TPM: get_event_name stack corruption
[linux-2.6/mini2440.git] / sound / isa / msnd / msnd_pinnacle_mixer.c
blob494058a1a50282f111d18bd80cf85a33f8b3e814
1 /***************************************************************************
2 msnd_pinnacle_mixer.c - description
3 -------------------
4 begin : Fre Jun 7 2002
5 copyright : (C) 2002 by karsten wiese
6 email : annabellesgarden@yahoo.de
7 ***************************************************************************/
9 /***************************************************************************
10 * *
11 * This program is free software; you can redistribute it and/or modify *
12 * it under the terms of the GNU General Public License as published by *
13 * the Free Software Foundation; either version 2 of the License, or *
14 * (at your option) any later version. *
15 * *
16 ***************************************************************************/
18 #include <linux/io.h>
20 #include <sound/core.h>
21 #include <sound/control.h>
22 #include "msnd.h"
23 #include "msnd_pinnacle.h"
26 #define MSND_MIXER_VOLUME 0
27 #define MSND_MIXER_PCM 1
28 #define MSND_MIXER_AUX 2 /* Input source 1 (aux1) */
29 #define MSND_MIXER_IMIX 3 /* Recording monitor */
30 #define MSND_MIXER_SYNTH 4
31 #define MSND_MIXER_SPEAKER 5
32 #define MSND_MIXER_LINE 6
33 #define MSND_MIXER_MIC 7
34 #define MSND_MIXER_RECLEV 11 /* Recording level */
35 #define MSND_MIXER_IGAIN 12 /* Input gain */
36 #define MSND_MIXER_OGAIN 13 /* Output gain */
37 #define MSND_MIXER_DIGITAL 17 /* Digital (input) 1 */
39 /* Device mask bits */
41 #define MSND_MASK_VOLUME (1 << MSND_MIXER_VOLUME)
42 #define MSND_MASK_SYNTH (1 << MSND_MIXER_SYNTH)
43 #define MSND_MASK_PCM (1 << MSND_MIXER_PCM)
44 #define MSND_MASK_SPEAKER (1 << MSND_MIXER_SPEAKER)
45 #define MSND_MASK_LINE (1 << MSND_MIXER_LINE)
46 #define MSND_MASK_MIC (1 << MSND_MIXER_MIC)
47 #define MSND_MASK_IMIX (1 << MSND_MIXER_IMIX)
48 #define MSND_MASK_RECLEV (1 << MSND_MIXER_RECLEV)
49 #define MSND_MASK_IGAIN (1 << MSND_MIXER_IGAIN)
50 #define MSND_MASK_OGAIN (1 << MSND_MIXER_OGAIN)
51 #define MSND_MASK_AUX (1 << MSND_MIXER_AUX)
52 #define MSND_MASK_DIGITAL (1 << MSND_MIXER_DIGITAL)
54 static int snd_msndmix_info_mux(struct snd_kcontrol *kcontrol,
55 struct snd_ctl_elem_info *uinfo)
57 static char *texts[3] = {
58 "Analog", "MASS", "SPDIF",
60 struct snd_msnd *chip = snd_kcontrol_chip(kcontrol);
61 unsigned items = test_bit(F_HAVEDIGITAL, &chip->flags) ? 3 : 2;
63 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
64 uinfo->count = 1;
65 uinfo->value.enumerated.items = items;
66 if (uinfo->value.enumerated.item >= items)
67 uinfo->value.enumerated.item = items - 1;
68 strcpy(uinfo->value.enumerated.name,
69 texts[uinfo->value.enumerated.item]);
70 return 0;
73 static int snd_msndmix_get_mux(struct snd_kcontrol *kcontrol,
74 struct snd_ctl_elem_value *ucontrol)
76 struct snd_msnd *chip = snd_kcontrol_chip(kcontrol);
77 /* MSND_MASK_IMIX is the default */
78 ucontrol->value.enumerated.item[0] = 0;
80 if (chip->recsrc & MSND_MASK_SYNTH) {
81 ucontrol->value.enumerated.item[0] = 1;
82 } else if ((chip->recsrc & MSND_MASK_DIGITAL) &&
83 test_bit(F_HAVEDIGITAL, &chip->flags)) {
84 ucontrol->value.enumerated.item[0] = 2;
88 return 0;
91 static int snd_msndmix_set_mux(struct snd_msnd *chip, int val)
93 unsigned newrecsrc;
94 int change;
95 unsigned char msndbyte;
97 switch (val) {
98 case 0:
99 newrecsrc = MSND_MASK_IMIX;
100 msndbyte = HDEXAR_SET_ANA_IN;
101 break;
102 case 1:
103 newrecsrc = MSND_MASK_SYNTH;
104 msndbyte = HDEXAR_SET_SYNTH_IN;
105 break;
106 case 2:
107 newrecsrc = MSND_MASK_DIGITAL;
108 msndbyte = HDEXAR_SET_DAT_IN;
109 break;
110 default:
111 return -EINVAL;
113 change = newrecsrc != chip->recsrc;
114 if (change) {
115 change = 0;
116 if (!snd_msnd_send_word(chip, 0, 0, msndbyte))
117 if (!snd_msnd_send_dsp_cmd(chip, HDEX_AUX_REQ)) {
118 chip->recsrc = newrecsrc;
119 change = 1;
122 return change;
125 static int snd_msndmix_put_mux(struct snd_kcontrol *kcontrol,
126 struct snd_ctl_elem_value *ucontrol)
128 struct snd_msnd *msnd = snd_kcontrol_chip(kcontrol);
129 return snd_msndmix_set_mux(msnd, ucontrol->value.enumerated.item[0]);
133 static int snd_msndmix_volume_info(struct snd_kcontrol *kcontrol,
134 struct snd_ctl_elem_info *uinfo)
136 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
137 uinfo->count = 2;
138 uinfo->value.integer.min = 0;
139 uinfo->value.integer.max = 100;
140 return 0;
143 static int snd_msndmix_volume_get(struct snd_kcontrol *kcontrol,
144 struct snd_ctl_elem_value *ucontrol)
146 struct snd_msnd *msnd = snd_kcontrol_chip(kcontrol);
147 int addr = kcontrol->private_value;
148 unsigned long flags;
150 spin_lock_irqsave(&msnd->mixer_lock, flags);
151 ucontrol->value.integer.value[0] = msnd->left_levels[addr] * 100;
152 ucontrol->value.integer.value[0] /= 0xFFFF;
153 ucontrol->value.integer.value[1] = msnd->right_levels[addr] * 100;
154 ucontrol->value.integer.value[1] /= 0xFFFF;
155 spin_unlock_irqrestore(&msnd->mixer_lock, flags);
156 return 0;
159 #define update_volm(a, b) \
160 do { \
161 writew((dev->left_levels[a] >> 1) * \
162 readw(dev->SMA + SMA_wCurrMastVolLeft) / 0xffff, \
163 dev->SMA + SMA_##b##Left); \
164 writew((dev->right_levels[a] >> 1) * \
165 readw(dev->SMA + SMA_wCurrMastVolRight) / 0xffff, \
166 dev->SMA + SMA_##b##Right); \
167 } while (0);
169 #define update_potm(d, s, ar) \
170 do { \
171 writeb((dev->left_levels[d] >> 8) * \
172 readw(dev->SMA + SMA_wCurrMastVolLeft) / 0xffff, \
173 dev->SMA + SMA_##s##Left); \
174 writeb((dev->right_levels[d] >> 8) * \
175 readw(dev->SMA + SMA_wCurrMastVolRight) / 0xffff, \
176 dev->SMA + SMA_##s##Right); \
177 if (snd_msnd_send_word(dev, 0, 0, ar) == 0) \
178 snd_msnd_send_dsp_cmd(dev, HDEX_AUX_REQ); \
179 } while (0);
181 #define update_pot(d, s, ar) \
182 do { \
183 writeb(dev->left_levels[d] >> 8, \
184 dev->SMA + SMA_##s##Left); \
185 writeb(dev->right_levels[d] >> 8, \
186 dev->SMA + SMA_##s##Right); \
187 if (snd_msnd_send_word(dev, 0, 0, ar) == 0) \
188 snd_msnd_send_dsp_cmd(dev, HDEX_AUX_REQ); \
189 } while (0);
192 static int snd_msndmix_set(struct snd_msnd *dev, int d, int left, int right)
194 int bLeft, bRight;
195 int wLeft, wRight;
196 int updatemaster = 0;
198 if (d >= LEVEL_ENTRIES)
199 return -EINVAL;
201 bLeft = left * 0xff / 100;
202 wLeft = left * 0xffff / 100;
204 bRight = right * 0xff / 100;
205 wRight = right * 0xffff / 100;
207 dev->left_levels[d] = wLeft;
208 dev->right_levels[d] = wRight;
210 switch (d) {
211 /* master volume unscaled controls */
212 case MSND_MIXER_LINE: /* line pot control */
213 /* scaled by IMIX in digital mix */
214 writeb(bLeft, dev->SMA + SMA_bInPotPosLeft);
215 writeb(bRight, dev->SMA + SMA_bInPotPosRight);
216 if (snd_msnd_send_word(dev, 0, 0, HDEXAR_IN_SET_POTS) == 0)
217 snd_msnd_send_dsp_cmd(dev, HDEX_AUX_REQ);
218 break;
219 case MSND_MIXER_MIC: /* mic pot control */
220 if (dev->type == msndClassic)
221 return -EINVAL;
222 /* scaled by IMIX in digital mix */
223 writeb(bLeft, dev->SMA + SMA_bMicPotPosLeft);
224 writeb(bRight, dev->SMA + SMA_bMicPotPosRight);
225 if (snd_msnd_send_word(dev, 0, 0, HDEXAR_MIC_SET_POTS) == 0)
226 snd_msnd_send_dsp_cmd(dev, HDEX_AUX_REQ);
227 break;
228 case MSND_MIXER_VOLUME: /* master volume */
229 writew(wLeft, dev->SMA + SMA_wCurrMastVolLeft);
230 writew(wRight, dev->SMA + SMA_wCurrMastVolRight);
231 /* fall through */
233 case MSND_MIXER_AUX: /* aux pot control */
234 /* scaled by master volume */
235 /* fall through */
237 /* digital controls */
238 case MSND_MIXER_SYNTH: /* synth vol (dsp mix) */
239 case MSND_MIXER_PCM: /* pcm vol (dsp mix) */
240 case MSND_MIXER_IMIX: /* input monitor (dsp mix) */
241 /* scaled by master volume */
242 updatemaster = 1;
243 break;
245 default:
246 return -EINVAL;
249 if (updatemaster) {
250 /* update master volume scaled controls */
251 update_volm(MSND_MIXER_PCM, wCurrPlayVol);
252 update_volm(MSND_MIXER_IMIX, wCurrInVol);
253 if (dev->type == msndPinnacle)
254 update_volm(MSND_MIXER_SYNTH, wCurrMHdrVol);
255 update_potm(MSND_MIXER_AUX, bAuxPotPos, HDEXAR_AUX_SET_POTS);
258 return 0;
261 static int snd_msndmix_volume_put(struct snd_kcontrol *kcontrol,
262 struct snd_ctl_elem_value *ucontrol)
264 struct snd_msnd *msnd = snd_kcontrol_chip(kcontrol);
265 int change, addr = kcontrol->private_value;
266 int left, right;
267 unsigned long flags;
269 left = ucontrol->value.integer.value[0] % 101;
270 right = ucontrol->value.integer.value[1] % 101;
271 spin_lock_irqsave(&msnd->mixer_lock, flags);
272 change = msnd->left_levels[addr] != left
273 || msnd->right_levels[addr] != right;
274 snd_msndmix_set(msnd, addr, left, right);
275 spin_unlock_irqrestore(&msnd->mixer_lock, flags);
276 return change;
280 #define DUMMY_VOLUME(xname, xindex, addr) \
281 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
282 .info = snd_msndmix_volume_info, \
283 .get = snd_msndmix_volume_get, .put = snd_msndmix_volume_put, \
284 .private_value = addr }
287 static struct snd_kcontrol_new snd_msnd_controls[] = {
288 DUMMY_VOLUME("Master Volume", 0, MSND_MIXER_VOLUME),
289 DUMMY_VOLUME("PCM Volume", 0, MSND_MIXER_PCM),
290 DUMMY_VOLUME("Aux Volume", 0, MSND_MIXER_AUX),
291 DUMMY_VOLUME("Line Volume", 0, MSND_MIXER_LINE),
292 DUMMY_VOLUME("Mic Volume", 0, MSND_MIXER_MIC),
293 DUMMY_VOLUME("Monitor", 0, MSND_MIXER_IMIX),
295 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
296 .name = "Capture Source",
297 .info = snd_msndmix_info_mux,
298 .get = snd_msndmix_get_mux,
299 .put = snd_msndmix_put_mux,
304 int __devinit snd_msndmix_new(struct snd_card *card)
306 struct snd_msnd *chip = card->private_data;
307 unsigned int idx;
308 int err;
310 if (snd_BUG_ON(!chip))
311 return -EINVAL;
312 spin_lock_init(&chip->mixer_lock);
313 strcpy(card->mixername, "MSND Pinnacle Mixer");
315 for (idx = 0; idx < ARRAY_SIZE(snd_msnd_controls); idx++)
316 err = snd_ctl_add(card,
317 snd_ctl_new1(snd_msnd_controls + idx, chip));
318 if (err < 0)
319 return err;
321 return 0;
323 EXPORT_SYMBOL(snd_msndmix_new);
325 void snd_msndmix_setup(struct snd_msnd *dev)
327 update_pot(MSND_MIXER_LINE, bInPotPos, HDEXAR_IN_SET_POTS);
328 update_potm(MSND_MIXER_AUX, bAuxPotPos, HDEXAR_AUX_SET_POTS);
329 update_volm(MSND_MIXER_PCM, wCurrPlayVol);
330 update_volm(MSND_MIXER_IMIX, wCurrInVol);
331 if (dev->type == msndPinnacle) {
332 update_pot(MSND_MIXER_MIC, bMicPotPos, HDEXAR_MIC_SET_POTS);
333 update_volm(MSND_MIXER_SYNTH, wCurrMHdrVol);
336 EXPORT_SYMBOL(snd_msndmix_setup);
338 int snd_msndmix_force_recsrc(struct snd_msnd *dev, int recsrc)
340 dev->recsrc = -1;
341 return snd_msndmix_set_mux(dev, recsrc);
343 EXPORT_SYMBOL(snd_msndmix_force_recsrc);