-/*
- * Copyright (c) by Jaroslav Kysela <perex@perex.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/slab.h>
-#include <linux/ioport.h>
-#include <sound/core.h>
-#include <sound/ad1848.h>
-#include <sound/control.h>
-#include <sound/tlv.h>
-#include <sound/pcm_params.h>
-
-#include <asm/io.h>
-#include <asm/dma.h>
-
-MODULE_AUTHOR("Jaroslav Kysela <perex@perex.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 struct snd_pcm_hw_constraint_list hw_constraints_rates = {
- .count = ARRAY_SIZE(rates),
- .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
- */
-
-static void snd_ad1848_wait(struct snd_ad1848 *chip)
-{
- int timeout;
-
- for (timeout = 250; timeout > 0; timeout--) {
- if ((inb(AD1848P(chip, REGSEL)) & AD1848_INIT) == 0)
- break;
- udelay(100);
- }
-}
-
-void snd_ad1848_out(struct snd_ad1848 *chip,
- unsigned char reg,
- unsigned char value)
-{
- snd_ad1848_wait(chip);
-#ifdef CONFIG_SND_DEBUG
- if (inb(AD1848P(chip, REGSEL)) & AD1848_INIT)
- snd_printk(KERN_WARNING "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();
- snd_printdd("codec out - reg 0x%x = 0x%x\n",
- chip->mce_bit | reg, value);
-}
-
-EXPORT_SYMBOL(snd_ad1848_out);
-
-static void snd_ad1848_dout(struct snd_ad1848 *chip,
- unsigned char reg, unsigned char value)
-{
- snd_ad1848_wait(chip);
- outb(chip->mce_bit | reg, AD1848P(chip, REGSEL));
- outb(value, AD1848P(chip, REG));
- mb();
-}
-
-static unsigned char snd_ad1848_in(struct snd_ad1848 *chip, unsigned char reg)
-{
- snd_ad1848_wait(chip);
-#ifdef CONFIG_SND_DEBUG
- if (inb(AD1848P(chip, REGSEL)) & AD1848_INIT)
- snd_printk(KERN_WARNING "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(struct snd_ad1848 *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(struct snd_ad1848 *chip)
-{
- unsigned long flags;
- int timeout;
-
- snd_ad1848_wait(chip);
-#ifdef CONFIG_SND_DEBUG
- if (inb(AD1848P(chip, REGSEL)) & AD1848_INIT)
- snd_printk(KERN_WARNING "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(KERN_WARNING "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(struct snd_ad1848 *chip)
-{
- unsigned long flags, timeout;
- int reg;
-
- 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);
-
- snd_printdd("(1) timeout = %d\n", timeout);
-
-#ifdef CONFIG_SND_DEBUG
- if (inb(AD1848P(chip, REGSEL)) & AD1848_INIT)
- snd_printk(KERN_WARNING "mce_down [0x%lx] - auto calibration time out (0)\n", AD1848P(chip, REGSEL));
-#endif
-
- chip->mce_bit &= ~AD1848_MCE;
- reg = inb(AD1848P(chip, REGSEL));
- outb(chip->mce_bit | (reg & 0x1f), AD1848P(chip, REGSEL));
- if (reg == 0x80)
- snd_printk(KERN_WARNING "mce_down [0x%lx]: serious init problem - codec still busy\n", chip->port);
- if ((reg & AD1848_MCE) == 0) {
- spin_unlock_irqrestore(&chip->reg_lock, flags);
- return;
- }
-
- /*
- * Wait for auto-calibration (AC) process to finish, i.e. ACI to go low.
- * It may take up to 5 sample periods (at most 907 us @ 5.5125 kHz) for
- * the process to _start_, so it is important to wait at least that long
- * before checking. Otherwise we might think AC has finished when it
- * has in fact not begun. It could take 128 (no AC) or 384 (AC) cycles
- * for ACI to drop. This gives a wait of at most 70 ms with a more
- * typical value of 3-9 ms.
- */
- timeout = jiffies + msecs_to_jiffies(250);
- do {
- spin_unlock_irqrestore(&chip->reg_lock, flags);
- msleep(1);
- spin_lock_irqsave(&chip->reg_lock, flags);
- reg = snd_ad1848_in(chip, AD1848_TEST_INIT) &
- AD1848_CALIB_IN_PROGRESS;
- } while (reg && time_before(jiffies, timeout));
- spin_unlock_irqrestore(&chip->reg_lock, flags);
- if (reg)
- snd_printk(KERN_ERR
- "mce_down - auto calibration time out (2)\n");
-
- snd_printdd("(4) jiffies = %lu\n", jiffies);
- snd_printd("mce_down - exit = 0x%x\n", inb(AD1848P(chip, REGSEL)));
-}
-
-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(struct snd_ad1848 *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 < ARRAY_SIZE(rates); i++)
- if (rate == rates[i])
- return freq_bits[i];
- snd_BUG();
- return freq_bits[ARRAY_SIZE(rates) - 1];
-}
-
-static int snd_ad1848_ioctl(struct snd_pcm_substream *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(struct snd_ad1848 *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(struct snd_ad1848 *chip, struct snd_pcm_hw_params *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(struct snd_ad1848 *chip, unsigned int mode)
-{
- unsigned long flags;
-
- if (chip->mode & AD1848_MODE_OPEN)
- 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;
-
- return 0;
-}
-
-static void snd_ad1848_close(struct snd_ad1848 *chip)
-{
- unsigned long flags;
-
- if (!chip->mode)
- 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;
-}
-
-/*
- * ok.. exported functions..
- */
-
-static int snd_ad1848_playback_trigger(struct snd_pcm_substream *substream,
- int cmd)
-{
- struct snd_ad1848 *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(struct snd_pcm_substream *substream,
- int cmd)
-{
- struct snd_ad1848 *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(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *hw_params)
-{
- struct snd_ad1848 *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(struct snd_pcm_substream *substream)
-{
- return snd_pcm_lib_free_pages(substream);
-}
-
-static int snd_ad1848_playback_prepare(struct snd_pcm_substream *substream)
-{
- struct snd_ad1848 *chip = snd_pcm_substream_chip(substream);
- struct snd_pcm_runtime *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(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *hw_params)
-{
- struct snd_ad1848 *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(struct snd_pcm_substream *substream)
-{
- return snd_pcm_lib_free_pages(substream);
-}
-
-static int snd_ad1848_capture_prepare(struct snd_pcm_substream *substream)
-{
- struct snd_ad1848 *chip = snd_pcm_substream_chip(substream);
- struct snd_pcm_runtime *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 snd_ad1848 *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(struct snd_pcm_substream *substream)
-{
- struct snd_ad1848 *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(struct snd_pcm_substream *substream)
-{
- struct snd_ad1848 *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(struct snd_ad1848 *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 void snd_ad1848_suspend(struct snd_ad1848 *chip)
-{
- snd_pcm_suspend_all(chip->pcm);
- if (chip->thinkpad_flag)
- snd_ad1848_thinkpad_twiddle(chip, 0);
-}
-
-static void snd_ad1848_resume(struct snd_ad1848 *chip)
-{
- int i;
-
- if (chip->thinkpad_flag)
- snd_ad1848_thinkpad_twiddle(chip, 1);
-
- /* clear any pendings IRQ */
- inb(AD1848P(chip, STATUS));
- outb(0, AD1848P(chip, STATUS));
- mb();
-
- snd_ad1848_mce_down(chip);
- for (i = 0; i < 16; i++)
- snd_ad1848_out(chip, i, chip->image[i]);
- snd_ad1848_mce_up(chip);
- snd_ad1848_mce_down(chip);
-}
-#endif /* CONFIG_PM */
-
-static int snd_ad1848_probe(struct snd_ad1848 * 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 struct snd_pcm_hardware 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 struct snd_pcm_hardware 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(struct snd_pcm_substream *substream)
-{
- struct snd_ad1848 *chip = snd_pcm_substream_chip(substream);
- struct snd_pcm_runtime *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(struct snd_pcm_substream *substream)
-{
- struct snd_ad1848 *chip = snd_pcm_substream_chip(substream);
- struct snd_pcm_runtime *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(struct snd_pcm_substream *substream)
-{
- struct snd_ad1848 *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(struct snd_pcm_substream *substream)
-{
- struct snd_ad1848 *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(struct snd_ad1848 *chip)
-{
- release_and_free_resource(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(struct snd_device *device)
-{
- struct snd_ad1848 *chip = device->device_data;
- return snd_ad1848_free(chip);
-}
-
-static const char *snd_ad1848_chip_id(struct snd_ad1848 *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(struct snd_card *card,
- unsigned long port,
- int irq, int dma,
- unsigned short hardware,
- struct snd_ad1848 ** rchip)
-{
- static struct snd_device_ops ops = {
- .dev_free = snd_ad1848_dev_free,
- };
- struct snd_ad1848 *chip;
- int err;
-
- *rchip = NULL;
- chip = kzalloc(sizeof(*chip), GFP_KERNEL);
- if (chip == NULL)
- return -ENOMEM;
- spin_lock_init(&chip->reg_lock);
- 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, IRQF_DISABLED, "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);
- }
-
- 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;
- }
-
-#ifdef CONFIG_PM
- chip->suspend = snd_ad1848_suspend;
- chip->resume = snd_ad1848_resume;
-#endif
-
- *rchip = chip;
- return 0;
-}
-
-EXPORT_SYMBOL(snd_ad1848_create);
-
-static struct snd_pcm_ops 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 struct snd_pcm_ops 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,
-};
-
-int snd_ad1848_pcm(struct snd_ad1848 *chip, int device, struct snd_pcm **rpcm)
-{
- struct snd_pcm *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_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;
-}
-
-EXPORT_SYMBOL(snd_ad1848_pcm);
-
-const struct snd_pcm_ops *snd_ad1848_get_pcm_ops(int direction)
-{
- return direction == SNDRV_PCM_STREAM_PLAYBACK ?
- &snd_ad1848_playback_ops : &snd_ad1848_capture_ops;
-}
-
-EXPORT_SYMBOL(snd_ad1848_get_pcm_ops);
-
-/*
- * MIXER part
- */
-
-static int snd_ad1848_info_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *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(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
-{
- struct snd_ad1848 *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(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
-{
- struct snd_ad1848 *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(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *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(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
-{
- struct snd_ad1848 *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(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
-{
- struct snd_ad1848 *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(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *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(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
-{
- struct snd_ad1848 *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(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
-{
- struct snd_ad1848 *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_elem(struct snd_ad1848 *chip,
- const struct ad1848_mix_elem *c)
-{
- static struct snd_kcontrol_new 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] = {
- .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
- .info = snd_ad1848_info_mux,
- .get = snd_ad1848_get_mux,
- .put = snd_ad1848_put_mux,
- },
- };
- struct snd_kcontrol *ctl;
- int err;
-
- ctl = snd_ctl_new1(&newctls[c->type], chip);
- if (! ctl)
- return -ENOMEM;
- strlcpy(ctl->id.name, c->name, sizeof(ctl->id.name));
- ctl->id.index = c->index;
- ctl->private_value = c->private_value;
- if (c->tlv) {
- ctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_TLV_READ;
- ctl->tlv.p = c->tlv;
- }
- if ((err = snd_ctl_add(chip->card, ctl)) < 0)
- return err;
- return 0;
-}
-
-EXPORT_SYMBOL(snd_ad1848_add_ctl_elem);
-
-static const DECLARE_TLV_DB_SCALE(db_scale_6bit, -9450, 150, 0);
-static const DECLARE_TLV_DB_SCALE(db_scale_5bit_12db_max, -3450, 150, 0);
-static const DECLARE_TLV_DB_SCALE(db_scale_rec_gain, 0, 150, 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_TLV("PCM Playback Volume", 0, AD1848_LEFT_OUTPUT, AD1848_RIGHT_OUTPUT, 0, 0, 63, 1,
- db_scale_6bit),
-AD1848_DOUBLE("Aux Playback Switch", 0, AD1848_AUX1_LEFT_INPUT, AD1848_AUX1_RIGHT_INPUT, 7, 7, 1, 1),
-AD1848_DOUBLE_TLV("Aux Playback Volume", 0, AD1848_AUX1_LEFT_INPUT, AD1848_AUX1_RIGHT_INPUT, 0, 0, 31, 1,
- db_scale_5bit_12db_max),
-AD1848_DOUBLE("Aux Playback Switch", 1, AD1848_AUX2_LEFT_INPUT, AD1848_AUX2_RIGHT_INPUT, 7, 7, 1, 1),
-AD1848_DOUBLE_TLV("Aux Playback Volume", 1, AD1848_AUX2_LEFT_INPUT, AD1848_AUX2_RIGHT_INPUT, 0, 0, 31, 1,
- db_scale_5bit_12db_max),
-AD1848_DOUBLE_TLV("Capture Volume", 0, AD1848_LEFT_INPUT, AD1848_RIGHT_INPUT, 0, 0, 15, 0,
- db_scale_rec_gain),
-{
- .name = "Capture Source",
- .type = AD1848_MIX_CAPTURE,
-},
-AD1848_SINGLE("Loopback Capture Switch", 0, AD1848_LOOPBACK, 0, 1, 0),
-AD1848_SINGLE_TLV("Loopback Capture Volume", 0, AD1848_LOOPBACK, 1, 63, 0,
- db_scale_6bit),
-};
-
-int snd_ad1848_mixer(struct snd_ad1848 *chip)
-{
- struct snd_card *card;
- struct snd_pcm *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_mixer);
-
-/*
- * 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)
projects / linux-2.6-omap-h63xx.git / blobdiff