Linux-2.6.12-rc2v2.6.12-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!

1 files changed, 194 insertions, 0 deletions

diff --git a/sound/pci/ice1712/ak4xxx.c b/sound/pci/ice1712/ak4xxx.c
new file mode 100644
index 000000000000..ae9dc029ba0d
--- /dev/null
+++ b/sound/pci/ice1712/ak4xxx.c
@@ -0,0 +1,194 @@
+/*
+ *   ALSA driver for ICEnsemble ICE1712 (Envy24)
+ *
+ *   AK4524 / AK4528 / AK4529 / AK4355 / AK4381 interface
+ *
+ *      Copyright (c) 2000 Jaroslav Kysela <perex@suse.cz>
+ *
+ *   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 <asm/io.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <sound/core.h>
+#include <sound/initval.h>
+#include "ice1712.h"
+
+MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
+MODULE_DESCRIPTION("ICEnsemble ICE17xx <-> AK4xxx AD/DA chip interface");
+MODULE_LICENSE("GPL");
+
+static void snd_ice1712_akm4xxx_lock(akm4xxx_t *ak, int chip)
+{
+        ice1712_t *ice = ak->private_data[0];
+
+        snd_ice1712_save_gpio_status(ice);
+}
+
+static void snd_ice1712_akm4xxx_unlock(akm4xxx_t *ak, int chip)
+{
+        ice1712_t *ice = ak->private_data[0];
+
+        snd_ice1712_restore_gpio_status(ice);
+}
+
+/*
+ * write AK4xxx register
+ */
+static void snd_ice1712_akm4xxx_write(akm4xxx_t *ak, int chip,
+                                      unsigned char addr, unsigned char data)
+{
+        unsigned int tmp;
+        int idx;
+        unsigned int addrdata;
+        struct snd_ak4xxx_private *priv = (void *)ak->private_value[0];
+        ice1712_t *ice = ak->private_data[0];
+
+        snd_assert(chip >= 0 && chip < 4, return);
+
+        tmp = snd_ice1712_gpio_read(ice);
+        tmp |= priv->add_flags;
+        tmp &= ~priv->mask_flags;
+        if (priv->cs_mask == priv->cs_addr) {
+                if (priv->cif) {
+                        tmp |= priv->cs_mask; /* start without chip select */
+                }  else {
+                        tmp &= ~priv->cs_mask; /* chip select low */
+                        snd_ice1712_gpio_write(ice, tmp);
+                        udelay(1);
+                }
+        } else {
+                /* doesn't handle cf=1 yet */
+                tmp &= ~priv->cs_mask;
+                tmp |= priv->cs_addr;
+                snd_ice1712_gpio_write(ice, tmp);
+                udelay(1);
+        }
+
+        /* build I2C address + data byte */
+        addrdata = (priv->caddr << 6) | 0x20 | (addr & 0x1f);
+        addrdata = (addrdata << 8) | data;
+        for (idx = 15; idx >= 0; idx--) {
+                /* drop clock */
+                tmp &= ~priv->clk_mask;
+                snd_ice1712_gpio_write(ice, tmp);
+                udelay(1);
+                /* set data */
+                if (addrdata & (1 << idx))
+                        tmp |= priv->data_mask;
+                else
+                        tmp &= ~priv->data_mask;
+                snd_ice1712_gpio_write(ice, tmp);
+                udelay(1);
+                /* raise clock */
+                tmp |= priv->clk_mask;
+                snd_ice1712_gpio_write(ice, tmp);
+                udelay(1);
+        }
+
+        if (priv->cs_mask == priv->cs_addr) {
+                if (priv->cif) {
+                        /* assert a cs pulse to trigger */
+                        tmp &= ~priv->cs_mask;
+                        snd_ice1712_gpio_write(ice, tmp);
+                        udelay(1);
+                }
+                tmp |= priv->cs_mask; /* chip select high to trigger */
+        } else {
+                tmp &= ~priv->cs_mask;
+                tmp |= priv->cs_none; /* deselect address */
+        }
+        snd_ice1712_gpio_write(ice, tmp);
+        udelay(1);
+}
+
+/*
+ * initialize the akm4xxx_t record with the template
+ */
+int snd_ice1712_akm4xxx_init(akm4xxx_t *ak, const akm4xxx_t *temp,
+                             const struct snd_ak4xxx_private *_priv, ice1712_t *ice)
+{
+        struct snd_ak4xxx_private *priv;
+
+        if (_priv != NULL) {
+                priv = kmalloc(sizeof(*priv), GFP_KERNEL);
+                if (priv == NULL)
+                        return -ENOMEM;
+                *priv = *_priv;
+        } else {
+                priv = NULL;
+        }
+        *ak = *temp;
+        ak->card = ice->card;
+        ak->private_value[0] = (unsigned long)priv;
+        ak->private_data[0] = ice;
+        if (ak->ops.lock == NULL)
+                ak->ops.lock = snd_ice1712_akm4xxx_lock;
+        if (ak->ops.unlock == NULL)
+                ak->ops.unlock = snd_ice1712_akm4xxx_unlock;
+        if (ak->ops.write == NULL)
+                ak->ops.write = snd_ice1712_akm4xxx_write;
+        snd_akm4xxx_init(ak);
+        return 0;
+}
+
+void snd_ice1712_akm4xxx_free(ice1712_t *ice)
+{
+        unsigned int akidx;
+        if (ice->akm == NULL)
+                return;
+        for (akidx = 0; akidx < ice->akm_codecs; akidx++) {
+                akm4xxx_t *ak = &ice->akm[akidx];
+                kfree((void*)ak->private_value[0]);
+        }
+        kfree(ice->akm);
+}
+
+/*
+ * build AK4xxx controls
+ */
+int snd_ice1712_akm4xxx_build_controls(ice1712_t *ice)
+{
+        unsigned int akidx;
+        int err;
+
+        for (akidx = 0; akidx < ice->akm_codecs; akidx++) {
+                akm4xxx_t *ak = &ice->akm[akidx];
+                err = snd_akm4xxx_build_controls(ak);
+                if (err < 0)
+                        return err;
+        }
+        return 0;
+}
+
+static int __init alsa_ice1712_akm4xxx_module_init(void)
+{
+        return 0;
+}
+        
+static void __exit alsa_ice1712_akm4xxx_module_exit(void)
+{
+}
+        
+module_init(alsa_ice1712_akm4xxx_module_init)
+module_exit(alsa_ice1712_akm4xxx_module_exit)
+
+EXPORT_SYMBOL(snd_ice1712_akm4xxx_init);
+EXPORT_SYMBOL(snd_ice1712_akm4xxx_free);
+EXPORT_SYMBOL(snd_ice1712_akm4xxx_build_controls);