![Jesper Juhl](/assets/img/avatar_default.png)
This patch cleans up duplicate includes in sound/ppc/ Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
1125 lines
28 KiB
C
1125 lines
28 KiB
C
/*
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* Audio support for PS3
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* Copyright (C) 2007 Sony Computer Entertainment Inc.
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* All rights reserved.
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* Copyright 2006, 2007 Sony Corporation
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; version 2 of the Licence.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <linux/init.h>
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#include <linux/slab.h>
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#include <linux/io.h>
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#include <linux/interrupt.h>
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#include <sound/driver.h>
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#include <sound/core.h>
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#include <sound/initval.h>
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#include <sound/pcm.h>
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#include <sound/asound.h>
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#include <sound/memalloc.h>
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#include <sound/pcm_params.h>
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#include <sound/control.h>
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#include <linux/dmapool.h>
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#include <linux/dma-mapping.h>
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#include <asm/firmware.h>
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#include <asm/dma.h>
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#include <asm/lv1call.h>
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#include <asm/ps3.h>
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#include <asm/ps3av.h>
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#include "snd_ps3_reg.h"
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#include "snd_ps3.h"
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MODULE_LICENSE("GPL v2");
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MODULE_DESCRIPTION("PS3 sound driver");
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MODULE_AUTHOR("Sony Computer Entertainment Inc.");
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/* module entries */
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static int __init snd_ps3_init(void);
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static void __exit snd_ps3_exit(void);
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/* ALSA snd driver ops */
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static int snd_ps3_pcm_open(struct snd_pcm_substream *substream);
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static int snd_ps3_pcm_close(struct snd_pcm_substream *substream);
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static int snd_ps3_pcm_prepare(struct snd_pcm_substream *substream);
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static int snd_ps3_pcm_trigger(struct snd_pcm_substream *substream,
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int cmd);
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static snd_pcm_uframes_t snd_ps3_pcm_pointer(struct snd_pcm_substream
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*substream);
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static int snd_ps3_pcm_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *hw_params);
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static int snd_ps3_pcm_hw_free(struct snd_pcm_substream *substream);
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/* ps3_system_bus_driver entries */
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static int __init snd_ps3_driver_probe(struct ps3_system_bus_device *dev);
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static int snd_ps3_driver_remove(struct ps3_system_bus_device *dev);
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/* address setup */
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static int snd_ps3_map_mmio(void);
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static void snd_ps3_unmap_mmio(void);
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static int snd_ps3_allocate_irq(void);
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static void snd_ps3_free_irq(void);
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static void snd_ps3_audio_set_base_addr(uint64_t ioaddr_start);
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/* interrupt handler */
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static irqreturn_t snd_ps3_interrupt(int irq, void *dev_id);
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/* set sampling rate/format */
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static int snd_ps3_set_avsetting(struct snd_pcm_substream *substream);
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/* take effect parameter change */
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static int snd_ps3_change_avsetting(struct snd_ps3_card_info *card);
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/* initialize avsetting and take it effect */
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static int snd_ps3_init_avsetting(struct snd_ps3_card_info *card);
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/* setup dma */
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static int snd_ps3_program_dma(struct snd_ps3_card_info *card,
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enum snd_ps3_dma_filltype filltype);
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static void snd_ps3_wait_for_dma_stop(struct snd_ps3_card_info *card);
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static dma_addr_t v_to_bus(struct snd_ps3_card_info *, void *vaddr, int ch);
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module_init(snd_ps3_init);
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module_exit(snd_ps3_exit);
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/*
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* global
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*/
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static struct snd_ps3_card_info the_card;
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static int snd_ps3_start_delay = CONFIG_SND_PS3_DEFAULT_START_DELAY;
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module_param_named(start_delay, snd_ps3_start_delay, uint, 0644);
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MODULE_PARM_DESC(start_delay, "time to insert silent data in milisec");
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static int index = SNDRV_DEFAULT_IDX1;
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static char *id = SNDRV_DEFAULT_STR1;
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module_param(index, int, 0444);
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MODULE_PARM_DESC(index, "Index value for PS3 soundchip.");
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module_param(id, charp, 0444);
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MODULE_PARM_DESC(id, "ID string for PS3 soundchip.");
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/*
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* PS3 audio register access
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*/
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static inline u32 read_reg(unsigned int reg)
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{
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return in_be32(the_card.mapped_mmio_vaddr + reg);
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}
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static inline void write_reg(unsigned int reg, u32 val)
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{
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out_be32(the_card.mapped_mmio_vaddr + reg, val);
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}
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static inline void update_reg(unsigned int reg, u32 or_val)
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{
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u32 newval = read_reg(reg) | or_val;
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write_reg(reg, newval);
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}
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static inline void update_mask_reg(unsigned int reg, u32 mask, u32 or_val)
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{
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u32 newval = (read_reg(reg) & mask) | or_val;
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write_reg(reg, newval);
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}
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/*
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* ALSA defs
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*/
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const static struct snd_pcm_hardware snd_ps3_pcm_hw = {
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.info = (SNDRV_PCM_INFO_MMAP |
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SNDRV_PCM_INFO_NONINTERLEAVED |
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SNDRV_PCM_INFO_MMAP_VALID),
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.formats = (SNDRV_PCM_FMTBIT_S16_BE |
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SNDRV_PCM_FMTBIT_S24_BE),
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.rates = (SNDRV_PCM_RATE_44100 |
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SNDRV_PCM_RATE_48000 |
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SNDRV_PCM_RATE_88200 |
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SNDRV_PCM_RATE_96000),
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.rate_min = 44100,
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.rate_max = 96000,
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.channels_min = 2, /* stereo only */
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.channels_max = 2,
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.buffer_bytes_max = PS3_AUDIO_FIFO_SIZE * 64,
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/* interrupt by four stages */
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.period_bytes_min = PS3_AUDIO_FIFO_STAGE_SIZE * 4,
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.period_bytes_max = PS3_AUDIO_FIFO_STAGE_SIZE * 4,
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.periods_min = 16,
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.periods_max = 32, /* buffer_size_max/ period_bytes_max */
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.fifo_size = PS3_AUDIO_FIFO_SIZE
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};
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static struct snd_pcm_ops snd_ps3_pcm_spdif_ops =
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{
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.open = snd_ps3_pcm_open,
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.close = snd_ps3_pcm_close,
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.prepare = snd_ps3_pcm_prepare,
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.ioctl = snd_pcm_lib_ioctl,
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.trigger = snd_ps3_pcm_trigger,
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.pointer = snd_ps3_pcm_pointer,
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.hw_params = snd_ps3_pcm_hw_params,
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.hw_free = snd_ps3_pcm_hw_free
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};
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static int snd_ps3_verify_dma_stop(struct snd_ps3_card_info *card,
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int count, int force_stop)
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{
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int dma_ch, done, retries, stop_forced = 0;
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uint32_t status;
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for (dma_ch = 0; dma_ch < 8; dma_ch ++) {
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retries = count;
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do {
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status = read_reg(PS3_AUDIO_KICK(dma_ch)) &
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PS3_AUDIO_KICK_STATUS_MASK;
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switch (status) {
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case PS3_AUDIO_KICK_STATUS_DONE:
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case PS3_AUDIO_KICK_STATUS_NOTIFY:
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case PS3_AUDIO_KICK_STATUS_CLEAR:
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case PS3_AUDIO_KICK_STATUS_ERROR:
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done = 1;
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break;
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default:
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done = 0;
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udelay(10);
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}
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} while (!done && --retries);
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if (!retries && force_stop) {
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pr_info("%s: DMA ch %d is not stopped.",
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__func__, dma_ch);
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/* last resort. force to stop dma.
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* NOTE: this cause DMA done interrupts
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*/
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update_reg(PS3_AUDIO_CONFIG, PS3_AUDIO_CONFIG_CLEAR);
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stop_forced = 1;
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}
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}
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return stop_forced;
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}
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/*
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* wait for all dma is done.
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* NOTE: caller should reset card->running before call.
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* If not, the interrupt handler will re-start DMA,
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* then DMA is never stopped.
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*/
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static void snd_ps3_wait_for_dma_stop(struct snd_ps3_card_info *card)
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{
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int stop_forced;
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/*
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* wait for the last dma is done
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*/
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/*
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* expected maximum DMA done time is 5.7ms + something (DMA itself).
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* 5.7ms is from 16bit/sample 2ch 44.1Khz; the time next
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* DMA kick event would occur.
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*/
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stop_forced = snd_ps3_verify_dma_stop(card, 700, 1);
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/*
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* clear outstanding interrupts.
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*/
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update_reg(PS3_AUDIO_INTR_0, 0);
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update_reg(PS3_AUDIO_AX_IS, 0);
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/*
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*revert CLEAR bit since it will not reset automatically after DMA stop
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*/
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if (stop_forced)
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update_mask_reg(PS3_AUDIO_CONFIG, ~PS3_AUDIO_CONFIG_CLEAR, 0);
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/* ensure the hardware sees changes */
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wmb();
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}
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static void snd_ps3_kick_dma(struct snd_ps3_card_info *card)
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{
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update_reg(PS3_AUDIO_KICK(0), PS3_AUDIO_KICK_REQUEST);
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/* ensure the hardware sees the change */
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wmb();
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}
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/*
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* convert virtual addr to ioif bus addr.
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*/
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static dma_addr_t v_to_bus(struct snd_ps3_card_info *card,
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void * paddr,
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int ch)
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{
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return card->dma_start_bus_addr[ch] +
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(paddr - card->dma_start_vaddr[ch]);
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};
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/*
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* increment ring buffer pointer.
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* NOTE: caller must hold write spinlock
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*/
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static void snd_ps3_bump_buffer(struct snd_ps3_card_info *card,
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enum snd_ps3_ch ch, size_t byte_count,
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int stage)
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{
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if (!stage)
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card->dma_last_transfer_vaddr[ch] =
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card->dma_next_transfer_vaddr[ch];
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card->dma_next_transfer_vaddr[ch] += byte_count;
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if ((card->dma_start_vaddr[ch] + (card->dma_buffer_size / 2)) <=
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card->dma_next_transfer_vaddr[ch]) {
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card->dma_next_transfer_vaddr[ch] = card->dma_start_vaddr[ch];
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}
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}
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/*
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* setup dmac to send data to audio and attenuate samples on the ring buffer
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*/
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static int snd_ps3_program_dma(struct snd_ps3_card_info *card,
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enum snd_ps3_dma_filltype filltype)
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{
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/* this dmac does not support over 4G */
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uint32_t dma_addr;
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int fill_stages, dma_ch, stage;
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enum snd_ps3_ch ch;
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uint32_t ch0_kick_event = 0; /* initialize to mute gcc */
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void *start_vaddr;
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unsigned long irqsave;
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int silent = 0;
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switch (filltype) {
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case SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL:
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silent = 1;
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/* intentionally fall thru */
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case SND_PS3_DMA_FILLTYPE_FIRSTFILL:
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ch0_kick_event = PS3_AUDIO_KICK_EVENT_ALWAYS;
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break;
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case SND_PS3_DMA_FILLTYPE_SILENT_RUNNING:
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silent = 1;
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/* intentionally fall thru */
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case SND_PS3_DMA_FILLTYPE_RUNNING:
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ch0_kick_event = PS3_AUDIO_KICK_EVENT_SERIALOUT0_EMPTY;
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break;
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}
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snd_ps3_verify_dma_stop(card, 700, 0);
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fill_stages = 4;
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spin_lock_irqsave(&card->dma_lock, irqsave);
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for (ch = 0; ch < 2; ch++) {
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start_vaddr = card->dma_next_transfer_vaddr[0];
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for (stage = 0; stage < fill_stages; stage ++) {
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dma_ch = stage * 2 + ch;
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if (silent)
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dma_addr = card->null_buffer_start_dma_addr;
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else
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dma_addr =
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v_to_bus(card,
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card->dma_next_transfer_vaddr[ch],
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ch);
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write_reg(PS3_AUDIO_SOURCE(dma_ch),
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(PS3_AUDIO_SOURCE_TARGET_SYSTEM_MEMORY |
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dma_addr));
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/* dst: fixed to 3wire#0 */
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if (ch == 0)
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write_reg(PS3_AUDIO_DEST(dma_ch),
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(PS3_AUDIO_DEST_TARGET_AUDIOFIFO |
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PS3_AUDIO_AO_3W_LDATA(0)));
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else
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write_reg(PS3_AUDIO_DEST(dma_ch),
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(PS3_AUDIO_DEST_TARGET_AUDIOFIFO |
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PS3_AUDIO_AO_3W_RDATA(0)));
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/* count always 1 DMA block (1/2 stage = 128 bytes) */
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write_reg(PS3_AUDIO_DMASIZE(dma_ch), 0);
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/* bump pointer if needed */
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if (!silent)
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snd_ps3_bump_buffer(card, ch,
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PS3_AUDIO_DMAC_BLOCK_SIZE,
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stage);
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/* kick event */
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if (dma_ch == 0)
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write_reg(PS3_AUDIO_KICK(dma_ch),
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ch0_kick_event);
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else
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write_reg(PS3_AUDIO_KICK(dma_ch),
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PS3_AUDIO_KICK_EVENT_AUDIO_DMA(dma_ch
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- 1) |
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PS3_AUDIO_KICK_REQUEST);
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}
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}
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/* ensure the hardware sees the change */
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wmb();
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spin_unlock_irqrestore(&card->dma_lock, irqsave);
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return 0;
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}
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/*
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* audio mute on/off
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* mute_on : 0 output enabled
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* 1 mute
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*/
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static int snd_ps3_mute(int mute_on)
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{
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return ps3av_audio_mute(mute_on);
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}
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/*
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* PCM operators
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*/
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static int snd_ps3_pcm_open(struct snd_pcm_substream *substream)
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{
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struct snd_pcm_runtime *runtime = substream->runtime;
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struct snd_ps3_card_info *card = snd_pcm_substream_chip(substream);
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int pcm_index;
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pcm_index = substream->pcm->device;
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/* to retrieve substream/runtime in interrupt handler */
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card->substream = substream;
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runtime->hw = snd_ps3_pcm_hw;
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card->start_delay = snd_ps3_start_delay;
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/* mute off */
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snd_ps3_mute(0); /* this function sleep */
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snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
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PS3_AUDIO_FIFO_STAGE_SIZE * 4 * 2);
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return 0;
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};
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static int snd_ps3_pcm_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *hw_params)
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{
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size_t size;
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/* alloc transport buffer */
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size = params_buffer_bytes(hw_params);
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snd_pcm_lib_malloc_pages(substream, size);
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return 0;
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};
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static int snd_ps3_delay_to_bytes(struct snd_pcm_substream *substream,
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unsigned int delay_ms)
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{
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int ret;
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int rate ;
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rate = substream->runtime->rate;
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ret = snd_pcm_format_size(substream->runtime->format,
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rate * delay_ms / 1000)
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* substream->runtime->channels;
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pr_debug(KERN_ERR "%s: time=%d rate=%d bytes=%ld, frames=%d, ret=%d\n",
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__func__,
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delay_ms,
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rate,
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snd_pcm_format_size(substream->runtime->format, rate),
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rate * delay_ms / 1000,
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ret);
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return ret;
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};
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static int snd_ps3_pcm_prepare(struct snd_pcm_substream *substream)
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{
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struct snd_pcm_runtime *runtime = substream->runtime;
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struct snd_ps3_card_info *card = snd_pcm_substream_chip(substream);
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unsigned long irqsave;
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if (!snd_ps3_set_avsetting(substream)) {
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/* some parameter changed */
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write_reg(PS3_AUDIO_AX_IE,
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PS3_AUDIO_AX_IE_ASOBEIE(0) |
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PS3_AUDIO_AX_IE_ASOBUIE(0));
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/*
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* let SPDIF device re-lock with SPDIF signal,
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* start with some silence
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*/
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card->silent = snd_ps3_delay_to_bytes(substream,
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card->start_delay) /
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(PS3_AUDIO_FIFO_STAGE_SIZE * 4); /* every 4 times */
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}
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/* restart ring buffer pointer */
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spin_lock_irqsave(&card->dma_lock, irqsave);
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{
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card->dma_buffer_size = runtime->dma_bytes;
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card->dma_last_transfer_vaddr[SND_PS3_CH_L] =
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card->dma_next_transfer_vaddr[SND_PS3_CH_L] =
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card->dma_start_vaddr[SND_PS3_CH_L] =
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runtime->dma_area;
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card->dma_start_bus_addr[SND_PS3_CH_L] = runtime->dma_addr;
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card->dma_last_transfer_vaddr[SND_PS3_CH_R] =
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card->dma_next_transfer_vaddr[SND_PS3_CH_R] =
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card->dma_start_vaddr[SND_PS3_CH_R] =
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runtime->dma_area + (runtime->dma_bytes / 2);
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card->dma_start_bus_addr[SND_PS3_CH_R] =
|
|
runtime->dma_addr + (runtime->dma_bytes / 2);
|
|
|
|
pr_debug("%s: vaddr=%p bus=%#lx\n", __func__,
|
|
card->dma_start_vaddr[SND_PS3_CH_L],
|
|
card->dma_start_bus_addr[SND_PS3_CH_L]);
|
|
|
|
}
|
|
spin_unlock_irqrestore(&card->dma_lock, irqsave);
|
|
|
|
/* ensure the hardware sees the change */
|
|
mb();
|
|
|
|
return 0;
|
|
};
|
|
|
|
static int snd_ps3_pcm_trigger(struct snd_pcm_substream *substream,
|
|
int cmd)
|
|
{
|
|
struct snd_ps3_card_info *card = snd_pcm_substream_chip(substream);
|
|
int ret = 0;
|
|
|
|
switch (cmd) {
|
|
case SNDRV_PCM_TRIGGER_START:
|
|
/* clear outstanding interrupts */
|
|
update_reg(PS3_AUDIO_AX_IS, 0);
|
|
|
|
spin_lock(&card->dma_lock);
|
|
{
|
|
card->running = 1;
|
|
}
|
|
spin_unlock(&card->dma_lock);
|
|
|
|
snd_ps3_program_dma(card,
|
|
SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL);
|
|
snd_ps3_kick_dma(card);
|
|
while (read_reg(PS3_AUDIO_KICK(7)) &
|
|
PS3_AUDIO_KICK_STATUS_MASK) {
|
|
udelay(1);
|
|
}
|
|
snd_ps3_program_dma(card, SND_PS3_DMA_FILLTYPE_SILENT_RUNNING);
|
|
snd_ps3_kick_dma(card);
|
|
break;
|
|
|
|
case SNDRV_PCM_TRIGGER_STOP:
|
|
spin_lock(&card->dma_lock);
|
|
{
|
|
card->running = 0;
|
|
}
|
|
spin_unlock(&card->dma_lock);
|
|
snd_ps3_wait_for_dma_stop(card);
|
|
break;
|
|
default:
|
|
break;
|
|
|
|
}
|
|
|
|
return ret;
|
|
};
|
|
|
|
/*
|
|
* report current pointer
|
|
*/
|
|
static snd_pcm_uframes_t snd_ps3_pcm_pointer(
|
|
struct snd_pcm_substream *substream)
|
|
{
|
|
struct snd_ps3_card_info *card = snd_pcm_substream_chip(substream);
|
|
size_t bytes;
|
|
snd_pcm_uframes_t ret;
|
|
|
|
spin_lock(&card->dma_lock);
|
|
{
|
|
bytes = (size_t)(card->dma_last_transfer_vaddr[SND_PS3_CH_L] -
|
|
card->dma_start_vaddr[SND_PS3_CH_L]);
|
|
}
|
|
spin_unlock(&card->dma_lock);
|
|
|
|
ret = bytes_to_frames(substream->runtime, bytes * 2);
|
|
|
|
return ret;
|
|
};
|
|
|
|
static int snd_ps3_pcm_hw_free(struct snd_pcm_substream *substream)
|
|
{
|
|
int ret;
|
|
ret = snd_pcm_lib_free_pages(substream);
|
|
return ret;
|
|
};
|
|
|
|
static int snd_ps3_pcm_close(struct snd_pcm_substream *substream)
|
|
{
|
|
/* mute on */
|
|
snd_ps3_mute(1);
|
|
return 0;
|
|
};
|
|
|
|
static void snd_ps3_audio_fixup(struct snd_ps3_card_info *card)
|
|
{
|
|
/*
|
|
* avsetting driver seems to never change the followings
|
|
* so, init them here once
|
|
*/
|
|
|
|
/* no dma interrupt needed */
|
|
write_reg(PS3_AUDIO_INTR_EN_0, 0);
|
|
|
|
/* use every 4 buffer empty interrupt */
|
|
update_mask_reg(PS3_AUDIO_AX_IC,
|
|
PS3_AUDIO_AX_IC_AASOIMD_MASK,
|
|
PS3_AUDIO_AX_IC_AASOIMD_EVERY4);
|
|
|
|
/* enable 3wire clocks */
|
|
update_mask_reg(PS3_AUDIO_AO_3WMCTRL,
|
|
~(PS3_AUDIO_AO_3WMCTRL_ASOBCLKD_DISABLED |
|
|
PS3_AUDIO_AO_3WMCTRL_ASOLRCKD_DISABLED),
|
|
0);
|
|
update_reg(PS3_AUDIO_AO_3WMCTRL,
|
|
PS3_AUDIO_AO_3WMCTRL_ASOPLRCK_DEFAULT);
|
|
}
|
|
|
|
/*
|
|
* av setting
|
|
* NOTE: calling this function may generate audio interrupt.
|
|
*/
|
|
static int snd_ps3_change_avsetting(struct snd_ps3_card_info *card)
|
|
{
|
|
int ret, retries, i;
|
|
pr_debug("%s: start\n", __func__);
|
|
|
|
ret = ps3av_set_audio_mode(card->avs.avs_audio_ch,
|
|
card->avs.avs_audio_rate,
|
|
card->avs.avs_audio_width,
|
|
card->avs.avs_audio_format,
|
|
card->avs.avs_audio_source);
|
|
/*
|
|
* Reset the following unwanted settings:
|
|
*/
|
|
|
|
/* disable all 3wire buffers */
|
|
update_mask_reg(PS3_AUDIO_AO_3WMCTRL,
|
|
~(PS3_AUDIO_AO_3WMCTRL_ASOEN(0) |
|
|
PS3_AUDIO_AO_3WMCTRL_ASOEN(1) |
|
|
PS3_AUDIO_AO_3WMCTRL_ASOEN(2) |
|
|
PS3_AUDIO_AO_3WMCTRL_ASOEN(3)),
|
|
0);
|
|
wmb(); /* ensure the hardware sees the change */
|
|
/* wait for actually stopped */
|
|
retries = 1000;
|
|
while ((read_reg(PS3_AUDIO_AO_3WMCTRL) &
|
|
(PS3_AUDIO_AO_3WMCTRL_ASORUN(0) |
|
|
PS3_AUDIO_AO_3WMCTRL_ASORUN(1) |
|
|
PS3_AUDIO_AO_3WMCTRL_ASORUN(2) |
|
|
PS3_AUDIO_AO_3WMCTRL_ASORUN(3))) &&
|
|
--retries) {
|
|
udelay(1);
|
|
}
|
|
|
|
/* reset buffer pointer */
|
|
for (i = 0; i < 4; i++) {
|
|
update_reg(PS3_AUDIO_AO_3WCTRL(i),
|
|
PS3_AUDIO_AO_3WCTRL_ASOBRST_RESET);
|
|
udelay(10);
|
|
}
|
|
wmb(); /* ensure the hardware actually start resetting */
|
|
|
|
/* enable 3wire#0 buffer */
|
|
update_reg(PS3_AUDIO_AO_3WMCTRL, PS3_AUDIO_AO_3WMCTRL_ASOEN(0));
|
|
|
|
|
|
/* In 24bit mode,ALSA inserts a zero byte at first byte of per sample */
|
|
update_mask_reg(PS3_AUDIO_AO_3WCTRL(0),
|
|
~PS3_AUDIO_AO_3WCTRL_ASODF,
|
|
PS3_AUDIO_AO_3WCTRL_ASODF_LSB);
|
|
update_mask_reg(PS3_AUDIO_AO_SPDCTRL(0),
|
|
~PS3_AUDIO_AO_SPDCTRL_SPODF,
|
|
PS3_AUDIO_AO_SPDCTRL_SPODF_LSB);
|
|
/* ensure all the setting above is written back to register */
|
|
wmb();
|
|
/* avsetting driver altered AX_IE, caller must reset it if you want */
|
|
pr_debug("%s: end\n", __func__);
|
|
return ret;
|
|
}
|
|
|
|
static int snd_ps3_init_avsetting(struct snd_ps3_card_info *card)
|
|
{
|
|
int ret;
|
|
pr_debug("%s: start\n", __func__);
|
|
card->avs.avs_audio_ch = PS3AV_CMD_AUDIO_NUM_OF_CH_2;
|
|
card->avs.avs_audio_rate = PS3AV_CMD_AUDIO_FS_48K;
|
|
card->avs.avs_audio_width = PS3AV_CMD_AUDIO_WORD_BITS_16;
|
|
card->avs.avs_audio_format = PS3AV_CMD_AUDIO_FORMAT_PCM;
|
|
card->avs.avs_audio_source = PS3AV_CMD_AUDIO_SOURCE_SERIAL;
|
|
|
|
ret = snd_ps3_change_avsetting(card);
|
|
|
|
snd_ps3_audio_fixup(card);
|
|
|
|
/* to start to generate SPDIF signal, fill data */
|
|
snd_ps3_program_dma(card, SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL);
|
|
snd_ps3_kick_dma(card);
|
|
pr_debug("%s: end\n", __func__);
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* set sampling rate according to the substream
|
|
*/
|
|
static int snd_ps3_set_avsetting(struct snd_pcm_substream *substream)
|
|
{
|
|
struct snd_ps3_card_info *card = snd_pcm_substream_chip(substream);
|
|
struct snd_ps3_avsetting_info avs;
|
|
|
|
avs = card->avs;
|
|
|
|
pr_debug("%s: called freq=%d width=%d\n", __func__,
|
|
substream->runtime->rate,
|
|
snd_pcm_format_width(substream->runtime->format));
|
|
|
|
pr_debug("%s: before freq=%d width=%d\n", __func__,
|
|
card->avs.avs_audio_rate, card->avs.avs_audio_width);
|
|
|
|
/* sample rate */
|
|
switch (substream->runtime->rate) {
|
|
case 44100:
|
|
avs.avs_audio_rate = PS3AV_CMD_AUDIO_FS_44K;
|
|
break;
|
|
case 48000:
|
|
avs.avs_audio_rate = PS3AV_CMD_AUDIO_FS_48K;
|
|
break;
|
|
case 88200:
|
|
avs.avs_audio_rate = PS3AV_CMD_AUDIO_FS_88K;
|
|
break;
|
|
case 96000:
|
|
avs.avs_audio_rate = PS3AV_CMD_AUDIO_FS_96K;
|
|
break;
|
|
default:
|
|
pr_info("%s: invalid rate %d\n", __func__,
|
|
substream->runtime->rate);
|
|
return 1;
|
|
}
|
|
|
|
/* width */
|
|
switch (snd_pcm_format_width(substream->runtime->format)) {
|
|
case 16:
|
|
avs.avs_audio_width = PS3AV_CMD_AUDIO_WORD_BITS_16;
|
|
break;
|
|
case 24:
|
|
avs.avs_audio_width = PS3AV_CMD_AUDIO_WORD_BITS_24;
|
|
break;
|
|
default:
|
|
pr_info("%s: invalid width %d\n", __func__,
|
|
snd_pcm_format_width(substream->runtime->format));
|
|
return 1;
|
|
}
|
|
|
|
if ((card->avs.avs_audio_width != avs.avs_audio_width) ||
|
|
(card->avs.avs_audio_rate != avs.avs_audio_rate)) {
|
|
card->avs = avs;
|
|
snd_ps3_change_avsetting(card);
|
|
|
|
pr_debug("%s: after freq=%d width=%d\n", __func__,
|
|
card->avs.avs_audio_rate, card->avs.avs_audio_width);
|
|
|
|
return 0;
|
|
} else
|
|
return 1;
|
|
}
|
|
|
|
|
|
|
|
static int snd_ps3_map_mmio(void)
|
|
{
|
|
the_card.mapped_mmio_vaddr =
|
|
ioremap(the_card.ps3_dev->m_region->bus_addr,
|
|
the_card.ps3_dev->m_region->len);
|
|
|
|
if (!the_card.mapped_mmio_vaddr) {
|
|
pr_info("%s: ioremap 0 failed p=%#lx l=%#lx \n",
|
|
__func__, the_card.ps3_dev->m_region->lpar_addr,
|
|
the_card.ps3_dev->m_region->len);
|
|
return -ENXIO;
|
|
}
|
|
|
|
return 0;
|
|
};
|
|
|
|
static void snd_ps3_unmap_mmio(void)
|
|
{
|
|
iounmap(the_card.mapped_mmio_vaddr);
|
|
the_card.mapped_mmio_vaddr = NULL;
|
|
}
|
|
|
|
static int snd_ps3_allocate_irq(void)
|
|
{
|
|
int ret;
|
|
u64 lpar_addr, lpar_size;
|
|
u64 __iomem *mapped;
|
|
|
|
/* FIXME: move this to device_init (H/W probe) */
|
|
|
|
/* get irq outlet */
|
|
ret = lv1_gpu_device_map(1, &lpar_addr, &lpar_size);
|
|
if (ret) {
|
|
pr_info("%s: device map 1 failed %d\n", __func__,
|
|
ret);
|
|
return -ENXIO;
|
|
}
|
|
|
|
mapped = ioremap(lpar_addr, lpar_size);
|
|
if (!mapped) {
|
|
pr_info("%s: ioremap 1 failed \n", __func__);
|
|
return -ENXIO;
|
|
}
|
|
|
|
the_card.audio_irq_outlet = in_be64(mapped);
|
|
|
|
iounmap(mapped);
|
|
ret = lv1_gpu_device_unmap(1);
|
|
if (ret)
|
|
pr_info("%s: unmap 1 failed\n", __func__);
|
|
|
|
/* irq */
|
|
ret = ps3_irq_plug_setup(PS3_BINDING_CPU_ANY,
|
|
the_card.audio_irq_outlet,
|
|
&the_card.irq_no);
|
|
if (ret) {
|
|
pr_info("%s:ps3_alloc_irq failed (%d)\n", __func__, ret);
|
|
return ret;
|
|
}
|
|
|
|
ret = request_irq(the_card.irq_no, snd_ps3_interrupt, IRQF_DISABLED,
|
|
SND_PS3_DRIVER_NAME, &the_card);
|
|
if (ret) {
|
|
pr_info("%s: request_irq failed (%d)\n", __func__, ret);
|
|
goto cleanup_irq;
|
|
}
|
|
|
|
return 0;
|
|
|
|
cleanup_irq:
|
|
ps3_irq_plug_destroy(the_card.irq_no);
|
|
return ret;
|
|
};
|
|
|
|
static void snd_ps3_free_irq(void)
|
|
{
|
|
free_irq(the_card.irq_no, &the_card);
|
|
ps3_irq_plug_destroy(the_card.irq_no);
|
|
}
|
|
|
|
static void snd_ps3_audio_set_base_addr(uint64_t ioaddr_start)
|
|
{
|
|
uint64_t val;
|
|
int ret;
|
|
|
|
val = (ioaddr_start & (0x0fUL << 32)) >> (32 - 20) |
|
|
(0x03UL << 24) |
|
|
(0x0fUL << 12) |
|
|
(PS3_AUDIO_IOID);
|
|
|
|
ret = lv1_gpu_attribute(0x100, 0x007, val, 0, 0);
|
|
if (ret)
|
|
pr_info("%s: gpu_attribute failed %d\n", __func__,
|
|
ret);
|
|
}
|
|
|
|
static int __init snd_ps3_driver_probe(struct ps3_system_bus_device *dev)
|
|
{
|
|
int ret;
|
|
u64 lpar_addr, lpar_size;
|
|
|
|
BUG_ON(!firmware_has_feature(FW_FEATURE_PS3_LV1));
|
|
BUG_ON(dev->match_id != PS3_MATCH_ID_SOUND);
|
|
|
|
the_card.ps3_dev = dev;
|
|
|
|
ret = ps3_open_hv_device(dev);
|
|
|
|
if (ret)
|
|
return -ENXIO;
|
|
|
|
/* setup MMIO */
|
|
ret = lv1_gpu_device_map(2, &lpar_addr, &lpar_size);
|
|
if (ret) {
|
|
pr_info("%s: device map 2 failed %d\n", __func__, ret);
|
|
goto clean_open;
|
|
}
|
|
ps3_mmio_region_init(dev, dev->m_region, lpar_addr, lpar_size,
|
|
PAGE_SHIFT);
|
|
|
|
ret = snd_ps3_map_mmio();
|
|
if (ret)
|
|
goto clean_dev_map;
|
|
|
|
/* setup DMA area */
|
|
ps3_dma_region_init(dev, dev->d_region,
|
|
PAGE_SHIFT, /* use system page size */
|
|
0, /* dma type; not used */
|
|
NULL,
|
|
_ALIGN_UP(SND_PS3_DMA_REGION_SIZE, PAGE_SIZE));
|
|
dev->d_region->ioid = PS3_AUDIO_IOID;
|
|
|
|
ret = ps3_dma_region_create(dev->d_region);
|
|
if (ret) {
|
|
pr_info("%s: region_create\n", __func__);
|
|
goto clean_mmio;
|
|
}
|
|
|
|
snd_ps3_audio_set_base_addr(dev->d_region->bus_addr);
|
|
|
|
/* CONFIG_SND_PS3_DEFAULT_START_DELAY */
|
|
the_card.start_delay = snd_ps3_start_delay;
|
|
|
|
/* irq */
|
|
if (snd_ps3_allocate_irq()) {
|
|
ret = -ENXIO;
|
|
goto clean_dma_region;
|
|
}
|
|
|
|
/* create card instance */
|
|
the_card.card = snd_card_new(index, id, THIS_MODULE, 0);
|
|
if (!the_card.card) {
|
|
ret = -ENXIO;
|
|
goto clean_irq;
|
|
}
|
|
|
|
strcpy(the_card.card->driver, "PS3");
|
|
strcpy(the_card.card->shortname, "PS3");
|
|
strcpy(the_card.card->longname, "PS3 sound");
|
|
/* create PCM devices instance */
|
|
/* NOTE:this driver works assuming pcm:substream = 1:1 */
|
|
ret = snd_pcm_new(the_card.card,
|
|
"SPDIF",
|
|
0, /* instance index, will be stored pcm.device*/
|
|
1, /* output substream */
|
|
0, /* input substream */
|
|
&(the_card.pcm));
|
|
if (ret)
|
|
goto clean_card;
|
|
|
|
the_card.pcm->private_data = &the_card;
|
|
strcpy(the_card.pcm->name, "SPDIF");
|
|
|
|
/* set pcm ops */
|
|
snd_pcm_set_ops(the_card.pcm, SNDRV_PCM_STREAM_PLAYBACK,
|
|
&snd_ps3_pcm_spdif_ops);
|
|
|
|
the_card.pcm->info_flags = SNDRV_PCM_INFO_NONINTERLEAVED;
|
|
/* pre-alloc PCM DMA buffer*/
|
|
ret = snd_pcm_lib_preallocate_pages_for_all(the_card.pcm,
|
|
SNDRV_DMA_TYPE_DEV,
|
|
&dev->core,
|
|
SND_PS3_PCM_PREALLOC_SIZE,
|
|
SND_PS3_PCM_PREALLOC_SIZE);
|
|
if (ret < 0) {
|
|
pr_info("%s: prealloc failed\n", __func__);
|
|
goto clean_card;
|
|
}
|
|
|
|
/*
|
|
* allocate null buffer
|
|
* its size should be lager than PS3_AUDIO_FIFO_STAGE_SIZE * 2
|
|
* PAGE_SIZE is enogh
|
|
*/
|
|
if (!(the_card.null_buffer_start_vaddr =
|
|
dma_alloc_coherent(&the_card.ps3_dev->core,
|
|
PAGE_SIZE,
|
|
&the_card.null_buffer_start_dma_addr,
|
|
GFP_KERNEL))) {
|
|
pr_info("%s: nullbuffer alloc failed\n", __func__);
|
|
goto clean_preallocate;
|
|
}
|
|
pr_debug("%s: null vaddr=%p dma=%#lx\n", __func__,
|
|
the_card.null_buffer_start_vaddr,
|
|
the_card.null_buffer_start_dma_addr);
|
|
/* set default sample rate/word width */
|
|
snd_ps3_init_avsetting(&the_card);
|
|
|
|
/* register the card */
|
|
ret = snd_card_register(the_card.card);
|
|
if (ret < 0)
|
|
goto clean_dma_map;
|
|
|
|
pr_info("%s started. start_delay=%dms\n",
|
|
the_card.card->longname, the_card.start_delay);
|
|
return 0;
|
|
|
|
clean_dma_map:
|
|
dma_free_coherent(&the_card.ps3_dev->core,
|
|
PAGE_SIZE,
|
|
the_card.null_buffer_start_vaddr,
|
|
the_card.null_buffer_start_dma_addr);
|
|
clean_preallocate:
|
|
snd_pcm_lib_preallocate_free_for_all(the_card.pcm);
|
|
clean_card:
|
|
snd_card_free(the_card.card);
|
|
clean_irq:
|
|
snd_ps3_free_irq();
|
|
clean_dma_region:
|
|
ps3_dma_region_free(dev->d_region);
|
|
clean_mmio:
|
|
snd_ps3_unmap_mmio();
|
|
clean_dev_map:
|
|
lv1_gpu_device_unmap(2);
|
|
clean_open:
|
|
ps3_close_hv_device(dev);
|
|
/*
|
|
* there is no destructor function to pcm.
|
|
* midlayer automatically releases if the card removed
|
|
*/
|
|
return ret;
|
|
}; /* snd_ps3_probe */
|
|
|
|
/* called when module removal */
|
|
static int snd_ps3_driver_remove(struct ps3_system_bus_device *dev)
|
|
{
|
|
int ret;
|
|
pr_info("%s:start id=%d\n", __func__, dev->match_id);
|
|
if (dev->match_id != PS3_MATCH_ID_SOUND)
|
|
return -ENXIO;
|
|
|
|
/*
|
|
* ctl and preallocate buffer will be freed in
|
|
* snd_card_free
|
|
*/
|
|
ret = snd_card_free(the_card.card);
|
|
if (ret)
|
|
pr_info("%s: ctl freecard=%d\n", __func__, ret);
|
|
|
|
dma_free_coherent(&dev->core,
|
|
PAGE_SIZE,
|
|
the_card.null_buffer_start_vaddr,
|
|
the_card.null_buffer_start_dma_addr);
|
|
|
|
ps3_dma_region_free(dev->d_region);
|
|
|
|
snd_ps3_free_irq();
|
|
snd_ps3_unmap_mmio();
|
|
|
|
lv1_gpu_device_unmap(2);
|
|
ps3_close_hv_device(dev);
|
|
pr_info("%s:end id=%d\n", __func__, dev->match_id);
|
|
return 0;
|
|
} /* snd_ps3_remove */
|
|
|
|
static struct ps3_system_bus_driver snd_ps3_bus_driver_info = {
|
|
.match_id = PS3_MATCH_ID_SOUND,
|
|
.probe = snd_ps3_driver_probe,
|
|
.remove = snd_ps3_driver_remove,
|
|
.shutdown = snd_ps3_driver_remove,
|
|
.core = {
|
|
.name = SND_PS3_DRIVER_NAME,
|
|
.owner = THIS_MODULE,
|
|
},
|
|
};
|
|
|
|
|
|
/*
|
|
* Interrupt handler
|
|
*/
|
|
static irqreturn_t snd_ps3_interrupt(int irq, void *dev_id)
|
|
{
|
|
|
|
uint32_t port_intr;
|
|
int underflow_occured = 0;
|
|
struct snd_ps3_card_info *card = dev_id;
|
|
|
|
if (!card->running) {
|
|
update_reg(PS3_AUDIO_AX_IS, 0);
|
|
update_reg(PS3_AUDIO_INTR_0, 0);
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
port_intr = read_reg(PS3_AUDIO_AX_IS);
|
|
/*
|
|
*serial buffer empty detected (every 4 times),
|
|
*program next dma and kick it
|
|
*/
|
|
if (port_intr & PS3_AUDIO_AX_IE_ASOBEIE(0)) {
|
|
write_reg(PS3_AUDIO_AX_IS, PS3_AUDIO_AX_IE_ASOBEIE(0));
|
|
if (port_intr & PS3_AUDIO_AX_IE_ASOBUIE(0)) {
|
|
write_reg(PS3_AUDIO_AX_IS, port_intr);
|
|
underflow_occured = 1;
|
|
}
|
|
if (card->silent) {
|
|
/* we are still in silent time */
|
|
snd_ps3_program_dma(card,
|
|
(underflow_occured) ?
|
|
SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL :
|
|
SND_PS3_DMA_FILLTYPE_SILENT_RUNNING);
|
|
snd_ps3_kick_dma(card);
|
|
card->silent --;
|
|
} else {
|
|
snd_ps3_program_dma(card,
|
|
(underflow_occured) ?
|
|
SND_PS3_DMA_FILLTYPE_FIRSTFILL :
|
|
SND_PS3_DMA_FILLTYPE_RUNNING);
|
|
snd_ps3_kick_dma(card);
|
|
snd_pcm_period_elapsed(card->substream);
|
|
}
|
|
} else if (port_intr & PS3_AUDIO_AX_IE_ASOBUIE(0)) {
|
|
write_reg(PS3_AUDIO_AX_IS, PS3_AUDIO_AX_IE_ASOBUIE(0));
|
|
/*
|
|
* serial out underflow, but buffer empty not detected.
|
|
* in this case, fill fifo with 0 to recover. After
|
|
* filling dummy data, serial automatically start to
|
|
* consume them and then will generate normal buffer
|
|
* empty interrupts.
|
|
* If both buffer underflow and buffer empty are occured,
|
|
* it is better to do nomal data transfer than empty one
|
|
*/
|
|
snd_ps3_program_dma(card,
|
|
SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL);
|
|
snd_ps3_kick_dma(card);
|
|
snd_ps3_program_dma(card,
|
|
SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL);
|
|
snd_ps3_kick_dma(card);
|
|
}
|
|
/* clear interrupt cause */
|
|
return IRQ_HANDLED;
|
|
};
|
|
|
|
/*
|
|
* module/subsystem initialize/terminate
|
|
*/
|
|
static int __init snd_ps3_init(void)
|
|
{
|
|
int ret;
|
|
|
|
if (!firmware_has_feature(FW_FEATURE_PS3_LV1))
|
|
return -ENXIO;
|
|
|
|
memset(&the_card, 0, sizeof(the_card));
|
|
spin_lock_init(&the_card.dma_lock);
|
|
|
|
/* register systembus DRIVER, this calls our probe() func */
|
|
ret = ps3_system_bus_driver_register(&snd_ps3_bus_driver_info);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void __exit snd_ps3_exit(void)
|
|
{
|
|
ps3_system_bus_driver_unregister(&snd_ps3_bus_driver_info);
|
|
}
|
|
|
|
MODULE_ALIAS(PS3_MODULE_ALIAS_SOUND);
|