From acd47100914b2896d0699febefd077f85c4dd272 Mon Sep 17 00:00:00 2001 From: Krzysztof Helt Date: Thu, 1 Oct 2009 00:10:34 +0200 Subject: ALSA: sscape: convert to firmware loader framework The conversion solves the problem that firmware size was set to 64KB while non PnP cards have 128KB firmware files. An additional firmware initialization code has been moved from the OSS driver. Signed-off-by: Krzysztof Helt Signed-off-by: Takashi Iwai --- include/sound/sscape_ioctl.h | 21 --------------------- 1 file changed, 21 deletions(-) delete mode 100644 include/sound/sscape_ioctl.h (limited to 'include') diff --git a/include/sound/sscape_ioctl.h b/include/sound/sscape_ioctl.h deleted file mode 100644 index 0d8885969c64..000000000000 --- a/include/sound/sscape_ioctl.h +++ /dev/null @@ -1,21 +0,0 @@ -#ifndef SSCAPE_IOCTL_H -#define SSCAPE_IOCTL_H - - -struct sscape_bootblock -{ - unsigned char code[256]; - unsigned version; -}; - -#define SSCAPE_MICROCODE_SIZE 65536 - -struct sscape_microcode -{ - unsigned char __user *code; -}; - -#define SND_SSCAPE_LOAD_BOOTB _IOWR('P', 100, struct sscape_bootblock) -#define SND_SSCAPE_LOAD_MCODE _IOW ('P', 101, struct sscape_microcode) - -#endif -- cgit v1.2.3 From 7c824f4b69316df55fe243c5a6c7dba2b62285c1 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Fri, 2 Oct 2009 07:22:58 +0200 Subject: ALSA: sscape - Remove sscap_ioctl.h from include/sound/Kbuild Signed-off-by: Takashi Iwai --- include/sound/Kbuild | 1 - 1 file changed, 1 deletion(-) (limited to 'include') diff --git a/include/sound/Kbuild b/include/sound/Kbuild index fd054a344324..e9dd9369ecb9 100644 --- a/include/sound/Kbuild +++ b/include/sound/Kbuild @@ -2,7 +2,6 @@ header-y += asound_fm.h header-y += hdsp.h header-y += hdspm.h header-y += sfnt_info.h -header-y += sscape_ioctl.h unifdef-y += asequencer.h unifdef-y += asound.h -- cgit v1.2.3 From 9dcaa7b25f2c8f6a0485854cd3641f585a154072 Mon Sep 17 00:00:00 2001 From: Rafael Ignacio Zurita Date: Tue, 3 Nov 2009 17:16:27 -0300 Subject: ALSA: sh: add SuperH DAC audio driver for ALSA V4 This is a port of the sound/oss/sh_dac_audio.c driver. The driver uses an on-chip 8-bit D/A converter, which has a speaker connected to one of its channels, found in several ancient HP machines. For interrupts it uses a high-resolution timer (hrtimer). Tested on SH7709 based hp6xx (HP Jornada 680/690 and HP Palmtop 620lx/660lx). Also, since OSS Emulation works, the old OSS sound/oss/sh_dac_audio.c driver would be obsolete soon, and it could be removed. Signed-off-by: Rafael Ignacio Zurita Acked-by: Paul Mundt Signed-off-by: Takashi Iwai --- arch/sh/boards/mach-hp6xx/setup.c | 55 ++++ arch/sh/include/mach-common/mach/hp6xx.h | 4 + include/sound/sh_dac_audio.h | 21 ++ sound/sh/Kconfig | 8 + sound/sh/Makefile | 2 + sound/sh/sh_dac_audio.c | 453 +++++++++++++++++++++++++++++++ 6 files changed, 543 insertions(+) create mode 100644 include/sound/sh_dac_audio.h create mode 100644 sound/sh/sh_dac_audio.c (limited to 'include') diff --git a/arch/sh/boards/mach-hp6xx/setup.c b/arch/sh/boards/mach-hp6xx/setup.c index 8f305b36358b..e6dd5e96321e 100644 --- a/arch/sh/boards/mach-hp6xx/setup.c +++ b/arch/sh/boards/mach-hp6xx/setup.c @@ -13,6 +13,7 @@ #include #include #include +#include #include #include #include @@ -51,9 +52,63 @@ static struct platform_device jornadakbd_device = { .id = -1, }; +static void dac_audio_start(struct dac_audio_pdata *pdata) +{ + u16 v; + u8 v8; + + /* HP Jornada 680/690 speaker on */ + v = inw(HD64461_GPADR); + v &= ~HD64461_GPADR_SPEAKER; + outw(v, HD64461_GPADR); + + /* HP Palmtop 620lx/660lx speaker on */ + v8 = inb(PKDR); + v8 &= ~PKDR_SPEAKER; + outb(v8, PKDR); + + sh_dac_enable(pdata->channel); +} + +static void dac_audio_stop(struct dac_audio_pdata *pdata) +{ + u16 v; + u8 v8; + + /* HP Jornada 680/690 speaker off */ + v = inw(HD64461_GPADR); + v |= HD64461_GPADR_SPEAKER; + outw(v, HD64461_GPADR); + + /* HP Palmtop 620lx/660lx speaker off */ + v8 = inb(PKDR); + v8 |= PKDR_SPEAKER; + outb(v8, PKDR); + + sh_dac_output(0, pdata->channel); + sh_dac_disable(pdata->channel); +} + +static struct dac_audio_pdata dac_audio_platform_data = { + .buffer_size = 64000, + .channel = 1, + .start = dac_audio_start, + .stop = dac_audio_stop, +}; + +static struct platform_device dac_audio_device = { + .name = "dac_audio", + .id = -1, + .dev = { + .platform_data = &dac_audio_platform_data, + } + +}; + static struct platform_device *hp6xx_devices[] __initdata = { &cf_ide_device, &jornadakbd_device, + &dac_audio_device, }; static void __init hp6xx_init_irq(void) diff --git a/arch/sh/include/mach-common/mach/hp6xx.h b/arch/sh/include/mach-common/mach/hp6xx.h index 0d4165a32dcd..bcc301ac12f4 100644 --- a/arch/sh/include/mach-common/mach/hp6xx.h +++ b/arch/sh/include/mach-common/mach/hp6xx.h @@ -29,6 +29,9 @@ #define PKDR_LED_GREEN 0x10 +/* HP Palmtop 620lx/660lx speaker on/off */ +#define PKDR_SPEAKER 0x20 + #define SCPDR_TS_SCAN_ENABLE 0x20 #define SCPDR_TS_SCAN_Y 0x02 #define SCPDR_TS_SCAN_X 0x01 @@ -42,6 +45,7 @@ #define ADC_CHANNEL_BACKUP 4 #define ADC_CHANNEL_CHARGE 5 +/* HP Jornada 680/690 speaker on/off */ #define HD64461_GPADR_SPEAKER 0x01 #define HD64461_GPADR_PCMCIA0 (0x02|0x08) diff --git a/include/sound/sh_dac_audio.h b/include/sound/sh_dac_audio.h new file mode 100644 index 000000000000..f5deaf1ddb9f --- /dev/null +++ b/include/sound/sh_dac_audio.h @@ -0,0 +1,21 @@ +/* + * SH_DAC specific configuration, for the dac_audio platform_device + * + * Copyright (C) 2009 Rafael Ignacio Zurita + * + * 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. + */ + +#ifndef __INCLUDE_SH_DAC_AUDIO_H +#define __INCLUDE_SH_DAC_AUDIO_H + +struct dac_audio_pdata { + int buffer_size; + int channel; + void (*start)(struct dac_audio_pdata *pd); + void (*stop)(struct dac_audio_pdata *pd); +}; + +#endif /* __INCLUDE_SH_DAC_AUDIO_H */ diff --git a/sound/sh/Kconfig b/sound/sh/Kconfig index aed0f90c3919..61139f3c1614 100644 --- a/sound/sh/Kconfig +++ b/sound/sh/Kconfig @@ -19,5 +19,13 @@ config SND_AICA help ALSA Sound driver for the SEGA Dreamcast console. +config SND_SH_DAC_AUDIO + tristate "SuperH DAC audio support" + depends on SND + depends on CPU_SH3 && HIGH_RES_TIMERS + select SND_PCM + help + Say Y here to include support for the on-chip DAC. + endif # SND_SUPERH diff --git a/sound/sh/Makefile b/sound/sh/Makefile index 8fdcb6e26f00..7d09b5188cf7 100644 --- a/sound/sh/Makefile +++ b/sound/sh/Makefile @@ -3,6 +3,8 @@ # snd-aica-objs := aica.o +snd-sh_dac_audio-objs := sh_dac_audio.o # Toplevel Module Dependency obj-$(CONFIG_SND_AICA) += snd-aica.o +obj-$(CONFIG_SND_SH_DAC_AUDIO) += snd-sh_dac_audio.o diff --git a/sound/sh/sh_dac_audio.c b/sound/sh/sh_dac_audio.c new file mode 100644 index 000000000000..76d9ad27d91c --- /dev/null +++ b/sound/sh/sh_dac_audio.c @@ -0,0 +1,453 @@ +/* + * sh_dac_audio.c - SuperH DAC audio driver for ALSA + * + * Copyright (c) 2009 by Rafael Ignacio Zurita + * + * + * Based on sh_dac_audio.c (Copyright (C) 2004, 2005 by Andriy Skulysh) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +MODULE_AUTHOR("Rafael Ignacio Zurita "); +MODULE_DESCRIPTION("SuperH DAC audio driver"); +MODULE_LICENSE("GPL"); +MODULE_SUPPORTED_DEVICE("{{SuperH DAC audio support}}"); + +/* Module Parameters */ +static int index = SNDRV_DEFAULT_IDX1; +static char *id = SNDRV_DEFAULT_STR1; +module_param(index, int, 0444); +MODULE_PARM_DESC(index, "Index value for SuperH DAC audio."); +module_param(id, charp, 0444); +MODULE_PARM_DESC(id, "ID string for SuperH DAC audio."); + +/* main struct */ +struct snd_sh_dac { + struct snd_card *card; + struct snd_pcm_substream *substream; + struct hrtimer hrtimer; + ktime_t wakeups_per_second; + + int rate; + int empty; + char *data_buffer, *buffer_begin, *buffer_end; + int processed; /* bytes proccesed, to compare with period_size */ + int buffer_size; + struct dac_audio_pdata *pdata; +}; + + +static void dac_audio_start_timer(struct snd_sh_dac *chip) +{ + hrtimer_start(&chip->hrtimer, chip->wakeups_per_second, + HRTIMER_MODE_REL); +} + +static void dac_audio_stop_timer(struct snd_sh_dac *chip) +{ + hrtimer_cancel(&chip->hrtimer); +} + +static void dac_audio_reset(struct snd_sh_dac *chip) +{ + dac_audio_stop_timer(chip); + chip->buffer_begin = chip->buffer_end = chip->data_buffer; + chip->processed = 0; + chip->empty = 1; +} + +static void dac_audio_set_rate(struct snd_sh_dac *chip) +{ + chip->wakeups_per_second = ktime_set(0, 1000000000 / chip->rate); +} + + +/* PCM INTERFACE */ + +static struct snd_pcm_hardware snd_sh_dac_pcm_hw = { + .info = (SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_MMAP_VALID | + SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_HALF_DUPLEX), + .formats = SNDRV_PCM_FMTBIT_U8, + .rates = SNDRV_PCM_RATE_8000, + .rate_min = 8000, + .rate_max = 8000, + .channels_min = 1, + .channels_max = 1, + .buffer_bytes_max = (48*1024), + .period_bytes_min = 1, + .period_bytes_max = (48*1024), + .periods_min = 1, + .periods_max = 1024, +}; + +static int snd_sh_dac_pcm_open(struct snd_pcm_substream *substream) +{ + struct snd_sh_dac *chip = snd_pcm_substream_chip(substream); + struct snd_pcm_runtime *runtime = substream->runtime; + + runtime->hw = snd_sh_dac_pcm_hw; + + chip->substream = substream; + chip->buffer_begin = chip->buffer_end = chip->data_buffer; + chip->processed = 0; + chip->empty = 1; + + chip->pdata->start(chip->pdata); + + return 0; +} + +static int snd_sh_dac_pcm_close(struct snd_pcm_substream *substream) +{ + struct snd_sh_dac *chip = snd_pcm_substream_chip(substream); + + chip->substream = NULL; + + dac_audio_stop_timer(chip); + chip->pdata->stop(chip->pdata); + + return 0; +} + +static int snd_sh_dac_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)); +} + +static int snd_sh_dac_pcm_hw_free(struct snd_pcm_substream *substream) +{ + return snd_pcm_lib_free_pages(substream); +} + +static int snd_sh_dac_pcm_prepare(struct snd_pcm_substream *substream) +{ + struct snd_sh_dac *chip = snd_pcm_substream_chip(substream); + struct snd_pcm_runtime *runtime = chip->substream->runtime; + + chip->buffer_size = runtime->buffer_size; + memset(chip->data_buffer, 0, chip->pdata->buffer_size); + + return 0; +} + +static int snd_sh_dac_pcm_trigger(struct snd_pcm_substream *substream, int cmd) +{ + struct snd_sh_dac *chip = snd_pcm_substream_chip(substream); + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + dac_audio_start_timer(chip); + break; + case SNDRV_PCM_TRIGGER_STOP: + chip->buffer_begin = chip->buffer_end = chip->data_buffer; + chip->processed = 0; + chip->empty = 1; + dac_audio_stop_timer(chip); + break; + default: + return -EINVAL; + } + + return 0; +} + +static int snd_sh_dac_pcm_copy(struct snd_pcm_substream *substream, int channel, + snd_pcm_uframes_t pos, void __user *src, snd_pcm_uframes_t count) +{ + /* channel is not used (interleaved data) */ + struct snd_sh_dac *chip = snd_pcm_substream_chip(substream); + struct snd_pcm_runtime *runtime = substream->runtime; + ssize_t b_count = frames_to_bytes(runtime , count); + ssize_t b_pos = frames_to_bytes(runtime , pos); + + if (count < 0) + return -EINVAL; + + if (!count) + return 0; + + memcpy_toio(chip->data_buffer + b_pos, src, b_count); + chip->buffer_end = chip->data_buffer + b_pos + b_count; + + if (chip->empty) { + chip->empty = 0; + dac_audio_start_timer(chip); + } + + return 0; +} + +static int snd_sh_dac_pcm_silence(struct snd_pcm_substream *substream, + int channel, snd_pcm_uframes_t pos, + snd_pcm_uframes_t count) +{ + /* channel is not used (interleaved data) */ + struct snd_sh_dac *chip = snd_pcm_substream_chip(substream); + struct snd_pcm_runtime *runtime = substream->runtime; + ssize_t b_count = frames_to_bytes(runtime , count); + ssize_t b_pos = frames_to_bytes(runtime , pos); + + if (count < 0) + return -EINVAL; + + if (!count) + return 0; + + memset_io(chip->data_buffer + b_pos, 0, b_count); + chip->buffer_end = chip->data_buffer + b_pos + b_count; + + if (chip->empty) { + chip->empty = 0; + dac_audio_start_timer(chip); + } + + return 0; +} + +static +snd_pcm_uframes_t snd_sh_dac_pcm_pointer(struct snd_pcm_substream *substream) +{ + struct snd_sh_dac *chip = snd_pcm_substream_chip(substream); + int pointer = chip->buffer_begin - chip->data_buffer; + + return pointer; +} + +/* pcm ops */ +static struct snd_pcm_ops snd_sh_dac_pcm_ops = { + .open = snd_sh_dac_pcm_open, + .close = snd_sh_dac_pcm_close, + .ioctl = snd_pcm_lib_ioctl, + .hw_params = snd_sh_dac_pcm_hw_params, + .hw_free = snd_sh_dac_pcm_hw_free, + .prepare = snd_sh_dac_pcm_prepare, + .trigger = snd_sh_dac_pcm_trigger, + .pointer = snd_sh_dac_pcm_pointer, + .copy = snd_sh_dac_pcm_copy, + .silence = snd_sh_dac_pcm_silence, + .mmap = snd_pcm_lib_mmap_iomem, +}; + +static int __devinit snd_sh_dac_pcm(struct snd_sh_dac *chip, int device) +{ + int err; + struct snd_pcm *pcm; + + /* device should be always 0 for us */ + err = snd_pcm_new(chip->card, "SH_DAC PCM", device, 1, 0, &pcm); + if (err < 0) + return err; + + pcm->private_data = chip; + strcpy(pcm->name, "SH_DAC PCM"); + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_sh_dac_pcm_ops); + + /* buffer size=48K */ + snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_CONTINUOUS, + snd_dma_continuous_data(GFP_KERNEL), + 48 * 1024, + 48 * 1024); + + return 0; +} +/* END OF PCM INTERFACE */ + + +/* driver .remove -- destructor */ +static int snd_sh_dac_remove(struct platform_device *devptr) +{ + snd_card_free(platform_get_drvdata(devptr)); + platform_set_drvdata(devptr, NULL); + + return 0; +} + +/* free -- it has been defined by create */ +static int snd_sh_dac_free(struct snd_sh_dac *chip) +{ + /* release the data */ + kfree(chip->data_buffer); + kfree(chip); + + return 0; +} + +static int snd_sh_dac_dev_free(struct snd_device *device) +{ + struct snd_sh_dac *chip = device->device_data; + + return snd_sh_dac_free(chip); +} + +static enum hrtimer_restart sh_dac_audio_timer(struct hrtimer *handle) +{ + struct snd_sh_dac *chip = container_of(handle, struct snd_sh_dac, + hrtimer); + struct snd_pcm_runtime *runtime = chip->substream->runtime; + ssize_t b_ps = frames_to_bytes(runtime, runtime->period_size); + + if (!chip->empty) { + sh_dac_output(*chip->buffer_begin, chip->pdata->channel); + chip->buffer_begin++; + + chip->processed++; + if (chip->processed >= b_ps) { + chip->processed -= b_ps; + snd_pcm_period_elapsed(chip->substream); + } + + if (chip->buffer_begin == (chip->data_buffer + + chip->buffer_size - 1)) + chip->buffer_begin = chip->data_buffer; + + if (chip->buffer_begin == chip->buffer_end) + chip->empty = 1; + + } + + if (!chip->empty) + hrtimer_start(&chip->hrtimer, chip->wakeups_per_second, + HRTIMER_MODE_REL); + + return HRTIMER_NORESTART; +} + +/* create -- chip-specific constructor for the cards components */ +static int __devinit snd_sh_dac_create(struct snd_card *card, + struct platform_device *devptr, + struct snd_sh_dac **rchip) +{ + struct snd_sh_dac *chip; + int err; + + static struct snd_device_ops ops = { + .dev_free = snd_sh_dac_dev_free, + }; + + *rchip = NULL; + + chip = kzalloc(sizeof(*chip), GFP_KERNEL); + if (chip == NULL) + return -ENOMEM; + + chip->card = card; + + hrtimer_init(&chip->hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); + chip->hrtimer.function = sh_dac_audio_timer; + + dac_audio_reset(chip); + chip->rate = 8000; + dac_audio_set_rate(chip); + + chip->pdata = devptr->dev.platform_data; + + chip->data_buffer = kmalloc(chip->pdata->buffer_size, GFP_KERNEL); + if (chip->data_buffer == NULL) { + kfree(chip); + return -ENOMEM; + } + + err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops); + if (err < 0) { + snd_sh_dac_free(chip); + return err; + } + + *rchip = chip; + + return 0; +} + +/* driver .probe -- constructor */ +static int __devinit snd_sh_dac_probe(struct platform_device *devptr) +{ + struct snd_sh_dac *chip; + struct snd_card *card; + int err; + + err = snd_card_create(index, id, THIS_MODULE, 0, &card); + if (err < 0) { + snd_printk(KERN_ERR "cannot allocate the card\n"); + return err; + } + + err = snd_sh_dac_create(card, devptr, &chip); + if (err < 0) + goto probe_error; + + err = snd_sh_dac_pcm(chip, 0); + if (err < 0) + goto probe_error; + + strcpy(card->driver, "snd_sh_dac"); + strcpy(card->shortname, "SuperH DAC audio driver"); + printk(KERN_INFO "%s %s", card->longname, card->shortname); + + err = snd_card_register(card); + if (err < 0) + goto probe_error; + + snd_printk("ALSA driver for SuperH DAC audio"); + + platform_set_drvdata(devptr, card); + return 0; + +probe_error: + snd_card_free(card); + return err; +} + +/* + * "driver" definition + */ +static struct platform_driver driver = { + .probe = snd_sh_dac_probe, + .remove = snd_sh_dac_remove, + .driver = { + .name = "dac_audio", + }, +}; + +static int __init sh_dac_init(void) +{ + return platform_driver_register(&driver); +} + +static void __exit sh_dac_exit(void) +{ + platform_driver_unregister(&driver); +} + +module_init(sh_dac_init); +module_exit(sh_dac_exit); -- cgit v1.2.3