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![Linus Torvalds](/assets/img/avatar_default.png)
- Switch to the generic C VDSO, as well as some cleanups of our VDSO setup/handling code. - Support for KUAP (Kernel User Access Prevention) on systems using the hashed page table MMU, using memory protection keys. - Better handling of PowerVM SMT8 systems where all threads of a core do not share an L2, allowing the scheduler to make better scheduling decisions. - Further improvements to our machine check handling. - Show registers when unwinding interrupt frames during stack traces. - Improvements to our pseries (PowerVM) partition migration code. - Several series from Christophe refactoring and cleaning up various parts of the 32-bit code. - Other smaller features, fixes & cleanups. Thanks to: Alan Modra, Alexey Kardashevskiy, Andrew Donnellan, Aneesh Kumar K.V, Ard Biesheuvel, Athira Rajeev, Balamuruhan S, Bill Wendling, Cédric Le Goater, Christophe Leroy, Christophe Lombard, Colin Ian King, Daniel Axtens, David Hildenbrand, Frederic Barrat, Ganesh Goudar, Gautham R. Shenoy, Geert Uytterhoeven, Giuseppe Sacco, Greg Kurz, Harish, Jan Kratochvil, Jordan Niethe, Kaixu Xia, Laurent Dufour, Leonardo Bras, Madhavan Srinivasan, Mahesh Salgaonkar, Mathieu Desnoyers, Nathan Lynch, Nicholas Piggin, Oleg Nesterov, Oliver O'Halloran, Oscar Salvador, Po-Hsu Lin, Qian Cai, Qinglang Miao, Randy Dunlap, Ravi Bangoria, Sachin Sant, Sandipan Das, Sebastian Andrzej Siewior , Segher Boessenkool, Srikar Dronamraju, Tyrel Datwyler, Uwe Kleine-König, Vincent Stehlé, Youling Tang, Zhang Xiaoxu. -----BEGIN PGP SIGNATURE----- iQJHBAABCAAxFiEEJFGtCPCthwEv2Y/bUevqPMjhpYAFAl/bURITHG1wZUBlbGxl cm1hbi5pZC5hdQAKCRBR6+o8yOGlgEzBEAC1Vwibcog2P9rkJPb0q3UGWSYSx25V h/LwwxtM9Tm14j/LZsSgkOgIsfMaWEBIw/8D4efQ7AX9aFo+R0c2DdQMx1MG5MXz gZk58+l3LwId6h9+OrwurpEW+ZmURLAtGMSyFdkeiZ3/XTnkbf1XnewC0QWQe56a EGLmjx1MFl45jspoy7UIUXsXoNJIfflEKhrgUzSUh8X2eLmvB9ws6A4BXxbVzyZl lZv3+uWimU2pFgdkB9jOCxoG4zFEr2o5ovLHG7zCCVo5JoXmTPQ5cMVBraH206ms +5vCmu4qI8uP5UlZW/mZfhrtDiMdHdQqqFOaQwVlOmoUbU6L6E6rxm3iVnov2Bbi iUgxoeJDxAb2cM2EWFK6oWVgr7+NkwvXM1IG8xtprhHrCdnC9r+psQr/dswb3LSg MJ7u/RCq3uixy2kWP8E0NEHw7ngQZ/ZKPqzfnmIWOC7tYUxgaL02I8Ff9/ZXAI2J CnmqFYOjrimHkcwXGOtKkXNvfU0DiL97qpK2AQNWElE8+bUUmpw+ltUrsdSycYmv Afc4WIcVrTA+a9laSLgjdZbolbNSa3p+cMIYdPrVx9g+xqygbxIKv+EDGNv1WHfD GU1gmohMY+ZkMOvFRMi8LAsEm0DH/etWE0py/8uyxDYKnGyD1Ur6452DStkmgGb2 azmcaOyLdb+HXA== =Ga3K -----END PGP SIGNATURE----- Merge tag 'powerpc-5.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc updates from Michael Ellerman: - Switch to the generic C VDSO, as well as some cleanups of our VDSO setup/handling code. - Support for KUAP (Kernel User Access Prevention) on systems using the hashed page table MMU, using memory protection keys. - Better handling of PowerVM SMT8 systems where all threads of a core do not share an L2, allowing the scheduler to make better scheduling decisions. - Further improvements to our machine check handling. - Show registers when unwinding interrupt frames during stack traces. - Improvements to our pseries (PowerVM) partition migration code. - Several series from Christophe refactoring and cleaning up various parts of the 32-bit code. - Other smaller features, fixes & cleanups. Thanks to: Alan Modra, Alexey Kardashevskiy, Andrew Donnellan, Aneesh Kumar K.V, Ard Biesheuvel, Athira Rajeev, Balamuruhan S, Bill Wendling, Cédric Le Goater, Christophe Leroy, Christophe Lombard, Colin Ian King, Daniel Axtens, David Hildenbrand, Frederic Barrat, Ganesh Goudar, Gautham R. Shenoy, Geert Uytterhoeven, Giuseppe Sacco, Greg Kurz, Harish, Jan Kratochvil, Jordan Niethe, Kaixu Xia, Laurent Dufour, Leonardo Bras, Madhavan Srinivasan, Mahesh Salgaonkar, Mathieu Desnoyers, Nathan Lynch, Nicholas Piggin, Oleg Nesterov, Oliver O'Halloran, Oscar Salvador, Po-Hsu Lin, Qian Cai, Qinglang Miao, Randy Dunlap, Ravi Bangoria, Sachin Sant, Sandipan Das, Sebastian Andrzej Siewior , Segher Boessenkool, Srikar Dronamraju, Tyrel Datwyler, Uwe Kleine-König, Vincent Stehlé, Youling Tang, and Zhang Xiaoxu. * tag 'powerpc-5.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (304 commits) powerpc/32s: Fix cleanup_cpu_mmu_context() compile bug powerpc: Add config fragment for disabling -Werror powerpc/configs: Add ppc64le_allnoconfig target powerpc/powernv: Rate limit opal-elog read failure message powerpc/pseries/memhotplug: Quieten some DLPAR operations powerpc/ps3: use dma_mapping_error() powerpc: force inlining of csum_partial() to avoid multiple csum_partial() with GCC10 powerpc/perf: Fix Threshold Event Counter Multiplier width for P10 powerpc/mm: Fix hugetlb_free_pmd_range() and hugetlb_free_pud_range() KVM: PPC: Book3S HV: Fix mask size for emulated msgsndp KVM: PPC: fix comparison to bool warning KVM: PPC: Book3S: Assign boolean values to a bool variable powerpc: Inline setup_kup() powerpc/64s: Mark the kuap/kuep functions non __init KVM: PPC: Book3S HV: XIVE: Add a comment regarding VP numbering powerpc/xive: Improve error reporting of OPAL calls powerpc/xive: Simplify xive_do_source_eoi() powerpc/xive: Remove P9 DD1 flag XIVE_IRQ_FLAG_EOI_FW powerpc/xive: Remove P9 DD1 flag XIVE_IRQ_FLAG_MASK_FW powerpc/xive: Remove P9 DD1 flag XIVE_IRQ_FLAG_SHIFT_BUG ...
1116 lines
27 KiB
C
1116 lines
27 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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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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#include <linux/dma-mapping.h>
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#include <linux/dmapool.h>
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#include <linux/gfp.h>
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#include <linux/init.h>
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#include <linux/interrupt.h>
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#include <linux/io.h>
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#include <linux/module.h>
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#include <sound/asound.h>
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#include <sound/control.h>
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#include <sound/core.h>
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#include <sound/initval.h>
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#include <sound/memalloc.h>
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#include <sound/pcm.h>
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#include <sound/pcm_params.h>
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#include <asm/dma.h>
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#include <asm/firmware.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.h"
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#include "snd_ps3_reg.h"
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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 ms");
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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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static const 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 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, void *paddr, 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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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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fallthrough;
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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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fallthrough;
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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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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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* Interrupt handler
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*/
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static irqreturn_t snd_ps3_interrupt(int irq, void *dev_id)
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{
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uint32_t port_intr;
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int underflow_occured = 0;
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struct snd_ps3_card_info *card = dev_id;
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if (!card->running) {
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update_reg(PS3_AUDIO_AX_IS, 0);
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update_reg(PS3_AUDIO_INTR_0, 0);
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return IRQ_HANDLED;
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}
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port_intr = read_reg(PS3_AUDIO_AX_IS);
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/*
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*serial buffer empty detected (every 4 times),
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*program next dma and kick it
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*/
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if (port_intr & PS3_AUDIO_AX_IE_ASOBEIE(0)) {
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write_reg(PS3_AUDIO_AX_IS, PS3_AUDIO_AX_IE_ASOBEIE(0));
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if (port_intr & PS3_AUDIO_AX_IE_ASOBUIE(0)) {
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write_reg(PS3_AUDIO_AX_IS, port_intr);
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underflow_occured = 1;
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}
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if (card->silent) {
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/* we are still in silent time */
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snd_ps3_program_dma(card,
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(underflow_occured) ?
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SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL :
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SND_PS3_DMA_FILLTYPE_SILENT_RUNNING);
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snd_ps3_kick_dma(card);
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card->silent--;
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} else {
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snd_ps3_program_dma(card,
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(underflow_occured) ?
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SND_PS3_DMA_FILLTYPE_FIRSTFILL :
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SND_PS3_DMA_FILLTYPE_RUNNING);
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snd_ps3_kick_dma(card);
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snd_pcm_period_elapsed(card->substream);
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}
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} else if (port_intr & PS3_AUDIO_AX_IE_ASOBUIE(0)) {
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write_reg(PS3_AUDIO_AX_IS, PS3_AUDIO_AX_IE_ASOBUIE(0));
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/*
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* serial out underflow, but buffer empty not detected.
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* in this case, fill fifo with 0 to recover. After
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* filling dummy data, serial automatically start to
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* consume them and then will generate normal buffer
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* empty interrupts.
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* If both buffer underflow and buffer empty are occurred,
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* it is better to do nomal data transfer than empty one
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*/
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snd_ps3_program_dma(card,
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SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL);
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snd_ps3_kick_dma(card);
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snd_ps3_program_dma(card,
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SND_PS3_DMA_FILLTYPE_SILENT_FIRSTFILL);
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snd_ps3_kick_dma(card);
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}
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/* clear interrupt cause */
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return IRQ_HANDLED;
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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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* av setting
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|
* 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;
|
|
}
|
|
|
|
/*
|
|
* 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;
|
|
int ret;
|
|
|
|
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;
|
|
}
|
|
|
|
memcpy(avs.avs_cs_info, ps3av_mode_cs_info, 8);
|
|
|
|
if (memcmp(&card->avs, &avs, sizeof(avs))) {
|
|
pr_debug("%s: after freq=%d width=%d\n", __func__,
|
|
card->avs.avs_audio_rate, card->avs.avs_audio_width);
|
|
|
|
card->avs = avs;
|
|
snd_ps3_change_avsetting(card);
|
|
ret = 0;
|
|
} else
|
|
ret = 1;
|
|
|
|
/* check CS non-audio bit and mute accordingly */
|
|
if (avs.avs_cs_info[0] & 0x02)
|
|
ps3av_audio_mute_analog(1); /* mute if non-audio */
|
|
else
|
|
ps3av_audio_mute_analog(0);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* PCM operators
|
|
*/
|
|
static int snd_ps3_pcm_open(struct snd_pcm_substream *substream)
|
|
{
|
|
struct snd_pcm_runtime *runtime = substream->runtime;
|
|
struct snd_ps3_card_info *card = snd_pcm_substream_chip(substream);
|
|
|
|
/* to retrieve substream/runtime in interrupt handler */
|
|
card->substream = substream;
|
|
|
|
runtime->hw = snd_ps3_pcm_hw;
|
|
|
|
card->start_delay = snd_ps3_start_delay;
|
|
|
|
/* mute off */
|
|
snd_ps3_mute(0); /* this function sleep */
|
|
|
|
snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
|
|
PS3_AUDIO_FIFO_STAGE_SIZE * 4 * 2);
|
|
return 0;
|
|
};
|
|
|
|
static int snd_ps3_pcm_close(struct snd_pcm_substream *substream)
|
|
{
|
|
/* mute on */
|
|
snd_ps3_mute(1);
|
|
return 0;
|
|
};
|
|
|
|
static int snd_ps3_delay_to_bytes(struct snd_pcm_substream *substream,
|
|
unsigned int delay_ms)
|
|
{
|
|
int ret;
|
|
int rate ;
|
|
|
|
rate = substream->runtime->rate;
|
|
ret = snd_pcm_format_size(substream->runtime->format,
|
|
rate * delay_ms / 1000)
|
|
* substream->runtime->channels;
|
|
|
|
pr_debug("%s: time=%d rate=%d bytes=%ld, frames=%d, ret=%d\n",
|
|
__func__,
|
|
delay_ms,
|
|
rate,
|
|
snd_pcm_format_size(substream->runtime->format, rate),
|
|
rate * delay_ms / 1000,
|
|
ret);
|
|
|
|
return ret;
|
|
};
|
|
|
|
static int snd_ps3_pcm_prepare(struct snd_pcm_substream *substream)
|
|
{
|
|
struct snd_pcm_runtime *runtime = substream->runtime;
|
|
struct snd_ps3_card_info *card = snd_pcm_substream_chip(substream);
|
|
unsigned long irqsave;
|
|
|
|
if (!snd_ps3_set_avsetting(substream)) {
|
|
/* some parameter changed */
|
|
write_reg(PS3_AUDIO_AX_IE,
|
|
PS3_AUDIO_AX_IE_ASOBEIE(0) |
|
|
PS3_AUDIO_AX_IE_ASOBUIE(0));
|
|
/*
|
|
* let SPDIF device re-lock with SPDIF signal,
|
|
* start with some silence
|
|
*/
|
|
card->silent = snd_ps3_delay_to_bytes(substream,
|
|
card->start_delay) /
|
|
(PS3_AUDIO_FIFO_STAGE_SIZE * 4); /* every 4 times */
|
|
}
|
|
|
|
/* restart ring buffer pointer */
|
|
spin_lock_irqsave(&card->dma_lock, irqsave);
|
|
{
|
|
card->dma_buffer_size = runtime->dma_bytes;
|
|
|
|
card->dma_last_transfer_vaddr[SND_PS3_CH_L] =
|
|
card->dma_next_transfer_vaddr[SND_PS3_CH_L] =
|
|
card->dma_start_vaddr[SND_PS3_CH_L] =
|
|
runtime->dma_area;
|
|
card->dma_start_bus_addr[SND_PS3_CH_L] = runtime->dma_addr;
|
|
|
|
card->dma_last_transfer_vaddr[SND_PS3_CH_R] =
|
|
card->dma_next_transfer_vaddr[SND_PS3_CH_R] =
|
|
card->dma_start_vaddr[SND_PS3_CH_R] =
|
|
runtime->dma_area + (runtime->dma_bytes / 2);
|
|
card->dma_start_bus_addr[SND_PS3_CH_R] =
|
|
runtime->dma_addr + (runtime->dma_bytes / 2);
|
|
|
|
pr_debug("%s: vaddr=%p bus=%#llx\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);
|
|
|
|
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 0;
|
|
};
|
|
|
|
/*
|
|
* 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;
|
|
};
|
|
|
|
/*
|
|
* SPDIF status bits controls
|
|
*/
|
|
static int snd_ps3_spdif_mask_info(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_info *uinfo)
|
|
{
|
|
uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
|
|
uinfo->count = 1;
|
|
return 0;
|
|
}
|
|
|
|
/* FIXME: ps3av_set_audio_mode() assumes only consumer mode */
|
|
static int snd_ps3_spdif_cmask_get(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
memset(ucontrol->value.iec958.status, 0xff, 8);
|
|
return 0;
|
|
}
|
|
|
|
static int snd_ps3_spdif_pmask_get(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static int snd_ps3_spdif_default_get(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
memcpy(ucontrol->value.iec958.status, ps3av_mode_cs_info, 8);
|
|
return 0;
|
|
}
|
|
|
|
static int snd_ps3_spdif_default_put(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
if (memcmp(ps3av_mode_cs_info, ucontrol->value.iec958.status, 8)) {
|
|
memcpy(ps3av_mode_cs_info, ucontrol->value.iec958.status, 8);
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static const struct snd_kcontrol_new spdif_ctls[] = {
|
|
{
|
|
.access = SNDRV_CTL_ELEM_ACCESS_READ,
|
|
.iface = SNDRV_CTL_ELEM_IFACE_PCM,
|
|
.name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, CON_MASK),
|
|
.info = snd_ps3_spdif_mask_info,
|
|
.get = snd_ps3_spdif_cmask_get,
|
|
},
|
|
{
|
|
.access = SNDRV_CTL_ELEM_ACCESS_READ,
|
|
.iface = SNDRV_CTL_ELEM_IFACE_PCM,
|
|
.name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, PRO_MASK),
|
|
.info = snd_ps3_spdif_mask_info,
|
|
.get = snd_ps3_spdif_pmask_get,
|
|
},
|
|
{
|
|
.iface = SNDRV_CTL_ELEM_IFACE_PCM,
|
|
.name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT),
|
|
.info = snd_ps3_spdif_mask_info,
|
|
.get = snd_ps3_spdif_default_get,
|
|
.put = snd_ps3_spdif_default_put,
|
|
},
|
|
};
|
|
|
|
static const struct snd_pcm_ops snd_ps3_pcm_spdif_ops = {
|
|
.open = snd_ps3_pcm_open,
|
|
.close = snd_ps3_pcm_close,
|
|
.prepare = snd_ps3_pcm_prepare,
|
|
.trigger = snd_ps3_pcm_trigger,
|
|
.pointer = snd_ps3_pcm_pointer,
|
|
};
|
|
|
|
|
|
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, 0,
|
|
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);
|
|
if (ret)
|
|
pr_info("%s: gpu_attribute failed %d\n", __func__,
|
|
ret);
|
|
}
|
|
|
|
static void snd_ps3_audio_fixup(struct snd_ps3_card_info *card)
|
|
{
|
|
/*
|
|
* avsetting driver seems to never change the following
|
|
* 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);
|
|
}
|
|
|
|
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;
|
|
memcpy(card->avs.avs_cs_info, ps3av_mode_cs_info, 8);
|
|
|
|
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;
|
|
}
|
|
|
|
static int snd_ps3_driver_probe(struct ps3_system_bus_device *dev)
|
|
{
|
|
int i, ret;
|
|
u64 lpar_addr, lpar_size;
|
|
static u64 dummy_mask;
|
|
|
|
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(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;
|
|
}
|
|
|
|
dummy_mask = DMA_BIT_MASK(32);
|
|
dev->core.dma_mask = &dummy_mask;
|
|
dma_set_coherent_mask(&dev->core, dummy_mask);
|
|
|
|
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 */
|
|
ret = snd_card_new(&dev->core, index, id, THIS_MODULE,
|
|
0, &the_card.card);
|
|
if (ret < 0)
|
|
goto clean_irq;
|
|
|
|
strcpy(the_card.card->driver, "PS3");
|
|
strcpy(the_card.card->shortname, "PS3");
|
|
strcpy(the_card.card->longname, "PS3 sound");
|
|
|
|
/* create control elements */
|
|
for (i = 0; i < ARRAY_SIZE(spdif_ctls); i++) {
|
|
ret = snd_ctl_add(the_card.card,
|
|
snd_ctl_new1(&spdif_ctls[i], &the_card));
|
|
if (ret < 0)
|
|
goto clean_card;
|
|
}
|
|
|
|
/* 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*/
|
|
snd_pcm_set_managed_buffer_all(the_card.pcm,
|
|
SNDRV_DMA_TYPE_DEV,
|
|
&dev->core,
|
|
SND_PS3_PCM_PREALLOC_SIZE,
|
|
SND_PS3_PCM_PREALLOC_SIZE);
|
|
|
|
/*
|
|
* allocate null buffer
|
|
* its size should be lager than PS3_AUDIO_FIFO_STAGE_SIZE * 2
|
|
* PAGE_SIZE is enogh
|
|
*/
|
|
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);
|
|
if (!the_card.null_buffer_start_vaddr) {
|
|
pr_info("%s: nullbuffer alloc failed\n", __func__);
|
|
ret = -ENOMEM;
|
|
goto clean_card;
|
|
}
|
|
pr_debug("%s: null vaddr=%p dma=%#llx\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_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 void snd_ps3_driver_remove(struct ps3_system_bus_device *dev)
|
|
{
|
|
int ret;
|
|
pr_info("%s:start id=%d\n", __func__, dev->match_id);
|
|
|
|
/*
|
|
* 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);
|
|
} /* 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,
|
|
},
|
|
};
|
|
|
|
|
|
/*
|
|
* 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;
|
|
}
|
|
module_init(snd_ps3_init);
|
|
|
|
static void __exit snd_ps3_exit(void)
|
|
{
|
|
ps3_system_bus_driver_unregister(&snd_ps3_bus_driver_info);
|
|
}
|
|
module_exit(snd_ps3_exit);
|
|
|
|
MODULE_LICENSE("GPL v2");
|
|
MODULE_DESCRIPTION("PS3 sound driver");
|
|
MODULE_AUTHOR("Sony Computer Entertainment Inc.");
|
|
MODULE_ALIAS(PS3_MODULE_ALIAS_SOUND);
|