask_avail; // Which standards we may select from
303 v4l2_std_id std_mask_cur; // Currently selected standard(s)
304 unsigned int std_enum_cnt; // # of enumerated standards
305 int std_enum_cur; // selected standard enumeration value
306 int std_dirty; // True if std_mask_cur has changed
307 struct pvr2_ctl_info std_info_enum;
308 struct pvr2_ctl_info std_info_avail;
309 struct pvr2_ctl_info std_info_cur;
310 struct v4l2_standard *std_defs;
311 const char **std_enum_names;
313 // Generated string names, one per actual V4L2 standard
314 const char *std_mask_ptrs[32];
315 char std_mask_names[32][10];
317 int unit_number; /* ID for driver instance */
318 unsigned long serial_number; /* ID for hardware itself */
320 char bus_info[32]; /* Bus location info */
322 /* Minor numbers used by v4l logic (yes, this is a hack, as there
323 should be no v4l junk here). Probably a better way to do this. */
324 int v4l_minor_number_video;
325 int v4l_minor_number_vbi;
326 int v4l_minor_number_radio;
328 /* Location of eeprom or a negative number if none */
331 enum pvr2_config active_stream_type;
332 enum pvr2_config desired_stream_type;
334 /* Control state needed for cx2341x module */
335 struct cx2341x_mpeg_params enc_cur_state;
336 struct cx2341x_mpeg_params enc_ctl_state;
337 /* True if an encoder attribute has changed */
339 /* True if an unsafe encoder attribute has changed */
340 int enc_unsafe_stale;
341 /* True if enc_cur_state is valid */
345 #define VCREATE_DATA(lab) int lab##_val; int lab##_dirty
346 VCREATE_DATA(brightness);
347 VCREATE_DATA(contrast);
348 VCREATE_DATA(saturation);
350 VCREATE_DATA(volume);
351 VCREATE_DATA(balance);
353 VCREATE_DATA(treble);
356 VCREATE_DATA(audiomode);
357 VCREATE_DATA(res_hor);
358 VCREATE_DATA(res_ver);
362 struct pvr2_ctld_info *mpeg_ctrl_info;
364 struct pvr2_ctrl *controls;
365 unsigned int control_cnt;
368 /* This function gets the current frequency */
369 unsigned long pvr2_hdw_get_cur_freq(struct pvr2_hdw *);
370 void pvr2_hdw_set_decoder(struct pvr2_hdw *,struct pvr2_decoder_ctrl *);
372 #endif /* __PVRUSB2_HDW_INTERNAL_H */
375 Stuff for Emacs to see, in order to encourage consistent editing style:
376 *** Local Variables: ***
378 *** fill-column: 75 ***
380 *** c-basic-offset: 8 ***