[PATCH] pmac: sound support for latest laptops

This patch hacks the current Alsa snd-powermac driver to add support for
recent machine models with the tas3004 chip, that is basically new laptop
models.  The Mac Mini is _NOT_ yet supported by this patch (soon soon ...).
 The G5s (iMac or Desktop) will need the rewritten sound driver on which
I'm working on (I _might_ get a hack for analog only on some G5s on the
current driver, but no promise).

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2 files changed, 53 insertions, 19 deletions

diff --git a/sound/ppc/pmac.c b/sound/ppc/pmac.c
index 6c4ed90f490e..f9a9601769aa 100644
--- a/sound/ppc/pmac.c
+++ b/sound/ppc/pmac.c
@@ -881,6 +881,7 @@ static int __init snd_pmac_detect(pmac_t *chip)
 {
         struct device_node *sound;
         unsigned int *prop, l;
+        u32 layout_id = 0;
 
         if (_machine != _MACH_Pmac)
                 return -ENODEV;
@@ -929,6 +930,9 @@ static int __init snd_pmac_detect(pmac_t *chip)
         prop = (unsigned int *) get_property(sound, "sub-frame", NULL);
         if (prop && *prop < 16)
                 chip->subframe = *prop;
+        prop = (unsigned int *) get_property(sound, "layout-id", NULL);
+        if (prop)
+                layout_id = *prop;
         /* This should be verified on older screamers */
         if (device_is_compatible(sound, "screamer")) {
                 chip->model = PMAC_SCREAMER;
@@ -961,12 +965,22 @@ static int __init snd_pmac_detect(pmac_t *chip)
                 chip->freq_table = tumbler_freqs;
                 chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */
         }
-        if (device_is_compatible(sound, "AOAKeylargo")) {
-                /* Seems to support the stock AWACS frequencies, but has
-                   a snapper mixer */
-                chip->model = PMAC_SNAPPER;
-                // chip->can_byte_swap = 0; /* FIXME: check this */
-                chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */
+        if (device_is_compatible(sound, "AOAKeylargo") ||
+            device_is_compatible(sound, "AOAbase")) {
+                /* For now, only support very basic TAS3004 based machines with
+                 * single frequency until proper i2s control is implemented
+                 */
+                switch(layout_id) {
+                case 0x48:
+                case 0x46:
+                case 0x33:
+                case 0x29:
+                        chip->num_freqs = ARRAY_SIZE(tumbler_freqs);
+                        chip->model = PMAC_SNAPPER;
+                        chip->can_byte_swap = 0; /* FIXME: check this */
+                        chip->control_mask = MASK_IEPC | 0x11; /* disable IEE */
+                        break;
+                }
         }
         prop = (unsigned int *)get_property(sound, "device-id", NULL);
         if (prop)
diff --git a/sound/ppc/tumbler.c b/sound/ppc/tumbler.c
index 7d10385f0a76..72a2219f56b5 100644
--- a/sound/ppc/tumbler.c
+++ b/sound/ppc/tumbler.c
@@ -37,6 +37,8 @@
 #include <asm/irq.h>
 #ifdef CONFIG_PPC_HAS_FEATURE_CALLS
 #include <asm/pmac_feature.h>
+#else
+#error old crap
 #endif
 #include "pmac.h"
 #include "tumbler_volume.h"
@@ -950,10 +952,10 @@ static struct device_node *find_compatible_audio_device(const char *name)
 }
 
 /* find an audio device and get its address */
-static unsigned long tumbler_find_device(const char *device, pmac_gpio_t *gp, int is_compatible)
+static long tumbler_find_device(const char *device, pmac_gpio_t *gp, int is_compatible)
 {
         struct device_node *node;
-        u32 *base;
+        u32 *base, addr;
 
         if (is_compatible)
                 node = find_compatible_audio_device(device);
@@ -966,21 +968,31 @@ static unsigned long tumbler_find_device(const char *device, pmac_gpio_t *gp, in
 
         base = (u32 *)get_property(node, "AAPL,address", NULL);
         if (! base) {
-                snd_printd("cannot find address for device %s\n", device);
-                return -ENODEV;
-        }
+                base = (u32 *)get_property(node, "reg", NULL);
+                if (!base) {
+                        snd_printd("cannot find address for device %s\n", device);
+                        return -ENODEV;
+                }
+                /* this only work if PPC_HAS_FEATURE_CALLS is set as we
+                 * are only getting the low part of the address
+                 */
+                addr = *base;
+                if (addr < 0x50)
+                        addr += 0x50;
+        } else
+                addr = *base;
 
 #ifdef CONFIG_PPC_HAS_FEATURE_CALLS
-        gp->addr = (*base) & 0x0000ffff;
+        gp->addr = addr & 0x0000ffff;
 #else
-        gp->addr = ioremap((unsigned long)(*base), 1);
+        gp->addr = ioremap((unsigned long)addr, 1);
 #endif
+        /* Try to find the active state, default to 0 ! */
         base = (u32 *)get_property(node, "audio-gpio-active-state", NULL);
         if (base)
                 gp->active_state = *base;
         else
-                gp->active_state = 1;
-
+                gp->active_state = 0;
 
         return (node->n_intrs > 0) ? node->intrs[0].line : 0;
 }
@@ -1039,11 +1051,16 @@ static int __init tumbler_init(pmac_t *chip)
         pmac_tumbler_t *mix = chip->mixer_data;
         snd_assert(mix, return -EINVAL);
 
-        tumbler_find_device("audio-hw-reset", &mix->audio_reset, 0);
-        tumbler_find_device("amp-mute", &mix->amp_mute, 0);
-        tumbler_find_device("headphone-mute", &mix->hp_mute, 0);
+        if (tumbler_find_device("audio-hw-reset", &mix->audio_reset, 0) < 0)
+                tumbler_find_device("hw-reset", &mix->audio_reset, 1);
+        if (tumbler_find_device("amp-mute", &mix->amp_mute, 0) < 0)
+                tumbler_find_device("amp-mute", &mix->amp_mute, 1);
+        if (tumbler_find_device("headphone-mute", &mix->hp_mute, 0) < 0)
+                tumbler_find_device("headphone-mute", &mix->hp_mute, 1);
         irq = tumbler_find_device("headphone-detect", &mix->hp_detect, 0);
         if (irq < 0)
+                irq = tumbler_find_device("headphone-detect", &mix->hp_detect, 1);
+        if (irq < 0)
                 irq = tumbler_find_device("keywest-gpio15", &mix->hp_detect, 1);
 
         tumbler_reset_audio(chip);
@@ -1109,9 +1126,13 @@ int __init snd_pmac_tumbler_init(pmac_t *chip)
         /* set up TAS */
         tas_node = find_devices("deq");
         if (tas_node == NULL)
+                tas_node = find_devices("codec");
+        if (tas_node == NULL)
                 return -ENODEV;
 
         paddr = (u32 *)get_property(tas_node, "i2c-address", NULL);
+        if (paddr == NULL)
+                paddr = (u32 *)get_property(tas_node, "reg", NULL);
         if (paddr)
                 mix->i2c.addr = (*paddr) >> 1;
         else
@@ -1156,7 +1177,6 @@ int __init snd_pmac_tumbler_init(pmac_t *chip)
         if ((err = snd_ctl_add(chip->card, chip->drc_sw_ctl)) < 0)
                 return err;
 
-
 #ifdef CONFIG_PMAC_PBOOK
         chip->resume = tumbler_resume;
 #endif