2005-04-17 02:20:36 +04:00
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#ifndef __SOUND_CS4231_H
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#define __SOUND_CS4231_H
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/*
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2007-10-15 11:50:19 +04:00
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* Copyright (c) by Jaroslav Kysela <perex@perex.cz>
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2005-04-17 02:20:36 +04:00
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* Definitions for CS4231 & InterWave chips & compatible chips
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*
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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 as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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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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*/
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#include "control.h"
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#include "pcm.h"
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#include "timer.h"
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2007-09-04 15:24:14 +04:00
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#include "cs4231-regs.h"
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2005-04-17 02:20:36 +04:00
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/* defines for codec.mode */
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#define CS4231_MODE_NONE 0x0000
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#define CS4231_MODE_PLAY 0x0001
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#define CS4231_MODE_RECORD 0x0002
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#define CS4231_MODE_TIMER 0x0004
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#define CS4231_MODE_OPEN (CS4231_MODE_PLAY|CS4231_MODE_RECORD|CS4231_MODE_TIMER)
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/* defines for codec.hardware */
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#define CS4231_HW_DETECT 0x0000 /* let CS4231 driver detect chip */
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#define CS4231_HW_DETECT3 0x0001 /* allow mode 3 */
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#define CS4231_HW_TYPE_MASK 0xff00 /* type mask */
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#define CS4231_HW_CS4231_MASK 0x0100 /* CS4231 serie */
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#define CS4231_HW_CS4231 0x0100 /* CS4231 chip */
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#define CS4231_HW_CS4231A 0x0101 /* CS4231A chip */
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#define CS4231_HW_AD1845 0x0102 /* AD1845 chip */
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#define CS4231_HW_CS4232_MASK 0x0200 /* CS4232 serie (has control ports) */
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#define CS4231_HW_CS4232 0x0200 /* CS4232 */
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#define CS4231_HW_CS4232A 0x0201 /* CS4232A */
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#define CS4231_HW_CS4236 0x0202 /* CS4236 */
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#define CS4231_HW_CS4236B_MASK 0x0400 /* CS4236B serie (has extended control regs) */
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#define CS4231_HW_CS4235 0x0400 /* CS4235 - Crystal Clear (tm) stereo enhancement */
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#define CS4231_HW_CS4236B 0x0401 /* CS4236B */
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#define CS4231_HW_CS4237B 0x0402 /* CS4237B - SRS 3D */
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#define CS4231_HW_CS4238B 0x0403 /* CS4238B - QSOUND 3D */
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#define CS4231_HW_CS4239 0x0404 /* CS4239 - Crystal Clear (tm) stereo enhancement */
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/* compatible, but clones */
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#define CS4231_HW_INTERWAVE 0x1000 /* InterWave chip */
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2007-07-27 14:20:38 +04:00
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#define CS4231_HW_OPL3SA2 0x1101 /* OPL3-SA2 chip, similar to cs4231 */
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/* defines for codec.hwshare */
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#define CS4231_HWSHARE_IRQ (1<<0)
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#define CS4231_HWSHARE_DMA1 (1<<1)
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#define CS4231_HWSHARE_DMA2 (1<<2)
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2005-11-17 16:30:42 +03:00
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struct snd_cs4231 {
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unsigned long port; /* base i/o port */
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struct resource *res_port;
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unsigned long cport; /* control base i/o port (CS4236) */
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struct resource *res_cport;
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int irq; /* IRQ line */
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int dma1; /* playback DMA */
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int dma2; /* record DMA */
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unsigned short version; /* version of CODEC chip */
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unsigned short mode; /* see to CS4231_MODE_XXXX */
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unsigned short hardware; /* see to CS4231_HW_XXXX */
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unsigned short hwshare; /* shared resources */
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unsigned short single_dma:1, /* forced single DMA mode (GUS 16-bit daughter board) or dma1 == dma2 */
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ebus_flag:1; /* SPARC: EBUS present */
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2005-11-17 16:30:42 +03:00
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struct snd_card *card;
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struct snd_pcm *pcm;
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struct snd_pcm_substream *playback_substream;
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struct snd_pcm_substream *capture_substream;
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struct snd_timer *timer;
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2005-04-17 02:20:36 +04:00
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unsigned char image[32]; /* registers image */
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unsigned char eimage[32]; /* extended registers image */
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unsigned char cimage[16]; /* control registers image */
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int mce_bit;
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int calibrate_mute;
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int sw_3d_bit;
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unsigned int p_dma_size;
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unsigned int c_dma_size;
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spinlock_t reg_lock;
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2006-01-16 18:33:08 +03:00
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struct mutex mce_mutex;
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struct mutex open_mutex;
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2005-04-17 02:20:36 +04:00
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2005-11-17 16:30:42 +03:00
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int (*rate_constraint) (struct snd_pcm_runtime *runtime);
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void (*set_playback_format) (struct snd_cs4231 *chip, struct snd_pcm_hw_params *hw_params, unsigned char pdfr);
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void (*set_capture_format) (struct snd_cs4231 *chip, struct snd_pcm_hw_params *hw_params, unsigned char cdfr);
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void (*trigger) (struct snd_cs4231 *chip, unsigned int what, int start);
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#ifdef CONFIG_PM
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2005-11-17 16:30:42 +03:00
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void (*suspend) (struct snd_cs4231 *chip);
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void (*resume) (struct snd_cs4231 *chip);
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#endif
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void *dma_private_data;
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int (*claim_dma) (struct snd_cs4231 *chip, void *dma_private_data, int dma);
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int (*release_dma) (struct snd_cs4231 *chip, void *dma_private_data, int dma);
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2005-04-17 02:20:36 +04:00
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};
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/* exported functions */
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2005-11-17 16:30:42 +03:00
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void snd_cs4231_out(struct snd_cs4231 *chip, unsigned char reg, unsigned char val);
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unsigned char snd_cs4231_in(struct snd_cs4231 *chip, unsigned char reg);
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void snd_cs4236_ext_out(struct snd_cs4231 *chip, unsigned char reg, unsigned char val);
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unsigned char snd_cs4236_ext_in(struct snd_cs4231 *chip, unsigned char reg);
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void snd_cs4231_mce_up(struct snd_cs4231 *chip);
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void snd_cs4231_mce_down(struct snd_cs4231 *chip);
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2005-04-17 02:20:36 +04:00
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IRQ: Maintain regs pointer globally rather than passing to IRQ handlers
Maintain a per-CPU global "struct pt_regs *" variable which can be used instead
of passing regs around manually through all ~1800 interrupt handlers in the
Linux kernel.
The regs pointer is used in few places, but it potentially costs both stack
space and code to pass it around. On the FRV arch, removing the regs parameter
from all the genirq function results in a 20% speed up of the IRQ exit path
(ie: from leaving timer_interrupt() to leaving do_IRQ()).
Where appropriate, an arch may override the generic storage facility and do
something different with the variable. On FRV, for instance, the address is
maintained in GR28 at all times inside the kernel as part of general exception
handling.
Having looked over the code, it appears that the parameter may be handed down
through up to twenty or so layers of functions. Consider a USB character
device attached to a USB hub, attached to a USB controller that posts its
interrupts through a cascaded auxiliary interrupt controller. A character
device driver may want to pass regs to the sysrq handler through the input
layer which adds another few layers of parameter passing.
I've build this code with allyesconfig for x86_64 and i386. I've runtested the
main part of the code on FRV and i386, though I can't test most of the drivers.
I've also done partial conversion for powerpc and MIPS - these at least compile
with minimal configurations.
This will affect all archs. Mostly the changes should be relatively easy.
Take do_IRQ(), store the regs pointer at the beginning, saving the old one:
struct pt_regs *old_regs = set_irq_regs(regs);
And put the old one back at the end:
set_irq_regs(old_regs);
Don't pass regs through to generic_handle_irq() or __do_IRQ().
In timer_interrupt(), this sort of change will be necessary:
- update_process_times(user_mode(regs));
- profile_tick(CPU_PROFILING, regs);
+ update_process_times(user_mode(get_irq_regs()));
+ profile_tick(CPU_PROFILING);
I'd like to move update_process_times()'s use of get_irq_regs() into itself,
except that i386, alone of the archs, uses something other than user_mode().
Some notes on the interrupt handling in the drivers:
(*) input_dev() is now gone entirely. The regs pointer is no longer stored in
the input_dev struct.
(*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does
something different depending on whether it's been supplied with a regs
pointer or not.
(*) Various IRQ handler function pointers have been moved to type
irq_handler_t.
Signed-Off-By: David Howells <dhowells@redhat.com>
(cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
2006-10-05 17:55:46 +04:00
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irqreturn_t snd_cs4231_interrupt(int irq, void *dev_id);
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2005-04-17 02:20:36 +04:00
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2005-11-17 16:30:42 +03:00
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const char *snd_cs4231_chip_id(struct snd_cs4231 *chip);
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2005-04-17 02:20:36 +04:00
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2005-11-17 16:30:42 +03:00
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int snd_cs4231_create(struct snd_card *card,
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2005-04-17 02:20:36 +04:00
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unsigned long port,
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unsigned long cport,
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int irq, int dma1, int dma2,
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unsigned short hardware,
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unsigned short hwshare,
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struct snd_cs4231 ** rchip);
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int snd_cs4231_pcm(struct snd_cs4231 * chip, int device, struct snd_pcm **rpcm);
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int snd_cs4231_timer(struct snd_cs4231 * chip, int device, struct snd_timer **rtimer);
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int snd_cs4231_mixer(struct snd_cs4231 * chip);
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2005-04-17 02:20:36 +04:00
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2005-11-17 16:30:42 +03:00
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int snd_cs4236_create(struct snd_card *card,
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2005-04-17 02:20:36 +04:00
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unsigned long port,
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unsigned long cport,
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int irq, int dma1, int dma2,
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unsigned short hardware,
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unsigned short hwshare,
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struct snd_cs4231 ** rchip);
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int snd_cs4236_pcm(struct snd_cs4231 * chip, int device, struct snd_pcm **rpcm);
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int snd_cs4236_mixer(struct snd_cs4231 * chip);
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2005-04-17 02:20:36 +04:00
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/*
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* mixer library
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*/
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#define CS4231_SINGLE(xname, xindex, reg, shift, mask, invert) \
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{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
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.info = snd_cs4231_info_single, \
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.get = snd_cs4231_get_single, .put = snd_cs4231_put_single, \
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.private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
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2005-11-17 16:30:42 +03:00
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int snd_cs4231_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo);
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int snd_cs4231_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol);
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int snd_cs4231_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol);
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2005-04-17 02:20:36 +04:00
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#define CS4231_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
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{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
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.info = snd_cs4231_info_double, \
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.get = snd_cs4231_get_double, .put = snd_cs4231_put_double, \
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.private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22) }
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2005-11-17 16:30:42 +03:00
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int snd_cs4231_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo);
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int snd_cs4231_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol);
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int snd_cs4231_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol);
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2005-04-17 02:20:36 +04:00
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#endif /* __SOUND_CS4231_H */
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