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_SVIDEO 1
44 #define PVR2_CVAL_INPUT_COMPOSITE 2
45 #define PVR2_CVAL_INPUT_RADIO 3
47 /* Values that pvr2_hdw_get_signal_status() returns */
48 #define PVR2_SIGNAL_OK 0x0001
49 #define PVR2_SIGNAL_STEREO 0x0002
50 #define PVR2_SIGNAL_SAP 0x0004
53 /* Subsystem definitions - these are various pieces that can be
54 independently stopped / started. Usually you don't want to mess with
55 this directly (let the driver handle things itself), but it is useful
57 #define PVR2_SUBSYS_B_ENC_FIRMWARE 0
58 #define PVR2_SUBSYS_B_ENC_CFG 1
59 #define PVR2_SUBSYS_B_DIGITIZER_RUN 2
60 #define PVR2_SUBSYS_B_USBSTREAM_RUN 3
61 #define PVR2_SUBSYS_B_ENC_RUN 4
63 #define PVR2_SUBSYS_CFG_ALL ( \
64 (1 << PVR2_SUBSYS_B_ENC_FIRMWARE) | \
65 (1 << PVR2_SUBSYS_B_ENC_CFG) )
66 #define PVR2_SUBSYS_RUN_ALL ( \
67 (1 << PVR2_SUBSYS_B_DIGITIZER_RUN) | \
68 (1 << PVR2_SUBSYS_B_USBSTREAM_RUN) | \
69 (1 << PVR2_SUBSYS_B_ENC_RUN) )
70 #define PVR2_SUBSYS_ALL ( \
71 PVR2_SUBSYS_CFG_ALL | \
87 const char *pvr2_config_get_name(enum pvr2_config);
91 /* Create and return a structure for interacting with the underlying
93 struct pvr2_hdw *pvr2_hdw_create(struct usb_interface *intf,
94 const struct usb_device_id *devid);
96 /* Poll for background activity (if any) */
97 void pvr2_hdw_poll(struct pvr2_hdw *);
99 /* Trigger a poll to take place later at a convenient time */
100 void pvr2_hdw_poll_trigger_unlocked(struct pvr2_hdw *);
102 /* Register a callback used to trigger a future poll */
103 void pvr2_hdw_setup_poll_trigger(struct pvr2_hdw *,
104 void (*func)(void *),
107 /* Destroy hardware interaction structure */
108 void pvr2_hdw_destroy(struct pvr2_hdw *);
110 /* Set up the structure and attempt to put the device into a usable state.
111 This can be a time-consuming operation, which is why it is not done
112 internally as part of the create() step. Return value is exactly the
113 same as pvr2_hdw_init_ok(). */
114 int pvr2_hdw_setup(struct pvr2_hdw *);
116 /* Initialization succeeded */
117 int pvr2_hdw_init_ok(struct pvr2_hdw *);
119 /* Return true if in the ready (normal) state */
120 int pvr2_hdw_dev_ok(struct pvr2_hdw *);
122 /* Return small integer number [1..N] for logical instance number of this
123 device. This is useful for indexing array-valued module parameters. */
124 int pvr2_hdw_get_unit_number(struct pvr2_hdw *);
126 /* Get pointer to underlying USB device */
127 struct usb_device *pvr2_hdw_get_dev(struct pvr2_hdw *);
129 /* Retrieve serial number of device */
130 unsigned long pvr2_hdw_get_sn(struct pvr2_hdw *);
132 /* Called when hardware has been unplugged */
133 void pvr2_hdw_disconnect(struct pvr2_hdw *);
135 /* Get the number of defined controls */
136 unsigned int pvr2_hdw_get_ctrl_count(struct pvr2_hdw *);
138 /* Retrieve a control handle given its index (0..count-1) */
139 struct pvr2_ctrl *pvr2_hdw_get_ctrl_by_index(struct pvr2_hdw *,unsigned int);
141 /* Retrieve a control handle given its internal ID (if any) */
142 struct pvr2_ctrl *pvr2_hdw_get_ctrl_by_id(struct pvr2_hdw *,unsigned int);
144 /* Retrieve a control handle given its V4L ID (if any) */
145 struct pvr2_ctrl *pvr2_hdw_get_ctrl_v4l(struct pvr2_hdw *,unsigned int ctl_id);
147 /* Retrieve a control handle given its immediate predecessor V4L ID (if any) */
148 struct pvr2_ctrl *pvr2_hdw_get_ctrl_nextv4l(struct pvr2_hdw *,
149 unsigned int ctl_id);
151 /* Commit all control changes made up to this point */
152 int pvr2_hdw_commit_ctl(struct pvr2_hdw *);
154 /* Return name for this driver instance */
155 const char *pvr2_hdw_get_driver_name(struct pvr2_hdw *);
157 /* Return PVR2_SIGNAL_XXXX bit mask indicating signal status */
158 unsigned int pvr2_hdw_get_signal_status(struct pvr2_hdw *);
160 /* Query device and see if it thinks it is on a high-speed USB link */
161 int pvr2_hdw_is_hsm(struct pvr2_hdw *);
163 /* Turn streaming on/off */
164 int pvr2_hdw_set_streaming(struct pvr2_hdw *,int);
166 /* Find out if streaming is on */
167 int pvr2_hdw_get_streaming(struct pvr2_hdw *);
169 /* Configure the type of stream to generate */
170 int pvr2_hdw_set_stream_type(struct pvr2_hdw *, enum pvr2_config);
172 /* Get handle to video output stream */
173 struct pvr2_stream *pvr2_hdw_get_video_stream(struct pvr2_hdw *);
175 /* Emit a video standard struct */
176 int pvr2_hdw_get_stdenum_value(struct pvr2_hdw *hdw,struct v4l2_standard *std,
179 /* Enable / disable various pieces of hardware. Items to change are
180 identified by bit positions within msk, and new state for each item is
181 identified by corresponding bit positions within val. */
182 void pvr2_hdw_subsys_bit_chg(struct pvr2_hdw *hdw,
183 unsigned long msk,unsigned long val);
185 /* Retrieve mask indicating which pieces of hardware are currently enabled
187 unsigned long pvr2_hdw_subsys_get(struct pvr2_hdw *);
189 /* Adjust mask of what get shut down when streaming is stopped. This is a
191 void pvr2_hdw_subsys_stream_bit_chg(struct pvr2_hdw *hdw,
192 unsigned long msk,unsigned long val);
194 /* Retrieve mask indicating which pieces of hardware are disabled when
195 streaming is turned off. */
196 unsigned long pvr2_hdw_subsys_stream_get(struct pvr2_hdw *);
199 /* Enable / disable retrieval of CPU firmware. This must be enabled before
200 pvr2_hdw_cpufw_get() will function. Note that doing this may prevent
201 the device from running (and leaving this mode may imply a device
203 void pvr2_hdw_cpufw_set_enabled(struct pvr2_hdw *, int enable_flag);
205 /* Return true if we're in a mode for retrieval CPU firmware */
206 int pvr2_hdw_cpufw_get_enabled(struct pvr2_hdw *);
208 /* Retrieve a piece of the CPU's firmware at the given offset. Return
209 value is the number of bytes retrieved or zero if we're past the end or
210 an error otherwise (e.g. if firmware retrieval is not enabled). */
211 int pvr2_hdw_cpufw_get(struct pvr2_hdw *,unsigned int offs,
212 char *buf,unsigned int cnt);
214 /* Retrieve a previously stored v4l minor device number */
215 int pvr2_hdw_v4l_get_minor_number(struct pvr2_hdw *,enum pvr2_v4l_type index);
217 /* Store a v4l minor device number */
218 void pvr2_hdw_v4l_store_minor_number(struct pvr2_hdw *,
219 enum pvr2_v4l_type index,int);
221 /* Direct read/write access to chip's registers:
222 chip_id - unique id of chip (e.g. I2C_DRIVERD_xxxx)
223 reg_id - register number to access
224 setFl - true to set the register, false to read it
225 val_ptr - storage location for source / result. */
226 int pvr2_hdw_register_access(struct pvr2_hdw *,
227 u32 chip_id,unsigned long reg_id,
228 int setFl,u32 *val_ptr);
230 /* The following entry points are all lower level things you normally don't
231 want to worry about. */
233 /* Issue a command and get a response from the device. LOTS of higher
234 level stuff is built on this. */
235 int pvr2_send_request(struct pvr2_hdw *,
236 void *write_ptr,unsigned int write_len,
237 void *read_ptr,unsigned int read_len);
239 /* Slightly higher level device communication functions. */
240 int pvr2_write_register(struct pvr2_hdw *, u16, u32);
242 /* Call if for any reason we can't talk to the hardware anymore - this will
243 cause the driver to stop flailing on the device. */
244 void pvr2_hdw_render_useless(struct pvr2_hdw *);
246 /* Set / clear 8051's reset bit */
247 void pvr2_hdw_cpureset_assert(struct pvr2_hdw *,int);
249 /* Execute a USB-commanded device reset */
250 void pvr2_hdw_device_reset(struct pvr2_hdw *);
252 /* Execute hard reset command (after this point it's likely that the
253 encoder will have to be reconfigured). This also clears the "useless"
255 int pvr2_hdw_cmd_deep_reset(struct pvr2_hdw *);
257 /* Execute simple reset command */
258 int pvr2_hdw_cmd_powerup(struct pvr2_hdw *);
260 /* Order decoder to reset */
261 int pvr2_hdw_cmd_decoder_reset(struct pvr2_hdw *);
263 /* Direct manipulation of GPIO bits */
264 int pvr2_hdw_gpio_get_dir(struct pvr2_hdw *hdw,u32 *);
265 int pvr2_hdw_gpio_get_out(struct pvr2_hdw *hdw,u32 *);
266 int pvr2_hdw_gpio_get_in(struct pvr2_hdw *hdw,u32 *);
267 int pvr2_hdw_gpio_chg_dir(struct pvr2_hdw *hdw,u32 msk,u32 val);
268 int pvr2_hdw_gpio_chg_out(struct pvr2_hdw *hdw,u32 msk,u32 val);
270 /* This data structure is specifically for the next function... */
271 struct pvr2_hdw_debug_info {
275 int flag_disconnected;
277 int flag_streaming_enabled;
278 unsigned long subsys_flags;
280 int cmd_debug_write_len;
281 int cmd_debug_read_len;
282 int cmd_debug_write_pend;
283 int cmd_debug_read_pend;
284 int cmd_debug_timeout;
285 int cmd_debug_rstatus;
286 int cmd_debug_wstatus;
287 unsigned char cmd_code;
290 /* Non-intrusively retrieve internal state info - this is useful for
291 diagnosing lockups. Note that this operation is completed without any
292 kind of locking and so it is not atomic and may yield inconsistent
293 results. This is *purely* a debugging aid. */
294 void pvr2_hdw_get_debug_info(const struct pvr2_hdw *hdw,
295 struct pvr2_hdw_debug_info *);
297 /* Cause modules to log their state once */
298 void pvr2_hdw_trigger_module_log(struct pvr2_hdw *hdw);
300 /* Cause encoder firmware to be uploaded into the device. This is normally
301 done autonomously, but the interface is exported here because it is also
303 int pvr2_upload_firmware2(struct pvr2_hdw *hdw);
305 /* List of device types that we can match */
306 extern struct usb_device_id pvr2_device_table[];
308 #endif /* __PVRUSB2_HDW_H */
311 Stuff for Emacs to see, in order to encourage consistent editing style:
312 *** Local Variables: ***
314 *** fill-column: 75 ***
316 *** c-basic-offset: 8 ***