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linux/sound/pci/rme32.c
Takashi Iwai 55d2d046b2 ALSA: rme32: Fix the missing snd_card_free() call at probe error 
The previous cleanup with devres may lead to the incorrect release
orders at the probe error handling due to the devres's nature.  Until
we register the card, snd_card_free() has to be called at first for
releasing the stuff properly when the driver tries to manage and
release the stuff via card->private_free().

This patch fixes it by calling snd_card_free() on the error from the
probe callback using a new helper function.

Fixes: 102e6156de ("ALSA: rme32: Allocate resources with device-managed APIs")
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220412102636.16000-23-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2022-04-12 17:58:32 +02:00

1943 lines
56 KiB
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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* ALSA driver for RME Digi32, Digi32/8 and Digi32 PRO audio interfaces
*
* Copyright (c) 2002-2004 Martin Langer <martin-langer@gmx.de>,
* Pilo Chambert <pilo.c@wanadoo.fr>
*
* Thanks to : Anders Torger <torger@ludd.luth.se>,
* Henk Hesselink <henk@anda.nl>
* for writing the digi96-driver
* and RME for all informations.
*
* ****************************************************************************
*
* Note #1 "Sek'd models" ................................... martin 2002-12-07
*
* Identical soundcards by Sek'd were labeled:
* RME Digi 32 = Sek'd Prodif 32
* RME Digi 32 Pro = Sek'd Prodif 96
* RME Digi 32/8 = Sek'd Prodif Gold
*
* ****************************************************************************
*
* Note #2 "full duplex mode" ............................... martin 2002-12-07
*
* Full duplex doesn't work. All cards (32, 32/8, 32Pro) are working identical
* in this mode. Rec data and play data are using the same buffer therefore. At
* first you have got the playing bits in the buffer and then (after playing
* them) they were overwitten by the captured sound of the CS8412/14. Both
* modes (play/record) are running harmonically hand in hand in the same buffer
* and you have only one start bit plus one interrupt bit to control this
* paired action.
* This is opposite to the latter rme96 where playing and capturing is totally
* separated and so their full duplex mode is supported by alsa (using two
* start bits and two interrupts for two different buffers).
* But due to the wrong sequence of playing and capturing ALSA shows no solved
* full duplex support for the rme32 at the moment. That's bad, but I'm not
* able to solve it. Are you motivated enough to solve this problem now? Your
* patch would be welcome!
*
* ****************************************************************************
*
* "The story after the long seeking" -- tiwai
*
* Ok, the situation regarding the full duplex is now improved a bit.
* In the fullduplex mode (given by the module parameter), the hardware buffer
* is split to halves for read and write directions at the DMA pointer.
* That is, the half above the current DMA pointer is used for write, and
* the half below is used for read. To mangle this strange behavior, an
* software intermediate buffer is introduced. This is, of course, not good
* from the viewpoint of the data transfer efficiency. However, this allows
* you to use arbitrary buffer sizes, instead of the fixed I/O buffer size.
*
* ****************************************************************************
*/
#include <linux/delay.h>
#include <linux/gfp.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/pci.h>
#include <linux/module.h>
#include <linux/io.h>
#include <sound/core.h>
#include <sound/info.h>
#include <sound/control.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/pcm-indirect.h>
#include <sound/asoundef.h>
#include <sound/initval.h>
static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
static bool fullduplex[SNDRV_CARDS]; // = {[0 ... (SNDRV_CARDS - 1)] = 1};
module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "Index value for RME Digi32 soundcard.");
module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id, "ID string for RME Digi32 soundcard.");
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "Enable RME Digi32 soundcard.");
module_param_array(fullduplex, bool, NULL, 0444);
MODULE_PARM_DESC(fullduplex, "Support full-duplex mode.");
MODULE_AUTHOR("Martin Langer <martin-langer@gmx.de>, Pilo Chambert <pilo.c@wanadoo.fr>");
MODULE_DESCRIPTION("RME Digi32, Digi32/8, Digi32 PRO");
MODULE_LICENSE("GPL");
/* Defines for RME Digi32 series */
#define RME32_SPDIF_NCHANNELS 2
/* Playback and capture buffer size */
#define RME32_BUFFER_SIZE 0x20000
/* IO area size */
#define RME32_IO_SIZE 0x30000
/* IO area offsets */
#define RME32_IO_DATA_BUFFER 0x0
#define RME32_IO_CONTROL_REGISTER 0x20000
#define RME32_IO_GET_POS 0x20000
#define RME32_IO_CONFIRM_ACTION_IRQ 0x20004
#define RME32_IO_RESET_POS 0x20100
/* Write control register bits */
#define RME32_WCR_START (1 << 0) /* startbit */
#define RME32_WCR_MONO (1 << 1) /* 0=stereo, 1=mono
Setting the whole card to mono
doesn't seem to be very useful.
A software-solution can handle
full-duplex with one direction in
stereo and the other way in mono.
So, the hardware should work all
the time in stereo! */
#define RME32_WCR_MODE24 (1 << 2) /* 0=16bit, 1=32bit */
#define RME32_WCR_SEL (1 << 3) /* 0=input on output, 1=normal playback/capture */
#define RME32_WCR_FREQ_0 (1 << 4) /* frequency (play) */
#define RME32_WCR_FREQ_1 (1 << 5)
#define RME32_WCR_INP_0 (1 << 6) /* input switch */
#define RME32_WCR_INP_1 (1 << 7)
#define RME32_WCR_RESET (1 << 8) /* Reset address */
#define RME32_WCR_MUTE (1 << 9) /* digital mute for output */
#define RME32_WCR_PRO (1 << 10) /* 1=professional, 0=consumer */
#define RME32_WCR_DS_BM (1 << 11) /* 1=DoubleSpeed (only PRO-Version); 1=BlockMode (only Adat-Version) */
#define RME32_WCR_ADAT (1 << 12) /* Adat Mode (only Adat-Version) */
#define RME32_WCR_AUTOSYNC (1 << 13) /* AutoSync */
#define RME32_WCR_PD (1 << 14) /* DAC Reset (only PRO-Version) */
#define RME32_WCR_EMP (1 << 15) /* 1=Emphasis on (only PRO-Version) */
#define RME32_WCR_BITPOS_FREQ_0 4
#define RME32_WCR_BITPOS_FREQ_1 5
#define RME32_WCR_BITPOS_INP_0 6
#define RME32_WCR_BITPOS_INP_1 7
/* Read control register bits */
#define RME32_RCR_AUDIO_ADDR_MASK 0x1ffff
#define RME32_RCR_LOCK (1 << 23) /* 1=locked, 0=not locked */
#define RME32_RCR_ERF (1 << 26) /* 1=Error, 0=no Error */
#define RME32_RCR_FREQ_0 (1 << 27) /* CS841x frequency (record) */
#define RME32_RCR_FREQ_1 (1 << 28)
#define RME32_RCR_FREQ_2 (1 << 29)
#define RME32_RCR_KMODE (1 << 30) /* card mode: 1=PLL, 0=quartz */
#define RME32_RCR_IRQ (1 << 31) /* interrupt */
#define RME32_RCR_BITPOS_F0 27
#define RME32_RCR_BITPOS_F1 28
#define RME32_RCR_BITPOS_F2 29
/* Input types */
#define RME32_INPUT_OPTICAL 0
#define RME32_INPUT_COAXIAL 1
#define RME32_INPUT_INTERNAL 2
#define RME32_INPUT_XLR 3
/* Clock modes */
#define RME32_CLOCKMODE_SLAVE 0
#define RME32_CLOCKMODE_MASTER_32 1
#define RME32_CLOCKMODE_MASTER_44 2
#define RME32_CLOCKMODE_MASTER_48 3
/* Block sizes in bytes */
#define RME32_BLOCK_SIZE 8192
/* Software intermediate buffer (max) size */
#define RME32_MID_BUFFER_SIZE (1024*1024)
/* Hardware revisions */
#define RME32_32_REVISION 192
#define RME32_328_REVISION_OLD 100
#define RME32_328_REVISION_NEW 101
#define RME32_PRO_REVISION_WITH_8412 192
#define RME32_PRO_REVISION_WITH_8414 150
struct rme32 {
spinlock_t lock;
int irq;
unsigned long port;
void __iomem *iobase;
u32 wcreg; /* cached write control register value */
u32 wcreg_spdif; /* S/PDIF setup */
u32 wcreg_spdif_stream; /* S/PDIF setup (temporary) */
u32 rcreg; /* cached read control register value */
u8 rev; /* card revision number */
struct snd_pcm_substream *playback_substream;
struct snd_pcm_substream *capture_substream;
int playback_frlog; /* log2 of framesize */
int capture_frlog;
size_t playback_periodsize; /* in bytes, zero if not used */
size_t capture_periodsize; /* in bytes, zero if not used */
unsigned int fullduplex_mode;
int running;
struct snd_pcm_indirect playback_pcm;
struct snd_pcm_indirect capture_pcm;
struct snd_card *card;
struct snd_pcm *spdif_pcm;
struct snd_pcm *adat_pcm;
struct pci_dev *pci;
struct snd_kcontrol *spdif_ctl;
};
static const struct pci_device_id snd_rme32_ids[] = {
{PCI_VDEVICE(XILINX_RME, PCI_DEVICE_ID_RME_DIGI32), 0,},
{PCI_VDEVICE(XILINX_RME, PCI_DEVICE_ID_RME_DIGI32_8), 0,},
{PCI_VDEVICE(XILINX_RME, PCI_DEVICE_ID_RME_DIGI32_PRO), 0,},
{0,}
};
MODULE_DEVICE_TABLE(pci, snd_rme32_ids);
#define RME32_ISWORKING(rme32) ((rme32)->wcreg & RME32_WCR_START)
#define RME32_PRO_WITH_8414(rme32) ((rme32)->pci->device == PCI_DEVICE_ID_RME_DIGI32_PRO && (rme32)->rev == RME32_PRO_REVISION_WITH_8414)
static int snd_rme32_playback_prepare(struct snd_pcm_substream *substream);
static int snd_rme32_capture_prepare(struct snd_pcm_substream *substream);
static int snd_rme32_pcm_trigger(struct snd_pcm_substream *substream, int cmd);
static void snd_rme32_proc_init(struct rme32 * rme32);
static int snd_rme32_create_switches(struct snd_card *card, struct rme32 * rme32);
static inline unsigned int snd_rme32_pcm_byteptr(struct rme32 * rme32)
{
return (readl(rme32->iobase + RME32_IO_GET_POS)
& RME32_RCR_AUDIO_ADDR_MASK);
}
/* silence callback for halfduplex mode */
static int snd_rme32_playback_silence(struct snd_pcm_substream *substream,
int channel, unsigned long pos,
unsigned long count)
{
struct rme32 *rme32 = snd_pcm_substream_chip(substream);
memset_io(rme32->iobase + RME32_IO_DATA_BUFFER + pos, 0, count);
return 0;
}
/* copy callback for halfduplex mode */
static int snd_rme32_playback_copy(struct snd_pcm_substream *substream,
int channel, unsigned long pos,
void __user *src, unsigned long count)
{
struct rme32 *rme32 = snd_pcm_substream_chip(substream);
if (copy_from_user_toio(rme32->iobase + RME32_IO_DATA_BUFFER + pos,
src, count))
return -EFAULT;
return 0;
}
static int snd_rme32_playback_copy_kernel(struct snd_pcm_substream *substream,
int channel, unsigned long pos,
void *src, unsigned long count)
{
struct rme32 *rme32 = snd_pcm_substream_chip(substream);
memcpy_toio(rme32->iobase + RME32_IO_DATA_BUFFER + pos, src, count);
return 0;
}
/* copy callback for halfduplex mode */
static int snd_rme32_capture_copy(struct snd_pcm_substream *substream,
int channel, unsigned long pos,
void __user *dst, unsigned long count)
{
struct rme32 *rme32 = snd_pcm_substream_chip(substream);
if (copy_to_user_fromio(dst,
rme32->iobase + RME32_IO_DATA_BUFFER + pos,
count))
return -EFAULT;
return 0;
}
static int snd_rme32_capture_copy_kernel(struct snd_pcm_substream *substream,
int channel, unsigned long pos,
void *dst, unsigned long count)
{
struct rme32 *rme32 = snd_pcm_substream_chip(substream);
memcpy_fromio(dst, rme32->iobase + RME32_IO_DATA_BUFFER + pos, count);
return 0;
}
/*
* SPDIF I/O capabilities (half-duplex mode)
*/
static const struct snd_pcm_hardware snd_rme32_spdif_info = {
.info = (SNDRV_PCM_INFO_MMAP_IOMEM |
SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_PAUSE |
SNDRV_PCM_INFO_SYNC_START |
SNDRV_PCM_INFO_SYNC_APPLPTR),
.formats = (SNDRV_PCM_FMTBIT_S16_LE |
SNDRV_PCM_FMTBIT_S32_LE),
.rates = (SNDRV_PCM_RATE_32000 |
SNDRV_PCM_RATE_44100 |
SNDRV_PCM_RATE_48000),
.rate_min = 32000,
.rate_max = 48000,
.channels_min = 2,
.channels_max = 2,
.buffer_bytes_max = RME32_BUFFER_SIZE,
.period_bytes_min = RME32_BLOCK_SIZE,
.period_bytes_max = RME32_BLOCK_SIZE,
.periods_min = RME32_BUFFER_SIZE / RME32_BLOCK_SIZE,
.periods_max = RME32_BUFFER_SIZE / RME32_BLOCK_SIZE,
.fifo_size = 0,
};
/*
* ADAT I/O capabilities (half-duplex mode)
*/
static const struct snd_pcm_hardware snd_rme32_adat_info =
{
.info = (SNDRV_PCM_INFO_MMAP_IOMEM |
SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_PAUSE |
SNDRV_PCM_INFO_SYNC_START |
SNDRV_PCM_INFO_SYNC_APPLPTR),
.formats= SNDRV_PCM_FMTBIT_S16_LE,
.rates = (SNDRV_PCM_RATE_44100 |
SNDRV_PCM_RATE_48000),
.rate_min = 44100,
.rate_max = 48000,
.channels_min = 8,
.channels_max = 8,
.buffer_bytes_max = RME32_BUFFER_SIZE,
.period_bytes_min = RME32_BLOCK_SIZE,
.period_bytes_max = RME32_BLOCK_SIZE,
.periods_min = RME32_BUFFER_SIZE / RME32_BLOCK_SIZE,
.periods_max = RME32_BUFFER_SIZE / RME32_BLOCK_SIZE,
.fifo_size = 0,
};
/*
* SPDIF I/O capabilities (full-duplex mode)
*/
static const struct snd_pcm_hardware snd_rme32_spdif_fd_info = {
.info = (SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_PAUSE |
SNDRV_PCM_INFO_SYNC_START |
SNDRV_PCM_INFO_SYNC_APPLPTR),
.formats = (SNDRV_PCM_FMTBIT_S16_LE |
SNDRV_PCM_FMTBIT_S32_LE),
.rates = (SNDRV_PCM_RATE_32000 |
SNDRV_PCM_RATE_44100 |
SNDRV_PCM_RATE_48000),
.rate_min = 32000,
.rate_max = 48000,
.channels_min = 2,
.channels_max = 2,
.buffer_bytes_max = RME32_MID_BUFFER_SIZE,
.period_bytes_min = RME32_BLOCK_SIZE,
.period_bytes_max = RME32_BLOCK_SIZE,
.periods_min = 2,
.periods_max = RME32_MID_BUFFER_SIZE / RME32_BLOCK_SIZE,
.fifo_size = 0,
};
/*
* ADAT I/O capabilities (full-duplex mode)
*/
static const struct snd_pcm_hardware snd_rme32_adat_fd_info =
{
.info = (SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_PAUSE |
SNDRV_PCM_INFO_SYNC_START |
SNDRV_PCM_INFO_SYNC_APPLPTR),
.formats= SNDRV_PCM_FMTBIT_S16_LE,
.rates = (SNDRV_PCM_RATE_44100 |
SNDRV_PCM_RATE_48000),
.rate_min = 44100,
.rate_max = 48000,
.channels_min = 8,
.channels_max = 8,
.buffer_bytes_max = RME32_MID_BUFFER_SIZE,
.period_bytes_min = RME32_BLOCK_SIZE,
.period_bytes_max = RME32_BLOCK_SIZE,
.periods_min = 2,
.periods_max = RME32_MID_BUFFER_SIZE / RME32_BLOCK_SIZE,
.fifo_size = 0,
};
static void snd_rme32_reset_dac(struct rme32 *rme32)
{
writel(rme32->wcreg | RME32_WCR_PD,
rme32->iobase + RME32_IO_CONTROL_REGISTER);
writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
}
static int snd_rme32_playback_getrate(struct rme32 * rme32)
{
int rate;
rate = ((rme32->wcreg >> RME32_WCR_BITPOS_FREQ_0) & 1) +
(((rme32->wcreg >> RME32_WCR_BITPOS_FREQ_1) & 1) << 1);
switch (rate) {
case 1:
rate = 32000;
break;
case 2:
rate = 44100;
break;
case 3:
rate = 48000;
break;
default:
return -1;
}
return (rme32->wcreg & RME32_WCR_DS_BM) ? rate << 1 : rate;
}
static int snd_rme32_capture_getrate(struct rme32 * rme32, int *is_adat)
{
int n;
*is_adat = 0;
if (rme32->rcreg & RME32_RCR_LOCK) {
/* ADAT rate */
*is_adat = 1;
}
if (rme32->rcreg & RME32_RCR_ERF) {
return -1;
}
/* S/PDIF rate */
n = ((rme32->rcreg >> RME32_RCR_BITPOS_F0) & 1) +
(((rme32->rcreg >> RME32_RCR_BITPOS_F1) & 1) << 1) +
(((rme32->rcreg >> RME32_RCR_BITPOS_F2) & 1) << 2);
if (RME32_PRO_WITH_8414(rme32))
switch (n) { /* supporting the CS8414 */
case 0:
case 1:
case 2:
return -1;
case 3:
return 96000;
case 4:
return 88200;
case 5:
return 48000;
case 6:
return 44100;
case 7:
return 32000;
default:
return -1;
}
else
switch (n) { /* supporting the CS8412 */
case 0:
return -1;
case 1:
return 48000;
case 2:
return 44100;
case 3:
return 32000;
case 4:
return 48000;
case 5:
return 44100;
case 6:
return 44056;
case 7:
return 32000;
default:
break;
}
return -1;
}
static int snd_rme32_playback_setrate(struct rme32 * rme32, int rate)
{
int ds;
ds = rme32->wcreg & RME32_WCR_DS_BM;
switch (rate) {
case 32000:
rme32->wcreg &= ~RME32_WCR_DS_BM;
rme32->wcreg = (rme32->wcreg | RME32_WCR_FREQ_0) &
~RME32_WCR_FREQ_1;
break;
case 44100:
rme32->wcreg &= ~RME32_WCR_DS_BM;
rme32->wcreg = (rme32->wcreg | RME32_WCR_FREQ_1) &
~RME32_WCR_FREQ_0;
break;
case 48000:
rme32->wcreg &= ~RME32_WCR_DS_BM;
rme32->wcreg = (rme32->wcreg | RME32_WCR_FREQ_0) |
RME32_WCR_FREQ_1;
break;
case 64000:
if (rme32->pci->device != PCI_DEVICE_ID_RME_DIGI32_PRO)
return -EINVAL;
rme32->wcreg |= RME32_WCR_DS_BM;
rme32->wcreg = (rme32->wcreg | RME32_WCR_FREQ_0) &
~RME32_WCR_FREQ_1;
break;
case 88200:
if (rme32->pci->device != PCI_DEVICE_ID_RME_DIGI32_PRO)
return -EINVAL;
rme32->wcreg |= RME32_WCR_DS_BM;
rme32->wcreg = (rme32->wcreg | RME32_WCR_FREQ_1) &
~RME32_WCR_FREQ_0;
break;
case 96000:
if (rme32->pci->device != PCI_DEVICE_ID_RME_DIGI32_PRO)
return -EINVAL;
rme32->wcreg |= RME32_WCR_DS_BM;
rme32->wcreg = (rme32->wcreg | RME32_WCR_FREQ_0) |
RME32_WCR_FREQ_1;
break;
default:
return -EINVAL;
}
if ((!ds && rme32->wcreg & RME32_WCR_DS_BM) ||
(ds && !(rme32->wcreg & RME32_WCR_DS_BM)))
{
/* change to/from double-speed: reset the DAC (if available) */
snd_rme32_reset_dac(rme32);
} else {
writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
}
return 0;
}
static int snd_rme32_setclockmode(struct rme32 * rme32, int mode)
{
switch (mode) {
case RME32_CLOCKMODE_SLAVE:
/* AutoSync */
rme32->wcreg = (rme32->wcreg & ~RME32_WCR_FREQ_0) &
~RME32_WCR_FREQ_1;
break;
case RME32_CLOCKMODE_MASTER_32:
/* Internal 32.0kHz */
rme32->wcreg = (rme32->wcreg | RME32_WCR_FREQ_0) &
~RME32_WCR_FREQ_1;
break;
case RME32_CLOCKMODE_MASTER_44:
/* Internal 44.1kHz */
rme32->wcreg = (rme32->wcreg & ~RME32_WCR_FREQ_0) |
RME32_WCR_FREQ_1;
break;
case RME32_CLOCKMODE_MASTER_48:
/* Internal 48.0kHz */
rme32->wcreg = (rme32->wcreg | RME32_WCR_FREQ_0) |
RME32_WCR_FREQ_1;
break;
default:
return -EINVAL;
}
writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
return 0;
}
static int snd_rme32_getclockmode(struct rme32 * rme32)
{
return ((rme32->wcreg >> RME32_WCR_BITPOS_FREQ_0) & 1) +
(((rme32->wcreg >> RME32_WCR_BITPOS_FREQ_1) & 1) << 1);
}
static int snd_rme32_setinputtype(struct rme32 * rme32, int type)
{
switch (type) {
case RME32_INPUT_OPTICAL:
rme32->wcreg = (rme32->wcreg & ~RME32_WCR_INP_0) &
~RME32_WCR_INP_1;
break;
case RME32_INPUT_COAXIAL:
rme32->wcreg = (rme32->wcreg | RME32_WCR_INP_0) &
~RME32_WCR_INP_1;
break;
case RME32_INPUT_INTERNAL:
rme32->wcreg = (rme32->wcreg & ~RME32_WCR_INP_0) |
RME32_WCR_INP_1;
break;
case RME32_INPUT_XLR:
rme32->wcreg = (rme32->wcreg | RME32_WCR_INP_0) |
RME32_WCR_INP_1;
break;
default:
return -EINVAL;
}
writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
return 0;
}
static int snd_rme32_getinputtype(struct rme32 * rme32)
{
return ((rme32->wcreg >> RME32_WCR_BITPOS_INP_0) & 1) +
(((rme32->wcreg >> RME32_WCR_BITPOS_INP_1) & 1) << 1);
}
static void
snd_rme32_setframelog(struct rme32 * rme32, int n_channels, int is_playback)
{
int frlog;
if (n_channels == 2) {
frlog = 1;
} else {
/* assume 8 channels */
frlog = 3;
}
if (is_playback) {
frlog += (rme32->wcreg & RME32_WCR_MODE24) ? 2 : 1;
rme32->playback_frlog = frlog;
} else {
frlog += (rme32->wcreg & RME32_WCR_MODE24) ? 2 : 1;
rme32->capture_frlog = frlog;
}
}
static int snd_rme32_setformat(struct rme32 *rme32, snd_pcm_format_t format)
{
switch (format) {
case SNDRV_PCM_FORMAT_S16_LE:
rme32->wcreg &= ~RME32_WCR_MODE24;
break;
case SNDRV_PCM_FORMAT_S32_LE:
rme32->wcreg |= RME32_WCR_MODE24;
break;
default:
return -EINVAL;
}
writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
return 0;
}
static int
snd_rme32_playback_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
int err, rate, dummy;
struct rme32 *rme32 = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
if (!rme32->fullduplex_mode) {
runtime->dma_area = (void __force *)(rme32->iobase +
RME32_IO_DATA_BUFFER);
runtime->dma_addr = rme32->port + RME32_IO_DATA_BUFFER;
runtime->dma_bytes = RME32_BUFFER_SIZE;
}
spin_lock_irq(&rme32->lock);
rate = 0;
if (rme32->rcreg & RME32_RCR_KMODE)
rate = snd_rme32_capture_getrate(rme32, &dummy);
if (rate > 0) {
/* AutoSync */
if ((int)params_rate(params) != rate) {
spin_unlock_irq(&rme32->lock);
return -EIO;
}
} else {
err = snd_rme32_playback_setrate(rme32, params_rate(params));
if (err < 0) {
spin_unlock_irq(&rme32->lock);
return err;
}
}
err = snd_rme32_setformat(rme32, params_format(params));
if (err < 0) {
spin_unlock_irq(&rme32->lock);
return err;
}
snd_rme32_setframelog(rme32, params_channels(params), 1);
if (rme32->capture_periodsize != 0) {
if (params_period_size(params) << rme32->playback_frlog != rme32->capture_periodsize) {
spin_unlock_irq(&rme32->lock);
return -EBUSY;
}
}
rme32->playback_periodsize = params_period_size(params) << rme32->playback_frlog;
/* S/PDIF setup */
if ((rme32->wcreg & RME32_WCR_ADAT) == 0) {
rme32->wcreg &= ~(RME32_WCR_PRO | RME32_WCR_EMP);
rme32->wcreg |= rme32->wcreg_spdif_stream;
writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
}
spin_unlock_irq(&rme32->lock);
return 0;
}
static int
snd_rme32_capture_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
int err, isadat, rate;
struct rme32 *rme32 = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
if (!rme32->fullduplex_mode) {
runtime->dma_area = (void __force *)rme32->iobase +
RME32_IO_DATA_BUFFER;
runtime->dma_addr = rme32->port + RME32_IO_DATA_BUFFER;
runtime->dma_bytes = RME32_BUFFER_SIZE;
}
spin_lock_irq(&rme32->lock);
/* enable AutoSync for record-preparing */
rme32->wcreg |= RME32_WCR_AUTOSYNC;
writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
err = snd_rme32_setformat(rme32, params_format(params));
if (err < 0) {
spin_unlock_irq(&rme32->lock);
return err;
}
err = snd_rme32_playback_setrate(rme32, params_rate(params));
if (err < 0) {
spin_unlock_irq(&rme32->lock);
return err;
}
rate = snd_rme32_capture_getrate(rme32, &isadat);
if (rate > 0) {
if ((int)params_rate(params) != rate) {
spin_unlock_irq(&rme32->lock);
return -EIO;
}
if ((isadat && runtime->hw.channels_min == 2) ||
(!isadat && runtime->hw.channels_min == 8)) {
spin_unlock_irq(&rme32->lock);
return -EIO;
}
}
/* AutoSync off for recording */
rme32->wcreg &= ~RME32_WCR_AUTOSYNC;
writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
snd_rme32_setframelog(rme32, params_channels(params), 0);
if (rme32->playback_periodsize != 0) {
if (params_period_size(params) << rme32->capture_frlog !=
rme32->playback_periodsize) {
spin_unlock_irq(&rme32->lock);
return -EBUSY;
}
}
rme32->capture_periodsize =
params_period_size(params) << rme32->capture_frlog;
spin_unlock_irq(&rme32->lock);
return 0;
}
static void snd_rme32_pcm_start(struct rme32 * rme32, int from_pause)
{
if (!from_pause) {
writel(0, rme32->iobase + RME32_IO_RESET_POS);
}
rme32->wcreg |= RME32_WCR_START;
writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
}
static void snd_rme32_pcm_stop(struct rme32 * rme32, int to_pause)
{
/*
* Check if there is an unconfirmed IRQ, if so confirm it, or else
* the hardware will not stop generating interrupts
*/
rme32->rcreg = readl(rme32->iobase + RME32_IO_CONTROL_REGISTER);
if (rme32->rcreg & RME32_RCR_IRQ) {
writel(0, rme32->iobase + RME32_IO_CONFIRM_ACTION_IRQ);
}
rme32->wcreg &= ~RME32_WCR_START;
if (rme32->wcreg & RME32_WCR_SEL)
rme32->wcreg |= RME32_WCR_MUTE;
writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
if (! to_pause)
writel(0, rme32->iobase + RME32_IO_RESET_POS);
}
static irqreturn_t snd_rme32_interrupt(int irq, void *dev_id)
{
struct rme32 *rme32 = (struct rme32 *) dev_id;
rme32->rcreg = readl(rme32->iobase + RME32_IO_CONTROL_REGISTER);
if (!(rme32->rcreg & RME32_RCR_IRQ)) {
return IRQ_NONE;
} else {
if (rme32->capture_substream) {
snd_pcm_period_elapsed(rme32->capture_substream);
}
if (rme32->playback_substream) {
snd_pcm_period_elapsed(rme32->playback_substream);
}
writel(0, rme32->iobase + RME32_IO_CONFIRM_ACTION_IRQ);
}
return IRQ_HANDLED;
}
static const unsigned int period_bytes[] = { RME32_BLOCK_SIZE };
static const struct snd_pcm_hw_constraint_list hw_constraints_period_bytes = {
.count = ARRAY_SIZE(period_bytes),
.list = period_bytes,
.mask = 0
};
static void snd_rme32_set_buffer_constraint(struct rme32 *rme32, struct snd_pcm_runtime *runtime)
{
if (! rme32->fullduplex_mode) {
snd_pcm_hw_constraint_single(runtime,
SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
RME32_BUFFER_SIZE);
snd_pcm_hw_constraint_list(runtime, 0,
SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
&hw_constraints_period_bytes);
}
}
static int snd_rme32_playback_spdif_open(struct snd_pcm_substream *substream)
{
int rate, dummy;
struct rme32 *rme32 = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
snd_pcm_set_sync(substream);
spin_lock_irq(&rme32->lock);
if (rme32->playback_substream != NULL) {
spin_unlock_irq(&rme32->lock);
return -EBUSY;
}
rme32->wcreg &= ~RME32_WCR_ADAT;
writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
rme32->playback_substream = substream;
spin_unlock_irq(&rme32->lock);
if (rme32->fullduplex_mode)
runtime->hw = snd_rme32_spdif_fd_info;
else
runtime->hw = snd_rme32_spdif_info;
if (rme32->pci->device == PCI_DEVICE_ID_RME_DIGI32_PRO) {
runtime->hw.rates |= SNDRV_PCM_RATE_64000 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000;
runtime->hw.rate_max = 96000;
}
rate = 0;
if (rme32->rcreg & RME32_RCR_KMODE)
rate = snd_rme32_capture_getrate(rme32, &dummy);
if (rate > 0) {
/* AutoSync */
runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
runtime->hw.rate_min = rate;
runtime->hw.rate_max = rate;
}
snd_rme32_set_buffer_constraint(rme32, runtime);
rme32->wcreg_spdif_stream = rme32->wcreg_spdif;
rme32->spdif_ctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
snd_ctl_notify(rme32->card, SNDRV_CTL_EVENT_MASK_VALUE |
SNDRV_CTL_EVENT_MASK_INFO, &rme32->spdif_ctl->id);
return 0;
}
static int snd_rme32_capture_spdif_open(struct snd_pcm_substream *substream)
{
int isadat, rate;
struct rme32 *rme32 = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
snd_pcm_set_sync(substream);
spin_lock_irq(&rme32->lock);
if (rme32->capture_substream != NULL) {
spin_unlock_irq(&rme32->lock);
return -EBUSY;
}
rme32->capture_substream = substream;
spin_unlock_irq(&rme32->lock);
if (rme32->fullduplex_mode)
runtime->hw = snd_rme32_spdif_fd_info;
else
runtime->hw = snd_rme32_spdif_info;
if (RME32_PRO_WITH_8414(rme32)) {
runtime->hw.rates |= SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000;
runtime->hw.rate_max = 96000;
}
rate = snd_rme32_capture_getrate(rme32, &isadat);
if (rate > 0) {
if (isadat) {
return -EIO;
}
runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
runtime->hw.rate_min = rate;
runtime->hw.rate_max = rate;
}
snd_rme32_set_buffer_constraint(rme32, runtime);
return 0;
}
static int
snd_rme32_playback_adat_open(struct snd_pcm_substream *substream)
{
int rate, dummy;
struct rme32 *rme32 = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
snd_pcm_set_sync(substream);
spin_lock_irq(&rme32->lock);
if (rme32->playback_substream != NULL) {
spin_unlock_irq(&rme32->lock);
return -EBUSY;
}
rme32->wcreg |= RME32_WCR_ADAT;
writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
rme32->playback_substream = substream;
spin_unlock_irq(&rme32->lock);
if (rme32->fullduplex_mode)
runtime->hw = snd_rme32_adat_fd_info;
else
runtime->hw = snd_rme32_adat_info;
rate = 0;
if (rme32->rcreg & RME32_RCR_KMODE)
rate = snd_rme32_capture_getrate(rme32, &dummy);
if (rate > 0) {
/* AutoSync */
runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
runtime->hw.rate_min = rate;
runtime->hw.rate_max = rate;
}
snd_rme32_set_buffer_constraint(rme32, runtime);
return 0;
}
static int
snd_rme32_capture_adat_open(struct snd_pcm_substream *substream)
{
int isadat, rate;
struct rme32 *rme32 = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
if (rme32->fullduplex_mode)
runtime->hw = snd_rme32_adat_fd_info;
else
runtime->hw = snd_rme32_adat_info;
rate = snd_rme32_capture_getrate(rme32, &isadat);
if (rate > 0) {
if (!isadat) {
return -EIO;
}
runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
runtime->hw.rate_min = rate;
runtime->hw.rate_max = rate;
}
snd_pcm_set_sync(substream);
spin_lock_irq(&rme32->lock);
if (rme32->capture_substream != NULL) {
spin_unlock_irq(&rme32->lock);
return -EBUSY;
}
rme32->capture_substream = substream;
spin_unlock_irq(&rme32->lock);
snd_rme32_set_buffer_constraint(rme32, runtime);
return 0;
}
static int snd_rme32_playback_close(struct snd_pcm_substream *substream)
{
struct rme32 *rme32 = snd_pcm_substream_chip(substream);
int spdif = 0;
spin_lock_irq(&rme32->lock);
rme32->playback_substream = NULL;
rme32->playback_periodsize = 0;
spdif = (rme32->wcreg & RME32_WCR_ADAT) == 0;
spin_unlock_irq(&rme32->lock);
if (spdif) {
rme32->spdif_ctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
snd_ctl_notify(rme32->card, SNDRV_CTL_EVENT_MASK_VALUE |
SNDRV_CTL_EVENT_MASK_INFO,
&rme32->spdif_ctl->id);
}
return 0;
}
static int snd_rme32_capture_close(struct snd_pcm_substream *substream)
{
struct rme32 *rme32 = snd_pcm_substream_chip(substream);
spin_lock_irq(&rme32->lock);
rme32->capture_substream = NULL;
rme32->capture_periodsize = 0;
spin_unlock_irq(&rme32->lock);
return 0;
}
static int snd_rme32_playback_prepare(struct snd_pcm_substream *substream)
{
struct rme32 *rme32 = snd_pcm_substream_chip(substream);
spin_lock_irq(&rme32->lock);
if (rme32->fullduplex_mode) {
memset(&rme32->playback_pcm, 0, sizeof(rme32->playback_pcm));
rme32->playback_pcm.hw_buffer_size = RME32_BUFFER_SIZE;
rme32->playback_pcm.sw_buffer_size = snd_pcm_lib_buffer_bytes(substream);
} else {
writel(0, rme32->iobase + RME32_IO_RESET_POS);
}
if (rme32->wcreg & RME32_WCR_SEL)
rme32->wcreg &= ~RME32_WCR_MUTE;
writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
spin_unlock_irq(&rme32->lock);
return 0;
}
static int snd_rme32_capture_prepare(struct snd_pcm_substream *substream)
{
struct rme32 *rme32 = snd_pcm_substream_chip(substream);
spin_lock_irq(&rme32->lock);
if (rme32->fullduplex_mode) {
memset(&rme32->capture_pcm, 0, sizeof(rme32->capture_pcm));
rme32->capture_pcm.hw_buffer_size = RME32_BUFFER_SIZE;
rme32->capture_pcm.hw_queue_size = RME32_BUFFER_SIZE / 2;
rme32->capture_pcm.sw_buffer_size = snd_pcm_lib_buffer_bytes(substream);
} else {
writel(0, rme32->iobase + RME32_IO_RESET_POS);
}
spin_unlock_irq(&rme32->lock);
return 0;
}
static int
snd_rme32_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
{
struct rme32 *rme32 = snd_pcm_substream_chip(substream);
struct snd_pcm_substream *s;
spin_lock(&rme32->lock);
snd_pcm_group_for_each_entry(s, substream) {
if (s != rme32->playback_substream &&
s != rme32->capture_substream)
continue;
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
rme32->running |= (1 << s->stream);
if (rme32->fullduplex_mode) {
/* remember the current DMA position */
if (s == rme32->playback_substream) {
rme32->playback_pcm.hw_io =
rme32->playback_pcm.hw_data = snd_rme32_pcm_byteptr(rme32);
} else {
rme32->capture_pcm.hw_io =
rme32->capture_pcm.hw_data = snd_rme32_pcm_byteptr(rme32);
}
}
break;
case SNDRV_PCM_TRIGGER_STOP:
rme32->running &= ~(1 << s->stream);
break;
}
snd_pcm_trigger_done(s, substream);
}
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
if (rme32->running && ! RME32_ISWORKING(rme32))
snd_rme32_pcm_start(rme32, 0);
break;
case SNDRV_PCM_TRIGGER_STOP:
if (! rme32->running && RME32_ISWORKING(rme32))
snd_rme32_pcm_stop(rme32, 0);
break;
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
if (rme32->running && RME32_ISWORKING(rme32))
snd_rme32_pcm_stop(rme32, 1);
break;
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
if (rme32->running && ! RME32_ISWORKING(rme32))
snd_rme32_pcm_start(rme32, 1);
break;
}
spin_unlock(&rme32->lock);
return 0;
}
/* pointer callback for halfduplex mode */
static snd_pcm_uframes_t
snd_rme32_playback_pointer(struct snd_pcm_substream *substream)
{
struct rme32 *rme32 = snd_pcm_substream_chip(substream);
return snd_rme32_pcm_byteptr(rme32) >> rme32->playback_frlog;
}
static snd_pcm_uframes_t
snd_rme32_capture_pointer(struct snd_pcm_substream *substream)
{
struct rme32 *rme32 = snd_pcm_substream_chip(substream);
return snd_rme32_pcm_byteptr(rme32) >> rme32->capture_frlog;
}
/* ack and pointer callbacks for fullduplex mode */
static void snd_rme32_pb_trans_copy(struct snd_pcm_substream *substream,
struct snd_pcm_indirect *rec, size_t bytes)
{
struct rme32 *rme32 = snd_pcm_substream_chip(substream);
memcpy_toio(rme32->iobase + RME32_IO_DATA_BUFFER + rec->hw_data,
substream->runtime->dma_area + rec->sw_data, bytes);
}
static int snd_rme32_playback_fd_ack(struct snd_pcm_substream *substream)
{
struct rme32 *rme32 = snd_pcm_substream_chip(substream);
struct snd_pcm_indirect *rec, *cprec;
rec = &rme32->playback_pcm;
cprec = &rme32->capture_pcm;
spin_lock(&rme32->lock);
rec->hw_queue_size = RME32_BUFFER_SIZE;
if (rme32->running & (1 << SNDRV_PCM_STREAM_CAPTURE))
rec->hw_queue_size -= cprec->hw_ready;
spin_unlock(&rme32->lock);
return snd_pcm_indirect_playback_transfer(substream, rec,
snd_rme32_pb_trans_copy);
}
static void snd_rme32_cp_trans_copy(struct snd_pcm_substream *substream,
struct snd_pcm_indirect *rec, size_t bytes)
{
struct rme32 *rme32 = snd_pcm_substream_chip(substream);
memcpy_fromio(substream->runtime->dma_area + rec->sw_data,
rme32->iobase + RME32_IO_DATA_BUFFER + rec->hw_data,
bytes);
}
static int snd_rme32_capture_fd_ack(struct snd_pcm_substream *substream)
{
struct rme32 *rme32 = snd_pcm_substream_chip(substream);
return snd_pcm_indirect_capture_transfer(substream, &rme32->capture_pcm,
snd_rme32_cp_trans_copy);
}
static snd_pcm_uframes_t
snd_rme32_playback_fd_pointer(struct snd_pcm_substream *substream)
{
struct rme32 *rme32 = snd_pcm_substream_chip(substream);
return snd_pcm_indirect_playback_pointer(substream, &rme32->playback_pcm,
snd_rme32_pcm_byteptr(rme32));
}
static snd_pcm_uframes_t
snd_rme32_capture_fd_pointer(struct snd_pcm_substream *substream)
{
struct rme32 *rme32 = snd_pcm_substream_chip(substream);
return snd_pcm_indirect_capture_pointer(substream, &rme32->capture_pcm,
snd_rme32_pcm_byteptr(rme32));
}
/* for halfduplex mode */
static const struct snd_pcm_ops snd_rme32_playback_spdif_ops = {
.open = snd_rme32_playback_spdif_open,
.close = snd_rme32_playback_close,
.hw_params = snd_rme32_playback_hw_params,
.prepare = snd_rme32_playback_prepare,
.trigger = snd_rme32_pcm_trigger,
.pointer = snd_rme32_playback_pointer,
.copy_user = snd_rme32_playback_copy,
.copy_kernel = snd_rme32_playback_copy_kernel,
.fill_silence = snd_rme32_playback_silence,
.mmap = snd_pcm_lib_mmap_iomem,
};
static const struct snd_pcm_ops snd_rme32_capture_spdif_ops = {
.open = snd_rme32_capture_spdif_open,
.close = snd_rme32_capture_close,
.hw_params = snd_rme32_capture_hw_params,
.prepare = snd_rme32_capture_prepare,
.trigger = snd_rme32_pcm_trigger,
.pointer = snd_rme32_capture_pointer,
.copy_user = snd_rme32_capture_copy,
.copy_kernel = snd_rme32_capture_copy_kernel,
.mmap = snd_pcm_lib_mmap_iomem,
};
static const struct snd_pcm_ops snd_rme32_playback_adat_ops = {
.open = snd_rme32_playback_adat_open,
.close = snd_rme32_playback_close,
.hw_params = snd_rme32_playback_hw_params,
.prepare = snd_rme32_playback_prepare,
.trigger = snd_rme32_pcm_trigger,
.pointer = snd_rme32_playback_pointer,
.copy_user = snd_rme32_playback_copy,
.copy_kernel = snd_rme32_playback_copy_kernel,
.fill_silence = snd_rme32_playback_silence,
.mmap = snd_pcm_lib_mmap_iomem,
};
static const struct snd_pcm_ops snd_rme32_capture_adat_ops = {
.open = snd_rme32_capture_adat_open,
.close = snd_rme32_capture_close,
.hw_params = snd_rme32_capture_hw_params,
.prepare = snd_rme32_capture_prepare,
.trigger = snd_rme32_pcm_trigger,
.pointer = snd_rme32_capture_pointer,
.copy_user = snd_rme32_capture_copy,
.copy_kernel = snd_rme32_capture_copy_kernel,
.mmap = snd_pcm_lib_mmap_iomem,
};
/* for fullduplex mode */
static const struct snd_pcm_ops snd_rme32_playback_spdif_fd_ops = {
.open = snd_rme32_playback_spdif_open,
.close = snd_rme32_playback_close,
.hw_params = snd_rme32_playback_hw_params,
.prepare = snd_rme32_playback_prepare,
.trigger = snd_rme32_pcm_trigger,
.pointer = snd_rme32_playback_fd_pointer,
.ack = snd_rme32_playback_fd_ack,
};
static const struct snd_pcm_ops snd_rme32_capture_spdif_fd_ops = {
.open = snd_rme32_capture_spdif_open,
.close = snd_rme32_capture_close,
.hw_params = snd_rme32_capture_hw_params,
.prepare = snd_rme32_capture_prepare,
.trigger = snd_rme32_pcm_trigger,
.pointer = snd_rme32_capture_fd_pointer,
.ack = snd_rme32_capture_fd_ack,
};
static const struct snd_pcm_ops snd_rme32_playback_adat_fd_ops = {
.open = snd_rme32_playback_adat_open,
.close = snd_rme32_playback_close,
.hw_params = snd_rme32_playback_hw_params,
.prepare = snd_rme32_playback_prepare,
.trigger = snd_rme32_pcm_trigger,
.pointer = snd_rme32_playback_fd_pointer,
.ack = snd_rme32_playback_fd_ack,
};
static const struct snd_pcm_ops snd_rme32_capture_adat_fd_ops = {
.open = snd_rme32_capture_adat_open,
.close = snd_rme32_capture_close,
.hw_params = snd_rme32_capture_hw_params,
.prepare = snd_rme32_capture_prepare,
.trigger = snd_rme32_pcm_trigger,
.pointer = snd_rme32_capture_fd_pointer,
.ack = snd_rme32_capture_fd_ack,
};
static void snd_rme32_free(struct rme32 *rme32)
{
if (rme32->irq >= 0)
snd_rme32_pcm_stop(rme32, 0);
}
static void snd_rme32_free_spdif_pcm(struct snd_pcm *pcm)
{
struct rme32 *rme32 = (struct rme32 *) pcm->private_data;
rme32->spdif_pcm = NULL;
}
static void
snd_rme32_free_adat_pcm(struct snd_pcm *pcm)
{
struct rme32 *rme32 = (struct rme32 *) pcm->private_data;
rme32->adat_pcm = NULL;
}
static int snd_rme32_create(struct rme32 *rme32)
{
struct pci_dev *pci = rme32->pci;
int err;
rme32->irq = -1;
spin_lock_init(&rme32->lock);
err = pcim_enable_device(pci);
if (err < 0)
return err;
err = pci_request_regions(pci, "RME32");
if (err < 0)
return err;
rme32->port = pci_resource_start(rme32->pci, 0);
rme32->iobase = devm_ioremap(&pci->dev, rme32->port, RME32_IO_SIZE);
if (!rme32->iobase) {
dev_err(rme32->card->dev,
"unable to remap memory region 0x%lx-0x%lx\n",
rme32->port, rme32->port + RME32_IO_SIZE - 1);
return -ENOMEM;
}
if (devm_request_irq(&pci->dev, pci->irq, snd_rme32_interrupt,
IRQF_SHARED, KBUILD_MODNAME, rme32)) {
dev_err(rme32->card->dev, "unable to grab IRQ %d\n", pci->irq);
return -EBUSY;
}
rme32->irq = pci->irq;
rme32->card->sync_irq = rme32->irq;
/* read the card's revision number */
pci_read_config_byte(pci, 8, &rme32->rev);
/* set up ALSA pcm device for S/PDIF */
err = snd_pcm_new(rme32->card, "Digi32 IEC958", 0, 1, 1, &rme32->spdif_pcm);
if (err < 0)
return err;
rme32->spdif_pcm->private_data = rme32;
rme32->spdif_pcm->private_free = snd_rme32_free_spdif_pcm;
strcpy(rme32->spdif_pcm->name, "Digi32 IEC958");
if (rme32->fullduplex_mode) {
snd_pcm_set_ops(rme32->spdif_pcm, SNDRV_PCM_STREAM_PLAYBACK,
&snd_rme32_playback_spdif_fd_ops);
snd_pcm_set_ops(rme32->spdif_pcm, SNDRV_PCM_STREAM_CAPTURE,
&snd_rme32_capture_spdif_fd_ops);
snd_pcm_set_managed_buffer_all(rme32->spdif_pcm, SNDRV_DMA_TYPE_CONTINUOUS,
NULL, 0, RME32_MID_BUFFER_SIZE);
rme32->spdif_pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
} else {
snd_pcm_set_ops(rme32->spdif_pcm, SNDRV_PCM_STREAM_PLAYBACK,
&snd_rme32_playback_spdif_ops);
snd_pcm_set_ops(rme32->spdif_pcm, SNDRV_PCM_STREAM_CAPTURE,
&snd_rme32_capture_spdif_ops);
rme32->spdif_pcm->info_flags = SNDRV_PCM_INFO_HALF_DUPLEX;
}
/* set up ALSA pcm device for ADAT */
if ((pci->device == PCI_DEVICE_ID_RME_DIGI32) ||
(pci->device == PCI_DEVICE_ID_RME_DIGI32_PRO)) {
/* ADAT is not available on DIGI32 and DIGI32 Pro */
rme32->adat_pcm = NULL;
}
else {
err = snd_pcm_new(rme32->card, "Digi32 ADAT", 1,
1, 1, &rme32->adat_pcm);
if (err < 0)
return err;
rme32->adat_pcm->private_data = rme32;
rme32->adat_pcm->private_free = snd_rme32_free_adat_pcm;
strcpy(rme32->adat_pcm->name, "Digi32 ADAT");
if (rme32->fullduplex_mode) {
snd_pcm_set_ops(rme32->adat_pcm, SNDRV_PCM_STREAM_PLAYBACK,
&snd_rme32_playback_adat_fd_ops);
snd_pcm_set_ops(rme32->adat_pcm, SNDRV_PCM_STREAM_CAPTURE,
&snd_rme32_capture_adat_fd_ops);
snd_pcm_set_managed_buffer_all(rme32->adat_pcm, SNDRV_DMA_TYPE_CONTINUOUS,
NULL,
0, RME32_MID_BUFFER_SIZE);
rme32->adat_pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
} else {
snd_pcm_set_ops(rme32->adat_pcm, SNDRV_PCM_STREAM_PLAYBACK,
&snd_rme32_playback_adat_ops);
snd_pcm_set_ops(rme32->adat_pcm, SNDRV_PCM_STREAM_CAPTURE,
&snd_rme32_capture_adat_ops);
rme32->adat_pcm->info_flags = SNDRV_PCM_INFO_HALF_DUPLEX;
}
}
rme32->playback_periodsize = 0;
rme32->capture_periodsize = 0;
/* make sure playback/capture is stopped, if by some reason active */
snd_rme32_pcm_stop(rme32, 0);
/* reset DAC */
snd_rme32_reset_dac(rme32);
/* reset buffer pointer */
writel(0, rme32->iobase + RME32_IO_RESET_POS);
/* set default values in registers */
rme32->wcreg = RME32_WCR_SEL | /* normal playback */
RME32_WCR_INP_0 | /* input select */
RME32_WCR_MUTE; /* muting on */
writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
/* init switch interface */
err = snd_rme32_create_switches(rme32->card, rme32);
if (err < 0)
return err;
/* init proc interface */
snd_rme32_proc_init(rme32);
rme32->capture_substream = NULL;
rme32->playback_substream = NULL;
return 0;
}
/*
* proc interface
*/
static void
snd_rme32_proc_read(struct snd_info_entry * entry, struct snd_info_buffer *buffer)
{
int n;
struct rme32 *rme32 = (struct rme32 *) entry->private_data;
rme32->rcreg = readl(rme32->iobase + RME32_IO_CONTROL_REGISTER);
snd_iprintf(buffer, rme32->card->longname);
snd_iprintf(buffer, " (index #%d)\n", rme32->card->number + 1);
snd_iprintf(buffer, "\nGeneral settings\n");
if (rme32->fullduplex_mode)
snd_iprintf(buffer, " Full-duplex mode\n");
else
snd_iprintf(buffer, " Half-duplex mode\n");
if (RME32_PRO_WITH_8414(rme32)) {
snd_iprintf(buffer, " receiver: CS8414\n");
} else {
snd_iprintf(buffer, " receiver: CS8412\n");
}
if (rme32->wcreg & RME32_WCR_MODE24) {
snd_iprintf(buffer, " format: 24 bit");
} else {
snd_iprintf(buffer, " format: 16 bit");
}
if (rme32->wcreg & RME32_WCR_MONO) {
snd_iprintf(buffer, ", Mono\n");
} else {
snd_iprintf(buffer, ", Stereo\n");
}
snd_iprintf(buffer, "\nInput settings\n");
switch (snd_rme32_getinputtype(rme32)) {
case RME32_INPUT_OPTICAL:
snd_iprintf(buffer, " input: optical");
break;
case RME32_INPUT_COAXIAL:
snd_iprintf(buffer, " input: coaxial");
break;
case RME32_INPUT_INTERNAL:
snd_iprintf(buffer, " input: internal");
break;
case RME32_INPUT_XLR:
snd_iprintf(buffer, " input: XLR");
break;
}
if (snd_rme32_capture_getrate(rme32, &n) < 0) {
snd_iprintf(buffer, "\n sample rate: no valid signal\n");
} else {
if (n) {
snd_iprintf(buffer, " (8 channels)\n");
} else {
snd_iprintf(buffer, " (2 channels)\n");
}
snd_iprintf(buffer, " sample rate: %d Hz\n",
snd_rme32_capture_getrate(rme32, &n));
}
snd_iprintf(buffer, "\nOutput settings\n");
if (rme32->wcreg & RME32_WCR_SEL) {
snd_iprintf(buffer, " output signal: normal playback");
} else {
snd_iprintf(buffer, " output signal: same as input");
}
if (rme32->wcreg & RME32_WCR_MUTE) {
snd_iprintf(buffer, " (muted)\n");
} else {
snd_iprintf(buffer, "\n");
}
/* master output frequency */
if (!
((!(rme32->wcreg & RME32_WCR_FREQ_0))
&& (!(rme32->wcreg & RME32_WCR_FREQ_1)))) {
snd_iprintf(buffer, " sample rate: %d Hz\n",
snd_rme32_playback_getrate(rme32));
}
if (rme32->rcreg & RME32_RCR_KMODE) {
snd_iprintf(buffer, " sample clock source: AutoSync\n");
} else {
snd_iprintf(buffer, " sample clock source: Internal\n");
}
if (rme32->wcreg & RME32_WCR_PRO) {
snd_iprintf(buffer, " format: AES/EBU (professional)\n");
} else {
snd_iprintf(buffer, " format: IEC958 (consumer)\n");
}
if (rme32->wcreg & RME32_WCR_EMP) {
snd_iprintf(buffer, " emphasis: on\n");
} else {
snd_iprintf(buffer, " emphasis: off\n");
}
}
static void snd_rme32_proc_init(struct rme32 *rme32)
{
snd_card_ro_proc_new(rme32->card, "rme32", rme32, snd_rme32_proc_read);
}
/*
* control interface
*/
#define snd_rme32_info_loopback_control snd_ctl_boolean_mono_info
static int
snd_rme32_get_loopback_control(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
spin_lock_irq(&rme32->lock);
ucontrol->value.integer.value[0] =
rme32->wcreg & RME32_WCR_SEL ? 0 : 1;
spin_unlock_irq(&rme32->lock);
return 0;
}
static int
snd_rme32_put_loopback_control(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
unsigned int val;
int change;
val = ucontrol->value.integer.value[0] ? 0 : RME32_WCR_SEL;
spin_lock_irq(&rme32->lock);
val = (rme32->wcreg & ~RME32_WCR_SEL) | val;
change = val != rme32->wcreg;
if (ucontrol->value.integer.value[0])
val &= ~RME32_WCR_MUTE;
else
val |= RME32_WCR_MUTE;
rme32->wcreg = val;
writel(val, rme32->iobase + RME32_IO_CONTROL_REGISTER);
spin_unlock_irq(&rme32->lock);
return change;
}
static int
snd_rme32_info_inputtype_control(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
static const char * const texts[4] = {
"Optical", "Coaxial", "Internal", "XLR"
};
int num_items;
switch (rme32->pci->device) {
case PCI_DEVICE_ID_RME_DIGI32:
case PCI_DEVICE_ID_RME_DIGI32_8:
num_items = 3;
break;
case PCI_DEVICE_ID_RME_DIGI32_PRO:
num_items = 4;
break;
default:
snd_BUG();
return -EINVAL;
}
return snd_ctl_enum_info(uinfo, 1, num_items, texts);
}
static int
snd_rme32_get_inputtype_control(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
unsigned int items = 3;
spin_lock_irq(&rme32->lock);
ucontrol->value.enumerated.item[0] = snd_rme32_getinputtype(rme32);
switch (rme32->pci->device) {
case PCI_DEVICE_ID_RME_DIGI32:
case PCI_DEVICE_ID_RME_DIGI32_8:
items = 3;
break;
case PCI_DEVICE_ID_RME_DIGI32_PRO:
items = 4;
break;
default:
snd_BUG();
break;
}
if (ucontrol->value.enumerated.item[0] >= items) {
ucontrol->value.enumerated.item[0] = items - 1;
}
spin_unlock_irq(&rme32->lock);
return 0;
}
static int
snd_rme32_put_inputtype_control(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
unsigned int val;
int change, items = 3;
switch (rme32->pci->device) {
case PCI_DEVICE_ID_RME_DIGI32:
case PCI_DEVICE_ID_RME_DIGI32_8:
items = 3;
break;
case PCI_DEVICE_ID_RME_DIGI32_PRO:
items = 4;
break;
default:
snd_BUG();
break;
}
val = ucontrol->value.enumerated.item[0] % items;
spin_lock_irq(&rme32->lock);
change = val != (unsigned int)snd_rme32_getinputtype(rme32);
snd_rme32_setinputtype(rme32, val);
spin_unlock_irq(&rme32->lock);
return change;
}
static int
snd_rme32_info_clockmode_control(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
static const char * const texts[4] = { "AutoSync",
"Internal 32.0kHz",
"Internal 44.1kHz",
"Internal 48.0kHz" };
return snd_ctl_enum_info(uinfo, 1, 4, texts);
}
static int
snd_rme32_get_clockmode_control(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
spin_lock_irq(&rme32->lock);
ucontrol->value.enumerated.item[0] = snd_rme32_getclockmode(rme32);
spin_unlock_irq(&rme32->lock);
return 0;
}
static int
snd_rme32_put_clockmode_control(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
unsigned int val;
int change;
val = ucontrol->value.enumerated.item[0] % 3;
spin_lock_irq(&rme32->lock);
change = val != (unsigned int)snd_rme32_getclockmode(rme32);
snd_rme32_setclockmode(rme32, val);
spin_unlock_irq(&rme32->lock);
return change;
}
static u32 snd_rme32_convert_from_aes(struct snd_aes_iec958 * aes)
{
u32 val = 0;
val |= (aes->status[0] & IEC958_AES0_PROFESSIONAL) ? RME32_WCR_PRO : 0;
if (val & RME32_WCR_PRO)
val |= (aes->status[0] & IEC958_AES0_PRO_EMPHASIS_5015) ? RME32_WCR_EMP : 0;
else
val |= (aes->status[0] & IEC958_AES0_CON_EMPHASIS_5015) ? RME32_WCR_EMP : 0;
return val;
}
static void snd_rme32_convert_to_aes(struct snd_aes_iec958 * aes, u32 val)
{
aes->status[0] = ((val & RME32_WCR_PRO) ? IEC958_AES0_PROFESSIONAL : 0);
if (val & RME32_WCR_PRO)
aes->status[0] |= (val & RME32_WCR_EMP) ? IEC958_AES0_PRO_EMPHASIS_5015 : 0;
else
aes->status[0] |= (val & RME32_WCR_EMP) ? IEC958_AES0_CON_EMPHASIS_5015 : 0;
}
static int snd_rme32_control_spdif_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
uinfo->count = 1;
return 0;
}
static int snd_rme32_control_spdif_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
snd_rme32_convert_to_aes(&ucontrol->value.iec958,
rme32->wcreg_spdif);
return 0;
}
static int snd_rme32_control_spdif_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
int change;
u32 val;
val = snd_rme32_convert_from_aes(&ucontrol->value.iec958);
spin_lock_irq(&rme32->lock);
change = val != rme32->wcreg_spdif;
rme32->wcreg_spdif = val;
spin_unlock_irq(&rme32->lock);
return change;
}
static int snd_rme32_control_spdif_stream_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
uinfo->count = 1;
return 0;
}
static int snd_rme32_control_spdif_stream_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *
ucontrol)
{
struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
snd_rme32_convert_to_aes(&ucontrol->value.iec958,
rme32->wcreg_spdif_stream);
return 0;
}
static int snd_rme32_control_spdif_stream_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *
ucontrol)
{
struct rme32 *rme32 = snd_kcontrol_chip(kcontrol);
int change;
u32 val;
val = snd_rme32_convert_from_aes(&ucontrol->value.iec958);
spin_lock_irq(&rme32->lock);
change = val != rme32->wcreg_spdif_stream;
rme32->wcreg_spdif_stream = val;
rme32->wcreg &= ~(RME32_WCR_PRO | RME32_WCR_EMP);
rme32->wcreg |= val;
writel(rme32->wcreg, rme32->iobase + RME32_IO_CONTROL_REGISTER);
spin_unlock_irq(&rme32->lock);
return change;
}
static int snd_rme32_control_spdif_mask_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
uinfo->count = 1;
return 0;
}
static int snd_rme32_control_spdif_mask_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *
ucontrol)
{
ucontrol->value.iec958.status[0] = kcontrol->private_value;
return 0;
}
static const struct snd_kcontrol_new snd_rme32_controls[] = {
{
.iface = SNDRV_CTL_ELEM_IFACE_PCM,
.name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT),
.info = snd_rme32_control_spdif_info,
.get = snd_rme32_control_spdif_get,
.put = snd_rme32_control_spdif_put
},
{
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_INACTIVE,
.iface = SNDRV_CTL_ELEM_IFACE_PCM,
.name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, PCM_STREAM),
.info = snd_rme32_control_spdif_stream_info,
.get = snd_rme32_control_spdif_stream_get,
.put = snd_rme32_control_spdif_stream_put
},
{
.access = SNDRV_CTL_ELEM_ACCESS_READ,
.iface = SNDRV_CTL_ELEM_IFACE_PCM,
.name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, CON_MASK),
.info = snd_rme32_control_spdif_mask_info,
.get = snd_rme32_control_spdif_mask_get,
.private_value = IEC958_AES0_PROFESSIONAL | IEC958_AES0_CON_EMPHASIS
},
{
.access = SNDRV_CTL_ELEM_ACCESS_READ,
.iface = SNDRV_CTL_ELEM_IFACE_PCM,
.name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, PRO_MASK),
.info = snd_rme32_control_spdif_mask_info,
.get = snd_rme32_control_spdif_mask_get,
.private_value = IEC958_AES0_PROFESSIONAL | IEC958_AES0_PRO_EMPHASIS
},
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Input Connector",
.info = snd_rme32_info_inputtype_control,
.get = snd_rme32_get_inputtype_control,
.put = snd_rme32_put_inputtype_control
},
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Loopback Input",
.info = snd_rme32_info_loopback_control,
.get = snd_rme32_get_loopback_control,
.put = snd_rme32_put_loopback_control
},
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Sample Clock Source",
.info = snd_rme32_info_clockmode_control,
.get = snd_rme32_get_clockmode_control,
.put = snd_rme32_put_clockmode_control
}
};
static int snd_rme32_create_switches(struct snd_card *card, struct rme32 * rme32)
{
int idx, err;
struct snd_kcontrol *kctl;
for (idx = 0; idx < (int)ARRAY_SIZE(snd_rme32_controls); idx++) {
kctl = snd_ctl_new1(&snd_rme32_controls[idx], rme32);
err = snd_ctl_add(card, kctl);
if (err < 0)
return err;
if (idx == 1) /* IEC958 (S/PDIF) Stream */
rme32->spdif_ctl = kctl;
}
return 0;
}
/*
* Card initialisation
*/
static void snd_rme32_card_free(struct snd_card *card)
{
snd_rme32_free(card->private_data);
}
static int
__snd_rme32_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
{
static int dev;
struct rme32 *rme32;
struct snd_card *card;
int err;
if (dev >= SNDRV_CARDS) {
return -ENODEV;
}
if (!enable[dev]) {
dev++;
return -ENOENT;
}
err = snd_devm_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
sizeof(*rme32), &card);
if (err < 0)
return err;
card->private_free = snd_rme32_card_free;
rme32 = (struct rme32 *) card->private_data;
rme32->card = card;
rme32->pci = pci;
if (fullduplex[dev])
rme32->fullduplex_mode = 1;
err = snd_rme32_create(rme32);
if (err < 0)
return err;
strcpy(card->driver, "Digi32");
switch (rme32->pci->device) {
case PCI_DEVICE_ID_RME_DIGI32:
strcpy(card->shortname, "RME Digi32");
break;
case PCI_DEVICE_ID_RME_DIGI32_8:
strcpy(card->shortname, "RME Digi32/8");
break;
case PCI_DEVICE_ID_RME_DIGI32_PRO:
strcpy(card->shortname, "RME Digi32 PRO");
break;
}
sprintf(card->longname, "%s (Rev. %d) at 0x%lx, irq %d",
card->shortname, rme32->rev, rme32->port, rme32->irq);
err = snd_card_register(card);
if (err < 0)
return err;
pci_set_drvdata(pci, card);
dev++;
return 0;
}
static int
snd_rme32_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
{
return snd_card_free_on_error(&pci->dev, __snd_rme32_probe(pci, pci_id));
}
static struct pci_driver rme32_driver = {
.name = KBUILD_MODNAME,
.id_table = snd_rme32_ids,
.probe = snd_rme32_probe,
};
module_pci_driver(rme32_driver);
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