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/isa/ad1848/ad1848_lib.c b/sound/isa/ad1848/ad1848_lib.c
new file mode 100644
index 0000000..8fb3db1
--- /dev/null
+++ b/sound/isa/ad1848/ad1848_lib.c
@@ -0,0 +1,1279 @@
+/*
+ * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
+ * Routines for control of AD1848/AD1847/CS4248
+ *
+ *
+ * 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
+ *
+ */
+
+#define SNDRV_MAIN_OBJECT_FILE
+#include <sound/driver.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/pm.h>
+#include <linux/slab.h>
+#include <linux/ioport.h>
+#include <sound/core.h>
+#include <sound/ad1848.h>
+#include <sound/control.h>
+#include <sound/pcm_params.h>
+
+#include <asm/io.h>
+#include <asm/dma.h>
+
+MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
+MODULE_DESCRIPTION("Routines for control of AD1848/AD1847/CS4248");
+MODULE_LICENSE("GPL");
+
+#if 0
+#define SNDRV_DEBUG_MCE
+#endif
+
+/*
+ * Some variables
+ */
+
+static unsigned char freq_bits[14] = {
+ /* 5510 */ 0x00 | AD1848_XTAL2,
+ /* 6620 */ 0x0E | AD1848_XTAL2,
+ /* 8000 */ 0x00 | AD1848_XTAL1,
+ /* 9600 */ 0x0E | AD1848_XTAL1,
+ /* 11025 */ 0x02 | AD1848_XTAL2,
+ /* 16000 */ 0x02 | AD1848_XTAL1,
+ /* 18900 */ 0x04 | AD1848_XTAL2,
+ /* 22050 */ 0x06 | AD1848_XTAL2,
+ /* 27042 */ 0x04 | AD1848_XTAL1,
+ /* 32000 */ 0x06 | AD1848_XTAL1,
+ /* 33075 */ 0x0C | AD1848_XTAL2,
+ /* 37800 */ 0x08 | AD1848_XTAL2,
+ /* 44100 */ 0x0A | AD1848_XTAL2,
+ /* 48000 */ 0x0C | AD1848_XTAL1
+};
+
+static unsigned int rates[14] = {
+ 5510, 6620, 8000, 9600, 11025, 16000, 18900, 22050,
+ 27042, 32000, 33075, 37800, 44100, 48000
+};
+
+static snd_pcm_hw_constraint_list_t hw_constraints_rates = {
+ .count = 14,
+ .list = rates,
+ .mask = 0,
+};
+
+static unsigned char snd_ad1848_original_image[16] =
+{
+ 0x00, /* 00 - lic */
+ 0x00, /* 01 - ric */
+ 0x9f, /* 02 - la1ic */
+ 0x9f, /* 03 - ra1ic */
+ 0x9f, /* 04 - la2ic */
+ 0x9f, /* 05 - ra2ic */
+ 0xbf, /* 06 - loc */
+ 0xbf, /* 07 - roc */
+ 0x20, /* 08 - dfr */
+ AD1848_AUTOCALIB, /* 09 - ic */
+ 0x00, /* 0a - pc */
+ 0x00, /* 0b - ti */
+ 0x00, /* 0c - mi */
+ 0x00, /* 0d - lbc */
+ 0x00, /* 0e - dru */
+ 0x00, /* 0f - drl */
+};
+
+/*
+ * Basic I/O functions
+ */
+
+void snd_ad1848_out(ad1848_t *chip,
+ unsigned char reg,
+ unsigned char value)
+{
+ int timeout;
+
+ for (timeout = 250; timeout > 0 && (inb(AD1848P(chip, REGSEL)) & AD1848_INIT); timeout--)
+ udelay(100);
+#ifdef CONFIG_SND_DEBUG
+ if (inb(AD1848P(chip, REGSEL)) & AD1848_INIT)
+ snd_printk("auto calibration time out - reg = 0x%x, value = 0x%x\n", reg, value);
+#endif
+ outb(chip->mce_bit | reg, AD1848P(chip, REGSEL));
+ outb(chip->image[reg] = value, AD1848P(chip, REG));
+ mb();
+#if 0
+ printk("codec out - reg 0x%x = 0x%x\n", chip->mce_bit | reg, value);
+#endif
+}
+
+static void snd_ad1848_dout(ad1848_t *chip,
+ unsigned char reg, unsigned char value)
+{
+ int timeout;
+
+ for (timeout = 250; timeout > 0 && (inb(AD1848P(chip, REGSEL)) & AD1848_INIT); timeout--)
+ udelay(100);
+ outb(chip->mce_bit | reg, AD1848P(chip, REGSEL));
+ outb(value, AD1848P(chip, REG));
+ mb();
+}
+
+static unsigned char snd_ad1848_in(ad1848_t *chip, unsigned char reg)
+{
+ int timeout;
+
+ for (timeout = 250; timeout > 0 && (inb(AD1848P(chip, REGSEL)) & AD1848_INIT); timeout--)
+ udelay(100);
+#ifdef CONFIG_SND_DEBUG
+ if (inb(AD1848P(chip, REGSEL)) & AD1848_INIT)
+ snd_printk("auto calibration time out - reg = 0x%x\n", reg);
+#endif
+ outb(chip->mce_bit | reg, AD1848P(chip, REGSEL));
+ mb();
+ return inb(AD1848P(chip, REG));
+}
+
+#if 0
+
+static void snd_ad1848_debug(ad1848_t *chip)
+{
+ printk("AD1848 REGS: INDEX = 0x%02x ", inb(AD1848P(chip, REGSEL)));
+ printk(" STATUS = 0x%02x\n", inb(AD1848P(chip, STATUS)));
+ printk(" 0x00: left input = 0x%02x ", snd_ad1848_in(chip, 0x00));
+ printk(" 0x08: playback format = 0x%02x\n", snd_ad1848_in(chip, 0x08));
+ printk(" 0x01: right input = 0x%02x ", snd_ad1848_in(chip, 0x01));
+ printk(" 0x09: iface (CFIG 1) = 0x%02x\n", snd_ad1848_in(chip, 0x09));
+ printk(" 0x02: AUXA left = 0x%02x ", snd_ad1848_in(chip, 0x02));
+ printk(" 0x0a: pin control = 0x%02x\n", snd_ad1848_in(chip, 0x0a));
+ printk(" 0x03: AUXA right = 0x%02x ", snd_ad1848_in(chip, 0x03));
+ printk(" 0x0b: init & status = 0x%02x\n", snd_ad1848_in(chip, 0x0b));
+ printk(" 0x04: AUXB left = 0x%02x ", snd_ad1848_in(chip, 0x04));
+ printk(" 0x0c: revision & mode = 0x%02x\n", snd_ad1848_in(chip, 0x0c));
+ printk(" 0x05: AUXB right = 0x%02x ", snd_ad1848_in(chip, 0x05));
+ printk(" 0x0d: loopback = 0x%02x\n", snd_ad1848_in(chip, 0x0d));
+ printk(" 0x06: left output = 0x%02x ", snd_ad1848_in(chip, 0x06));
+ printk(" 0x0e: data upr count = 0x%02x\n", snd_ad1848_in(chip, 0x0e));
+ printk(" 0x07: right output = 0x%02x ", snd_ad1848_in(chip, 0x07));
+ printk(" 0x0f: data lwr count = 0x%02x\n", snd_ad1848_in(chip, 0x0f));
+}
+
+#endif
+
+/*
+ * AD1848 detection / MCE routines
+ */
+
+static void snd_ad1848_mce_up(ad1848_t *chip)
+{
+ unsigned long flags;
+ int timeout;
+
+ for (timeout = 250; timeout > 0 && (inb(AD1848P(chip, REGSEL)) & AD1848_INIT); timeout--)
+ udelay(100);
+#ifdef CONFIG_SND_DEBUG
+ if (inb(AD1848P(chip, REGSEL)) & AD1848_INIT)
+ snd_printk("mce_up - auto calibration time out (0)\n");
+#endif
+ spin_lock_irqsave(&chip->reg_lock, flags);
+ chip->mce_bit |= AD1848_MCE;
+ timeout = inb(AD1848P(chip, REGSEL));
+ if (timeout == 0x80)
+ snd_printk("mce_up [0x%lx]: serious init problem - codec still busy\n", chip->port);
+ if (!(timeout & AD1848_MCE))
+ outb(chip->mce_bit | (timeout & 0x1f), AD1848P(chip, REGSEL));
+ spin_unlock_irqrestore(&chip->reg_lock, flags);
+}
+
+static void snd_ad1848_mce_down(ad1848_t *chip)
+{
+ unsigned long flags;
+ int timeout;
+ signed long time;
+
+ spin_lock_irqsave(&chip->reg_lock, flags);
+ for (timeout = 5; timeout > 0; timeout--)
+ inb(AD1848P(chip, REGSEL));
+ /* end of cleanup sequence */
+ for (timeout = 12000; timeout > 0 && (inb(AD1848P(chip, REGSEL)) & AD1848_INIT); timeout--)
+ udelay(100);
+#if 0
+ printk("(1) timeout = %i\n", timeout);
+#endif
+#ifdef CONFIG_SND_DEBUG
+ if (inb(AD1848P(chip, REGSEL)) & AD1848_INIT)
+ snd_printk("mce_down [0x%lx] - auto calibration time out (0)\n", AD1848P(chip, REGSEL));
+#endif
+ chip->mce_bit &= ~AD1848_MCE;
+ timeout = inb(AD1848P(chip, REGSEL));
+ outb(chip->mce_bit | (timeout & 0x1f), AD1848P(chip, REGSEL));
+ if (timeout == 0x80)
+ snd_printk("mce_down [0x%lx]: serious init problem - codec still busy\n", chip->port);
+ if ((timeout & AD1848_MCE) == 0) {
+ spin_unlock_irqrestore(&chip->reg_lock, flags);
+ return;
+ }
+ /* calibration process */
+
+ for (timeout = 500; timeout > 0 && (snd_ad1848_in(chip, AD1848_TEST_INIT) & AD1848_CALIB_IN_PROGRESS) == 0; timeout--);
+ if ((snd_ad1848_in(chip, AD1848_TEST_INIT) & AD1848_CALIB_IN_PROGRESS) == 0) {
+ snd_printd("mce_down - auto calibration time out (1)\n");
+ spin_unlock_irqrestore(&chip->reg_lock, flags);
+ return;
+ }
+#if 0
+ printk("(2) timeout = %i, jiffies = %li\n", timeout, jiffies);
+#endif
+ time = HZ / 4;
+ while (snd_ad1848_in(chip, AD1848_TEST_INIT) & AD1848_CALIB_IN_PROGRESS) {
+ spin_unlock_irqrestore(&chip->reg_lock, flags);
+ if (time <= 0) {
+ snd_printk("mce_down - auto calibration time out (2)\n");
+ return;
+ }
+ set_current_state(TASK_INTERRUPTIBLE);
+ time = schedule_timeout(time);
+ spin_lock_irqsave(&chip->reg_lock, flags);
+ }
+#if 0
+ printk("(3) jiffies = %li\n", jiffies);
+#endif
+ time = HZ / 10;
+ while (inb(AD1848P(chip, REGSEL)) & AD1848_INIT) {
+ spin_unlock_irqrestore(&chip->reg_lock, flags);
+ if (time <= 0) {
+ snd_printk("mce_down - auto calibration time out (3)\n");
+ return;
+ }
+ set_current_state(TASK_INTERRUPTIBLE);
+ time = schedule_timeout(time);
+ spin_lock_irqsave(&chip->reg_lock, flags);
+ }
+ spin_unlock_irqrestore(&chip->reg_lock, flags);
+#if 0
+ printk("(4) jiffies = %li\n", jiffies);
+ snd_printk("mce_down - exit = 0x%x\n", inb(AD1848P(chip, REGSEL)));
+#endif
+}
+
+static unsigned int snd_ad1848_get_count(unsigned char format,
+ unsigned int size)
+{
+ switch (format & 0xe0) {
+ case AD1848_LINEAR_16:
+ size >>= 1;
+ break;
+ }
+ if (format & AD1848_STEREO)
+ size >>= 1;
+ return size;
+}
+
+static int snd_ad1848_trigger(ad1848_t *chip, unsigned char what,
+ int channel, int cmd)
+{
+ int result = 0;
+
+#if 0
+ printk("codec trigger!!! - what = %i, enable = %i, status = 0x%x\n", what, enable, inb(AD1848P(card, STATUS)));
+#endif
+ spin_lock(&chip->reg_lock);
+ if (cmd == SNDRV_PCM_TRIGGER_START) {
+ if (chip->image[AD1848_IFACE_CTRL] & what) {
+ spin_unlock(&chip->reg_lock);
+ return 0;
+ }
+ snd_ad1848_out(chip, AD1848_IFACE_CTRL, chip->image[AD1848_IFACE_CTRL] |= what);
+ chip->mode |= AD1848_MODE_RUNNING;
+ } else if (cmd == SNDRV_PCM_TRIGGER_STOP) {
+ if (!(chip->image[AD1848_IFACE_CTRL] & what)) {
+ spin_unlock(&chip->reg_lock);
+ return 0;
+ }
+ snd_ad1848_out(chip, AD1848_IFACE_CTRL, chip->image[AD1848_IFACE_CTRL] &= ~what);
+ chip->mode &= ~AD1848_MODE_RUNNING;
+ } else {
+ result = -EINVAL;
+ }
+ spin_unlock(&chip->reg_lock);
+ return result;
+}
+
+/*
+ * CODEC I/O
+ */
+
+static unsigned char snd_ad1848_get_rate(unsigned int rate)
+{
+ int i;
+
+ for (i = 0; i < 14; i++)
+ if (rate == rates[i])
+ return freq_bits[i];
+ snd_BUG();
+ return freq_bits[13];
+}
+
+static int snd_ad1848_ioctl(snd_pcm_substream_t * substream,
+ unsigned int cmd, void *arg)
+{
+ return snd_pcm_lib_ioctl(substream, cmd, arg);
+}
+
+static unsigned char snd_ad1848_get_format(int format, int channels)
+{
+ unsigned char rformat;
+
+ rformat = AD1848_LINEAR_8;
+ switch (format) {
+ case SNDRV_PCM_FORMAT_A_LAW: rformat = AD1848_ALAW_8; break;
+ case SNDRV_PCM_FORMAT_MU_LAW: rformat = AD1848_ULAW_8; break;
+ case SNDRV_PCM_FORMAT_S16_LE: rformat = AD1848_LINEAR_16; break;
+ }
+ if (channels > 1)
+ rformat |= AD1848_STEREO;
+#if 0
+ snd_printk("get_format: 0x%x (mode=0x%x)\n", format, mode);
+#endif
+ return rformat;
+}
+
+static void snd_ad1848_calibrate_mute(ad1848_t *chip, int mute)
+{
+ unsigned long flags;
+
+ mute = mute ? 1 : 0;
+ spin_lock_irqsave(&chip->reg_lock, flags);
+ if (chip->calibrate_mute == mute) {
+ spin_unlock_irqrestore(&chip->reg_lock, flags);
+ return;
+ }
+ if (!mute) {
+ snd_ad1848_dout(chip, AD1848_LEFT_INPUT, chip->image[AD1848_LEFT_INPUT]);
+ snd_ad1848_dout(chip, AD1848_RIGHT_INPUT, chip->image[AD1848_RIGHT_INPUT]);
+ }
+ snd_ad1848_dout(chip, AD1848_AUX1_LEFT_INPUT, mute ? 0x80 : chip->image[AD1848_AUX1_LEFT_INPUT]);
+ snd_ad1848_dout(chip, AD1848_AUX1_RIGHT_INPUT, mute ? 0x80 : chip->image[AD1848_AUX1_RIGHT_INPUT]);
+ snd_ad1848_dout(chip, AD1848_AUX2_LEFT_INPUT, mute ? 0x80 : chip->image[AD1848_AUX2_LEFT_INPUT]);
+ snd_ad1848_dout(chip, AD1848_AUX2_RIGHT_INPUT, mute ? 0x80 : chip->image[AD1848_AUX2_RIGHT_INPUT]);
+ snd_ad1848_dout(chip, AD1848_LEFT_OUTPUT, mute ? 0x80 : chip->image[AD1848_LEFT_OUTPUT]);
+ snd_ad1848_dout(chip, AD1848_RIGHT_OUTPUT, mute ? 0x80 : chip->image[AD1848_RIGHT_OUTPUT]);
+ chip->calibrate_mute = mute;
+ spin_unlock_irqrestore(&chip->reg_lock, flags);
+}
+
+static void snd_ad1848_set_data_format(ad1848_t *chip, snd_pcm_hw_params_t *hw_params)
+{
+ if (hw_params == NULL) {
+ chip->image[AD1848_DATA_FORMAT] = 0x20;
+ } else {
+ chip->image[AD1848_DATA_FORMAT] =
+ snd_ad1848_get_format(params_format(hw_params), params_channels(hw_params)) |
+ snd_ad1848_get_rate(params_rate(hw_params));
+ }
+ // snd_printk(">>> pmode = 0x%x, dfr = 0x%x\n", pstr->mode, chip->image[AD1848_DATA_FORMAT]);
+}
+
+static int snd_ad1848_open(ad1848_t *chip, unsigned int mode)
+{
+ unsigned long flags;
+
+ down(&chip->open_mutex);
+ if (chip->mode & AD1848_MODE_OPEN) {
+ up(&chip->open_mutex);
+ return -EAGAIN;
+ }
+ snd_ad1848_mce_down(chip);
+
+#ifdef SNDRV_DEBUG_MCE
+ snd_printk("open: (1)\n");
+#endif
+ snd_ad1848_mce_up(chip);
+ spin_lock_irqsave(&chip->reg_lock, flags);
+ chip->image[AD1848_IFACE_CTRL] &= ~(AD1848_PLAYBACK_ENABLE | AD1848_PLAYBACK_PIO |
+ AD1848_CAPTURE_ENABLE | AD1848_CAPTURE_PIO |
+ AD1848_CALIB_MODE);
+ chip->image[AD1848_IFACE_CTRL] |= AD1848_AUTOCALIB;
+ snd_ad1848_out(chip, AD1848_IFACE_CTRL, chip->image[AD1848_IFACE_CTRL]);
+ spin_unlock_irqrestore(&chip->reg_lock, flags);
+ snd_ad1848_mce_down(chip);
+
+#ifdef SNDRV_DEBUG_MCE
+ snd_printk("open: (2)\n");
+#endif
+
+ snd_ad1848_set_data_format(chip, NULL);
+
+ snd_ad1848_mce_up(chip);
+ spin_lock_irqsave(&chip->reg_lock, flags);
+ snd_ad1848_out(chip, AD1848_DATA_FORMAT, chip->image[AD1848_DATA_FORMAT]);
+ spin_unlock_irqrestore(&chip->reg_lock, flags);
+ snd_ad1848_mce_down(chip);
+
+#ifdef SNDRV_DEBUG_MCE
+ snd_printk("open: (3)\n");
+#endif
+
+ /* ok. now enable and ack CODEC IRQ */
+ spin_lock_irqsave(&chip->reg_lock, flags);
+ outb(0, AD1848P(chip, STATUS)); /* clear IRQ */
+ outb(0, AD1848P(chip, STATUS)); /* clear IRQ */
+ chip->image[AD1848_PIN_CTRL] |= AD1848_IRQ_ENABLE;
+ snd_ad1848_out(chip, AD1848_PIN_CTRL, chip->image[AD1848_PIN_CTRL]);
+ spin_unlock_irqrestore(&chip->reg_lock, flags);
+
+ chip->mode = mode;
+ up(&chip->open_mutex);
+
+ return 0;
+}
+
+static void snd_ad1848_close(ad1848_t *chip)
+{
+ unsigned long flags;
+
+ down(&chip->open_mutex);
+ if (!chip->mode) {
+ up(&chip->open_mutex);
+ return;
+ }
+ /* disable IRQ */
+ spin_lock_irqsave(&chip->reg_lock, flags);
+ outb(0, AD1848P(chip, STATUS)); /* clear IRQ */
+ outb(0, AD1848P(chip, STATUS)); /* clear IRQ */
+ chip->image[AD1848_PIN_CTRL] &= ~AD1848_IRQ_ENABLE;
+ snd_ad1848_out(chip, AD1848_PIN_CTRL, chip->image[AD1848_PIN_CTRL]);
+ spin_unlock_irqrestore(&chip->reg_lock, flags);
+
+ /* now disable capture & playback */
+
+ snd_ad1848_mce_up(chip);
+ spin_lock_irqsave(&chip->reg_lock, flags);
+ chip->image[AD1848_IFACE_CTRL] &= ~(AD1848_PLAYBACK_ENABLE | AD1848_PLAYBACK_PIO |
+ AD1848_CAPTURE_ENABLE | AD1848_CAPTURE_PIO);
+ snd_ad1848_out(chip, AD1848_IFACE_CTRL, chip->image[AD1848_IFACE_CTRL]);
+ spin_unlock_irqrestore(&chip->reg_lock, flags);
+ snd_ad1848_mce_down(chip);
+
+ /* clear IRQ again */
+ spin_lock_irqsave(&chip->reg_lock, flags);
+ outb(0, AD1848P(chip, STATUS)); /* clear IRQ */
+ outb(0, AD1848P(chip, STATUS)); /* clear IRQ */
+ spin_unlock_irqrestore(&chip->reg_lock, flags);
+
+ chip->mode = 0;
+ up(&chip->open_mutex);
+}
+
+/*
+ * ok.. exported functions..
+ */
+
+static int snd_ad1848_playback_trigger(snd_pcm_substream_t * substream,
+ int cmd)
+{
+ ad1848_t *chip = snd_pcm_substream_chip(substream);
+ return snd_ad1848_trigger(chip, AD1848_PLAYBACK_ENABLE, SNDRV_PCM_STREAM_PLAYBACK, cmd);
+}
+
+static int snd_ad1848_capture_trigger(snd_pcm_substream_t * substream,
+ int cmd)
+{
+ ad1848_t *chip = snd_pcm_substream_chip(substream);
+ return snd_ad1848_trigger(chip, AD1848_CAPTURE_ENABLE, SNDRV_PCM_STREAM_CAPTURE, cmd);
+}
+
+static int snd_ad1848_playback_hw_params(snd_pcm_substream_t * substream,
+ snd_pcm_hw_params_t * hw_params)
+{
+ ad1848_t *chip = snd_pcm_substream_chip(substream);
+ unsigned long flags;
+ int err;
+
+ if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
+ return err;
+ snd_ad1848_calibrate_mute(chip, 1);
+ snd_ad1848_set_data_format(chip, hw_params);
+ snd_ad1848_mce_up(chip);
+ spin_lock_irqsave(&chip->reg_lock, flags);
+ snd_ad1848_out(chip, AD1848_DATA_FORMAT, chip->image[AD1848_DATA_FORMAT]);
+ spin_unlock_irqrestore(&chip->reg_lock, flags);
+ snd_ad1848_mce_down(chip);
+ snd_ad1848_calibrate_mute(chip, 0);
+ return 0;
+}
+
+static int snd_ad1848_playback_hw_free(snd_pcm_substream_t * substream)
+{
+ return snd_pcm_lib_free_pages(substream);
+}
+
+static int snd_ad1848_playback_prepare(snd_pcm_substream_t * substream)
+{
+ ad1848_t *chip = snd_pcm_substream_chip(substream);
+ snd_pcm_runtime_t *runtime = substream->runtime;
+ unsigned long flags;
+ unsigned int size = snd_pcm_lib_buffer_bytes(substream);
+ unsigned int count = snd_pcm_lib_period_bytes(substream);
+
+ chip->dma_size = size;
+ chip->image[AD1848_IFACE_CTRL] &= ~(AD1848_PLAYBACK_ENABLE | AD1848_PLAYBACK_PIO);
+ snd_dma_program(chip->dma, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT);
+ count = snd_ad1848_get_count(chip->image[AD1848_DATA_FORMAT], count) - 1;
+ spin_lock_irqsave(&chip->reg_lock, flags);
+ snd_ad1848_out(chip, AD1848_DATA_LWR_CNT, (unsigned char) count);
+ snd_ad1848_out(chip, AD1848_DATA_UPR_CNT, (unsigned char) (count >> 8));
+ spin_unlock_irqrestore(&chip->reg_lock, flags);
+ return 0;
+}
+
+static int snd_ad1848_capture_hw_params(snd_pcm_substream_t * substream,
+ snd_pcm_hw_params_t * hw_params)
+{
+ ad1848_t *chip = snd_pcm_substream_chip(substream);
+ unsigned long flags;
+ int err;
+
+ if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
+ return err;
+ snd_ad1848_calibrate_mute(chip, 1);
+ snd_ad1848_set_data_format(chip, hw_params);
+ snd_ad1848_mce_up(chip);
+ spin_lock_irqsave(&chip->reg_lock, flags);
+ snd_ad1848_out(chip, AD1848_DATA_FORMAT, chip->image[AD1848_DATA_FORMAT]);
+ spin_unlock_irqrestore(&chip->reg_lock, flags);
+ snd_ad1848_mce_down(chip);
+ snd_ad1848_calibrate_mute(chip, 0);
+ return 0;
+}
+
+static int snd_ad1848_capture_hw_free(snd_pcm_substream_t * substream)
+{
+ return snd_pcm_lib_free_pages(substream);
+}
+
+static int snd_ad1848_capture_prepare(snd_pcm_substream_t * substream)
+{
+ ad1848_t *chip = snd_pcm_substream_chip(substream);
+ snd_pcm_runtime_t *runtime = substream->runtime;
+ unsigned long flags;
+ unsigned int size = snd_pcm_lib_buffer_bytes(substream);
+ unsigned int count = snd_pcm_lib_period_bytes(substream);
+
+ chip->dma_size = size;
+ chip->image[AD1848_IFACE_CTRL] &= ~(AD1848_CAPTURE_ENABLE | AD1848_CAPTURE_PIO);
+ snd_dma_program(chip->dma, runtime->dma_addr, size, DMA_MODE_READ | DMA_AUTOINIT);
+ count = snd_ad1848_get_count(chip->image[AD1848_DATA_FORMAT], count) - 1;
+ spin_lock_irqsave(&chip->reg_lock, flags);
+ snd_ad1848_out(chip, AD1848_DATA_LWR_CNT, (unsigned char) count);
+ snd_ad1848_out(chip, AD1848_DATA_UPR_CNT, (unsigned char) (count >> 8));
+ spin_unlock_irqrestore(&chip->reg_lock, flags);
+ return 0;
+}
+
+static irqreturn_t snd_ad1848_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+ ad1848_t *chip = dev_id;
+
+ if ((chip->mode & AD1848_MODE_PLAY) && chip->playback_substream &&
+ (chip->mode & AD1848_MODE_RUNNING))
+ snd_pcm_period_elapsed(chip->playback_substream);
+ if ((chip->mode & AD1848_MODE_CAPTURE) && chip->capture_substream &&
+ (chip->mode & AD1848_MODE_RUNNING))
+ snd_pcm_period_elapsed(chip->capture_substream);
+ outb(0, AD1848P(chip, STATUS)); /* clear global interrupt bit */
+ return IRQ_HANDLED;
+}
+
+static snd_pcm_uframes_t snd_ad1848_playback_pointer(snd_pcm_substream_t * substream)
+{
+ ad1848_t *chip = snd_pcm_substream_chip(substream);
+ size_t ptr;
+
+ if (!(chip->image[AD1848_IFACE_CTRL] & AD1848_PLAYBACK_ENABLE))
+ return 0;
+ ptr = snd_dma_pointer(chip->dma, chip->dma_size);
+ return bytes_to_frames(substream->runtime, ptr);
+}
+
+static snd_pcm_uframes_t snd_ad1848_capture_pointer(snd_pcm_substream_t * substream)
+{
+ ad1848_t *chip = snd_pcm_substream_chip(substream);
+ size_t ptr;
+
+ if (!(chip->image[AD1848_IFACE_CTRL] & AD1848_CAPTURE_ENABLE))
+ return 0;
+ ptr = snd_dma_pointer(chip->dma, chip->dma_size);
+ return bytes_to_frames(substream->runtime, ptr);
+}
+
+/*
+
+ */
+
+static void snd_ad1848_thinkpad_twiddle(ad1848_t *chip, int on) {
+
+ int tmp;
+
+ if (!chip->thinkpad_flag) return;
+
+ outb(0x1c, AD1848_THINKPAD_CTL_PORT1);
+ tmp = inb(AD1848_THINKPAD_CTL_PORT2);
+
+ if (on)
+ /* turn it on */
+ tmp |= AD1848_THINKPAD_CS4248_ENABLE_BIT;
+ else
+ /* turn it off */
+ tmp &= ~AD1848_THINKPAD_CS4248_ENABLE_BIT;
+
+ outb(tmp, AD1848_THINKPAD_CTL_PORT2);
+
+}
+
+#ifdef CONFIG_PM
+static int snd_ad1848_suspend(snd_card_t *card, pm_message_t state)
+{
+ ad1848_t *chip = card->pm_private_data;
+
+ snd_pcm_suspend_all(chip->pcm);
+ /* FIXME: save registers? */
+
+ if (chip->thinkpad_flag)
+ snd_ad1848_thinkpad_twiddle(chip, 0);
+
+ return 0;
+}
+
+static int snd_ad1848_resume(snd_card_t *card)
+{
+ ad1848_t *chip = card->pm_private_data;
+
+ if (chip->thinkpad_flag)
+ snd_ad1848_thinkpad_twiddle(chip, 1);
+
+ /* FIXME: restore registers? */
+
+ return 0;
+}
+#endif /* CONFIG_PM */
+
+static int snd_ad1848_probe(ad1848_t * chip)
+{
+ unsigned long flags;
+ int i, id, rev, ad1847;
+ unsigned char *ptr;
+
+#if 0
+ snd_ad1848_debug(chip);
+#endif
+ id = ad1847 = 0;
+ for (i = 0; i < 1000; i++) {
+ mb();
+ if (inb(AD1848P(chip, REGSEL)) & AD1848_INIT)
+ udelay(500);
+ else {
+ spin_lock_irqsave(&chip->reg_lock, flags);
+ snd_ad1848_out(chip, AD1848_MISC_INFO, 0x00);
+ snd_ad1848_out(chip, AD1848_LEFT_INPUT, 0xaa);
+ snd_ad1848_out(chip, AD1848_RIGHT_INPUT, 0x45);
+ rev = snd_ad1848_in(chip, AD1848_RIGHT_INPUT);
+ if (rev == 0x65) {
+ spin_unlock_irqrestore(&chip->reg_lock, flags);
+ id = 1;
+ ad1847 = 1;
+ break;
+ }
+ if (snd_ad1848_in(chip, AD1848_LEFT_INPUT) == 0xaa && rev == 0x45) {
+ spin_unlock_irqrestore(&chip->reg_lock, flags);
+ id = 1;
+ break;
+ }
+ spin_unlock_irqrestore(&chip->reg_lock, flags);
+ }
+ }
+ if (id != 1)
+ return -ENODEV; /* no valid device found */
+ if (chip->hardware == AD1848_HW_DETECT) {
+ if (ad1847) {
+ chip->hardware = AD1848_HW_AD1847;
+ } else {
+ chip->hardware = AD1848_HW_AD1848;
+ rev = snd_ad1848_in(chip, AD1848_MISC_INFO);
+ if (rev & 0x80) {
+ chip->hardware = AD1848_HW_CS4248;
+ } else if ((rev & 0x0f) == 0x0a) {
+ snd_ad1848_out(chip, AD1848_MISC_INFO, 0x40);
+ for (i = 0; i < 16; ++i) {
+ if (snd_ad1848_in(chip, i) != snd_ad1848_in(chip, i + 16)) {
+ chip->hardware = AD1848_HW_CMI8330;
+ break;
+ }
+ }
+ snd_ad1848_out(chip, AD1848_MISC_INFO, 0x00);
+ }
+ }
+ }
+ spin_lock_irqsave(&chip->reg_lock, flags);
+ inb(AD1848P(chip, STATUS)); /* clear any pendings IRQ */
+ outb(0, AD1848P(chip, STATUS));
+ mb();
+ spin_unlock_irqrestore(&chip->reg_lock, flags);
+
+ chip->image[AD1848_MISC_INFO] = 0x00;
+ chip->image[AD1848_IFACE_CTRL] =
+ (chip->image[AD1848_IFACE_CTRL] & ~AD1848_SINGLE_DMA) | AD1848_SINGLE_DMA;
+ ptr = (unsigned char *) &chip->image;
+ snd_ad1848_mce_down(chip);
+ spin_lock_irqsave(&chip->reg_lock, flags);
+ for (i = 0; i < 16; i++) /* ok.. fill all AD1848 registers */
+ snd_ad1848_out(chip, i, *ptr++);
+ spin_unlock_irqrestore(&chip->reg_lock, flags);
+ snd_ad1848_mce_up(chip);
+ snd_ad1848_mce_down(chip);
+ return 0; /* all things are ok.. */
+}
+
+/*
+
+ */
+
+static snd_pcm_hardware_t snd_ad1848_playback =
+{
+ .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_MMAP_VALID),
+ .formats = (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW |
+ SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE),
+ .rates = SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
+ .rate_min = 5510,
+ .rate_max = 48000,
+ .channels_min = 1,
+ .channels_max = 2,
+ .buffer_bytes_max = (128*1024),
+ .period_bytes_min = 64,
+ .period_bytes_max = (128*1024),
+ .periods_min = 1,
+ .periods_max = 1024,
+ .fifo_size = 0,
+};
+
+static snd_pcm_hardware_t snd_ad1848_capture =
+{
+ .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_MMAP_VALID),
+ .formats = (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW |
+ SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE),
+ .rates = SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
+ .rate_min = 5510,
+ .rate_max = 48000,
+ .channels_min = 1,
+ .channels_max = 2,
+ .buffer_bytes_max = (128*1024),
+ .period_bytes_min = 64,
+ .period_bytes_max = (128*1024),
+ .periods_min = 1,
+ .periods_max = 1024,
+ .fifo_size = 0,
+};
+
+/*
+
+ */
+
+static int snd_ad1848_playback_open(snd_pcm_substream_t * substream)
+{
+ ad1848_t *chip = snd_pcm_substream_chip(substream);
+ snd_pcm_runtime_t *runtime = substream->runtime;
+ int err;
+
+ if ((err = snd_ad1848_open(chip, AD1848_MODE_PLAY)) < 0)
+ return err;
+ chip->playback_substream = substream;
+ runtime->hw = snd_ad1848_playback;
+ snd_pcm_limit_isa_dma_size(chip->dma, &runtime->hw.buffer_bytes_max);
+ snd_pcm_limit_isa_dma_size(chip->dma, &runtime->hw.period_bytes_max);
+ snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &hw_constraints_rates);
+ return 0;
+}
+
+static int snd_ad1848_capture_open(snd_pcm_substream_t * substream)
+{
+ ad1848_t *chip = snd_pcm_substream_chip(substream);
+ snd_pcm_runtime_t *runtime = substream->runtime;
+ int err;
+
+ if ((err = snd_ad1848_open(chip, AD1848_MODE_CAPTURE)) < 0)
+ return err;
+ chip->capture_substream = substream;
+ runtime->hw = snd_ad1848_capture;
+ snd_pcm_limit_isa_dma_size(chip->dma, &runtime->hw.buffer_bytes_max);
+ snd_pcm_limit_isa_dma_size(chip->dma, &runtime->hw.period_bytes_max);
+ snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &hw_constraints_rates);
+ return 0;
+}
+
+static int snd_ad1848_playback_close(snd_pcm_substream_t * substream)
+{
+ ad1848_t *chip = snd_pcm_substream_chip(substream);
+
+ chip->mode &= ~AD1848_MODE_PLAY;
+ chip->playback_substream = NULL;
+ snd_ad1848_close(chip);
+ return 0;
+}
+
+static int snd_ad1848_capture_close(snd_pcm_substream_t * substream)
+{
+ ad1848_t *chip = snd_pcm_substream_chip(substream);
+
+ chip->mode &= ~AD1848_MODE_CAPTURE;
+ chip->capture_substream = NULL;
+ snd_ad1848_close(chip);
+ return 0;
+}
+
+static int snd_ad1848_free(ad1848_t *chip)
+{
+ if (chip->res_port) {
+ release_resource(chip->res_port);
+ kfree_nocheck(chip->res_port);
+ }
+ if (chip->irq >= 0)
+ free_irq(chip->irq, (void *) chip);
+ if (chip->dma >= 0) {
+ snd_dma_disable(chip->dma);
+ free_dma(chip->dma);
+ }
+ kfree(chip);
+ return 0;
+}
+
+static int snd_ad1848_dev_free(snd_device_t *device)
+{
+ ad1848_t *chip = device->device_data;
+ return snd_ad1848_free(chip);
+}
+
+static const char *snd_ad1848_chip_id(ad1848_t *chip)
+{
+ switch (chip->hardware) {
+ case AD1848_HW_AD1847: return "AD1847";
+ case AD1848_HW_AD1848: return "AD1848";
+ case AD1848_HW_CS4248: return "CS4248";
+ case AD1848_HW_CMI8330: return "CMI8330/C3D";
+ default: return "???";
+ }
+}
+
+int snd_ad1848_create(snd_card_t * card,
+ unsigned long port,
+ int irq, int dma,
+ unsigned short hardware,
+ ad1848_t ** rchip)
+{
+ static snd_device_ops_t ops = {
+ .dev_free = snd_ad1848_dev_free,
+ };
+ ad1848_t *chip;
+ int err;
+
+ *rchip = NULL;
+ chip = kcalloc(1, sizeof(*chip), GFP_KERNEL);
+ if (chip == NULL)
+ return -ENOMEM;
+ spin_lock_init(&chip->reg_lock);
+ init_MUTEX(&chip->open_mutex);
+ chip->card = card;
+ chip->port = port;
+ chip->irq = -1;
+ chip->dma = -1;
+ chip->hardware = hardware;
+ memcpy(&chip->image, &snd_ad1848_original_image, sizeof(snd_ad1848_original_image));
+
+ if ((chip->res_port = request_region(port, 4, "AD1848")) == NULL) {
+ snd_printk(KERN_ERR "ad1848: can't grab port 0x%lx\n", port);
+ snd_ad1848_free(chip);
+ return -EBUSY;
+ }
+ if (request_irq(irq, snd_ad1848_interrupt, SA_INTERRUPT, "AD1848", (void *) chip)) {
+ snd_printk(KERN_ERR "ad1848: can't grab IRQ %d\n", irq);
+ snd_ad1848_free(chip);
+ return -EBUSY;
+ }
+ chip->irq = irq;
+ if (request_dma(dma, "AD1848")) {
+ snd_printk(KERN_ERR "ad1848: can't grab DMA %d\n", dma);
+ snd_ad1848_free(chip);
+ return -EBUSY;
+ }
+ chip->dma = dma;
+
+ if (hardware == AD1848_HW_THINKPAD) {
+ chip->thinkpad_flag = 1;
+ chip->hardware = AD1848_HW_DETECT; /* reset */
+ snd_ad1848_thinkpad_twiddle(chip, 1);
+ snd_card_set_isa_pm_callback(card, snd_ad1848_suspend, snd_ad1848_resume, chip);
+ }
+
+ if (snd_ad1848_probe(chip) < 0) {
+ snd_ad1848_free(chip);
+ return -ENODEV;
+ }
+
+ /* Register device */
+ if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
+ snd_ad1848_free(chip);
+ return err;
+ }
+
+ *rchip = chip;
+ return 0;
+}
+
+static snd_pcm_ops_t snd_ad1848_playback_ops = {
+ .open = snd_ad1848_playback_open,
+ .close = snd_ad1848_playback_close,
+ .ioctl = snd_ad1848_ioctl,
+ .hw_params = snd_ad1848_playback_hw_params,
+ .hw_free = snd_ad1848_playback_hw_free,
+ .prepare = snd_ad1848_playback_prepare,
+ .trigger = snd_ad1848_playback_trigger,
+ .pointer = snd_ad1848_playback_pointer,
+};
+
+static snd_pcm_ops_t snd_ad1848_capture_ops = {
+ .open = snd_ad1848_capture_open,
+ .close = snd_ad1848_capture_close,
+ .ioctl = snd_ad1848_ioctl,
+ .hw_params = snd_ad1848_capture_hw_params,
+ .hw_free = snd_ad1848_capture_hw_free,
+ .prepare = snd_ad1848_capture_prepare,
+ .trigger = snd_ad1848_capture_trigger,
+ .pointer = snd_ad1848_capture_pointer,
+};
+
+static void snd_ad1848_pcm_free(snd_pcm_t *pcm)
+{
+ ad1848_t *chip = pcm->private_data;
+ chip->pcm = NULL;
+ snd_pcm_lib_preallocate_free_for_all(pcm);
+}
+
+int snd_ad1848_pcm(ad1848_t *chip, int device, snd_pcm_t **rpcm)
+{
+ snd_pcm_t *pcm;
+ int err;
+
+ if ((err = snd_pcm_new(chip->card, "AD1848", device, 1, 1, &pcm)) < 0)
+ return err;
+
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ad1848_playback_ops);
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ad1848_capture_ops);
+
+ pcm->private_free = snd_ad1848_pcm_free;
+ pcm->private_data = chip;
+ pcm->info_flags = SNDRV_PCM_INFO_HALF_DUPLEX;
+ strcpy(pcm->name, snd_ad1848_chip_id(chip));
+
+ snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
+ snd_dma_isa_data(),
+ 64*1024, chip->dma > 3 ? 128*1024 : 64*1024);
+
+ chip->pcm = pcm;
+ if (rpcm)
+ *rpcm = pcm;
+ return 0;
+}
+
+const snd_pcm_ops_t *snd_ad1848_get_pcm_ops(int direction)
+{
+ return direction == SNDRV_PCM_STREAM_PLAYBACK ?
+ &snd_ad1848_playback_ops : &snd_ad1848_capture_ops;
+}
+
+/*
+ * MIXER part
+ */
+
+static int snd_ad1848_info_mux(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
+{
+ static char *texts[4] = {
+ "Line", "Aux", "Mic", "Mix"
+ };
+
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
+ uinfo->count = 2;
+ uinfo->value.enumerated.items = 4;
+ if (uinfo->value.enumerated.item > 3)
+ uinfo->value.enumerated.item = 3;
+ strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
+ return 0;
+}
+
+static int snd_ad1848_get_mux(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+ ad1848_t *chip = snd_kcontrol_chip(kcontrol);
+ unsigned long flags;
+
+ spin_lock_irqsave(&chip->reg_lock, flags);
+ ucontrol->value.enumerated.item[0] = (chip->image[AD1848_LEFT_INPUT] & AD1848_MIXS_ALL) >> 6;
+ ucontrol->value.enumerated.item[1] = (chip->image[AD1848_RIGHT_INPUT] & AD1848_MIXS_ALL) >> 6;
+ spin_unlock_irqrestore(&chip->reg_lock, flags);
+ return 0;
+}
+
+static int snd_ad1848_put_mux(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+ ad1848_t *chip = snd_kcontrol_chip(kcontrol);
+ unsigned long flags;
+ unsigned short left, right;
+ int change;
+
+ if (ucontrol->value.enumerated.item[0] > 3 ||
+ ucontrol->value.enumerated.item[1] > 3)
+ return -EINVAL;
+ left = ucontrol->value.enumerated.item[0] << 6;
+ right = ucontrol->value.enumerated.item[1] << 6;
+ spin_lock_irqsave(&chip->reg_lock, flags);
+ left = (chip->image[AD1848_LEFT_INPUT] & ~AD1848_MIXS_ALL) | left;
+ right = (chip->image[AD1848_RIGHT_INPUT] & ~AD1848_MIXS_ALL) | right;
+ change = left != chip->image[AD1848_LEFT_INPUT] ||
+ right != chip->image[AD1848_RIGHT_INPUT];
+ snd_ad1848_out(chip, AD1848_LEFT_INPUT, left);
+ snd_ad1848_out(chip, AD1848_RIGHT_INPUT, right);
+ spin_unlock_irqrestore(&chip->reg_lock, flags);
+ return change;
+}
+
+static int snd_ad1848_info_single(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
+{
+ int mask = (kcontrol->private_value >> 16) & 0xff;
+
+ uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
+ uinfo->count = 1;
+ uinfo->value.integer.min = 0;
+ uinfo->value.integer.max = mask;
+ return 0;
+}
+
+static int snd_ad1848_get_single(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+ ad1848_t *chip = snd_kcontrol_chip(kcontrol);
+ unsigned long flags;
+ int reg = kcontrol->private_value & 0xff;
+ int shift = (kcontrol->private_value >> 8) & 0xff;
+ int mask = (kcontrol->private_value >> 16) & 0xff;
+ int invert = (kcontrol->private_value >> 24) & 0xff;
+
+ spin_lock_irqsave(&chip->reg_lock, flags);
+ ucontrol->value.integer.value[0] = (chip->image[reg] >> shift) & mask;
+ spin_unlock_irqrestore(&chip->reg_lock, flags);
+ if (invert)
+ ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
+ return 0;
+}
+
+static int snd_ad1848_put_single(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+ ad1848_t *chip = snd_kcontrol_chip(kcontrol);
+ unsigned long flags;
+ int reg = kcontrol->private_value & 0xff;
+ int shift = (kcontrol->private_value >> 8) & 0xff;
+ int mask = (kcontrol->private_value >> 16) & 0xff;
+ int invert = (kcontrol->private_value >> 24) & 0xff;
+ int change;
+ unsigned short val;
+
+ val = (ucontrol->value.integer.value[0] & mask);
+ if (invert)
+ val = mask - val;
+ val <<= shift;
+ spin_lock_irqsave(&chip->reg_lock, flags);
+ val = (chip->image[reg] & ~(mask << shift)) | val;
+ change = val != chip->image[reg];
+ snd_ad1848_out(chip, reg, val);
+ spin_unlock_irqrestore(&chip->reg_lock, flags);
+ return change;
+}
+
+static int snd_ad1848_info_double(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
+{
+ int mask = (kcontrol->private_value >> 24) & 0xff;
+
+ uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
+ uinfo->count = 2;
+ uinfo->value.integer.min = 0;
+ uinfo->value.integer.max = mask;
+ return 0;
+}
+
+static int snd_ad1848_get_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+ ad1848_t *chip = snd_kcontrol_chip(kcontrol);
+ unsigned long flags;
+ int left_reg = kcontrol->private_value & 0xff;
+ int right_reg = (kcontrol->private_value >> 8) & 0xff;
+ int shift_left = (kcontrol->private_value >> 16) & 0x07;
+ int shift_right = (kcontrol->private_value >> 19) & 0x07;
+ int mask = (kcontrol->private_value >> 24) & 0xff;
+ int invert = (kcontrol->private_value >> 22) & 1;
+
+ spin_lock_irqsave(&chip->reg_lock, flags);
+ ucontrol->value.integer.value[0] = (chip->image[left_reg] >> shift_left) & mask;
+ ucontrol->value.integer.value[1] = (chip->image[right_reg] >> shift_right) & mask;
+ spin_unlock_irqrestore(&chip->reg_lock, flags);
+ if (invert) {
+ ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
+ ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
+ }
+ return 0;
+}
+
+static int snd_ad1848_put_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
+{
+ ad1848_t *chip = snd_kcontrol_chip(kcontrol);
+ unsigned long flags;
+ int left_reg = kcontrol->private_value & 0xff;
+ int right_reg = (kcontrol->private_value >> 8) & 0xff;
+ int shift_left = (kcontrol->private_value >> 16) & 0x07;
+ int shift_right = (kcontrol->private_value >> 19) & 0x07;
+ int mask = (kcontrol->private_value >> 24) & 0xff;
+ int invert = (kcontrol->private_value >> 22) & 1;
+ int change;
+ unsigned short val1, val2;
+
+ val1 = ucontrol->value.integer.value[0] & mask;
+ val2 = ucontrol->value.integer.value[1] & mask;
+ if (invert) {
+ val1 = mask - val1;
+ val2 = mask - val2;
+ }
+ val1 <<= shift_left;
+ val2 <<= shift_right;
+ spin_lock_irqsave(&chip->reg_lock, flags);
+ if (left_reg != right_reg) {
+ val1 = (chip->image[left_reg] & ~(mask << shift_left)) | val1;
+ val2 = (chip->image[right_reg] & ~(mask << shift_right)) | val2;
+ change = val1 != chip->image[left_reg] || val2 != chip->image[right_reg];
+ snd_ad1848_out(chip, left_reg, val1);
+ snd_ad1848_out(chip, right_reg, val2);
+ } else {
+ val1 = (chip->image[left_reg] & ~((mask << shift_left) | (mask << shift_right))) | val1 | val2;
+ change = val1 != chip->image[left_reg];
+ snd_ad1848_out(chip, left_reg, val1);
+ }
+ spin_unlock_irqrestore(&chip->reg_lock, flags);
+ return change;
+}
+
+/*
+ */
+int snd_ad1848_add_ctl(ad1848_t *chip, const char *name, int index, int type, unsigned long value)
+{
+ static snd_kcontrol_new_t newctls[] = {
+ [AD1848_MIX_SINGLE] = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .info = snd_ad1848_info_single,
+ .get = snd_ad1848_get_single,
+ .put = snd_ad1848_put_single,
+ },
+ [AD1848_MIX_DOUBLE] = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .info = snd_ad1848_info_double,
+ .get = snd_ad1848_get_double,
+ .put = snd_ad1848_put_double,
+ },
+ [AD1848_MIX_CAPTURE] = {
+ .info = snd_ad1848_info_mux,
+ .get = snd_ad1848_get_mux,
+ .put = snd_ad1848_put_mux,
+ },
+ };
+ snd_kcontrol_t *ctl;
+ int err;
+
+ ctl = snd_ctl_new1(&newctls[type], chip);
+ if (! ctl)
+ return -ENOMEM;
+ strlcpy(ctl->id.name, name, sizeof(ctl->id.name));
+ ctl->id.index = index;
+ ctl->private_value = value;
+ if ((err = snd_ctl_add(chip->card, ctl)) < 0) {
+ snd_ctl_free_one(ctl);
+ return err;
+ }
+ return 0;
+}
+
+
+static struct ad1848_mix_elem snd_ad1848_controls[] = {
+AD1848_DOUBLE("PCM Playback Switch", 0, AD1848_LEFT_OUTPUT, AD1848_RIGHT_OUTPUT, 7, 7, 1, 1),
+AD1848_DOUBLE("PCM Playback Volume", 0, AD1848_LEFT_OUTPUT, AD1848_RIGHT_OUTPUT, 0, 0, 63, 1),
+AD1848_DOUBLE("Aux Playback Switch", 0, AD1848_AUX1_LEFT_INPUT, AD1848_AUX1_RIGHT_INPUT, 7, 7, 1, 1),
+AD1848_DOUBLE("Aux Playback Volume", 0, AD1848_AUX1_LEFT_INPUT, AD1848_AUX1_RIGHT_INPUT, 0, 0, 31, 1),
+AD1848_DOUBLE("Aux Playback Switch", 1, AD1848_AUX2_LEFT_INPUT, AD1848_AUX2_RIGHT_INPUT, 7, 7, 1, 1),
+AD1848_DOUBLE("Aux Playback Volume", 1, AD1848_AUX2_LEFT_INPUT, AD1848_AUX2_RIGHT_INPUT, 0, 0, 31, 1),
+AD1848_DOUBLE("Capture Volume", 0, AD1848_LEFT_INPUT, AD1848_RIGHT_INPUT, 0, 0, 15, 0),
+{
+ .name = "Capture Source",
+ .type = AD1848_MIX_CAPTURE,
+},
+AD1848_SINGLE("Loopback Capture Switch", 0, AD1848_LOOPBACK, 0, 1, 0),
+AD1848_SINGLE("Loopback Capture Volume", 0, AD1848_LOOPBACK, 1, 63, 0)
+};
+
+int snd_ad1848_mixer(ad1848_t *chip)
+{
+ snd_card_t *card;
+ snd_pcm_t *pcm;
+ unsigned int idx;
+ int err;
+
+ snd_assert(chip != NULL && chip->pcm != NULL, return -EINVAL);
+
+ pcm = chip->pcm;
+ card = chip->card;
+
+ strcpy(card->mixername, pcm->name);
+
+ for (idx = 0; idx < ARRAY_SIZE(snd_ad1848_controls); idx++)
+ if ((err = snd_ad1848_add_ctl_elem(chip, &snd_ad1848_controls[idx])) < 0)
+ return err;
+
+ return 0;
+}
+
+EXPORT_SYMBOL(snd_ad1848_out);
+EXPORT_SYMBOL(snd_ad1848_create);
+EXPORT_SYMBOL(snd_ad1848_pcm);
+EXPORT_SYMBOL(snd_ad1848_get_pcm_ops);
+EXPORT_SYMBOL(snd_ad1848_mixer);
+EXPORT_SYMBOL(snd_ad1848_add_ctl);
+
+/*
+ * INIT part
+ */
+
+static int __init alsa_ad1848_init(void)
+{
+ return 0;
+}
+
+static void __exit alsa_ad1848_exit(void)
+{
+}
+
+module_init(alsa_ad1848_init)
+module_exit(alsa_ad1848_exit)