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authorAdrian Bunk <bunk@stusta.de>2006-10-04 02:17:22 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-10-04 07:55:32 -0700
commitd56b9b9c464a10ab1ee51a4c6190a2b57b8ef7a6 (patch)
treea48388734053900a8379042757ee241d1e9dfc7b /sound/oss/maestro3.c
parent595182bcdf64fbfd7ae22c67ea6081b7d387d246 (diff)
[PATCH] The scheduled removal of some OSS drivers
This patch contains the scheduled removal of OSS drivers that: - have ALSA drivers for the same hardware without known regressions and - whose Kconfig options have been removed in 2.6.17. [michal.k.k.piotrowski@gmail.com: build fix] Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Michal Piotrowski <michal.k.k.piotrowski@gmail.com> Cc: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'sound/oss/maestro3.c')
-rw-r--r--sound/oss/maestro3.c2969
1 files changed, 0 insertions, 2969 deletions
diff --git a/sound/oss/maestro3.c b/sound/oss/maestro3.c
deleted file mode 100644
index 5548e3cff7c..00000000000
--- a/sound/oss/maestro3.c
+++ /dev/null
@@ -1,2969 +0,0 @@
-/*****************************************************************************
- *
- * ESS Maestro3/Allegro driver for Linux 2.4.x
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * (c) Copyright 2000 Zach Brown <zab@zabbo.net>
- *
- * I need to thank many people for helping make this driver happen.
- * As always, Eric Brombaugh was a hacking machine and killed many bugs
- * that I was too dumb to notice. Howard Kim at ESS provided reference boards
- * and as much docs as he could. Todd and Mick at Dell tested snapshots on
- * an army of laptops. msw and deviant at Red Hat also humoured me by hanging
- * their laptops every few hours in the name of science.
- *
- * Shouts go out to Mike "DJ XPCom" Ang.
- *
- * History
- * v1.23 - Jun 5 2002 - Michael Olson <olson@cs.odu.edu>
- * added a module option to allow selection of GPIO pin number
- * for external amp
- * v1.22 - Feb 28 2001 - Zach Brown <zab@zabbo.net>
- * allocate mem at insmod/setup, rather than open
- * limit pci dma addresses to 28bit, thanks guys.
- * v1.21 - Feb 04 2001 - Zach Brown <zab@zabbo.net>
- * fix up really dumb notifier -> suspend oops
- * v1.20 - Jan 30 2001 - Zach Brown <zab@zabbo.net>
- * get rid of pm callback and use pci_dev suspend/resume instead
- * m3_probe cleanups, including pm oops think-o
- * v1.10 - Jan 6 2001 - Zach Brown <zab@zabbo.net>
- * revert to lame remap_page_range mmap() just to make it work
- * record mmap fixed.
- * fix up incredibly broken open/release resource management
- * duh. fix record format setting.
- * add SMP locking and cleanup formatting here and there
- * v1.00 - Dec 16 2000 - Zach Brown <zab@zabbo.net>
- * port to sexy 2.4 interfaces
- * properly align instance allocations so recording works
- * clean up function namespace a little :/
- * update PCI IDs based on mail from ESS
- * arbitrarily bump version number to show its 2.4 now,
- * 2.2 will stay 0., oss_audio port gets 2.
- * v0.03 - Nov 05 2000 - Zach Brown <zab@zabbo.net>
- * disable recording but allow dsp to be opened read
- * pull out most silly compat defines
- * v0.02 - Nov 04 2000 - Zach Brown <zab@zabbo.net>
- * changed clocking setup for m3, slowdown fixed.
- * codec reset is hopefully reliable now
- * rudimentary apm/power management makes suspend/resume work
- * v0.01 - Oct 31 2000 - Zach Brown <zab@zabbo.net>
- * first release
- * v0.00 - Sep 09 2000 - Zach Brown <zab@zabbo.net>
- * first pass derivation from maestro.c
- *
- * TODO
- * in/out allocated contiguously so fullduplex mmap will work?
- * no beep on init (mute)
- * resetup msrc data memory if freq changes?
- *
- * --
- *
- * Allow me to ramble a bit about the m3 architecture. The core of the
- * chip is the 'assp', the custom ESS dsp that runs the show. It has
- * a small amount of code and data ram. ESS drops binary dsp code images
- * on our heads, but we don't get to see specs on the dsp.
- *
- * The constant piece of code on the dsp is the 'kernel'. It also has a
- * chunk of the dsp memory that is statically set aside for its control
- * info. This is the KDATA defines in maestro3.h. Part of its core
- * data is a list of code addresses that point to the pieces of DSP code
- * that it should walk through in its loop. These other pieces of code
- * do the real work. The kernel presumably jumps into each of them in turn.
- * These code images tend to have their own data area, and one can have
- * multiple data areas representing different states for each of the 'client
- * instance' code portions. There is generally a list in the kernel data
- * that points to the data instances for a given piece of code.
- *
- * We've only been given the binary image for the 'minisrc', mini sample
- * rate converter. This is rather annoying because it limits the work
- * we can do on the dsp, but it also greatly simplifies the job of managing
- * dsp data memory for the code and data for our playing streams :). We
- * statically allocate the minisrc code into a region we 'know' to be free
- * based on the map of the binary kernel image we're loading. We also
- * statically allocate the data areas for the maximum number of pcm streams
- * we can be dealing with. This max is set by the length of the static list
- * in the kernel data that records the number of minisrc data regions we
- * can have. Thats right, all software dsp mixing with static code list
- * limits. Rock.
- *
- * How sound goes in and out is still a relative mystery. It appears
- * that the dsp has the ability to get input and output through various
- * 'connections'. To do IO from or to a connection, you put the address
- * of the minisrc client area in the static kernel data lists for that
- * input or output. so for pcm -> dsp -> mixer, we put the minisrc data
- * instance in the DMA list and also in the list for the mixer. I guess
- * it Just Knows which is in/out, and we give some dma control info that
- * helps. There are all sorts of cool inputs/outputs that it seems we can't
- * use without dsp code images that know how to use them.
- *
- * So at init time we preload all the memory allocation stuff and set some
- * system wide parameters. When we really get a sound to play we build
- * up its minisrc header (stream parameters, buffer addresses, input/output
- * settings). Then we throw its header on the various lists. We also
- * tickle some KDATA settings that ask the assp to raise clock interrupts
- * and do some amount of software mixing before handing data to the ac97.
- *
- * Sorry for the vague details. Feel free to ask Eric or myself if you
- * happen to be trying to use this driver elsewhere. Please accept my
- * apologies for the quality of the OSS support code, its passed through
- * too many hands now and desperately wants to be rethought.
- */
-
-/*****************************************************************************/
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/ctype.h>
-#include <linux/ioport.h>
-#include <linux/sched.h>
-#include <linux/delay.h>
-#include <linux/sound.h>
-#include <linux/slab.h>
-#include <linux/soundcard.h>
-#include <linux/pci.h>
-#include <linux/vmalloc.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/poll.h>
-#include <linux/reboot.h>
-#include <linux/spinlock.h>
-#include <linux/ac97_codec.h>
-#include <linux/wait.h>
-#include <linux/mutex.h>
-
-
-#include <asm/io.h>
-#include <asm/dma.h>
-#include <asm/uaccess.h>
-
-#include "maestro3.h"
-
-#define M_DEBUG 1
-
-#define DRIVER_VERSION "1.23"
-#define M3_MODULE_NAME "maestro3"
-#define PFX M3_MODULE_NAME ": "
-
-#define M3_STATE_MAGIC 0x734d724d
-#define M3_CARD_MAGIC 0x646e6f50
-
-#define ESS_FMT_STEREO 0x01
-#define ESS_FMT_16BIT 0x02
-#define ESS_FMT_MASK 0x03
-#define ESS_DAC_SHIFT 0
-#define ESS_ADC_SHIFT 4
-
-#define DAC_RUNNING 1
-#define ADC_RUNNING 2
-
-#define SND_DEV_DSP16 5
-
-#ifdef M_DEBUG
-static int debug;
-#define DPMOD 1 /* per module load */
-#define DPSTR 2 /* per 'stream' */
-#define DPSYS 3 /* per syscall */
-#define DPCRAP 4 /* stuff the user shouldn't see unless they're really debuggin */
-#define DPINT 5 /* per interrupt, LOTS */
-#define DPRINTK(DP, args...) {if (debug >= (DP)) printk(KERN_DEBUG PFX args);}
-#else
-#define DPRINTK(x)
-#endif
-
-struct m3_list {
- int curlen;
- u16 mem_addr;
- int max;
-};
-
-static int external_amp = 1;
-static int gpio_pin = -1;
-
-struct m3_state {
- unsigned int magic;
- struct m3_card *card;
- unsigned char fmt, enable;
-
- int index;
-
- /* this locks around the oss state in the driver */
- /* no, this lock is removed - only use card->lock */
- /* otherwise: against what are you protecting on SMP
- when irqhandler uses s->lock
- and m3_assp_read uses card->lock ?
- */
- struct mutex open_mutex;
- wait_queue_head_t open_wait;
- mode_t open_mode;
-
- int dev_audio;
-
- struct assp_instance {
- u16 code, data;
- } dac_inst, adc_inst;
-
- /* should be in dmabuf */
- unsigned int rateadc, ratedac;
-
- struct dmabuf {
- void *rawbuf;
- unsigned buforder;
- unsigned numfrag;
- unsigned fragshift;
- unsigned hwptr, swptr;
- unsigned total_bytes;
- int count;
- unsigned error; /* over/underrun */
- wait_queue_head_t wait;
- /* redundant, but makes calculations easier */
- unsigned fragsize;
- unsigned dmasize;
- unsigned fragsamples;
- /* OSS stuff */
- unsigned mapped:1;
- unsigned ready:1;
- unsigned endcleared:1;
- unsigned ossfragshift;
- int ossmaxfrags;
- unsigned subdivision;
- /* new in m3 */
- int mixer_index, dma_index, msrc_index, adc1_index;
- int in_lists;
- /* 2.4.. */
- dma_addr_t handle;
-
- } dma_dac, dma_adc;
-};
-
-struct m3_card {
- unsigned int magic;
-
- struct m3_card *next;
-
- struct ac97_codec *ac97;
- spinlock_t ac97_lock;
-
- int card_type;
-
-#define NR_DSPS 1
-#define MAX_DSPS NR_DSPS
- struct m3_state channels[MAX_DSPS];
-
- /* this locks around the physical registers on the card */
- spinlock_t lock;
-
- /* hardware resources */
- struct pci_dev *pcidev;
- u32 iobase;
- u32 irq;
-
- int dacs_active;
-
- int timer_users;
-
- struct m3_list msrc_list,
- mixer_list,
- adc1_list,
- dma_list;
-
- /* for storing reset state..*/
- u8 reset_state;
-
- u16 *suspend_mem;
- int in_suspend;
- wait_queue_head_t suspend_queue;
-};
-
-/*
- * an arbitrary volume we set the internal
- * volume settings to so that the ac97 volume
- * range is a little less insane. 0x7fff is
- * max.
- */
-#define ARB_VOLUME ( 0x6800 )
-
-static const unsigned sample_shift[] = { 0, 1, 1, 2 };
-
-enum {
- ESS_ALLEGRO,
- ESS_MAESTRO3,
- /*
- * a maestro3 with 'hardware strapping', only
- * found inside ESS?
- */
- ESS_MAESTRO3HW,
-};
-
-static char *card_names[] = {
- [ESS_ALLEGRO] = "Allegro",
- [ESS_MAESTRO3] = "Maestro3(i)",
- [ESS_MAESTRO3HW] = "Maestro3(i)hw"
-};
-
-#ifndef PCI_VENDOR_ESS
-#define PCI_VENDOR_ESS 0x125D
-#endif
-
-#define M3_DEVICE(DEV, TYPE) \
-{ \
-.vendor = PCI_VENDOR_ESS, \
-.device = DEV, \
-.subvendor = PCI_ANY_ID, \
-.subdevice = PCI_ANY_ID, \
-.class = PCI_CLASS_MULTIMEDIA_AUDIO << 8, \
-.class_mask = 0xffff << 8, \
-.driver_data = TYPE, \
-}
-
-static struct pci_device_id m3_id_table[] = {
- M3_DEVICE(0x1988, ESS_ALLEGRO),
- M3_DEVICE(0x1998, ESS_MAESTRO3),
- M3_DEVICE(0x199a, ESS_MAESTRO3HW),
- {0,}
-};
-
-MODULE_DEVICE_TABLE (pci, m3_id_table);
-
-/*
- * reports seem to indicate that the m3 is limited
- * to 28bit bus addresses. aaaargggh...
- */
-#define M3_PCI_DMA_MASK 0x0fffffff
-
-static unsigned
-ld2(unsigned int x)
-{
- unsigned r = 0;
-
- if (x >= 0x10000) {
- x >>= 16;
- r += 16;
- }
- if (x >= 0x100) {
- x >>= 8;
- r += 8;
- }
- if (x >= 0x10) {
- x >>= 4;
- r += 4;
- }
- if (x >= 4) {
- x >>= 2;
- r += 2;
- }
- if (x >= 2)
- r++;
- return r;
-}
-
-static struct m3_card *devs;
-
-/*
- * I'm not very good at laying out functions in a file :)
- */
-static int m3_notifier(struct notifier_block *nb, unsigned long event, void *buf);
-static int m3_suspend(struct pci_dev *pci_dev, pm_message_t state);
-static void check_suspend(struct m3_card *card);
-
-static struct notifier_block m3_reboot_nb = {
- .notifier_call = m3_notifier,
-};
-
-static void m3_outw(struct m3_card *card,
- u16 value, unsigned long reg)
-{
- check_suspend(card);
- outw(value, card->iobase + reg);
-}
-
-static u16 m3_inw(struct m3_card *card, unsigned long reg)
-{
- check_suspend(card);
- return inw(card->iobase + reg);
-}
-static void m3_outb(struct m3_card *card,
- u8 value, unsigned long reg)
-{
- check_suspend(card);
- outb(value, card->iobase + reg);
-}
-static u8 m3_inb(struct m3_card *card, unsigned long reg)
-{
- check_suspend(card);
- return inb(card->iobase + reg);
-}
-
-/*
- * access 16bit words to the code or data regions of the dsp's memory.
- * index addresses 16bit words.
- */
-static u16 __m3_assp_read(struct m3_card *card, u16 region, u16 index)
-{
- m3_outw(card, region & MEMTYPE_MASK, DSP_PORT_MEMORY_TYPE);
- m3_outw(card, index, DSP_PORT_MEMORY_INDEX);
- return m3_inw(card, DSP_PORT_MEMORY_DATA);
-}
-static u16 m3_assp_read(struct m3_card *card, u16 region, u16 index)
-{
- unsigned long flags;
- u16 ret;
-
- spin_lock_irqsave(&(card->lock), flags);
- ret = __m3_assp_read(card, region, index);
- spin_unlock_irqrestore(&(card->lock), flags);
-
- return ret;
-}
-
-static void __m3_assp_write(struct m3_card *card,
- u16 region, u16 index, u16 data)
-{
- m3_outw(card, region & MEMTYPE_MASK, DSP_PORT_MEMORY_TYPE);
- m3_outw(card, index, DSP_PORT_MEMORY_INDEX);
- m3_outw(card, data, DSP_PORT_MEMORY_DATA);
-}
-static void m3_assp_write(struct m3_card *card,
- u16 region, u16 index, u16 data)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&(card->lock), flags);
- __m3_assp_write(card, region, index, data);
- spin_unlock_irqrestore(&(card->lock), flags);
-}
-
-static void m3_assp_halt(struct m3_card *card)
-{
- card->reset_state = m3_inb(card, DSP_PORT_CONTROL_REG_B) & ~REGB_STOP_CLOCK;
- mdelay(10);
- m3_outb(card, card->reset_state & ~REGB_ENABLE_RESET, DSP_PORT_CONTROL_REG_B);
-}
-
-static void m3_assp_continue(struct m3_card *card)
-{
- m3_outb(card, card->reset_state | REGB_ENABLE_RESET, DSP_PORT_CONTROL_REG_B);
-}
-
-/*
- * This makes me sad. the maestro3 has lists
- * internally that must be packed.. 0 terminates,
- * apparently, or maybe all unused entries have
- * to be 0, the lists have static lengths set
- * by the binary code images.
- */
-
-static int m3_add_list(struct m3_card *card,
- struct m3_list *list, u16 val)
-{
- DPRINTK(DPSTR, "adding val 0x%x to list 0x%p at pos %d\n",
- val, list, list->curlen);
-
- m3_assp_write(card, MEMTYPE_INTERNAL_DATA,
- list->mem_addr + list->curlen,
- val);
-
- return list->curlen++;
-
-}
-
-static void m3_remove_list(struct m3_card *card,
- struct m3_list *list, int index)
-{
- u16 val;
- int lastindex = list->curlen - 1;
-
- DPRINTK(DPSTR, "removing ind %d from list 0x%p\n",
- index, list);
-
- if(index != lastindex) {
- val = m3_assp_read(card, MEMTYPE_INTERNAL_DATA,
- list->mem_addr + lastindex);
- m3_assp_write(card, MEMTYPE_INTERNAL_DATA,
- list->mem_addr + index,
- val);
- }
-
- m3_assp_write(card, MEMTYPE_INTERNAL_DATA,
- list->mem_addr + lastindex,
- 0);
-
- list->curlen--;
-}
-
-static void set_fmt(struct m3_state *s, unsigned char mask, unsigned char data)
-{
- int tmp;
-
- s->fmt = (s->fmt & mask) | data;
-
- tmp = (s->fmt >> ESS_DAC_SHIFT) & ESS_FMT_MASK;
-
- /* write to 'mono' word */
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- s->dac_inst.data + SRC3_DIRECTION_OFFSET + 1,
- (tmp & ESS_FMT_STEREO) ? 0 : 1);
- /* write to '8bit' word */
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- s->dac_inst.data + SRC3_DIRECTION_OFFSET + 2,
- (tmp & ESS_FMT_16BIT) ? 0 : 1);
-
- tmp = (s->fmt >> ESS_ADC_SHIFT) & ESS_FMT_MASK;
-
- /* write to 'mono' word */
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- s->adc_inst.data + SRC3_DIRECTION_OFFSET + 1,
- (tmp & ESS_FMT_STEREO) ? 0 : 1);
- /* write to '8bit' word */
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- s->adc_inst.data + SRC3_DIRECTION_OFFSET + 2,
- (tmp & ESS_FMT_16BIT) ? 0 : 1);
-}
-
-static void set_dac_rate(struct m3_state *s, unsigned int rate)
-{
- u32 freq;
-
- if (rate > 48000)
- rate = 48000;
- if (rate < 8000)
- rate = 8000;
-
- s->ratedac = rate;
-
- freq = ((rate << 15) + 24000 ) / 48000;
- if(freq)
- freq--;
-
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- s->dac_inst.data + CDATA_FREQUENCY,
- freq);
-}
-
-static void set_adc_rate(struct m3_state *s, unsigned int rate)
-{
- u32 freq;
-
- if (rate > 48000)
- rate = 48000;
- if (rate < 8000)
- rate = 8000;
-
- s->rateadc = rate;
-
- freq = ((rate << 15) + 24000 ) / 48000;
- if(freq)
- freq--;
-
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- s->adc_inst.data + CDATA_FREQUENCY,
- freq);
-}
-
-static void inc_timer_users(struct m3_card *card)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&card->lock, flags);
-
- card->timer_users++;
- DPRINTK(DPSYS, "inc timer users now %d\n",
- card->timer_users);
- if(card->timer_users != 1)
- goto out;
-
- __m3_assp_write(card, MEMTYPE_INTERNAL_DATA,
- KDATA_TIMER_COUNT_RELOAD,
- 240 ) ;
-
- __m3_assp_write(card, MEMTYPE_INTERNAL_DATA,
- KDATA_TIMER_COUNT_CURRENT,
- 240 ) ;
-
- m3_outw(card,
- m3_inw(card, HOST_INT_CTRL) | CLKRUN_GEN_ENABLE,
- HOST_INT_CTRL);
-out:
- spin_unlock_irqrestore(&card->lock, flags);
-}
-
-static void dec_timer_users(struct m3_card *card)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&card->lock, flags);
-
- card->timer_users--;
- DPRINTK(DPSYS, "dec timer users now %d\n",
- card->timer_users);
- if(card->timer_users > 0 )
- goto out;
-
- __m3_assp_write(card, MEMTYPE_INTERNAL_DATA,
- KDATA_TIMER_COUNT_RELOAD,
- 0 ) ;
-
- __m3_assp_write(card, MEMTYPE_INTERNAL_DATA,
- KDATA_TIMER_COUNT_CURRENT,
- 0 ) ;
-
- m3_outw(card, m3_inw(card, HOST_INT_CTRL) & ~CLKRUN_GEN_ENABLE,
- HOST_INT_CTRL);
-out:
- spin_unlock_irqrestore(&card->lock, flags);
-}
-
-/*
- * {start,stop}_{adc,dac} should be called
- * while holding the 'state' lock and they
- * will try to grab the 'card' lock..
- */
-static void stop_adc(struct m3_state *s)
-{
- if (! (s->enable & ADC_RUNNING))
- return;
-
- s->enable &= ~ADC_RUNNING;
- dec_timer_users(s->card);
-
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- s->adc_inst.data + CDATA_INSTANCE_READY, 0);
-
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- KDATA_ADC1_REQUEST, 0);
-}
-
-static void stop_dac(struct m3_state *s)
-{
- if (! (s->enable & DAC_RUNNING))
- return;
-
- DPRINTK(DPSYS, "stop_dac()\n");
-
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- s->dac_inst.data + CDATA_INSTANCE_READY, 0);
-
- s->enable &= ~DAC_RUNNING;
- s->card->dacs_active--;
- dec_timer_users(s->card);
-
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- KDATA_MIXER_TASK_NUMBER,
- s->card->dacs_active ) ;
-}
-
-static void start_dac(struct m3_state *s)
-{
- if( (!s->dma_dac.mapped && s->dma_dac.count < 1) ||
- !s->dma_dac.ready ||
- (s->enable & DAC_RUNNING))
- return;
-
- DPRINTK(DPSYS, "start_dac()\n");
-
- s->enable |= DAC_RUNNING;
- s->card->dacs_active++;
- inc_timer_users(s->card);
-
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- s->dac_inst.data + CDATA_INSTANCE_READY, 1);
-
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- KDATA_MIXER_TASK_NUMBER,
- s->card->dacs_active ) ;
-}
-
-static void start_adc(struct m3_state *s)
-{
- if ((! s->dma_adc.mapped &&
- s->dma_adc.count >= (signed)(s->dma_adc.dmasize - 2*s->dma_adc.fragsize))
- || !s->dma_adc.ready
- || (s->enable & ADC_RUNNING) )
- return;
-
- DPRINTK(DPSYS, "start_adc()\n");
-
- s->enable |= ADC_RUNNING;
- inc_timer_users(s->card);
-
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- KDATA_ADC1_REQUEST, 1);
-
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- s->adc_inst.data + CDATA_INSTANCE_READY, 1);
-}
-
-static struct play_vals {
- u16 addr, val;
-} pv[] = {
- {CDATA_LEFT_VOLUME, ARB_VOLUME},
- {CDATA_RIGHT_VOLUME, ARB_VOLUME},
- {SRC3_DIRECTION_OFFSET, 0} ,
- /* +1, +2 are stereo/16 bit */
- {SRC3_DIRECTION_OFFSET + 3, 0x0000}, /* fraction? */
- {SRC3_DIRECTION_OFFSET + 4, 0}, /* first l */
- {SRC3_DIRECTION_OFFSET + 5, 0}, /* first r */
- {SRC3_DIRECTION_OFFSET + 6, 0}, /* second l */
- {SRC3_DIRECTION_OFFSET + 7, 0}, /* second r */
- {SRC3_DIRECTION_OFFSET + 8, 0}, /* delta l */
- {SRC3_DIRECTION_OFFSET + 9, 0}, /* delta r */
- {SRC3_DIRECTION_OFFSET + 10, 0x8000}, /* round */
- {SRC3_DIRECTION_OFFSET + 11, 0xFF00}, /* higher bute mark */
- {SRC3_DIRECTION_OFFSET + 13, 0}, /* temp0 */
- {SRC3_DIRECTION_OFFSET + 14, 0}, /* c fraction */
- {SRC3_DIRECTION_OFFSET + 15, 0}, /* counter */
- {SRC3_DIRECTION_OFFSET + 16, 8}, /* numin */
- {SRC3_DIRECTION_OFFSET + 17, 50*2}, /* numout */
- {SRC3_DIRECTION_OFFSET + 18, MINISRC_BIQUAD_STAGE - 1}, /* numstage */
- {SRC3_DIRECTION_OFFSET + 20, 0}, /* filtertap */
- {SRC3_DIRECTION_OFFSET + 21, 0} /* booster */
-};
-
-
-/* the mode passed should be already shifted and masked */
-static void m3_play_setup(struct m3_state *s, int mode, u32 rate, void *buffer, int size)
-{
- int dsp_in_size = MINISRC_IN_BUFFER_SIZE - (0x20 * 2);
- int dsp_out_size = MINISRC_OUT_BUFFER_SIZE - (0x20 * 2);
- int dsp_in_buffer = s->dac_inst.data + (MINISRC_TMP_BUFFER_SIZE / 2);
- int dsp_out_buffer = dsp_in_buffer + (dsp_in_size / 2) + 1;
- struct dmabuf *db = &s->dma_dac;
- int i;
-
- DPRINTK(DPSTR, "mode=%d rate=%d buf=%p len=%d.\n",
- mode, rate, buffer, size);
-
-#define LO(x) ((x) & 0xffff)
-#define HI(x) LO((x) >> 16)
-
- /* host dma buffer pointers */
-
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- s->dac_inst.data + CDATA_HOST_SRC_ADDRL,
- LO(virt_to_bus(buffer)));
-
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- s->dac_inst.data + CDATA_HOST_SRC_ADDRH,
- HI(virt_to_bus(buffer)));
-
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- s->dac_inst.data + CDATA_HOST_SRC_END_PLUS_1L,
- LO(virt_to_bus(buffer) + size));
-
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- s->dac_inst.data + CDATA_HOST_SRC_END_PLUS_1H,
- HI(virt_to_bus(buffer) + size));
-
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- s->dac_inst.data + CDATA_HOST_SRC_CURRENTL,
- LO(virt_to_bus(buffer)));
-
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- s->dac_inst.data + CDATA_HOST_SRC_CURRENTH,
- HI(virt_to_bus(buffer)));
-#undef LO
-#undef HI
-
- /* dsp buffers */
-
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- s->dac_inst.data + CDATA_IN_BUF_BEGIN,
- dsp_in_buffer);
-
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- s->dac_inst.data + CDATA_IN_BUF_END_PLUS_1,
- dsp_in_buffer + (dsp_in_size / 2));
-
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- s->dac_inst.data + CDATA_IN_BUF_HEAD,
- dsp_in_buffer);
-
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- s->dac_inst.data + CDATA_IN_BUF_TAIL,
- dsp_in_buffer);
-
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- s->dac_inst.data + CDATA_OUT_BUF_BEGIN,
- dsp_out_buffer);
-
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- s->dac_inst.data + CDATA_OUT_BUF_END_PLUS_1,
- dsp_out_buffer + (dsp_out_size / 2));
-
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- s->dac_inst.data + CDATA_OUT_BUF_HEAD,
- dsp_out_buffer);
-
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- s->dac_inst.data + CDATA_OUT_BUF_TAIL,
- dsp_out_buffer);
-
- /*
- * some per client initializers
- */
-
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- s->dac_inst.data + SRC3_DIRECTION_OFFSET + 12,
- s->dac_inst.data + 40 + 8);
-
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- s->dac_inst.data + SRC3_DIRECTION_OFFSET + 19,
- s->dac_inst.code + MINISRC_COEF_LOC);
-
- /* enable or disable low pass filter? */
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- s->dac_inst.data + SRC3_DIRECTION_OFFSET + 22,
- s->ratedac > 45000 ? 0xff : 0 );
-
- /* tell it which way dma is going? */
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- s->dac_inst.data + CDATA_DMA_CONTROL,
- DMACONTROL_AUTOREPEAT + DMAC_PAGE3_SELECTOR + DMAC_BLOCKF_SELECTOR);
-
- /*
- * set an armload of static initializers
- */
- for(i = 0 ; i < (sizeof(pv) / sizeof(pv[0])) ; i++)
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- s->dac_inst.data + pv[i].addr, pv[i].val);
-
- /*
- * put us in the lists if we're not already there
- */
-
- if(db->in_lists == 0) {
-
- db->msrc_index = m3_add_list(s->card, &s->card->msrc_list,
- s->dac_inst.data >> DP_SHIFT_COUNT);
-
- db->dma_index = m3_add_list(s->card, &s->card->dma_list,
- s->dac_inst.data >> DP_SHIFT_COUNT);
-
- db->mixer_index = m3_add_list(s->card, &s->card->mixer_list,
- s->dac_inst.data >> DP_SHIFT_COUNT);
-
- db->in_lists = 1;
- }
-
- set_dac_rate(s,rate);
- start_dac(s);
-}
-
-/*
- * Native record driver
- */
-static struct rec_vals {
- u16 addr, val;
-} rv[] = {
- {CDATA_LEFT_VOLUME, ARB_VOLUME},
- {CDATA_RIGHT_VOLUME, ARB_VOLUME},
- {SRC3_DIRECTION_OFFSET, 1} ,
- /* +1, +2 are stereo/16 bit */
- {SRC3_DIRECTION_OFFSET + 3, 0x0000}, /* fraction? */
- {SRC3_DIRECTION_OFFSET + 4, 0}, /* first l */
- {SRC3_DIRECTION_OFFSET + 5, 0}, /* first r */
- {SRC3_DIRECTION_OFFSET + 6, 0}, /* second l */
- {SRC3_DIRECTION_OFFSET + 7, 0}, /* second r */
- {SRC3_DIRECTION_OFFSET + 8, 0}, /* delta l */
- {SRC3_DIRECTION_OFFSET + 9, 0}, /* delta r */
- {SRC3_DIRECTION_OFFSET + 10, 0x8000}, /* round */
- {SRC3_DIRECTION_OFFSET + 11, 0xFF00}, /* higher bute mark */
- {SRC3_DIRECTION_OFFSET + 13, 0}, /* temp0 */
- {SRC3_DIRECTION_OFFSET + 14, 0}, /* c fraction */
- {SRC3_DIRECTION_OFFSET + 15, 0}, /* counter */
- {SRC3_DIRECTION_OFFSET + 16, 50},/* numin */
- {SRC3_DIRECTION_OFFSET + 17, 8}, /* numout */
- {SRC3_DIRECTION_OFFSET + 18, 0}, /* numstage */
- {SRC3_DIRECTION_OFFSET + 19, 0}, /* coef */
- {SRC3_DIRECTION_OFFSET + 20, 0}, /* filtertap */
- {SRC3_DIRECTION_OFFSET + 21, 0}, /* booster */
- {SRC3_DIRECTION_OFFSET + 22, 0xff} /* skip lpf */
-};
-
-/* again, passed mode is alrady shifted/masked */
-static void m3_rec_setup(struct m3_state *s, int mode, u32 rate, void *buffer, int size)
-{
- int dsp_in_size = MINISRC_IN_BUFFER_SIZE + (0x10 * 2);
- int dsp_out_size = MINISRC_OUT_BUFFER_SIZE - (0x10 * 2);
- int dsp_in_buffer = s->adc_inst.data + (MINISRC_TMP_BUFFER_SIZE / 2);
- int dsp_out_buffer = dsp_in_buffer + (dsp_in_size / 2) + 1;
- struct dmabuf *db = &s->dma_adc;
- int i;
-
- DPRINTK(DPSTR, "rec_setup mode=%d rate=%d buf=%p len=%d.\n",
- mode, rate, buffer, size);
-
-#define LO(x) ((x) & 0xffff)
-#define HI(x) LO((x) >> 16)
-
- /* host dma buffer pointers */
-
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- s->adc_inst.data + CDATA_HOST_SRC_ADDRL,
- LO(virt_to_bus(buffer)));
-
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- s->adc_inst.data + CDATA_HOST_SRC_ADDRH,
- HI(virt_to_bus(buffer)));
-
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- s->adc_inst.data + CDATA_HOST_SRC_END_PLUS_1L,
- LO(virt_to_bus(buffer) + size));
-
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- s->adc_inst.data + CDATA_HOST_SRC_END_PLUS_1H,
- HI(virt_to_bus(buffer) + size));
-
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- s->adc_inst.data + CDATA_HOST_SRC_CURRENTL,
- LO(virt_to_bus(buffer)));
-
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- s->adc_inst.data + CDATA_HOST_SRC_CURRENTH,
- HI(virt_to_bus(buffer)));
-#undef LO
-#undef HI
-
- /* dsp buffers */
-
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- s->adc_inst.data + CDATA_IN_BUF_BEGIN,
- dsp_in_buffer);
-
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- s->adc_inst.data + CDATA_IN_BUF_END_PLUS_1,
- dsp_in_buffer + (dsp_in_size / 2));
-
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- s->adc_inst.data + CDATA_IN_BUF_HEAD,
- dsp_in_buffer);
-
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- s->adc_inst.data + CDATA_IN_BUF_TAIL,
- dsp_in_buffer);
-
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- s->adc_inst.data + CDATA_OUT_BUF_BEGIN,
- dsp_out_buffer);
-
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- s->adc_inst.data + CDATA_OUT_BUF_END_PLUS_1,
- dsp_out_buffer + (dsp_out_size / 2));
-
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- s->adc_inst.data + CDATA_OUT_BUF_HEAD,
- dsp_out_buffer);
-
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- s->adc_inst.data + CDATA_OUT_BUF_TAIL,
- dsp_out_buffer);
-
- /*
- * some per client initializers
- */
-
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- s->adc_inst.data + SRC3_DIRECTION_OFFSET + 12,
- s->adc_inst.data + 40 + 8);
-
- /* tell it which way dma is going? */
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- s->adc_inst.data + CDATA_DMA_CONTROL,
- DMACONTROL_DIRECTION + DMACONTROL_AUTOREPEAT +
- DMAC_PAGE3_SELECTOR + DMAC_BLOCKF_SELECTOR);
-
- /*
- * set an armload of static initializers
- */
- for(i = 0 ; i < (sizeof(rv) / sizeof(rv[0])) ; i++)
- m3_assp_write(s->card, MEMTYPE_INTERNAL_DATA,
- s->adc_inst.data + rv[i].addr, rv[i].val);
-
- /*
- * put us in the lists if we're not already there
- */
-
- if(db->in_lists == 0) {
-
- db->adc1_index = m3_add_list(s->card, &s->card->adc1_list,
- s->adc_inst.data >> DP_SHIFT_COUNT);
-
- db->dma_index = m3_add_list(s->card, &s->card->dma_list,
- s->adc_inst.data >> DP_SHIFT_COUNT);
-
- db->msrc_index = m3_add_list(s->card, &s->card->msrc_list,
- s->adc_inst.data >> DP_SHIFT_COUNT);
-
- db->in_lists = 1;
- }
-
- set_adc_rate(s,rate);
- start_adc(s);
-}
-/* --------------------------------------------------------------------- */
-
-static void set_dmaa(struct m3_state *s, unsigned int addr, unsigned int count)
-{
- DPRINTK(DPINT,"set_dmaa??\n");
-}
-
-static void set_dmac(struct m3_state *s, unsigned int addr, unsigned int count)
-{
- DPRINTK(DPINT,"set_dmac??\n");
-}
-
-static u32 get_dma_pos(struct m3_card *card,
- int instance_addr)
-{
- u16 hi = 0, lo = 0;
- int retry = 10;
-
- /*
- * try and get a valid answer
- */
- while(retry--) {
- hi = m3_assp_read(card, MEMTYPE_INTERNAL_DATA,
- instance_addr + CDATA_HOST_SRC_CURRENTH);
-
- lo = m3_assp_read(card, MEMTYPE_INTERNAL_DATA,
- instance_addr + CDATA_HOST_SRC_CURRENTL);
-
- if(hi == m3_assp_read(card, MEMTYPE_INTERNAL_DATA,
- instance_addr + CDATA_HOST_SRC_CURRENTH))
- break;
- }
- return lo | (hi<<16);
-}
-
-static u32 get_dmaa(struct m3_state *s)
-{
- u32 offset;
-
- offset = get_dma_pos(s->card, s->dac_inst.data) -
- virt_to_bus(s->dma_dac.rawbuf);
-
- DPRINTK(DPINT,"get_dmaa: 0x%08x\n",offset);
-
- return offset;
-}
-
-static u32 get_dmac(struct m3_state *s)
-{
- u32 offset;
-
- offset = get_dma_pos(s->card, s->adc_inst.data) -
- virt_to_bus(s->dma_adc.rawbuf);
-
- DPRINTK(DPINT,"get_dmac: 0x%08x\n",offset);
-
- return offset;
-
-}
-
-static int
-prog_dmabuf(struct m3_state *s, unsigned rec)
-{
- struct dmabuf *db = rec ? &s->dma_adc : &s->dma_dac;
- unsigned rate = rec ? s->rateadc : s->ratedac;
- unsigned bytepersec;
- unsigned bufs;
- unsigned char fmt;
- unsigned long flags;
-
- spin_lock_irqsave(&s->card->lock, flags);
-
- fmt = s->fmt;
- if (rec) {
- stop_adc(s);
- fmt >>= ESS_ADC_SHIFT;
- } else {
- stop_dac(s);
- fmt >>= ESS_DAC_SHIFT;
- }
- fmt &= ESS_FMT_MASK;
-
- db->hwptr = db->swptr = db->total_bytes = db->count = db->error = db->endcleared = 0;
-
- bytepersec = rate << sample_shift[fmt];
- bufs = PAGE_SIZE << db->buforder;
- if (db->ossfragshift) {
- if ((1000 << db->ossfragshift) < bytepersec)
- db->fragshift = ld2(bytepersec/1000);
- else
- db->fragshift = db->ossfragshift;
- } else {
- db->fragshift = ld2(bytepersec/100/(db->subdivision ? db->subdivision : 1));
- if (db->fragshift < 3)
- db->fragshift = 3;
- }
- db->numfrag = bufs >> db->fragshift;
- while (db->numfrag < 4 && db->fragshift > 3) {
- db->fragshift--;
- db->numfrag = bufs >> db->fragshift;
- }
- db->fragsize = 1 << db->fragshift;
- if (db->ossmaxfrags >= 4 && db->ossmaxfrags < db->numfrag)
- db->numfrag = db->ossmaxfrags;
- db->fragsamples = db->fragsize >> sample_shift[fmt];
- db->dmasize = db->numfrag << db->fragshift;
-
- DPRINTK(DPSTR,"prog_dmabuf: numfrag: %d fragsize: %d dmasize: %d\n",db->numfrag,db->fragsize,db->dmasize);
-
- memset(db->rawbuf, (fmt & ESS_FMT_16BIT) ? 0 : 0x80, db->dmasize);
-
- if (rec)
- m3_rec_setup(s, fmt, s->rateadc, db->rawbuf, db->dmasize);
- else
- m3_play_setup(s, fmt, s->ratedac, db->rawbuf, db->dmasize);
-
- db->ready = 1;
-
- spin_unlock_irqrestore(&s->card->lock, flags);
-
- return 0;
-}
-
-static void clear_advance(struct m3_state *s)
-{
- unsigned char c = ((s->fmt >> ESS_DAC_SHIFT) & ESS_FMT_16BIT) ? 0 : 0x80;
-
- unsigned char *buf = s->dma_dac.rawbuf;
- unsigned bsize = s->dma_dac.dmasize;
- unsigned bptr = s->dma_dac.swptr;
- unsigned len = s->dma_dac.fragsize;
-
- if (bptr + len > bsize) {
- unsigned x = bsize - bptr;
- memset(buf + bptr, c, x);
- /* account for wrapping? */
- bptr = 0;
- len -= x;
- }
- memset(buf + bptr, c, len);
-}
-
-/* call with spinlock held! */
-static void m3_update_ptr(struct m3_state *s)
-{
- unsigned hwptr;
- int diff;
-
- /* update ADC pointer */
- if (s->dma_adc.ready) {
- hwptr = get_dmac(s) % s->dma_adc.dmasize;
- diff = (s->dma_adc.dmasize + hwptr - s->dma_adc.hwptr) % s->dma_adc.dmasize;
- s->dma_adc.hwptr = hwptr;
- s->dma_adc.total_bytes += diff;
- s->dma_adc.count += diff;
- if (s->dma_adc.count >= (signed)s->dma_adc.fragsize)
- wake_up(&s->dma_adc.wait);
- if (!s->dma_adc.mapped) {
- if (s->dma_adc.count > (signed)(s->dma_adc.dmasize - ((3 * s->dma_adc.fragsize) >> 1))) {
- stop_adc(s);
- /* brute force everyone back in sync, sigh */
- s->dma_adc.count = 0;
- s->dma_adc.swptr = 0;
- s->dma_adc.hwptr = 0;
- s->dma_adc.error++;
- }
- }
- }
- /* update DAC pointer */
- if (s->dma_dac.ready) {
- hwptr = get_dmaa(s) % s->dma_dac.dmasize;
- diff = (s->dma_dac.dmasize + hwptr - s->dma_dac.hwptr) % s->dma_dac.dmasize;
-
- DPRINTK(DPINT,"updating dac: hwptr: %6d diff: %6d count: %6d\n",
- hwptr,diff,s->dma_dac.count);
-
- s->dma_dac.hwptr = hwptr;
- s->dma_dac.total_bytes += diff;
-
- if (s->dma_dac.mapped) {
-
- s->dma_dac.count += diff;
- if (s->dma_dac.count >= (signed)s->dma_dac.fragsize) {
- wake_up(&s->dma_dac.wait);
- }
- } else {
-
- s->dma_dac.count -= diff;
-
- if (s->dma_dac.count <= 0) {
- DPRINTK(DPCRAP,"underflow! diff: %d (0x%x) count: %d (0x%x) hw: %d (0x%x) sw: %d (0x%x)\n",
- diff, diff,
- s->dma_dac.count,
- s->dma_dac.count,
- hwptr, hwptr,
- s->dma_dac.swptr,
- s->dma_dac.swptr);
- stop_dac(s);
- /* brute force everyone back in sync, sigh */
- s->dma_dac.count = 0;
- s->dma_dac.swptr = hwptr;
- s->dma_dac.error++;
- } else if (s->dma_dac.count <= (signed)s->dma_dac.fragsize && !s->dma_dac.endcleared) {
- clear_advance(s);
- s->dma_dac.endcleared = 1;
- }
- if (s->dma_dac.count + (signed)s->dma_dac.fragsize <= (signed)s->dma_dac.dmasize) {
- wake_up(&s->dma_dac.wait);
- DPRINTK(DPINT,"waking up DAC count: %d sw: %d hw: %d\n",
- s->dma_dac.count, s->dma_dac.swptr, hwptr);
- }
- }
- }
-}
-
-static irqreturn_t m3_interrupt(int irq, void *dev_id, struct pt_regs *regs)
-{
- struct m3_card *c = (struct m3_card *)dev_id;
- struct m3_state *s = &c->channels[0];
- u8 status;
-
- status = inb(c->iobase+0x1A);
-
- if(status == 0xff)
- return IRQ_NONE;
-
- /* presumably acking the ints? */
- outw(status, c->iobase+0x1A);
-
- if(c->in_suspend)
- return IRQ_HANDLED;
-
- /*
- * ack an assp int if its running
- * and has an int pending
- */
- if( status & ASSP_INT_PENDING) {
- u8 ctl = inb(c->iobase + ASSP_CONTROL_B);
- if( !(ctl & STOP_ASSP_CLOCK)) {
- ctl = inb(c->iobase + ASSP_HOST_INT_STATUS );
- if(ctl & DSP2HOST_REQ_TIMER) {
- outb( DSP2HOST_REQ_TIMER, c->iobase + ASSP_HOST_INT_STATUS);
- /* update adc/dac info if it was a timer int */
- spin_lock(&c->lock);
- m3_update_ptr(s);
- spin_unlock(&c->lock);
- }
- }
- }
-
- /* XXX is this needed? */
- if(status & 0x40)
- outb(0x40, c->iobase+0x1A);
- return IRQ_HANDLED;
-}
-
-
-/* --------------------------------------------------------------------- */
-
-static const char invalid_magic[] = KERN_CRIT PFX "invalid magic value in %s\n";
-
-#define VALIDATE_MAGIC(FOO,MAG) \
-({ \
- if (!(FOO) || (FOO)->magic != MAG) { \
- printk(invalid_magic,__FUNCTION__); \
- return -ENXIO; \
- } \
-})
-
-#define VALIDATE_STATE(a) VALIDATE_MAGIC(a,M3_STATE_MAGIC)
-#define VALIDATE_CARD(a) VALIDATE_MAGIC(a,M3_CARD_MAGIC)
-
-/* --------------------------------------------------------------------- */
-
-static int drain_dac(struct m3_state *s, int nonblock)
-{
- DECLARE_WAITQUEUE(wait,current);
- unsigned long flags;
- int count;
- signed long tmo;
-
- if (s->dma_dac.mapped || !s->dma_dac.ready)
- return 0;
- set_current_state(TASK_INTERRUPTIBLE);
- add_wait_queue(&s->dma_dac.wait, &wait);
- for (;;) {
- spin_lock_irqsave(&s->card->lock, flags);
- count = s->dma_dac.count;
- spin_unlock_irqrestore(&s->card->lock, flags);
- if (count <= 0)
- break;
- if (signal_pending(current))
- break;
- if (nonblock) {
- remove_wait_queue(&s->dma_dac.wait, &wait);
- set_current_state(TASK_RUNNING);
- return -EBUSY;
- }
- tmo = (count * HZ) / s->ratedac;
- tmo >>= sample_shift[(s->fmt >> ESS_DAC_SHIFT) & ESS_FMT_MASK];
- /* XXX this is just broken. someone is waking us up alot, or schedule_timeout is broken.
- or something. who cares. - zach */
- if (!schedule_timeout(tmo ? tmo : 1) && tmo)
- DPRINTK(DPCRAP,"dma timed out?? %ld\n",jiffies);
- }
- remove_wait_queue(&s->dma_dac.wait, &wait);
- set_current_state(TASK_RUNNING);
- if (signal_pending(current))
- return -ERESTARTSYS;
- return 0;
-}
-
-static ssize_t m3_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos)
-{
- struct m3_state *s = (struct m3_state *)file->private_data;
- ssize_t ret;
- unsigned long flags;
- unsigned swptr;
- int cnt;
-
- VALIDATE_STATE(s);
- if (s->dma_adc.mapped)
- return -ENXIO;
- if (!s->dma_adc.ready && (ret = prog_dmabuf(s, 1)))
- return ret;
- if (!access_ok(VERIFY_WRITE, buffer, count))
- return -EFAULT;
- ret = 0;
-
- spin_lock_irqsave(&s->card->lock, flags);
-
- while (count > 0) {
- int timed_out;
-
- swptr = s->dma_adc.swptr;
- cnt = s->dma_adc.dmasize-swptr;
- if (s->dma_adc.count < cnt)
- cnt = s->dma_adc.count;
-
- if (cnt > count)
- cnt = count;
-
- if (cnt <= 0) {
- start_adc(s);
- if (file->f_flags & O_NONBLOCK)
- {
- ret = ret ? ret : -EAGAIN;
- goto out;
- }
-
- spin_unlock_irqrestore(&s->card->lock, flags);
- timed_out = interruptible_sleep_on_timeout(&s->dma_adc.wait, HZ) == 0;
- spin_lock_irqsave(&s->card->lock, flags);
-
- if(timed_out) {
- printk("read: chip lockup? dmasz %u fragsz %u count %u hwptr %u swptr %u\n",
- s->dma_adc.dmasize, s->dma_adc.fragsize, s->dma_adc.count,
- s->dma_adc.hwptr, s->dma_adc.swptr);
- stop_adc(s);
- set_dmac(s, virt_to_bus(s->dma_adc.rawbuf), s->dma_adc.numfrag << s->dma_adc.fragshift);
- s->dma_adc.count = s->dma_adc.hwptr = s->dma_adc.swptr = 0;
- }
- if (signal_pending(current))
- {
- ret = ret ? ret : -ERESTARTSYS;
- goto out;
- }
- continue;
- }
-
- spin_unlock_irqrestore(&s->card->lock, flags);
- if (copy_to_user(buffer, s->dma_adc.rawbuf + swptr, cnt)) {
- ret = ret ? ret : -EFAULT;
- return ret;
- }
- spin_lock_irqsave(&s->card->lock, flags);
-
- swptr = (swptr + cnt) % s->dma_adc.dmasize;
- s->dma_adc.swptr = swptr;
- s->dma_adc.count -= cnt;
- count -= cnt;
- buffer += cnt;
- ret += cnt;
- start_adc(s);
- }
-
-out:
- spin_unlock_irqrestore(&s->card->lock, flags);
- return ret;
-}
-
-static ssize_t m3_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)
-{
- struct m3_state *s = (struct m3_state *)file->private_data;
- ssize_t ret;
- unsigned long flags;
- unsigned swptr;
- int cnt;
-
- VALIDATE_STATE(s);
- if (s->dma_dac.mapped)
- return -ENXIO;
- if (!s->dma_dac.ready && (ret = prog_dmabuf(s, 0)))
- return ret;
- if (!access_ok(VERIFY_READ, buffer, count))
- return -EFAULT;
- ret = 0;
-
- spin_lock_irqsave(&s->card->lock, flags);
-
- while (count > 0) {
- int timed_out;
-
- if (s->dma_dac.count < 0) {
- s->dma_dac.count = 0;
- s->dma_dac.swptr = s->dma_dac.hwptr;
- }
- swptr = s->dma_dac.swptr;
-
- cnt = s->dma_dac.dmasize-swptr;
-
- if (s->dma_dac.count + cnt > s->dma_dac.dmasize)
- cnt = s->dma_dac.dmasize - s->dma_dac.count;
-
-
- if (cnt > count)
- cnt = count;
-
- if (cnt <= 0) {
- start_dac(s);
- if (file->f_flags & O_NONBLOCK) {
- if(!ret) ret = -EAGAIN;
- goto out;
- }
- spin_unlock_irqrestore(&s->card->lock, flags);
- timed_out = interruptible_sleep_on_timeout(&s->dma_dac.wait, HZ) == 0;
- spin_lock_irqsave(&s->card->lock, flags);
- if(timed_out) {
- DPRINTK(DPCRAP,"write: chip lockup? dmasz %u fragsz %u count %u hwptr %u swptr %u\n",
- s->dma_dac.dmasize, s->dma_dac.fragsize, s->dma_dac.count,
- s->dma_dac.hwptr, s->dma_dac.swptr);
- stop_dac(s);
- set_dmaa(s, virt_to_bus(s->dma_dac.rawbuf), s->dma_dac.numfrag << s->dma_dac.fragshift);
- s->dma_dac.count = s->dma_dac.hwptr = s->dma_dac.swptr = 0;
- }
- if (signal_pending(current)) {
- if (!ret) ret = -ERESTARTSYS;
- goto out;
- }
- continue;
- }
- spin_unlock_irqrestore(&s->card->lock, flags);
- if (copy_from_user(s->dma_dac.rawbuf + swptr, buffer, cnt)) {
- if (!ret) ret = -EFAULT;
- return ret;
- }
- spin_lock_irqsave(&s->card->lock, flags);
-
- DPRINTK(DPSYS,"wrote %6d bytes at sw: %6d cnt: %6d while hw: %6d\n",
- cnt, swptr, s->dma_dac.count, s->dma_dac.hwptr);
-
- swptr = (swptr + cnt) % s->dma_dac.dmasize;
-
- s->dma_dac.swptr = swptr;
- s->dma_dac.count += cnt;
- s->dma_dac.endcleared = 0;
- count -= cnt;
- buffer += cnt;
- ret += cnt;
- start_dac(s);
- }
-out:
- spin_unlock_irqrestore(&s->card->lock, flags);
- return ret;
-}
-
-static unsigned int m3_poll(struct file *file, struct poll_table_struct *wait)
-{
- struct m3_state *s = (struct m3_state *)file->private_data;
- unsigned long flags;
- unsigned int mask = 0;
-
- VALIDATE_STATE(s);
- if (file->f_mode & FMODE_WRITE)
- poll_wait(file, &s->dma_dac.wait, wait);
- if (file->f_mode & FMODE_READ)
- poll_wait(file, &s->dma_adc.wait, wait);
-
- spin_lock_irqsave(&s->card->lock, flags);
- m3_update_ptr(s);
-
- if (file->f_mode & FMODE_READ) {
- if (s->dma_adc.count >= (signed)s->dma_adc.fragsize)
- mask |= POLLIN | POLLRDNORM;
- }
- if (file->f_mode & FMODE_WRITE) {
- if (s->dma_dac.mapped) {
- if (s->dma_dac.count >= (signed)s->dma_dac.fragsize)
- mask |= POLLOUT | POLLWRNORM;
- } else {
- if ((signed)s->dma_dac.dmasize >= s->dma_dac.count + (signed)s->dma_dac.fragsize)
- mask |= POLLOUT | POLLWRNORM;
- }
- }
-
- spin_unlock_irqrestore(&s->card->lock, flags);
- return mask;
-}
-
-static int m3_mmap(struct file *file, struct vm_area_struct *vma)
-{
- struct m3_state *s = (struct m3_state *)file->private_data;
- unsigned long max_size, size, start, offset;
- struct dmabuf *db;
- int ret = -EINVAL;
-
- VALIDATE_STATE(s);
- if (vma->vm_flags & VM_WRITE) {
- if ((ret = prog_dmabuf(s, 0)) != 0)
- return ret;
- db = &s->dma_dac;
- } else
- if (vma->vm_flags & VM_READ) {
- if ((ret = prog_dmabuf(s, 1)) != 0)
- return ret;
- db = &s->dma_adc;
- } else
- return -EINVAL;
-
- max_size = db->dmasize;
-
- start = vma->vm_start;
- offset = (vma->vm_pgoff << PAGE_SHIFT);
- size = vma->vm_end - vma->vm_start;
-
- if(size > max_size)
- goto out;
- if(offset > max_size - size)
- goto out;
-
- /*
- * this will be ->nopage() once I can
- * ask Jeff what the hell I'm doing wrong.
- */
- ret = -EAGAIN;
- if (remap_pfn_range(vma, vma->vm_start,
- virt_to_phys(db->rawbuf) >> PAGE_SHIFT,
- size, vma->vm_page_prot))
- goto out;
-
- db->mapped = 1;
- ret = 0;
-
-out:
- return ret;
-}
-
-/*
- * this function is a disaster..
- */
-#define get_user_ret(x, ptr, ret) ({ if(get_user(x, ptr)) return ret; })
-static int m3_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
-{
- struct m3_state *s = (struct m3_state *)file->private_data;
- struct m3_card *card=s->card;
- unsigned long flags;
- audio_buf_info abinfo;
- count_info cinfo;
- int val, mapped, ret;
- unsigned char fmtm, fmtd;
- void __user *argp = (void __user *)arg;
- int __user *p = argp;
-
- VALIDATE_STATE(s);
-
- mapped = ((file->f_mode & FMODE_WRITE) && s->dma_dac.mapped) ||
- ((file->f_mode & FMODE_READ) && s->dma_adc.mapped);
-
- DPRINTK(DPSYS,"m3_ioctl: cmd %d\n", cmd);
-
- switch (cmd) {
- case OSS_GETVERSION:
- return put_user(SOUND_VERSION, p);
-
- case SNDCTL_DSP_SYNC:
- if (file->f_mode & FMODE_WRITE)
- return drain_dac(s, file->f_flags & O_NONBLOCK);
- return 0;
-
- case SNDCTL_DSP_SETDUPLEX:
- /* XXX fix */
- return 0;
-
- case SNDCTL_DSP_GETCAPS:
- return put_user(DSP_CAP_DUPLEX | DSP_CAP_REALTIME | DSP_CAP_TRIGGER | DSP_CAP_MMAP, p);
-
- case SNDCTL_DSP_RESET:
- spin_lock_irqsave(&card->lock, flags);
- if (file->f_mode & FMODE_WRITE) {
- stop_dac(s);
- synchronize_irq(s->card->pcidev->irq);
- s->dma_dac.swptr = s->dma_dac.hwptr = s->dma_dac.count = s->dma_dac.total_bytes = 0;
- }
- if (file->f_mode & FMODE_READ) {
- stop_adc(s);
- synchronize_irq(s->card->pcidev->irq);
- s->dma_adc.swptr = s->dma_adc.hwptr = s->dma_adc.count = s->dma_adc.total_bytes = 0;
- }
- spin_unlock_irqrestore(&card->lock, flags);
- return 0;
-
- case SNDCTL_DSP_SPEED:
- get_user_ret(val, p, -EFAULT);
- spin_lock_irqsave(&card->lock, flags);
- if (val >= 0) {
- if (file->f_mode & FMODE_READ) {
- stop_adc(s);
- s->dma_adc.ready = 0;
- set_adc_rate(s, val);
- }
- if (file->f_mode & FMODE_WRITE) {
- stop_dac(s);
- s->dma_dac.ready = 0;
- set_dac_rate(s, val);
- }
- }
- spin_unlock_irqrestore(&card->lock, flags);
- return put_user((file->f_mode & FMODE_READ) ? s->rateadc : s->ratedac, p);
-
- case SNDCTL_DSP_STEREO:
- get_user_ret(val, p, -EFAULT);
- spin_lock_irqsave(&card->lock, flags);
- fmtd = 0;
- fmtm = ~0;
- if (file->f_mode & FMODE_READ) {
- stop_adc(s);
- s->dma_adc.ready = 0;
- if (val)
- fmtd |= ESS_FMT_STEREO << ESS_ADC_SHIFT;
- else
- fmtm &= ~(ESS_FMT_STEREO << ESS_ADC_SHIFT);
- }
- if (file->f_mode & FMODE_WRITE) {
- stop_dac(s);
- s->dma_dac.ready = 0;
- if (val)
- fmtd |= ESS_FMT_STEREO << ESS_DAC_SHIFT;
- else
- fmtm &= ~(ESS_FMT_STEREO << ESS_DAC_SHIFT);
- }
- set_fmt(s, fmtm, fmtd);
- spin_unlock_irqrestore(&card->lock, flags);
- return 0;
-
- case SNDCTL_DSP_CHANNELS:
- get_user_ret(val, p, -EFAULT);
- spin_lock_irqsave(&card->lock, flags);
- if (val != 0) {
- fmtd = 0;
- fmtm = ~0;
- if (file->f_mode & FMODE_READ) {
- stop_adc(s);
- s->dma_adc.ready = 0;
- if (val >= 2)
- fmtd |= ESS_FMT_STEREO << ESS_ADC_SHIFT;
- else
- fmtm &= ~(ESS_FMT_STEREO << ESS_ADC_SHIFT);
- }
- if (file->f_mode & FMODE_WRITE) {
- stop_dac(s);
- s->dma_dac.ready = 0;
- if (val >= 2)
- fmtd |= ESS_FMT_STEREO << ESS_DAC_SHIFT;
- else
- fmtm &= ~(ESS_FMT_STEREO << ESS_DAC_SHIFT);
- }
- set_fmt(s, fmtm, fmtd);
- }
- spin_unlock_irqrestore(&card->lock, flags);
- return put_user((s->fmt & ((file->f_mode & FMODE_READ) ? (ESS_FMT_STEREO << ESS_ADC_SHIFT)
- : (ESS_FMT_STEREO << ESS_DAC_SHIFT))) ? 2 : 1, p);
-
- case SNDCTL_DSP_GETFMTS: /* Returns a mask */
- return put_user(AFMT_U8|AFMT_S16_LE, p);
-
- case SNDCTL_DSP_SETFMT: /* Selects ONE fmt*/
- get_user_ret(val, p, -EFAULT);
- spin_lock_irqsave(&card->lock, flags);
- if (val != AFMT_QUERY) {
- fmtd = 0;
- fmtm = ~0;
- if (file->f_mode & FMODE_READ) {
- stop_adc(s);
- s->dma_adc.ready = 0;
- if (val == AFMT_S16_LE)
- fmtd |= ESS_FMT_16BIT << ESS_ADC_SHIFT;
- else
- fmtm &= ~(ESS_FMT_16BIT << ESS_ADC_SHIFT);
- }
- if (file->f_mode & FMODE_WRITE) {
- stop_dac(s);
- s->dma_dac.ready = 0;
- if (val == AFMT_S16_LE)
- fmtd |= ESS_FMT_16BIT << ESS_DAC_SHIFT;
- else
- fmtm &= ~(ESS_FMT_16BIT << ESS_DAC_SHIFT);
- }
- set_fmt(s, fmtm, fmtd);
- }
- spin_unlock_irqrestore(&card->lock, flags);
- return put_user((s->fmt & ((file->f_mode & FMODE_READ) ?
- (ESS_FMT_16BIT << ESS_ADC_SHIFT)
- : (ESS_FMT_16BIT << ESS_DAC_SHIFT))) ?
- AFMT_S16_LE :
- AFMT_U8,
- p);
-
- case SNDCTL_DSP_POST:
- return 0;
-
- case SNDCTL_DSP_GETTRIGGER:
- val = 0;
- if ((file->f_mode & FMODE_READ) && (s->enable & ADC_RUNNING))
- val |= PCM_ENABLE_INPUT;
- if ((file->f_mode & FMODE_WRITE) && (s->enable & DAC_RUNNING))
- val |= PCM_ENABLE_OUTPUT;
- return put_user(val, p);
-
- case SNDCTL_DSP_SETTRIGGER:
- get_user_ret(val, p, -EFAULT);
- if (file->f_mode & FMODE_READ) {
- if (val & PCM_ENABLE_INPUT) {
- if (!s->dma_adc.ready && (ret = prog_dmabuf(s, 1)))
- return ret;
- start_adc(s);
- } else
- stop_adc(s);
- }
- if (file->f_mode & FMODE_WRITE) {
- if (val & PCM_ENABLE_OUTPUT) {
- if (!s->dma_dac.ready && (ret = prog_dmabuf(s, 0)))
- return ret;
- start_dac(s);
- } else
- stop_dac(s);
- }
- return 0;
-
- case SNDCTL_DSP_GETOSPACE:
- if (!(file->f_mode & FMODE_WRITE))
- return -EINVAL;
- if (!(s->enable & DAC_RUNNING) && (val = prog_dmabuf(s, 0)) != 0)
- return val;
- spin_lock_irqsave(&card->lock, flags);
- m3_update_ptr(s);
- abinfo.fragsize = s->dma_dac.fragsize;
- abinfo.bytes = s->dma_dac.dmasize - s->dma_dac.count;
- abinfo.fragstotal = s->dma_dac.numfrag;
- abinfo.fragments = abinfo.bytes >> s->dma_dac.fragshift;
- spin_unlock_irqrestore(&card->lock, flags);
- return copy_to_user(argp, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
-
- case SNDCTL_DSP_GETISPACE:
- if (!(file->f_mode & FMODE_READ))
- return -EINVAL;
- if (!(s->enable & ADC_RUNNING) && (val = prog_dmabuf(s, 1)) != 0)
- return val;
- spin_lock_irqsave(&card->lock, flags);
- m3_update_ptr(s);
- abinfo.fragsize = s->dma_adc.fragsize;
- abinfo.bytes = s->dma_adc.count;
- abinfo.fragstotal = s->dma_adc.numfrag;
- abinfo.fragments = abinfo.bytes >> s->dma_adc.fragshift;
- spin_unlock_irqrestore(&card->lock, flags);
- return copy_to_user(argp, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
-
- case SNDCTL_DSP_NONBLOCK:
- file->f_flags |= O_NONBLOCK;
- return 0;
-
- case SNDCTL_DSP_GETODELAY:
- if (!(file->f_mode & FMODE_WRITE))
- return -EINVAL;
- spin_lock_irqsave(&card->lock, flags);
- m3_update_ptr(s);
- val = s->dma_dac.count;
- spin_unlock_irqrestore(&card->lock, flags);
- return put_user(val, p);
-
- case SNDCTL_DSP_GETIPTR:
- if (!(file->f_mode & FMODE_READ))
- return -EINVAL;
- spin_lock_irqsave(&card->lock, flags);
- m3_update_ptr(s);
- cinfo.bytes = s->dma_adc.total_bytes;
- cinfo.blocks = s->dma_adc.count >> s->dma_adc.fragshift;
- cinfo.ptr = s->dma_adc.hwptr;
- if (s->dma_adc.mapped)
- s->dma_adc.count &= s->dma_adc.fragsize-1;
- spin_unlock_irqrestore(&card->lock, flags);
- if (copy_to_user(argp, &cinfo, sizeof(cinfo)))
- return -EFAULT;
- return 0;
-
- case SNDCTL_DSP_GETOPTR:
- if (!(file->f_mode & FMODE_WRITE))
- return -EINVAL;
- spin_lock_irqsave(&card->lock, flags);
- m3_update_ptr(s);
- cinfo.bytes = s->dma_dac.total_bytes;
- cinfo.blocks = s->dma_dac.count >> s->dma_dac.fragshift;
- cinfo.ptr = s->dma_dac.hwptr;
- if (s->dma_dac.mapped)
- s->dma_dac.count &= s->dma_dac.fragsize-1;
- spin_unlock_irqrestore(&card->lock, flags);
- if (copy_to_user(argp, &cinfo, sizeof(cinfo)))
- return -EFAULT;
- return 0;
-
- case SNDCTL_DSP_GETBLKSIZE:
- if (file->f_mode & FMODE_WRITE) {
- if ((val = prog_dmabuf(s, 0)))
- return val;
- return put_user(s->dma_dac.fragsize, p);
- }
- if ((val = prog_dmabuf(s, 1)))
- return val;
- return put_user(s->dma_adc.fragsize, p);
-
- case SNDCTL_DSP_SETFRAGMENT:
- get_user_ret(val, p, -EFAULT);
- spin_lock_irqsave(&card->lock, flags);
- if (file->f_mode & FMODE_READ) {
- s->dma_adc.ossfragshift = val & 0xffff;
- s->dma_adc.ossmaxfrags = (val >> 16) & 0xffff;
- if (s->dma_adc.ossfragshift < 4)
- s->dma_adc.ossfragshift = 4;
- if (s->dma_adc.ossfragshift > 15)
- s->dma_adc.ossfragshift = 15;
- if (s->dma_adc.ossmaxfrags < 4)
- s->dma_adc.ossmaxfrags = 4;
- }
- if (file->f_mode & FMODE_WRITE) {
- s->dma_dac.ossfragshift = val & 0xffff;
- s->dma_dac.ossmaxfrags = (val >> 16) & 0xffff;
- if (s->dma_dac.ossfragshift < 4)
- s->dma_dac.ossfragshift = 4;
- if (s->dma_dac.ossfragshift > 15)
- s->dma_dac.ossfragshift = 15;
- if (s->dma_dac.ossmaxfrags < 4)
- s->dma_dac.ossmaxfrags = 4;
- }
- spin_unlock_irqrestore(&card->lock, flags);
- return 0;
-
- case SNDCTL_DSP_SUBDIVIDE:
- if ((file->f_mode & FMODE_READ && s->dma_adc.subdivision) ||
- (file->f_mode & FMODE_WRITE && s->dma_dac.subdivision))
- return -EINVAL;
- get_user_ret(val, p, -EFAULT);
- if (val != 1 && val != 2 && val != 4)
- return -EINVAL;
- if (file->f_mode & FMODE_READ)
- s->dma_adc.subdivision = val;
- if (file->f_mode & FMODE_WRITE)
- s->dma_dac.subdivision = val;
- return 0;
-
- case SOUND_PCM_READ_RATE:
- return put_user((file->f_mode & FMODE_READ) ? s->rateadc : s->ratedac, p);
-
- case SOUND_PCM_READ_CHANNELS:
- return put_user((s->fmt & ((file->f_mode & FMODE_READ) ? (ESS_FMT_STEREO << ESS_ADC_SHIFT)
- : (ESS_FMT_STEREO << ESS_DAC_SHIFT))) ? 2 : 1, p);
-
- case SOUND_PCM_READ_BITS:
- return put_user((s->fmt & ((file->f_mode & FMODE_READ) ? (ESS_FMT_16BIT << ESS_ADC_SHIFT)
- : (ESS_FMT_16BIT << ESS_DAC_SHIFT))) ? 16 : 8, p);
-
- case SOUND_PCM_WRITE_FILTER:
- case SNDCTL_DSP_SETSYNCRO:
- case SOUND_PCM_READ_FILTER:
- return -EINVAL;
-
- }
- return -EINVAL;
-}
-
-static int
-allocate_dmabuf(struct pci_dev *pci_dev, struct dmabuf *db)
-{
- int order;
-
- DPRINTK(DPSTR,"allocating for dmabuf %p\n", db);
-
- /*
- * alloc as big a chunk as we can, start with
- * 64k 'cause we're insane. based on order cause
- * the amazingly complicated prog_dmabuf wants it.
- *
- * pci_alloc_sonsistent guarantees that it won't cross a natural
- * boundary; the m3 hardware can't have dma cross a 64k bus
- * address boundary.
- */
- for (order = 16-PAGE_SHIFT; order >= 1; order--) {
- db->rawbuf = pci_alloc_consistent(pci_dev, PAGE_SIZE << order,
- &(db->handle));
- if(db->rawbuf)
- break;
- }
-
- if (!db->rawbuf)
- return 1;
-
- DPRINTK(DPSTR,"allocated %ld (%d) bytes at %p\n",
- PAGE_SIZE<<order, order, db->rawbuf);
-
- {
- struct page *page, *pend;
-
- pend = virt_to_page(db->rawbuf + (PAGE_SIZE << order) - 1);
- for (page = virt_to_page(db->rawbuf); page <= pend; page++)
- SetPageReserved(page);
- }
-
-
- db->buforder = order;
- db->ready = 0;
- db->mapped = 0;
-
- return 0;
-}
-
-static void
-nuke_lists(struct m3_card *card, struct dmabuf *db)
-{
- m3_remove_list(card, &(card->dma_list), db->dma_index);
- m3_remove_list(card, &(card->msrc_list), db->msrc_index);
- db->in_lists = 0;
-}
-
-static void
-free_dmabuf(struct pci_dev *pci_dev, struct dmabuf *db)
-{
- if(db->rawbuf == NULL)
- return;
-
- DPRINTK(DPSTR,"freeing %p from dmabuf %p\n",db->rawbuf, db);
-
- {
- struct page *page, *pend;
- pend = virt_to_page(db->rawbuf + (PAGE_SIZE << db->buforder) - 1);
- for (page = virt_to_page(db->rawbuf); page <= pend; page++)
- ClearPageReserved(page);
- }
-
-
- pci_free_consistent(pci_dev, PAGE_SIZE << db->buforder,
- db->rawbuf, db->handle);
-
- db->rawbuf = NULL;
- db->buforder = 0;
- db->mapped = 0;
- db->ready = 0;
-}
-
-static int m3_open(struct inode *inode, struct file *file)
-{
- unsigned int minor = iminor(inode);
- struct m3_card *c;
- struct m3_state *s = NULL;
- int i;
- unsigned char fmtm = ~0, fmts = 0;
- unsigned long flags;
-
- /*
- * Scan the cards and find the channel. We only
- * do this at open time so it is ok
- */
- for(c = devs ; c != NULL ; c = c->next) {
-
- for(i=0;i<NR_DSPS;i++) {
-
- if(c->channels[i].dev_audio < 0)
- continue;
- if((c->channels[i].dev_audio ^ minor) & ~0xf)
- continue;
-
- s = &c->channels[i];
- break;
- }
- }
-
- if (!s)
- return -ENODEV;
-
- VALIDATE_STATE(s);
-
- file->private_data = s;
-
- /* wait for device to become free */
- mutex_lock(&s->open_mutex);
- while (s->open_mode & file->f_mode) {
- if (file->f_flags & O_NONBLOCK) {
- mutex_unlock(&s->open_mutex);
- return -EWOULDBLOCK;
- }
- mutex_unlock(&s->open_mutex);
- interruptible_sleep_on(&s->open_wait);
- if (signal_pending(current))
- return -ERESTARTSYS;
- mutex_lock(&s->open_mutex);
- }
-
- spin_lock_irqsave(&c->lock, flags);
-
- if (file->f_mode & FMODE_READ) {
- fmtm &= ~((ESS_FMT_STEREO | ESS_FMT_16BIT) << ESS_ADC_SHIFT);
- if ((minor & 0xf) == SND_DEV_DSP16)
- fmts |= ESS_FMT_16BIT << ESS_ADC_SHIFT;
-
- s->dma_adc.ossfragshift = s->dma_adc.ossmaxfrags = s->dma_adc.subdivision = 0;
- set_adc_rate(s, 8000);
- }
- if (file->f_mode & FMODE_WRITE) {
- fmtm &= ~((ESS_FMT_STEREO | ESS_FMT_16BIT) << ESS_DAC_SHIFT);
- if ((minor & 0xf) == SND_DEV_DSP16)
- fmts |= ESS_FMT_16BIT << ESS_DAC_SHIFT;
-
- s->dma_dac.ossfragshift = s->dma_dac.ossmaxfrags = s->dma_dac.subdivision = 0;
- set_dac_rate(s, 8000);
- }
- set_fmt(s, fmtm, fmts);
- s->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE);
-
- mutex_unlock(&s->open_mutex);
- spin_unlock_irqrestore(&c->lock, flags);
- return nonseekable_open(inode, file);
-}
-
-static int m3_release(struct inode *inode, struct file *file)
-{
- struct m3_state *s = (struct m3_state *)file->private_data;
- struct m3_card *card=s->card;
- unsigned long flags;
-
- VALIDATE_STATE(s);
- if (file->f_mode & FMODE_WRITE)
- drain_dac(s, file->f_flags & O_NONBLOCK);
-
- mutex_lock(&s->open_mutex);
- spin_lock_irqsave(&card->lock, flags);
-
- if (file->f_mode & FMODE_WRITE) {
- stop_dac(s);
- if(s->dma_dac.in_lists) {
- m3_remove_list(s->card, &(s->card->mixer_list), s->dma_dac.mixer_index);
- nuke_lists(s->card, &(s->dma_dac));
- }
- }
- if (file->f_mode & FMODE_READ) {
- stop_adc(s);
- if(s->dma_adc.in_lists) {
- m3_remove_list(s->card, &(s->card->adc1_list), s->dma_adc.adc1_index);
- nuke_lists(s->card, &(s->dma_adc));
- }
- }
-
- s->open_mode &= (~file->f_mode) & (FMODE_READ|FMODE_WRITE);
-
- spin_unlock_irqrestore(&card->lock, flags);
- mutex_unlock(&s->open_mutex);
- wake_up(&s->open_wait);
-
- return 0;
-}
-
-/*
- * Wait for the ac97 serial bus to be free.
- * return nonzero if the bus is still busy.
- */
-static int m3_ac97_wait(struct m3_card *card)
-{
- int i = 10000;
-
- while( (m3_inb(card, 0x30) & 1) && i--) ;
-
- return i == 0;
-}
-
-static u16 m3_ac97_read(struct ac97_codec *codec, u8 reg)
-{
- u16 ret = 0;
- struct m3_card *card = codec->private_data;
-
- spin_lock(&card->ac97_lock);
-
- if(m3_ac97_wait(card)) {
- printk(KERN_ERR PFX "serial bus busy reading reg 0x%x\n",reg);
- goto out;
- }
-
- m3_outb(card, 0x80 | (reg & 0x7f), 0x30);
-
- if(m3_ac97_wait(card)) {
- printk(KERN_ERR PFX "serial bus busy finishing read reg 0x%x\n",reg);
- goto out;
- }
-
- ret = m3_inw(card, 0x32);
- DPRINTK(DPCRAP,"reading 0x%04x from 0x%02x\n",ret, reg);
-
-out:
- spin_unlock(&card->ac97_lock);
- return ret;
-}
-
-static void m3_ac97_write(struct ac97_codec *codec, u8 reg, u16 val)
-{
- struct m3_card *card = codec->private_data;
-
- spin_lock(&card->ac97_lock);
-
- if(m3_ac97_wait(card)) {
- printk(KERN_ERR PFX "serial bus busy writing 0x%x to 0x%x\n",val, reg);
- goto out;
- }
- DPRINTK(DPCRAP,"writing 0x%04x to 0x%02x\n", val, reg);
-
- m3_outw(card, val, 0x32);
- m3_outb(card, reg & 0x7f, 0x30);
-out:
- spin_unlock(&card->ac97_lock);
-}
-/* OSS /dev/mixer file operation methods */
-static int m3_open_mixdev(struct inode *inode, struct file *file)
-{
- unsigned int minor = iminor(inode);
- struct m3_card *card = devs;
-
- for (card = devs; card != NULL; card = card->next) {
- if((card->ac97 != NULL) && (card->ac97->dev_mixer == minor))
- break;
- }
-
- if (!card) {
- return -ENODEV;
- }
-
- file->private_data = card->ac97;
-
- return nonseekable_open(inode, file);
-}
-
-static int m3_release_mixdev(struct inode *inode, struct file *file)
-{
- return 0;
-}
-
-static int m3_ioctl_mixdev(struct inode *inode, struct file *file, unsigned int cmd,
- unsigned long arg)
-{
- struct ac97_codec *codec = (struct ac97_codec *)file->private_data;
-
- return codec->mixer_ioctl(codec, cmd, arg);
-}
-
-static struct file_operations m3_mixer_fops = {
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .ioctl = m3_ioctl_mixdev,
- .open = m3_open_mixdev,
- .release = m3_release_mixdev,
-};
-
-static void remote_codec_config(int io, int isremote)
-{
- isremote = isremote ? 1 : 0;
-
- outw( (inw(io + RING_BUS_CTRL_B) & ~SECOND_CODEC_ID_MASK) | isremote,
- io + RING_BUS_CTRL_B);
- outw( (inw(io + SDO_OUT_DEST_CTRL) & ~COMMAND_ADDR_OUT) | isremote,
- io + SDO_OUT_DEST_CTRL);
- outw( (inw(io + SDO_IN_DEST_CTRL) & ~STATUS_ADDR_IN) | isremote,
- io + SDO_IN_DEST_CTRL);
-}
-
-/*
- * hack, returns non zero on err
- */
-static int try_read_vendor(struct m3_card *card)
-{
- u16 ret;
-
- if(m3_ac97_wait(card))
- return 1;
-
- m3_outb(card, 0x80 | (AC97_VENDOR_ID1 & 0x7f), 0x30);
-
- if(m3_ac97_wait(card))
- return 1;
-
- ret = m3_inw(card, 0x32);
-
- return (ret == 0) || (ret == 0xffff);
-}
-
-static void m3_codec_reset(struct m3_card *card, int busywait)
-{
- u16 dir;
- int delay1 = 0, delay2 = 0, i;
- int io = card->iobase;
-
- switch (card->card_type) {
- /*
- * the onboard codec on the allegro seems
- * to want to wait a very long time before
- * coming back to life
- */
- case ESS_ALLEGRO:
- delay1 = 50;
- delay2 = 800;
- break;
- case ESS_MAESTRO3:
- case ESS_MAESTRO3HW:
- delay1 = 20;
- delay2 = 500;
- break;
- }
-
- for(i = 0; i < 5; i ++) {
- dir = inw(io + GPIO_DIRECTION);
- dir |= 0x10; /* assuming pci bus master? */
-
- remote_codec_config(io, 0);
-
- outw(IO_SRAM_ENABLE, io + RING_BUS_CTRL_A);
- udelay(20);
-
- outw(dir & ~GPO_PRIMARY_AC97 , io + GPIO_DIRECTION);
- outw(~GPO_PRIMARY_AC97 , io + GPIO_MASK);
- outw(0, io + GPIO_DATA);
- outw(dir | GPO_PRIMARY_AC97, io + GPIO_DIRECTION);
-
- if(busywait) {
- mdelay(delay1);
- } else {
- set_current_state(TASK_UNINTERRUPTIBLE);
- schedule_timeout((delay1 * HZ) / 1000);
- }
-
- outw(GPO_PRIMARY_AC97, io + GPIO_DATA);
- udelay(5);
- /* ok, bring back the ac-link */
- outw(IO_SRAM_ENABLE | SERIAL_AC_LINK_ENABLE, io + RING_BUS_CTRL_A);
- outw(~0, io + GPIO_MASK);
-
- if(busywait) {
- mdelay(delay2);
- } else {
- set_current_state(TASK_UNINTERRUPTIBLE);
- schedule_timeout((delay2 * HZ) / 1000);
- }
- if(! try_read_vendor(card))
- break;
-
- delay1 += 10;
- delay2 += 100;
-
- DPRINTK(DPMOD, "retrying codec reset with delays of %d and %d ms\n",
- delay1, delay2);
- }
-
-#if 0
- /* more gung-ho reset that doesn't
- * seem to work anywhere :)
- */
- tmp = inw(io + RING_BUS_CTRL_A);
- outw(RAC_SDFS_ENABLE|LAC_SDFS_ENABLE, io + RING_BUS_CTRL_A);
- mdelay(20);
- outw(tmp, io + RING_BUS_CTRL_A);
- mdelay(50);
-#endif
-}
-
-static int __devinit m3_codec_install(struct m3_card *card)
-{
- struct ac97_codec *codec;
-
- if ((codec = ac97_alloc_codec()) == NULL)
- return -ENOMEM;
-
- codec->private_data = card;
- codec->codec_read = m3_ac97_read;
- codec->codec_write = m3_ac97_write;
- /* someday we should support secondary codecs.. */
- codec->id = 0;
-
- if (ac97_probe_codec(codec) == 0) {
- printk(KERN_ERR PFX "codec probe failed\n");
- ac97_release_codec(codec);
- return -1;
- }
-
- if ((codec->dev_mixer = register_sound_mixer(&m3_mixer_fops, -1)) < 0) {
- printk(KERN_ERR PFX "couldn't register mixer!\n");
- ac97_release_codec(codec);
- return -1;
- }
-
- card->ac97 = codec;
-
- return 0;
-}
-
-
-#define MINISRC_LPF_LEN 10
-static u16 minisrc_lpf[MINISRC_LPF_LEN] = {
- 0X0743, 0X1104, 0X0A4C, 0XF88D, 0X242C,
- 0X1023, 0X1AA9, 0X0B60, 0XEFDD, 0X186F
-};
-static void m3_assp_init(struct m3_card *card)
-{
- int i;
-
- /* zero kernel data */
- for(i = 0 ; i < (REV_B_DATA_MEMORY_UNIT_LENGTH * NUM_UNITS_KERNEL_DATA) / 2; i++)
- m3_assp_write(card, MEMTYPE_INTERNAL_DATA,
- KDATA_BASE_ADDR + i, 0);
-
- /* zero mixer data? */
- for(i = 0 ; i < (REV_B_DATA_MEMORY_UNIT_LENGTH * NUM_UNITS_KERNEL_DATA) / 2; i++)
- m3_assp_write(card, MEMTYPE_INTERNAL_DATA,
- KDATA_BASE_ADDR2 + i, 0);
-
- /* init dma pointer */
- m3_assp_write(card, MEMTYPE_INTERNAL_DATA,
- KDATA_CURRENT_DMA,
- KDATA_DMA_XFER0);
-
- /* write kernel into code memory.. */
- for(i = 0 ; i < sizeof(assp_kernel_image) / 2; i++) {
- m3_assp_write(card, MEMTYPE_INTERNAL_CODE,
- REV_B_CODE_MEMORY_BEGIN + i,
- assp_kernel_image[i]);
- }
-
- /*
- * We only have this one client and we know that 0x400
- * is free in our kernel's mem map, so lets just
- * drop it there. It seems that the minisrc doesn't
- * need vectors, so we won't bother with them..
- */
- for(i = 0 ; i < sizeof(assp_minisrc_image) / 2; i++) {
- m3_assp_write(card, MEMTYPE_INTERNAL_CODE,
- 0x400 + i,
- assp_minisrc_image[i]);
- }
-
- /*
- * write the coefficients for the low pass filter?
- */
- for(i = 0; i < MINISRC_LPF_LEN ; i++) {
- m3_assp_write(card, MEMTYPE_INTERNAL_CODE,
- 0x400 + MINISRC_COEF_LOC + i,
- minisrc_lpf[i]);
- }
-
- m3_assp_write(card, MEMTYPE_INTERNAL_CODE,
- 0x400 + MINISRC_COEF_LOC + MINISRC_LPF_LEN,
- 0x8000);
-
- /*
- * the minisrc is the only thing on
- * our task list..
- */
- m3_assp_write(card, MEMTYPE_INTERNAL_DATA,
- KDATA_TASK0,
- 0x400);
-
- /*
- * init the mixer number..
- */
-
- m3_assp_write(card, MEMTYPE_INTERNAL_DATA,
- KDATA_MIXER_TASK_NUMBER,0);
-
- /*
- * EXTREME KERNEL MASTER VOLUME
- */
- m3_assp_write(card, MEMTYPE_INTERNAL_DATA,
- KDATA_DAC_LEFT_VOLUME, ARB_VOLUME);
- m3_assp_write(card, MEMTYPE_INTERNAL_DATA,
- KDATA_DAC_RIGHT_VOLUME, ARB_VOLUME);
-
- card->mixer_list.mem_addr = KDATA_MIXER_XFER0;
- card->mixer_list.max = MAX_VIRTUAL_MIXER_CHANNELS;
- card->adc1_list.mem_addr = KDATA_ADC1_XFER0;
- card->adc1_list.max = MAX_VIRTUAL_ADC1_CHANNELS;
- card->dma_list.mem_addr = KDATA_DMA_XFER0;
- card->dma_list.max = MAX_VIRTUAL_DMA_CHANNELS;
- card->msrc_list.mem_addr = KDATA_INSTANCE0_MINISRC;
- card->msrc_list.max = MAX_INSTANCE_MINISRC;
-}
-
-static int setup_msrc(struct m3_card *card,
- struct assp_instance *inst, int index)
-{
- int data_bytes = 2 * ( MINISRC_TMP_BUFFER_SIZE / 2 +
- MINISRC_IN_BUFFER_SIZE / 2 +
- 1 + MINISRC_OUT_BUFFER_SIZE / 2 + 1 );
- int address, i;
-
- /*
- * the revb memory map has 0x1100 through 0x1c00
- * free.
- */
-
- /*
- * align instance address to 256 bytes so that it's
- * shifted list address is aligned.
- * list address = (mem address >> 1) >> 7;
- */
- data_bytes = (data_bytes + 255) & ~255;
- address = 0x1100 + ((data_bytes/2) * index);
-
- if((address + (data_bytes/2)) >= 0x1c00) {
- printk(KERN_ERR PFX "no memory for %d bytes at ind %d (addr 0x%x)\n",
- data_bytes, index, address);
- return -1;
- }
-
- for(i = 0; i < data_bytes/2 ; i++)
- m3_assp_write(card, MEMTYPE_INTERNAL_DATA,
- address + i, 0);
-
- inst->code = 0x400;
- inst->data = address;
-
- return 0;
-}
-
-static int m3_assp_client_init(struct m3_state *s)
-{
- setup_msrc(s->card, &(s->dac_inst), s->index * 2);
- setup_msrc(s->card, &(s->adc_inst), (s->index * 2) + 1);
-
- return 0;
-}
-
-static void m3_amp_enable(struct m3_card *card, int enable)
-{
- /*
- * this works for the reference board, have to find
- * out about others
- *
- * this needs more magic for 4 speaker, but..
- */
- int io = card->iobase;
- u16 gpo, polarity_port, polarity;
-
- if(!external_amp)
- return;
-
- if (gpio_pin >= 0 && gpio_pin <= 15) {
- polarity_port = 0x1000 + (0x100 * gpio_pin);
- } else {
- switch (card->card_type) {
- case ESS_ALLEGRO:
- polarity_port = 0x1800;
- break;
- default:
- polarity_port = 0x1100;
- /* Panasonic toughbook CF72 has to be different... */
- if(card->pcidev->subsystem_vendor == 0x10F7 && card->pcidev->subsystem_device == 0x833D)
- polarity_port = 0x1D00;
- break;
- }
- }
-
- gpo = (polarity_port >> 8) & 0x0F;
- polarity = polarity_port >> 12;
- if ( enable )
- polarity = !polarity;
- polarity = polarity << gpo;
- gpo = 1 << gpo;
-
- outw(~gpo , io + GPIO_MASK);
-
- outw( inw(io + GPIO_DIRECTION) | gpo ,
- io + GPIO_DIRECTION);
-
- outw( (GPO_SECONDARY_AC97 | GPO_PRIMARY_AC97 | polarity) ,
- io + GPIO_DATA);
-
- outw(0xffff , io + GPIO_MASK);
-}
-
-static int
-maestro_config(struct m3_card *card)
-{
- struct pci_dev *pcidev = card->pcidev;
- u32 n;
- u8 t; /* makes as much sense as 'n', no? */
-
- pci_read_config_dword(pcidev, PCI_ALLEGRO_CONFIG, &n);
- n &= REDUCED_DEBOUNCE;
- n |= PM_CTRL_ENABLE | CLK_DIV_BY_49 | USE_PCI_TIMING;
- pci_write_config_dword(pcidev, PCI_ALLEGRO_CONFIG, n);
-
- outb(RESET_ASSP, card->iobase + ASSP_CONTROL_B);
- pci_read_config_dword(pcidev, PCI_ALLEGRO_CONFIG, &n);
- n &= ~INT_CLK_SELECT;
- if(card->card_type >= ESS_MAESTRO3) {
- n &= ~INT_CLK_MULT_ENABLE;
- n |= INT_CLK_SRC_NOT_PCI;
- }
- n &= ~( CLK_MULT_MODE_SELECT | CLK_MULT_MODE_SELECT_2 );
- pci_write_config_dword(pcidev, PCI_ALLEGRO_CONFIG, n);
-
- if(card->card_type <= ESS_ALLEGRO) {
- pci_read_config_dword(pcidev, PCI_USER_CONFIG, &n);
- n |= IN_CLK_12MHZ_SELECT;
- pci_write_config_dword(pcidev, PCI_USER_CONFIG, n);
- }
-
- t = inb(card->iobase + ASSP_CONTROL_A);
- t &= ~( DSP_CLK_36MHZ_SELECT | ASSP_CLK_49MHZ_SELECT);
- t |= ASSP_CLK_49MHZ_SELECT;
- t |= ASSP_0_WS_ENABLE;
- outb(t, card->iobase + ASSP_CONTROL_A);
-
- outb(RUN_ASSP, card->iobase + ASSP_CONTROL_B);
-
- return 0;
-}
-
-static void m3_enable_ints(struct m3_card *card)
-{
- unsigned long io = card->iobase;
-
- outw(ASSP_INT_ENABLE, io + HOST_INT_CTRL);
- outb(inb(io + ASSP_CONTROL_C) | ASSP_HOST_INT_ENABLE,
- io + ASSP_CONTROL_C);
-}
-
-static struct file_operations m3_audio_fops = {
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .read = m3_read,
- .write = m3_write,
- .poll = m3_poll,
- .ioctl = m3_ioctl,
- .mmap = m3_mmap,
- .open = m3_open,
- .release = m3_release,
-};
-
-#ifdef CONFIG_PM
-static int alloc_dsp_suspendmem(struct m3_card *card)
-{
- int len = sizeof(u16) * (REV_B_CODE_MEMORY_LENGTH + REV_B_DATA_MEMORY_LENGTH);
-
- if( (card->suspend_mem = vmalloc(len)) == NULL)
- return 1;
-
- return 0;
-}
-
-#else
-#define alloc_dsp_suspendmem(args...) 0
-#endif
-
-/*
- * great day! this function is ugly as hell.
- */
-static int __devinit m3_probe(struct pci_dev *pci_dev, const struct pci_device_id *pci_id)
-{
- u32 n;
- int i;
- struct m3_card *card = NULL;
- int ret = 0;
- int card_type = pci_id->driver_data;
-
- DPRINTK(DPMOD, "in maestro_install\n");
-
- if (pci_enable_device(pci_dev))
- return -EIO;
-
- if (pci_set_dma_mask(pci_dev, M3_PCI_DMA_MASK)) {
- printk(KERN_ERR PFX "architecture does not support limiting to 28bit PCI bus addresses\n");
- return -ENODEV;
- }
-
- pci_set_master(pci_dev);
-
- if( (card = kmalloc(sizeof(struct m3_card), GFP_KERNEL)) == NULL) {
- printk(KERN_WARNING PFX "out of memory\n");
- return -ENOMEM;
- }
- memset(card, 0, sizeof(struct m3_card));
- card->pcidev = pci_dev;
- init_waitqueue_head(&card->suspend_queue);
-
- if ( ! request_region(pci_resource_start(pci_dev, 0),
- pci_resource_len (pci_dev, 0), M3_MODULE_NAME)) {
-
- printk(KERN_WARNING PFX "unable to reserve I/O space.\n");
- ret = -EBUSY;
- goto out;
- }
-
- card->iobase = pci_resource_start(pci_dev, 0);
-
- if(alloc_dsp_suspendmem(card)) {
- printk(KERN_WARNING PFX "couldn't alloc %d bytes for saving dsp state on suspend\n",
- REV_B_CODE_MEMORY_LENGTH + REV_B_DATA_MEMORY_LENGTH);
- ret = -ENOMEM;
- goto out;
- }
-
- card->card_type = card_type;
- card->irq = pci_dev->irq;
- card->next = devs;
- card->magic = M3_CARD_MAGIC;
- spin_lock_init(&card->lock);
- spin_lock_init(&card->ac97_lock);
- devs = card;
- for(i = 0; i<NR_DSPS; i++) {
- struct m3_state *s = &(card->channels[i]);
- s->dev_audio = -1;
- }
-
- printk(KERN_INFO PFX "Configuring ESS %s found at IO 0x%04X IRQ %d\n",
- card_names[card->card_type], card->iobase, card->irq);
-
- pci_read_config_dword(pci_dev, PCI_SUBSYSTEM_VENDOR_ID, &n);
- printk(KERN_INFO PFX " subvendor id: 0x%08x\n",n);
-
- maestro_config(card);
- m3_assp_halt(card);
-
- m3_codec_reset(card, 0);
-
- if(m3_codec_install(card)) {
- ret = -EIO;
- goto out;
- }
-
- m3_assp_init(card);
- m3_amp_enable(card, 1);
-
- for(i=0;i<NR_DSPS;i++) {
- struct m3_state *s=&card->channels[i];
-
- s->index = i;
-
- s->card = card;
- init_waitqueue_head(&s->dma_adc.wait);
- init_waitqueue_head(&s->dma_dac.wait);
- init_waitqueue_head(&s->open_wait);
- mutex_init(&(s->open_mutex));
- s->magic = M3_STATE_MAGIC;
-
- m3_assp_client_init(s);
-
- if(s->dma_adc.ready || s->dma_dac.ready || s->dma_adc.rawbuf)
- printk(KERN_WARNING PFX "initing a dsp device that is already in use?\n");
- /* register devices */
- if ((s->dev_audio = register_sound_dsp(&m3_audio_fops, -1)) < 0) {
- break;
- }
-
- if( allocate_dmabuf(card->pcidev, &(s->dma_adc)) ||
- allocate_dmabuf(card->pcidev, &(s->dma_dac))) {
- ret = -ENOMEM;
- goto out;
- }
- }
-
- if(request_irq(card->irq, m3_interrupt, IRQF_SHARED, card_names[card->card_type], card)) {
-
- printk(KERN_ERR PFX "unable to allocate irq %d,\n", card->irq);
-
- ret = -EIO;
- goto out;
- }
-
- pci_set_drvdata(pci_dev, card);
-
- m3_enable_ints(card);
- m3_assp_continue(card);
-
-out:
- if(ret) {
- if(card->iobase)
- release_region(pci_resource_start(pci_dev, 0), pci_resource_len(pci_dev, 0));
- vfree(card->suspend_mem);
- if(card->ac97) {
- unregister_sound_mixer(card->ac97->dev_mixer);
- kfree(card->ac97);
- }
- for(i=0;i<NR_DSPS;i++)
- {
- struct m3_state *s = &card->channels[i];
- if(s->dev_audio != -1)
- unregister_sound_dsp(s->dev_audio);
- }
- kfree(card);
- }
-
- return ret;
-}
-
-static void m3_remove(struct pci_dev *pci_dev)
-{
- struct m3_card *card;
-
- unregister_reboot_notifier(&m3_reboot_nb);
-
- while ((card = devs)) {
- int i;
- devs = devs->next;
-
- free_irq(card->irq, card);
- unregister_sound_mixer(card->ac97->dev_mixer);
- kfree(card->ac97);
-
- for(i=0;i<NR_DSPS;i++)
- {
- struct m3_state *s = &card->channels[i];
- if(s->dev_audio < 0)
- continue;
-
- unregister_sound_dsp(s->dev_audio);
- free_dmabuf(card->pcidev, &s->dma_adc);
- free_dmabuf(card->pcidev, &s->dma_dac);
- }
-
- release_region(card->iobase, 256);
- vfree(card->suspend_mem);
- kfree(card);
- }
- devs = NULL;
-}
-
-/*
- * some bioses like the sound chip to be powered down
- * at shutdown. We're just calling _suspend to
- * achieve that..
- */
-static int m3_notifier(struct notifier_block *nb, unsigned long event, void *buf)
-{
- struct m3_card *card;
-
- DPRINTK(DPMOD, "notifier suspending all cards\n");
-
- for(card = devs; card != NULL; card = card->next) {
- if(!card->in_suspend)
- m3_suspend(card->pcidev, PMSG_SUSPEND); /* XXX legal? */
- }
- return 0;
-}
-
-static int m3_suspend(struct pci_dev *pci_dev, pm_message_t state)
-{
- unsigned long flags;
- int i;
- struct m3_card *card = pci_get_drvdata(pci_dev);
-
- /* must be a better way.. */
- spin_lock_irqsave(&card->lock, flags);
-
- DPRINTK(DPMOD, "pm in dev %p\n",card);
-
- for(i=0;i<NR_DSPS;i++) {
- struct m3_state *s = &card->channels[i];
-
- if(s->dev_audio == -1)
- continue;
-
- DPRINTK(DPMOD, "stop_adc/dac() device %d\n",i);
- stop_dac(s);
- stop_adc(s);
- }
-
- mdelay(10); /* give the assp a chance to idle.. */
-
- m3_assp_halt(card);
-
- if(card->suspend_mem) {
- int index = 0;
-
- DPRINTK(DPMOD, "saving code\n");
- for(i = REV_B_CODE_MEMORY_BEGIN ; i <= REV_B_CODE_MEMORY_END; i++)
- card->suspend_mem[index++] =
- m3_assp_read(card, MEMTYPE_INTERNAL_CODE, i);
- DPRINTK(DPMOD, "saving data\n");
- for(i = REV_B_DATA_MEMORY_BEGIN ; i <= REV_B_DATA_MEMORY_END; i++)
- card->suspend_mem[index++] =
- m3_assp_read(card, MEMTYPE_INTERNAL_DATA, i);
- }
-
- DPRINTK(DPMOD, "powering down apci regs\n");
- m3_outw(card, 0xffff, 0x54);
- m3_outw(card, 0xffff, 0x56);
-
- card->in_suspend = 1;
-
- spin_unlock_irqrestore(&card->lock, flags);
-
- return 0;
-}
-
-static int m3_resume(struct pci_dev *pci_dev)
-{
- unsigned long flags;
- int index;
- int i;
- struct m3_card *card = pci_get_drvdata(pci_dev);
-
- spin_lock_irqsave(&card->lock, flags);
- card->in_suspend = 0;
-
- DPRINTK(DPMOD, "resuming\n");
-
- /* first lets just bring everything back. .*/
-
- DPRINTK(DPMOD, "bringing power back on card 0x%p\n",card);
- m3_outw(card, 0, 0x54);
- m3_outw(card, 0, 0x56);
-
- DPRINTK(DPMOD, "restoring pci configs and reseting codec\n");
- maestro_config(card);
- m3_assp_halt(card);
- m3_codec_reset(card, 1);
-
- DPRINTK(DPMOD, "restoring dsp code card\n");
- index = 0;
- for(i = REV_B_CODE_MEMORY_BEGIN ; i <= REV_B_CODE_MEMORY_END; i++)
- m3_assp_write(card, MEMTYPE_INTERNAL_CODE, i,
- card->suspend_mem[index++]);
- for(i = REV_B_DATA_MEMORY_BEGIN ; i <= REV_B_DATA_MEMORY_END; i++)
- m3_assp_write(card, MEMTYPE_INTERNAL_DATA, i,
- card->suspend_mem[index++]);
-
- /* tell the dma engine to restart itself */
- m3_assp_write(card, MEMTYPE_INTERNAL_DATA,
- KDATA_DMA_ACTIVE, 0);
-
- DPRINTK(DPMOD, "resuming dsp\n");
- m3_assp_continue(card);
-
- DPRINTK(DPMOD, "enabling ints\n");
- m3_enable_ints(card);
-
- /* bring back the old school flavor */
- for(i = 0; i < SOUND_MIXER_NRDEVICES ; i++) {
- int state = card->ac97->mixer_state[i];
- if (!supported_mixer(card->ac97, i))
- continue;
-
- card->ac97->write_mixer(card->ac97, i,
- state & 0xff, (state >> 8) & 0xff);
- }
-
- m3_amp_enable(card, 1);
-
- /*
- * now we flip on the music
- */
- for(i=0;i<NR_DSPS;i++) {
- struct m3_state *s = &card->channels[i];
- if(s->dev_audio == -1)
- continue;
- /*
- * db->ready makes it so these guys can be
- * called unconditionally..
- */
- DPRINTK(DPMOD, "turning on dacs ind %d\n",i);
- start_dac(s);
- start_adc(s);
- }
-
- spin_unlock_irqrestore(&card->lock, flags);
-
- /*
- * all right, we think things are ready,
- * wake up people who were using the device
- * when we suspended
- */
- wake_up(&card->suspend_queue);
-
- return 0;
-}
-
-MODULE_AUTHOR("Zach Brown <zab@zabbo.net>");
-MODULE_DESCRIPTION("ESS Maestro3/Allegro Driver");
-MODULE_LICENSE("GPL");
-
-#ifdef M_DEBUG
-module_param(debug, int, 0);
-#endif
-module_param(external_amp, int, 0);
-module_param(gpio_pin, int, 0);
-
-static struct pci_driver m3_pci_driver = {
- .name = "ess_m3_audio",
- .id_table = m3_id_table,
- .probe = m3_probe,
- .remove = m3_remove,
- .suspend = m3_suspend,
- .resume = m3_resume,
-};
-
-static int __init m3_init_module(void)
-{
- printk(KERN_INFO PFX "version " DRIVER_VERSION " built at " __TIME__ " " __DATE__ "\n");
-
- if (register_reboot_notifier(&m3_reboot_nb)) {
- printk(KERN_WARNING PFX "reboot notifier registration failed\n");
- return -ENODEV; /* ? */
- }
-
- if (pci_register_driver(&m3_pci_driver)) {
- unregister_reboot_notifier(&m3_reboot_nb);
- return -ENODEV;
- }
- return 0;
-}
-
-static void __exit m3_cleanup_module(void)
-{
- pci_unregister_driver(&m3_pci_driver);
-}
-
-module_init(m3_init_module);
-module_exit(m3_cleanup_module);
-
-void check_suspend(struct m3_card *card)
-{
- DECLARE_WAITQUEUE(wait, current);
-
- if(!card->in_suspend)
- return;
-
- card->in_suspend++;
- add_wait_queue(&card->suspend_queue, &wait);
- set_current_state(TASK_UNINTERRUPTIBLE);
- schedule();
- remove_wait_queue(&card->suspend_queue, &wait);
- set_current_state(TASK_RUNNING);
-}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-22 23:05:57 +0000