diff options
Diffstat (limited to 'target/linux/ubicom32/files/sound/ubicom32/ubi32-cs4384.c')
| -rw-r--r-- | target/linux/ubicom32/files/sound/ubicom32/ubi32-cs4384.c | 996 |
1 files changed, 0 insertions, 996 deletions
diff --git a/target/linux/ubicom32/files/sound/ubicom32/ubi32-cs4384.c b/target/linux/ubicom32/files/sound/ubicom32/ubi32-cs4384.c deleted file mode 100644 index 2679267732..0000000000 --- a/target/linux/ubicom32/files/sound/ubicom32/ubi32-cs4384.c +++ /dev/null @@ -1,996 +0,0 @@ -/* - * sound/ubicom32/ubi32-cs4384.c - * Interface to ubicom32 virtual audio peripheral - using CS4384 DAC - * - * (C) Copyright 2009, Ubicom, Inc. - * - * This file is part of the Ubicom32 Linux Kernel Port. - * - * The Ubicom32 Linux Kernel Port 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. - * - * The Ubicom32 Linux Kernel Port 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 the Ubicom32 Linux Kernel Port. If not, - * see <http://www.gnu.org/licenses/>. - */ - -#include <linux/i2c.h> -#include <linux/module.h> -#include <linux/moduleparam.h> -#include <linux/delay.h> -#include <sound/core.h> -#include <sound/tlv.h> -#include <sound/control.h> -#include <sound/pcm.h> -#include <sound/initval.h> -#include <asm/ip5000.h> -#include <asm/gpio.h> -#include <asm/audio.h> -#include <asm/ubi32-cs4384.h> -#include "ubi32.h" - -#define DRIVER_NAME "snd-ubi32-cs4384" - -/* - * Module properties - */ -static const struct i2c_device_id snd_ubi32_cs4384_id[] = { - {"cs4384", 0 }, - { } -}; -MODULE_DEVICE_TABLE(i2c, ubicom32audio_id); - -static int index = SNDRV_DEFAULT_IDX1; /* Index 0-MAX */ - -/* - * Mixer properties - */ -enum { - /* - * Be careful of changing the order of these IDs, they - * are used to index the volume array. - */ - SND_UBI32_CS4384_FRONT_ID, - SND_UBI32_CS4384_SURROUND_ID, - SND_UBI32_CS4384_CENTER_ID, - SND_UBI32_CS4384_LFE_ID, - SND_UBI32_CS4384_REAR_ID, - - /* - * This should be the last ID - */ - SND_UBI32_CS4384_LAST_ID, -}; -static const u8_t snd_ubi32_cs4384_ch_ofs[] = {0, 2, 4, 5, 6}; - -static const DECLARE_TLV_DB_SCALE(snd_ubi32_cs4384_db, -12750, 50, 0); - -#define snd_ubi32_cs4384_info_mute snd_ctl_boolean_stereo_info -#define snd_ubi32_cs4384_info_mute_mono snd_ctl_boolean_mono_info - -/* - * Mixer controls - */ -static int snd_ubi32_cs4384_info_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo); -static int snd_ubi32_cs4384_get_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol); -static int snd_ubi32_cs4384_put_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol); -static int snd_ubi32_cs4384_get_mute(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol); -static int snd_ubi32_cs4384_put_mute(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol); - -/* - * Make sure to update these if the structure below is changed - */ -#define SND_UBI32_MUTE_CTL_START 5 -#define SND_UBI32_MUTE_CTL_END 9 -static struct snd_kcontrol_new snd_ubi32_cs4384_controls[] __devinitdata = { - { - .iface = SNDRV_CTL_ELEM_IFACE_MIXER, - .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | - SNDRV_CTL_ELEM_ACCESS_TLV_READ, - .name = "Front Playback Volume", - .info = snd_ubi32_cs4384_info_volume, - .get = snd_ubi32_cs4384_get_volume, - .put = snd_ubi32_cs4384_put_volume, - .private_value = SND_UBI32_CS4384_FRONT_ID, - .tlv = { - .p = snd_ubi32_cs4384_db, - }, - }, - { - .iface = SNDRV_CTL_ELEM_IFACE_MIXER, - .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | - SNDRV_CTL_ELEM_ACCESS_TLV_READ, - .name = "Surround Playback Volume", - .info = snd_ubi32_cs4384_info_volume, - .get = snd_ubi32_cs4384_get_volume, - .put = snd_ubi32_cs4384_put_volume, - .private_value = SND_UBI32_CS4384_SURROUND_ID, - .tlv = { - .p = snd_ubi32_cs4384_db, - }, - }, - { - .iface = SNDRV_CTL_ELEM_IFACE_MIXER, - .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | - SNDRV_CTL_ELEM_ACCESS_TLV_READ, - .name = "Center Playback Volume", - .info = snd_ubi32_cs4384_info_volume, - .get = snd_ubi32_cs4384_get_volume, - .put = snd_ubi32_cs4384_put_volume, - .private_value = SND_UBI32_CS4384_CENTER_ID, - .tlv = { - .p = snd_ubi32_cs4384_db, - }, - }, - { - .iface = SNDRV_CTL_ELEM_IFACE_MIXER, - .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | - SNDRV_CTL_ELEM_ACCESS_TLV_READ, - .name = "LFE Playback Volume", - .info = snd_ubi32_cs4384_info_volume, - .get = snd_ubi32_cs4384_get_volume, - .put = snd_ubi32_cs4384_put_volume, - .private_value = SND_UBI32_CS4384_LFE_ID, - .tlv = { - .p = snd_ubi32_cs4384_db, - }, - }, - { - .iface = SNDRV_CTL_ELEM_IFACE_MIXER, - .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | - SNDRV_CTL_ELEM_ACCESS_TLV_READ, - .name = "Rear Playback Volume", - .info = snd_ubi32_cs4384_info_volume, - .get = snd_ubi32_cs4384_get_volume, - .put = snd_ubi32_cs4384_put_volume, - .private_value = SND_UBI32_CS4384_REAR_ID, - .tlv = { - .p = snd_ubi32_cs4384_db, - }, - }, - { - .iface = SNDRV_CTL_ELEM_IFACE_MIXER, - .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | - SNDRV_CTL_ELEM_ACCESS_TLV_READ, - .name = "Front Playback Switch", - .info = snd_ubi32_cs4384_info_mute, - .get = snd_ubi32_cs4384_get_mute, - .put = snd_ubi32_cs4384_put_mute, - .private_value = SND_UBI32_CS4384_FRONT_ID, - }, - { - .iface = SNDRV_CTL_ELEM_IFACE_MIXER, - .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | - SNDRV_CTL_ELEM_ACCESS_TLV_READ, - .name = "Surround Playback Switch", - .info = snd_ubi32_cs4384_info_mute, - .get = snd_ubi32_cs4384_get_mute, - .put = snd_ubi32_cs4384_put_mute, - .private_value = SND_UBI32_CS4384_SURROUND_ID, - }, - { - .iface = SNDRV_CTL_ELEM_IFACE_MIXER, - .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | - SNDRV_CTL_ELEM_ACCESS_TLV_READ, - .name = "Center Playback Switch", - .info = snd_ubi32_cs4384_info_mute_mono, - .get = snd_ubi32_cs4384_get_mute, - .put = snd_ubi32_cs4384_put_mute, - .private_value = SND_UBI32_CS4384_CENTER_ID, - }, - { - .iface = SNDRV_CTL_ELEM_IFACE_MIXER, - .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | - SNDRV_CTL_ELEM_ACCESS_TLV_READ, - .name = "LFE Playback Switch", - .info = snd_ubi32_cs4384_info_mute_mono, - .get = snd_ubi32_cs4384_get_mute, - .put = snd_ubi32_cs4384_put_mute, - .private_value = SND_UBI32_CS4384_LFE_ID, - }, - { - .iface = SNDRV_CTL_ELEM_IFACE_MIXER, - .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | - SNDRV_CTL_ELEM_ACCESS_TLV_READ, - .name = "Rear Playback Switch", - .info = snd_ubi32_cs4384_info_mute, - .get = snd_ubi32_cs4384_get_mute, - .put = snd_ubi32_cs4384_put_mute, - .private_value = SND_UBI32_CS4384_REAR_ID, - }, -}; - -/* - * Our private data - */ -struct snd_ubi32_cs4384_priv { - /* - * Array of current volumes - * (L, R, SL, SR, C, LFE, RL, RR) - */ - uint8_t volume[8]; - - /* - * Bitmask of mutes - * MSB (RR, RL, LFE, C, SR, SL, R, L) LSB - */ - uint8_t mute; - - /* - * Array of controls - */ - struct snd_kcontrol *kctls[ARRAY_SIZE(snd_ubi32_cs4384_controls)]; - - /* - * Lock to protect our card - */ - spinlock_t lock; -}; - -/* - * snd_ubi32_cs4384_info_volume - */ -static int snd_ubi32_cs4384_info_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) -{ - unsigned int id = (unsigned int)kcontrol->private_value; - - uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; - uinfo->count = 1; - if ((id != SND_UBI32_CS4384_LFE_ID) && - (id != SND_UBI32_CS4384_CENTER_ID)) { - uinfo->count = 2; - } - uinfo->value.integer.min = 0; - uinfo->value.integer.max = 255; - return 0; -} - -/* - * snd_ubi32_cs4384_get_volume - */ -static int snd_ubi32_cs4384_get_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) -{ - struct ubi32_snd_priv *priv = snd_kcontrol_chip(kcontrol); - struct snd_ubi32_cs4384_priv *cs4384_priv; - unsigned int id = (unsigned int)kcontrol->private_value; - int ch = snd_ubi32_cs4384_ch_ofs[id]; - unsigned long flags; - - if (id >= SND_UBI32_CS4384_LAST_ID) { - return -EINVAL; - } - - cs4384_priv = snd_ubi32_priv_get_drv(priv); - - spin_lock_irqsave(&cs4384_priv->lock, flags); - - ucontrol->value.integer.value[0] = cs4384_priv->volume[ch]; - if ((id != SND_UBI32_CS4384_LFE_ID) && - (id != SND_UBI32_CS4384_CENTER_ID)) { - ch++; - ucontrol->value.integer.value[1] = cs4384_priv->volume[ch]; - } - - spin_unlock_irqrestore(&cs4384_priv->lock, flags); - - return 0; -} - -/* - * snd_ubi32_cs4384_put_volume - */ -static int snd_ubi32_cs4384_put_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) -{ - struct ubi32_snd_priv *priv = snd_kcontrol_chip(kcontrol); - struct i2c_client *client = (struct i2c_client *)priv->client; - struct snd_ubi32_cs4384_priv *cs4384_priv; - unsigned int id = (unsigned int)kcontrol->private_value; - int ch = snd_ubi32_cs4384_ch_ofs[id]; - unsigned long flags; - unsigned char send[3]; - int nch; - int ret = -EINVAL; - - if (id >= SND_UBI32_CS4384_LAST_ID) { - return -EINVAL; - } - - cs4384_priv = snd_ubi32_priv_get_drv(priv); - - spin_lock_irqsave(&cs4384_priv->lock, flags); - - send[0] = 0; - switch (id) { - case SND_UBI32_CS4384_REAR_ID: - send[0] = 0x06; - - /* - * Fall through - */ - - case SND_UBI32_CS4384_SURROUND_ID: - send[0] += 0x03; - - /* - * Fall through - */ - - case SND_UBI32_CS4384_FRONT_ID: - send[0] += 0x8B; - nch = 2; - send[1] = 255 - (ucontrol->value.integer.value[0] & 0xFF); - send[2] = 255 - (ucontrol->value.integer.value[1] & 0xFF); - cs4384_priv->volume[ch++] = send[1]; - cs4384_priv->volume[ch] = send[2]; - break; - - case SND_UBI32_CS4384_LFE_ID: - send[0] = 0x81; - - /* - * Fall through - */ - - case SND_UBI32_CS4384_CENTER_ID: - send[0] += 0x11; - nch = 1; - send[1] = 255 - (ucontrol->value.integer.value[0] & 0xFF); - cs4384_priv->volume[ch] = send[1]; - break; - - default: - spin_unlock_irqrestore(&cs4384_priv->lock, flags); - goto done; - - } - - /* - * Send the volume to the chip - */ - nch++; - ret = i2c_master_send(client, send, nch); - if (ret != nch) { - snd_printk(KERN_ERR "Failed to set volume on CS4384\n"); - } - -done: - spin_unlock_irqrestore(&cs4384_priv->lock, flags); - - return ret; -} - -/* - * snd_ubi32_cs4384_get_mute - */ -static int snd_ubi32_cs4384_get_mute(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) -{ - struct ubi32_snd_priv *priv = snd_kcontrol_chip(kcontrol); - struct snd_ubi32_cs4384_priv *cs4384_priv; - unsigned int id = (unsigned int)kcontrol->private_value; - int ch = snd_ubi32_cs4384_ch_ofs[id]; - unsigned long flags; - - if (id >= SND_UBI32_CS4384_LAST_ID) { - return -EINVAL; - } - - cs4384_priv = snd_ubi32_priv_get_drv(priv); - - spin_lock_irqsave(&cs4384_priv->lock, flags); - - ucontrol->value.integer.value[0] = !(cs4384_priv->mute & (1 << ch)); - - if ((id != SND_UBI32_CS4384_LFE_ID) && - (id != SND_UBI32_CS4384_CENTER_ID)) { - ch++; - ucontrol->value.integer.value[1] = !(cs4384_priv->mute & (1 << ch)); - } - - spin_unlock_irqrestore(&cs4384_priv->lock, flags); - - return 0; -} - -/* - * snd_ubi32_cs4384_put_mute - */ -static int snd_ubi32_cs4384_put_mute(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) -{ - struct ubi32_snd_priv *priv = snd_kcontrol_chip(kcontrol); - struct i2c_client *client = (struct i2c_client *)priv->client; - struct snd_ubi32_cs4384_priv *cs4384_priv; - unsigned int id = (unsigned int)kcontrol->private_value; - int ch = snd_ubi32_cs4384_ch_ofs[id]; - unsigned long flags; - unsigned char send[2]; - int ret = -EINVAL; - - if (id >= SND_UBI32_CS4384_LAST_ID) { - return -EINVAL; - } - - cs4384_priv = snd_ubi32_priv_get_drv(priv); - - spin_lock_irqsave(&cs4384_priv->lock, flags); - - if (ucontrol->value.integer.value[0]) { - cs4384_priv->mute &= ~(1 << ch); - } else { - cs4384_priv->mute |= (1 << ch); - } - - if ((id != SND_UBI32_CS4384_LFE_ID) && (id != SND_UBI32_CS4384_CENTER_ID)) { - ch++; - if (ucontrol->value.integer.value[1]) { - cs4384_priv->mute &= ~(1 << ch); - } else { - cs4384_priv->mute |= (1 << ch); - } - } - - /* - * Update the chip's mute reigster - */ - send[0] = 0x09; - send[1] = cs4384_priv->mute; - ret = i2c_master_send(client, send, 2); - if (ret != 2) { - snd_printk(KERN_ERR "Failed to set mute on CS4384\n"); - } - - spin_unlock_irqrestore(&cs4384_priv->lock, flags); - - return ret; -} - -/* - * snd_ubi32_cs4384_mixer - * Setup the mixer controls - */ -static int __devinit snd_ubi32_cs4384_mixer(struct ubi32_snd_priv *priv) -{ - struct snd_card *card = priv->card; - struct snd_ubi32_cs4384_priv *cs4384_priv; - int i; - - cs4384_priv = snd_ubi32_priv_get_drv(priv); - for (i = 0; i < ARRAY_SIZE(snd_ubi32_cs4384_controls); i++) { - int err; - - cs4384_priv->kctls[i] = snd_ctl_new1(&snd_ubi32_cs4384_controls[i], priv); - err = snd_ctl_add(card, cs4384_priv->kctls[i]); - if (err) { - snd_printk(KERN_WARNING "Failed to add control %d\n", i); - return err; - } - } - return 0; -} - -/* - * snd_ubi32_cs4384_free - * Card private data free function - */ -void snd_ubi32_cs4384_free(struct snd_card *card) -{ - struct snd_ubi32_cs4384_priv *cs4384_priv; - struct ubi32_snd_priv *ubi32_priv; - - ubi32_priv = card->private_data; - cs4384_priv = snd_ubi32_priv_get_drv(ubi32_priv); - if (cs4384_priv) { - kfree(cs4384_priv); - } -} - -/* - * snd_ubi32_cs4384_setup_mclk - */ -static int snd_ubi32_cs4384_setup_mclk(struct ubi32_cs4384_platform_data *pdata) -{ - struct ubicom32_io_port *ioa = (struct ubicom32_io_port *)RA; - struct ubicom32_io_port *ioc = (struct ubicom32_io_port *)RC; - struct ubicom32_io_port *iod = (struct ubicom32_io_port *)RD; - struct ubicom32_io_port *ioe = (struct ubicom32_io_port *)RE; - struct ubicom32_io_port *ioh = (struct ubicom32_io_port *)RH; - unsigned int ctl0; - unsigned int ctlx; - unsigned int div; - - div = pdata->mclk_entries[0].div; - - ctl0 = (1 << 13); - ctlx = ((div - 1) << 16) | (div / 2); - - switch (pdata->mclk_src) { - case UBI32_CS4384_MCLK_PWM_0: - ioc->function |= 2; - ioc->ctl0 |= ctl0; - ioc->ctl1 = ctlx; - if (!ioa->function) { - ioa->function = 3; - } - return 0; - - case UBI32_CS4384_MCLK_PWM_1: - ioc->function |= 2; - ioc->ctl0 |= ctl0 << 16; - ioc->ctl2 = ctlx; - if (!ioe->function) { - ioe->function = 3; - } - return 0; - - case UBI32_CS4384_MCLK_PWM_2: - ioh->ctl0 |= ctl0; - ioh->ctl1 = ctlx; - if (!iod->function) { - iod->function = 3; - } - return 0; - - case UBI32_CS4384_MCLK_CLKDIV_1: - ioa->gpio_mask &= (1 << 7); - ioa->ctl1 &= ~(0x7F << 14); - ioa->ctl1 |= ((div - 1) << 14); - return 0; - - case UBI32_CS4384_MCLK_OTHER: - return 0; - } - - return 1; -} - -/* - * snd_ubi32_cs4384_set_rate - */ -static int snd_ubi32_cs4384_set_rate(struct ubi32_snd_priv *priv, int rate) -{ - struct ubi32_cs4384_platform_data *cpd = priv->pdata->priv_data; - struct ubicom32_io_port *ioa = (struct ubicom32_io_port *)RA; - struct ubicom32_io_port *ioc = (struct ubicom32_io_port *)RC; - struct ubicom32_io_port *ioh = (struct ubicom32_io_port *)RH; - unsigned int ctl; - unsigned int div = 0; - const u16_t mult[] = {64, 96, 128, 192, 256, 384, 512, 768, 1024}; - int i; - int j; - - - for (i = 0; i < sizeof(mult) / sizeof(u16_t); i++) { - for (j = 0; j < cpd->n_mclk; j++) { - if (((unsigned int)rate * (unsigned int)mult[i]) == - cpd->mclk_entries[j].rate) { - div = cpd->mclk_entries[j].div; - break; - } - } - } - - ctl = ((div - 1) << 16) | (div / 2); - - switch (cpd->mclk_src) { - case UBI32_CS4384_MCLK_PWM_0: - ioc->ctl1 = ctl; - return 0; - - case UBI32_CS4384_MCLK_PWM_1: - ioc->ctl2 = ctl; - return 0; - - case UBI32_CS4384_MCLK_PWM_2: - ioh->ctl1 = ctl; - return 0; - - case UBI32_CS4384_MCLK_CLKDIV_1: - ioa->ctl1 &= ~(0x7F << 14); - ioa->ctl1 |= ((div - 1) << 14); - return 0; - - case UBI32_CS4384_MCLK_OTHER: - return 0; - } - - return 1; -} - -/* - * snd_ubi32_cs4384_set_channels - * Mute unused channels - */ -static int snd_ubi32_cs4384_set_channels(struct ubi32_snd_priv *priv, int channels) -{ - struct i2c_client *client = (struct i2c_client *)priv->client; - struct snd_ubi32_cs4384_priv *cs4384_priv; - unsigned char send[2]; - int ret; - int i; - unsigned long flags; - - /* - * Only support 0, 2, 4, 6, 8 channels - */ - if ((channels > 8) || (channels & 1)) { - return -EINVAL; - } - - cs4384_priv = snd_ubi32_priv_get_drv(priv); - spin_lock_irqsave(&cs4384_priv->lock, flags); - - /* - * Address 09h, Mute control - */ - send[0] = 0x09; - send[1] = (unsigned char)(0xFF << channels); - - ret = i2c_master_send(client, send, 2); - - spin_unlock_irqrestore(&cs4384_priv->lock, flags); - - /* - * Notify the system that we changed the mutes - */ - cs4384_priv->mute = (unsigned char)(0xFF << channels); - - for (i = SND_UBI32_MUTE_CTL_START; i < SND_UBI32_MUTE_CTL_END; i++) { - snd_ctl_notify(priv->card, SNDRV_CTL_EVENT_MASK_VALUE, - &cs4384_priv->kctls[i]->id); - } - - if (ret != 2) { - return -ENXIO; - } - - return 0; -} - -/* - * snd_ubi32_cs4384_dac_init - */ -static int snd_ubi32_cs4384_dac_init(struct i2c_client *client, const struct i2c_device_id *id) -{ - int ret; - unsigned char send[2]; - unsigned char recv[2]; - - /* - * Initialize the CS4384 DAC over the I2C interface - */ - snd_printk(KERN_INFO "Initializing CS4384 DAC\n"); - - /* - * Register 0x01: device/revid - */ - send[0] = 0x01; - ret = i2c_master_send(client, send, 1); - if (ret != 1) { - snd_printk(KERN_ERR "Failed 1st attempt to write to CS4384 register 0x01\n"); - goto fail; - } - ret = i2c_master_recv(client, recv, 1); - if (ret != 1) { - snd_printk(KERN_ERR "Failed initial read of CS4384 registers\n"); - goto fail; - } - snd_printk(KERN_INFO "CS4384 DAC Device/Rev: %08x\n", recv[0]); - - /* - * Register 0x02: Mode Control 1 - * Control Port Enable, PCM, All DACs enabled, Power Down - */ - send[0] = 0x02; - send[1] = 0x81; - ret = i2c_master_send(client, send, 2); - if (ret != 2) { - snd_printk(KERN_ERR "Failed to set CPEN CS4384\n"); - goto fail; - } - - /* - * Register 0x08: Ramp and Mute - * RMP_UP, RMP_DN, PAMUTE, DAMUTE - */ - send[0] = 0x08; - send[1] = 0xBC; - ret = i2c_master_send(client, send, 2); - if (ret != 2) { - snd_printk(KERN_ERR "Failed to set CPEN CS4384\n"); - goto fail; - } - - /* - * Register 0x03: PCM Control - * I2S DIF[3:0] = 0001, no De-Emphasis, Auto speed mode - */ - send[0] = 0x03; - send[1] = 0x13; - ret = i2c_master_send(client, send, 2); - if (ret != 2) { - snd_printk(KERN_ERR "Failed to set CS4384 to I2S mode\n"); - goto fail; - } - - /* - * Register 0x0B/0x0C: Volume control A1/B1 - * Register 0x0E/0x0F: Volume control A2/B2 - * Register 0x11/0x12: Volume control A3/B3 - * Register 0x14/0x15: Volume control A4/B4 - */ - send[0] = 0x80 | 0x0B; - send[1] = 0x00; - send[2] = 0x00; - ret = i2c_master_send(client, send, 3); - if (ret != 3) { - snd_printk(KERN_ERR "Failed to set ch1 volume on CS4384\n"); - goto fail; - } - - send[0] = 0x80 | 0x0E; - send[1] = 0x00; - send[2] = 0x00; - ret = i2c_master_send(client, send, 3); - if (ret != 3) { - snd_printk(KERN_ERR "Failed to set ch2 volume on CS4384\n"); - goto fail; - } - - send[0] = 0x80 | 0x11; - send[1] = 0x00; - send[2] = 0x00; - ret = i2c_master_send(client, send, 3); - if (ret != 3) { - snd_printk(KERN_ERR "Failed to set ch3 volume on CS4384\n"); - goto fail; - } - - send[0] = 0x80 | 0x14; - send[1] = 0x00; - send[2] = 0x00; - ret = i2c_master_send(client, send, 3); - if (ret != 3) { - snd_printk(KERN_ERR "Failed to set ch4 volume on CS4384\n"); - goto fail; - } - - /* - * Register 09h: Mute control - * Mute all (we will unmute channels as needed) - */ - send[0] = 0x09; - send[1] = 0xFF; - ret = i2c_master_send(client, send, 2); - if (ret != 2) { - snd_printk(KERN_ERR "Failed to power up CS4384\n"); - goto fail; - } - - /* - * Register 0x02: Mode Control 1 - * Control Port Enable, PCM, All DACs enabled, Power Up - */ - send[0] = 0x02; - send[1] = 0x80; - ret = i2c_master_send(client, send, 2); - if (ret != 2) { - snd_printk(KERN_ERR "Failed to power up CS4384\n"); - goto fail; - } - - /* - * Make sure the changes took place, this helps verify we are talking to - * the correct chip. - */ - send[0] = 0x80 | 0x03; - ret = i2c_master_send(client, send, 1); - if (ret != 1) { - snd_printk(KERN_ERR "Failed to initiate readback\n"); - goto fail; - } - - ret = i2c_master_recv(client, recv, 1); - if (ret != 1) { - snd_printk(KERN_ERR "Failed second read of CS4384 registers\n"); - goto fail; - } - - if (recv[0] != 0x13) { - snd_printk(KERN_ERR "Failed to initialize CS4384 DAC\n"); - goto fail; - } - - snd_printk(KERN_INFO "CS4384 DAC Initialized\n"); - return 0; - -fail: - return -ENODEV; -} - -/* - * snd_ubi32_cs4384_i2c_probe - */ -static int snd_ubi32_cs4384_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id) -{ - struct snd_card *card; - struct ubi32_snd_priv *ubi32_priv; - int err, ret; - struct platform_device *pdev; - struct ubi32_cs4384_platform_data *pdata; - struct snd_ubi32_cs4384_priv *cs4384_priv; - - /* - * pdev is audio device - */ - pdev = client->dev.platform_data; - if (!pdev) { - return -ENODEV; - } - - /* - * pdev->dev.platform_data is ubi32-pcm platform_data - */ - pdata = audio_device_priv(pdev); - if (!pdata) { - return -ENODEV; - } - - /* - * Initialize the CS4384 DAC - */ - ret = snd_ubi32_cs4384_dac_init(client, id); - if (ret < 0) { - /* - * Initialization failed. Propagate the error. - */ - return ret; - } - - if (snd_ubi32_cs4384_setup_mclk(pdata)) { - return -EINVAL; - } - - /* - * Create a snd_card structure - */ - card = snd_card_new(index, "Ubi32-CS4384", THIS_MODULE, sizeof(struct ubi32_snd_priv)); - if (card == NULL) { - return -ENOMEM; - } - - card->private_free = snd_ubi32_cs4384_free; - ubi32_priv = card->private_data; - - /* - * Initialize the snd_card's private data structure - */ - ubi32_priv->card = card; - ubi32_priv->client = client; - ubi32_priv->set_channels = snd_ubi32_cs4384_set_channels; - ubi32_priv->set_rate = snd_ubi32_cs4384_set_rate; - - /* - * CS4384 DAC has a minimum sample rate of 4khz and an - * upper limit of 216khz for it's auto-detect. - */ - ubi32_priv->min_sample_rate = 4000; - ubi32_priv->max_sample_rate = 216000; - - /* - * Create our private data (to manage volume, etc) - */ - cs4384_priv = kzalloc(sizeof(struct snd_ubi32_cs4384_priv), GFP_KERNEL); - if (!cs4384_priv) { - snd_card_free(card); - return -ENOMEM; - } - snd_ubi32_priv_set_drv(ubi32_priv, cs4384_priv); - spin_lock_init(&cs4384_priv->lock); - - /* - * We start off all muted and max volume - */ - cs4384_priv->mute = 0xFF; - memset(cs4384_priv->volume, 0xFF, 8); - - /* - * Create the new PCM instance - */ - err = snd_ubi32_pcm_probe(ubi32_priv, pdev); - if (err < 0) { - snd_card_free(card); - return err; /* What is err? Need to include correct file */ - } - - strcpy(card->driver, "Ubi32-CS4384"); - strcpy(card->shortname, "Ubi32-CS4384"); - snprintf(card->longname, sizeof(card->longname), - "%s at sendirq=%d.%d recvirq=%d.%d regs=%p", - card->shortname, ubi32_priv->tx_irq, ubi32_priv->irq_idx, - ubi32_priv->rx_irq, ubi32_priv->irq_idx, ubi32_priv->adr); - - snd_card_set_dev(card, &client->dev); - - /* - * Set up the mixer - */ - snd_ubi32_cs4384_mixer(ubi32_priv); - - /* - * Register the sound card - */ - if ((err = snd_card_register(card)) != 0) { - snd_printk(KERN_INFO "snd_card_register error\n"); - } - - /* - * Store card for access from other methods - */ - i2c_set_clientdata(client, card); - - return 0; -} - -/* - * snd_ubi32_cs4384_i2c_remove - */ -static int __devexit snd_ubi32_cs4384_i2c_remove(struct i2c_client *client) -{ - struct snd_card *card; - struct ubi32_snd_priv *ubi32_priv; - - card = i2c_get_clientdata(client); - - ubi32_priv = card->private_data; - snd_ubi32_pcm_remove(ubi32_priv); - - snd_card_free(i2c_get_clientdata(client)); - i2c_set_clientdata(client, NULL); - - return 0; -} - -/* - * I2C driver description - */ -static struct i2c_driver snd_ubi32_cs4384_driver = { - .driver = { - .name = DRIVER_NAME, - .owner = THIS_MODULE, - }, - .id_table = snd_ubi32_cs4384_id, - .probe = snd_ubi32_cs4384_i2c_probe, - .remove = __devexit_p(snd_ubi32_cs4384_i2c_remove), -}; - -/* - * Driver init - */ -static int __init snd_ubi32_cs4384_init(void) -{ - return i2c_add_driver(&snd_ubi32_cs4384_driver); -} -module_init(snd_ubi32_cs4384_init); - -/* - * snd_ubi32_cs4384_exit - */ -static void __exit snd_ubi32_cs4384_exit(void) -{ - i2c_del_driver(&snd_ubi32_cs4384_driver); -} -module_exit(snd_ubi32_cs4384_exit); - -/* - * Module properties - */ -MODULE_ALIAS("i2c:" DRIVER_NAME); -MODULE_AUTHOR("Patrick Tjin"); -MODULE_DESCRIPTION("Driver for Ubicom32 audio devices CS4384"); -MODULE_LICENSE("GPL"); |