+++ /dev/null
-/* (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,
-};
git.openpandora.org / pandora-kernel.git / blobdiff