diff options
Diffstat (limited to 'sound/oss/maestro3.c')
| -rw-r--r-- | sound/oss/maestro3.c | 2969 |
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); -} |