Commit | Line | Data |
---|---|---|
53b0a1c6 HV |
1 | /* |
2 | * Programming the mspx4xx sound processor family | |
3 | * | |
4 | * (c) 1997-2001 Gerd Knorr <kraxel@bytesex.org> | |
5 | * | |
6 | * what works and what doesn't: | |
7 | * | |
8 | * AM-Mono | |
9 | * Support for Hauppauge cards added (decoding handled by tuner) added by | |
10 | * Frederic Crozat <fcrozat@mail.dotcom.fr> | |
11 | * | |
12 | * FM-Mono | |
13 | * should work. The stereo modes are backward compatible to FM-mono, | |
14 | * therefore FM-Mono should be allways available. | |
15 | * | |
16 | * FM-Stereo (B/G, used in germany) | |
17 | * should work, with autodetect | |
18 | * | |
19 | * FM-Stereo (satellite) | |
20 | * should work, no autodetect (i.e. default is mono, but you can | |
21 | * switch to stereo -- untested) | |
22 | * | |
23 | * NICAM (B/G, L , used in UK, Scandinavia, Spain and France) | |
24 | * should work, with autodetect. Support for NICAM was added by | |
25 | * Pekka Pietikainen <pp@netppl.fi> | |
26 | * | |
27 | * TODO: | |
28 | * - better SAT support | |
29 | * | |
30 | * 980623 Thomas Sailer (sailer@ife.ee.ethz.ch) | |
31 | * using soundcore instead of OSS | |
32 | * | |
33 | * This program is free software; you can redistribute it and/or | |
34 | * modify it under the terms of the GNU General Public License | |
35 | * as published by the Free Software Foundation; either version 2 | |
36 | * of the License, or (at your option) any later version. | |
37 | * | |
38 | * This program is distributed in the hope that it will be useful, | |
39 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
40 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
41 | * GNU General Public License for more details. | |
42 | * | |
43 | * You should have received a copy of the GNU General Public License | |
44 | * along with this program; if not, write to the Free Software | |
d52c7385 HV |
45 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
46 | * 02110-1301, USA. | |
53b0a1c6 HV |
47 | */ |
48 | ||
49 | ||
50 | #include <linux/kernel.h> | |
51 | #include <linux/module.h> | |
52 | #include <linux/slab.h> | |
53 | #include <linux/i2c.h> | |
76efd62f HV |
54 | #include <linux/kthread.h> |
55 | #include <linux/freezer.h> | |
2c26976d | 56 | #include <linux/videodev2.h> |
76efd62f | 57 | #include <media/v4l2-device.h> |
35ea11ff | 58 | #include <media/v4l2-ioctl.h> |
49965a80 | 59 | #include <media/msp3400.h> |
76efd62f | 60 | #include <media/tvaudio.h> |
49965a80 | 61 | #include "msp3400-driver.h" |
53b0a1c6 HV |
62 | |
63 | /* ---------------------------------------------------------------------- */ | |
64 | ||
65 | MODULE_DESCRIPTION("device driver for msp34xx TV sound processor"); | |
66 | MODULE_AUTHOR("Gerd Knorr"); | |
67 | MODULE_LICENSE("GPL"); | |
68 | ||
69 | /* module parameters */ | |
70 | static int opmode = OPMODE_AUTO; | |
a5ed425c | 71 | int msp_debug; /* msp_debug output */ |
90ab5ee9 RR |
72 | bool msp_once; /* no continuous stereo monitoring */ |
73 | bool msp_amsound; /* hard-wire AM sound at 6.5 Hz (france), | |
a5ed425c | 74 | the autoscan seems work well only with FM... */ |
d52c7385 HV |
75 | int msp_standard = 1; /* Override auto detect of audio msp_standard, |
76 | if needed. */ | |
90ab5ee9 | 77 | bool msp_dolby; |
53b0a1c6 | 78 | |
f167cb4e | 79 | int msp_stereo_thresh = 0x190; /* a2 threshold for stereo/bilingual |
53b0a1c6 HV |
80 | (msp34xxg only) 0x00a0-0x03c0 */ |
81 | ||
82 | /* read-only */ | |
83 | module_param(opmode, int, 0444); | |
84 | ||
85 | /* read-write */ | |
d52c7385 HV |
86 | module_param_named(once, msp_once, bool, 0644); |
87 | module_param_named(debug, msp_debug, int, 0644); | |
88 | module_param_named(stereo_threshold, msp_stereo_thresh, int, 0644); | |
89 | module_param_named(standard, msp_standard, int, 0644); | |
90 | module_param_named(amsound, msp_amsound, bool, 0644); | |
91 | module_param_named(dolby, msp_dolby, bool, 0644); | |
53b0a1c6 HV |
92 | |
93 | MODULE_PARM_DESC(opmode, "Forces a MSP3400 opmode. 0=Manual, 1=Autodetect, 2=Autodetect and autoselect"); | |
94 | MODULE_PARM_DESC(once, "No continuous stereo monitoring"); | |
95 | MODULE_PARM_DESC(debug, "Enable debug messages [0-3]"); | |
96 | MODULE_PARM_DESC(stereo_threshold, "Sets signal threshold to activate stereo"); | |
97 | MODULE_PARM_DESC(standard, "Specify audio standard: 32 = NTSC, 64 = radio, Default: Autodetect"); | |
98 | MODULE_PARM_DESC(amsound, "Hardwire AM sound at 6.5Hz (France), FM can autoscan"); | |
70f23fd6 | 99 | MODULE_PARM_DESC(dolby, "Activates Dolby processing"); |
53b0a1c6 HV |
100 | |
101 | /* ---------------------------------------------------------------------- */ | |
102 | ||
103 | /* control subaddress */ | |
104 | #define I2C_MSP_CONTROL 0x00 | |
105 | /* demodulator unit subaddress */ | |
106 | #define I2C_MSP_DEM 0x10 | |
107 | /* DSP unit subaddress */ | |
108 | #define I2C_MSP_DSP 0x12 | |
109 | ||
53b0a1c6 | 110 | |
53b0a1c6 HV |
111 | /* ----------------------------------------------------------------------- */ |
112 | /* functions for talking to the MSP3400C Sound processor */ | |
113 | ||
114 | int msp_reset(struct i2c_client *client) | |
115 | { | |
116 | /* reset and read revision code */ | |
117 | static u8 reset_off[3] = { I2C_MSP_CONTROL, 0x80, 0x00 }; | |
118 | static u8 reset_on[3] = { I2C_MSP_CONTROL, 0x00, 0x00 }; | |
119 | static u8 write[3] = { I2C_MSP_DSP + 1, 0x00, 0x1e }; | |
120 | u8 read[2]; | |
121 | struct i2c_msg reset[2] = { | |
122 | { client->addr, I2C_M_IGNORE_NAK, 3, reset_off }, | |
123 | { client->addr, I2C_M_IGNORE_NAK, 3, reset_on }, | |
124 | }; | |
125 | struct i2c_msg test[2] = { | |
126 | { client->addr, 0, 3, write }, | |
127 | { client->addr, I2C_M_RD, 2, read }, | |
128 | }; | |
129 | ||
f167cb4e | 130 | v4l_dbg(3, msp_debug, client, "msp_reset\n"); |
53b0a1c6 HV |
131 | if (i2c_transfer(client->adapter, &reset[0], 1) != 1 || |
132 | i2c_transfer(client->adapter, &reset[1], 1) != 1 || | |
133 | i2c_transfer(client->adapter, test, 2) != 2) { | |
7e8b09ea | 134 | v4l_err(client, "chip reset failed\n"); |
53b0a1c6 HV |
135 | return -1; |
136 | } | |
137 | return 0; | |
138 | } | |
139 | ||
140 | static int msp_read(struct i2c_client *client, int dev, int addr) | |
141 | { | |
142 | int err, retval; | |
143 | u8 write[3]; | |
144 | u8 read[2]; | |
145 | struct i2c_msg msgs[2] = { | |
146 | { client->addr, 0, 3, write }, | |
147 | { client->addr, I2C_M_RD, 2, read } | |
148 | }; | |
149 | ||
150 | write[0] = dev + 1; | |
151 | write[1] = addr >> 8; | |
152 | write[2] = addr & 0xff; | |
153 | ||
154 | for (err = 0; err < 3; err++) { | |
155 | if (i2c_transfer(client->adapter, msgs, 2) == 2) | |
156 | break; | |
7e8b09ea | 157 | v4l_warn(client, "I/O error #%d (read 0x%02x/0x%02x)\n", err, |
53b0a1c6 | 158 | dev, addr); |
f3a43d30 | 159 | schedule_timeout_interruptible(msecs_to_jiffies(10)); |
53b0a1c6 HV |
160 | } |
161 | if (err == 3) { | |
d52c7385 | 162 | v4l_warn(client, "resetting chip, sound will go off.\n"); |
53b0a1c6 HV |
163 | msp_reset(client); |
164 | return -1; | |
165 | } | |
166 | retval = read[0] << 8 | read[1]; | |
d52c7385 HV |
167 | v4l_dbg(3, msp_debug, client, "msp_read(0x%x, 0x%x): 0x%x\n", |
168 | dev, addr, retval); | |
53b0a1c6 HV |
169 | return retval; |
170 | } | |
171 | ||
172 | int msp_read_dem(struct i2c_client *client, int addr) | |
173 | { | |
174 | return msp_read(client, I2C_MSP_DEM, addr); | |
175 | } | |
176 | ||
177 | int msp_read_dsp(struct i2c_client *client, int addr) | |
178 | { | |
179 | return msp_read(client, I2C_MSP_DSP, addr); | |
180 | } | |
181 | ||
182 | static int msp_write(struct i2c_client *client, int dev, int addr, int val) | |
183 | { | |
184 | int err; | |
185 | u8 buffer[5]; | |
186 | ||
187 | buffer[0] = dev; | |
188 | buffer[1] = addr >> 8; | |
189 | buffer[2] = addr & 0xff; | |
190 | buffer[3] = val >> 8; | |
191 | buffer[4] = val & 0xff; | |
192 | ||
d52c7385 HV |
193 | v4l_dbg(3, msp_debug, client, "msp_write(0x%x, 0x%x, 0x%x)\n", |
194 | dev, addr, val); | |
53b0a1c6 HV |
195 | for (err = 0; err < 3; err++) { |
196 | if (i2c_master_send(client, buffer, 5) == 5) | |
197 | break; | |
7e8b09ea | 198 | v4l_warn(client, "I/O error #%d (write 0x%02x/0x%02x)\n", err, |
53b0a1c6 | 199 | dev, addr); |
f3a43d30 | 200 | schedule_timeout_interruptible(msecs_to_jiffies(10)); |
53b0a1c6 HV |
201 | } |
202 | if (err == 3) { | |
d52c7385 | 203 | v4l_warn(client, "resetting chip, sound will go off.\n"); |
53b0a1c6 HV |
204 | msp_reset(client); |
205 | return -1; | |
206 | } | |
207 | return 0; | |
208 | } | |
209 | ||
210 | int msp_write_dem(struct i2c_client *client, int addr, int val) | |
211 | { | |
212 | return msp_write(client, I2C_MSP_DEM, addr, val); | |
213 | } | |
214 | ||
215 | int msp_write_dsp(struct i2c_client *client, int addr, int val) | |
216 | { | |
217 | return msp_write(client, I2C_MSP_DSP, addr, val); | |
218 | } | |
219 | ||
220 | /* ----------------------------------------------------------------------- * | |
221 | * bits 9 8 5 - SCART DSP input Select: | |
222 | * 0 0 0 - SCART 1 to DSP input (reset position) | |
223 | * 0 1 0 - MONO to DSP input | |
224 | * 1 0 0 - SCART 2 to DSP input | |
225 | * 1 1 1 - Mute DSP input | |
226 | * | |
227 | * bits 11 10 6 - SCART 1 Output Select: | |
228 | * 0 0 0 - undefined (reset position) | |
229 | * 0 1 0 - SCART 2 Input to SCART 1 Output (for devices with 2 SCARTS) | |
230 | * 1 0 0 - MONO input to SCART 1 Output | |
231 | * 1 1 0 - SCART 1 DA to SCART 1 Output | |
232 | * 0 0 1 - SCART 2 DA to SCART 1 Output | |
233 | * 0 1 1 - SCART 1 Input to SCART 1 Output | |
234 | * 1 1 1 - Mute SCART 1 Output | |
235 | * | |
236 | * bits 13 12 7 - SCART 2 Output Select (for devices with 2 Output SCART): | |
237 | * 0 0 0 - SCART 1 DA to SCART 2 Output (reset position) | |
238 | * 0 1 0 - SCART 1 Input to SCART 2 Output | |
239 | * 1 0 0 - MONO input to SCART 2 Output | |
240 | * 0 0 1 - SCART 2 DA to SCART 2 Output | |
241 | * 0 1 1 - SCART 2 Input to SCART 2 Output | |
242 | * 1 1 0 - Mute SCART 2 Output | |
243 | * | |
244 | * Bits 4 to 0 should be zero. | |
245 | * ----------------------------------------------------------------------- */ | |
246 | ||
247 | static int scarts[3][9] = { | |
b930e1d8 | 248 | /* MASK IN1 IN2 IN3 IN4 IN1_DA IN2_DA MONO MUTE */ |
53b0a1c6 | 249 | /* SCART DSP Input select */ |
b930e1d8 | 250 | { 0x0320, 0x0000, 0x0200, 0x0300, 0x0020, -1, -1, 0x0100, 0x0320 }, |
53b0a1c6 | 251 | /* SCART1 Output select */ |
b930e1d8 | 252 | { 0x0c40, 0x0440, 0x0400, 0x0000, 0x0840, 0x0c00, 0x0040, 0x0800, 0x0c40 }, |
53b0a1c6 | 253 | /* SCART2 Output select */ |
b930e1d8 | 254 | { 0x3080, 0x1000, 0x1080, 0x2080, 0x3080, 0x0000, 0x0080, 0x2000, 0x3000 }, |
53b0a1c6 HV |
255 | }; |
256 | ||
257 | static char *scart_names[] = { | |
b930e1d8 | 258 | "in1", "in2", "in3", "in4", "in1 da", "in2 da", "mono", "mute" |
53b0a1c6 HV |
259 | }; |
260 | ||
261 | void msp_set_scart(struct i2c_client *client, int in, int out) | |
262 | { | |
76efd62f | 263 | struct msp_state *state = to_state(i2c_get_clientdata(client)); |
53b0a1c6 | 264 | |
42772574 | 265 | state->in_scart = in; |
53b0a1c6 | 266 | |
42772574 HV |
267 | if (in >= 0 && in <= 7 && out >= 0 && out <= 2) { |
268 | if (-1 == scarts[out][in + 1]) | |
53b0a1c6 HV |
269 | return; |
270 | ||
42772574 HV |
271 | state->acb &= ~scarts[out][0]; |
272 | state->acb |= scarts[out][in + 1]; | |
53b0a1c6 HV |
273 | } else |
274 | state->acb = 0xf60; /* Mute Input and SCART 1 Output */ | |
275 | ||
f167cb4e | 276 | v4l_dbg(1, msp_debug, client, "scart switch: %s => %d (ACB=0x%04x)\n", |
d52c7385 | 277 | scart_names[in], out, state->acb); |
53b0a1c6 HV |
278 | msp_write_dsp(client, 0x13, state->acb); |
279 | ||
280 | /* Sets I2S speed 0 = 1.024 Mbps, 1 = 2.048 Mbps */ | |
dc555aa6 HV |
281 | if (state->has_i2s_conf) |
282 | msp_write_dem(client, 0x40, state->i2s_mode); | |
53b0a1c6 HV |
283 | } |
284 | ||
53b0a1c6 HV |
285 | /* ------------------------------------------------------------------------ */ |
286 | ||
53b0a1c6 HV |
287 | static void msp_wake_thread(struct i2c_client *client) |
288 | { | |
76efd62f | 289 | struct msp_state *state = to_state(i2c_get_clientdata(client)); |
53b0a1c6 HV |
290 | |
291 | if (NULL == state->kthread) | |
292 | return; | |
53b0a1c6 HV |
293 | state->watch_stereo = 0; |
294 | state->restart = 1; | |
295 | wake_up_interruptible(&state->wq); | |
296 | } | |
297 | ||
298 | int msp_sleep(struct msp_state *state, int timeout) | |
299 | { | |
300 | DECLARE_WAITQUEUE(wait, current); | |
301 | ||
302 | add_wait_queue(&state->wq, &wait); | |
303 | if (!kthread_should_stop()) { | |
304 | if (timeout < 0) { | |
305 | set_current_state(TASK_INTERRUPTIBLE); | |
306 | schedule(); | |
307 | } else { | |
308 | schedule_timeout_interruptible | |
309 | (msecs_to_jiffies(timeout)); | |
310 | } | |
311 | } | |
312 | ||
313 | remove_wait_queue(&state->wq, &wait); | |
314 | try_to_freeze(); | |
315 | return state->restart; | |
316 | } | |
317 | ||
318 | /* ------------------------------------------------------------------------ */ | |
53b0a1c6 | 319 | |
ebc3bba5 | 320 | static int msp_s_ctrl(struct v4l2_ctrl *ctrl) |
53b0a1c6 | 321 | { |
ebc3bba5 HV |
322 | struct msp_state *state = ctrl_to_state(ctrl); |
323 | struct i2c_client *client = v4l2_get_subdevdata(&state->sd); | |
324 | int val = ctrl->val; | |
53b0a1c6 HV |
325 | |
326 | switch (ctrl->id) { | |
ebc3bba5 HV |
327 | case V4L2_CID_AUDIO_VOLUME: { |
328 | /* audio volume cluster */ | |
329 | int reallymuted = state->muted->val | state->scan_in_progress; | |
330 | ||
331 | if (!reallymuted) | |
332 | val = (val * 0x7f / 65535) << 8; | |
333 | ||
334 | v4l_dbg(1, msp_debug, client, "mute=%s scanning=%s volume=%d\n", | |
335 | state->muted->val ? "on" : "off", | |
336 | state->scan_in_progress ? "yes" : "no", | |
337 | state->volume->val); | |
338 | ||
339 | msp_write_dsp(client, 0x0000, val); | |
340 | msp_write_dsp(client, 0x0007, reallymuted ? 0x1 : (val | 0x1)); | |
341 | if (state->has_scart2_out_volume) | |
342 | msp_write_dsp(client, 0x0040, reallymuted ? 0x1 : (val | 0x1)); | |
343 | if (state->has_headphones) | |
344 | msp_write_dsp(client, 0x0006, val); | |
53b0a1c6 | 345 | break; |
53b0a1c6 | 346 | } |
53b0a1c6 HV |
347 | |
348 | case V4L2_CID_AUDIO_BASS: | |
ebc3bba5 HV |
349 | val = ((val - 32768) * 0x60 / 65535) << 8; |
350 | msp_write_dsp(client, 0x0002, val); | |
351 | if (state->has_headphones) | |
352 | msp_write_dsp(client, 0x0031, val); | |
53b0a1c6 HV |
353 | break; |
354 | ||
355 | case V4L2_CID_AUDIO_TREBLE: | |
ebc3bba5 HV |
356 | val = ((val - 32768) * 0x60 / 65535) << 8; |
357 | msp_write_dsp(client, 0x0003, val); | |
358 | if (state->has_headphones) | |
359 | msp_write_dsp(client, 0x0032, val); | |
53b0a1c6 HV |
360 | break; |
361 | ||
d312a46e | 362 | case V4L2_CID_AUDIO_LOUDNESS: |
ebc3bba5 HV |
363 | val = val ? ((5 * 4) << 8) : 0; |
364 | msp_write_dsp(client, 0x0004, val); | |
365 | if (state->has_headphones) | |
366 | msp_write_dsp(client, 0x0033, val); | |
53b0a1c6 HV |
367 | break; |
368 | ||
d312a46e | 369 | case V4L2_CID_AUDIO_BALANCE: |
ebc3bba5 HV |
370 | val = (u8)((val / 256) - 128); |
371 | msp_write_dsp(client, 0x0001, val << 8); | |
372 | if (state->has_headphones) | |
373 | msp_write_dsp(client, 0x0030, val << 8); | |
53b0a1c6 HV |
374 | break; |
375 | ||
376 | default: | |
377 | return -EINVAL; | |
378 | } | |
53b0a1c6 HV |
379 | return 0; |
380 | } | |
381 | ||
ebc3bba5 HV |
382 | void msp_update_volume(struct msp_state *state) |
383 | { | |
0310871d HV |
384 | /* Force an update of the volume/mute cluster */ |
385 | v4l2_ctrl_lock(state->volume); | |
386 | state->volume->val = state->volume->cur.val; | |
387 | state->muted->val = state->muted->cur.val; | |
388 | msp_s_ctrl(state->volume); | |
389 | v4l2_ctrl_unlock(state->volume); | |
ebc3bba5 HV |
390 | } |
391 | ||
76efd62f HV |
392 | /* --- v4l2 ioctls --- */ |
393 | static int msp_s_radio(struct v4l2_subdev *sd) | |
394 | { | |
395 | struct msp_state *state = to_state(sd); | |
396 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
53b0a1c6 | 397 | |
76efd62f | 398 | if (state->radio) |
53b0a1c6 | 399 | return 0; |
76efd62f HV |
400 | state->radio = 1; |
401 | v4l_dbg(1, msp_debug, client, "switching to radio mode\n"); | |
402 | state->watch_stereo = 0; | |
403 | switch (state->opmode) { | |
404 | case OPMODE_MANUAL: | |
405 | /* set msp3400 to FM radio mode */ | |
406 | msp3400c_set_mode(client, MSP_MODE_FM_RADIO); | |
407 | msp3400c_set_carrier(client, MSP_CARRIER(10.7), | |
408 | MSP_CARRIER(10.7)); | |
ebc3bba5 | 409 | msp_update_volume(state); |
76efd62f HV |
410 | break; |
411 | case OPMODE_AUTODETECT: | |
412 | case OPMODE_AUTOSELECT: | |
413 | /* the thread will do for us */ | |
414 | msp_wake_thread(client); | |
415 | break; | |
53b0a1c6 | 416 | } |
76efd62f HV |
417 | return 0; |
418 | } | |
53b0a1c6 | 419 | |
76efd62f HV |
420 | static int msp_s_frequency(struct v4l2_subdev *sd, struct v4l2_frequency *freq) |
421 | { | |
422 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
53b0a1c6 | 423 | |
76efd62f HV |
424 | /* new channel -- kick audio carrier scan */ |
425 | msp_wake_thread(client); | |
426 | return 0; | |
427 | } | |
2474ed44 | 428 | |
5d1ed986 MCC |
429 | static int msp_querystd(struct v4l2_subdev *sd, v4l2_std_id *id) |
430 | { | |
431 | struct msp_state *state = to_state(sd); | |
432 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
433 | ||
434 | *id &= state->detected_std; | |
435 | ||
436 | v4l_dbg(2, msp_debug, client, | |
437 | "detected standard: %s(0x%08Lx)\n", | |
438 | msp_standard_std_name(state->std), state->detected_std); | |
439 | ||
440 | return 0; | |
441 | } | |
442 | ||
76efd62f HV |
443 | static int msp_s_std(struct v4l2_subdev *sd, v4l2_std_id id) |
444 | { | |
445 | struct msp_state *state = to_state(sd); | |
446 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
447 | int update = state->radio || state->v4l2_std != id; | |
448 | ||
449 | state->v4l2_std = id; | |
450 | state->radio = 0; | |
451 | if (update) | |
2eb606db | 452 | msp_wake_thread(client); |
76efd62f HV |
453 | return 0; |
454 | } | |
455 | ||
5325b427 HV |
456 | static int msp_s_routing(struct v4l2_subdev *sd, |
457 | u32 input, u32 output, u32 config) | |
76efd62f HV |
458 | { |
459 | struct msp_state *state = to_state(sd); | |
460 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
5325b427 HV |
461 | int tuner = (input >> 3) & 1; |
462 | int sc_in = input & 0x7; | |
463 | int sc1_out = output & 0xf; | |
464 | int sc2_out = (output >> 4) & 0xf; | |
76efd62f HV |
465 | u16 val, reg; |
466 | int i; | |
467 | int extern_input = 1; | |
468 | ||
5325b427 | 469 | if (state->route_in == input && state->route_out == output) |
76efd62f | 470 | return 0; |
5325b427 HV |
471 | state->route_in = input; |
472 | state->route_out = output; | |
76efd62f HV |
473 | /* check if the tuner input is used */ |
474 | for (i = 0; i < 5; i++) { | |
5325b427 | 475 | if (((input >> (4 + i * 4)) & 0xf) == 0) |
76efd62f | 476 | extern_input = 0; |
53b0a1c6 | 477 | } |
76efd62f HV |
478 | state->mode = extern_input ? MSP_MODE_EXTERN : MSP_MODE_AM_DETECT; |
479 | state->rxsubchans = V4L2_TUNER_SUB_STEREO; | |
480 | msp_set_scart(client, sc_in, 0); | |
481 | msp_set_scart(client, sc1_out, 1); | |
482 | msp_set_scart(client, sc2_out, 2); | |
483 | msp_set_audmode(client); | |
484 | reg = (state->opmode == OPMODE_AUTOSELECT) ? 0x30 : 0xbb; | |
485 | val = msp_read_dem(client, reg); | |
486 | msp_write_dem(client, reg, (val & ~0x100) | (tuner << 8)); | |
487 | /* wake thread when a new input is chosen */ | |
488 | msp_wake_thread(client); | |
489 | return 0; | |
490 | } | |
53b0a1c6 | 491 | |
76efd62f HV |
492 | static int msp_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt) |
493 | { | |
494 | struct msp_state *state = to_state(sd); | |
495 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
53b0a1c6 | 496 | |
ddc6ff31 | 497 | if (vt->type != V4L2_TUNER_ANALOG_TV) |
76efd62f | 498 | return 0; |
ddc6ff31 HV |
499 | if (!state->radio) { |
500 | if (state->opmode == OPMODE_AUTOSELECT) | |
501 | msp_detect_stereo(client); | |
502 | vt->rxsubchans = state->rxsubchans; | |
503 | } | |
504 | vt->audmode = state->audmode; | |
76efd62f HV |
505 | vt->capability |= V4L2_TUNER_CAP_STEREO | |
506 | V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2; | |
507 | return 0; | |
508 | } | |
53b0a1c6 | 509 | |
76efd62f HV |
510 | static int msp_s_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt) |
511 | { | |
512 | struct msp_state *state = to_state(sd); | |
513 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
53b0a1c6 | 514 | |
76efd62f HV |
515 | if (state->radio) /* TODO: add mono/stereo support for radio */ |
516 | return 0; | |
517 | if (state->audmode == vt->audmode) | |
518 | return 0; | |
519 | state->audmode = vt->audmode; | |
520 | /* only set audmode */ | |
521 | msp_set_audmode(client); | |
522 | return 0; | |
523 | } | |
53b0a1c6 | 524 | |
76efd62f HV |
525 | static int msp_s_i2s_clock_freq(struct v4l2_subdev *sd, u32 freq) |
526 | { | |
527 | struct msp_state *state = to_state(sd); | |
528 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
53b0a1c6 | 529 | |
76efd62f | 530 | v4l_dbg(1, msp_debug, client, "Setting I2S speed to %d\n", freq); |
53b0a1c6 | 531 | |
76efd62f | 532 | switch (freq) { |
d52c7385 HV |
533 | case 1024000: |
534 | state->i2s_mode = 0; | |
535 | break; | |
536 | case 2048000: | |
537 | state->i2s_mode = 1; | |
538 | break; | |
539 | default: | |
540 | return -EINVAL; | |
53b0a1c6 | 541 | } |
76efd62f HV |
542 | return 0; |
543 | } | |
53b0a1c6 | 544 | |
aecde8b5 | 545 | static int msp_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip) |
76efd62f HV |
546 | { |
547 | struct msp_state *state = to_state(sd); | |
548 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
53b0a1c6 | 549 | |
76efd62f HV |
550 | return v4l2_chip_ident_i2c_client(client, chip, state->ident, |
551 | (state->rev1 << 16) | state->rev2); | |
552 | } | |
5af0c8f6 | 553 | |
76efd62f HV |
554 | static int msp_log_status(struct v4l2_subdev *sd) |
555 | { | |
556 | struct msp_state *state = to_state(sd); | |
557 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
558 | const char *p; | |
ebc3bba5 | 559 | char prefix[V4L2_SUBDEV_NAME_SIZE + 20]; |
76efd62f HV |
560 | |
561 | if (state->opmode == OPMODE_AUTOSELECT) | |
562 | msp_detect_stereo(client); | |
563 | v4l_info(client, "%s rev1 = 0x%04x rev2 = 0x%04x\n", | |
564 | client->name, state->rev1, state->rev2); | |
ebc3bba5 HV |
565 | snprintf(prefix, sizeof(prefix), "%s: Audio: ", sd->name); |
566 | v4l2_ctrl_handler_log_status(&state->hdl, prefix); | |
76efd62f | 567 | switch (state->mode) { |
5af0c8f6 HV |
568 | case MSP_MODE_AM_DETECT: p = "AM (for carrier detect)"; break; |
569 | case MSP_MODE_FM_RADIO: p = "FM Radio"; break; | |
25985edc | 570 | case MSP_MODE_FM_TERRA: p = "Terrestrial FM-mono/stereo"; break; |
5af0c8f6 HV |
571 | case MSP_MODE_FM_SAT: p = "Satellite FM-mono"; break; |
572 | case MSP_MODE_FM_NICAM1: p = "NICAM/FM (B/G, D/K)"; break; | |
573 | case MSP_MODE_FM_NICAM2: p = "NICAM/FM (I)"; break; | |
574 | case MSP_MODE_AM_NICAM: p = "NICAM/AM (L)"; break; | |
575 | case MSP_MODE_BTSC: p = "BTSC"; break; | |
576 | case MSP_MODE_EXTERN: p = "External input"; break; | |
577 | default: p = "unknown"; break; | |
76efd62f HV |
578 | } |
579 | if (state->mode == MSP_MODE_EXTERN) { | |
580 | v4l_info(client, "Mode: %s\n", p); | |
581 | } else if (state->opmode == OPMODE_MANUAL) { | |
582 | v4l_info(client, "Mode: %s (%s%s)\n", p, | |
5af0c8f6 HV |
583 | (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono", |
584 | (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : ""); | |
76efd62f HV |
585 | } else { |
586 | if (state->opmode == OPMODE_AUTODETECT) | |
587 | v4l_info(client, "Mode: %s\n", p); | |
588 | v4l_info(client, "Standard: %s (%s%s)\n", | |
5af0c8f6 HV |
589 | msp_standard_std_name(state->std), |
590 | (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono", | |
591 | (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : ""); | |
53b0a1c6 | 592 | } |
76efd62f HV |
593 | v4l_info(client, "Audmode: 0x%04x\n", state->audmode); |
594 | v4l_info(client, "Routing: 0x%08x (input) 0x%08x (output)\n", | |
5325b427 | 595 | state->route_in, state->route_out); |
76efd62f | 596 | v4l_info(client, "ACB: 0x%04x\n", state->acb); |
53b0a1c6 HV |
597 | return 0; |
598 | } | |
599 | ||
5cbd28df MB |
600 | #ifdef CONFIG_PM_SLEEP |
601 | static int msp_suspend(struct device *dev) | |
53b0a1c6 | 602 | { |
5cbd28df | 603 | struct i2c_client *client = to_i2c_client(dev); |
f167cb4e | 604 | v4l_dbg(1, msp_debug, client, "suspend\n"); |
53b0a1c6 HV |
605 | msp_reset(client); |
606 | return 0; | |
607 | } | |
608 | ||
5cbd28df | 609 | static int msp_resume(struct device *dev) |
53b0a1c6 | 610 | { |
5cbd28df | 611 | struct i2c_client *client = to_i2c_client(dev); |
f167cb4e | 612 | v4l_dbg(1, msp_debug, client, "resume\n"); |
53b0a1c6 HV |
613 | msp_wake_thread(client); |
614 | return 0; | |
615 | } | |
5cbd28df | 616 | #endif |
53b0a1c6 | 617 | |
76efd62f HV |
618 | /* ----------------------------------------------------------------------- */ |
619 | ||
ebc3bba5 HV |
620 | static const struct v4l2_ctrl_ops msp_ctrl_ops = { |
621 | .s_ctrl = msp_s_ctrl, | |
622 | }; | |
623 | ||
76efd62f HV |
624 | static const struct v4l2_subdev_core_ops msp_core_ops = { |
625 | .log_status = msp_log_status, | |
626 | .g_chip_ident = msp_g_chip_ident, | |
ebc3bba5 HV |
627 | .g_ext_ctrls = v4l2_subdev_g_ext_ctrls, |
628 | .try_ext_ctrls = v4l2_subdev_try_ext_ctrls, | |
629 | .s_ext_ctrls = v4l2_subdev_s_ext_ctrls, | |
630 | .g_ctrl = v4l2_subdev_g_ctrl, | |
631 | .s_ctrl = v4l2_subdev_s_ctrl, | |
632 | .queryctrl = v4l2_subdev_queryctrl, | |
633 | .querymenu = v4l2_subdev_querymenu, | |
f41737ec | 634 | .s_std = msp_s_std, |
76efd62f HV |
635 | }; |
636 | ||
5d1ed986 MCC |
637 | static const struct v4l2_subdev_video_ops msp_video_ops = { |
638 | .querystd = msp_querystd, | |
639 | }; | |
640 | ||
76efd62f HV |
641 | static const struct v4l2_subdev_tuner_ops msp_tuner_ops = { |
642 | .s_frequency = msp_s_frequency, | |
643 | .g_tuner = msp_g_tuner, | |
644 | .s_tuner = msp_s_tuner, | |
645 | .s_radio = msp_s_radio, | |
76efd62f HV |
646 | }; |
647 | ||
648 | static const struct v4l2_subdev_audio_ops msp_audio_ops = { | |
649 | .s_routing = msp_s_routing, | |
650 | .s_i2s_clock_freq = msp_s_i2s_clock_freq, | |
651 | }; | |
652 | ||
653 | static const struct v4l2_subdev_ops msp_ops = { | |
654 | .core = &msp_core_ops, | |
5d1ed986 | 655 | .video = &msp_video_ops, |
76efd62f HV |
656 | .tuner = &msp_tuner_ops, |
657 | .audio = &msp_audio_ops, | |
658 | }; | |
659 | ||
53b0a1c6 HV |
660 | /* ----------------------------------------------------------------------- */ |
661 | ||
d2653e92 | 662 | static int msp_probe(struct i2c_client *client, const struct i2c_device_id *id) |
53b0a1c6 | 663 | { |
53b0a1c6 | 664 | struct msp_state *state; |
76efd62f | 665 | struct v4l2_subdev *sd; |
ebc3bba5 | 666 | struct v4l2_ctrl_handler *hdl; |
53b0a1c6 | 667 | int (*thread_func)(void *data) = NULL; |
7560d7a4 HV |
668 | int msp_hard; |
669 | int msp_family; | |
670 | int msp_revision; | |
671 | int msp_product, msp_prod_hi, msp_prod_lo; | |
672 | int msp_rom; | |
53b0a1c6 | 673 | |
af294867 JD |
674 | if (!id) |
675 | strlcpy(client->name, "msp3400", sizeof(client->name)); | |
53b0a1c6 HV |
676 | |
677 | if (msp_reset(client) == -1) { | |
f167cb4e | 678 | v4l_dbg(1, msp_debug, client, "msp3400 not found\n"); |
188f3457 | 679 | return -ENODEV; |
53b0a1c6 HV |
680 | } |
681 | ||
b2a65760 | 682 | state = kzalloc(sizeof(*state), GFP_KERNEL); |
d52c7385 | 683 | if (!state) |
53b0a1c6 | 684 | return -ENOMEM; |
b2a65760 | 685 | |
76efd62f HV |
686 | sd = &state->sd; |
687 | v4l2_i2c_subdev_init(sd, client, &msp_ops); | |
53b0a1c6 | 688 | |
5af0c8f6 | 689 | state->v4l2_std = V4L2_STD_NTSC; |
5d1ed986 | 690 | state->detected_std = V4L2_STD_ALL; |
0020d3ef | 691 | state->audmode = V4L2_TUNER_MODE_STEREO; |
53b0a1c6 | 692 | state->input = -1; |
53b0a1c6 HV |
693 | state->i2s_mode = 0; |
694 | init_waitqueue_head(&state->wq); | |
2474ed44 | 695 | /* These are the reset input/output positions */ |
5325b427 HV |
696 | state->route_in = MSP_INPUT_DEFAULT; |
697 | state->route_out = MSP_OUTPUT_DEFAULT; | |
53b0a1c6 HV |
698 | |
699 | state->rev1 = msp_read_dsp(client, 0x1e); | |
700 | if (state->rev1 != -1) | |
701 | state->rev2 = msp_read_dsp(client, 0x1f); | |
d52c7385 HV |
702 | v4l_dbg(1, msp_debug, client, "rev1=0x%04x, rev2=0x%04x\n", |
703 | state->rev1, state->rev2); | |
53b0a1c6 | 704 | if (state->rev1 == -1 || (state->rev1 == 0 && state->rev2 == 0)) { |
d52c7385 HV |
705 | v4l_dbg(1, msp_debug, client, |
706 | "not an msp3400 (cannot read chip version)\n"); | |
53b0a1c6 | 707 | kfree(state); |
188f3457 | 708 | return -ENODEV; |
53b0a1c6 HV |
709 | } |
710 | ||
7560d7a4 HV |
711 | msp_family = ((state->rev1 >> 4) & 0x0f) + 3; |
712 | msp_product = (state->rev2 >> 8) & 0xff; | |
713 | msp_prod_hi = msp_product / 10; | |
714 | msp_prod_lo = msp_product % 10; | |
715 | msp_revision = (state->rev1 & 0x0f) + '@'; | |
716 | msp_hard = ((state->rev1 >> 8) & 0xff) + '@'; | |
717 | msp_rom = state->rev2 & 0x1f; | |
74cab31c | 718 | /* Rev B=2, C=3, D=4, G=7 */ |
d52c7385 HV |
719 | state->ident = msp_family * 10000 + 4000 + msp_product * 10 + |
720 | msp_revision - '@'; | |
7560d7a4 HV |
721 | |
722 | /* Has NICAM support: all mspx41x and mspx45x products have NICAM */ | |
d52c7385 HV |
723 | state->has_nicam = |
724 | msp_prod_hi == 1 || msp_prod_hi == 5; | |
7560d7a4 | 725 | /* Has radio support: was added with revision G */ |
d52c7385 HV |
726 | state->has_radio = |
727 | msp_revision >= 'G'; | |
7560d7a4 | 728 | /* Has headphones output: not for stripped down products */ |
d52c7385 HV |
729 | state->has_headphones = |
730 | msp_prod_lo < 5; | |
0020d3ef | 731 | /* Has scart2 input: not in stripped down products of the '3' family */ |
d52c7385 HV |
732 | state->has_scart2 = |
733 | msp_family >= 4 || msp_prod_lo < 7; | |
0020d3ef | 734 | /* Has scart3 input: not in stripped down products of the '3' family */ |
d52c7385 HV |
735 | state->has_scart3 = |
736 | msp_family >= 4 || msp_prod_lo < 5; | |
7560d7a4 | 737 | /* Has scart4 input: not in pre D revisions, not in stripped D revs */ |
d52c7385 HV |
738 | state->has_scart4 = |
739 | msp_family >= 4 || (msp_revision >= 'D' && msp_prod_lo < 5); | |
740 | /* Has scart2 output: not in stripped down products of | |
741 | * the '3' family */ | |
742 | state->has_scart2_out = | |
743 | msp_family >= 4 || msp_prod_lo < 5; | |
d312a46e | 744 | /* Has scart2 a volume control? Not in pre-D revisions. */ |
d52c7385 HV |
745 | state->has_scart2_out_volume = |
746 | msp_revision > 'C' && state->has_scart2_out; | |
5af0c8f6 | 747 | /* Has a configurable i2s out? */ |
d52c7385 HV |
748 | state->has_i2s_conf = |
749 | msp_revision >= 'G' && msp_prod_lo < 7; | |
750 | /* Has subwoofer output: not in pre-D revs and not in stripped down | |
751 | * products */ | |
752 | state->has_subwoofer = | |
753 | msp_revision >= 'D' && msp_prod_lo < 5; | |
754 | /* Has soundprocessing (bass/treble/balance/loudness/equalizer): | |
755 | * not in stripped down products */ | |
756 | state->has_sound_processing = | |
757 | msp_prod_lo < 7; | |
7560d7a4 | 758 | /* Has Virtual Dolby Surround: only in msp34x1 */ |
d52c7385 HV |
759 | state->has_virtual_dolby_surround = |
760 | msp_revision == 'G' && msp_prod_lo == 1; | |
7560d7a4 | 761 | /* Has Virtual Dolby Surround & Dolby Pro Logic: only in msp34x2 */ |
d52c7385 HV |
762 | state->has_dolby_pro_logic = |
763 | msp_revision == 'G' && msp_prod_lo == 2; | |
764 | /* The msp343xG supports BTSC only and cannot do Automatic Standard | |
765 | * Detection. */ | |
766 | state->force_btsc = | |
767 | msp_family == 3 && msp_revision == 'G' && msp_prod_hi == 3; | |
53b0a1c6 HV |
768 | |
769 | state->opmode = opmode; | |
770 | if (state->opmode == OPMODE_AUTO) { | |
771 | /* MSP revision G and up have both autodetect and autoselect */ | |
7560d7a4 | 772 | if (msp_revision >= 'G') |
53b0a1c6 HV |
773 | state->opmode = OPMODE_AUTOSELECT; |
774 | /* MSP revision D and up have autodetect */ | |
7560d7a4 | 775 | else if (msp_revision >= 'D') |
53b0a1c6 HV |
776 | state->opmode = OPMODE_AUTODETECT; |
777 | else | |
778 | state->opmode = OPMODE_MANUAL; | |
779 | } | |
780 | ||
ebc3bba5 HV |
781 | hdl = &state->hdl; |
782 | v4l2_ctrl_handler_init(hdl, 6); | |
783 | if (state->has_sound_processing) { | |
784 | v4l2_ctrl_new_std(hdl, &msp_ctrl_ops, | |
785 | V4L2_CID_AUDIO_BASS, 0, 65535, 65535 / 100, 32768); | |
786 | v4l2_ctrl_new_std(hdl, &msp_ctrl_ops, | |
787 | V4L2_CID_AUDIO_TREBLE, 0, 65535, 65535 / 100, 32768); | |
788 | v4l2_ctrl_new_std(hdl, &msp_ctrl_ops, | |
789 | V4L2_CID_AUDIO_LOUDNESS, 0, 1, 1, 0); | |
790 | } | |
791 | state->volume = v4l2_ctrl_new_std(hdl, &msp_ctrl_ops, | |
792 | V4L2_CID_AUDIO_VOLUME, 0, 65535, 65535 / 100, 58880); | |
793 | v4l2_ctrl_new_std(hdl, &msp_ctrl_ops, | |
794 | V4L2_CID_AUDIO_BALANCE, 0, 65535, 65535 / 100, 32768); | |
795 | state->muted = v4l2_ctrl_new_std(hdl, &msp_ctrl_ops, | |
796 | V4L2_CID_AUDIO_MUTE, 0, 1, 1, 0); | |
797 | sd->ctrl_handler = hdl; | |
798 | if (hdl->error) { | |
799 | int err = hdl->error; | |
800 | ||
801 | v4l2_ctrl_handler_free(hdl); | |
802 | kfree(state); | |
803 | return err; | |
804 | } | |
805 | ||
806 | v4l2_ctrl_cluster(2, &state->volume); | |
807 | v4l2_ctrl_handler_setup(hdl); | |
808 | ||
53b0a1c6 | 809 | /* hello world :-) */ |
af294867 JD |
810 | v4l_info(client, "MSP%d4%02d%c-%c%d found @ 0x%x (%s)\n", |
811 | msp_family, msp_product, | |
812 | msp_revision, msp_hard, msp_rom, | |
d52c7385 | 813 | client->addr << 1, client->adapter->name); |
7e8b09ea | 814 | v4l_info(client, "%s ", client->name); |
7560d7a4 | 815 | if (state->has_nicam && state->has_radio) |
d52c7385 | 816 | printk(KERN_CONT "supports nicam and radio, "); |
7560d7a4 | 817 | else if (state->has_nicam) |
d52c7385 | 818 | printk(KERN_CONT "supports nicam, "); |
7560d7a4 | 819 | else if (state->has_radio) |
d52c7385 HV |
820 | printk(KERN_CONT "supports radio, "); |
821 | printk(KERN_CONT "mode is "); | |
53b0a1c6 HV |
822 | |
823 | /* version-specific initialization */ | |
824 | switch (state->opmode) { | |
825 | case OPMODE_MANUAL: | |
d52c7385 | 826 | printk(KERN_CONT "manual"); |
53b0a1c6 HV |
827 | thread_func = msp3400c_thread; |
828 | break; | |
829 | case OPMODE_AUTODETECT: | |
d52c7385 | 830 | printk(KERN_CONT "autodetect"); |
53b0a1c6 HV |
831 | thread_func = msp3410d_thread; |
832 | break; | |
833 | case OPMODE_AUTOSELECT: | |
d52c7385 | 834 | printk(KERN_CONT "autodetect and autoselect"); |
53b0a1c6 HV |
835 | thread_func = msp34xxg_thread; |
836 | break; | |
837 | } | |
d52c7385 | 838 | printk(KERN_CONT "\n"); |
53b0a1c6 HV |
839 | |
840 | /* startup control thread if needed */ | |
841 | if (thread_func) { | |
842 | state->kthread = kthread_run(thread_func, client, "msp34xx"); | |
843 | ||
25821400 | 844 | if (IS_ERR(state->kthread)) |
7e8b09ea | 845 | v4l_warn(client, "kernel_thread() failed\n"); |
53b0a1c6 HV |
846 | msp_wake_thread(client); |
847 | } | |
53b0a1c6 HV |
848 | return 0; |
849 | } | |
850 | ||
79518daf | 851 | static int msp_remove(struct i2c_client *client) |
53b0a1c6 | 852 | { |
76efd62f | 853 | struct msp_state *state = to_state(i2c_get_clientdata(client)); |
53b0a1c6 | 854 | |
76efd62f | 855 | v4l2_device_unregister_subdev(&state->sd); |
53b0a1c6 HV |
856 | /* shutdown control thread */ |
857 | if (state->kthread) { | |
858 | state->restart = 1; | |
859 | kthread_stop(state->kthread); | |
860 | } | |
861 | msp_reset(client); | |
862 | ||
ebc3bba5 | 863 | v4l2_ctrl_handler_free(&state->hdl); |
53b0a1c6 | 864 | kfree(state); |
53b0a1c6 HV |
865 | return 0; |
866 | } | |
867 | ||
868 | /* ----------------------------------------------------------------------- */ | |
869 | ||
5cbd28df MB |
870 | static const struct dev_pm_ops msp3400_pm_ops = { |
871 | SET_SYSTEM_SLEEP_PM_OPS(msp_suspend, msp_resume) | |
872 | }; | |
873 | ||
af294867 JD |
874 | static const struct i2c_device_id msp_id[] = { |
875 | { "msp3400", 0 }, | |
876 | { } | |
877 | }; | |
878 | MODULE_DEVICE_TABLE(i2c, msp_id); | |
879 | ||
61a489c8 HV |
880 | static struct i2c_driver msp_driver = { |
881 | .driver = { | |
882 | .owner = THIS_MODULE, | |
883 | .name = "msp3400", | |
5cbd28df | 884 | .pm = &msp3400_pm_ops, |
61a489c8 HV |
885 | }, |
886 | .probe = msp_probe, | |
887 | .remove = msp_remove, | |
61a489c8 | 888 | .id_table = msp_id, |
53b0a1c6 HV |
889 | }; |
890 | ||
c6e8d86f | 891 | module_i2c_driver(msp_driver); |
61a489c8 | 892 | |
53b0a1c6 HV |
893 | /* |
894 | * Overrides for Emacs so that we follow Linus's tabbing style. | |
895 | * --------------------------------------------------------------------------- | |
896 | * Local variables: | |
897 | * c-basic-offset: 8 | |
898 | * End: | |
899 | */ |