diff options
Diffstat (limited to 'packages/linux/gumstix-kernel-2.6.21/gumstix-asoc.patch')
| -rw-r--r-- | packages/linux/gumstix-kernel-2.6.21/gumstix-asoc.patch | 224 |
1 files changed, 224 insertions, 0 deletions
diff --git a/packages/linux/gumstix-kernel-2.6.21/gumstix-asoc.patch b/packages/linux/gumstix-kernel-2.6.21/gumstix-asoc.patch new file mode 100644 index 0000000000..48e64b5764 --- /dev/null +++ b/packages/linux/gumstix-kernel-2.6.21/gumstix-asoc.patch @@ -0,0 +1,224 @@ +Index: linux-2.6.21gum/sound/soc/pxa/Kconfig +=================================================================== +--- linux-2.6.21gum.orig/sound/soc/pxa/Kconfig ++++ linux-2.6.21gum/sound/soc/pxa/Kconfig +@@ -16,6 +16,7 @@ config SND_PXA2XX_SOC_AC97 + tristate + select AC97_BUS + select SND_SOC_AC97_BUS ++ select SND_PXA2XX_AC97 + + config SND_PXA2XX_SOC_I2S + tristate +@@ -56,4 +57,12 @@ config SND_PXA2XX_SOC_TOSA + Say Y if you want to add support for SoC audio on Sharp + Zaurus SL-C6000x models (Tosa). + ++config SND_PXA2XX_SOC_GUMSTIX ++ tristate "SoC AC97 Audio support for Gumstix" ++ depends on SND_PXA2XX_SOC && ARCH_GUMSTIX ++ select SND_PXA2XX_SOC_AC97 ++ select SND_SOC_AC97_CODEC ++ help ++ Say Y if you want to add support for SoC audio on Gumstix ++ + endmenu +Index: linux-2.6.21gum/sound/soc/pxa/Makefile +=================================================================== +--- linux-2.6.21gum.orig/sound/soc/pxa/Makefile ++++ linux-2.6.21gum/sound/soc/pxa/Makefile +@@ -12,9 +12,11 @@ snd-soc-corgi-objs := corgi.o + snd-soc-poodle-objs := poodle.o + snd-soc-tosa-objs := tosa.o + snd-soc-spitz-objs := spitz.o ++snd-soc-gumstix-objs := gumstix.o + + obj-$(CONFIG_SND_PXA2XX_SOC_CORGI) += snd-soc-corgi.o + obj-$(CONFIG_SND_PXA2XX_SOC_POODLE) += snd-soc-poodle.o + obj-$(CONFIG_SND_PXA2XX_SOC_TOSA) += snd-soc-tosa.o + obj-$(CONFIG_SND_PXA2XX_SOC_SPITZ) += snd-soc-spitz.o ++obj-$(CONFIG_SND_PXA2XX_SOC_GUMSTIX) += snd-soc-gumstix.o + +Index: linux-2.6.21gum/sound/soc/pxa/gumstix.c +=================================================================== +--- /dev/null ++++ linux-2.6.21gum/sound/soc/pxa/gumstix.c +@@ -0,0 +1,109 @@ ++/* ++ * gumstix.c -- SoC audio for Gumstix ++ * ++ * Copyright 2005 Wolfson Microelectronics PLC. ++ * Copyright 2005 Openedhand Ltd. ++ * Copyright 2007 Gumstix Inc. ++ * ++ * Authors: Liam Girdwood <liam.girdwood@wolfsonmicro.com> ++ * Richard Purdie <richard@openedhand.com> ++ * Craig Hughes <craig@gumstix.com> ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License as published by the ++ * Free Software Foundation; either version 2 of the License, or (at your ++ * option) any later version. ++ * ++ * Revision history ++ * 26 April 2007 - Initial revision forked from tosa.c ++ * ++ * ++ */ ++ ++#include <linux/module.h> ++#include <linux/moduleparam.h> ++#include <linux/device.h> ++ ++#include <sound/driver.h> ++#include <sound/core.h> ++#include <sound/pcm.h> ++#include <sound/soc.h> ++#include <sound/soc-dapm.h> ++ ++#include <asm/mach-types.h> ++#include <asm/arch/pxa-regs.h> ++#include <asm/arch/hardware.h> ++#include <asm/arch/audio.h> ++#include <asm/arch/gumstix.h> ++ ++#include "pxa2xx-pcm.h" ++#include "pxa2xx-ac97.h" ++#include "../codecs/ac97.h" ++ ++static struct snd_soc_machine gumstix; ++ ++static int gumstix_ac97_init(struct snd_soc_codec *codec) ++{ ++ // For now, do nothing -- should move the ucb1400 patch stuff here ++ return 0; ++} ++ ++/* For right now, just add UCB1400 -- once that's working, we can also add ++ * PCM channels via SPI to bluetooth module, GSM module, or whatnot */ ++static struct snd_soc_dai_link gumstix_dai[] = { ++{ ++ .name = "ucb1400", ++ .stream_name = "UCB1400", ++ .cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_HIFI], ++ .codec_dai = &ac97_dai, ++ .init = gumstix_ac97_init, ++}, ++}; ++ ++static struct snd_soc_machine snd_soc_machine_gumstix = { ++ .name = "Gumstix", ++ .dai_link = gumstix_dai, ++ .num_links = ARRAY_SIZE(gumstix_dai), ++}; ++ ++static struct snd_soc_device gumstix_snd_devdata = { ++ .machine = &snd_soc_machine_gumstix, ++ .platform = &pxa2xx_soc_platform, ++ .codec_dev = &soc_codec_dev_ac97, ++}; ++ ++static struct platform_device *gumstix_snd_device; ++ ++static int __init gumstix_init(void) ++{ ++ int ret; ++ ++ if (!machine_is_gumstix()) ++ return -ENODEV; ++ ++ gumstix_snd_device = platform_device_alloc("soc-audio", -1); ++ if (!gumstix_snd_device) ++ return -ENOMEM; ++ ++ platform_set_drvdata(gumstix_snd_device, &gumstix_snd_devdata); ++ gumstix_snd_devdata.dev = &gumstix_snd_device->dev; ++ ret = platform_device_add(gumstix_snd_device); ++ ++ if (ret) ++ platform_device_put(gumstix_snd_device); ++ ++ return ret; ++} ++ ++static void __exit gumstix_exit(void) ++{ ++ platform_device_unregister(gumstix_snd_device); ++} ++ ++module_init(gumstix_init); ++module_exit(gumstix_exit); ++ ++/* Module information */ ++MODULE_AUTHOR("Craig Hughes <craig@gumstix.com>"); ++MODULE_DESCRIPTION("ALSA SoC Gumstix"); ++MODULE_LICENSE("GPL"); +Index: linux-2.6.21gum/sound/soc/codecs/ac97.c +=================================================================== +--- linux-2.6.21gum.orig/sound/soc/codecs/ac97.c ++++ linux-2.6.21gum/sound/soc/codecs/ac97.c +@@ -43,7 +43,7 @@ static int ac97_prepare(struct snd_pcm_s + #define STD_AC97_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\ + SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000) + +-static struct snd_soc_codec_dai ac97_dai = { ++struct snd_soc_codec_dai ac97_dai = { + .name = "AC97 HiFi", + .playback = { + .stream_name = "AC97 Playback", +@@ -61,6 +61,8 @@ static struct snd_soc_codec_dai ac97_dai + .prepare = ac97_prepare,}, + }; + ++EXPORT_SYMBOL_GPL(ac97_dai); ++ + static unsigned int ac97_read(struct snd_soc_codec *codec, + unsigned int reg) + { +Index: linux-2.6.21gum/sound/soc/codecs/ac97.h +=================================================================== +--- linux-2.6.21gum.orig/sound/soc/codecs/ac97.h ++++ linux-2.6.21gum/sound/soc/codecs/ac97.h +@@ -14,5 +14,6 @@ + #define __LINUX_SND_SOC_AC97_H + + extern struct snd_soc_codec_device soc_codec_dev_ac97; ++extern struct snd_soc_codec_dai ac97_dai; + + #endif +Index: linux-2.6.21gum/sound/soc/pxa/pxa2xx-ac97.c +=================================================================== +--- linux-2.6.21gum.orig/sound/soc/pxa/pxa2xx-ac97.c ++++ linux-2.6.21gum/sound/soc/pxa/pxa2xx-ac97.c +@@ -154,18 +154,26 @@ static void pxa2xx_ac97_warm_reset(struc + + static void pxa2xx_ac97_cold_reset(struct snd_ac97 *ac97) + { +- GCR &= GCR_COLD_RST; /* clear everything but nCRST */ +- GCR &= ~GCR_COLD_RST; /* then assert nCRST */ +- +- gsr_bits = 0; + #ifdef CONFIG_PXA27x + /* PXA27x Developers Manual section 13.5.2.2.1 */ ++ GCR |= GCR_ACLINK_OFF; ++ udelay(5); ++ GCR &= GCR_COLD_RST; /* Mask all interrupts */ ++ GCR &= ~GCR_COLD_RST; /* cold reset */ ++ udelay(5); + pxa_set_cken(1 << 31, 1); + udelay(5); +- pxa_set_cken(1 << 31, 0); ++ GCR |= GCR_PRIRDY_IEN|GCR_SECRDY_IEN; /* unmask the interrupts */ ++ pxa_set_cken(1 << 31, 0); /* clear CKEN31 */ ++ udelay(5); + GCR = GCR_COLD_RST; + udelay(50); ++ wait_event_timeout(gsr_wq, gsr_bits & (GSR_PCR | GSR_SCR), 1); + #else ++ GCR &= GCR_COLD_RST; /* clear everything but nCRST */ ++ GCR &= ~GCR_COLD_RST; /* then assert nCRST */ ++ ++ gsr_bits = 0; + GCR = GCR_COLD_RST; + GCR |= GCR_CDONE_IE|GCR_SDONE_IE; + wait_event_timeout(gsr_wq, gsr_bits & (GSR_PCR | GSR_SCR), 1); |