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/* * Audio support for HTC Magician * It uses PXA2xx i2Sound and UDA1380 modules * * Copyright (c) 2006 Philipp Zabel * * Based on: h2200_audio.c * Copyright (c) 2005 Giorgio Padrin giorgio@mandarinlogiq.org * Copyright (c) 2004,2005 Matthew Reimer * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */#include <linux/module.h>#include <linux/init.h>#include <linux/kernel.h>#include <linux/delay.h>#include <linux/interrupt.h>#include <linux/platform_device.h>#include <asm/hardware.h>#include <linux/pm.h>#include <asm/mach-types.h>#include <asm/arch/pxa-regs.h>#include <asm/arch/htcblueangel-gpio.h>#include <asm/arch/htcblueangel-asic.h>#include "pxa2xx-i2sound.h"#include <sound/uda1380.h>extern struct platform_device blueangel_asic3;static struct snd_uda1380 uda;static void snd_htcblueangel_audio_set_codec_power(int mode) { /* SET_HTCBLUEANGEL_GPIO(CODEC_ON, mode); */ }static void snd_htcblueangel_audio_set_codec_reset(int mode) { /* SET_HTCBLUEANGEL_GPIO(CODEC_RESET, mode); */ }static void snd_htcblueangel_audio_set_mic_power(int mode) { 	asic3_set_gpio_out_a(&blueangel_asic3.dev, GPIOA_MIC_PWR_ON, mode ? 1 << GPIOA_MIC_PWR_ON : 0);}static void snd_htcblueangel_audio_set_speaker_power(int mode) {	asic3_set_gpio_out_b(&blueangel_asic3.dev, GPIOB_SPK_PWR_ON, mode ? 1 << GPIOB_SPK_PWR_ON : 0);}static void snd_htcmagicican_audio_set_codec_reset(int mode) {	if (mode) {//		SET_HTCBLUEANGEL_GPIO(SPEAKER_ON, 1);//		SET_HTCBLUEANGEL_GPIO(TDA_MODE, 0);	/* Unmute the amplifier. */	} else {//		SET_HTCBLUEANGEL_GPIO(TDA_MODE, 1);//		SET_HTCBLUEANGEL_GPIO(SPEAKER_ON, 0);	/* Mute the amplifier. */	}}static inline int snd_htcblueangel_audio_hp_detect(void) {	//return GET_HTCBLUEANGEL_GPIO(HEADPHONE_IN) ? 1 : 0;	return 0;}static irqreturn_t snd_htcblueangel_audio_hp_isr(int isr, void *data, struct pt_regs *regs) {	snd_uda1380_hp_detected(&uda, snd_htcblueangel_audio_hp_detect());	return IRQ_HANDLED;}static void snd_htcblueangel_audio_hp_detection_on(void) {	unsigned long flags;/*	set_irq_type(IRQ_GPIO(GPIO_NR_HTCBLUEANGEL_HEADPHONE_IN), IRQT_BOTHEDGE);	request_irq(IRQ_GPIO(GPIO_NR_HTCBLUEANGEL_HEADPHONE_IN), snd_htcblueangel_audio_hp_isr,		    SA_INTERRUPT | SA_SAMPLE_RANDOM, "earphone jack", NULL);	local_irq_save(flags);	snd_uda1380_hp_detected(&uda, snd_htcblueangel_audio_hp_detect());	local_irq_restore(flags);*/}static void snd_htcblueangel_audio_hp_detection_off(void) {	//free_irq(IRQ_GPIO(GPIO_NR_HTCBLUEANGEL_HEADPHONE_IN), NULL);}static struct snd_uda1380 uda = {	.line_in_connected	= 0,	.mic_connected		= 1,	.hp_or_line_out		= 1,	.capture_source		= SND_UDA1380_CAP_SOURCE_MIC,	.power_on_chip		= snd_htcblueangel_audio_set_codec_power,	.reset_pin		= snd_htcblueangel_audio_set_codec_reset,	.line_out_on		= snd_htcblueangel_audio_set_speaker_power,	.mic_on			= snd_htcblueangel_audio_set_mic_power};static int snd_htcblueangel_audio_activate(void) {	/* UDA1380 at address 0x18 on PXA2xx I2C bus */	uda.i2c_client.adapter = i2c_get_adapter(0);	uda.i2c_client.addr = 0x18;	if (snd_uda1380_activate(&uda) == 0) {		snd_htcblueangel_audio_hp_detection_on();		return 0;	} else		return -1;}static void snd_htcblueangel_audio_deactivate(void) {	snd_htcblueangel_audio_hp_detection_off();	snd_uda1380_deactivate(&uda);}static int snd_htcblueangel_audio_open_stream(int stream)	{ return snd_uda1380_open_stream(&uda, stream); }static void snd_htcblueangel_audio_close_stream(int stream)	{ snd_uda1380_close_stream(&uda, stream); }static int snd_htcblueangel_audio_add_mixer_controls(struct snd_card *acard) {	return snd_uda1380_add_mixer_controls(&uda, acard);}#ifdef CONFIG_PMstatic int snd_htcblueangel_audio_suspend(pm_message_t state) {	snd_htcblueangel_audio_hp_detection_off();	snd_uda1380_suspend(&uda, state);	return 0;}static int snd_htcblueangel_audio_resume(void) {	snd_uda1380_resume(&uda);	snd_htcblueangel_audio_hp_detection_on();	return 0;}#endifstatic struct snd_pxa2xx_i2sound_board htcblueangel_audio = {	.name			= "magician Audio",	.desc			= "HTC Blueangel Audio [codec Philips UDA1380]",	.acard_id		= "Blueangel Audio",	.info			= SND_PXA2xx_I2SOUND_INFO_CLOCK_FROM_PXA |				  SND_PXA2xx_I2SOUND_INFO_CAN_CAPTURE,	.activate		= snd_htcblueangel_audio_activate,	.deactivate		= snd_htcblueangel_audio_deactivate,	.open_stream		= snd_htcblueangel_audio_open_stream,	.close_stream		= snd_htcblueangel_audio_close_stream,	.add_mixer_controls	= snd_htcblueangel_audio_add_mixer_controls,#ifdef CONFIG_PM	.suspend		= snd_htcblueangel_audio_suspend,	.resume			= snd_htcblueangel_audio_resume#endif};static int __init snd_htcblueangel_audio_init(void) {	/* check machine */	if (!machine_is_blueangel()) {		snd_printk(KERN_INFO "Module snd-htcblueangel_audio: not an HTC Blueangel!\n");		return -1;	}	request_module("i2c-pxa");	return snd_pxa2xx_i2sound_card_activate(&htcblueangel_audio);}static void __exit snd_htcblueangel_audio_exit(void) {	snd_pxa2xx_i2sound_card_deactivate();}module_init(snd_htcblueangel_audio_init);module_exit(snd_htcblueangel_audio_exit);MODULE_AUTHOR("Philipp Zabel, Giorgio Padrin, Matthew Reimer");MODULE_DESCRIPTION("Audio support for HTC Blueangel");MODULE_LICENSE("GPL");