mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-12-11 09:27:32 +02:00
316a885776
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@11209 3c298f89-4303-0410-b956-a3cf2f4a3e73
299 lines
9.8 KiB
Diff
299 lines
9.8 KiB
Diff
Index: linux-2.6.21.7/sound/pci/ac97/ac97_codec.c
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===================================================================
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--- linux-2.6.21.7.orig/sound/pci/ac97/ac97_codec.c
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+++ linux-2.6.21.7/sound/pci/ac97/ac97_codec.c
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@@ -158,7 +158,7 @@ static const struct ac97_codec_id snd_ac
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{ 0x4e534300, 0xffffffff, "LM4540,43,45,46,48", NULL, NULL }, // only guess --jk
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{ 0x4e534331, 0xffffffff, "LM4549", NULL, NULL },
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{ 0x4e534350, 0xffffffff, "LM4550", patch_lm4550, NULL }, // volume wrap fix
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-{ 0x50534304, 0xffffffff, "UCB1400", patch_ucb1400, NULL },
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+{ 0x50534304, 0xffffffff, "UCB1400", patch_ucb1400, NULL, AC97_HAS_NO_STD_PCM },
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{ 0x53494c20, 0xffffffe0, "Si3036,8", mpatch_si3036, mpatch_si3036, AC97_MODEM_PATCH },
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{ 0x54524102, 0xffffffff, "TR28022", NULL, NULL },
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{ 0x54524106, 0xffffffff, "TR28026", NULL, NULL },
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Index: linux-2.6.21.7/sound/pci/ac97/ac97_patch.c
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===================================================================
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--- linux-2.6.21.7.orig/sound/pci/ac97/ac97_patch.c
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+++ linux-2.6.21.7/sound/pci/ac97/ac97_patch.c
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@@ -29,6 +29,10 @@
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#include <linux/slab.h>
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#include <linux/mutex.h>
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+#include <linux/proc_fs.h>
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+#include <linux/string.h>
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+#include <linux/ctype.h>
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+
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#include <sound/core.h>
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#include <sound/pcm.h>
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#include <sound/control.h>
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@@ -406,6 +410,227 @@ int patch_yamaha_ymf753(struct snd_ac97
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}
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/*
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+ * UCB1400 codec
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+ */
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+
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+#define AC97_UCB1400_FCSR1 0x6a
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+#define AC97_UCB1400_FCSR2 0x6c
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+
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+static const struct snd_kcontrol_new ucb1400_snd_ac97_controls[] = {
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+ AC97_SINGLE("Tone Control - Bass", AC97_UCB1400_FCSR1, 11, 4, 0),
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+ AC97_SINGLE("Tone Control - Treble", AC97_UCB1400_FCSR1, 9, 2, 0),
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+ AC97_SINGLE("Headphone Playback Switch", AC97_UCB1400_FCSR1, 6, 1, 0),
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+ AC97_SINGLE("De-emphasis", AC97_UCB1400_FCSR1, 5, 1, 0),
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+ AC97_SINGLE("DC Filter", AC97_UCB1400_FCSR1, 4, 1, 0),
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+ AC97_SINGLE("Hi-pass Filter", AC97_UCB1400_FCSR1, 3, 1, 0),
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+ AC97_SINGLE("ADC Filter", AC97_UCB1400_FCSR2, 12, 1, 0),
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+};
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+
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+#define NUM_GPIO_LINES 10
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+
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+static struct proc_dir_entry *proc_gpio_parent;
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+static struct proc_dir_entry *proc_gpios[NUM_GPIO_LINES];
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+
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+typedef struct
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+{
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+ int gpio;
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+ char name[32];
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+ struct snd_ac97 *ac97;
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+} gpio_summary_type;
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+
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+static gpio_summary_type gpio_summaries[NUM_GPIO_LINES] =
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+{
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+ { 0, "UCB1400-0-0" },
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+ { 1, "UCB1400-0-1" },
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+ { 2, "UCB1400-0-2" },
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+ { 3, "UCB1400-0-3" },
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+ { 4, "UCB1400-0-4" },
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+ { 5, "UCB1400-0-5" },
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+ { 6, "UCB1400-0-6" },
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+ { 7, "UCB1400-0-7" },
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+ { 8, "UCB1400-0-8" },
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+ { 9, "UCB1400-0-9" }
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+};
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+
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+
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+static int proc_ucb1400_ac97_gpio_write(struct file *file, const char __user *buf,
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+ unsigned long count, void *data)
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+{
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+ char *cur, lbuf[count + 1];
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+ gpio_summary_type *summary = data;
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+ u32 direction_is_out, operation_is_set;
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+ int i = summary->gpio;
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+ u16 dir, value;
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+
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+ if (!capable(CAP_SYS_ADMIN))
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+ return -EACCES;
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+
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+ memset(lbuf, 0, count + 1);
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+
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+ if (copy_from_user(lbuf, buf, count))
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+ return -EFAULT;
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+
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+ cur = lbuf;
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+
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+ // Get current values
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+ direction_is_out = !!(snd_ac97_read(summary->ac97, 0x5c) & (0x0001 << i));
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+ operation_is_set = !!(snd_ac97_read(summary->ac97, 0x5a) & (0x0001 << i));
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+ while(1)
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+ {
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+ // We accept options: {GPIO|AF1|AF2|AF3}, {set|clear}, {in|out}
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+ // Anything else is an error
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+ while(cur[0] && (isspace(cur[0]) || ispunct(cur[0]))) cur = &(cur[1]);
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+
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+ if('\0' == cur[0]) break;
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+
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+ // Ok, so now we're pointing at the start of something
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+ switch(cur[0])
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+ {
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+ case 'G':
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+ // Check that next is "PIO" -- '\0' will cause safe short-circuit if end of buf
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+ if(!(cur[1] == 'P' && cur[2] == 'I' && cur[3] == 'O')) goto parse_error;
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+ cur = &(cur[4]);
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+ break;
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+ case 's':
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+ if(!(cur[1] == 'e' && cur[2] == 't')) goto parse_error;
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+ operation_is_set = 1;
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+ cur = &(cur[3]);
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+ break;
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+ case 'c':
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+ if(!(cur[1] == 'l' && cur[2] == 'e' && cur[3] == 'a' && cur[4] == 'r')) goto
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+parse_error;
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+ operation_is_set = 0;
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+ cur = &(cur[5]);
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+ break;
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+ case 'i':
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+ if(!(cur[1] == 'n')) goto parse_error;
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+ direction_is_out = 0;
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+ cur = &(cur[2]);
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+ break;
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+ case 'o':
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+ if(!(cur[1] == 'u' && cur[2] == 't')) goto parse_error;
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+ direction_is_out = 1;
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+ cur = &(cur[3]);
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+ break;
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+ default: goto parse_error;
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+ }
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+ }
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+
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+ // set/get value
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+ dir = snd_ac97_read(summary->ac97, 0x5c);
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+ value = snd_ac97_read(summary->ac97, 0x5a);
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+ if (direction_is_out)
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+ {
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+ dir |= 0x0001 << i;
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+ if (operation_is_set)
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+ {
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+ value |= 0x0001 << i;
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+ }
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+ else
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+ {
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+ value &= ~(0x0001 << i);
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+ }
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+
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+ snd_ac97_write(summary->ac97, 0x5c, dir);
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+ snd_ac97_write(summary->ac97, 0x5a, value);
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+ }
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+ else // direction in
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+ {
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+ dir &= ~(0x0001 << i);
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+ snd_ac97_write(summary->ac97, 0x5c, dir);
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+ operation_is_set = snd_ac97_read(summary->ac97, 0x5a) & ~(0x0001 << i);
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+ }
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+
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+#ifdef CONFIG_PROC_GPIO_DEBUG
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+ printk(KERN_INFO "Set (%s,%s,%s) via /proc/gpio/%s\n",
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+ "GPIO",
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+ direction_is_out ? "out" : "in",
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+ operation_is_set ? "set" : "clear",
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+ summary->name);
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+#endif
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+
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+ return count;
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+
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+parse_error:
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+ printk(KERN_CRIT "Parse error: Expect \"GPIO|[set|clear]|[in|out] ...\"\n");
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+ return -EINVAL;
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+}
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+
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+static int proc_ucb1400_ac97_gpio_read(char *page, char **start, off_t off,
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+ int count, int *eof, void *data)
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+{
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+ char *p = page;
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+ gpio_summary_type *summary = data;
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+ int len, i; /*, af;*/
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+ i = summary->gpio;
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+
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+ p += sprintf(p, "%d\t%s\t%s\t%s\n", i,
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+ "GPIO",
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+ (snd_ac97_read(summary->ac97, 0x5c) & (0x0001 << i)) ? "out" : "in",
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+ (snd_ac97_read(summary->ac97, 0x5a) & (0x0001 << i)) ? "set" : "clear");
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+
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+ len = (p - page) - off;
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+
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+ if(len < 0)
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+ {
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+ len = 0;
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+ }
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+
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+ *eof = (len <= count) ? 1 : 0;
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+ *start = page + off;
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+
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+ return len;
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+}
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+
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+int patch_ucb1400(struct snd_ac97 * ac97)
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+{
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+ int err, i;
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+
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+ proc_gpio_parent = proc_mkdir("gpio", NULL);
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+ if(!proc_gpio_parent) return 0;
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+
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+ for(i=0; i < NUM_GPIO_LINES; i++)
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+ {
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+ proc_gpios[i] = create_proc_entry(gpio_summaries[i].name, 0644, proc_gpio_parent);
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+ if(proc_gpios[i])
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+ {
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+ gpio_summaries[i].ac97 = ac97;
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+ proc_gpios[i]->data = &gpio_summaries[i];
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+ proc_gpios[i]->read_proc = proc_ucb1400_ac97_gpio_read;
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+ proc_gpios[i]->write_proc = proc_ucb1400_ac97_gpio_write;
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+ }
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+ }
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+
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+ for(i = 0; i < ARRAY_SIZE(ucb1400_snd_ac97_controls); i++) {
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+ if((err = snd_ctl_add(ac97->bus->card, snd_ac97_cnew(&ucb1400_snd_ac97_controls[i], ac97))) < 0)
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+ return err;
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+ }
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+
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+ snd_ac97_write_cache(ac97, AC97_UCB1400_FCSR1,
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+ (0 << 11) | // 0 base boost
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+ (0 << 9) | // 0 treble boost
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+ (0 << 7) | // Mode = flat
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+ (1 << 6) | // Headphones enable
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+ (0 << 5) | // De-emphasis disabled
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+ (1 << 4) | // DC filter enabled
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+ (1 << 3) | // Hi-pass filter enabled
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+ (0 << 2) | // disable interrupt signalling via GPIO_INT
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+ (1 << 0) // clear ADC overflow status if set
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+ );
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+
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+ snd_ac97_write_cache(ac97, AC97_UCB1400_FCSR2,
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+ (0 << 15) | // must be 0
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+ (0 << 13) | // must be 0
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+ (1 << 12) | // ADC filter enabled
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+ (0 << 10) | // must be 0
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+ (0 << 4) | // Smart low power mode on neither Codec nor PLL
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+ (0 << 0) // must be 0
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+ );
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+
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+ return 0;
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+}
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+
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+/*
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* May 2, 2003 Liam Girdwood <liam.girdwood@wolfsonmicro.com>
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* removed broken wolfson00 patch.
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* added support for WM9705,WM9708,WM9709,WM9710,WM9711,WM9712 and WM9717.
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@@ -3408,41 +3633,3 @@ int patch_lm4550(struct snd_ac97 *ac97)
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ac97->res_table = lm4550_restbl;
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return 0;
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}
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-
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-/*
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- * UCB1400 codec (http://www.semiconductors.philips.com/acrobat_download/datasheets/UCB1400-02.pdf)
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- */
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-static const struct snd_kcontrol_new snd_ac97_controls_ucb1400[] = {
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-/* enable/disable headphone driver which allows direct connection to
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- stereo headphone without the use of external DC blocking
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- capacitors */
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-AC97_SINGLE("Headphone Driver", 0x6a, 6, 1, 0),
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-/* Filter used to compensate the DC offset is added in the ADC to remove idle
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- tones from the audio band. */
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-AC97_SINGLE("DC Filter", 0x6a, 4, 1, 0),
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-/* Control smart-low-power mode feature. Allows automatic power down
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- of unused blocks in the ADC analog front end and the PLL. */
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-AC97_SINGLE("Smart Low Power Mode", 0x6c, 4, 3, 0),
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-};
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-
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-static int patch_ucb1400_specific(struct snd_ac97 * ac97)
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-{
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- int idx, err;
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- for (idx = 0; idx < ARRAY_SIZE(snd_ac97_controls_ucb1400); idx++)
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- if ((err = snd_ctl_add(ac97->bus->card, snd_ctl_new1(&snd_ac97_controls_ucb1400[idx], ac97))) < 0)
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- return err;
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- return 0;
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-}
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-
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-static struct snd_ac97_build_ops patch_ucb1400_ops = {
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- .build_specific = patch_ucb1400_specific,
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-};
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-
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-int patch_ucb1400(struct snd_ac97 * ac97)
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-{
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- ac97->build_ops = &patch_ucb1400_ops;
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- /* enable headphone driver and smart low power mode by default */
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- snd_ac97_write(ac97, 0x6a, 0x0050);
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- snd_ac97_write(ac97, 0x6c, 0x0030);
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- return 0;
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-}
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