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avr32: clean and refresh patch
[openwrt.git] / target / linux / pxa / patches-2.6.21 / 027-ucb1400-ac97-audio.patch
1 Index: linux-2.6.21.7/sound/pci/ac97/ac97_codec.c
2 ===================================================================
3 --- linux-2.6.21.7.orig/sound/pci/ac97/ac97_codec.c
4 +++ linux-2.6.21.7/sound/pci/ac97/ac97_codec.c
5 @@ -158,7 +158,7 @@ static const struct ac97_codec_id snd_ac
6 { 0x4e534300, 0xffffffff, "LM4540,43,45,46,48", NULL, NULL }, // only guess --jk
7 { 0x4e534331, 0xffffffff, "LM4549", NULL, NULL },
8 { 0x4e534350, 0xffffffff, "LM4550", patch_lm4550, NULL }, // volume wrap fix
9 -{ 0x50534304, 0xffffffff, "UCB1400", patch_ucb1400, NULL },
10 +{ 0x50534304, 0xffffffff, "UCB1400", patch_ucb1400, NULL, AC97_HAS_NO_STD_PCM },
11 { 0x53494c20, 0xffffffe0, "Si3036,8", mpatch_si3036, mpatch_si3036, AC97_MODEM_PATCH },
12 { 0x54524102, 0xffffffff, "TR28022", NULL, NULL },
13 { 0x54524106, 0xffffffff, "TR28026", NULL, NULL },
14 Index: linux-2.6.21.7/sound/pci/ac97/ac97_patch.c
15 ===================================================================
16 --- linux-2.6.21.7.orig/sound/pci/ac97/ac97_patch.c
17 +++ linux-2.6.21.7/sound/pci/ac97/ac97_patch.c
18 @@ -29,6 +29,10 @@
19 #include <linux/slab.h>
20 #include <linux/mutex.h>
21
22 +#include <linux/proc_fs.h>
23 +#include <linux/string.h>
24 +#include <linux/ctype.h>
25 +
26 #include <sound/core.h>
27 #include <sound/pcm.h>
28 #include <sound/control.h>
29 @@ -406,6 +410,227 @@ int patch_yamaha_ymf753(struct snd_ac97
30 }
31
32 /*
33 + * UCB1400 codec
34 + */
35 +
36 +#define AC97_UCB1400_FCSR1 0x6a
37 +#define AC97_UCB1400_FCSR2 0x6c
38 +
39 +static const struct snd_kcontrol_new ucb1400_snd_ac97_controls[] = {
40 + AC97_SINGLE("Tone Control - Bass", AC97_UCB1400_FCSR1, 11, 4, 0),
41 + AC97_SINGLE("Tone Control - Treble", AC97_UCB1400_FCSR1, 9, 2, 0),
42 + AC97_SINGLE("Headphone Playback Switch", AC97_UCB1400_FCSR1, 6, 1, 0),
43 + AC97_SINGLE("De-emphasis", AC97_UCB1400_FCSR1, 5, 1, 0),
44 + AC97_SINGLE("DC Filter", AC97_UCB1400_FCSR1, 4, 1, 0),
45 + AC97_SINGLE("Hi-pass Filter", AC97_UCB1400_FCSR1, 3, 1, 0),
46 + AC97_SINGLE("ADC Filter", AC97_UCB1400_FCSR2, 12, 1, 0),
47 +};
48 +
49 +#define NUM_GPIO_LINES 10
50 +
51 +static struct proc_dir_entry *proc_gpio_parent;
52 +static struct proc_dir_entry *proc_gpios[NUM_GPIO_LINES];
53 +
54 +typedef struct
55 +{
56 + int gpio;
57 + char name[32];
58 + struct snd_ac97 *ac97;
59 +} gpio_summary_type;
60 +
61 +static gpio_summary_type gpio_summaries[NUM_GPIO_LINES] =
62 +{
63 + { 0, "UCB1400-0-0" },
64 + { 1, "UCB1400-0-1" },
65 + { 2, "UCB1400-0-2" },
66 + { 3, "UCB1400-0-3" },
67 + { 4, "UCB1400-0-4" },
68 + { 5, "UCB1400-0-5" },
69 + { 6, "UCB1400-0-6" },
70 + { 7, "UCB1400-0-7" },
71 + { 8, "UCB1400-0-8" },
72 + { 9, "UCB1400-0-9" }
73 +};
74 +
75 +
76 +static int proc_ucb1400_ac97_gpio_write(struct file *file, const char __user *buf,
77 + unsigned long count, void *data)
78 +{
79 + char *cur, lbuf[count + 1];
80 + gpio_summary_type *summary = data;
81 + u32 direction_is_out, operation_is_set;
82 + int i = summary->gpio;
83 + u16 dir, value;
84 +
85 + if (!capable(CAP_SYS_ADMIN))
86 + return -EACCES;
87 +
88 + memset(lbuf, 0, count + 1);
89 +
90 + if (copy_from_user(lbuf, buf, count))
91 + return -EFAULT;
92 +
93 + cur = lbuf;
94 +
95 + // Get current values
96 + direction_is_out = !!(snd_ac97_read(summary->ac97, 0x5c) & (0x0001 << i));
97 + operation_is_set = !!(snd_ac97_read(summary->ac97, 0x5a) & (0x0001 << i));
98 + while(1)
99 + {
100 + // We accept options: {GPIO|AF1|AF2|AF3}, {set|clear}, {in|out}
101 + // Anything else is an error
102 + while(cur[0] && (isspace(cur[0]) || ispunct(cur[0]))) cur = &(cur[1]);
103 +
104 + if('\0' == cur[0]) break;
105 +
106 + // Ok, so now we're pointing at the start of something
107 + switch(cur[0])
108 + {
109 + case 'G':
110 + // Check that next is "PIO" -- '\0' will cause safe short-circuit if end of buf
111 + if(!(cur[1] == 'P' && cur[2] == 'I' && cur[3] == 'O')) goto parse_error;
112 + cur = &(cur[4]);
113 + break;
114 + case 's':
115 + if(!(cur[1] == 'e' && cur[2] == 't')) goto parse_error;
116 + operation_is_set = 1;
117 + cur = &(cur[3]);
118 + break;
119 + case 'c':
120 + if(!(cur[1] == 'l' && cur[2] == 'e' && cur[3] == 'a' && cur[4] == 'r')) goto
121 +parse_error;
122 + operation_is_set = 0;
123 + cur = &(cur[5]);
124 + break;
125 + case 'i':
126 + if(!(cur[1] == 'n')) goto parse_error;
127 + direction_is_out = 0;
128 + cur = &(cur[2]);
129 + break;
130 + case 'o':
131 + if(!(cur[1] == 'u' && cur[2] == 't')) goto parse_error;
132 + direction_is_out = 1;
133 + cur = &(cur[3]);
134 + break;
135 + default: goto parse_error;
136 + }
137 + }
138 +
139 + // set/get value
140 + dir = snd_ac97_read(summary->ac97, 0x5c);
141 + value = snd_ac97_read(summary->ac97, 0x5a);
142 + if (direction_is_out)
143 + {
144 + dir |= 0x0001 << i;
145 + if (operation_is_set)
146 + {
147 + value |= 0x0001 << i;
148 + }
149 + else
150 + {
151 + value &= ~(0x0001 << i);
152 + }
153 +
154 + snd_ac97_write(summary->ac97, 0x5c, dir);
155 + snd_ac97_write(summary->ac97, 0x5a, value);
156 + }
157 + else // direction in
158 + {
159 + dir &= ~(0x0001 << i);
160 + snd_ac97_write(summary->ac97, 0x5c, dir);
161 + operation_is_set = snd_ac97_read(summary->ac97, 0x5a) & ~(0x0001 << i);
162 + }
163 +
164 +#ifdef CONFIG_PROC_GPIO_DEBUG
165 + printk(KERN_INFO "Set (%s,%s,%s) via /proc/gpio/%s\n",
166 + "GPIO",
167 + direction_is_out ? "out" : "in",
168 + operation_is_set ? "set" : "clear",
169 + summary->name);
170 +#endif
171 +
172 + return count;
173 +
174 +parse_error:
175 + printk(KERN_CRIT "Parse error: Expect \"GPIO|[set|clear]|[in|out] ...\"\n");
176 + return -EINVAL;
177 +}
178 +
179 +static int proc_ucb1400_ac97_gpio_read(char *page, char **start, off_t off,
180 + int count, int *eof, void *data)
181 +{
182 + char *p = page;
183 + gpio_summary_type *summary = data;
184 + int len, i; /*, af;*/
185 + i = summary->gpio;
186 +
187 + p += sprintf(p, "%d\t%s\t%s\t%s\n", i,
188 + "GPIO",
189 + (snd_ac97_read(summary->ac97, 0x5c) & (0x0001 << i)) ? "out" : "in",
190 + (snd_ac97_read(summary->ac97, 0x5a) & (0x0001 << i)) ? "set" : "clear");
191 +
192 + len = (p - page) - off;
193 +
194 + if(len < 0)
195 + {
196 + len = 0;
197 + }
198 +
199 + *eof = (len <= count) ? 1 : 0;
200 + *start = page + off;
201 +
202 + return len;
203 +}
204 +
205 +int patch_ucb1400(struct snd_ac97 * ac97)
206 +{
207 + int err, i;
208 +
209 + proc_gpio_parent = proc_mkdir("gpio", NULL);
210 + if(!proc_gpio_parent) return 0;
211 +
212 + for(i=0; i < NUM_GPIO_LINES; i++)
213 + {
214 + proc_gpios[i] = create_proc_entry(gpio_summaries[i].name, 0644, proc_gpio_parent);
215 + if(proc_gpios[i])
216 + {
217 + gpio_summaries[i].ac97 = ac97;
218 + proc_gpios[i]->data = &gpio_summaries[i];
219 + proc_gpios[i]->read_proc = proc_ucb1400_ac97_gpio_read;
220 + proc_gpios[i]->write_proc = proc_ucb1400_ac97_gpio_write;
221 + }
222 + }
223 +
224 + for(i = 0; i < ARRAY_SIZE(ucb1400_snd_ac97_controls); i++) {
225 + if((err = snd_ctl_add(ac97->bus->card, snd_ac97_cnew(&ucb1400_snd_ac97_controls[i], ac97))) < 0)
226 + return err;
227 + }
228 +
229 + snd_ac97_write_cache(ac97, AC97_UCB1400_FCSR1,
230 + (0 << 11) | // 0 base boost
231 + (0 << 9) | // 0 treble boost
232 + (0 << 7) | // Mode = flat
233 + (1 << 6) | // Headphones enable
234 + (0 << 5) | // De-emphasis disabled
235 + (1 << 4) | // DC filter enabled
236 + (1 << 3) | // Hi-pass filter enabled
237 + (0 << 2) | // disable interrupt signalling via GPIO_INT
238 + (1 << 0) // clear ADC overflow status if set
239 + );
240 +
241 + snd_ac97_write_cache(ac97, AC97_UCB1400_FCSR2,
242 + (0 << 15) | // must be 0
243 + (0 << 13) | // must be 0
244 + (1 << 12) | // ADC filter enabled
245 + (0 << 10) | // must be 0
246 + (0 << 4) | // Smart low power mode on neither Codec nor PLL
247 + (0 << 0) // must be 0
248 + );
249 +
250 + return 0;
251 +}
252 +
253 +/*
254 * May 2, 2003 Liam Girdwood <liam.girdwood@wolfsonmicro.com>
255 * removed broken wolfson00 patch.
256 * added support for WM9705,WM9708,WM9709,WM9710,WM9711,WM9712 and WM9717.
257 @@ -3408,41 +3633,3 @@ int patch_lm4550(struct snd_ac97 *ac97)
258 ac97->res_table = lm4550_restbl;
259 return 0;
260 }
261 -
262 -/*
263 - * UCB1400 codec (http://www.semiconductors.philips.com/acrobat_download/datasheets/UCB1400-02.pdf)
264 - */
265 -static const struct snd_kcontrol_new snd_ac97_controls_ucb1400[] = {
266 -/* enable/disable headphone driver which allows direct connection to
267 - stereo headphone without the use of external DC blocking
268 - capacitors */
269 -AC97_SINGLE("Headphone Driver", 0x6a, 6, 1, 0),
270 -/* Filter used to compensate the DC offset is added in the ADC to remove idle
271 - tones from the audio band. */
272 -AC97_SINGLE("DC Filter", 0x6a, 4, 1, 0),
273 -/* Control smart-low-power mode feature. Allows automatic power down
274 - of unused blocks in the ADC analog front end and the PLL. */
275 -AC97_SINGLE("Smart Low Power Mode", 0x6c, 4, 3, 0),
276 -};
277 -
278 -static int patch_ucb1400_specific(struct snd_ac97 * ac97)
279 -{
280 - int idx, err;
281 - for (idx = 0; idx < ARRAY_SIZE(snd_ac97_controls_ucb1400); idx++)
282 - if ((err = snd_ctl_add(ac97->bus->card, snd_ctl_new1(&snd_ac97_controls_ucb1400[idx], ac97))) < 0)
283 - return err;
284 - return 0;
285 -}
286 -
287 -static struct snd_ac97_build_ops patch_ucb1400_ops = {
288 - .build_specific = patch_ucb1400_specific,
289 -};
290 -
291 -int patch_ucb1400(struct snd_ac97 * ac97)
292 -{
293 - ac97->build_ops = &patch_ucb1400_ops;
294 - /* enable headphone driver and smart low power mode by default */
295 - snd_ac97_write(ac97, 0x6a, 0x0050);
296 - snd_ac97_write(ac97, 0x6c, 0x0030);
297 - return 0;
298 -}
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