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1861 lines
49 KiB
1861 lines
49 KiB
/* (C) 2000 Guenter Geiger <geiger@debian.org>
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with copy/pastes from the driver of Winfried Ritsch <ritsch@iem.kug.ac.at>
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based on es1370.c
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* 10 Jan 2001: 0.1 initial version
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* 19 Jan 2001: 0.2 fixed bug in select()
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* 27 Apr 2001: 0.3 more than one card usable
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* 11 May 2001: 0.4 fixed for SMP, included into kernel source tree
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* 17 May 2001: 0.5 draining code didn't work on new cards
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* 18 May 2001: 0.6 remove synchronize_irq() call
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* 17 Jul 2001: 0.7 updated xrmectrl to make it work for newer cards
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* 2 feb 2002: 0.8 fixed pci device handling, see below for patches from Heiko (Thanks!)
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Marcus Meissner <Marcus.Meissner@caldera.de>
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Modifications - Heiko Purnhagen <purnhage@tnt.uni-hannover.de>
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HP20020108 fixed handling of "large" read()
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HP20020116 towards REV 1.5 support, based on ALSA's card-rme9652.c
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HP20020118 made mixer ioctl and handling of devices>1 more safe
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HP20020201 fixed handling of "large" read() properly
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added REV 1.5 S/P-DIF receiver support
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SNDCTL_DSP_SPEED now returns the actual speed
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* 10 Aug 2002: added synchronize_irq() again
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TODO:
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- test more than one card --- done
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- check for pci IOREGION (see es1370) in rme96xx_probe ??
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- error detection
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- mmap interface
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- mixer mmap interface
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- mixer ioctl
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- get rid of noise upon first open (why ??)
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- allow multiple open (at least for read)
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- allow multiple open for non overlapping regions
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- recheck the multiple devices part (offsets of different devices, etc)
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- do decent draining in _release --- done
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- SMP support
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- what about using fragstotal>2 for small fragsize? (HP20020118)
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- add support for AFMT_S32_LE
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*/
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#ifndef RMEVERSION
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#define RMEVERSION "0.8"
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#endif
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#include <linux/version.h>
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#include <linux/module.h>
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#include <linux/string.h>
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#include <linux/sched.h>
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#include <linux/sound.h>
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#include <linux/soundcard.h>
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#include <linux/pci.h>
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#include <linux/smp_lock.h>
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#include <linux/delay.h>
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#include <linux/slab.h>
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#include <linux/interrupt.h>
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#include <linux/init.h>
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#include <linux/interrupt.h>
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#include <linux/poll.h>
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#include <linux/wait.h>
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#include <asm/dma.h>
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#include <asm/page.h>
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#include "rme96xx.h"
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#define NR_DEVICE 2
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static int devices = 1;
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module_param(devices, int, 0);
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MODULE_PARM_DESC(devices, "number of dsp devices allocated by the driver");
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MODULE_AUTHOR("Guenter Geiger, geiger@debian.org");
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MODULE_DESCRIPTION("RME9652/36 \"Hammerfall\" Driver");
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MODULE_LICENSE("GPL");
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#ifdef DEBUG
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#define DBG(x) printk("RME_DEBUG:");x
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#define COMM(x) printk("RME_COMM: " x "\n");
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#else
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#define DBG(x) while (0) {}
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#define COMM(x)
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#endif
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/*--------------------------------------------------------------------------
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Preporcessor Macros and Definitions
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--------------------------------------------------------------------------*/
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#define RME96xx_MAGIC 0x6473
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/* Registers-Space in offsets from base address with 16MByte size */
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#define RME96xx_IO_EXTENT 16l*1024l*1024l
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#define RME96xx_CHANNELS_PER_CARD 26
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/* Write - Register */
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/* 0,4,8,12,16,20,24,28 ... hardware init (erasing fifo-pointer intern) */
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#define RME96xx_num_of_init_regs 8
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#define RME96xx_init_buffer (0/4)
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#define RME96xx_play_buffer (32/4) /* pointer to 26x64kBit RAM from mainboard */
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#define RME96xx_rec_buffer (36/4) /* pointer to 26x64kBit RAM from mainboard */
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#define RME96xx_control_register (64/4) /* exact meaning see below */
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#define RME96xx_irq_clear (96/4) /* irq acknowledge */
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#define RME96xx_time_code (100/4) /* if used with alesis adat */
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#define RME96xx_thru_base (128/4) /* 132...228 Thru for 26 channels */
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#define RME96xx_thru_channels RME96xx_CHANNELS_PER_CARD
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/* Read Register */
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#define RME96xx_status_register 0 /* meaning see below */
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/* Status Register: */
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/* ------------------------------------------------------------------------ */
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#define RME96xx_IRQ 0x0000001 /* IRQ is High if not reset by RMExx_irq_clear */
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#define RME96xx_lock_2 0x0000002 /* ADAT 3-PLL: 1=locked, 0=unlocked */
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#define RME96xx_lock_1 0x0000004 /* ADAT 2-PLL: 1=locked, 0=unlocked */
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#define RME96xx_lock_0 0x0000008 /* ADAT 1-PLL: 1=locked, 0=unlocked */
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#define RME96xx_fs48 0x0000010 /* sample rate 0 ...44.1/88.2, 1 ... 48/96 Khz */
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#define RME96xx_wsel_rd 0x0000020 /* if Word-Clock is used and valid then 1 */
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#define RME96xx_buf_pos1 0x0000040 /* Bit 6..15 : Position of buffer-pointer in 64Bytes-blocks */
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#define RME96xx_buf_pos2 0x0000080 /* resolution +/- 1 64Byte/block (since 64Bytes bursts) */
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#define RME96xx_buf_pos3 0x0000100 /* 10 bits = 1024 values */
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#define RME96xx_buf_pos4 0x0000200 /* if we mask off the first 6 bits, we can take the status */
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#define RME96xx_buf_pos5 0x0000400 /* register as sample counter in the hardware buffer */
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#define RME96xx_buf_pos6 0x0000800
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#define RME96xx_buf_pos7 0x0001000
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#define RME96xx_buf_pos8 0x0002000
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#define RME96xx_buf_pos9 0x0004000
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#define RME96xx_buf_pos10 0x0008000
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#define RME96xx_sync_2 0x0010000 /* if ADAT-IN3 synced to system clock */
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#define RME96xx_sync_1 0x0020000 /* if ADAT-IN2 synced to system clock */
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#define RME96xx_sync_0 0x0040000 /* if ADAT-IN1 synced to system clock */
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#define RME96xx_DS_rd 0x0080000 /* 1=Double Speed, 0=Normal Speed */
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#define RME96xx_tc_busy 0x0100000 /* 1=time-code copy in progress (960ms) */
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#define RME96xx_tc_out 0x0200000 /* time-code out bit */
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#define RME96xx_F_0 0x0400000 /* 000=64kHz, 100=88.2kHz, 011=96kHz */
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#define RME96xx_F_1 0x0800000 /* 111=32kHz, 110=44.1kHz, 101=48kHz, */
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#define RME96xx_F_2 0x1000000 /* 001=Rev 1.5+ external Crystal Chip */
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#define RME96xx_ERF 0x2000000 /* Error-Flag of SDPIF Receiver (1=No Lock)*/
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#define RME96xx_buffer_id 0x4000000 /* toggles by each interrupt on rec/play */
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#define RME96xx_tc_valid 0x8000000 /* 1 = a signal is detected on time-code input */
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#define RME96xx_SPDIF_READ 0x10000000 /* byte available from Rev 1.5+ SPDIF interface */
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/* Status Register Fields */
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#define RME96xx_lock (RME96xx_lock_0|RME96xx_lock_1|RME96xx_lock_2)
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#define RME96xx_sync (RME96xx_sync_0|RME96xx_sync_1|RME96xx_sync_2)
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#define RME96xx_F (RME96xx_F_0|RME96xx_F_1|RME96xx_F_2)
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#define rme96xx_decode_spdif_rate(x) ((x)>>22)
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/* Bit 6..15 : h/w buffer pointer */
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#define RME96xx_buf_pos 0x000FFC0
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/* Bits 31,30,29 are bits 5,4,3 of h/w pointer position on later
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Rev G EEPROMS and Rev 1.5 cards or later.
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*/
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#define RME96xx_REV15_buf_pos(x) ((((x)&0xE0000000)>>26)|((x)&RME96xx_buf_pos))
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/* Control-Register: */
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/*--------------------------------------------------------------------------------*/
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#define RME96xx_start_bit 0x0001 /* start record/play */
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#define RME96xx_latency0 0x0002 /* Buffer size / latency */
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#define RME96xx_latency1 0x0004 /* buffersize = 512Bytes * 2^n */
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#define RME96xx_latency2 0x0008 /* 0=64samples ... 7=8192samples */
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#define RME96xx_Master 0x0010 /* Clock Mode 1=Master, 0=Slave/Auto */
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#define RME96xx_IE 0x0020 /* Interupt Enable */
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#define RME96xx_freq 0x0040 /* samplerate 0=44.1/88.2, 1=48/96 kHz*/
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#define RME96xx_freq1 0x0080 /* samplerate 0=32 kHz, 1=other rates ??? (from ALSA, but may be wrong) */
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#define RME96xx_DS 0x0100 /* double speed 0=44.1/48, 1=88.2/96 Khz */
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#define RME96xx_PRO 0x0200 /* SPDIF-OUT 0=consumer, 1=professional */
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#define RME96xx_EMP 0x0400 /* SPDIF-OUT emphasis 0=off, 1=on */
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#define RME96xx_Dolby 0x0800 /* SPDIF-OUT non-audio bit 1=set, 0=unset */
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#define RME96xx_opt_out 0x1000 /* use 1st optical OUT as SPDIF: 1=yes, 0=no */
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#define RME96xx_wsel 0x2000 /* use Wordclock as sync (overwrites master) */
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#define RME96xx_inp_0 0x4000 /* SPDIF-IN 00=optical (ADAT1), */
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#define RME96xx_inp_1 0x8000 /* 01=coaxial (Cinch), 10=internal CDROM */
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#define RME96xx_SyncRef0 0x10000 /* preferred sync-source in autosync */
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#define RME96xx_SyncRef1 0x20000 /* 00=ADAT1, 01=ADAT2, 10=ADAT3, 11=SPDIF */
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#define RME96xx_SPDIF_RESET (1<<18) /* Rev 1.5+: h/w SPDIF receiver */
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#define RME96xx_SPDIF_SELECT (1<<19)
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#define RME96xx_SPDIF_CLOCK (1<<20)
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#define RME96xx_SPDIF_WRITE (1<<21)
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#define RME96xx_ADAT1_INTERNAL (1<<22) /* Rev 1.5+: if set, internal CD connector carries ADAT */
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#define RME96xx_ctrl_init (RME96xx_latency0 |\
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RME96xx_Master |\
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RME96xx_inp_1)
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/* Control register fields and shortcuts */
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#define RME96xx_latency (RME96xx_latency0|RME96xx_latency1|RME96xx_latency2)
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#define RME96xx_inp (RME96xx_inp_0|RME96xx_inp_1)
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#define RME96xx_SyncRef (RME96xx_SyncRef0|RME96xx_SyncRef1)
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#define RME96xx_mixer_allowed (RME96xx_Master|RME96xx_PRO|RME96xx_EMP|RME96xx_Dolby|RME96xx_opt_out|RME96xx_wsel|RME96xx_inp|RME96xx_SyncRef|RME96xx_ADAT1_INTERNAL)
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/* latency = 512Bytes * 2^n, where n is made from Bit3 ... Bit1 (??? HP20020201) */
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#define RME96xx_SET_LATENCY(x) (((x)&0x7)<<1)
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#define RME96xx_GET_LATENCY(x) (((x)>>1)&0x7)
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#define RME96xx_SET_inp(x) (((x)&0x3)<<14)
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#define RME96xx_GET_inp(x) (((x)>>14)&0x3)
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#define RME96xx_SET_SyncRef(x) (((x)&0x3)<<17)
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#define RME96xx_GET_SyncRef(x) (((x)>>17)&0x3)
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/* buffer sizes */
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#define RME96xx_BYTES_PER_SAMPLE 4 /* sizeof(u32) */
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#define RME_16K 16*1024
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#define RME96xx_DMA_MAX_SAMPLES (RME_16K)
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#define RME96xx_DMA_MAX_SIZE (RME_16K * RME96xx_BYTES_PER_SAMPLE)
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#define RME96xx_DMA_MAX_SIZE_ALL (RME96xx_DMA_MAX_SIZE * RME96xx_CHANNELS_PER_CARD)
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#define RME96xx_NUM_OF_FRAGMENTS 2
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#define RME96xx_FRAGMENT_MAX_SIZE (RME96xx_DMA_MAX_SIZE/2)
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#define RME96xx_FRAGMENT_MAX_SAMPLES (RME96xx_DMA_MAX_SAMPLES/2)
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#define RME96xx_MAX_LATENCY 7 /* 16k samples */
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#define RME96xx_MAX_DEVS 4 /* we provide some OSS stereodevs */
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#define RME96xx_MASK_DEVS 0x3 /* RME96xx_MAX_DEVS-1 */
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#define RME_MESS "rme96xx:"
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/*------------------------------------------------------------------------
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Types, struct and function declarations
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------------------------------------------------------------------------*/
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/* --------------------------------------------------------------------- */
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static const char invalid_magic[] = KERN_CRIT RME_MESS" invalid magic value\n";
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#define VALIDATE_STATE(s) \
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({ \
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if (!(s) || (s)->magic != RME96xx_MAGIC) { \
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printk(invalid_magic); \
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return -ENXIO; \
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} \
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})
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/* --------------------------------------------------------------------- */
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static struct file_operations rme96xx_audio_fops;
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static struct file_operations rme96xx_mixer_fops;
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static int numcards;
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typedef int32_t raw_sample_t;
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typedef struct _rme96xx_info {
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/* hardware settings */
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int magic;
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struct pci_dev * pcidev; /* pci_dev structure */
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unsigned long __iomem *iobase;
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unsigned int irq;
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/* list of rme96xx devices */
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struct list_head devs;
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spinlock_t lock;
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u32 *recbuf; /* memory for rec buffer */
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u32 *playbuf; /* memory for play buffer */
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u32 control_register;
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u32 thru_bits; /* thru 1=on, 0=off channel 1=Bit1... channel 26= Bit26 */
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int hw_rev; /* h/w rev * 10 (i.e. 1.5 has hw_rev = 15) */
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char *card_name; /* hammerfall or hammerfall light names */
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int open_count; /* unused ??? HP20020201 */
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int rate;
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int latency;
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unsigned int fragsize;
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int started;
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int hwptr; /* can be negativ because of pci burst offset */
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unsigned int hwbufid; /* set by interrupt, buffer which is written/read now */
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struct dmabuf {
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unsigned int format;
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int formatshift;
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int inchannels; /* number of channels for device */
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int outchannels; /* number of channels for device */
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int mono; /* if true, we play mono on 2 channels */
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int inoffset; /* which channel is considered the first one */
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int outoffset;
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/* state */
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int opened; /* open() made */
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int started; /* first write/read */
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int mmapped; /* mmap */
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int open_mode;
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struct _rme96xx_info *s;
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/* pointer to read/write position in buffer */
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unsigned readptr;
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unsigned writeptr;
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unsigned error; /* over/underruns cleared on sync again */
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/* waiting and locking */
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wait_queue_head_t wait;
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struct semaphore open_sem;
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wait_queue_head_t open_wait;
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} dma[RME96xx_MAX_DEVS];
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int dspnum[RME96xx_MAX_DEVS]; /* register with sound subsystem */
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int mixer; /* register with sound subsystem */
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} rme96xx_info;
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/* fiddling with the card (first level hardware control) */
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static inline void rme96xx_set_ctrl(rme96xx_info* s,int mask)
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{
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s->control_register|=mask;
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writel(s->control_register,s->iobase + RME96xx_control_register);
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}
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static inline void rme96xx_unset_ctrl(rme96xx_info* s,int mask)
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{
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s->control_register&=(~mask);
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writel(s->control_register,s->iobase + RME96xx_control_register);
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}
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static inline int rme96xx_get_sample_rate_status(rme96xx_info* s)
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{
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int val;
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u32 status;
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status = readl(s->iobase + RME96xx_status_register);
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val = (status & RME96xx_fs48) ? 48000 : 44100;
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if (status & RME96xx_DS_rd)
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val *= 2;
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return val;
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}
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static inline int rme96xx_get_sample_rate_ctrl(rme96xx_info* s)
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{
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int val;
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val = (s->control_register & RME96xx_freq) ? 48000 : 44100;
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if (s->control_register & RME96xx_DS)
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val *= 2;
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return val;
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}
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/* code from ALSA card-rme9652.c for rev 1.5 SPDIF receiver HP 20020201 */
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static void rme96xx_spdif_set_bit (rme96xx_info* s, int mask, int onoff)
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{
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if (onoff)
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s->control_register |= mask;
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else
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s->control_register &= ~mask;
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writel(s->control_register,s->iobase + RME96xx_control_register);
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}
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static void rme96xx_spdif_write_byte (rme96xx_info* s, const int val)
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{
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long mask;
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long i;
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for (i = 0, mask = 0x80; i < 8; i++, mask >>= 1) {
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if (val & mask)
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rme96xx_spdif_set_bit (s, RME96xx_SPDIF_WRITE, 1);
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else
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rme96xx_spdif_set_bit (s, RME96xx_SPDIF_WRITE, 0);
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rme96xx_spdif_set_bit (s, RME96xx_SPDIF_CLOCK, 1);
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rme96xx_spdif_set_bit (s, RME96xx_SPDIF_CLOCK, 0);
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}
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}
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static int rme96xx_spdif_read_byte (rme96xx_info* s)
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{
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long mask;
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long val;
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long i;
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val = 0;
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for (i = 0, mask = 0x80; i < 8; i++, mask >>= 1) {
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rme96xx_spdif_set_bit (s, RME96xx_SPDIF_CLOCK, 1);
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if (readl(s->iobase + RME96xx_status_register) & RME96xx_SPDIF_READ)
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val |= mask;
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rme96xx_spdif_set_bit (s, RME96xx_SPDIF_CLOCK, 0);
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}
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return val;
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}
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static void rme96xx_write_spdif_codec (rme96xx_info* s, const int address, const int data)
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{
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rme96xx_spdif_set_bit (s, RME96xx_SPDIF_SELECT, 1);
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rme96xx_spdif_write_byte (s, 0x20);
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rme96xx_spdif_write_byte (s, address);
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|
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) {
|
|
|
|
init_MUTEX(&dma->open_sem);
|
|
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, SA_SHIRQ, "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_module_init(&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 */
|
|
down(&dma->open_sem);
|
|
while (dma->open_mode & f->f_mode) {
|
|
if (f->f_flags & O_NONBLOCK) {
|
|
up(&dma->open_sem);
|
|
return -EBUSY;
|
|
}
|
|
add_wait_queue(&dma->open_wait, &wait);
|
|
__set_current_state(TASK_INTERRUPTIBLE);
|
|
up(&dma->open_sem);
|
|
schedule();
|
|
remove_wait_queue(&dma->open_wait, &wait);
|
|
set_current_state(TASK_RUNNING);
|
|
if (signal_pending(current))
|
|
return -ERESTARTSYS;
|
|
down(&dma->open_sem);
|
|
}
|
|
|
|
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;
|
|
up(&dma->open_sem);
|
|
|
|
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);
|
|
up(&dma->open_sem);
|
|
|
|
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 = {
|
|
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
|
|
.owner = THIS_MODULE,
|
|
#endif
|
|
.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 = {
|
|
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
|
|
.owner = THIS_MODULE,
|
|
#endif
|
|
.ioctl = rme96xx_mixer_ioctl,
|
|
.open = rme96xx_mixer_open,
|
|
.release = rme96xx_mixer_release,
|
|
};
|
|
|