diff options
Diffstat (limited to 'sound/arm/u8500_alsa_ab8500.c')
| -rw-r--r-- | sound/arm/u8500_alsa_ab8500.c | 2691 |
1 files changed, 2691 insertions, 0 deletions
diff --git a/sound/arm/u8500_alsa_ab8500.c b/sound/arm/u8500_alsa_ab8500.c new file mode 100644 index 00000000000..39752388ab1 --- /dev/null +++ b/sound/arm/u8500_alsa_ab8500.c @@ -0,0 +1,2691 @@ +/* + * Copyright (C) ST-Ericsson SA 2010 + * + * Author: Deepak Karda + * for ST-Ericsson. + * + * License terms: + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2.1 as published + * by the Free Software Foundation. + */ + +/* This include must be defined at this point */ +//#include <sound/driver.h> +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/err.h> +#include <linux/platform_device.h> +#include <linux/errno.h> +#include <linux/ioctl.h> +#include <linux/delay.h> +#include <linux/slab.h> +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/mm.h> +#include <mach/hardware.h> +#include <asm/uaccess.h> +#include <asm/io.h> + +/* alsa system */ +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/initval.h> +#include <sound/control.h> +#include "u8500_alsa_ab8500.h" +#include <mach/msp.h> +#include <mach/debug.h> + +#define ALSA_NAME "DRIVER ALSA" + +#define DRIVER_DEBUG CONFIG_STM_ALSA_DEBUG /* enables/disables debug msgs */ +#define DRIVER_DEBUG_PFX ALSA_NAME /* msg header represents this module */ +#define DRIVER_DBG KERN_ERR /* message level */ + +static struct platform_device *device; +static int active_user = 0; + +/* +** Externel references +*/ +#if DRIVER_DEBUG > 0 +t_ab8500_codec_error dump_acodec_registers(void); +t_ab8500_codec_error dump_msp_registers(void); +#endif + +extern int u8500_acodec_rates[MAX_NO_OF_RATES]; +extern char *lpbk_state_in_texts[NUMBER_LOOPBACK_STATE]; +extern char *switch_state_in_texts[NUMBER_SWITCH_STATE]; +extern char *power_state_in_texts[NUMBER_POWER_STATE]; +extern char *tdm_mode_state_in_texts[NUMBER_TDM_MODE_STATE]; +extern char *direct_rendering_state_in_texts[NUMBER_DIRECT_RENDERING_STATE]; +extern char *pcm_rendering_state_in_texts[NUMBER_PCM_RENDERING_STATE]; +extern char *codec_dest_texts[NUMBER_OUTPUT_DEVICE]; +extern char *codec_in_texts[NUMBER_INPUT_DEVICE]; +extern struct driver_debug_st DBG_ST; +extern int second_config; +extern int u8500_register_alsa_hdmi_controls(struct snd_card *card, + u8500_acodec_chip_t * u8500_chip); +extern int snd_card_u8500_alsa_hdmi_new(u8500_acodec_chip_t * chip, int device); +/* +** Declaration for local functions +*/ +static int u8500_analog_lpbk_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo); +static int u8500_analog_lpbk_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo); +static int u8500_analog_lpbk_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo); + +static int u8500_digital_lpbk_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo); +static int u8500_digital_lpbk_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo); +static int u8500_digital_lpbk_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo); + +static int u8500_playback_vol_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo); +static int u8500_playback_vol_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo); +static int u8500_playback_vol_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo); + +static int u8500_capture_vol_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo); +static int u8500_capture_vol_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo); +static int u8500_capture_vol_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo); + +static int u8500_playback_sink_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo); +static int u8500_playback_sink_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo); +static int u8500_playback_sink_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo); + +static int u8500_capture_src_ctrl_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo); +static int u8500_capture_src_ctrl_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo); +static int u8500_capture_src_ctrl_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo); + +static int u8500_playback_switch_ctrl_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo); +static int u8500_playback_switch_ctrl_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo); +static int u8500_playback_switch_ctrl_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo); + +static int u8500_capture_switch_ctrl_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo); +static int u8500_capture_switch_ctrl_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo); +static int u8500_capture_switch_ctrl_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo); + +static int u8500_playback_power_ctrl_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo); +static int u8500_playback_power_ctrl_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo); +static int u8500_playback_power_ctrl_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo); + +static int u8500_capture_power_ctrl_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo); +static int u8500_capture_power_ctrl_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo); +static int u8500_capture_power_ctrl_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo); + +static int u8500_tdm_mode_ctrl_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo); +static int u8500_tdm_mode_ctrl_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo); +static int u8500_tdm_mode_ctrl_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo); + +static int u8500_direct_rendering_mode_ctrl_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info + *uinfo); +static int u8500_direct_rendering_mode_ctrl_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value + *uinfo); +static int u8500_direct_rendering_mode_ctrl_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value + *uinfo); +static int u8500_register_alsa_controls(struct snd_card *card, + u8500_acodec_chip_t * u8500_chip); + +static int u8500_pcm_rendering_mode_ctrl_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo); +static int u8500_pcm_rendering_mode_ctrl_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo); +static int u8500_pcm_rendering_mode_ctrl_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo); + +#if 0 /* DUMP REGISTER CONTROL */ +static int u8500_dump_register_ctrl_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo); +static int u8500_dump_register_ctrl_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo); +static int u8500_dump_register_ctrl_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo); +#endif /* DUMP REGISTER CONTROL */ + +static int configure_rate(struct snd_pcm_substream *, + t_u8500_acodec_config_need acodec_config_need); +static void dma_eot_handler(void *data); +/** +* configure_rate +* @substream - pointer to the playback/capture substream structure +* +* This functions configures audio codec in to stream frequency frequency +*/ + +static int configure_rate(struct snd_pcm_substream *substream, + t_u8500_acodec_config_need acodec_config_need) +{ + u8500_acodec_chip_t *chip = snd_pcm_substream_chip(substream); + t_codec_sample_frequency sampling_frequency = 0; + t_ab8500_codec_direction direction = 0; + struct acodec_configuration acodec_config; + int stream_id = substream->pstr->stream; + + FUNC_ENTER(); + switch (chip->freq) { + case 48000: + sampling_frequency = CODEC_SAMPLING_FREQ_48KHZ; + break; + default: + printk("not supported frequnecy \n"); + stm_error("not supported frequnecy \n"); + return -EINVAL; + } + + switch (stream_id) { + case SNDRV_PCM_STREAM_PLAYBACK: + direction = AB8500_CODEC_DIRECTION_OUT; + break; + case SNDRV_PCM_STREAM_CAPTURE: + direction = AB8500_CODEC_DIRECTION_IN; + break; + default: + stm_error(": wrong pcm stream\n"); + return -EINVAL; + } + + stm_dbg(DBG_ST.alsa, "enabling audiocodec audio mode\n"); + acodec_config.direction = direction; + acodec_config.input_frequency = T_CODEC_SAMPLING_FREQ_48KHZ; + acodec_config.output_frequency = T_CODEC_SAMPLING_FREQ_48KHZ; + acodec_config.mspClockSel = CODEC_MSP_APB_CLOCK; + acodec_config.mspInClockFreq = CODEC_MSP_INPUT_FREQ_48MHZ; + acodec_config.channels = chip->channels; + acodec_config.user = 2; + acodec_config.acodec_config_need = acodec_config_need; + acodec_config.handler = dma_eot_handler; + acodec_config.tx_callback_data = + &chip->stream[ALSA_PCM_DEV][SNDRV_PCM_STREAM_PLAYBACK]; + acodec_config.rx_callback_data = + &chip->stream[ALSA_PCM_DEV][SNDRV_PCM_STREAM_CAPTURE]; + acodec_config.direct_rendering_mode = chip->direct_rendering_mode; + acodec_config.tdm8_ch_mode = chip->tdm8_ch_mode; + acodec_config.digital_loopback = DISABLE; + u8500_acodec_enable_audio_mode(&acodec_config); + FUNC_EXIT(); + + return 0; +} + +/* +**************************************************************************************** +* playback vol control * +**************************************************************************************** +*/ + +struct snd_kcontrol_new u8500_playback_vol_ctrl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .device = 0, + .subdevice = 0, + .name = "PCM Playback Volume", + .index = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .private_value = 0xfff, + .info = u8500_playback_vol_info, + .get = u8500_playback_vol_get, + .put = u8500_playback_vol_put +}; + +/** +* u8500_playback_vol_info +* @kcontrol - pointer to the snd_kcontrol structure +* @uinfo - pointer to the snd_ctl_elem_info structure, this is filled by the function +* +* This functions fills playback volume info into user structure. +*/ + +static int u8500_playback_vol_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 2; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = 100; + uinfo->value.integer.step = 10; + return 0; +} + +/** +* u8500_playback_vol_get +* @kcontrol - pointer to the snd_kcontrol structure +* @uinfo - pointer to the snd_ctl_elem_info structure, this is filled by the function +* +* This functions fills the current volume setting to user structure. +*/ + +static int u8500_playback_vol_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo) +{ + u8500_acodec_chip_t *chip = + (u8500_acodec_chip_t *) snd_kcontrol_chip(kcontrol); + + int *p_left_volume = NULL; + int *p_right_volume = NULL; + + p_left_volume = (int *)&uinfo->value.integer.value[0]; + p_right_volume = (int *)&uinfo->value.integer.value[1]; + + u8500_acodec_get_output_volume(chip->output_device, p_left_volume, + p_right_volume, USER_ALSA); + return 0; +} + +/** +* u8500_playback_vol_put +* @kcontrol - pointer to the snd_kcontrol structure +* @uinfo - pointer to the snd_ctl_elem_info structure. +* +* This functions sets the playback audio codec volume . +*/ + +static int u8500_playback_vol_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo) +{ + u8500_acodec_chip_t *chip = + (u8500_acodec_chip_t *) snd_kcontrol_chip(kcontrol); + int changed = 0, error = 0; + + if (chip->output_lvolume != uinfo->value.integer.value[0] + || chip->output_rvolume != uinfo->value.integer.value[1]) { + chip->output_lvolume = uinfo->value.integer.value[0]; + chip->output_rvolume = uinfo->value.integer.value[1]; + + if (chip->output_lvolume > 100) + chip->output_lvolume = 100; + else if (chip->output_lvolume < 0) + chip->output_lvolume = 0; + + if (chip->output_rvolume > 100) + chip->output_rvolume = 100; + else if (chip->output_rvolume < 0) + chip->output_rvolume = 0; + + error = + u8500_acodec_set_output_volume(chip->output_device, + chip->output_lvolume, + chip->output_rvolume, + USER_ALSA); + + if (error) { + stm_error + (" : set volume for speaker/headphone failed\n"); + return changed; + } + changed = 1; + } + + return changed; +} + +/* +**************************************************************************************** +* capture vol control * +**************************************************************************************** +*/ + +struct snd_kcontrol_new u8500_capture_vol_ctrl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .device = 0, + .subdevice = 1, + .name = "PCM Capture Volume", + .index = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .private_value = 0xfff, + .info = u8500_capture_vol_info, + .get = u8500_capture_vol_get, + .put = u8500_capture_vol_put +}; + +/** +* u8500_capture_vol_info +* @kcontrol - pointer to the snd_kcontrol structure +* @uinfo - pointer to the snd_ctl_elem_info structure, this is filled by the function +* +* This functions fills capture volume info into user structure. +*/ +static int u8500_capture_vol_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 2; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = 100; + uinfo->value.integer.step = 10; + return 0; +} + +/** +* u8500_capture_vol_get +* @kcontrol - pointer to the snd_kcontrol structure +* @uinfo - pointer to the snd_ctl_elem_info structure, this is filled by the function +* +* This functions returns the current capture volume setting to user structure. +*/ + +static int u8500_capture_vol_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo) +{ + u8500_acodec_chip_t *chip = + (u8500_acodec_chip_t *) snd_kcontrol_chip(kcontrol); + + int *p_left_volume = NULL; + int *p_right_volume = NULL; + + p_left_volume = (int *)&uinfo->value.integer.value[0]; + p_right_volume = (int *)&uinfo->value.integer.value[1]; + + u8500_acodec_get_input_volume(chip->input_device, p_left_volume, + p_right_volume, USER_ALSA); + return 0; +} + +/** +* u8500_capture_vol_put +* @kcontrol - pointer to the snd_kcontrol structure +* @uinfo - pointer to the snd_ctl_elem_info structure. +* +* This functions sets the capture audio codec volume with values provided. +*/ + +static int u8500_capture_vol_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo) +{ + u8500_acodec_chip_t *chip = + (u8500_acodec_chip_t *) snd_kcontrol_chip(kcontrol); + int changed = 0, error = 0; + + if (chip->input_lvolume != uinfo->value.integer.value[0] + || chip->input_rvolume != uinfo->value.integer.value[1]) { + chip->input_lvolume = uinfo->value.integer.value[0]; + chip->input_rvolume = uinfo->value.integer.value[1]; + + if (chip->input_lvolume > 100) + chip->input_lvolume = 100; + else if (chip->input_lvolume < 0) + chip->input_lvolume = 0; + + if (chip->input_rvolume > 100) + chip->input_rvolume = 100; + else if (chip->input_rvolume < 0) + chip->input_rvolume = 0; + + error = u8500_acodec_set_input_volume(chip->input_device, + chip->input_rvolume, + chip->input_lvolume, + USER_ALSA); + if (error) { + stm_error(" : set input volume failed\n"); + return changed; + } + changed = 1; + } + + return changed; +} + +/* +**************************************************************************************** +* playback sink control * +**************************************************************************************** +*/ + +static struct snd_kcontrol_new u8500_playback_sink_ctrl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .device = 0, + .subdevice = 0, + .name = "PCM Playback Sink", + .index = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .private_value = 0xffff, + .info = u8500_playback_sink_info, + .get = u8500_playback_sink_get, + .put = u8500_playback_sink_put +}; + +/** +* u8500_playback_sink_info +* @kcontrol - pointer to the snd_kcontrol structure +* @uinfo - pointer to the snd_ctl_elem_info structure, this is filled by the function +* +* This functions fills playback device info into user structure. +*/ +static int u8500_playback_sink_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + + uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; + uinfo->value.enumerated.items = NUMBER_OUTPUT_DEVICE; + uinfo->count = 1; + if (uinfo->value.enumerated.item >= NUMBER_OUTPUT_DEVICE) + uinfo->value.enumerated.item = NUMBER_OUTPUT_DEVICE - 1; + strcpy(uinfo->value.enumerated.name, + codec_dest_texts[uinfo->value.enumerated.item]); + return 0; +} + +/** +* u8500_playback_sink_get +* @kcontrol - pointer to the snd_kcontrol structure +* @uinfo - pointer to the snd_ctl_elem_info structure, this is filled by the function +* +* This functions returns the current playback device selected. +*/ +static int u8500_playback_sink_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo) +{ + u8500_acodec_chip_t *chip = + (u8500_acodec_chip_t *) snd_kcontrol_chip(kcontrol); + uinfo->value.enumerated.item[0] = chip->output_device; + return 0; +} + +/** +* u8500_playback_sink_put +* @kcontrol - pointer to the snd_kcontrol structure +* @ . +* +* This functions sets the playback device. +*/ +static int u8500_playback_sink_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo) +{ + u8500_acodec_chip_t *chip = + (u8500_acodec_chip_t *) snd_kcontrol_chip(kcontrol); + int changed = 0, error; + + if (chip->output_device != uinfo->value.enumerated.item[0]) { + chip->output_device = uinfo->value.enumerated.item[0]; + error = + u8500_acodec_select_output(chip->output_device, + USER_ALSA, chip->tdm8_ch_mode); + if (error) { + stm_error(" : select output failed\n"); + return changed; + } + changed = 1; + } + return changed; +} + +/* +**************************************************************************************** +* capture src control * +**************************************************************************************** +*/ + +static struct snd_kcontrol_new u8500_capture_src_ctrl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .device = 0, + .subdevice = 1, + .name = "PCM Capture Source", + .index = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .private_value = 0xffff, + .info = u8500_capture_src_ctrl_info, + .get = u8500_capture_src_ctrl_get, + .put = u8500_capture_src_ctrl_put +}; + +/** +* u8500_capture_src_ctrl_info +* @kcontrol - pointer to the snd_kcontrol structure +* @uinfo - pointer to the snd_ctl_elem_info structure, this is filled by the function +* +* This functions fills capture device info into user structure. +*/ +static int u8500_capture_src_ctrl_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; + uinfo->value.enumerated.items = NUMBER_INPUT_DEVICE; + uinfo->count = 1; + if (uinfo->value.enumerated.item >= NUMBER_INPUT_DEVICE) + uinfo->value.enumerated.item = NUMBER_INPUT_DEVICE - 1; + strcpy(uinfo->value.enumerated.name, + codec_in_texts[uinfo->value.enumerated.item]); + return 0; +} + +/** +* u8500_capture_src_ctrl_get +* @kcontrol - pointer to the snd_kcontrol structure +* @uinfo - pointer to the snd_ctl_elem_info structure, this is filled by the function +* +* This functions returns the current capture device selected. +*/ +static int u8500_capture_src_ctrl_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo) +{ + u8500_acodec_chip_t *chip = + (u8500_acodec_chip_t *) snd_kcontrol_chip(kcontrol); + uinfo->value.enumerated.item[0] = chip->input_device; + return 0; +} + +/** +* u8500_capture_src_ctrl_put +* @kcontrol - pointer to the snd_kcontrol structure +* @uinfo - pointer to the snd_ctl_elem_info structure, +* +* This functions sets the capture device. +*/ +static int u8500_capture_src_ctrl_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo) +{ + u8500_acodec_chip_t *chip = + (u8500_acodec_chip_t *) snd_kcontrol_chip(kcontrol); + int changed = 0, error; + + if (chip->input_device != uinfo->value.enumerated.item[0]) { + chip->input_device = uinfo->value.enumerated.item[0]; + error = + u8500_acodec_select_input(chip->input_device, USER_ALSA, + chip->tdm8_ch_mode); + if (error) { + stm_error(" : select input failed\n"); + return changed; + } + changed = 1; + } + return changed; +} + +/* +*************************************************************************************** +* analog lpbk control * +*************************************************************************************** +*/ + +struct snd_kcontrol_new u8500_analog_lpbk_ctrl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .device = 0, + .name = "Analog Loopback", + .index = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .private_value = 0xfff, + .info = u8500_analog_lpbk_info, + .get = u8500_analog_lpbk_get, + .put = u8500_analog_lpbk_put +}; + +/** +* u8500_analog_lpbk_info +* @kcontrol - pointer to the snd_kcontrol structure +* @uinfo - pointer to the snd_ctl_elem_info structure, this is filled by the function +* +* This functions fills playback device info into user structure. +*/ +static int u8500_analog_lpbk_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + + uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; + uinfo->value.enumerated.items = NUMBER_LOOPBACK_STATE; + uinfo->count = 1; + if (uinfo->value.enumerated.item >= NUMBER_LOOPBACK_STATE) + uinfo->value.enumerated.item = NUMBER_LOOPBACK_STATE - 1; + strcpy(uinfo->value.enumerated.name, + lpbk_state_in_texts[uinfo->value.enumerated.item]); + return 0; +} + +/** +* u8500_analog_lpbk_get +* @kcontrol - pointer to the snd_kcontrol structure +* @uinfo - pointer to the snd_ctl_elem_info structure, this is filled by the function +* +* This functions returns the current playback device selected. +*/ +static int u8500_analog_lpbk_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo) +{ + u8500_acodec_chip_t *chip = + (u8500_acodec_chip_t *) snd_kcontrol_chip(kcontrol); + uinfo->value.enumerated.item[0] = chip->analog_lpbk; + return 0; +} + +/** +* u8500_analog_lpbk_put +* @kcontrol - pointer to the snd_kcontrol structure +* @ . +* +* This functions sets the playback device. +*/ +static int u8500_analog_lpbk_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo) +{ + u8500_acodec_chip_t *chip = + (u8500_acodec_chip_t *) snd_kcontrol_chip(kcontrol); + int changed = 0; + t_ab8500_codec_error error; + + if (chip->analog_lpbk != uinfo->value.enumerated.item[0]) { + chip->analog_lpbk = uinfo->value.enumerated.item[0]; + + error = + u8500_acodec_toggle_analog_lpbk(chip->analog_lpbk, + USER_ALSA); + + if (AB8500_CODEC_OK != error) { + stm_error + (" : select u8500_acodec_set_analog_lpbk_state failed\n"); + return changed; + } + changed = 1; + } + return changed; +} + +/* +**************************************************************************************** +* digital lpbk control * +**************************************************************************************** +*/ + +struct snd_kcontrol_new u8500_digital_lpbk_ctrl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .device = 0, + .name = "Digital Loopback", + .index = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .private_value = 0xfff, + .info = u8500_digital_lpbk_info, + .get = u8500_digital_lpbk_get, + .put = u8500_digital_lpbk_put +}; + +/** +* u8500_digital_lpbk_info +* @kcontrol - pointer to the snd_kcontrol structure +* @uinfo - pointer to the snd_ctl_elem_info structure, this is filled by the function +* +* This functions fills playback device info into user structure. +*/ +static int u8500_digital_lpbk_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + + uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; + uinfo->value.enumerated.items = NUMBER_LOOPBACK_STATE; + uinfo->count = 1; + if (uinfo->value.enumerated.item >= NUMBER_LOOPBACK_STATE) + uinfo->value.enumerated.item = NUMBER_LOOPBACK_STATE - 1; + strcpy(uinfo->value.enumerated.name, + lpbk_state_in_texts[uinfo->value.enumerated.item]); + return 0; +} + +/** +* u8500_digital_lpbk_get +* @kcontrol - pointer to the snd_kcontrol structure +* @uinfo - pointer to the snd_ctl_elem_info structure, this is filled by the function +* +* This functions returns the current playback device selected. +*/ +static int u8500_digital_lpbk_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo) +{ + u8500_acodec_chip_t *chip = + (u8500_acodec_chip_t *) snd_kcontrol_chip(kcontrol); + uinfo->value.enumerated.item[0] = chip->digital_lpbk; + return 0; +} + +/** +* u8500_analog_lpbk_put +* @kcontrol - pointer to the snd_kcontrol structure +* @ . +* +* This functions sets the playback device. +*/ +static int u8500_digital_lpbk_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo) +{ + u8500_acodec_chip_t *chip = + (u8500_acodec_chip_t *) snd_kcontrol_chip(kcontrol); + int changed = 0; + t_ab8500_codec_error error; + + if (chip->digital_lpbk != uinfo->value.enumerated.item[0]) { + chip->digital_lpbk = uinfo->value.enumerated.item[0]; + + error = u8500_acodec_toggle_digital_lpbk(chip->digital_lpbk, + chip->output_device, + chip->input_device, + USER_ALSA, + chip->tdm8_ch_mode); + + /*if((error = u8500_acodec_set_output_volume(chip->output_device,50,50,USER_ALSA))) + { + stm_error(" : set output volume failed\n"); + return error; + } + + if ((error = u8500_acodec_set_input_volume(chip->input_device,50,50,USER_ALSA))) + { + stm_error(" : set input volume failed\n"); + return error; + } */ + + if (AB8500_CODEC_OK != error) { + stm_error + (" : select u8500_acodec_set_digital_lpbk_state failed\n"); + return changed; + } + changed = 1; + } + return changed; +} + +/* +**************************************************************************************** +* playback switch control * +**************************************************************************************** +*/ + +struct snd_kcontrol_new u8500_playback_switch_ctrl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .device = 0, + .subdevice = 0, + .name = "PCM Playback Mute", + .index = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .private_value = 0xfff, + .info = u8500_playback_switch_ctrl_info, + .get = u8500_playback_switch_ctrl_get, + .put = u8500_playback_switch_ctrl_put +}; + +/** +* u8500_playback_switch_ctrl_info +* @kcontrol - pointer to the snd_kcontrol structure +* @uinfo - pointer to the snd_ctl_elem_info structure, this is filled by the function +* +* This functions fills playback device info into user structure. +*/ +static int u8500_playback_switch_ctrl_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + + uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; + uinfo->value.enumerated.items = NUMBER_SWITCH_STATE; + uinfo->count = 1; + if (uinfo->value.enumerated.item >= NUMBER_SWITCH_STATE) + uinfo->value.enumerated.item = NUMBER_SWITCH_STATE - 1; + strcpy(uinfo->value.enumerated.name, + switch_state_in_texts[uinfo->value.enumerated.item]); + return 0; +} + +/** +* u8500_playback_switch_ctrl_get +* @kcontrol - pointer to the snd_kcontrol structure +* @uinfo - pointer to the snd_ctl_elem_info structure, this is filled by the function +* +* This functions returns the current playback device selected. +*/ +static int u8500_playback_switch_ctrl_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo) +{ + u8500_acodec_chip_t *chip = + (u8500_acodec_chip_t *) snd_kcontrol_chip(kcontrol); + uinfo->value.enumerated.item[0] = chip->playback_switch; + return 0; +} + +/** +* u8500_playback_switch_ctrl_put +* @kcontrol - pointer to the snd_kcontrol structure +* @ . +* +* This functions sets the playback device. +*/ +static int u8500_playback_switch_ctrl_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo) +{ + u8500_acodec_chip_t *chip = + (u8500_acodec_chip_t *) snd_kcontrol_chip(kcontrol); + int changed = 0; + t_ab8500_codec_error error; + + if (chip->playback_switch != uinfo->value.enumerated.item[0]) { + chip->playback_switch = uinfo->value.enumerated.item[0]; + + error = + u8500_acodec_toggle_playback_mute_control(chip-> + output_device, + chip-> + playback_switch, + USER_ALSA); + + if (AB8500_CODEC_OK != error) { + stm_error + (" : select u8500_playback_switch_ctrl_put failed\n"); + return changed; + } + changed = 1; + } + return changed; +} + +/* +**************************************************************************************** +* Capture switch control * +**************************************************************************************** +*/ + +struct snd_kcontrol_new u8500_capture_switch_ctrl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .device = 0, + .subdevice = 1, + .name = "PCM Capture Mute", + .index = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .private_value = 0xfff, + .info = u8500_capture_switch_ctrl_info, + .get = u8500_capture_switch_ctrl_get, + .put = u8500_capture_switch_ctrl_put +}; + +/** +* u8500_capture_switch_ctrl_info +* @kcontrol - pointer to the snd_kcontrol structure +* @uinfo - pointer to the snd_ctl_elem_info structure, this is filled by the function +* +* This functions fills playback device info into user structure. +*/ +static int u8500_capture_switch_ctrl_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + + uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; + uinfo->value.enumerated.items = NUMBER_SWITCH_STATE; + uinfo->count = 1; + if (uinfo->value.enumerated.item >= NUMBER_SWITCH_STATE) + uinfo->value.enumerated.item = NUMBER_SWITCH_STATE - 1; + strcpy(uinfo->value.enumerated.name, + switch_state_in_texts[uinfo->value.enumerated.item]); + return 0; +} + +/** +* u8500_capture_switch_ctrl_get +* @kcontrol - pointer to the snd_kcontrol structure +* @uinfo - pointer to the snd_ctl_elem_info structure, this is filled by the function +* +* This functions returns the current playback device selected. +*/ +static int u8500_capture_switch_ctrl_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo) +{ + u8500_acodec_chip_t *chip = + (u8500_acodec_chip_t *) snd_kcontrol_chip(kcontrol); + uinfo->value.enumerated.item[0] = chip->capture_switch; + return 0; +} + +/** +* u8500_capture_switch_ctrl_put +* @kcontrol - pointer to the snd_kcontrol structure +* @ . +* +* This functions sets the playback device. +*/ +static int u8500_capture_switch_ctrl_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo) +{ + u8500_acodec_chip_t *chip = + (u8500_acodec_chip_t *) snd_kcontrol_chip(kcontrol); + int changed = 0; + t_ab8500_codec_error error; + + if (chip->capture_switch != uinfo->value.enumerated.item[0]) { + chip->capture_switch = uinfo->value.enumerated.item[0]; + + error = + u8500_acodec_toggle_capture_mute_control(chip->input_device, + chip-> + capture_switch, + USER_ALSA); + + if (AB8500_CODEC_OK != error) { + stm_error + (" : select u8500_capture_switch_ctrl_put failed\n"); + return changed; + } + changed = 1; + } + return changed; +} + +/* +**************************************************************************************** +* playback power control * +**************************************************************************************** +*/ + +struct snd_kcontrol_new u8500_playback_power_ctrl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .device = 0, + .subdevice = 0, + .name = "PCM Playback Power", + .index = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .private_value = 0xfff, + .info = u8500_playback_power_ctrl_info, + .get = u8500_playback_power_ctrl_get, + .put = u8500_playback_power_ctrl_put +}; + +/** +* u8500_playback_power_ctrl_info +* @kcontrol - pointer to the snd_kcontrol structure +* @uinfo - pointer to the snd_ctl_elem_info structure, this is filled by the function +* +* This functions fills playback device info into user structure. +*/ +static int u8500_playback_power_ctrl_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + + uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; + uinfo->value.enumerated.items = NUMBER_POWER_STATE; + uinfo->count = 1; + if (uinfo->value.enumerated.item >= NUMBER_POWER_STATE) + uinfo->value.enumerated.item = NUMBER_POWER_STATE - 1; + strcpy(uinfo->value.enumerated.name, + power_state_in_texts[uinfo->value.enumerated.item]); + return 0; +} + +/** +* u8500_playback_power_ctrl_get +* @kcontrol - pointer to the snd_kcontrol structure +* @uinfo - pointer to the snd_ctl_elem_info structure, this is filled by the function +* +* This functions returns the current playback device selected. +*/ +static int u8500_playback_power_ctrl_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo) +{ + u8500_acodec_chip_t *chip = + (u8500_acodec_chip_t *) snd_kcontrol_chip(kcontrol); + uinfo->value.enumerated.item[0] = + u8500_acodec_get_dest_power_state(chip->output_device); + return 0; +} + +/** +* u8500_playback_power_ctrl_put +* @kcontrol - pointer to the snd_kcontrol structure +* @ . +* +* This functions sets the playback device. +*/ +static int u8500_playback_power_ctrl_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo) +{ + u8500_acodec_chip_t *chip = + (u8500_acodec_chip_t *) snd_kcontrol_chip(kcontrol); + int changed = 0; + t_ab8500_codec_error error; + t_u8500_bool_state power_state; + + power_state = u8500_acodec_get_dest_power_state(chip->output_device); + + if (power_state != uinfo->value.enumerated.item[0]) { + power_state = uinfo->value.enumerated.item[0]; + + error = + u8500_acodec_set_dest_power_cntrl(chip->output_device, + power_state); + + if (AB8500_CODEC_OK != error) { + stm_error + (" : select u8500_acodec_set_dest_power_cntrl failed\n"); + return changed; + } + + /* configure the volume settings for the acodec */ + if ((error = + u8500_acodec_set_output_volume(chip->output_device, + chip->output_lvolume, + chip->output_rvolume, + USER_ALSA))) { + stm_error(" : set output volume failed\n"); + return error; + } + changed = 1; + } + return changed; +} + +/* +**************************************************************************************** +* capture power control * +**************************************************************************************** +*/ + +struct snd_kcontrol_new u8500_capture_power_ctrl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .device = 0, + .subdevice = 0, + .name = "PCM Capture Power", + .index = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .private_value = 0xfff, + .info = u8500_capture_power_ctrl_info, + .get = u8500_capture_power_ctrl_get, + .put = u8500_capture_power_ctrl_put +}; + +/** +* u8500_capture_power_ctrl_info +* @kcontrol - pointer to the snd_kcontrol structure +* @uinfo - pointer to the snd_ctl_elem_info structure, this is filled by the function +* +* This functions fills playback device info into user structure. +*/ +static int u8500_capture_power_ctrl_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + + uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; + uinfo->value.enumerated.items = NUMBER_POWER_STATE; + uinfo->count = 1; + if (uinfo->value.enumerated.item >= NUMBER_POWER_STATE) + uinfo->value.enumerated.item = NUMBER_POWER_STATE - 1; + strcpy(uinfo->value.enumerated.name, + power_state_in_texts[uinfo->value.enumerated.item]); + return 0; +} + +/** +* u8500_capture_power_ctrl_get +* @kcontrol - pointer to the snd_kcontrol structure +* @uinfo - pointer to the snd_ctl_elem_info structure, this is filled by the function +* +* This functions returns the current playback device selected. +*/ +static int u8500_capture_power_ctrl_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo) +{ + u8500_acodec_chip_t *chip = + (u8500_acodec_chip_t *) snd_kcontrol_chip(kcontrol); + uinfo->value.enumerated.item[0] = + u8500_acodec_get_src_power_state(chip->input_device); + return 0; +} + +/** +* u8500_capture_power_ctrl_put +* @kcontrol - pointer to the snd_kcontrol structure +* @ . +* +* This functions sets the playback device. +*/ +static int u8500_capture_power_ctrl_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo) +{ + u8500_acodec_chip_t *chip = + (u8500_acodec_chip_t *) snd_kcontrol_chip(kcontrol); + int changed = 0; + t_ab8500_codec_error error; + t_u8500_bool_state power_state; + + power_state = u8500_acodec_get_src_power_state(chip->input_device); + + if (power_state != uinfo->value.enumerated.item[0]) { + power_state = uinfo->value.enumerated.item[0]; + + error = + u8500_acodec_set_src_power_cntrl(chip->input_device, + power_state); + + if (AB8500_CODEC_OK != error) { + stm_error + (" : select u8500_acodec_set_src_power_cntrl failed\n"); + return changed; + } + changed = 1; + } + return changed; +} + +/* +**************************************************************************************** +* TDM 8 channel mode control * +**************************************************************************************** +*/ + +struct snd_kcontrol_new u8500_tdm_mode_ctrl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .device = 0, + .subdevice = 0, + .name = "TDM 8 Channel Mode", + .index = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .private_value = 0xfff, + .info = u8500_tdm_mode_ctrl_info, + .get = u8500_tdm_mode_ctrl_get, + .put = u8500_tdm_mode_ctrl_put +}; + +/** +* u8500_tdm_mode_ctrl_info +* @kcontrol - pointer to the snd_kcontrol structure +* @uinfo - pointer to the snd_ctl_elem_info structure, this is filled by the function +* +* This functions fills playback device info into user structure. +*/ +static int u8500_tdm_mode_ctrl_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + + uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; + uinfo->value.enumerated.items = NUMBER_TDM_MODE_STATE; + uinfo->count = 1; + if (uinfo->value.enumerated.item >= NUMBER_TDM_MODE_STATE) + uinfo->value.enumerated.item = NUMBER_TDM_MODE_STATE - 1; + strcpy(uinfo->value.enumerated.name, + tdm_mode_state_in_texts[uinfo->value.enumerated.item]); + return 0; +} + +/** +* u8500_tdm_mode_ctrl_get +* @kcontrol - pointer to the snd_kcontrol structure +* @uinfo - pointer to the snd_ctl_elem_info structure, this is filled by the function +* +* This functions returns the current playback device selected. +*/ +static int u8500_tdm_mode_ctrl_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo) +{ + u8500_acodec_chip_t *chip = + (u8500_acodec_chip_t *) snd_kcontrol_chip(kcontrol); + uinfo->value.enumerated.item[0] = chip->tdm8_ch_mode; + return 0; +} + +/** +* u8500_tdm_mode_ctrl_put +* @kcontrol - pointer to the snd_kcontrol structure +* @ . +* +* This functions sets the playback device. +*/ +static int u8500_tdm_mode_ctrl_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo) +{ + u8500_acodec_chip_t *chip = + (u8500_acodec_chip_t *) snd_kcontrol_chip(kcontrol); + int changed = 0; + t_ab8500_codec_error error; + + chip->tdm8_ch_mode = uinfo->value.enumerated.item[0]; + + if (ENABLE == chip->tdm8_ch_mode) + printk("\n TDM 8 channel mode enabled\n"); + else + printk("\n TDM 8 channel mode disabled\n"); + + changed = 1; + + return changed; +} + +/* +**************************************************************************************** +* Direct Rendering Mode control * +**************************************************************************************** +*/ + +struct snd_kcontrol_new u8500_direct_rendering_mode_ctrl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .device = 0, + .name = "Direct Rendering Mode", + .index = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .private_value = 0xfff, + .info = u8500_direct_rendering_mode_ctrl_info, + .get = u8500_direct_rendering_mode_ctrl_get, + .put = u8500_direct_rendering_mode_ctrl_put +}; + +/** +* u8500_direct_rendering_mode_ctrl_info +* @kcontrol - pointer to the snd_kcontrol structure +* @uinfo - pointer to the snd_ctl_elem_info structure, this is filled by the function +* +* This functions fills playback device info into user structure. +*/ +static int u8500_direct_rendering_mode_ctrl_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info + *uinfo) +{ + + uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; + uinfo->value.enumerated.items = NUMBER_DIRECT_RENDERING_STATE; + uinfo->count = 1; + if (uinfo->value.enumerated.item >= NUMBER_DIRECT_RENDERING_STATE) + uinfo->value.enumerated.item = + NUMBER_DIRECT_RENDERING_STATE - 1; + strcpy(uinfo->value.enumerated.name, + direct_rendering_state_in_texts[uinfo->value.enumerated.item]); + return 0; +} + +/** +* u8500_direct_rendering_mode_ctrl_get +* @kcontrol - pointer to the snd_kcontrol structure +* @uinfo - pointer to the snd_ctl_elem_info structure, this is filled by the function +* +* This functions returns the current playback device selected. +*/ +static int u8500_direct_rendering_mode_ctrl_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value + *uinfo) +{ + u8500_acodec_chip_t *chip = + (u8500_acodec_chip_t *) snd_kcontrol_chip(kcontrol); + uinfo->value.enumerated.item[0] = chip->direct_rendering_mode; + return 0; +} + +/** +* u8500_direct_rendering_mode_ctrl_put +* @kcontrol - pointer to the snd_kcontrol structure +* @ . +* +* This functions sets the playback device. +*/ +static int u8500_direct_rendering_mode_ctrl_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value + *uinfo) +{ + u8500_acodec_chip_t *chip = + (u8500_acodec_chip_t *) snd_kcontrol_chip(kcontrol); + int changed = 0; + t_ab8500_codec_error error; + + chip->direct_rendering_mode = uinfo->value.enumerated.item[0]; + changed = 1; + + return changed; +} + +/* +**************************************************************************************** +* PCM Rendering Mode control * +**************************************************************************************** +*/ + +struct snd_kcontrol_new u8500_pcm_rendering_mode_ctrl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .device = 0, + .name = "PCM Rendering Mode", + .index = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .private_value = 0xfff, + .info = u8500_pcm_rendering_mode_ctrl_info, + .get = u8500_pcm_rendering_mode_ctrl_get, + .put = u8500_pcm_rendering_mode_ctrl_put +}; + +/** +* u8500_pcm_rendering_mode_ctrl_info +* @kcontrol - pointer to the snd_kcontrol structure +* @uinfo - pointer to the snd_ctl_elem_info structure, this is filled by the function +* +* This functions fills playback device info into user structure. +*/ +static int u8500_pcm_rendering_mode_ctrl_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + + uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; + uinfo->value.enumerated.items = NUMBER_PCM_RENDERING_STATE; + uinfo->count = 3; + if (uinfo->value.enumerated.item >= NUMBER_PCM_RENDERING_STATE) + uinfo->value.enumerated.item = NUMBER_PCM_RENDERING_STATE - 1; + strcpy(uinfo->value.enumerated.name, + pcm_rendering_state_in_texts[uinfo->value.enumerated.item]); + return 0; +} + +/** +* u8500_pcm_rendering_mode_ctrl_get +* @kcontrol - pointer to the snd_kcontrol structure +* @uinfo - pointer to the snd_ctl_elem_info structure, this is filled by the function +* +* This functions returns the current playback device selected. +*/ +static int u8500_pcm_rendering_mode_ctrl_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo) +{ + u8500_acodec_chip_t *chip = + (u8500_acodec_chip_t *) snd_kcontrol_chip(kcontrol); + uinfo->value.enumerated.item[0] = chip->burst_fifo_mode; + uinfo->value.enumerated.item[1] = chip->fm_playback_mode; + uinfo->value.enumerated.item[2] = chip->fm_tx_mode; + return 0; +} + +/** +* u8500_pcm_rendering_mode_ctrl_put +* @kcontrol - pointer to the snd_kcontrol structure +* @ . +* +* This functions sets the playback device. +*/ +static int u8500_pcm_rendering_mode_ctrl_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo) +{ + u8500_acodec_chip_t *chip = + (u8500_acodec_chip_t *) snd_kcontrol_chip(kcontrol); + int changed = 0; + t_ab8500_codec_error error; + + if (RENDERING_PENDING == uinfo->value.enumerated.item[0]) { + return changed; + } + if (chip->burst_fifo_mode != uinfo->value.enumerated.item[0]) { + chip->burst_fifo_mode = uinfo->value.enumerated.item[0]; + u8500_acodec_set_burst_mode_fifo(chip->burst_fifo_mode); + } + + chip->fm_playback_mode = uinfo->value.enumerated.item[1]; + chip->fm_tx_mode = uinfo->value.enumerated.item[2]; + + changed = 1; + + return changed; +} + +#if 0 /* DUMP REGISTER CONTROL */ +/* +**************************************************************************************** +* dump registers control * +**************************************************************************************** +*/ + +struct snd_kcontrol_new u8500_dump_register_ctrl = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .device = 0, + .name = "", + .index = 0, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .private_value = 0xfff, + .info = u8500_dump_register_ctrl_info, + .get = u8500_dump_register_ctrl_get, + .put = u8500_dump_register_ctrl_put +}; + +/** +* u8500_dump_register_ctrl_info +* @kcontrol - pointer to the snd_kcontrol structure +* @uinfo - pointer to the snd_ctl_elem_info structure, this is filled by the function +* +* This functions fills playback device info into user structure. +*/ +static int u8500_dump_register_ctrl_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + + uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; + uinfo->value.enumerated.items = NUMBER_PCM_RENDERING_STATE; + uinfo->count = 1; + if (uinfo->value.enumerated.item >= NUMBER_PCM_RENDERING_STATE) + uinfo->value.enumerated.item = NUMBER_PCM_RENDERING_STATE - 1; + strcpy(uinfo->value.enumerated.name, + pcm_rendering_state_in_texts[uinfo->value.enumerated.item]); + return 0; +} + +/** +* u8500_dump_register_ctrl_get +* @kcontrol - pointer to the snd_kcontrol structure +* @uinfo - pointer to the snd_ctl_elem_info structure, this is filled by the function +* +* This functions returns the current playback device selected. +*/ +static int u8500_dump_register_ctrl_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo) +{ + u8500_acodec_chip_t *chip = + (u8500_acodec_chip_t *) snd_kcontrol_chip(kcontrol); + uinfo->value.enumerated.item[0] = chip->burst_fifo_mode; + uinfo->value.enumerated.item[1] = chip->fm_playback_mode; + uinfo->value.enumerated.item[2] = chip->fm_tx_mode; + return 0; +} + +/** +* u8500_dump_register_ctrl_put +* @kcontrol - pointer to the snd_kcontrol structure +* @ . +* +* This functions sets the playback device. +*/ +static int u8500_dump_register_ctrl_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *uinfo) +{ + u8500_acodec_chip_t *chip = + (u8500_acodec_chip_t *) snd_kcontrol_chip(kcontrol); + int changed = 0; + t_ab8500_codec_error error; + + if (RENDERING_PENDING == uinfo->value.enumerated.item[0]) { + return changed; + } + if (chip->burst_fifo_mode != uinfo->value.enumerated.item[0]) { + chip->burst_fifo_mode = uinfo->value.enumerated.item[0]; + //u8500_acodec_set_burst_mode_fifo(chip->burst_fifo_mode); + } + + chip->fm_playback_mode = uinfo->value.enumerated.item[1]; + chip->fm_tx_mode = uinfo->value.enumerated.item[2]; + + changed = 1; + + return changed; +} + +#endif /* DUMP REGISTER CONTROL */ + +/* Hardware description , this structure (struct snd_pcm_hardware ) + * contains the definitions of the fundamental hardware configuration. + * This configuration will be applied on the runtime structure + */ +static struct snd_pcm_hardware snd_u8500_playback_hw = { + .info = + (SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_RESUME | SNDRV_PCM_INFO_PAUSE), + .formats = + SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE | + SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_U16_BE | + SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_U24_LE | + SNDRV_PCM_FMTBIT_S24_BE | SNDRV_PCM_FMTBIT_U24_BE | + SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_U32_LE | + SNDRV_PCM_FMTBIT_S32_BE | SNDRV_PCM_FMTBIT_U32_BE, + .rates = SNDRV_PCM_RATE_KNOT, + .rate_min = MIN_RATE_PLAYBACK, + .rate_max = MAX_RATE_PLAYBACK, + .channels_min = 1, + .channels_max = 8, + .buffer_bytes_max = NMDK_BUFFER_SIZE, + .period_bytes_min = 128, + .period_bytes_max = PAGE_SIZE, + .periods_min = NMDK_BUFFER_SIZE / PAGE_SIZE, + .periods_max = NMDK_BUFFER_SIZE / 128 +}; + +static struct snd_pcm_hardware snd_u8500_capture_hw = { + .info = + (SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_RESUME | SNDRV_PCM_INFO_PAUSE), + .formats = + SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE | + SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_U16_BE | + SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_U24_LE | + SNDRV_PCM_FMTBIT_S24_BE | SNDRV_PCM_FMTBIT_U24_BE | + SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_U32_LE | + SNDRV_PCM_FMTBIT_S32_BE | SNDRV_PCM_FMTBIT_U32_BE, + .rates = SNDRV_PCM_RATE_KNOT, + .rate_min = MIN_RATE_CAPTURE, + .rate_max = MAX_RATE_CAPTURE, + .channels_min = 1, + .channels_max = 8, + .buffer_bytes_max = NMDK_BUFFER_SIZE, + .period_bytes_min = 128, + .period_bytes_max = PAGE_SIZE, + .periods_min = NMDK_BUFFER_SIZE / PAGE_SIZE, + .periods_max = NMDK_BUFFER_SIZE / 128 +}; + +static struct snd_pcm_hw_constraint_list constraints_rate = { + .count = sizeof(u8500_acodec_rates) / sizeof(u8500_acodec_rates[0]), + .list = u8500_acodec_rates, + .mask = 0, +}; + +/** + * snd_u8500_alsa_pcm_close + * @substream - pointer to the playback/capture substream structure + * + * This routine is used by alsa framework to close a pcm stream . + * Here a dma pipe is disabled and freed. + */ +static int snd_u8500_alsa_pcm_close(struct snd_pcm_substream *substream) +{ + int stream_id, error = 0; + u8500_acodec_chip_t *chip = snd_pcm_substream_chip(substream); + audio_stream_t *ptr_audio_stream = NULL; + + stream_id = substream->pstr->stream; + ptr_audio_stream = &chip->stream[ALSA_PCM_DEV][stream_id]; + + if (ENABLE == chip->direct_rendering_mode) { + ptr_audio_stream->substream = NULL; + return 0; + } else { + stm_close_alsa(chip, ALSA_PCM_DEV, stream_id); + + /* reset the different variables to default */ + + ptr_audio_stream->active = 0; + ptr_audio_stream->period = 0; + ptr_audio_stream->periods = 0; + ptr_audio_stream->old_offset = 0; + ptr_audio_stream->substream = NULL; + if (!(--active_user)) { + /* Disable the MSP1 */ + error = u8500_acodec_unsetuser(USER_ALSA); + u8500_acodec_close(I2S_CLIENT_MSP1, ACODEC_DISABLE_ALL); + } else { + if (stream_id == SNDRV_PCM_STREAM_PLAYBACK) + u8500_acodec_close(I2S_CLIENT_MSP1, + ACODEC_DISABLE_TRANSMIT); + else if (stream_id == SNDRV_PCM_STREAM_CAPTURE) + u8500_acodec_close(I2S_CLIENT_MSP1, + ACODEC_DISABLE_RECEIVE); + } + + stm_hw_free(substream); + + return error; + } +} + +void my_write(u32 address, u8 data) +{ + ab8500_write(AB8500_AUDIO, address, data); +} + +void dsp_configure_audio_codec(void) +{ + //4500 config for both record DMIC1&2 and playback HS stereo + //data width is 16 bits + + my_write(0x200, 0x02); // Start-up audio unreset + my_write(0x20B, 0x10); // Start-up audio clk audio enable + my_write(0x383, 0x06); // Start-up audio Vaudio supply + + my_write(0xD00, 0x88); // General power up=0x88 + my_write(0xD01, 0x00); // Software Reset=0x0 + my_write(0xD02, 0xC0); // Digital AD Channels Enable=0xC0 + my_write(0xD03, 0xC0); // Digital DA Channels Enable=0xC0 + my_write(0xD04, 0x00); // Low Power and Conf=0x0 + my_write(0xD05, 0x0F); // Line in Conf=0xF + my_write(0xD06, 0xC0); // Analog Inputs Enable=0xC0 + my_write(0xD07, 0x30); // ADC Enable=0x30 + my_write(0xD08, 0x30); // Analog Output Enable=0x30 + my_write(0xD09, 0x30); // Digital Output Enable=0x30 + my_write(0xD0A, 0x4F); // Mute Enable=0x4F + my_write(0xD0B, 0x7F); // Short Circuit Disable=0x7F + my_write(0xD0C, 0x80); // Power-up for Headset=0x80 + my_write(0xD0D, 0x00); // Envelope Threshold=0x0 + my_write(0xD0E, 0x00); // Envelope Decay Time=0x0 + my_write(0xD0F, 0xF0); // Class-D Configuration=0xF0 + my_write(0xD10, 0x32); // PWM VIBNL Configuration=0x32 + my_write(0xD11, 0x32); // PWM VIBPL Configuration=0x32 + my_write(0xD12, 0x32); // PWM VIBNR Configuration=0x32 + my_write(0xD13, 0x32); // PWM VIBPR Configuration=0x32 + my_write(0xD14, 0x00); // Microphone 1 Gain=0x0 + my_write(0xD15, 0x00); // Microphone 2 Gain=0x0 + my_write(0xD16, 0x00); // Left line-in and HS Analog Gain=0x0 + my_write(0xD17, 0x00); // Right line-in and HS Analog Gain=0x0 + my_write(0xD18, 0x1F); // Line-in to HSL Gain=0x1F + my_write(0xD19, 0x1F); // Line-in to HSR Gain=0x1F + my_write(0xD1A, 0xF0); // AD Channel Filters Configuration=0xF0 + my_write(0xD1B, 0x85); // TDM Configuration 1=0x85 + my_write(0xD1C, 0x94); // TDM Configuration 2=0x94 + my_write(0xD1D, 0x02); // TDM loopback control=0x2 + my_write(0xD1E, 0x00); // TDM format=0x0 + my_write(0xD1F, 0x10); // AD Data allocation in Slot 0 to 1=0x10 + my_write(0xD20, 0xCC); // AD Data allocation in Slot 2 to 3=0xCC + my_write(0xD21, 0xCC); // AD Data allocation in Slots 4 to 5=0xCC + my_write(0xD22, 0xCC); // AD Data allocation in Slots 6 to 7=0xCC + my_write(0xD23, 0xCC); // AD Data allocation in Slots 8 to 9=0xCC + my_write(0xD24, 0xCC); // AD Data allocation in Slots 10 to 11=0xCC + my_write(0xD25, 0xCC); // AD Data allocation in Slots 12 to 13=0xCC + my_write(0xD26, 0xCC); // AD Data allocation in Slots 14 to 15=0xCC + my_write(0xD27, 0xCC); // AD Data allocation in Slots 16 to 17=0xCC + my_write(0xD28, 0xCC); // AD Data allocation in Slots 18 to 19=0xCC + my_write(0xD29, 0xCC); // AD Data allocation in Slots 20 to 21=0xCC + my_write(0xD2A, 0xCC); // AD Data allocation in Slots 22 to 23=0xCC + my_write(0xD2B, 0xCC); // AD Data allocation in Slots 24 to 25=0xCC + my_write(0xD2C, 0xCC); // AD Data allocation in Slots 26 to 27=0xCC + my_write(0xD2D, 0xCC); // AD Data allocation in Slots 28 to 29=0xCC + my_write(0xD2E, 0xCC); // AD Data allocation in Slots 30 to 31=0xCC + my_write(0xD2F, 0x00); // AD slot 0/7 tristate=0x0 + my_write(0xD30, 0x00); // AD slot 8/15 tristate=0x0 + my_write(0xD31, 0x00); // AD slot 16/23 tristate=0x0 + my_write(0xD32, 0x00); // AD slot 24/31 tristate=0x0 + my_write(0xD33, 0x08); // Slots selection for DA path 1=0x8 + my_write(0xD34, 0x09); // Slots selection for DA path 2=0x9 + my_write(0xD35, 0x00); // Slots selection for DA path 3=0x0 + my_write(0xD36, 0x00); // Slots selection for DA path 4=0x0 + my_write(0xD37, 0x00); // Slots selection for DA path 5=0x0 + my_write(0xD38, 0x00); // Slots selection for DA path 6=0x0 + my_write(0xD39, 0x00); // IRQ mask lsb=0x0 + my_write(0xD3A, 0x00); // IRQ status lsb=0x0 + my_write(0xD3B, 0x00); // IRQ mask msb=0x0 + my_write(0xD3C, 0x00); // IRQ status msb=0x0 + my_write(0xD3D, 0x00); // Fade speed=0x0 + my_write(0xD3E, 0x00); // DMIC decimator filter=0x0 + my_write(0xD3F, 0xF0); // muxing lsb=0xF0 + my_write(0xD40, 0x00); // muxing msb=0x0 + my_write(0xD41, 0x1F); // AD1 Digital Gain=0x1F + my_write(0xD42, 0x1F); // AD2 Digital Gain=0x1F + my_write(0xD43, 0x1F); // AD3 Digital Gain=0x1F + my_write(0xD44, 0x1F); // AD4 Digital Gain=0x1F + my_write(0xD45, 0x1F); // AD5 Digital Gain=0x1F + my_write(0xD46, 0x1F); // AD6 Digital Gain=0x1F + my_write(0xD47, 0x00); // DA1 digital Gain=0x00 + my_write(0xD48, 0x00); // DA2 digital Gain=0x00 + my_write(0xD49, 0x3F); // DA3 digital Gain=0x3F + my_write(0xD4A, 0x3F); // DA4 digital Gain=0x3F + my_write(0xD4B, 0x3F); // DA5 digital Gain=0x3F + my_write(0xD4C, 0x3F); // DA6 digital Gain=0x3F + my_write(0xD4D, 0x3F); // AD1 loopback to HFL digital gain=0x3F + my_write(0xD4E, 0x3F); // AD2 loopback to HFR digital gain=0x3F + my_write(0xD4F, 0x08); // HSL and EAR digital gain=0x8 + my_write(0xD50, 0x08); // HSR digital gain=0x8 + my_write(0xD51, 0x1F); // Side tone FIR1 gain=0x1F + my_write(0xD52, 0x1F); // Side tone FIR2 gain=0x1F + my_write(0xD53, 0x00); // ANC filter control=0x0 + my_write(0xD54, 0x00); // ANC Warped Delay Line Shift=0x0 + my_write(0xD55, 0x00); // ANC FIR output Shift=0x0 + my_write(0xD56, 0x00); // ANC IIR output Shift=0x0 + my_write(0xD57, 0x00); // ANC FIR coefficients msb=0x0 + my_write(0xD58, 0x00); // ANC FIR coefficients lsb=0x0 + my_write(0xD59, 0x00); // ANC IIR coefficients msb=0x0 + my_write(0xD5A, 0x00); // ANC IIR coefficients lsb=0x0 + my_write(0xD5B, 0x00); // ANC Warp delay msb=0x0 + my_write(0xD5C, 0x00); // ANC Warp delay lsb=0x0 + my_write(0xD5D, 0x00); // ANC FIR peak register MSB=0x0 + my_write(0xD5E, 0x00); // ANC FIR peak register LSB=0x0 + my_write(0xD5F, 0x00); // ANC IIR peak register. MSB part=0x0 + my_write(0xD60, 0x00); // ANC IIR peak register. LSB part=0x0 + my_write(0xD61, 0x00); // Side tone FIR address=0x0 + my_write(0xD62, 0x00); // Side tone FIR coefficient MSB=0x0 + my_write(0xD63, 0x00); // Side tone FIR coefficient LSB=0x0 + my_write(0xD64, 0x00); // Filters control=0x0 + my_write(0xD65, 0x00); // Class D EMI Control=0x0 + my_write(0xD66, 0x00); // Class D control path=0x0 + my_write(0xD67, 0x00); // Class D control gain=0x0 + my_write(0xD68, 0x00); // Burst FIFO int control=0x0 + my_write(0xD69, 0x00); // Burst FIFO length=0x0 + my_write(0xD6A, 0x00); // Burst FIFO control=0x0 + my_write(0xD6B, 0x00); // Burst FIFO switch frame=0x0 + my_write(0xD6C, 0x00); // Burst FIFO wake up delay=0x0 + my_write(0xD6D, 0x00); // Burst FIFO samples number=0x0 + my_write(0xD70, 0x00); // CR112=0x0 + my_write(0xD71, 0x04); // CR113=0x4 + my_write(0xD72, 0x00); // CR114=0x0 + my_write(0xD73, 0x00); // CR115=0x0 + my_write(0xD74, 0x00); // CR116=0x0 + my_write(0xD75, 0x00); // CR117=0x0 + my_write(0xD76, 0x00); // CR118=0x0 + my_write(0xD77, 0x00); // CR119=0x0 + my_write(0xD78, 0x00); // CR120=0x0 + my_write(0xD79, 0x00); // CR121=0x0 + my_write(0xD7A, 0x00); // CR122=0x0 + my_write(0xD7B, 0x00); // CR123=0x0 +} + +static int configure_direct_rendering(struct snd_pcm_substream *substream) +{ + int error = 0, stream_id; + int status = 0; + struct snd_pcm_runtime *runtime = substream->runtime; + u8500_acodec_chip_t *chip = snd_pcm_substream_chip(substream); + audio_stream_t *ptr_audio_stream = NULL; + + stream_id = substream->pstr->stream; + + if (stream_id == SNDRV_PCM_STREAM_PLAYBACK) { + runtime->hw = snd_u8500_playback_hw; + } else { + runtime->hw = snd_u8500_capture_hw; + } + + writel(0x0, ((char *)(IO_ADDRESS(U8500_MSP1_BASE) + 0x04))); //MSP_GCR + + writel(0x0, ((char *)(IO_ADDRESS(U8500_MSP1_BASE) + 0x08))); //MSP + writel(0x0, ((char *)(IO_ADDRESS(U8500_MSP1_BASE) + 0x0C))); //MSP + writel(0x0, ((char *)(IO_ADDRESS(U8500_MSP1_BASE) + 0x10))); //MSP + + writel(0x0, ((char *)(IO_ADDRESS(U8500_MSP1_BASE) + 0x30))); //MSP + writel(0x0, ((char *)(IO_ADDRESS(U8500_MSP1_BASE) + 0x34))); //MSP + writel(0x0, ((char *)(IO_ADDRESS(U8500_MSP1_BASE) + 0x38))); //MSP + + writel(0x0, ((char *)(IO_ADDRESS(U8500_MSP1_BASE) + 0x40))); //MSP + writel(0x0, ((char *)(IO_ADDRESS(U8500_MSP1_BASE) + 0x44))); //MSP + writel(0x0, ((char *)(IO_ADDRESS(U8500_MSP1_BASE) + 0x48))); //MSP + writel(0x0, ((char *)(IO_ADDRESS(U8500_MSP1_BASE) + 0x4C))); //MSP + + writel(0x0, ((char *)(IO_ADDRESS(U8500_MSP1_BASE) + 0x60))); //MSP + writel(0x0, ((char *)(IO_ADDRESS(U8500_MSP1_BASE) + 0x64))); //MSP + writel(0x0, ((char *)(IO_ADDRESS(U8500_MSP1_BASE) + 0x68))); //MSP + writel(0x0, ((char *)(IO_ADDRESS(U8500_MSP1_BASE) + 0x6C))); //MSP + + writel(0x0, ((char *)(IO_ADDRESS(U8500_MSP1_BASE) + 0x18))); //MSP + writel(0x0, ((char *)(IO_ADDRESS(U8500_MSP1_BASE) + 0x20))); //MSP + writel(0x0, ((char *)(IO_ADDRESS(U8500_MSP1_BASE) + 0x2C))); //MSP + + dsp_configure_audio_codec(); + +#if DRIVER_DEBUG > 0 + { + dump_msp_registers(); + dump_acodec_registers(); + } +#endif + + ptr_audio_stream = &chip->stream[ALSA_PCM_DEV][stream_id]; + + ptr_audio_stream->substream = substream; + + FUNC_EXIT(); + return 0; +} + +/** + * snd_u8500_alsa_pcm_open + * @substream - pointer to the playback/capture substream structure + * + * This routine is used by alsa framework to open a pcm stream . + * Here a dma pipe is requested and device is configured(default). + */ +static int snd_u8500_alsa_pcm_open(struct snd_pcm_substream *substream) +{ + int error = 0, stream_id, status = 0; + u8500_acodec_chip_t *chip = snd_pcm_substream_chip(substream); + struct snd_pcm_runtime *runtime = substream->runtime; + audio_stream_t *ptr_audio_stream = NULL; + + FUNC_ENTER(); + + if (ENABLE == chip->direct_rendering_mode) { + configure_direct_rendering(substream); + return 0; + } else { + stream_id = substream->pstr->stream; + status = u8500_acodec_open(I2S_CLIENT_MSP1, stream_id); + + if (status) { + printk("failed in getting open\n"); + return -1; + } + + if (!active_user) + error = u8500_acodec_setuser(USER_ALSA); + if (error) + return error; + else + active_user++; + + error = + snd_pcm_hw_constraint_list(runtime, 0, + SNDRV_PCM_HW_PARAM_RATE, + &constraints_rate); + if (error < 0) { + stm_error + (": error initializing hw sample rate constraint\n"); + return error; + } + + /* configure the default sampling rate for the acodec */ + second_config = 0; + + if ((error = configure_rate(substream, ACODEC_CONFIG_REQUIRED))) + return error; + + /* Set the hardware configuration */ + stream_id = substream->pstr->stream; + if (stream_id == SNDRV_PCM_STREAM_PLAYBACK) { + runtime->hw = snd_u8500_playback_hw; + /* configure the output sink for the acodec */ + if ((error = + u8500_acodec_select_output(chip->output_device, + USER_ALSA, + chip->tdm8_ch_mode))) { + stm_error(" : select output failed\n"); + return error; + } + + /* configure the volume settings for the acodec */ + if ((error = + u8500_acodec_set_output_volume(chip->output_device, + chip-> + output_lvolume, + chip-> + output_rvolume, + USER_ALSA))) { + stm_error(" : set output volume failed\n"); + return error; + } + } else { + runtime->hw = snd_u8500_capture_hw; + /* configure the input source for the acodec */ + if ((error = + u8500_acodec_select_input(chip->input_device, + USER_ALSA, + chip->tdm8_ch_mode))) { + stm_error(" : select input failed\n"); + return error; + } + /*u8500_acodec_set_src_power_cntrl(AB8500_CODEC_SRC_D_MICROPHONE_1,ENABLE); + u8500_acodec_set_src_power_cntrl(AB8500_CODEC_SRC_D_MICROPHONE_2,ENABLE); + + u8500_acodec_set_input_volume(AB8500_CODEC_SRC_D_MICROPHONE_1, + chip->input_lvolume, + chip->input_rvolume, + USER_ALSA); + + u8500_acodec_set_input_volume(AB8500_CODEC_SRC_D_MICROPHONE_2, + chip->input_lvolume, + chip->input_rvolume, + USER_ALSA); + */ + + if ((error = + u8500_acodec_set_input_volume(chip->input_device, + chip->input_lvolume, + chip->input_rvolume, + USER_ALSA))) { + stm_error(" : set input volume failed\n"); + return error; + } + } + + u8500_acodec_set_burst_mode_fifo(chip->burst_fifo_mode); + +#if DRIVER_DEBUG > 0 + { + dump_msp_registers(); + dump_acodec_registers(); + } +#endif + + ptr_audio_stream = &chip->stream[ALSA_PCM_DEV][stream_id]; + + ptr_audio_stream->substream = substream; + + if (DISABLE == chip->direct_rendering_mode) { + stm_config_hw(chip, substream, ALSA_PCM_DEV, stream_id); + } + sema_init(&(ptr_audio_stream->alsa_sem), 1); + init_completion(&(ptr_audio_stream->alsa_com)); + ptr_audio_stream->state = ALSA_STATE_UNPAUSE; + + FUNC_EXIT(); + return 0; + } +} + +/** + * snd_u8500_alsa_pcm_hw_params + * @substream - pointer to the playback/capture substream structure + * @hw_params - specifies the hw parameters like format/no of channels etc + * + * This routine is used by alsa framework to allocate a dma buffer + * used to transfer the data from user space to kernel space + * + */ +static int snd_u8500_alsa_pcm_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *hw_params) +{ + return snd_pcm_lib_malloc_pages(substream, + params_buffer_bytes(hw_params)); +} + +/** + * snd_u8500_alsa_pcm_hw_free + * @substream - pointer to the playback/capture substream structure + * + * This routine is used by alsa framework to deallocate a dma buffer + * allocated berfore by snd_u8500_alsa_pcm_hw_params + */ +static int snd_u8500_alsa_pcm_hw_free(struct snd_pcm_substream *substream) +{ + stm_hw_free(substream); + return 0; +} + +/** + * snd_u8500_alsa_pcm_prepare + * @substream - pointer to the playback/capture substream structure + * + * This callback is called whene the pcm is "prepared" Here is possible + * to set the format type ,sample rate ,etc.The callback is called as + * well everytime a recovery after an underrun happens. + */ + +static int snd_u8500_alsa_pcm_prepare(struct snd_pcm_substream *substream) +{ + u8500_acodec_chip_t *chip = snd_pcm_substream_chip(substream); + struct snd_pcm_runtime *runtime = substream->runtime; + int error, stream_id; + + FUNC_ENTER(); + + if (chip->freq != runtime->rate || chip->channels != runtime->channels) { + stm_dbg(DBG_ST.alsa, " freq not same, %d %d\n", chip->freq, + runtime->rate); + stm_dbg(DBG_ST.alsa, " channels not same, %d %d\n", + chip->channels, runtime->channels); + if (chip->channels != runtime->channels) { + chip->channels = runtime->channels; + if ((error = + stm_config_hw(chip, substream, ALSA_PCM_DEV, + -1))) { + stm_dbg(DBG_ST.alsa, + "In func %s, stm_config_hw fails", + __FUNCTION__); + return error; + } + } + chip->freq = runtime->rate; + second_config = 1; + stream_id = substream->pstr->stream; + if (stream_id == SNDRV_PCM_STREAM_PLAYBACK) + u8500_acodec_close(I2S_CLIENT_MSP1, + ACODEC_DISABLE_TRANSMIT); + else if (stream_id == SNDRV_PCM_STREAM_CAPTURE) + u8500_acodec_close(I2S_CLIENT_MSP1, + ACODEC_DISABLE_RECEIVE); + + error = u8500_acodec_open(I2S_CLIENT_MSP1, stream_id); + if (error) { + printk("failed in getting open\n"); + return -1; + } + if ((error = + configure_rate(substream, ACODEC_CONFIG_NOT_REQUIRED))) { + stm_dbg(DBG_ST.alsa, "In func %s, configure_rate fails", + __FUNCTION__); + return error; + } + } + + FUNC_EXIT(); + return 0; +} + +/** + * snd_u8500_alsa_pcm_trigger + * @substream - pointer to the playback/capture substream structure + * @cmd - specifies the command : start/stop/pause/resume + * + * This callback is called whene the pcm is started ,stopped or paused + * The action is specified in the second argument, SND_PCM_TRIGGER_XXX in + * <sound/pcm.h>. + * This callback is atomic and the interrupts are disabled , so you can't + * call other functions that need interrupts without possible risks + */ +static int snd_u8500_alsa_pcm_trigger(struct snd_pcm_substream *substream, + int cmd) +{ + int stream_id = substream->pstr->stream; + audio_stream_t *stream = NULL; + u8500_acodec_chip_t *chip = snd_pcm_substream_chip(substream); + int error = 0; + + FUNC_ENTER(); + + stream = &chip->stream[ALSA_PCM_DEV][stream_id]; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + /* Start the pcm engine */ + stm_dbg(DBG_ST.alsa, " TRIGGER START\n"); + if (stream->active == 0) { + stream->active = 1; + stm_trigger_alsa(stream); + break; + } + stm_error(": H/w is busy\n"); + return -EINVAL; + + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + stm_dbg(DBG_ST.alsa, " SNDRV_PCM_TRIGGER_PAUSE_PUSH\n"); + if (stream->active == 1) { + stm_pause_alsa(stream); + } + break; + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + stm_dbg(DBG_ST.alsa, " SNDRV_PCM_TRIGGER_PAUSE_RELEASE\n"); + if (stream->active == 1) + stm_unpause_alsa(stream); + break; + case SNDRV_PCM_TRIGGER_STOP: + /* Stop the pcm engine */ + stm_dbg(DBG_ST.alsa, " TRIGGER STOP\n"); + if (stream->active == 1) + stm_stop_alsa(stream); + break; + default: + stm_error(": invalid command in pcm trigger\n"); + return -EINVAL; + } + + FUNC_EXIT(); + return error; +} + +/** + * snd_u8500_alsa_pcm_pointer + * @substream - pointer to the playback/capture substream structure + * + * This callback is called whene the pcm middle layer inquires the current + * hardware position on the buffer .The position is returned in frames + * ranged from 0 to buffer_size -1 + */ +static snd_pcm_uframes_t snd_u8500_alsa_pcm_pointer(struct snd_pcm_substream + *substream) +{ + unsigned int offset; + u8500_acodec_chip_t *chip = snd_pcm_substream_chip(substream); + audio_stream_t *stream = + &chip->stream[ALSA_PCM_DEV][substream->pstr->stream]; + struct snd_pcm_runtime *runtime = stream->substream->runtime; + + offset = bytes_to_frames(runtime, stream->old_offset); + if (offset < 0 || stream->old_offset < 0) + stm_dbg(DBG_ST.alsa, " Offset=%i %i\n", offset, + stream->old_offset); + + return offset; +} + +static struct snd_pcm_ops snd_u8500_alsa_playback_ops = { + .open = snd_u8500_alsa_pcm_open, + .close = snd_u8500_alsa_pcm_close, + .ioctl = snd_pcm_lib_ioctl, + .hw_params = snd_u8500_alsa_pcm_hw_params, + .hw_free = snd_u8500_alsa_pcm_hw_free, + .prepare = snd_u8500_alsa_pcm_prepare, + .trigger = snd_u8500_alsa_pcm_trigger, + .pointer = snd_u8500_alsa_pcm_pointer, +}; + +static struct snd_pcm_ops snd_u8500_alsa_capture_ops = { + .open = snd_u8500_alsa_pcm_open, + .close = snd_u8500_alsa_pcm_close, + .ioctl = snd_pcm_lib_ioctl, + .hw_params = snd_u8500_alsa_pcm_hw_params, + .hw_free = snd_u8500_alsa_pcm_hw_free, + .prepare = snd_u8500_alsa_pcm_prepare, + .trigger = snd_u8500_alsa_pcm_trigger, + .pointer = snd_u8500_alsa_pcm_pointer, +}; + +#ifdef CONFIG_U8500_ACODEC_POLL + +/** +* u8500_alsa_pio_start +* @stream - pointer to the playback/capture audio_stream_t structure +* +* This function sends/receive one chunck of stream data to/from MSP +*/ +static void u8500_alsa_pio_start(audio_stream_t * stream) +{ + unsigned int offset, dma_size, stream_id; + int ret_val; + struct snd_pcm_substream *substream = stream->substream; + struct snd_pcm_runtime *runtime = substream->runtime; + stream_id = substream->pstr->stream; + + FUNC_ENTER(); + dma_size = frames_to_bytes(runtime, runtime->period_size); + offset = dma_size * stream->period; + stream->old_offset = offset; + + stm_dbg(DBG_ST.alsa, " Transfer started\n"); + stm_dbg(DBG_ST.alsa, " address = %x size=%d\n", + (runtime->dma_addr + offset), dma_size); + + /* Send our stuff */ + if (stream_id == SNDRV_PCM_STREAM_PLAYBACK) +#ifdef CONFIG_U8500_ACODEC_DMA + u8500_acodec_send_data(I2S_CLIENT_MSP1, + (void *)(runtime->dma_addr + offset), + dma_size, 1); +#else + u8500_acodec_send_data(I2S_CLIENT_MSP1, + (void *)(runtime->dma_area + offset), + dma_size, 0); +#endif + else +#ifdef CONFIG_U8500_ACODEC_DMA + u8500_acodec_receive_data(I2S_CLIENT_MSP1, + (void *)(runtime->dma_addr + offset), + dma_size, 1); +#else + u8500_acodec_receive_data(I2S_CLIENT_MSP1, + (void *)(runtime->dma_area + offset), + dma_size, 0); +#endif + + stream->period++; + stream->period %= runtime->periods; + stream->periods++; + + FUNC_EXIT(); + +} + +/** +* acodec_feeding_thread +* @data - void pointer to the playback/capture audio_stream_t structure +* +* This thread sends/receive data to MSP while stream is active +*/ +static int acodec_feeding_thread(void *data) +{ + audio_stream_t *stream = (audio_stream_t *) data; + + FUNC_ENTER(); + daemonize("acodec_feeding_thread"); + allow_signal(SIGKILL); + down(&stream->alsa_sem); + + while ((!signal_pending(current)) && (stream->active)) { + if (stream->state == ALSA_STATE_PAUSE) + wait_for_completion(&(stream->alsa_com)); + + u8500_alsa_pio_start(stream); + if (stream->substream) + snd_pcm_period_elapsed(stream->substream); + } + + up(&stream->alsa_sem); + + FUNC_EXIT(); + return 0; +} + +/** +* acodec_feeding_thread +* @stream - pointer to the playback/capture audio_stream_t structure +* +* This function creates a kernel thread . +*/ + +int spawn_acodec_feeding_thread(audio_stream_t * stream) +{ + pid_t pid; + + FUNC_ENTER(); + + pid = + kernel_thread(acodec_feeding_thread, stream, + CLONE_FS | CLONE_SIGHAND); + + FUNC_EXIT(); + return 0; +} +#endif + +/** + * dma_eot_handler + * @data - pointer to structure set in the dma callback handler + * + * This is the PCM tasklet handler linked to a pipe, its role is to tell + * the PCM middler layer whene the buffer position goes across the prescribed + * period size.To inform of this the snd_pcm_period_elapsed is called. + * + * this callback will be called in case of DMA_EVENT_TC only + */ +static void dma_eot_handler(void *data) +{ + audio_stream_t *stream = data; + + /* snd_pcm_period_elapsed() is _not_ to be protected + */ + stm_dbg(DBG_ST.alsa, + "One transfer complete.. going to start the next one\n"); + + if (stream->substream) + snd_pcm_period_elapsed(stream->substream); + if (stream->state == ALSA_STATE_PAUSE) + return; + if (stream->active == 1) { + u8500_alsa_dma_start(stream); + } +} + +/** + * u8500_alsa_dma_start - used to transmit or recive a dma chunk + * @stream - specifies the playback/record stream structure + */ +void u8500_alsa_dma_start(audio_stream_t * stream) +{ + unsigned int offset, dma_size, stream_id; + + struct snd_pcm_substream *substream = stream->substream; + struct snd_pcm_runtime *runtime = substream->runtime; + u8500_acodec_chip_t *u8500_chip = NULL; + stream_id = substream->pstr->stream; + u8500_chip = snd_pcm_substream_chip(substream); + + dma_size = frames_to_bytes(runtime, runtime->period_size); + offset = dma_size * stream->period; + stream->old_offset = offset; + + if (stream_id == SNDRV_PCM_STREAM_PLAYBACK) +#ifdef CONFIG_U8500_ACODEC_DMA + u8500_acodec_send_data(I2S_CLIENT_MSP1, + (void *)(runtime->dma_addr + offset), + dma_size, 1); +#else + u8500_acodec_send_data(I2S_CLIENT_MSP1, + (void *)(runtime->dma_area + offset), + dma_size, 0); +#endif + else +#ifdef CONFIG_U8500_ACODEC_DMA + u8500_acodec_receive_data(I2S_CLIENT_MSP1, + (void *)(runtime->dma_addr + offset), + dma_size, 1); +#else + u8500_acodec_receive_data(I2S_CLIENT_MSP1, + (void *)(runtime->dma_area + offset), + dma_size, 0); +#endif + + stm_dbg(DBG_ST.alsa, " DMA Transfer started\n"); + stm_dbg(DBG_ST.alsa, " address = %x size=%d\n", + (runtime->dma_addr + offset), dma_size); + + stream->period++; + stream->period %= runtime->periods; + stream->periods++; +} + +/** +* u8500_audio_init +* @chip - pointer to u8500_acodec_chip_t structure. +* +* This function intialises the u8500 chip structure with default values +*/ +static void u8500_audio_init(u8500_acodec_chip_t * chip) +{ + audio_stream_t *ptr_audio_stream = NULL; + + ptr_audio_stream = + &chip->stream[ALSA_PCM_DEV][SNDRV_PCM_STREAM_PLAYBACK]; + /* Setup DMA stuff */ + strlcpy(ptr_audio_stream->id, "u8500 playback", + sizeof(ptr_audio_stream->id)); + ptr_audio_stream->stream_id = SNDRV_PCM_STREAM_PLAYBACK; + + /* default initialization for playback */ + ptr_audio_stream->active = 0; + ptr_audio_stream->period = 0; + ptr_audio_stream->periods = 0; + ptr_audio_stream->old_offset = 0; + + ptr_audio_stream = + &chip->stream[ALSA_PCM_DEV][SNDRV_PCM_STREAM_CAPTURE]; + strlcpy(ptr_audio_stream->id, "u8500 capture", + sizeof(ptr_audio_stream->id)); + ptr_audio_stream->stream_id = SNDRV_PCM_STREAM_CAPTURE; + + /* default initialization for capture */ + ptr_audio_stream->active = 0; + ptr_audio_stream->period = 0; + ptr_audio_stream->periods = 0; + ptr_audio_stream->old_offset = 0; + + chip->freq = DEFAULT_SAMPLE_RATE; + chip->channels = 1; + chip->input_lvolume = DEFAULT_GAIN; + chip->input_rvolume = DEFAULT_GAIN; + chip->output_lvolume = DEFAULT_VOLUME; + chip->output_rvolume = DEFAULT_VOLUME; + chip->output_device = DEFAULT_OUTPUT_DEVICE; + chip->input_device = DEFAULT_INPUT_DEVICE; + chip->analog_lpbk = DEFAULT_LOOPBACK_STATE; + chip->digital_lpbk = DEFAULT_LOOPBACK_STATE; + chip->playback_switch = DEFAULT_SWITCH_STATE; + chip->capture_switch = DEFAULT_SWITCH_STATE; + chip->tdm8_ch_mode = DEFAULT_TDM8_CH_MODE_STATE; + chip->direct_rendering_mode = DEFAULT_DIRECT_RENDERING_STATE; + chip->burst_fifo_mode = DEFAULT_BURST_FIFO_STATE; + chip->fm_playback_mode = DEFAULT_FM_PLAYBACK_STATE; + chip->fm_tx_mode = DEFAULT_FM_TX_STATE; + + //HDMI Default params set + chip->hdmi_params.sampling_freq = 48000; + chip->hdmi_params.channel_count = 2; +} + +/** + * snd_card_u8500_alsa_pcm_new - constructor for a new pcm cmponent + * @chip - pointer to chip specific data + * @device - specifies the card number + */ +static int snd_card_u8500_alsa_pcm_new(u8500_acodec_chip_t * chip, int device) +{ + struct snd_pcm *pcm; + int err; + + if ((err = snd_pcm_new(chip->card, "u8500", device, 1, 1, &pcm)) < 0) { + stm_error(": error in snd_pcm_new\n"); + return err; + } + + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, + &snd_u8500_alsa_playback_ops); + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, + &snd_u8500_alsa_capture_ops); + + pcm->private_data = chip; + pcm->info_flags = 0; + chip->pcm = pcm; + strcpy(pcm->name, "u8500_alsa"); + + u8500_audio_init(pcm->private_data); + return 0; +} + +static int u8500_register_alsa_controls(struct snd_card *card, + u8500_acodec_chip_t * u8500_chip) +{ + int error; + + if ((error = + snd_ctl_add(card, + snd_ctl_new1(&u8500_playback_vol_ctrl, + u8500_chip))) < 0) { + stm_error + (": error initializing u8500_playback_vol_ctrl interface \n\n"); + return (-1); + } + + if ((error = + snd_ctl_add(card, + snd_ctl_new1(&u8500_capture_vol_ctrl, + u8500_chip))) < 0) { + stm_error + (": error initializing u8500_capture_vol_ctrl interface \n\n"); + return (-1); + } + + if ((error = + snd_ctl_add(card, + snd_ctl_new1(&u8500_playback_sink_ctrl, + u8500_chip))) < 0) { + stm_error(": error initializing playback ctrl interface \n\n"); + return (-1); + } + + if ((error = + snd_ctl_add(card, + snd_ctl_new1(&u8500_capture_src_ctrl, + u8500_chip))) < 0) { + stm_error + (": error initializing u8500_playback_sink_ctrl interface \n\n"); + return (-1); + } + + if ((error = + snd_ctl_add(card, + snd_ctl_new1(&u8500_analog_lpbk_ctrl, + u8500_chip))) < 0) { + stm_error + (": error initializing u8500_analog_lpbk_ctrl interface \n\n"); + return (-1); + } + + if ((error = + snd_ctl_add(card, + snd_ctl_new1(&u8500_digital_lpbk_ctrl, + u8500_chip))) < 0) { + stm_error + (": error initializing u8500_digital_lpbk_ctrl interface \n\n"); + return (-1); + } + + if ((error = + snd_ctl_add(card, + snd_ctl_new1(&u8500_playback_switch_ctrl, + u8500_chip))) < 0) { + stm_error + (": error initializing u8500_playback_switch_ctrl interface \n\n"); + return (-1); + } + + if ((error = + snd_ctl_add(card, + snd_ctl_new1(&u8500_capture_switch_ctrl, + u8500_chip))) < 0) { + stm_error + (": error initializing u8500_capture_switch_ctrl interface \n\n"); + return (-1); + } + + if ((error = + snd_ctl_add(card, + snd_ctl_new1(&u8500_playback_power_ctrl, + u8500_chip))) < 0) { + stm_error + (": error initializing u8500_playback_power_ctrl interface \n\n"); + return (-1); + } + + if ((error = + snd_ctl_add(card, + snd_ctl_new1(&u8500_capture_power_ctrl, + u8500_chip))) < 0) { + stm_error + (": error initializing u8500_capture_power_ctrl interface \n\n"); + return (-1); + } + + if ((error = + snd_ctl_add(card, + snd_ctl_new1(&u8500_tdm_mode_ctrl, u8500_chip))) < 0) { + stm_error + (": error initializing u8500_tdm_mode_ctrl interface \n\n"); + return (-1); + } + + if ((error = + snd_ctl_add(card, + snd_ctl_new1(&u8500_direct_rendering_mode_ctrl, + u8500_chip))) < 0) { + stm_error + (": error initializing u8500_direct_rendering_mode_ctrl interface \n\n"); + return (-1); + } + + if ((error = + snd_ctl_add(card, + snd_ctl_new1(&u8500_pcm_rendering_mode_ctrl, + u8500_chip))) < 0) { + stm_error + (": error initializing u8500_pcm_rendering_mode_ctrl interface \n\n"); + return (-1); + } + + return 0; +} + +static int __init u8500_alsa_probe(struct platform_device *devptr) +{ + //static int card_count=0; + int error; + struct snd_card *card, *hdmi_card; + u8500_acodec_chip_t *u8500_chip; + + /*Set currently active users to 0 */ + active_user = 0; + + error = snd_card_create(0, NULL, THIS_MODULE, sizeof(u8500_acodec_chip_t), &card); + if (error < 0) { + stm_error(": error in snd_card_create\n"); + return error; + } + + u8500_chip = (u8500_acodec_chip_t *) card->private_data; + u8500_chip->card = card; + + if ((error = snd_card_u8500_alsa_pcm_new(u8500_chip, 0)) < 0) { + stm_error(": pcm interface can't be initialized\n\n"); + goto nodev; + } + + if ((error = snd_card_u8500_alsa_hdmi_new(u8500_chip, 1)) < 0) { + stm_error(": alsa HDMI interface can't be initialized\n\n"); + goto nodev; + } + + if (u8500_register_alsa_controls(card, u8500_chip) < 0) { + goto nodev; + } + + if (u8500_register_alsa_hdmi_controls(card, u8500_chip) < 0) { + goto nodev; + } +#if 0 + ///////////////////////////////$ H D M I $////////////////////////////////////// + + if (card_count == 1) { + hdmi_card = + snd_card_new(1, NULL, THIS_MODULE, + sizeof(u8500_acodec_chip_t)); + if (hdmi_card == NULL) { + stm_error(": error in hdmi - snd_card_new\n"); + return -ENOMEM; + } + + u8500_chip = (u8500_acodec_chip_t *) hdmi_card->private_data; + u8500_chip->card = hdmi_card; + + if ((error = snd_card_u8500_alsa_hdmi_new(u8500_chip, 0)) < 0) { + stm_error + (": alsa HDMI interface can't be initialized\n\n"); + goto nodev; + } + + if (u8500_register_alsa_hdmi_controls(card, u8500_chip) < 0) { + goto nodev; + } + } +#endif //////////////////////////////////////////////////////// + + /*char driver[16]; driver name + char shortname[32]; short name of this soundcard + char longname[80]; name of this soundcard + char mixername[80]; mixer name + char components[80]; card components delimited withspace */ + + strcpy(card->driver, "u8500 alsa"); + strcpy(card->shortname, "u8500 alsa pcm hdmi driver"); + strcpy(card->longname, "u8500 alsa pcm hdmi driver"); + + snd_card_set_dev(card, &devptr->dev); + + if ((error = snd_card_register(card)) == 0) { + stm_info("u8500 audio <hdmi> support running..\n"); + platform_set_drvdata(devptr, card); + return 0; + } + + nodev: + snd_card_free(card); + return error; +} + +static int __devexit u8500_alsa_remove(struct platform_device *devptr) +{ + snd_card_free(platform_get_drvdata(devptr)); + platform_set_drvdata(devptr, NULL); + stm_info("u8500 audio support stopped\n"); + + /*Set currently active users to 0 */ + active_user = 0; + + return 0; +} + +static struct platform_driver u8500_alsa_driver = { + .probe = u8500_alsa_probe, + .remove = __devexit_p(u8500_alsa_remove), + .driver = { + .name = U8500_ALSA_DRIVER, + }, +}; + +/** +* u8500_alsa_init - Entry function of AB8500 alsa driver +* +* This function registers u8500 alsa driver with linux framework +*/ +static int __init u8500_alsa_init(void) +{ + int err; + + if ((err = platform_driver_register(&u8500_alsa_driver)) < 0) + return err; + device = + platform_device_register_simple(U8500_ALSA_DRIVER, -1, NULL, 0); + if (IS_ERR(device)) { + platform_driver_unregister(&u8500_alsa_driver); + return PTR_ERR(device); + } + //DBG_ST.acodec = 1; + //DBG_ST.alsa = 1; + + return 0; +} + +static void __exit u8500_alsa_exit(void) +{ + platform_device_unregister(device); + platform_driver_unregister(&u8500_alsa_driver); +} + +module_init(u8500_alsa_init); +module_exit(u8500_alsa_exit); + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("AB8500 ALSA driver"); |