diff options
Diffstat (limited to 'sound/isa/ad1848/ad1848_lib.c')
| -rw-r--r-- | sound/isa/ad1848/ad1848_lib.c | 1279 |
1 files changed, 1279 insertions, 0 deletions
diff --git a/sound/isa/ad1848/ad1848_lib.c b/sound/isa/ad1848/ad1848_lib.c new file mode 100644 index 000000000000..8fb3db103e48 --- /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) |
