Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/sound/ppc/daca.c b/sound/ppc/daca.c
new file mode 100644
index 0000000..f24a916
--- /dev/null
+++ b/sound/ppc/daca.c
@@ -0,0 +1,283 @@
+/*
+ * PMac DACA lowlevel functions
+ *
+ * Copyright (c) by Takashi Iwai <tiwai@suse.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+
+#include <sound/driver.h>
+#include <linux/init.h>
+#include <linux/i2c.h>
+#include <linux/i2c-dev.h>
+#include <linux/kmod.h>
+#include <linux/slab.h>
+#include <sound/core.h>
+#include "pmac.h"
+
+/* i2c address */
+#define DACA_I2C_ADDR 0x4d
+
+/* registers */
+#define DACA_REG_SR 0x01
+#define DACA_REG_AVOL 0x02
+#define DACA_REG_GCFG 0x03
+
+/* maximum volume value */
+#define DACA_VOL_MAX 0x38
+
+
+typedef struct pmac_daca_t {
+ pmac_keywest_t i2c;
+ int left_vol, right_vol;
+ unsigned int deemphasis : 1;
+ unsigned int amp_on : 1;
+} pmac_daca_t;
+
+
+/*
+ * initialize / detect DACA
+ */
+static int daca_init_client(pmac_keywest_t *i2c)
+{
+ unsigned short wdata = 0x00;
+ /* SR: no swap, 1bit delay, 32-48kHz */
+ /* GCFG: power amp inverted, DAC on */
+ if (i2c_smbus_write_byte_data(i2c->client, DACA_REG_SR, 0x08) < 0 ||
+ i2c_smbus_write_byte_data(i2c->client, DACA_REG_GCFG, 0x05) < 0)
+ return -EINVAL;
+ return i2c_smbus_write_block_data(i2c->client, DACA_REG_AVOL,
+ 2, (unsigned char*)&wdata);
+}
+
+/*
+ * update volume
+ */
+static int daca_set_volume(pmac_daca_t *mix)
+{
+ unsigned char data[2];
+
+ if (! mix->i2c.client)
+ return -ENODEV;
+
+ if (mix->left_vol > DACA_VOL_MAX)
+ data[0] = DACA_VOL_MAX;
+ else
+ data[0] = mix->left_vol;
+ if (mix->right_vol > DACA_VOL_MAX)
+ data[1] = DACA_VOL_MAX;
+ else
+ data[1] = mix->right_vol;
+ data[1] |= mix->deemphasis ? 0x40 : 0;
+ if (i2c_smbus_write_block_data(mix->i2c.client, DACA_REG_AVOL,
+ 2, data) < 0) {
+ snd_printk("failed to set volume \n");
+ return -EINVAL;
+ }
+ return 0;
+}
+
+
+/* deemphasis switch */
+static int daca_info_deemphasis(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
+{
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+ uinfo->count = 1;
+ uinfo->value.integer.min = 0;
+ uinfo->value.integer.max = 1;
+ return 0;
+}
+
+static int daca_get_deemphasis(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+ pmac_t *chip = snd_kcontrol_chip(kcontrol);
+ pmac_daca_t *mix;
+ if (! (mix = chip->mixer_data))
+ return -ENODEV;
+ ucontrol->value.integer.value[0] = mix->deemphasis ? 1 : 0;
+ return 0;
+}
+
+static int daca_put_deemphasis(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+ pmac_t *chip = snd_kcontrol_chip(kcontrol);
+ pmac_daca_t *mix;
+ int change;
+
+ if (! (mix = chip->mixer_data))
+ return -ENODEV;
+ change = mix->deemphasis != ucontrol->value.integer.value[0];
+ if (change) {
+ mix->deemphasis = ucontrol->value.integer.value[0];
+ daca_set_volume(mix);
+ }
+ return change;
+}
+
+/* output volume */
+static int daca_info_volume(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
+{
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+ uinfo->count = 2;
+ uinfo->value.integer.min = 0;
+ uinfo->value.integer.max = DACA_VOL_MAX;
+ return 0;
+}
+
+static int daca_get_volume(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+ pmac_t *chip = snd_kcontrol_chip(kcontrol);
+ pmac_daca_t *mix;
+ if (! (mix = chip->mixer_data))
+ return -ENODEV;
+ ucontrol->value.integer.value[0] = mix->left_vol;
+ ucontrol->value.integer.value[1] = mix->right_vol;
+ return 0;
+}
+
+static int daca_put_volume(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+ pmac_t *chip = snd_kcontrol_chip(kcontrol);
+ pmac_daca_t *mix;
+ int change;
+
+ if (! (mix = chip->mixer_data))
+ return -ENODEV;
+ change = mix->left_vol != ucontrol->value.integer.value[0] ||
+ mix->right_vol != ucontrol->value.integer.value[1];
+ if (change) {
+ mix->left_vol = ucontrol->value.integer.value[0];
+ mix->right_vol = ucontrol->value.integer.value[1];
+ daca_set_volume(mix);
+ }
+ return change;
+}
+
+/* amplifier switch */
+#define daca_info_amp daca_info_deemphasis
+
+static int daca_get_amp(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+ pmac_t *chip = snd_kcontrol_chip(kcontrol);
+ pmac_daca_t *mix;
+ if (! (mix = chip->mixer_data))
+ return -ENODEV;
+ ucontrol->value.integer.value[0] = mix->amp_on ? 1 : 0;
+ return 0;
+}
+
+static int daca_put_amp(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+ pmac_t *chip = snd_kcontrol_chip(kcontrol);
+ pmac_daca_t *mix;
+ int change;
+
+ if (! (mix = chip->mixer_data))
+ return -ENODEV;
+ change = mix->amp_on != ucontrol->value.integer.value[0];
+ if (change) {
+ mix->amp_on = ucontrol->value.integer.value[0];
+ i2c_smbus_write_byte_data(mix->i2c.client, DACA_REG_GCFG,
+ mix->amp_on ? 0x05 : 0x04);
+ }
+ return change;
+}
+
+static snd_kcontrol_new_t daca_mixers[] = {
+ { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "Deemphasis Switch",
+ .info = daca_info_deemphasis,
+ .get = daca_get_deemphasis,
+ .put = daca_put_deemphasis
+ },
+ { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "Master Playback Volume",
+ .info = daca_info_volume,
+ .get = daca_get_volume,
+ .put = daca_put_volume
+ },
+ { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "Power Amplifier Switch",
+ .info = daca_info_amp,
+ .get = daca_get_amp,
+ .put = daca_put_amp
+ },
+};
+
+
+#ifdef CONFIG_PMAC_PBOOK
+static void daca_resume(pmac_t *chip)
+{
+ pmac_daca_t *mix = chip->mixer_data;
+ i2c_smbus_write_byte_data(mix->i2c.client, DACA_REG_SR, 0x08);
+ i2c_smbus_write_byte_data(mix->i2c.client, DACA_REG_GCFG,
+ mix->amp_on ? 0x05 : 0x04);
+ daca_set_volume(mix);
+}
+#endif /* CONFIG_PMAC_PBOOK */
+
+
+static void daca_cleanup(pmac_t *chip)
+{
+ pmac_daca_t *mix = chip->mixer_data;
+ if (! mix)
+ return;
+ snd_pmac_keywest_cleanup(&mix->i2c);
+ kfree(mix);
+ chip->mixer_data = NULL;
+}
+
+/* exported */
+int __init snd_pmac_daca_init(pmac_t *chip)
+{
+ int i, err;
+ pmac_daca_t *mix;
+
+#ifdef CONFIG_KMOD
+ if (current->fs->root)
+ request_module("i2c-keywest");
+#endif /* CONFIG_KMOD */
+
+ mix = kmalloc(sizeof(*mix), GFP_KERNEL);
+ if (! mix)
+ return -ENOMEM;
+ memset(mix, 0, sizeof(*mix));
+ chip->mixer_data = mix;
+ chip->mixer_free = daca_cleanup;
+ mix->amp_on = 1; /* default on */
+
+ mix->i2c.addr = DACA_I2C_ADDR;
+ mix->i2c.init_client = daca_init_client;
+ mix->i2c.name = "DACA";
+ if ((err = snd_pmac_keywest_init(&mix->i2c)) < 0)
+ return err;
+
+ /*
+ * build mixers
+ */
+ strcpy(chip->card->mixername, "PowerMac DACA");
+
+ for (i = 0; i < ARRAY_SIZE(daca_mixers); i++) {
+ if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&daca_mixers[i], chip))) < 0)
+ return err;
+ }
+
+#ifdef CONFIG_PMAC_PBOOK
+ chip->resume = daca_resume;
+#endif
+
+ return 0;
+}