diff options
Diffstat (limited to 'sound/oss/rme96xx.c')
| -rw-r--r-- | sound/oss/rme96xx.c | 1857 |
1 files changed, 0 insertions, 1857 deletions
diff --git a/sound/oss/rme96xx.c b/sound/oss/rme96xx.c deleted file mode 100644 index f17d25b..0000000 --- a/sound/oss/rme96xx.c +++ /dev/null @@ -1,1857 +0,0 @@ -/* (C) 2000 Guenter Geiger <geiger@debian.org> - with copy/pastes from the driver of Winfried Ritsch <ritsch@iem.kug.ac.at> - based on es1370.c - - - - * 10 Jan 2001: 0.1 initial version - * 19 Jan 2001: 0.2 fixed bug in select() - * 27 Apr 2001: 0.3 more than one card usable - * 11 May 2001: 0.4 fixed for SMP, included into kernel source tree - * 17 May 2001: 0.5 draining code didn't work on new cards - * 18 May 2001: 0.6 remove synchronize_irq() call - * 17 Jul 2001: 0.7 updated xrmectrl to make it work for newer cards - * 2 feb 2002: 0.8 fixed pci device handling, see below for patches from Heiko (Thanks!) - Marcus Meissner <Marcus.Meissner@caldera.de> - - Modifications - Heiko Purnhagen <purnhage@tnt.uni-hannover.de> - HP20020108 fixed handling of "large" read() - HP20020116 towards REV 1.5 support, based on ALSA's card-rme9652.c - HP20020118 made mixer ioctl and handling of devices>1 more safe - HP20020201 fixed handling of "large" read() properly - added REV 1.5 S/P-DIF receiver support - SNDCTL_DSP_SPEED now returns the actual speed - * 10 Aug 2002: added synchronize_irq() again - -TODO: - - test more than one card --- done - - check for pci IOREGION (see es1370) in rme96xx_probe ?? - - error detection - - mmap interface - - mixer mmap interface - - mixer ioctl - - get rid of noise upon first open (why ??) - - allow multiple open (at least for read) - - allow multiple open for non overlapping regions - - recheck the multiple devices part (offsets of different devices, etc) - - do decent draining in _release --- done - - SMP support - - what about using fragstotal>2 for small fragsize? (HP20020118) - - add support for AFMT_S32_LE -*/ - -#ifndef RMEVERSION -#define RMEVERSION "0.8" -#endif - -#include <linux/module.h> -#include <linux/string.h> -#include <linux/sched.h> -#include <linux/sound.h> -#include <linux/soundcard.h> -#include <linux/pci.h> -#include <linux/smp_lock.h> -#include <linux/delay.h> -#include <linux/slab.h> -#include <linux/interrupt.h> -#include <linux/init.h> -#include <linux/interrupt.h> -#include <linux/poll.h> -#include <linux/wait.h> -#include <linux/mutex.h> - -#include <asm/dma.h> -#include <asm/page.h> - -#include "rme96xx.h" - -#define NR_DEVICE 2 - -static int devices = 1; -module_param(devices, int, 0); -MODULE_PARM_DESC(devices, "number of dsp devices allocated by the driver"); - - -MODULE_AUTHOR("Guenter Geiger, geiger@debian.org"); -MODULE_DESCRIPTION("RME9652/36 \"Hammerfall\" Driver"); -MODULE_LICENSE("GPL"); - - -#ifdef DEBUG -#define DBG(x) printk("RME_DEBUG:");x -#define COMM(x) printk("RME_COMM: " x "\n"); -#else -#define DBG(x) while (0) {} -#define COMM(x) -#endif - -/*-------------------------------------------------------------------------- - Preporcessor Macros and Definitions - --------------------------------------------------------------------------*/ - -#define RME96xx_MAGIC 0x6473 - -/* Registers-Space in offsets from base address with 16MByte size */ - -#define RME96xx_IO_EXTENT 16l*1024l*1024l -#define RME96xx_CHANNELS_PER_CARD 26 - -/* Write - Register */ - -/* 0,4,8,12,16,20,24,28 ... hardware init (erasing fifo-pointer intern) */ -#define RME96xx_num_of_init_regs 8 - -#define RME96xx_init_buffer (0/4) -#define RME96xx_play_buffer (32/4) /* pointer to 26x64kBit RAM from mainboard */ -#define RME96xx_rec_buffer (36/4) /* pointer to 26x64kBit RAM from mainboard */ -#define RME96xx_control_register (64/4) /* exact meaning see below */ -#define RME96xx_irq_clear (96/4) /* irq acknowledge */ -#define RME96xx_time_code (100/4) /* if used with alesis adat */ -#define RME96xx_thru_base (128/4) /* 132...228 Thru for 26 channels */ -#define RME96xx_thru_channels RME96xx_CHANNELS_PER_CARD - -/* Read Register */ - -#define RME96xx_status_register 0 /* meaning see below */ - - - -/* Status Register: */ -/* ------------------------------------------------------------------------ */ -#define RME96xx_IRQ 0x0000001 /* IRQ is High if not reset by RMExx_irq_clear */ -#define RME96xx_lock_2 0x0000002 /* ADAT 3-PLL: 1=locked, 0=unlocked */ -#define RME96xx_lock_1 0x0000004 /* ADAT 2-PLL: 1=locked, 0=unlocked */ -#define RME96xx_lock_0 0x0000008 /* ADAT 1-PLL: 1=locked, 0=unlocked */ - -#define RME96xx_fs48 0x0000010 /* sample rate 0 ...44.1/88.2, 1 ... 48/96 Khz */ -#define RME96xx_wsel_rd 0x0000020 /* if Word-Clock is used and valid then 1 */ -#define RME96xx_buf_pos1 0x0000040 /* Bit 6..15 : Position of buffer-pointer in 64Bytes-blocks */ -#define RME96xx_buf_pos2 0x0000080 /* resolution +/- 1 64Byte/block (since 64Bytes bursts) */ - -#define RME96xx_buf_pos3 0x0000100 /* 10 bits = 1024 values */ -#define RME96xx_buf_pos4 0x0000200 /* if we mask off the first 6 bits, we can take the status */ -#define RME96xx_buf_pos5 0x0000400 /* register as sample counter in the hardware buffer */ -#define RME96xx_buf_pos6 0x0000800 - -#define RME96xx_buf_pos7 0x0001000 -#define RME96xx_buf_pos8 0x0002000 -#define RME96xx_buf_pos9 0x0004000 -#define RME96xx_buf_pos10 0x0008000 - -#define RME96xx_sync_2 0x0010000 /* if ADAT-IN3 synced to system clock */ -#define RME96xx_sync_1 0x0020000 /* if ADAT-IN2 synced to system clock */ -#define RME96xx_sync_0 0x0040000 /* if ADAT-IN1 synced to system clock */ -#define RME96xx_DS_rd 0x0080000 /* 1=Double Speed, 0=Normal Speed */ - -#define RME96xx_tc_busy 0x0100000 /* 1=time-code copy in progress (960ms) */ -#define RME96xx_tc_out 0x0200000 /* time-code out bit */ -#define RME96xx_F_0 0x0400000 /* 000=64kHz, 100=88.2kHz, 011=96kHz */ -#define RME96xx_F_1 0x0800000 /* 111=32kHz, 110=44.1kHz, 101=48kHz, */ - -#define RME96xx_F_2 0x1000000 /* 001=Rev 1.5+ external Crystal Chip */ -#define RME96xx_ERF 0x2000000 /* Error-Flag of SDPIF Receiver (1=No Lock)*/ -#define RME96xx_buffer_id 0x4000000 /* toggles by each interrupt on rec/play */ -#define RME96xx_tc_valid 0x8000000 /* 1 = a signal is detected on time-code input */ -#define RME96xx_SPDIF_READ 0x10000000 /* byte available from Rev 1.5+ SPDIF interface */ - -/* Status Register Fields */ - -#define RME96xx_lock (RME96xx_lock_0|RME96xx_lock_1|RME96xx_lock_2) -#define RME96xx_sync (RME96xx_sync_0|RME96xx_sync_1|RME96xx_sync_2) -#define RME96xx_F (RME96xx_F_0|RME96xx_F_1|RME96xx_F_2) -#define rme96xx_decode_spdif_rate(x) ((x)>>22) - -/* Bit 6..15 : h/w buffer pointer */ -#define RME96xx_buf_pos 0x000FFC0 -/* Bits 31,30,29 are bits 5,4,3 of h/w pointer position on later - Rev G EEPROMS and Rev 1.5 cards or later. -*/ -#define RME96xx_REV15_buf_pos(x) ((((x)&0xE0000000)>>26)|((x)&RME96xx_buf_pos)) - - -/* Control-Register: */ -/*--------------------------------------------------------------------------------*/ - -#define RME96xx_start_bit 0x0001 /* start record/play */ -#define RME96xx_latency0 0x0002 /* Buffer size / latency */ -#define RME96xx_latency1 0x0004 /* buffersize = 512Bytes * 2^n */ -#define RME96xx_latency2 0x0008 /* 0=64samples ... 7=8192samples */ - -#define RME96xx_Master 0x0010 /* Clock Mode 1=Master, 0=Slave/Auto */ -#define RME96xx_IE 0x0020 /* Interupt Enable */ -#define RME96xx_freq 0x0040 /* samplerate 0=44.1/88.2, 1=48/96 kHz*/ -#define RME96xx_freq1 0x0080 /* samplerate 0=32 kHz, 1=other rates ??? (from ALSA, but may be wrong) */ -#define RME96xx_DS 0x0100 /* double speed 0=44.1/48, 1=88.2/96 Khz */ -#define RME96xx_PRO 0x0200 /* SPDIF-OUT 0=consumer, 1=professional */ -#define RME96xx_EMP 0x0400 /* SPDIF-OUT emphasis 0=off, 1=on */ -#define RME96xx_Dolby 0x0800 /* SPDIF-OUT non-audio bit 1=set, 0=unset */ - -#define RME96xx_opt_out 0x1000 /* use 1st optical OUT as SPDIF: 1=yes, 0=no */ -#define RME96xx_wsel 0x2000 /* use Wordclock as sync (overwrites master) */ -#define RME96xx_inp_0 0x4000 /* SPDIF-IN 00=optical (ADAT1), */ -#define RME96xx_inp_1 0x8000 /* 01=coaxial (Cinch), 10=internal CDROM */ - -#define RME96xx_SyncRef0 0x10000 /* preferred sync-source in autosync */ -#define RME96xx_SyncRef1 0x20000 /* 00=ADAT1, 01=ADAT2, 10=ADAT3, 11=SPDIF */ - -#define RME96xx_SPDIF_RESET (1<<18) /* Rev 1.5+: h/w SPDIF receiver */ -#define RME96xx_SPDIF_SELECT (1<<19) -#define RME96xx_SPDIF_CLOCK (1<<20) -#define RME96xx_SPDIF_WRITE (1<<21) -#define RME96xx_ADAT1_INTERNAL (1<<22) /* Rev 1.5+: if set, internal CD connector carries ADAT */ - - -#define RME96xx_ctrl_init (RME96xx_latency0 |\ - RME96xx_Master |\ - RME96xx_inp_1) - - - -/* Control register fields and shortcuts */ - -#define RME96xx_latency (RME96xx_latency0|RME96xx_latency1|RME96xx_latency2) -#define RME96xx_inp (RME96xx_inp_0|RME96xx_inp_1) -#define RME96xx_SyncRef (RME96xx_SyncRef0|RME96xx_SyncRef1) -#define RME96xx_mixer_allowed (RME96xx_Master|RME96xx_PRO|RME96xx_EMP|RME96xx_Dolby|RME96xx_opt_out|RME96xx_wsel|RME96xx_inp|RME96xx_SyncRef|RME96xx_ADAT1_INTERNAL) - -/* latency = 512Bytes * 2^n, where n is made from Bit3 ... Bit1 (??? HP20020201) */ - -#define RME96xx_SET_LATENCY(x) (((x)&0x7)<<1) -#define RME96xx_GET_LATENCY(x) (((x)>>1)&0x7) -#define RME96xx_SET_inp(x) (((x)&0x3)<<14) -#define RME96xx_GET_inp(x) (((x)>>14)&0x3) -#define RME96xx_SET_SyncRef(x) (((x)&0x3)<<17) -#define RME96xx_GET_SyncRef(x) (((x)>>17)&0x3) - - -/* buffer sizes */ -#define RME96xx_BYTES_PER_SAMPLE 4 /* sizeof(u32) */ -#define RME_16K 16*1024 - -#define RME96xx_DMA_MAX_SAMPLES (RME_16K) -#define RME96xx_DMA_MAX_SIZE (RME_16K * RME96xx_BYTES_PER_SAMPLE) -#define RME96xx_DMA_MAX_SIZE_ALL (RME96xx_DMA_MAX_SIZE * RME96xx_CHANNELS_PER_CARD) - -#define RME96xx_NUM_OF_FRAGMENTS 2 -#define RME96xx_FRAGMENT_MAX_SIZE (RME96xx_DMA_MAX_SIZE/2) -#define RME96xx_FRAGMENT_MAX_SAMPLES (RME96xx_DMA_MAX_SAMPLES/2) -#define RME96xx_MAX_LATENCY 7 /* 16k samples */ - - -#define RME96xx_MAX_DEVS 4 /* we provide some OSS stereodevs */ -#define RME96xx_MASK_DEVS 0x3 /* RME96xx_MAX_DEVS-1 */ - -#define RME_MESS "rme96xx:" -/*------------------------------------------------------------------------ - Types, struct and function declarations - ------------------------------------------------------------------------*/ - - -/* --------------------------------------------------------------------- */ - -static const char invalid_magic[] = KERN_CRIT RME_MESS" invalid magic value\n"; - -#define VALIDATE_STATE(s) \ -({ \ - if (!(s) || (s)->magic != RME96xx_MAGIC) { \ - printk(invalid_magic); \ - return -ENXIO; \ - } \ -}) - -/* --------------------------------------------------------------------- */ - - -static struct file_operations rme96xx_audio_fops; -static struct file_operations rme96xx_mixer_fops; -static int numcards; - -typedef int32_t raw_sample_t; - -typedef struct _rme96xx_info { - - /* hardware settings */ - int magic; - struct pci_dev * pcidev; /* pci_dev structure */ - unsigned long __iomem *iobase; - unsigned int irq; - - /* list of rme96xx devices */ - struct list_head devs; - - spinlock_t lock; - - u32 *recbuf; /* memory for rec buffer */ - u32 *playbuf; /* memory for play buffer */ - - u32 control_register; - - u32 thru_bits; /* thru 1=on, 0=off channel 1=Bit1... channel 26= Bit26 */ - - int hw_rev; /* h/w rev * 10 (i.e. 1.5 has hw_rev = 15) */ - char *card_name; /* hammerfall or hammerfall light names */ - - int open_count; /* unused ??? HP20020201 */ - - int rate; - int latency; - unsigned int fragsize; - int started; - - int hwptr; /* can be negativ because of pci burst offset */ - unsigned int hwbufid; /* set by interrupt, buffer which is written/read now */ - - struct dmabuf { - - unsigned int format; - int formatshift; - int inchannels; /* number of channels for device */ - int outchannels; /* number of channels for device */ - int mono; /* if true, we play mono on 2 channels */ - int inoffset; /* which channel is considered the first one */ - int outoffset; - - /* state */ - int opened; /* open() made */ - int started; /* first write/read */ - int mmapped; /* mmap */ - int open_mode; - - struct _rme96xx_info *s; - - /* pointer to read/write position in buffer */ - unsigned readptr; - unsigned writeptr; - - unsigned error; /* over/underruns cleared on sync again */ - - /* waiting and locking */ - wait_queue_head_t wait; - struct mutex open_mutex; - wait_queue_head_t open_wait; - - } dma[RME96xx_MAX_DEVS]; - - int dspnum[RME96xx_MAX_DEVS]; /* register with sound subsystem */ - int mixer; /* register with sound subsystem */ -} rme96xx_info; - - -/* fiddling with the card (first level hardware control) */ - -static inline void rme96xx_set_ctrl(rme96xx_info* s,int mask) -{ - - s->control_register|=mask; - writel(s->control_register,s->iobase + RME96xx_control_register); - -} - -static inline void rme96xx_unset_ctrl(rme96xx_info* s,int mask) -{ - - s->control_register&=(~mask); - writel(s->control_register,s->iobase + RME96xx_control_register); - -} - -static inline int rme96xx_get_sample_rate_status(rme96xx_info* s) -{ - int val; - u32 status; - status = readl(s->iobase + RME96xx_status_register); - val = (status & RME96xx_fs48) ? 48000 : 44100; - if (status & RME96xx_DS_rd) - val *= 2; - return val; -} - -static inline int rme96xx_get_sample_rate_ctrl(rme96xx_info* s) -{ - int val; - val = (s->control_register & RME96xx_freq) ? 48000 : 44100; - if (s->control_register & RME96xx_DS) - val *= 2; - return val; -} - - -/* code from ALSA card-rme9652.c for rev 1.5 SPDIF receiver HP 20020201 */ - -static void rme96xx_spdif_set_bit (rme96xx_info* s, int mask, int onoff) -{ - if (onoff) - s->control_register |= mask; - else - s->control_register &= ~mask; - - writel(s->control_register,s->iobase + RME96xx_control_register); -} - -static void rme96xx_spdif_write_byte (rme96xx_info* s, const int val) -{ - long mask; - long i; - - for (i = 0, mask = 0x80; i < 8; i++, mask >>= 1) { - if (val & mask) - rme96xx_spdif_set_bit (s, RME96xx_SPDIF_WRITE, 1); - else - rme96xx_spdif_set_bit (s, RME96xx_SPDIF_WRITE, 0); - - rme96xx_spdif_set_bit (s, RME96xx_SPDIF_CLOCK, 1); - rme96xx_spdif_set_bit (s, RME96xx_SPDIF_CLOCK, 0); - } -} - -static int rme96xx_spdif_read_byte (rme96xx_info* s) -{ - long mask; - long val; - long i; - - val = 0; - - for (i = 0, mask = 0x80; i < 8; i++, mask >>= 1) { - rme96xx_spdif_set_bit (s, RME96xx_SPDIF_CLOCK, 1); - if (readl(s->iobase + RME96xx_status_register) & RME96xx_SPDIF_READ) - val |= mask; - rme96xx_spdif_set_bit (s, RME96xx_SPDIF_CLOCK, 0); - } - - return val; -} - -static void rme96xx_write_spdif_codec (rme96xx_info* s, const int address, const int data) -{ - rme96xx_spdif_set_bit (s, RME96xx_SPDIF_SELECT, 1); - rme96xx_spdif_write_byte (s, 0x20); - rme96xx_spdif_write_byte (s, address); - rme96xx_spdif_write_byte (s, data); - rme96xx_spdif_set_bit (s, RME96xx_SPDIF_SELECT, 0); -} - - -static int rme96xx_spdif_read_codec (rme96xx_info* s, const int address) -{ - int ret; - - rme96xx_spdif_set_bit (s, RME96xx_SPDIF_SELECT, 1); - rme96xx_spdif_write_byte (s, 0x20); - rme96xx_spdif_write_byte (s, address); - rme96xx_spdif_set_bit (s, RME96xx_SPDIF_SELECT, 0); - rme96xx_spdif_set_bit (s, RME96xx_SPDIF_SELECT, 1); - - rme96xx_spdif_write_byte (s, 0x21); - ret = rme96xx_spdif_read_byte (s); - rme96xx_spdif_set_bit (s, RME96xx_SPDIF_SELECT, 0); - - return ret; -} - -static void rme96xx_initialize_spdif_receiver (rme96xx_info* s) -{ - /* XXX what unsets this ? */ - /* no idea ??? HP 20020201 */ - - s->control_register |= RME96xx_SPDIF_RESET; - - rme96xx_write_spdif_codec (s, 4, 0x40); - rme96xx_write_spdif_codec (s, 17, 0x13); - rme96xx_write_spdif_codec (s, 6, 0x02); -} - -static inline int rme96xx_spdif_sample_rate (rme96xx_info *s, int *spdifrate) -{ - unsigned int rate_bits; - - *spdifrate = 0x1; - if (readl(s->iobase + RME96xx_status_register) & RME96xx_ERF) { - return -1; /* error condition */ - } - - if (s->hw_rev == 15) { - - int x, y, ret; - - x = rme96xx_spdif_read_codec (s, 30); - - if (x != 0) - y = 48000 * 64 / x; - else - y = 0; - - if (y > 30400 && y < 33600) {ret = 32000; *spdifrate = 0x7;} - else if (y > 41900 && y < 46000) {ret = 44100; *spdifrate = 0x6;} - else if (y > 46000 && y < 50400) {ret = 48000; *spdifrate = 0x5;} - else if (y > 60800 && y < 67200) {ret = 64000; *spdifrate = 0x0;} - else if (y > 83700 && y < 92000) {ret = 88200; *spdifrate = 0x4;} - else if (y > 92000 && y < 100000) {ret = 96000; *spdifrate = 0x3;} - else {ret = 0; *spdifrate = 0x1;} - return ret; - } - - rate_bits = readl(s->iobase + RME96xx_status_register) & RME96xx_F; - - switch (*spdifrate = rme96xx_decode_spdif_rate(rate_bits)) { - case 0x7: - return 32000; - break; - - case 0x6: - return 44100; - break; - - case 0x5: - return 48000; - break; - - case 0x4: - return 88200; - break; - - case 0x3: - return 96000; - break; - - case 0x0: - return 64000; - break; - - default: - /* was an ALSA warning ... - snd_printk("%s: unknown S/PDIF input rate (bits = 0x%x)\n", - s->card_name, rate_bits); - */ - return 0; - break; - } -} - -/* end of code from ALSA card-rme9652.c */ - - - -/* the hwbuf in the status register seems to have some jitter, to get rid of - it, we first only let the numbers grow, to be on the secure side we - subtract a certain amount RME96xx_BURSTBYTES from the resulting number */ - -/* the function returns the hardware pointer in bytes */ -#define RME96xx_BURSTBYTES -64 /* bytes by which hwptr could be off */ - -static inline int rme96xx_gethwptr(rme96xx_info* s,int exact) -{ - unsigned long flags; - if (exact) { - unsigned int hwp; -/* the hwptr seems to be rather unreliable :(, so we don't use it */ - spin_lock_irqsave(&s->lock,flags); - - hwp = readl(s->iobase + RME96xx_status_register) & 0xffc0; - s->hwptr = (hwp < s->hwptr) ? s->hwptr : hwp; -// s->hwptr = hwp; - - spin_unlock_irqrestore(&s->lock,flags); - return (s->hwptr+RME96xx_BURSTBYTES) & ((s->fragsize<<1)-1); - } - return (s->hwbufid ? s->fragsize : 0); -} - -static inline void rme96xx_setlatency(rme96xx_info* s,int l) -{ - s->latency = l; - s->fragsize = 1<<(8+l); - rme96xx_unset_ctrl(s,RME96xx_latency); - rme96xx_set_ctrl(s,RME96xx_SET_LATENCY(l)); -} - - -static void rme96xx_clearbufs(struct dmabuf* dma) -{ - int i,j; - unsigned long flags; - - /* clear dmabufs */ - for(i=0;i<devices;i++) { - for (j=0;j<dma->outchannels + dma->mono;j++) - memset(&dma->s->playbuf[(dma->outoffset + j)*RME96xx_DMA_MAX_SAMPLES], - 0, RME96xx_DMA_MAX_SIZE); - } - spin_lock_irqsave(&dma->s->lock,flags); - dma->writeptr = 0; - dma->readptr = 0; - spin_unlock_irqrestore(&dma->s->lock,flags); -} - -static int rme96xx_startcard(rme96xx_info *s,int stop) -{ - int i; - unsigned long flags; - - COMM ("startcard"); - if(s->control_register & RME96xx_IE){ - /* disable interrupt first */ - - rme96xx_unset_ctrl( s,RME96xx_start_bit ); - udelay(10); - rme96xx_unset_ctrl( s,RME96xx_IE); - spin_lock_irqsave(&s->lock,flags); /* timing is critical */ - s->started = 0; - spin_unlock_irqrestore(&s->lock,flags); - if (stop) { - COMM("Sound card stopped"); - return 1; - } - } - COMM ("interrupt disabled"); - /* first initialize all pointers on card */ - for(i=0;i<RME96xx_num_of_init_regs;i++){ - writel(0,s->iobase + i); - udelay(10); /* ?? */ - } - COMM ("regs cleaned"); - - spin_lock_irqsave(&s->lock,flags); /* timing is critical */ - udelay(10); - s->started = 1; - s->hwptr = 0; - spin_unlock_irqrestore(&s->lock,flags); - - rme96xx_set_ctrl( s, RME96xx_IE | RME96xx_start_bit); - - - COMM("Sound card started"); - - return 1; -} - - -static inline int rme96xx_getospace(struct dmabuf * dma, unsigned int hwp) -{ - int cnt; - int swptr; - unsigned long flags; - - spin_lock_irqsave(&dma->s->lock,flags); - swptr = dma->writeptr; - cnt = (hwp - swptr); - - if (cnt < 0) { - cnt = ((dma->s->fragsize<<1) - swptr); - } - spin_unlock_irqrestore(&dma->s->lock,flags); - return cnt; -} - -static inline int rme96xx_getispace(struct dmabuf * dma, unsigned int hwp) -{ - int cnt; - int swptr; - unsigned long flags; - - spin_lock_irqsave(&dma->s->lock,flags); - swptr = dma->readptr; - cnt = (hwp - swptr); - - if (cnt < 0) { - cnt = ((dma->s->fragsize<<1) - swptr); - } - spin_unlock_irqrestore(&dma->s->lock,flags); - return cnt; -} - - -static inline int rme96xx_copyfromuser(struct dmabuf* dma,const char __user * buffer,int count,int hop) -{ - int swptr = dma->writeptr; - switch (dma->format) { - case AFMT_S32_BLOCKED: - { - char __user * buf = (char __user *)buffer; - int cnt = count/dma->outchannels; - int i; - for (i=0;i < dma->outchannels;i++) { - char* hwbuf =(char*) &dma->s->playbuf[(dma->outoffset + i)*RME96xx_DMA_MAX_SAMPLES]; - hwbuf+=swptr; - - if (copy_from_user(hwbuf,buf, cnt)) - return -1; - buf+=hop; - } - swptr+=cnt; - break; - } - case AFMT_S16_LE: - { - int i,j; - int cnt = count/dma->outchannels; - for (i=0;i < dma->outchannels + dma->mono;i++) { - short __user * sbuf = (short __user *)buffer + i*(!dma->mono); - short* hwbuf =(short*) &dma->s->playbuf[(dma->outoffset + i)*RME96xx_DMA_MAX_SAMPLES]; - hwbuf+=(swptr>>1); - for (j=0;j<(cnt>>1);j++) { - hwbuf++; /* skip the low 16 bits */ - __get_user(*hwbuf++,sbuf++); - sbuf+=(dma->outchannels-1); - } - } - swptr += (cnt<<1); - break; - } - default: - printk(RME_MESS" unsupported format\n"); - return -1; - } /* switch */ - - swptr&=((dma->s->fragsize<<1) -1); - dma->writeptr = swptr; - - return 0; -} - -/* The count argument is the number of bytes */ -static inline int rme96xx_copytouser(struct dmabuf* dma,const char __user* buffer,int count,int hop) -{ - int swptr = dma->readptr; - switch (dma->format) { - case AFMT_S32_BLOCKED: - { - char __user * buf = (char __user *)buffer; - int cnt = count/dma->inchannels; - int i; - - for (i=0;i < dma->inchannels;i++) { - char* hwbuf =(char*) &dma->s->recbuf[(dma->inoffset + i)*RME96xx_DMA_MAX_SAMPLES]; - hwbuf+=swptr; - - if (copy_to_user(buf,hwbuf,cnt)) - return -1; - buf+=hop; - } - swptr+=cnt; - break; - } - case AFMT_S16_LE: - { - int i,j; - int cnt = count/dma->inchannels; - for (i=0;i < dma->inchannels;i++) { - short __user * sbuf = (short __user *)buffer + i; - short* hwbuf =(short*) &dma->s->recbuf[(dma->inoffset + i)*RME96xx_DMA_MAX_SAMPLES]; - hwbuf+=(swptr>>1); - for (j=0;j<(cnt>>1);j++) { - hwbuf++; - __put_user(*hwbuf++,sbuf++); - sbuf+=(dma->inchannels-1); - } - } - swptr += (cnt<<1); - break; - } - default: - printk(RME_MESS" unsupported format\n"); - return -1; - } /* switch */ - - swptr&=((dma->s->fragsize<<1) -1); - dma->readptr = swptr; - return 0; -} - - -static irqreturn_t rme96xx_interrupt(int irq, void *dev_id, struct pt_regs *regs) -{ - int i; - rme96xx_info *s = (rme96xx_info *)dev_id; - struct dmabuf *db; - u32 status; - unsigned long flags; - - status = readl(s->iobase + RME96xx_status_register); - if (!(status & RME96xx_IRQ)) { - return IRQ_NONE; - } - - spin_lock_irqsave(&s->lock,flags); - writel(0,s->iobase + RME96xx_irq_clear); - - s->hwbufid = (status & RME96xx_buffer_id)>>26; - if ((status & 0xffc0) <= 256) s->hwptr = 0; - for(i=0;i<devices;i++) - { - db = &(s->dma[i]); - if(db->started > 0) - wake_up(&(db->wait)); - } - spin_unlock_irqrestore(&s->lock,flags); - return IRQ_HANDLED; -} - - - -/*---------------------------------------------------------------------------- - PCI detection and module initialization stuff - ----------------------------------------------------------------------------*/ - -static void* busmaster_malloc(int size) { - int pg; /* 2 s exponent of memory size */ - char *buf; - - DBG(printk("kernel malloc pages ..\n")); - - for (pg = 0; PAGE_SIZE * (1 << pg) < size; pg++); - - buf = (char *) __get_free_pages(GFP_KERNEL | GFP_DMA, pg); - - if (buf) { - struct page* page, *last_page; - - page = virt_to_page(buf); - last_page = page + (1 << pg); - DBG(printk("setting reserved bit\n")); - while (page < last_page) { - SetPageReserved(page); - page++; - } - return buf; - } - DBG(printk("allocated %ld",(long)buf)); - return NULL; -} - -static void busmaster_free(void* ptr,int size) { - int pg; - struct page* page, *last_page; - - if (ptr == NULL) - return; - - for (pg = 0; PAGE_SIZE * (1 << pg) < size; pg++); - - page = virt_to_page(ptr); - last_page = page + (1 << pg); - while (page < last_page) { - ClearPageReserved(page); - page++; - } - DBG(printk("freeing pages\n")); - free_pages((unsigned long) ptr, pg); - DBG(printk("done\n")); -} - -/* initialize those parts of the info structure which are not pci detectable resources */ - -static int rme96xx_dmabuf_init(rme96xx_info * s,struct dmabuf* dma,int ioffset,int ooffset) { - - mutex_init(&dma->open_mutex); - init_waitqueue_head(&dma->open_wait); - init_waitqueue_head(&dma->wait); - dma->s = s; - dma->error = 0; - - dma->format = AFMT_S32_BLOCKED; - dma->formatshift = 0; - dma->inchannels = dma->outchannels = 1; - dma->inoffset = ioffset; - dma->outoffset = ooffset; - - dma->opened=0; - dma->started=0; - dma->mmapped=0; - dma->open_mode=0; - dma->mono=0; - - rme96xx_clearbufs(dma); - return 0; -} - - -static int rme96xx_init(rme96xx_info* s) -{ - int i; - int status; - unsigned short rev; - - DBG(printk("%s\n", __FUNCTION__)); - numcards++; - - s->magic = RME96xx_MAGIC; - - spin_lock_init(&s->lock); - - COMM ("setup busmaster memory") - s->recbuf = busmaster_malloc(RME96xx_DMA_MAX_SIZE_ALL); - s->playbuf = busmaster_malloc(RME96xx_DMA_MAX_SIZE_ALL); - - if (!s->recbuf || !s->playbuf) { - printk(KERN_ERR RME_MESS" Unable to allocate busmaster memory\n"); - return -ENODEV; - } - - COMM ("setting rec and playbuffers") - - writel((u32) virt_to_bus(s->recbuf),s->iobase + RME96xx_rec_buffer); - writel((u32) virt_to_bus(s->playbuf),s->iobase + RME96xx_play_buffer); - - COMM ("initializing control register") - rme96xx_unset_ctrl(s,0xffffffff); - rme96xx_set_ctrl(s,RME96xx_ctrl_init); - - - COMM ("setup devices") - for (i=0;i < devices;i++) { - struct dmabuf * dma = &s->dma[i]; - rme96xx_dmabuf_init(s,dma,2*i,2*i); - } - - /* code from ALSA card-rme9652.c HP 20020201 */ - /* Determine the h/w rev level of the card. This seems like - a particularly kludgy way to encode it, but its what RME - chose to do, so we follow them ... - */ - - status = readl(s->iobase + RME96xx_status_register); - if (rme96xx_decode_spdif_rate(status&RME96xx_F) == 1) { - s->hw_rev = 15; - } else { - s->hw_rev = 11; - } - - /* Differentiate between the standard Hammerfall, and the - "Light", which does not have the expansion board. This - method comes from information received from Mathhias - Clausen at RME. Display the EEPROM and h/w revID where - relevant. - */ - - pci_read_config_word(s->pcidev, PCI_CLASS_REVISION, &rev); - switch (rev & 0xff) { - case 8: /* original eprom */ - if (s->hw_rev == 15) { - s->card_name = "RME Digi9636 (Rev 1.5)"; - } else { - s->card_name = "RME Digi9636"; - } - break; - case 9: /* W36_G EPROM */ - s->card_name = "RME Digi9636 (Rev G)"; - break; - case 4: /* W52_G EPROM */ - s->card_name = "RME Digi9652 (Rev G)"; - break; - default: - case 3: /* original eprom */ - if (s->hw_rev == 15) { - s->card_name = "RME Digi9652 (Rev 1.5)"; - } else { - s->card_name = "RME Digi9652"; - } - break; - } - - printk(KERN_INFO RME_MESS" detected %s (hw_rev %d)\n",s->card_name,s->hw_rev); - - if (s->hw_rev == 15) - rme96xx_initialize_spdif_receiver (s); - - s->started = 0; - rme96xx_setlatency(s,7); - - printk(KERN_INFO RME_MESS" card %d initialized\n",numcards); - return 0; -} - - -/* open uses this to figure out which device was opened .. this seems to be - unnecessary complex */ - -static LIST_HEAD(devs); - -static int __devinit rme96xx_probe(struct pci_dev *pcidev, const struct pci_device_id *pciid) -{ - int i; - rme96xx_info *s; - - DBG(printk("%s\n", __FUNCTION__)); - - if (pcidev->irq == 0) - return -1; - if (!pci_dma_supported(pcidev, 0xffffffff)) { - printk(KERN_WARNING RME_MESS" architecture does not support 32bit PCI busmaster DMA\n"); - return -1; - } - if (!(s = kmalloc(sizeof(rme96xx_info), GFP_KERNEL))) { - printk(KERN_WARNING RME_MESS" out of memory\n"); - return -1; - } - memset(s, 0, sizeof(rme96xx_info)); - - s->pcidev = pcidev; - s->iobase = ioremap(pci_resource_start(pcidev, 0),RME96xx_IO_EXTENT); - s->irq = pcidev->irq; - - DBG(printk("remapped iobase: %lx irq %d\n",(long)s->iobase,s->irq)); - - if (pci_enable_device(pcidev)) - goto err_irq; - if (request_irq(s->irq, rme96xx_interrupt, IRQF_SHARED, "rme96xx", s)) { - printk(KERN_ERR RME_MESS" irq %u in use\n", s->irq); - goto err_irq; - } - - /* initialize the card */ - - i = 0; - if (rme96xx_init(s) < 0) { - printk(KERN_ERR RME_MESS" initialization failed\n"); - goto err_devices; - } - for (i=0;i<devices;i++) { - if ((s->dspnum[i] = register_sound_dsp(&rme96xx_audio_fops, -1)) < 0) - goto err_devices; - } - - if ((s->mixer = register_sound_mixer(&rme96xx_mixer_fops, -1)) < 0) - goto err_devices; - - pci_set_drvdata(pcidev, s); - pcidev->dma_mask = 0xffffffff; /* ????? */ - /* put it into driver list */ - list_add_tail(&s->devs, &devs); - - DBG(printk("initialization successful\n")); - return 0; - - /* error handler */ - err_devices: - while (i--) - unregister_sound_dsp(s->dspnum[i]); - free_irq(s->irq,s); - err_irq: - kfree(s); - return -1; -} - - -static void __devexit rme96xx_remove(struct pci_dev *dev) -{ - int i; - rme96xx_info *s = pci_get_drvdata(dev); - - if (!s) { - printk(KERN_ERR"device structure not valid\n"); - return ; - } - - if (s->started) rme96xx_startcard(s,0); - - i = devices; - while (i) { - i--; - unregister_sound_dsp(s->dspnum[i]); - } - - unregister_sound_mixer(s->mixer); - synchronize_irq(s->irq); - free_irq(s->irq,s); - busmaster_free(s->recbuf,RME96xx_DMA_MAX_SIZE_ALL); - busmaster_free(s->playbuf,RME96xx_DMA_MAX_SIZE_ALL); - kfree(s); - pci_set_drvdata(dev, NULL); -} - - -#ifndef PCI_VENDOR_ID_RME -#define PCI_VENDOR_ID_RME 0x10ee -#endif -#ifndef PCI_DEVICE_ID_RME9652 -#define PCI_DEVICE_ID_RME9652 0x3fc4 -#endif -#ifndef PCI_ANY_ID -#define PCI_ANY_ID 0 -#endif - -static struct pci_device_id id_table[] = { - { - .vendor = PCI_VENDOR_ID_RME, - .device = PCI_DEVICE_ID_RME9652, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - }, - { 0, }, -}; - -MODULE_DEVICE_TABLE(pci, id_table); - -static struct pci_driver rme96xx_driver = { - .name = "rme96xx", - .id_table = id_table, - .probe = rme96xx_probe, - .remove = __devexit_p(rme96xx_remove), -}; - -static int __init init_rme96xx(void) -{ - printk(KERN_INFO RME_MESS" version "RMEVERSION" time " __TIME__ " " __DATE__ "\n"); - devices = ((devices-1) & RME96xx_MASK_DEVS) + 1; - printk(KERN_INFO RME_MESS" reserving %d dsp device(s)\n",devices); - numcards = 0; - return pci_register_driver(&rme96xx_driver); -} - -static void __exit cleanup_rme96xx(void) -{ - printk(KERN_INFO RME_MESS" unloading\n"); - pci_unregister_driver(&rme96xx_driver); -} - -module_init(init_rme96xx); -module_exit(cleanup_rme96xx); - - - - - -/*-------------------------------------------------------------------------- - Implementation of file operations ----------------------------------------------------------------------------*/ - -#define RME96xx_FMT (AFMT_S16_LE|AFMT_U8|AFMT_S32_BLOCKED) -/* AFTM_U8 is not (yet?) supported ... HP20020201 */ - -static int rme96xx_ioctl(struct inode *in, struct file *file, unsigned int cmd, unsigned long arg) -{ - struct dmabuf * dma = (struct dmabuf *)file->private_data; - rme96xx_info *s = dma->s; - unsigned long flags; - audio_buf_info abinfo; - count_info cinfo; - int count; - int val = 0; - void __user *argp = (void __user *)arg; - int __user *p = argp; - - VALIDATE_STATE(s); - - DBG(printk("ioctl %ud\n",cmd)); - - switch (cmd) { - case OSS_GETVERSION: - return put_user(SOUND_VERSION, p); - - case SNDCTL_DSP_SYNC: -#if 0 - if (file->f_mode & FMODE_WRITE) - return drain_dac2(s, 0/*file->f_flags & O_NONBLOCK*/); -#endif - return 0; - - case SNDCTL_DSP_SETDUPLEX: - 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: -// rme96xx_clearbufs(dma); - return 0; - - case SNDCTL_DSP_SPEED: - if (get_user(val, p)) - return -EFAULT; - if (val >= 0) { -/* generally it's not a problem if we change the speed - if (dma->open_mode & (~file->f_mode) & (FMODE_READ|FMODE_WRITE)) - return -EINVAL; -*/ - spin_lock_irqsave(&s->lock, flags); - - switch (val) { - case 44100: - case 88200: - rme96xx_unset_ctrl(s,RME96xx_freq); - break; - case 48000: - case 96000: - rme96xx_set_ctrl(s,RME96xx_freq); - break; - /* just report current rate as default - e.g. use 0 to "select" current digital input rate - default: - rme96xx_unset_ctrl(s,RME96xx_freq); - val = 44100; - */ - } - if (val > 50000) - rme96xx_set_ctrl(s,RME96xx_DS); - else - rme96xx_unset_ctrl(s,RME96xx_DS); - /* set val to actual value HP 20020201 */ - /* NOTE: if not "Sync Master", reported rate might be not yet "updated" ... but I don't want to insert a long udelay() here */ - if ((s->control_register & RME96xx_Master) && !(s->control_register & RME96xx_wsel)) - val = rme96xx_get_sample_rate_ctrl(s); - else - val = rme96xx_get_sample_rate_status(s); - s->rate = val; - spin_unlock_irqrestore(&s->lock, flags); - } - DBG(printk("speed set to %d\n",val)); - return put_user(val, p); - - case SNDCTL_DSP_STEREO: /* this plays a mono file on two channels */ - if (get_user(val, p)) - return -EFAULT; - - if (!val) { - DBG(printk("setting to mono\n")); - dma->mono=1; - dma->inchannels = 1; - dma->outchannels = 1; - } - else { - DBG(printk("setting to stereo\n")); - dma->mono = 0; - dma->inchannels = 2; - dma->outchannels = 2; - } - return 0; - case SNDCTL_DSP_CHANNELS: - /* remember to check for resonable offset/channel pairs here */ - if (get_user(val, p)) - return -EFAULT; - - if (file->f_mode & FMODE_WRITE) { - if (val > 0 && (dma->outoffset + val) <= RME96xx_CHANNELS_PER_CARD) - dma->outchannels = val; - else - dma->outchannels = val = 2; - DBG(printk("setting to outchannels %d\n",val)); - } - if (file->f_mode & FMODE_READ) { - if (val > 0 && (dma->inoffset + val) <= RME96xx_CHANNELS_PER_CARD) - dma->inchannels = val; - else - dma->inchannels = val = 2; - DBG(printk("setting to inchannels %d\n",val)); - } - - dma->mono=0; - - return put_user(val, p); - - case SNDCTL_DSP_GETFMTS: /* Returns a mask */ - return put_user(RME96xx_FMT, p); - - case SNDCTL_DSP_SETFMT: /* Selects ONE fmt*/ - DBG(printk("setting to format %x\n",val)); - if (get_user(val, p)) - return -EFAULT; - if (val != AFMT_QUERY) { - if (val & RME96xx_FMT) - dma->format = val; - switch (dma->format) { - case AFMT_S16_LE: - dma->formatshift=1; - break; - case AFMT_S32_BLOCKED: - dma->formatshift=0; - break; - } - } - return put_user(dma->format, p); - - case SNDCTL_DSP_POST: - return 0; - - case SNDCTL_DSP_GETTRIGGER: - val = 0; -#if 0 - if (file->f_mode & FMODE_READ && s->ctrl & CTRL_ADC_EN) - val |= PCM_ENABLE_INPUT; - if (file->f_mode & FMODE_WRITE && s->ctrl & CTRL_DAC2_EN) - val |= PCM_ENABLE_OUTPUT; -#endif - return put_user(val, p); - - case SNDCTL_DSP_SETTRIGGER: - if (get_user(val, p)) - return -EFAULT; -#if 0 - if (file->f_mode & FMODE_READ) { - if (val & PCM_ENABLE_INPUT) { - if (!s->dma_adc.ready && (ret = prog_dmabuf_adc(s))) - return ret; - start_adc(s); - } else - stop_adc(s); - } - if (file->f_mode & FMODE_WRITE) { - if (val & PCM_ENABLE_OUTPUT) { - if (!s->dma_dac2.ready && (ret = prog_dmabuf_dac2(s))) - return ret; - start_dac2(s); - } else - stop_dac2(s); - } -#endif - return 0; - - case SNDCTL_DSP_GETOSPACE: - if (!(file->f_mode & FMODE_WRITE)) - return -EINVAL; - - val = rme96xx_gethwptr(dma->s,0); - - - count = rme96xx_getospace(dma,val); - if (!s->started) count = s->fragsize*2; - abinfo.fragsize =(s->fragsize*dma->outchannels)>>dma->formatshift; - abinfo.bytes = (count*dma->outchannels)>>dma->formatshift; - abinfo.fragstotal = 2; - abinfo.fragments = (count > s->fragsize); - - return copy_to_user(argp, &abinfo, sizeof(abinfo)) ? -EFAULT : 0; - - case SNDCTL_DSP_GETISPACE: - if (!(file->f_mode & FMODE_READ)) - return -EINVAL; - - val = rme96xx_gethwptr(dma->s,0); - - count = rme96xx_getispace(dma,val); - - abinfo.fragsize = (s->fragsize*dma->inchannels)>>dma->formatshift; - abinfo.bytes = (count*dma->inchannels)>>dma->formatshift; - abinfo.fragstotal = 2; - abinfo.fragments = count > s->fragsize; - 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: /* What should this exactly do ? , - ATM it is just abinfo.bytes */ - if (!(file->f_mode & FMODE_WRITE)) - return -EINVAL; - - val = rme96xx_gethwptr(dma->s,0); - count = val - dma->readptr; - if (count < 0) - count += s->fragsize<<1; - - return put_user(count, p); - - -/* check out how to use mmaped mode (can only be blocked !!!) */ - case SNDCTL_DSP_GETIPTR: - if (!(file->f_mode & FMODE_READ)) - return -EINVAL; - val = rme96xx_gethwptr(dma->s,0); - spin_lock_irqsave(&s->lock,flags); - cinfo.bytes = s->fragsize<<1; - count = val - dma->readptr; - if (count < 0) - count += s->fragsize<<1; - - cinfo.blocks = (count > s->fragsize); - cinfo.ptr = val; - if (dma->mmapped) - dma->readptr &= s->fragsize<<1; - spin_unlock_irqrestore(&s->lock,flags); - - if (copy_to_user(argp, &cinfo, sizeof(cinfo))) - return -EFAULT; - return 0; - - case SNDCTL_DSP_GETOPTR: - if (!(file->f_mode & FMODE_READ)) - return -EINVAL; - val = rme96xx_gethwptr(dma->s,0); - spin_lock_irqsave(&s->lock,flags); - cinfo.bytes = s->fragsize<<1; - count = val - dma->writeptr; - if (count < 0) - count += s->fragsize<<1; - - cinfo.blocks = (count > s->fragsize); - cinfo.ptr = val; - if (dma->mmapped) - dma->writeptr &= s->fragsize<<1; - spin_unlock_irqrestore(&s->lock,flags); - if (copy_to_user(argp, &cinfo, sizeof(cinfo))) - return -EFAULT; - return 0; - case SNDCTL_DSP_GETBLKSIZE: - return put_user(s->fragsize, p); - - case SNDCTL_DSP_SETFRAGMENT: - if (get_user(val, p)) - return -EFAULT; - val&=0xffff; - val -= 7; - if (val < 0) val = 0; - if (val > 7) val = 7; - rme96xx_setlatency(s,val); - return 0; - - case SNDCTL_DSP_SUBDIVIDE: -#if 0 - if ((file->f_mode & FMODE_READ && s->dma_adc.subdivision) || - (file->f_mode & FMODE_WRITE && s->dma_dac2.subdivision)) - return -EINVAL; - if (get_user(val, p)) - return -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_dac2.subdivision = val; -#endif - return 0; - - case SOUND_PCM_READ_RATE: - /* HP20020201 */ - s->rate = rme96xx_get_sample_rate_status(s); - return put_user(s->rate, p); - - case SOUND_PCM_READ_CHANNELS: - return put_user(dma->outchannels, p); - - case SOUND_PCM_READ_BITS: - switch (dma->format) { - case AFMT_S32_BLOCKED: - val = 32; - break; - case AFMT_S16_LE: - val = 16; - break; - } - return put_user(val, p); - - case SOUND_PCM_WRITE_FILTER: - case SNDCTL_DSP_SETSYNCRO: - case SOUND_PCM_READ_FILTER: - return -EINVAL; - - } - - - return -ENODEV; -} - - - -static int rme96xx_open(struct inode *in, struct file *f) -{ - int minor = iminor(in); - struct list_head *list; - int devnum; - rme96xx_info *s; - struct dmabuf* dma; - DECLARE_WAITQUEUE(wait, current); - - DBG(printk("device num %d open\n",devnum)); - - nonseekable_open(in, f); - for (list = devs.next; ; list = list->next) { - if (list == &devs) - return -ENODEV; - s = list_entry(list, rme96xx_info, devs); - for (devnum=0; devnum<devices; devnum++) - if (!((s->dspnum[devnum] ^ minor) & ~0xf)) - break; - if (devnum<devices) - break; - } - VALIDATE_STATE(s); - - dma = &s->dma[devnum]; - f->private_data = dma; - /* wait for device to become free */ - mutex_lock(&dma->open_mutex); - while (dma->open_mode & f->f_mode) { - if (f->f_flags & O_NONBLOCK) { - mutex_unlock(&dma->open_mutex); - return -EBUSY; - } - add_wait_queue(&dma->open_wait, &wait); - __set_current_state(TASK_INTERRUPTIBLE); - mutex_unlock(&dma->open_mutex); - schedule(); - remove_wait_queue(&dma->open_wait, &wait); - set_current_state(TASK_RUNNING); - if (signal_pending(current)) - return -ERESTARTSYS; - mutex_lock(&dma->open_mutex); - } - - COMM ("hardware open") - - if (!dma->opened) rme96xx_dmabuf_init(dma->s,dma,dma->inoffset,dma->outoffset); - - dma->open_mode |= (f->f_mode & (FMODE_READ | FMODE_WRITE)); - dma->opened = 1; - mutex_unlock(&dma->open_mutex); - - DBG(printk("device num %d open finished\n",devnum)); - return 0; -} - -static int rme96xx_release(struct inode *in, struct file *file) -{ - struct dmabuf * dma = (struct dmabuf*) file->private_data; - /* int hwp; ... was unused HP20020201 */ - DBG(printk("%s\n", __FUNCTION__)); - - COMM ("draining") - if (dma->open_mode & FMODE_WRITE) { -#if 0 /* Why doesn't this work with some cards ?? */ - hwp = rme96xx_gethwptr(dma->s,0); - while (rme96xx_getospace(dma,hwp)) { - interruptible_sleep_on(&(dma->wait)); - hwp = rme96xx_gethwptr(dma->s,0); - } -#endif - rme96xx_clearbufs(dma); - } - - dma->open_mode &= (~file->f_mode) & (FMODE_READ|FMODE_WRITE); - - if (!(dma->open_mode & (FMODE_READ|FMODE_WRITE))) { - dma->opened = 0; - if (dma->s->started) rme96xx_startcard(dma->s,1); - } - - wake_up(&dma->open_wait); - mutex_unlock(&dma->open_mutex); - - return 0; -} - - -static ssize_t rme96xx_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos) -{ - struct dmabuf *dma = (struct dmabuf *)file->private_data; - ssize_t ret = 0; - int cnt; /* number of bytes from "buffer" that will/can be used */ - int hop = count/dma->outchannels; - int hwp; - int exact = (file->f_flags & O_NONBLOCK); - - - if(dma == NULL || (dma->s) == NULL) - return -ENXIO; - - if (dma->mmapped || !dma->opened) - return -ENXIO; - - if (!access_ok(VERIFY_READ, buffer, count)) - return -EFAULT; - - if (! (dma->open_mode & FMODE_WRITE)) - return -ENXIO; - - if (!dma->s->started) rme96xx_startcard(dma->s,exact); - hwp = rme96xx_gethwptr(dma->s,0); - - if(!(dma->started)){ - COMM ("first write") - - dma->readptr = hwp; - dma->writeptr = hwp; - dma->started = 1; - } - - while (count > 0) { - cnt = rme96xx_getospace(dma,hwp); - cnt>>=dma->formatshift; - cnt*=dma->outchannels; - if (cnt > count) - cnt = count; - - if (cnt != 0) { - if (rme96xx_copyfromuser(dma,buffer,cnt,hop)) - return ret ? ret : -EFAULT; - count -= cnt; - buffer += cnt; - ret += cnt; - if (count == 0) return ret; - } - if (file->f_flags & O_NONBLOCK) - return ret ? ret : -EAGAIN; - - if ((hwp - dma->writeptr) <= 0) { - interruptible_sleep_on(&(dma->wait)); - - if (signal_pending(current)) - return ret ? ret : -ERESTARTSYS; - } - - hwp = rme96xx_gethwptr(dma->s,exact); - - }; /* count > 0 */ - - return ret; -} - -static ssize_t rme96xx_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos) -{ - struct dmabuf *dma = (struct dmabuf *)file->private_data; - ssize_t ret = 0; - int cnt; /* number of bytes from "buffer" that will/can be used */ - int hop = count/dma->inchannels; - int hwp; - int exact = (file->f_flags & O_NONBLOCK); - - - if(dma == NULL || (dma->s) == NULL) - return -ENXIO; - - if (dma->mmapped || !dma->opened) - return -ENXIO; - - if (!access_ok(VERIFY_WRITE, buffer, count)) - return -EFAULT; - - if (! (dma->open_mode & FMODE_READ)) - return -ENXIO; - - if (!dma->s->started) rme96xx_startcard(dma->s,exact); - hwp = rme96xx_gethwptr(dma->s,0); - - if(!(dma->started)){ - COMM ("first read") - - dma->writeptr = hwp; - dma->readptr = hwp; - dma->started = 1; - } - - while (count > 0) { - cnt = rme96xx_getispace(dma,hwp); - cnt>>=dma->formatshift; - cnt*=dma->inchannels; - - if (cnt > count) - cnt = count; - - if (cnt != 0) { - - if (rme96xx_copytouser(dma,buffer,cnt,hop)) - return ret ? ret : -EFAULT; - - count -= cnt; - buffer += cnt; - ret += cnt; - if (count == 0) return ret; - } - if (file->f_flags & O_NONBLOCK) - return ret ? ret : -EAGAIN; - - if ((hwp - dma->readptr) <= 0) { - interruptible_sleep_on(&(dma->wait)); - - if (signal_pending(current)) - return ret ? ret : -ERESTARTSYS; - } - hwp = rme96xx_gethwptr(dma->s,exact); - - }; /* count > 0 */ - - return ret; -} - -static int rm96xx_mmap(struct file *file, struct vm_area_struct *vma) { - struct dmabuf *dma = (struct dmabuf *)file->private_data; - rme96xx_info* s = dma->s; - unsigned long size; - - VALIDATE_STATE(s); - lock_kernel(); - - if (vma->vm_pgoff != 0) { - unlock_kernel(); - return -EINVAL; - } - size = vma->vm_end - vma->vm_start; - if (size > RME96xx_DMA_MAX_SIZE) { - unlock_kernel(); - return -EINVAL; - } - - - if (vma->vm_flags & VM_WRITE) { - if (!s->started) rme96xx_startcard(s,1); - - if (remap_pfn_range(vma, vma->vm_start, virt_to_phys(s->playbuf + dma->outoffset*RME96xx_DMA_MAX_SIZE) >> PAGE_SHIFT, size, vma->vm_page_prot)) { - unlock_kernel(); - return -EAGAIN; - } - } - else if (vma->vm_flags & VM_READ) { - if (!s->started) rme96xx_startcard(s,1); - if (remap_pfn_range(vma, vma->vm_start, virt_to_phys(s->playbuf + dma->inoffset*RME96xx_DMA_MAX_SIZE) >> PAGE_SHIFT, size, vma->vm_page_prot)) { - unlock_kernel(); - return -EAGAIN; - } - } else { - unlock_kernel(); - return -EINVAL; - } - - -/* this is the mapping */ - vma->vm_flags &= ~VM_IO; - dma->mmapped = 1; - unlock_kernel(); - return 0; -} - -static unsigned int rme96xx_poll(struct file *file, struct poll_table_struct *wait) -{ - struct dmabuf *dma = (struct dmabuf *)file->private_data; - rme96xx_info* s = dma->s; - unsigned int mask = 0; - unsigned int hwp,cnt; - - DBG(printk("rme96xx poll_wait ...\n")); - VALIDATE_STATE(s); - - if (!s->started) { - mask |= POLLOUT | POLLWRNORM; - } - poll_wait(file, &dma->wait, wait); - - hwp = rme96xx_gethwptr(dma->s,0); - - DBG(printk("rme96xx poll: ..cnt %d > %d\n",cnt,s->fragsize)); - - cnt = rme96xx_getispace(dma,hwp); - - if (file->f_mode & FMODE_READ) - if (cnt > 0) - mask |= POLLIN | POLLRDNORM; - - - - cnt = rme96xx_getospace(dma,hwp); - - if (file->f_mode & FMODE_WRITE) - if (cnt > 0) - mask |= POLLOUT | POLLWRNORM; - - -// printk("rme96xx poll_wait ...%d > %d\n",rme96xx_getospace(dma,hwp),rme96xx_getispace(dma,hwp)); - - return mask; -} - - -static struct file_operations rme96xx_audio_fops = { - .owner = THIS_MODULE, - .read = rme96xx_read, - .write = rme96xx_write, - .poll = rme96xx_poll, - .ioctl = rme96xx_ioctl, - .mmap = rm96xx_mmap, - .open = rme96xx_open, - .release = rme96xx_release -}; - -static int rme96xx_mixer_open(struct inode *inode, struct file *file) -{ - int minor = iminor(inode); - struct list_head *list; - rme96xx_info *s; - - COMM ("mixer open"); - - nonseekable_open(inode, file); - for (list = devs.next; ; list = list->next) { - if (list == &devs) - return -ENODEV; - s = list_entry(list, rme96xx_info, devs); - if (s->mixer== minor) - break; - } - VALIDATE_STATE(s); - file->private_data = s; - - COMM ("mixer opened") - return 0; -} - -static int rme96xx_mixer_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) -{ - rme96xx_info *s = (rme96xx_info *)file->private_data; - u32 status; - int spdifrate; - void __user *argp = (void __user *)arg; - int __user *p = argp; - - status = readl(s->iobase + RME96xx_status_register); - /* hack to convert rev 1.5 SPDIF rate to "crystalrate" format HP 20020201 */ - rme96xx_spdif_sample_rate(s,&spdifrate); - status = (status & ~RME96xx_F) | ((spdifrate<<22) & RME96xx_F); - - VALIDATE_STATE(s); - if (cmd == SOUND_MIXER_PRIVATE1) { - rme_mixer mixer; - if (copy_from_user(&mixer,argp,sizeof(mixer))) - return -EFAULT; - - mixer.devnr &= RME96xx_MASK_DEVS; - if (mixer.devnr >= devices) - mixer.devnr = devices-1; - if (file->f_mode & FMODE_WRITE && !s->dma[mixer.devnr].opened) { - /* modify only if device not open */ - if (mixer.o_offset < 0) - mixer.o_offset = 0; - if (mixer.o_offset >= RME96xx_CHANNELS_PER_CARD) - mixer.o_offset = RME96xx_CHANNELS_PER_CARD-1; - if (mixer.i_offset < 0) - mixer.i_offset = 0; - if (mixer.i_offset >= RME96xx_CHANNELS_PER_CARD) - mixer.i_offset = RME96xx_CHANNELS_PER_CARD-1; - s->dma[mixer.devnr].outoffset = mixer.o_offset; - s->dma[mixer.devnr].inoffset = mixer.i_offset; - } - - mixer.o_offset = s->dma[mixer.devnr].outoffset; - mixer.i_offset = s->dma[mixer.devnr].inoffset; - - return copy_to_user(argp, &mixer, sizeof(mixer)) ? -EFAULT : 0; - } - if (cmd == SOUND_MIXER_PRIVATE2) { - return put_user(status, p); - } - if (cmd == SOUND_MIXER_PRIVATE3) { - u32 control; - if (copy_from_user(&control,argp,sizeof(control))) - return -EFAULT; - if (file->f_mode & FMODE_WRITE) { - s->control_register &= ~RME96xx_mixer_allowed; - s->control_register |= control & RME96xx_mixer_allowed; - writel(control,s->iobase + RME96xx_control_register); - } - - return put_user(s->control_register, p); - } - return -1; -} - - - -static int rme96xx_mixer_release(struct inode *inode, struct file *file) -{ - return 0; -} - -static /*const*/ struct file_operations rme96xx_mixer_fops = { - .owner = THIS_MODULE, - .ioctl = rme96xx_mixer_ioctl, - .open = rme96xx_mixer_open, - .release = rme96xx_mixer_release, -}; |
