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Message-ID: <9e8c7612-d72e-00cc-ff7b-1d96568e447b@gmail.com>
Date: Mon, 18 Sep 2023 22:03:52 +0400
From: Ivan Orlov <ivan.orlov0322@...il.com>
To: perex@...ex.cz, tiwai@...e.com, corbet@....net
Cc: alsa-devel@...a-project.org, linux-doc@...r.kernel.org,
linux-kernel@...r.kernel.org, gregkh@...uxfoundation.org
Subject: Re: [PATCH 2/2] ALSA: Add new driver for Marian M2 sound card
On 9/18/23 22:00, Ivan Orlov wrote:
> The original driver was written by Florian Faber in 2012. This patch
> represents the updated version of the original driver.
>
> List of updates since the initial driver version:
> - Update deprecated API calls, so it could be sent upstream
> - Fix codestyle issues
> - Fix memory allocation issues
> - Add locking
> - Remove support for other models of Marian sound cards, which I was
> unable to test and which are not documented anywhere.
>
> Despite lacking of special equipment required for recording and playing
> MIDI/MADI, I was able to test the driver and fix some issues using the
> integrated and external loopbacks. Now the driver seems to work well.
>
> Signed-off-by: Ivan Orlov <ivan.orlov0322@...il.com>
> ---
> Documentation/sound/cards/marian-m2.rst | 6 +-
> MAINTAINERS | 7 +
> sound/pci/Kconfig | 10 +
> sound/pci/Makefile | 2 +
> sound/pci/marianm2.c | 1785 +++++++++++++++++++++++
> 5 files changed, 1807 insertions(+), 3 deletions(-)
> create mode 100644 sound/pci/marianm2.c
>
> diff --git a/Documentation/sound/cards/marian-m2.rst b/Documentation/sound/cards/marian-m2.rst
> index a968feea79c0..5de7d6c8967a 100644
> --- a/Documentation/sound/cards/marian-m2.rst
> +++ b/Documentation/sound/cards/marian-m2.rst
> @@ -11,14 +11,14 @@ Ivan Orlov <ivan.orlov0322@...il.com>
> STATE OF DEVELOPMENT
> ====================
>
> -This driver is based on initial driver written by Florian Faber in 2012, which seemed to work fine.
> +This driver is based on the driver written by Florian Faber in 2012, which seemed to work fine.
> However, the initial code contained multiple issues, which had to be solved before sending the
> driver upstream.
>
> The vendor lost the full documentation, so what we have here was recovered from drafts and found
> after experiments with the card.
>
> -What seems to be working fine:
> +What seems to work fine:
> - Playback and capture for all supported rates
> - Integrated loopback (with some exceptions, see below)
>
> @@ -95,7 +95,7 @@ Loopback
> Loopback
> ========
>
> -The card contains integrated loopback. When it is enabled, it sets the hardware’s DAW-in memory pointer
> +The card contains an integrated loopback. When it is enabled, it sets the hardware’s DAW-in memory pointer
> to the hardware’s DAW-out memory. So, what you play is what you record.
>
> You can enable the integrated loopback using the corresponding control.
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 90f13281d297..1e04a6c25a55 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -12621,6 +12621,13 @@ L: linux-mips@...r.kernel.org
> S: Maintained
> F: arch/mips/boot/dts/img/pistachio*
>
> +MARIAN SERAPH M2 SOUND CARD DRIVER
> +M: Ivan Orlov <ivan.orlov0322@...il.com>
> +L: alsa-devel@...a-project.org (moderated for non-subscribers)
> +S: Maintained
> +F: Documentation/sound/cards/marian-m2.rst
> +F: sound/pci/marianm2.c
> +
> MARVELL 88E6XXX ETHERNET SWITCH FABRIC DRIVER
> M: Andrew Lunn <andrew@...n.ch>
> L: netdev@...r.kernel.org
> diff --git a/sound/pci/Kconfig b/sound/pci/Kconfig
> index 787868c9e91b..e3dad79743e5 100644
> --- a/sound/pci/Kconfig
> +++ b/sound/pci/Kconfig
> @@ -222,6 +222,16 @@ config SND_CMIPCI
> To compile this driver as a module, choose M here: the module
> will be called snd-cmipci.
>
> +config SND_MARIANM2
> + tristate "MARIAN Seraph M2"
> + select SND_PCM
> + help
> + Say Y to include support for MARIAN Seraph M2 sound card
> + <file:Documentation/sound/cards/marian-m2.rst>.
> +
> + To compile this driver as a module, choose M here: the module
> + will be called snd-marianm2
> +
> config SND_OXYGEN_LIB
> tristate
>
> diff --git a/sound/pci/Makefile b/sound/pci/Makefile
> index 04cac7469139..4d2f52c98a74 100644
> --- a/sound/pci/Makefile
> +++ b/sound/pci/Makefile
> @@ -22,6 +22,7 @@ snd-fm801-objs := fm801.o
> snd-intel8x0-objs := intel8x0.o
> snd-intel8x0m-objs := intel8x0m.o
> snd-maestro3-objs := maestro3.o
> +snd-marianm2-objs := marianm2.o
> snd-rme32-objs := rme32.o
> snd-rme96-objs := rme96.o
> snd-sis7019-objs := sis7019.o
> @@ -48,6 +49,7 @@ obj-$(CONFIG_SND_FM801) += snd-fm801.o
> obj-$(CONFIG_SND_INTEL8X0) += snd-intel8x0.o
> obj-$(CONFIG_SND_INTEL8X0M) += snd-intel8x0m.o
> obj-$(CONFIG_SND_MAESTRO3) += snd-maestro3.o
> +obj-$(CONFIG_SND_MARIANM2) += snd-marianm2.o
> obj-$(CONFIG_SND_RME32) += snd-rme32.o
> obj-$(CONFIG_SND_RME96) += snd-rme96.o
> obj-$(CONFIG_SND_SIS7019) += snd-sis7019.o
> diff --git a/sound/pci/marianm2.c b/sound/pci/marianm2.c
> new file mode 100644
> index 000000000000..1ffa47cded3f
> --- /dev/null
> +++ b/sound/pci/marianm2.c
> @@ -0,0 +1,1785 @@
> +// SPDX-License-Identifier: GPL-2.0-only
> +/*
> + * ALSA driver for MARIAN Seraph audio interfaces
> + *
> + * Copyright (c) 2012 Florian Faber <faberman@...uxproaudio.org>,
> + * 2023 Ivan Orlov <ivan.orlov0322@...il.com>
> + */
> +
> +#include <sound/core.h>
> +#include <sound/control.h>
> +#include <sound/pcm.h>
> +#include <sound/pcm_params.h>
> +#include <sound/core.h>
> +#include <sound/pcm.h>
> +#include <sound/initval.h>
> +#include <sound/info.h>
> +#include <linux/delay.h>
> +#include <linux/module.h>
> +#include <linux/pci.h>
> +#include <linux/interrupt.h>
> +
> +#define DEBUG
> +
> +#define M2_CHANNELS_COUNT 128
> +
> +#define M2_FRAME_SIZE (M2_CHANNELS_COUNT * 4)
> +#define SUBSTREAM_PERIOD_SIZE (2048 * M2_FRAME_SIZE)
> +#define SUBSTREAM_BUF_SIZE (2 * SUBSTREAM_PERIOD_SIZE)
> +
> +#define SERAPH_RD_IRQ_STATUS 0x00
> +#define SERAPH_RD_HWPOINTER 0x8C
> +
> +#define SERAPH_WR_DMA_ADR 0x04
> +#define SERAPH_WR_ENABLE_CAPTURE 0x08
> +#define SERAPH_WR_ENABLE_PLAYBACK 0x0C
> +#define SERAPH_WR_DMA_BLOCKS 0x10
> +
> +#define M2_DISABLE_PLAY_IRQ BIT(1)
> +#define M2_DISABLE_CAPT_IRQ BIT(2)
> +#define M2_ENABLE_LOOPBACK BIT(3)
> +#define SERAPH_WR_DMA_ENABLE 0x84
> +#define SERAPH_WR_IE_ENABLE 0xAC
> +
> +#define PCI_VENDOR_ID_MARIAN 0x1382
> +#define PCI_DEVICE_ID_MARIAN_SERAPH_M2 0x5021
> +
> +#define RATE_SLOW 54000
> +#define RATE_FAST 108000
> +
> +#define SPEEDMODE_SLOW 1
> +#define SPEEDMODE_FAST 2
> +
> +#define MARIAN_PORTS_TYPE_INPUT 0
> +#define MARIAN_PORTS_TYPE_OUTPUT 1
> +
> +#define MARIAN_SPI_CLOCK_DIVIDER 0x74
> +
> +#define ERR_DEAD_WRITE BIT(0)
> +#define ERR_DEAD_READ BIT(1)
> +#define ERR_DATA_LOST BIT(2)
> +#define ERR_PAGE_CONF BIT(3)
> +#define ERR_INT_PLAY BIT(10)
> +#define ERR_INT_REC BIT(13)
> +
> +#define STATUS_ST_READY BIT(4)
> +#define STATUS_INT_PLAY BIT(8)
> +#define STATUS_INT_PPLAY BIT(9)
> +#define STATUS_INT_REC BIT(11)
> +#define STATUS_INT_PREC BIT(12)
> +#define STATUS_INT_PREP BIT(14)
> +#define WCLOCK_NEW_VAL BIT(31)
> +#define SPI_ALL_READY BIT(31)
> +
> +#define M2_CLOCK_SRC_CNT 4
> +#define M2_CLOCK_SRC_DCO 1
> +#define M2_CLOCK_SRC_SYNCBUS 2
> +#define M2_CLOCK_SRC_MADI1 4
> +#define M2_CLOCK_SRC_MADI2 5
> +
> +#define M2_SYNC_STATE_CNT 3
> +#define M2_CHNL_MODE_CNT 2
> +#define M2_FRAME_MODE_CNT 2
> +
> +#define M2_INP1_SYNC_CTL_ID 0
> +#define M2_INP1_CM_CTL_ID 0
> +#define M2_INP1_FM_CTL_ID 0
> +#define M2_INP1_FREQ_CTL_ID 4
> +#define M2_OUT1_CM_CTL_ID 0
> +#define M2_OUT1_FM_CTL_ID 0
> +#define M2_INP2_SYNC_CTL_ID 1
> +#define M2_INP2_CM_CTL_ID 1
> +#define M2_INP2_FM_CTL_ID 1
> +#define M2_INP2_FREQ_CTL_ID 5
> +#define M2_OUT2_CM_CTL_ID 1
> +#define M2_OUT2_FM_CTL_ID 1
> +
> +// MADI FPGA register 0x40
> +// Use internal (=0) or external PLL (=1)
> +#define M2_PLL 2
> +
> +// MADI FPGA register 0x41
> +// Enable both MADI transmitters (=1)
> +#define M2_TX_ENABLE 0
> +// Use int (=0) or 32bit IEEE float (=1)
> +#define M2_INT_FLOAT 4
> +// Big endian (=0), little endian (=1)
> +#define M2_ENDIANNESS 5
> +// MSB first (=0), LSB first (=1)
> +#define M2_BIT_ORDER 6
> +
> +// MADI FPGA register 0x42
> +// Send 56ch (=0) or 64ch (=1) MADI frames
> +#define M2_PORT1_MODE 0
> +// Send 48kHz (=0) or 96kHz (=1) MADI frames
> +#define M2_PORT1_FRAME 1
> +// Send 56ch (=0) or 64ch (=1) MADI frames
> +#define M2_PORT2_MODE 2
> +// Send 48kHz (=0) or 96kHz (=1) MADI frames
> +#define M2_PORT2_FRAME 3
> +
> +struct marian_card_descriptor;
> +struct marian_card;
> +
> +struct marian_card_descriptor {
> + char *name;
> + char *port_names;
> + unsigned int speedmode_max;
> + unsigned int ch_in;
> + unsigned int ch_out;
> + unsigned int midi_in;
> + unsigned int midi_out;
> + unsigned int serial_in;
> + unsigned int serial_out;
> + unsigned int wck_in;
> + unsigned int wck_out;
> +
> + unsigned int dma_bufsize;
> +
> + void (*hw_constraints_func)(struct marian_card *marian,
> + struct snd_pcm_substream *substream,
> + struct snd_pcm_hw_params *params);
> + /* custom function to set up ALSA controls */
> + void (*create_controls)(struct marian_card *marian);
> + /* init is called after probing the card */
> + int (*init_card)(struct marian_card *marian);
> + void (*free_card)(struct marian_card *marian);
> + /* prepare is called when ALSA is opening the card */
> + void (*prepare)(struct marian_card *marian);
> + void (*set_speedmode)(struct marian_card *marian, unsigned int speedmode);
> + void (*proc_status)(struct marian_card *marian, struct snd_info_buffer *buffer);
> + void (*proc_ports)(struct marian_card *marian, struct snd_info_buffer *buffer,
> + unsigned int type);
> +
> + struct snd_pcm_hardware info_playback;
> + struct snd_pcm_hardware info_capture;
> +};
> +
> +struct marian_card {
> + struct marian_card_descriptor *desc;
> +
> + struct snd_pcm_substream *playback_substream;
> + struct snd_pcm_substream *capture_substream;
> +
> + struct snd_card *card;
> + struct snd_pcm *pcm;
> + struct snd_dma_buffer dmabuf;
> +
> + struct snd_dma_buffer playback_buf;
> + struct snd_dma_buffer capture_buf;
> +
> + struct pci_dev *pci;
> + unsigned long port;
> + void __iomem *iobase;
> + int irq;
> +
> + unsigned int idx;
> +
> + /* hardware registers lock */
> + spinlock_t reglock;
> +
> + /* spinlock for SPI communication */
> + spinlock_t spi_lock;
> +
> + /* mutex for frequency measurement */
> + struct mutex freq_mutex;
> +
> + /* Enables or disables hardware loopback */
> + int loopback;
> +
> + unsigned int stream_open;
> +
> + /* speed mode: 1, 2, 4 times FS */
> + unsigned int speedmode;
> +
> + /* 0..15, meaning depending on the card type */
> + unsigned int clock_source;
> +
> + /* Frequency of the internal oscillator (Hertz) */
> + unsigned int dco;
> + /* [0..1) part of the internal oscillator frequency (milli Hertz) */
> + unsigned int dco_millis;
> +
> + /* [-200 .. 200] Two semitone 'musical' adjustment */
> + int detune;
> +
> + /* WCK input termination on (1)/off (0) */
> + unsigned int wck_term;
> +
> + /* WCK output source */
> + unsigned int wck_output;
> +
> + void *card_specific;
> +};
> +
> +enum CLOCK_SOURCE {
> + CLOCK_SRC_INTERNAL = 0,
> + CLOCK_SRC_SYNCBUS = 1,
> + CLOCK_SRC_INP1 = 2,
> + CLOCK_SRC_INP2 = 3,
> + CLOCK_SRC_INP3 = 4,
> +};
> +
> +enum m2_num_mode {
> + M2_NUM_MODE_INT = 0,
> + M2_NUM_MODE_FLOAT = 1,
> +};
> +
> +enum m2_endianness_mode {
> + M2_BE = 0,
> + M2_LE = 1,
> +};
> +
> +struct m2_specific {
> + u8 shadow_40;
> + u8 shadow_41;
> + u8 shadow_42;
> + u8 frame;
> +};
> +
> +static const struct pci_device_id snd_marian_ids[] = {
> + {PCI_DEVICE(PCI_VENDOR_ID_MARIAN, PCI_DEVICE_ID_MARIAN_SERAPH_M2), 0, 0, 6},
> + { }
> +};
> +
> +MODULE_DEVICE_TABLE(pci, snd_marian_ids);
> +
> +static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; // Index 0-MAX
> +static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; // ID for this card
> +
> +module_param_array(index, int, NULL, 0444);
> +MODULE_PARM_DESC(index, "Index value for MARIAN PCI soundcard");
> +module_param_array(id, charp, NULL, 0444);
> +MODULE_PARM_DESC(id, "ID string for MARIAN PCI soundcard");
> +
> +static void snd_marian_card_free(struct snd_card *card)
> +{
> + struct marian_card *marian = card->private_data;
> +
> + if (!marian)
> + return;
> +
> + snd_dma_free_pages(&marian->dmabuf);
> +
> + if (marian->irq >= 0)
> + free_irq(marian->irq, (void *)marian);
> +
> + if (marian->iobase)
> + pci_iounmap(marian->pci, marian->iobase);
> +
> + if (marian->port)
> + pci_release_regions(marian->pci);
> +
> + pci_disable_device(marian->pci);
> +}
> +
> +static void marian_proc_status_generic(struct marian_card *marian, struct snd_info_buffer *buffer)
> +{
> + snd_iprintf(buffer, "*** Card registers\n");
> + snd_iprintf(buffer, "RD 0x064: %08x (SPI bits written)\n", readl(marian->iobase + 0x64));
> + snd_iprintf(buffer, "RD 0x068: %08x (SPI bits read)\n", readl(marian->iobase + 0x68));
> + snd_iprintf(buffer, "RD 0x070: %08x (SPI bits status)\n", readl(marian->iobase + 0x70));
> + snd_iprintf(buffer, "RD 0x088: %08x (Super clock measurement)\n",
> + readl(marian->iobase + 0x88));
> + snd_iprintf(buffer, "RD 0x08C: %08x (HW Pointer)\n",
> + readl(marian->iobase + SERAPH_RD_HWPOINTER));
> + snd_iprintf(buffer, "RD 0x094: %08x (Word clock measurement)\n",
> + readl(marian->iobase + 0x88));
> + snd_iprintf(buffer, "RD 0x0F8: %08x (Extension board)\n",
> + readl(marian->iobase + 0xF8));
> + snd_iprintf(buffer, "RD 0x244: %08x (DMA debug)\n",
> + readl(marian->iobase + 0x244));
> +
> + snd_iprintf(buffer, "\n*** Card status\n");
> + snd_iprintf(buffer, "Firmware build: %08x\n", readl(marian->iobase + 0xFC));
> + snd_iprintf(buffer, "Speed mode : %uFS (1..%u)\n",
> + marian->speedmode, marian->desc->speedmode_max);
> + snd_iprintf(buffer, "Clock master : %s\n", (marian->clock_source == 1) ? "yes" : "no");
> + snd_iprintf(buffer, "DCO frequency: %d.%d Hz\n", marian->dco, marian->dco_millis);
> + snd_iprintf(buffer, "DCO detune : %d Cent\n", marian->detune);
> +}
> +
> +static void snd_marian_proc_status(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
> +{
> + struct marian_card *marian = entry->private_data;
> +
> + if (marian->desc->proc_status)
> + marian->desc->proc_status(marian, buffer);
> + else
> + marian_proc_status_generic(marian, buffer);
> +}
> +
> +/*
> + * Default port name function, outputs the static string
> + * port_names of the card descriptor regardless of current
> + * speed mode and whether input or output ports are requested.
> + */
> +static void marian_proc_ports_generic(struct marian_card *marian, struct snd_info_buffer *buffer,
> + unsigned int type)
> +{
> + snd_iprintf(buffer, marian->desc->port_names);
> +}
> +
> +static void snd_marian_proc_ports_in(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
> +{
> + struct marian_card *marian = entry->private_data;
> +
> + snd_iprintf(buffer, "# generated by MARIAN Seraph driver\n");
> + if (marian->desc->proc_ports)
> + marian->desc->proc_ports(marian, buffer, MARIAN_PORTS_TYPE_INPUT);
> + else
> + marian_proc_ports_generic(marian, buffer, MARIAN_PORTS_TYPE_INPUT);
> +}
> +
> +static void snd_marian_proc_ports_out(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
> +{
> + struct marian_card *marian = entry->private_data;
> +
> + snd_iprintf(buffer, "# generated by MARIAN Seraph driver\n");
> + if (marian->desc->proc_ports)
> + marian->desc->proc_ports(marian, buffer, MARIAN_PORTS_TYPE_OUTPUT);
> + else
> + marian_proc_ports_generic(marian, buffer, MARIAN_PORTS_TYPE_OUTPUT);
> +}
> +
> +static irqreturn_t snd_marian_interrupt(int irq, void *dev_id)
> +{
> + struct marian_card *marian = (struct marian_card *)dev_id;
> + unsigned int irq_status;
> +
> + irq_status = readl(marian->iobase + SERAPH_RD_IRQ_STATUS);
> +
> + if (irq_status & 0x00004800) {
> + if (marian->playback_substream)
> + snd_pcm_period_elapsed(marian->playback_substream);
> +
> + if (marian->capture_substream)
> + snd_pcm_period_elapsed(marian->capture_substream);
> +
> + return IRQ_HANDLED;
> + }
> +
> + return IRQ_NONE;
> +}
> +
> +static int snd_marian_playback_open(struct snd_pcm_substream *substream)
> +{
> + struct marian_card *marian = substream->private_data;
> +
> + substream->runtime->hw = marian->desc->info_playback;
> +
> + marian->playback_substream = substream;
> +
> + snd_pcm_set_sync(substream);
> +
> + return 0;
> +}
> +
> +static int snd_marian_capture_open(struct snd_pcm_substream *substream)
> +{
> + struct marian_card *marian = substream->private_data;
> +
> + substream->runtime->hw = marian->desc->info_capture;
> +
> + marian->capture_substream = substream;
> +
> + snd_pcm_set_sync(substream);
> +
> + return 0;
> +}
> +
> +static int snd_marian_capture_release(struct snd_pcm_substream *substream)
> +{
> + struct marian_card *marian = snd_pcm_substream_chip(substream);
> +
> + marian->capture_substream = NULL;
> +
> + return 0;
> +}
> +
> +static int snd_marian_playback_release(struct snd_pcm_substream *substream)
> +{
> + struct marian_card *marian = snd_pcm_substream_chip(substream);
> +
> + marian->playback_substream = NULL;
> +
> + return 0;
> +}
> +
> +static void marian_generic_set_dco(struct marian_card *marian, unsigned int freq,
> + unsigned int millis)
> +{
> + u64 val, v2;
> + s64 detune;
> +
> + val = (freq * 1000 + millis) * marian->speedmode;
> + val <<= 36;
> +
> + if (marian->detune != 0) {
> + /*
> + * DCO detune active
> + * this calculation takes a bit of a shortcut
> + * - should be implemented using a logarithmic scale
> + */
> + detune = marian->detune * 100;
> + v2 = val;
> + div_u64(v2, 138564);
> + detune *= v2;
> + val += detune;
> + }
> +
> + val = div_u64(val, 80000000);
> + val = div_u64(val, 1000);
> +
> + writel((u32)val, marian->iobase + 0x88);
> +
> + marian->dco = freq;
> + marian->dco_millis = millis;
> +}
> +
> +static void marian_generic_set_speedmode(struct marian_card *marian, unsigned int speedmode)
> +{
> + if (speedmode > marian->desc->speedmode_max)
> + return;
> +
> + switch (speedmode) {
> + case SPEEDMODE_SLOW:
> + writel(0x03, marian->iobase + 0x80);
> + writel(0x00, marian->iobase + 0x8C); // for 48kHz in 1FS mode
> + marian->speedmode = SPEEDMODE_SLOW;
> + break;
> + case SPEEDMODE_FAST:
> + writel(0x03, marian->iobase + 0x80);
> + writel(0x01, marian->iobase + 0x8C); // for 96kHz in 2FS mode
> + marian->speedmode = SPEEDMODE_FAST;
> + break;
> + }
> +
> + marian_generic_set_dco(marian, marian->dco, marian->dco_millis);
> +}
> +
> +static int snd_marian_hw_params(struct snd_pcm_substream *substream,
> + struct snd_pcm_hw_params *params)
> +{
> + struct marian_card *marian = snd_pcm_substream_chip(substream);
> + unsigned int speedmode;
> + int buffer_frames;
> +
> + buffer_frames = SUBSTREAM_BUF_SIZE / M2_FRAME_SIZE;
> +
> + if (params_rate(params) < RATE_SLOW)
> + speedmode = SPEEDMODE_SLOW;
> + else if (params_rate(params) < RATE_FAST)
> + speedmode = SPEEDMODE_FAST;
> +
> + if (speedmode > marian->desc->speedmode_max) {
> + dev_err(marian->card->dev,
> + "Requested rate (%u Hz) higher than card's maximum\n",
> + params_rate(params));
> + _snd_pcm_hw_param_setempty(params, SNDRV_PCM_HW_PARAM_RATE);
> + return -EBUSY;
> + }
> +
> + spin_lock(&marian->reglock);
> + if (marian->desc->set_speedmode)
> + marian->desc->set_speedmode(marian, speedmode);
> + else
> + marian_generic_set_speedmode(marian, speedmode);
> +
> + marian->detune = 0;
> +
> + marian_generic_set_dco(marian, params_rate(params), 0);
> + spin_unlock(&marian->reglock);
> +
> + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
> + snd_pcm_set_runtime_buffer(substream, &marian->playback_buf);
> + else
> + snd_pcm_set_runtime_buffer(substream, &marian->capture_buf);
> +
> + // apply optional card specific hw constraints
> + if (marian->desc->hw_constraints_func)
> + marian->desc->hw_constraints_func(marian, substream, params);
> +
> + return 0;
> +}
> +
> +static int snd_marian_prepare(struct snd_pcm_substream *substream)
> +{
> + struct marian_card *marian = snd_pcm_substream_chip(substream);
> +
> + if (marian->desc->prepare)
> + marian->desc->prepare(marian);
> +
> + return 0;
> +}
> +
> +static void marian_silence(struct marian_card *marian)
> +{
> + memset(marian->dmabuf.area, 0, marian->dmabuf.bytes);
> +}
> +
> +// atomic by default, no need for locking here
> +static int snd_marian_trigger(struct snd_pcm_substream *substream, int cmd)
> +{
> + struct marian_card *marian = snd_pcm_substream_chip(substream);
> + int irq_flags;
> +
> + switch (cmd) {
> + case SNDRV_PCM_TRIGGER_START:
> + irq_flags = M2_DISABLE_PLAY_IRQ;
> + if (marian->loopback)
> + irq_flags |= M2_ENABLE_LOOPBACK;
> +
> + marian_silence(marian);
> + writel(0x3, marian->iobase + SERAPH_WR_DMA_ENABLE);
> + writel(irq_flags, marian->iobase + SERAPH_WR_IE_ENABLE);
> + break;
> + case SNDRV_PCM_TRIGGER_STOP:
> + irq_flags = M2_DISABLE_PLAY_IRQ | M2_DISABLE_CAPT_IRQ;
> + writel(irq_flags, marian->iobase + SERAPH_WR_IE_ENABLE);
> + writel(0x0, marian->iobase + SERAPH_WR_DMA_ENABLE);
> + marian_silence(marian);
> +
> + // unarm channels to inhibit playback from the FPGA's internal buffer
> + writel(0, marian->iobase + 0x08);
> + writel(0, marian->iobase + 0x0C);
> + writel(0, marian->iobase + 0x20);
> + writel(0, marian->iobase + 0x24);
> + writel(0, marian->iobase + 0x28);
> + writel(0, marian->iobase + 0x2C);
> + writel(0, marian->iobase + 0x30);
> + writel(0, marian->iobase + 0x34);
> + writel(0, marian->iobase + 0x38);
> + writel(0, marian->iobase + 0x3C);
> + break;
> + default:
> + return -EINVAL;
> + }
> +
> + return 0;
> +}
> +
> +static snd_pcm_uframes_t snd_marian_hw_pointer(struct snd_pcm_substream *substream)
> +{
> + struct marian_card *marian = snd_pcm_substream_chip(substream);
> +
> + return readl(marian->iobase + SERAPH_RD_HWPOINTER);
> +}
> +
> +static int snd_marian_mmap(struct snd_pcm_substream *substream, struct vm_area_struct *vma)
> +{
> + struct marian_card *marian = snd_pcm_substream_chip(substream);
> +
> + if (remap_pfn_range(vma, vma->vm_start, substream->runtime->dma_addr >> PAGE_SHIFT,
> + vma->vm_end - vma->vm_start, vma->vm_page_prot) < 0) {
> + dev_err(marian->card->dev, "remap_pfn_range failed\n");
> + return -EIO;
> + }
> +
> + return 0;
> +}
> +
> +static const struct snd_pcm_ops snd_marian_playback_ops = {
> + .open = snd_marian_playback_open,
> + .close = snd_marian_playback_release,
> + .hw_params = snd_marian_hw_params,
> + .prepare = snd_marian_prepare,
> + .trigger = snd_marian_trigger,
> + .pointer = snd_marian_hw_pointer,
> + .mmap = snd_marian_mmap,
> +};
> +
> +static const struct snd_pcm_ops snd_marian_capture_ops = {
> + .open = snd_marian_capture_open,
> + .close = snd_marian_capture_release,
> + .hw_params = snd_marian_hw_params,
> + .prepare = snd_marian_prepare,
> + .trigger = snd_marian_trigger,
> + .pointer = snd_marian_hw_pointer,
> + .mmap = snd_marian_mmap,
> +};
> +
> +static void marian_generic_set_clock_source(struct marian_card *marian, u8 source)
> +{
> + spin_lock(&marian->reglock);
> + writel(source, marian->iobase + 0x90);
> + marian->clock_source = source;
> + spin_unlock(&marian->reglock);
> +}
> +
> +static void marian_generic_init(struct marian_card *marian)
> +{
> + if (!marian->desc->set_speedmode)
> + marian->desc->set_speedmode = marian_generic_set_speedmode;
> +
> + // reset DMA engine
> + writel(0x00000000, marian->iobase);
> +
> + // disable play interrupt
> + writel(M2_DISABLE_PLAY_IRQ, marian->iobase + SERAPH_WR_IE_ENABLE);
> +
> + // init clock mode
> + marian_generic_set_speedmode(marian, SPEEDMODE_SLOW);
> +
> + // init internal clock and set it as clock source
> + marian_generic_set_clock_source(marian, 1);
> +
> + // init SPI clock divider
> + writel(0x1F, marian->iobase + MARIAN_SPI_CLOCK_DIVIDER);
> +}
> +
> +static void construct_playback_buffer(struct marian_card *marian)
> +{
> + marian->playback_buf = marian->dmabuf;
> + marian->playback_buf.area += SUBSTREAM_BUF_SIZE;
> + marian->playback_buf.addr += SUBSTREAM_BUF_SIZE;
> + marian->playback_buf.bytes = SUBSTREAM_BUF_SIZE;
> +}
> +
> +static void construct_capture_buffer(struct marian_card *marian)
> +{
> + marian->capture_buf = marian->dmabuf;
> + marian->capture_buf.bytes = SUBSTREAM_BUF_SIZE;
> +}
> +
> +static int snd_marian_create(struct snd_card *card, struct pci_dev *pci,
> + struct marian_card_descriptor *desc, unsigned int idx)
> +{
> + struct snd_info_entry *entry;
> + struct marian_card *marian = card->private_data;
> + int err;
> + unsigned int len;
> +
> + marian->desc = desc;
> + marian->card = card;
> + marian->pcm = NULL;
> + marian->pci = pci;
> + marian->port = 0;
> + marian->iobase = NULL;
> + marian->irq = -1;
> + marian->idx = idx;
> + spin_lock_init(&marian->reglock);
> + spin_lock_init(&marian->spi_lock);
> + mutex_init(&marian->freq_mutex);
> +
> + err = pci_enable_device(pci);
> + if (err < 0)
> + return err;
> +
> + if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(32))) {
> + dev_err(&pci->dev, "Unable to set DMA mask\n");
> + return err;
> + }
> +
> + pci_set_master(pci);
> +
> + err = pci_request_regions(pci, "marian");
> + if (err < 0)
> + return err;
> +
> + marian->port = pci_resource_start(pci, 0);
> + len = pci_resource_len(pci, 0);
> + marian->iobase = pci_iomap(pci, 0, 0);
> + if (!marian->iobase) {
> + dev_err(&pci->dev, "unable to grab region 0x%lx-0x%lx\n",
> + marian->port, marian->port + len - 1);
> + return -EBUSY;
> + }
> +
> + if (request_irq(pci->irq, snd_marian_interrupt, IRQF_SHARED, "marian", marian)) {
> + dev_err(&pci->dev, "unable to grab IRQ %d\n", pci->irq);
> + return -EBUSY;
> + }
> + marian->irq = pci->irq;
> +
> + card->private_free = snd_marian_card_free;
> +
> + strscpy(card->driver, "MARIAN FPGA", sizeof(card->driver));
> + strscpy(card->shortname, marian->desc->name, sizeof(card->shortname));
> + sprintf(card->longname, "%s PCIe audio at 0x%lx, irq %d",
> + card->shortname, marian->port, marian->irq);
> +
> + snd_card_set_dev(card, &pci->dev);
> +
> + err = snd_pcm_new(card, desc->name, 0, 1, 1, &marian->pcm);
> + if (err < 0)
> + return err;
> + marian->pcm->private_data = marian;
> + snd_pcm_set_ops(marian->pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_marian_playback_ops);
> + snd_pcm_set_ops(marian->pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_marian_capture_ops);
> +
> + len = PAGE_ALIGN(desc->dma_bufsize);
> + err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_CONTINUOUS, &pci->dev,
> + desc->dma_bufsize, &marian->dmabuf);
> + if (err < 0) {
> + dev_err(card->dev, "Could not allocate %d Bytes (%d)\n", len, err);
> +
> + snd_dma_free_pages(&marian->dmabuf);
> + return err;
> + }
> +
> + writel((u32)marian->dmabuf.addr,
> + marian->iobase + SERAPH_WR_DMA_ADR);
> +
> + // Set 'block' count to buffer_frames/16 to set channel 'buffers' count (16 samples each)
> + writel(SUBSTREAM_BUF_SIZE / M2_FRAME_SIZE / 16, marian->iobase + SERAPH_WR_DMA_BLOCKS);
> +
> + construct_capture_buffer(marian);
> + construct_playback_buffer(marian);
> +
> + if (!snd_card_proc_new(card, "status", &entry))
> + snd_info_set_text_ops(entry, marian, snd_marian_proc_status);
> + if (!snd_card_proc_new(card, "ports.in", &entry))
> + snd_info_set_text_ops(entry, marian, snd_marian_proc_ports_in);
> + if (!snd_card_proc_new(card, "ports.out", &entry))
> + snd_info_set_text_ops(entry, marian, snd_marian_proc_ports_out);
> +
> + if (marian->desc->init_card)
> + marian->desc->init_card(marian);
> + else
> + marian_generic_init(marian);
> +
> + if (marian->desc->create_controls)
> + marian->desc->create_controls(marian);
> +
> + return snd_card_register(card);
> +}
> +
> +/*
> + * Measure the frequency of a clock source.
> + * The measurement is triggered and the FPGA's ready
> + * signal polled (normally takes up to 2ms). The measurement
> + * has only a certainty of 10-20Hz, this function rounds it up
> + * to the nearest 10Hz step (in 1FS).
> + */
> +static unsigned int marian_measure_freq(struct marian_card *marian, unsigned int source)
> +{
> + mutex_lock(&marian->freq_mutex);
> + u32 val;
> + int tries = 5;
> +
> + writel(source & 0x7, marian->iobase + 0xC8);
> +
> + while (tries > 0) {
> + val = readl(marian->iobase + 0x94);
> + if (val & WCLOCK_NEW_VAL)
> + break;
> +
> + usleep_range(1000, 1200);
> + tries--;
> + }
> +
> + mutex_unlock(&marian->freq_mutex);
> +
> + if (tries > 0)
> + return (((1280000000 / ((val & 0x3FFFF) + 1)) + 5 * marian->speedmode)
> + / (10 * marian->speedmode)) * 10 * marian->speedmode;
> +
> + return 0;
> +}
> +
> +static int marian_generic_frequency_info(struct snd_kcontrol *kcontrol,
> + struct snd_ctl_elem_info *uinfo)
> +{
> + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
> + uinfo->count = 1;
> + uinfo->value.integer.min = 27000;
> + uinfo->value.integer.max = 207000;
> + uinfo->value.integer.step = 1;
> + return 0;
> +}
> +
> +static int marian_generic_frequency_get(struct snd_kcontrol *kcontrol,
> + struct snd_ctl_elem_value *ucontrol)
> +{
> + struct marian_card *marian = snd_kcontrol_chip(kcontrol);
> +
> + ucontrol->value.integer.value[0] = marian_measure_freq(marian, kcontrol->private_value);
> + return 0;
> +}
> +
> +static int marian_generic_frequency_create(struct marian_card *marian, char *label, u32 idx)
> +{
> + struct snd_kcontrol_new c = {
> + .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
> + .name = label,
> + .private_value = idx,
> + .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
> + .info = marian_generic_frequency_info,
> + .get = marian_generic_frequency_get
> + };
> +
> + return snd_ctl_add(marian->card, snd_ctl_new1(&c, marian));
> +}
> +
> +static int marian_generic_dco_int_info(struct snd_kcontrol *kcontrol,
> + struct snd_ctl_elem_info *uinfo)
> +{
> + struct marian_card *marian = snd_kcontrol_chip(kcontrol);
> +
> + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
> + uinfo->count = 1;
> + if (marian->speedmode == SPEEDMODE_SLOW) {
> + uinfo->value.integer.min = 32000;
> + uinfo->value.integer.max = 54000;
> + }
> + uinfo->value.integer.step = 1;
> + return 0;
> +}
> +
> +static int marian_generic_dco_int_get(struct snd_kcontrol *kcontrol,
> + struct snd_ctl_elem_value *ucontrol)
> +{
> + struct marian_card *marian = snd_kcontrol_chip(kcontrol);
> +
> + ucontrol->value.integer.value[0] = marian->dco;
> +
> + return 0;
> +}
> +
> +static int marian_generic_dco_int_put(struct snd_kcontrol *kcontrol,
> + struct snd_ctl_elem_value *ucontrol)
> +{
> + struct marian_card *marian = snd_kcontrol_chip(kcontrol);
> +
> + spin_lock(&marian->reglock);
> + marian_generic_set_dco(marian, ucontrol->value.integer.value[0], marian->dco_millis);
> + spin_unlock(&marian->reglock);
> +
> + return 0;
> +}
> +
> +static int marian_generic_dco_int_create(struct marian_card *marian, char *label)
> +{
> + struct snd_kcontrol_new c = {
> + .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
> + .name = label,
> + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
> + .info = marian_generic_dco_int_info,
> + .get = marian_generic_dco_int_get,
> + .put = marian_generic_dco_int_put
> + };
> +
> + return snd_ctl_add(marian->card, snd_ctl_new1(&c, marian));
> +}
> +
> +static int marian_generic_dco_millis_info(struct snd_kcontrol *kcontrol,
> + struct snd_ctl_elem_info *uinfo)
> +{
> + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
> + uinfo->count = 1;
> + uinfo->value.integer.min = 0;
> + uinfo->value.integer.max = 999;
> + uinfo->value.integer.step = 1;
> +
> + return 0;
> +}
> +
> +static int marian_generic_dco_millis_get(struct snd_kcontrol *kcontrol,
> + struct snd_ctl_elem_value *ucontrol)
> +{
> + struct marian_card *marian = snd_kcontrol_chip(kcontrol);
> +
> + ucontrol->value.integer.value[0] = marian->dco_millis;
> +
> + return 0;
> +}
> +
> +static int marian_generic_dco_millis_put(struct snd_kcontrol *kcontrol,
> + struct snd_ctl_elem_value *ucontrol)
> +{
> + struct marian_card *marian = snd_kcontrol_chip(kcontrol);
> +
> + spin_lock(&marian->reglock);
> + marian_generic_set_dco(marian, marian->dco, ucontrol->value.integer.value[0]);
> + spin_unlock(&marian->reglock);
> +
> + return 0;
> +}
> +
> +static int marian_generic_dco_millis_create(struct marian_card *marian, char *label)
> +{
> + struct snd_kcontrol_new c = {
> + .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
> + .name = label,
> + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
> + .info = marian_generic_dco_millis_info,
> + .get = marian_generic_dco_millis_get,
> + .put = marian_generic_dco_millis_put
> + };
> +
> + return snd_ctl_add(marian->card, snd_ctl_new1(&c, marian));
> +}
> +
> +static int marian_generic_dco_detune_info(struct snd_kcontrol *kcontrol,
> + struct snd_ctl_elem_info *uinfo)
> +{
> + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
> + uinfo->count = 1;
> + uinfo->value.integer.min = -200;
> + uinfo->value.integer.max = 200;
> + uinfo->value.integer.step = 1;
> + return 0;
> +}
> +
> +static int marian_generic_dco_detune_get(struct snd_kcontrol *kcontrol,
> + struct snd_ctl_elem_value *ucontrol)
> +{
> + struct marian_card *marian = snd_kcontrol_chip(kcontrol);
> +
> + ucontrol->value.integer.value[0] = marian->detune;
> +
> + return 0;
> +}
> +
> +static int marian_generic_dco_detune_put(struct snd_kcontrol *kcontrol,
> + struct snd_ctl_elem_value *ucontrol)
> +{
> + struct marian_card *marian = snd_kcontrol_chip(kcontrol);
> +
> + spin_lock(&marian->reglock);
> + marian->detune = ucontrol->value.integer.value[0];
> +
> + marian_generic_set_dco(marian, marian->dco, marian->dco_millis);
> + spin_unlock(&marian->reglock);
> +
> + return 0;
> +}
> +
> +static int marian_generic_dco_detune_create(struct marian_card *marian, char *label)
> +{
> + struct snd_kcontrol_new c = {
> + .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
> + .name = label,
> + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
> + .info = marian_generic_dco_detune_info,
> + .get = marian_generic_dco_detune_get,
> + .put = marian_generic_dco_detune_put
> + };
> +
> + return snd_ctl_add(marian->card, snd_ctl_new1(&c, marian));
> +}
> +
> +static int marian_control_pcm_loopback_info(struct snd_kcontrol *kcontrol,
> + struct snd_ctl_elem_info *uinfo)
> +{
> + uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
> + uinfo->count = 1;
> + uinfo->value.integer.min = 0;
> + uinfo->value.integer.max = 1;
> +
> + return 0;
> +}
> +
> +static int marian_control_pcm_loopback_get(struct snd_kcontrol *kcontrol,
> + struct snd_ctl_elem_value *ucontrol)
> +{
> + struct marian_card *marian = snd_kcontrol_chip(kcontrol);
> +
> + ucontrol->value.integer.value[0] = marian->loopback;
> +
> + return 0;
> +}
> +
> +static int marian_control_pcm_loopback_put(struct snd_kcontrol *kcontrol,
> + struct snd_ctl_elem_value *ucontrol)
> +{
> + struct marian_card *marian = snd_kcontrol_chip(kcontrol);
> +
> + marian->loopback = ucontrol->value.integer.value[0];
> +
> + return 0;
> +}
> +static int marian_control_pcm_loopback_create(struct marian_card *marian)
> +{
> + struct snd_kcontrol_new c = {
> + .iface = SNDRV_CTL_ELEM_IFACE_PCM,
> + .name = "Loopback",
> + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
> + .info = marian_control_pcm_loopback_info,
> + .get = marian_control_pcm_loopback_get,
> + .put = marian_control_pcm_loopback_put,
> + };
> +
> + return snd_ctl_add(marian->card, snd_ctl_new1(&c, marian));
> +}
> +
> +static void marian_generic_dco_create(struct marian_card *marian)
> +{
> + marian_generic_dco_int_create(marian, "DCO Freq (Hz)");
> + marian_generic_dco_millis_create(marian, "DCO Freq (millis)");
> + marian_generic_dco_detune_create(marian, "DCO Detune (cent)");
> +}
> +
> +static int marian_generic_speedmode_info(struct snd_kcontrol *kcontrol,
> + struct snd_ctl_elem_info *uinfo)
> +{
> + struct marian_card *marian = snd_kcontrol_chip(kcontrol);
> + static const char * const texts[] = { "1FS", "2FS", "4FS" };
> +
> + uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
> + uinfo->count = 1;
> + switch (marian->desc->speedmode_max) {
> + case SPEEDMODE_SLOW:
> + uinfo->value.enumerated.items = 1;
> + break;
> + case SPEEDMODE_FAST:
> + uinfo->value.enumerated.items = 2;
> + break;
> + }
> + if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
> + uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
> + strscpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item],
> + sizeof(uinfo->value.enumerated.name));
> + return 0;
> +}
> +
> +static int marian_generic_speedmode_get(struct snd_kcontrol *kcontrol,
> + struct snd_ctl_elem_value *ucontrol)
> +{
> + struct marian_card *marian = snd_kcontrol_chip(kcontrol);
> +
> + ucontrol->value.enumerated.item[0] = marian->speedmode - 1;
> +
> + return 0;
> +}
> +
> +static int marian_generic_speedmode_put(struct snd_kcontrol *kcontrol,
> + struct snd_ctl_elem_value *ucontrol)
> +{
> + struct marian_card *marian = snd_kcontrol_chip(kcontrol);
> +
> + spin_lock(&marian->reglock);
> + marian->desc->set_speedmode(marian, ucontrol->value.enumerated.item[0] + 1);
> + spin_unlock(&marian->reglock);
> +
> + return 0;
> +}
> +
> +static int marian_generic_speedmode_create(struct marian_card *marian)
> +{
> + struct snd_kcontrol_new c = {
> + .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
> + .name = "Speed Mode",
> + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
> + .info = marian_generic_speedmode_info,
> + .get = marian_generic_speedmode_get,
> + .put = marian_generic_speedmode_put,
> + };
> +
> + return snd_ctl_add(marian->card, snd_ctl_new1(&c, marian));
> +}
> +
> +static int spi_wait_for_ar(struct marian_card *marian)
> +{
> + int tries = 10;
> +
> + while (tries > 0) {
> + if (readl(marian->iobase + 0x70) == SPI_ALL_READY)
> + break;
> + udelay(100);
> + tries--;
> + }
> + if (tries == 0)
> + return -EIO;
> + return 0;
> +}
> +
> +static int marian_spi_transfer(struct marian_card *marian, uint16_t cs, uint16_t bits_write,
> + u8 *data_write, uint16_t bits_read, u8 *data_read)
> +{
> + u32 buf = 0;
> + unsigned int i;
> + int err = 0;
> +
> + spin_lock(&marian->spi_lock);
> +
> + if (spi_wait_for_ar(marian) < 0)
> + writel(0x1234, marian->iobase + 0x70); // Resetting SPI bus
> +
> + writel(cs, marian->iobase + 0x60); // chip select register
> + writel(bits_write, marian->iobase + 0x64); // number of bits to write
> + writel(bits_read, marian->iobase + 0x68); // number of bits to read
> +
> + if (bits_write <= 32) {
> + if (bits_write <= 8)
> + buf = data_write[0] << (32 - bits_write);
> + else if (bits_write <= 16)
> + buf = data_write[0] << 24 | data_write[1] << (32 - bits_write);
> +
> + writel(buf, marian->iobase + 0x6C); // write data left aligned
> + }
> + if (bits_read > 0 && bits_read <= 32) {
> + if (spi_wait_for_ar(marian) < 0) {
> + dev_dbg(marian->card->dev,
> + "Bus didn't signal AR\n");
> + err = -EIO;
> + goto unlock_exit;
> + }
> +
> + buf = readl(marian->iobase + MARIAN_SPI_CLOCK_DIVIDER);
> +
> + buf <<= 32 - bits_read;
> + i = 0;
> +
> + while (bits_read > 0) {
> + data_read[i++] = (buf >> 24) & 0xFF;
> + buf <<= 8;
> + bits_read -= 8;
> + }
> + }
> +
> +unlock_exit:
> + spin_unlock(&marian->spi_lock);
> + return err;
> +}
> +
> +static u8 marian_m2_spi_read(struct marian_card *marian, u8 adr)
> +{
> + u8 buf_in;
> +
> + adr = adr & 0x7F;
> +
> + if (marian_spi_transfer(marian, 0x02, 8, &adr, 8, &buf_in) == 0)
> + return buf_in;
> +
> + return 0;
> +}
> +
> +static int marian_m2_spi_write(struct marian_card *marian, u8 adr, u8 val)
> +{
> + u8 buf_out[2];
> +
> + buf_out[0] = 0x80 | adr;
> + buf_out[1] = val;
> +
> + return marian_spi_transfer(marian, 0x02, 16, (u8 *)&buf_out, 0, NULL);
> +}
> +
> +static int marian_m2_sync_state_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
> +{
> + static const char * const texts[] = { "No Signal", "Lock", "Sync" };
> +
> + return snd_ctl_enum_info(uinfo, 1, ARRAY_SIZE(texts), texts);
> +}
> +
> +static int marian_m2_sync_state_get(struct snd_kcontrol *kcontrol,
> + struct snd_ctl_elem_value *ucontrol)
> +{
> + struct marian_card *marian = snd_kcontrol_chip(kcontrol);
> + u8 v = marian_m2_spi_read(marian, 0x00);
> +
> + v = (v >> (kcontrol->private_value * 2)) & 0x3;
> + if (v == 3)
> + v--;
> +
> + ucontrol->value.enumerated.item[0] = v;
> +
> + return 0;
> +}
> +
> +static int marian_m2_sync_state_create(struct marian_card *marian, char *label, u32 idx)
> +{
> + struct snd_kcontrol_new c = {
> + .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
> + .name = label,
> + .private_value = idx,
> + .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
> + .info = marian_m2_sync_state_info,
> + .get = marian_m2_sync_state_get
> + };
> +
> + return snd_ctl_add(marian->card, snd_ctl_new1(&c, marian));
> +}
> +
> +static int marian_m2_channel_mode_info(struct snd_kcontrol *kcontrol,
> + struct snd_ctl_elem_info *uinfo)
> +{
> + static const char * const texts[] = { "56ch", "64ch" };
> +
> + return snd_ctl_enum_info(uinfo, 1, ARRAY_SIZE(texts), texts);
> +}
> +
> +static int marian_m2_input_channel_mode_get(struct snd_kcontrol *kcontrol,
> + struct snd_ctl_elem_value *ucontrol)
> +{
> + struct marian_card *marian = snd_kcontrol_chip(kcontrol);
> + u8 v = marian_m2_spi_read(marian, 0x01);
> +
> + v = (v >> (kcontrol->private_value * 2)) & 0x1;
> + ucontrol->value.enumerated.item[0] = v;
> +
> + return 0;
> +}
> +
> +static int marian_m2_input_channel_mode_create(struct marian_card *marian,
> + char *label, u32 idx)
> +{
> + struct snd_kcontrol_new c = {
> + .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
> + .name = label,
> + .private_value = idx,
> + .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
> + .info = marian_m2_channel_mode_info,
> + .get = marian_m2_input_channel_mode_get
> + };
> +
> + return snd_ctl_add(marian->card, snd_ctl_new1(&c, marian));
> +}
> +
> +static int marian_m2_frame_mode_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
> +{
> + static const char * const texts[] = { "48kHz", "96kHz" };
> +
> + return snd_ctl_enum_info(uinfo, 1, ARRAY_SIZE(texts), texts);
> +}
> +
> +static int marian_m2_input_frame_mode_get(struct snd_kcontrol *kcontrol,
> + struct snd_ctl_elem_value *ucontrol)
> +{
> + struct marian_card *marian = snd_kcontrol_chip(kcontrol);
> + u8 v = marian_m2_spi_read(marian, 0x01);
> +
> + v = (v >> ((kcontrol->private_value * 2) + 1)) & 0x1;
> + ucontrol->value.enumerated.item[0] = v;
> +
> + return 0;
> +}
> +
> +static int marian_m2_input_frame_mode_create(struct marian_card *marian, char *label, u32 idx)
> +{
> + struct snd_kcontrol_new c = {
> + .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
> + .name = label,
> + .private_value = idx,
> + .access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
> + .info = marian_m2_frame_mode_info,
> + .get = marian_m2_input_frame_mode_get
> + };
> +
> + return snd_ctl_add(marian->card, snd_ctl_new1(&c, marian));
> +}
> +
> +static u8 marian_m2_get_port_mode(struct marian_card *marian, unsigned int port)
> +{
> + struct m2_specific *spec = marian->card_specific;
> +
> + if (port)
> + return (spec->shadow_42 >> M2_PORT2_MODE) & 1;
> + else
> + return (spec->shadow_42 >> M2_PORT1_MODE) & 1;
> +}
> +
> +static int marian_m2_output_channel_mode_get(struct snd_kcontrol *kcontrol,
> + struct snd_ctl_elem_value *ucontrol)
> +{
> + struct marian_card *marian = snd_kcontrol_chip(kcontrol);
> +
> + ucontrol->value.enumerated.item[0] = marian_m2_get_port_mode(marian,
> + kcontrol->private_value);
> +
> + return 0;
> +}
> +
> +static void marian_m2_set_port_mode(struct marian_card *marian, unsigned int port, u8 state)
> +{
> + struct m2_specific *spec = (struct m2_specific *)marian->card_specific;
> +
> + if (port)
> + spec->shadow_42 = (spec->shadow_42 & ~(1 << M2_PORT2_MODE))
> + | state << M2_PORT2_MODE;
> + else
> + spec->shadow_42 = (spec->shadow_42 & ~(1 << M2_PORT1_MODE))
> + | state << M2_PORT1_MODE;
> +
> + marian_m2_spi_write(marian, 0x42, spec->shadow_42);
> +}
> +
> +static int marian_m2_output_channel_mode_put(struct snd_kcontrol *kcontrol,
> + struct snd_ctl_elem_value *ucontrol)
> +{
> + struct marian_card *marian = snd_kcontrol_chip(kcontrol);
> +
> + spin_lock(&marian->reglock);
> + marian_m2_set_port_mode(marian, kcontrol->private_value,
> + ucontrol->value.enumerated.item[0]);
> + spin_unlock(&marian->reglock);
> +
> + return 0;
> +}
> +
> +static int marian_m2_output_channel_mode_create(struct marian_card *marian,
> + char *label, u32 idx)
> +{
> + struct snd_kcontrol_new c = {
> + .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
> + .name = label,
> + .private_value = idx,
> + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
> + .info = marian_m2_channel_mode_info,
> + .get = marian_m2_output_channel_mode_get,
> + .put = marian_m2_output_channel_mode_put
> + };
> +
> + return snd_ctl_add(marian->card, snd_ctl_new1(&c, marian));
> +}
> +
> +static int marian_m2_output_frame_mode_info(struct snd_kcontrol *kcontrol,
> + struct snd_ctl_elem_info *uinfo)
> +{
> + return snd_ctl_boolean_mono_info(kcontrol, uinfo);
> +}
> +
> +static int marian_m2_output_frame_mode_get(struct snd_kcontrol *kcontrol,
> + struct snd_ctl_elem_value *ucontrol)
> +{
> + struct marian_card *marian = snd_kcontrol_chip(kcontrol);
> + struct m2_specific *spec = (struct m2_specific *)marian->card_specific;
> +
> + ucontrol->value.enumerated.item[0] = (spec->frame >> kcontrol->private_value) & 1;
> +
> + return 0;
> +}
> +
> +static void marian_m2_write_port_frame(struct marian_card *marian)
> +{
> + struct m2_specific *spec = (struct m2_specific *)marian->card_specific;
> +
> + spec->shadow_42 = spec->shadow_42 & ~((1 << M2_PORT1_FRAME) | (1 << M2_PORT2_FRAME));
> +
> + if (marian->speedmode == 2) {
> + // If we are in FS2, set 96kHz mode where enabled
> + if (spec->frame & 1)
> + spec->shadow_42 |= 1 << M2_PORT1_FRAME;
> + if (spec->frame & 2)
> + spec->shadow_42 |= 1 << M2_PORT2_FRAME;
> + }
> +
> + marian_m2_spi_write(marian, 0x42, spec->shadow_42);
> +}
> +
> +static void marian_m2_set_port_frame(struct marian_card *marian, unsigned int port, u8 state)
> +{
> + struct m2_specific *spec = (struct m2_specific *)marian->card_specific;
> +
> + spec->frame = (spec->frame & ~(1 << port)) | (state << port);
> +
> + marian_m2_write_port_frame(marian);
> +}
> +
> +static int marian_m2_output_frame_mode_put(struct snd_kcontrol *kcontrol,
> + struct snd_ctl_elem_value *ucontrol)
> +{
> + struct marian_card *marian = snd_kcontrol_chip(kcontrol);
> +
> + spin_lock(&marian->reglock);
> + marian_m2_set_port_frame(marian, kcontrol->private_value,
> + ucontrol->value.enumerated.item[0]);
> + spin_unlock(&marian->reglock);
> +
> + return 0;
> +}
> +
> +static int marian_m2_output_frame_mode_create(struct marian_card *marian, char *label, u32 idx)
> +{
> + struct snd_kcontrol_new c = {
> + .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
> + .name = label,
> + .private_value = idx,
> + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
> + .info = marian_m2_output_frame_mode_info,
> + .get = marian_m2_output_frame_mode_get,
> + .put = marian_m2_output_frame_mode_put,
> + };
> +
> + return snd_ctl_add(marian->card, snd_ctl_new1(&c, marian));
> +}
> +
> +static int marian_m2_clock_source_info(struct snd_kcontrol *kcontrol,
> + struct snd_ctl_elem_info *uinfo)
> +{
> + static const char * const texts[] = {"Internal", "Sync Bus",
> + "Input Port 1", "Input Port 2"};
> +
> + return snd_ctl_enum_info(uinfo, 1, ARRAY_SIZE(texts), texts);
> +}
> +
> +static int marian_m2_clock_source_get(struct snd_kcontrol *kcontrol,
> + struct snd_ctl_elem_value *ucontrol)
> +{
> + struct marian_card *marian = snd_kcontrol_chip(kcontrol);
> +
> + switch (marian->clock_source) {
> + case M2_CLOCK_SRC_DCO:
> + ucontrol->value.enumerated.item[0] = CLOCK_SRC_INTERNAL;
> + break;
> + case M2_CLOCK_SRC_SYNCBUS:
> + ucontrol->value.enumerated.item[0] = CLOCK_SRC_SYNCBUS;
> + break;
> + case M2_CLOCK_SRC_MADI1:
> + ucontrol->value.enumerated.item[0] = CLOCK_SRC_INP1;
> + break;
> + case M2_CLOCK_SRC_MADI2:
> + ucontrol->value.enumerated.item[0] = CLOCK_SRC_INP2;
> + break;
> + default:
> + dev_dbg(marian->card->dev,
> + "Illegal value for clock_source! (%d)\n",
> + marian->clock_source);
> + return -EINVAL;
> + }
> +
> + return 0;
> +}
> +
> +static int marian_m2_clock_source_put(struct snd_kcontrol *kcontrol,
> + struct snd_ctl_elem_value *ucontrol)
> +{
> + struct marian_card *marian = snd_kcontrol_chip(kcontrol);
> +
> + switch (ucontrol->value.enumerated.item[0]) {
> + case CLOCK_SRC_INTERNAL:
> + marian_generic_set_clock_source(marian, M2_CLOCK_SRC_DCO);
> + break;
> + case CLOCK_SRC_SYNCBUS:
> + marian_generic_set_clock_source(marian, M2_CLOCK_SRC_SYNCBUS);
> + break;
> + case CLOCK_SRC_INP1:
> + marian_generic_set_clock_source(marian, M2_CLOCK_SRC_MADI1);
> + break;
> + case CLOCK_SRC_INP2:
> + marian_generic_set_clock_source(marian, M2_CLOCK_SRC_MADI2);
> + break;
> + }
> +
> + return 0;
> +}
> +
> +static int marian_m2_clock_source_create(struct marian_card *marian)
> +{
> + struct snd_kcontrol_new c = {
> + .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
> + .name = "Clock Source",
> + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
> + .info = marian_m2_clock_source_info,
> + .get = marian_m2_clock_source_get,
> + .put = marian_m2_clock_source_put,
> + };
> +
> + return snd_ctl_add(marian->card, snd_ctl_new1(&c, marian));
> +}
> +
> +/*
> + * Controls:
> + *
> + * RO:
> + * - Input 1 sync state (no signal, lock, sync)
> + * - Input 1 channel mode (56/64ch)
> + * - Input 1 frame mode (48/96kHz)
> + * - Input 1 frequency
> + * - Input 2 sync state (no signal, lock, sync)
> + * - Input 2 channel mode (56/64ch)
> + * - Input 2 frame mode (48/96kHz)
> + * - Input 2 frequency
> + *
> + * RW:
> + * - Output 1 channel mode (56/64ch)
> + * - Output 1 frame mode (48/96kHz)
> + * - Output 2 channel mode (56/64ch)
> + * - Output 2 frame mode (48/96kHz)
> + * - Word clock source (Port 1, Port 2, Internal, Sync port, WCK input)
> + * - Speed mode (1, 2, 4FS)
> + * - DCO frequency (1 Hertz)
> + * - DCO frequency (1/1000th)
> + */
> +static void marian_m2_create_controls(struct marian_card *marian)
> +{
> + marian_m2_sync_state_create(marian, "Input 1 Sync", M2_INP1_SYNC_CTL_ID);
> + marian_m2_sync_state_create(marian, "Input 2 Sync", M2_INP2_SYNC_CTL_ID);
> + marian_m2_input_channel_mode_create(marian, "Input 1 Channel Mode",
> + M2_INP1_CM_CTL_ID);
> + marian_m2_input_channel_mode_create(marian, "Input 2 Channel Mode",
> + M2_INP2_CM_CTL_ID);
> + marian_m2_input_frame_mode_create(marian, "Input 1 Frame Mode",
> + M2_INP1_FM_CTL_ID);
> + marian_m2_input_frame_mode_create(marian, "Input 2 Frame Mode",
> + M2_INP2_FM_CTL_ID);
> + marian_generic_frequency_create(marian, "Input 1 Frequency",
> + M2_INP1_FREQ_CTL_ID);
> + marian_generic_frequency_create(marian, "Input 2 Frequency",
> + M2_INP2_FREQ_CTL_ID);
> + marian_m2_output_channel_mode_create(marian, "Output 1 Channel Mode",
> + M2_OUT1_CM_CTL_ID);
> + marian_m2_output_channel_mode_create(marian, "Output 2 Channel Mode",
> + M2_OUT2_CM_CTL_ID);
> + marian_m2_output_frame_mode_create(marian, "Output 1 96kHz Frame",
> + M2_OUT1_FM_CTL_ID);
> + marian_m2_output_frame_mode_create(marian, "Output 2 96kHz Frame",
> + M2_OUT2_FM_CTL_ID);
> + marian_m2_clock_source_create(marian);
> + marian_generic_speedmode_create(marian);
> + marian_generic_dco_create(marian);
> + marian_control_pcm_loopback_create(marian);
> +}
> +
> +static void marian_m2_set_float(struct marian_card *marian, enum m2_num_mode state)
> +{
> + struct m2_specific *spec = (struct m2_specific *)marian->card_specific;
> +
> + spec->shadow_41 = (spec->shadow_41 & ~(1 << M2_INT_FLOAT)) | state << M2_INT_FLOAT;
> + marian_m2_spi_write(marian, 0x41, spec->shadow_41);
> +}
> +
> +static void marian_m2_set_endianness(struct marian_card *marian, enum m2_endianness_mode state)
> +{
> + struct m2_specific *spec = (struct m2_specific *)marian->card_specific;
> +
> + spec->shadow_41 = (spec->shadow_41 & ~(1 << M2_ENDIANNESS)) | state << M2_ENDIANNESS;
> + marian_m2_spi_write(marian, 0x41, spec->shadow_41);
> +}
> +
> +static void marian_m2_set_speedmode(struct marian_card *marian, unsigned int speedmode)
> +{
> + marian_generic_set_speedmode(marian, speedmode);
> + marian_m2_write_port_frame(marian);
> +}
> +
> +static int marian_m2_init(struct marian_card *marian)
> +{
> + struct m2_specific *spec;
> +
> + marian_generic_init(marian);
> + spec = kzalloc(sizeof(*spec), GFP_KERNEL);
> + if (!spec) {
> + dev_dbg(marian->card->dev,
> + "Cannot allocate card specific structure\n");
> + return -ENOMEM;
> + }
> +
> + spec->shadow_40 = 0x00;
> + spec->shadow_41 = (1 << M2_TX_ENABLE);
> + spec->shadow_42 = (1 << M2_PORT1_MODE) | (1 << M2_PORT2_MODE);
> +
> + marian_m2_spi_write(marian, 0x40, spec->shadow_40);
> + marian_m2_spi_write(marian, 0x41, spec->shadow_41);
> + marian_m2_spi_write(marian, 0x42, spec->shadow_42);
> +
> + marian->card_specific = spec;
> + return 0;
> +}
> +
> +static void marian_m2_free(struct marian_card *marian)
> +{
> + kfree(marian->card_specific);
> +}
> +
> +static void marian_m2_prepare(struct marian_card *marian)
> +{
> + u32 mask = 0xFFFFFFFF;
> +
> + spin_lock(&marian->reglock);
> + writel(mask, marian->iobase + 0x20);
> + writel(mask, marian->iobase + 0x24);
> + writel(mask, marian->iobase + 0x28);
> + writel(mask, marian->iobase + 0x2C);
> + writel(mask, marian->iobase + 0x30);
> + writel(mask, marian->iobase + 0x34);
> + writel(mask, marian->iobase + 0x38);
> + writel(mask, marian->iobase + 0x3C);
> + spin_unlock(&marian->reglock);
> +}
> +
> +static void marian_m2_proc_status(struct marian_card *marian, struct snd_info_buffer *buffer)
> +{
> + struct m2_specific *spec = (struct m2_specific *)marian->card_specific;
> + u8 v1, v2;
> +
> + marian_proc_status_generic(marian, buffer);
> +
> + snd_iprintf(buffer, "\n*** MADI FPGA registers\n");
> + snd_iprintf(buffer, "M2 MADI 00h: %02x\n", marian_m2_spi_read(marian, 0x00));
> + snd_iprintf(buffer, "M2 MADI 01h: %02x\n", marian_m2_spi_read(marian, 0x01));
> + snd_iprintf(buffer, "M2 MADI 02h: %02x\n", marian_m2_spi_read(marian, 0x02));
> + snd_iprintf(buffer, "M2 MADI 40h: %02x\n", spec->shadow_40);
> + snd_iprintf(buffer, "M2 MADI 41h: %02x\n", spec->shadow_41);
> + snd_iprintf(buffer, "M2 MADI 42h: %02x\n", spec->shadow_42);
> +
> + snd_iprintf(buffer, "\n*** MADI FPGA status\n");
> + snd_iprintf(buffer, "MADI FPGA firmware: 0x%02x\n", marian_m2_spi_read(marian, 0x02));
> +
> + snd_iprintf(buffer, "Clock source: ");
> + switch (marian->clock_source) {
> + case 1:
> + snd_iprintf(buffer, "Internal DCO\n");
> + break;
> + case 2:
> + snd_iprintf(buffer, "Sync bus\n");
> + break;
> + case 4:
> + snd_iprintf(buffer, "MADI Input 1\n");
> + break;
> + case 5:
> + snd_iprintf(buffer, "MADI Input 2\n");
> + break;
> + default:
> + snd_iprintf(buffer, "UNKNOWN\n");
> + break;
> + }
> +
> + snd_iprintf(buffer, "Sample format: %s, %s Endian, %s first\n",
> + (spec->shadow_41 & (1 << M2_INT_FLOAT)) ? "Float" : "Integer",
> + (spec->shadow_41 & (1 << M2_ENDIANNESS)) ? "Little" : "Big",
> + (spec->shadow_41 & (1 << M2_BIT_ORDER)) ? "LSB" : "MSB");
> +
> + v1 = marian_m2_spi_read(marian, 0x00);
> + v2 = marian_m2_spi_read(marian, 0x01);
> +
> + snd_iprintf(buffer, "MADI port 1 input: ");
> + if (!(v1 & 0x03))
> + snd_iprintf(buffer, "No signal\n");
> + else
> + snd_iprintf(buffer, "%s, %dch, %dkHz frame, %u Hz\n",
> + (v1 & 0x02) ? "sync" : "lock", (v2 & 0x01) ? 64 : 56,
> + (v2 & 0x02) ? 96 : 48, marian_measure_freq(marian, 4));
> +
> + snd_iprintf(buffer, "MADI port 2 input: ");
> + if (!(v1 & 0x0C))
> + snd_iprintf(buffer, "No signal\n");
> + else
> + snd_iprintf(buffer, "%s, %dch, %dkHz frame, %u Hz\n",
> + (v1 & 0x08) ? "sync" : "lock",
> + (v2 & 0x04) ? 64 : 56, (v2 & 0x08) ? 96 : 48,
> + marian_measure_freq(marian, 5));
> +}
> +
> +static void marian_m2_proc_ports(struct marian_card *marian,
> + struct snd_info_buffer *buffer, unsigned int type)
> +{
> + int i;
> +
> + for (i = 0; i < M2_CHANNELS_COUNT; i++)
> + snd_iprintf(buffer, "%d=MADI p%dch%02d\n", i + 1, i / 64 + 1, i % 64 + 1);
> +}
> +
> +static void marian_m2_constraints(struct marian_card *marian, struct snd_pcm_substream *substream,
> + struct snd_pcm_hw_params *params)
> +{
> + spin_lock(&marian->reglock);
> + switch (params_format(params)) {
> + case SNDRV_PCM_FORMAT_FLOAT_BE:
> + marian_m2_set_float(marian, M2_NUM_MODE_FLOAT);
> + marian_m2_set_endianness(marian, M2_BE);
> + break;
> + case SNDRV_PCM_FORMAT_FLOAT_LE:
> + marian_m2_set_float(marian, M2_NUM_MODE_FLOAT);
> + marian_m2_set_endianness(marian, M2_LE);
> + break;
> + case SNDRV_PCM_FORMAT_S32_BE:
> + marian_m2_set_float(marian, M2_NUM_MODE_INT);
> + marian_m2_set_endianness(marian, M2_BE);
> + break;
> + case SNDRV_PCM_FORMAT_S32_LE:
> + marian_m2_set_float(marian, M2_NUM_MODE_INT);
> + marian_m2_set_endianness(marian, M2_LE);
> + break;
> + }
> + spin_unlock(&marian->reglock);
> +}
> +
> +static struct marian_card_descriptor descriptor = {
> + .name = "Seraph M2",
> + .speedmode_max = 2,
> + .ch_in = M2_CHANNELS_COUNT,
> + .ch_out = M2_CHANNELS_COUNT,
> + .dma_bufsize = 2 * SUBSTREAM_BUF_SIZE,
> + .hw_constraints_func = marian_m2_constraints,
> + .create_controls = marian_m2_create_controls,
> + .init_card = marian_m2_init,
> + .free_card = marian_m2_free,
> + .prepare = marian_m2_prepare,
> + .set_speedmode = marian_m2_set_speedmode,
> + .proc_status = marian_m2_proc_status,
> + .proc_ports = marian_m2_proc_ports,
> + .info_playback = {
> + .info = SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_NONINTERLEAVED
> + | SNDRV_PCM_INFO_JOINT_DUPLEX | SNDRV_PCM_INFO_SYNC_START,
> + .formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE
> + | SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE,
> + .rates = (SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_44100
> + | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200
> + | SNDRV_PCM_RATE_96000),
> + .rate_min = 28000,
> + .rate_max = RATE_FAST,
> + .channels_min = M2_CHANNELS_COUNT,
> + .channels_max = M2_CHANNELS_COUNT,
> + .buffer_bytes_max = SUBSTREAM_BUF_SIZE,
> + .period_bytes_min = SUBSTREAM_PERIOD_SIZE,
> + .period_bytes_max = SUBSTREAM_PERIOD_SIZE,
> + .periods_min = 2,
> + .periods_max = 2
> + },
> + .info_capture = {
> + .info = SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_NONINTERLEAVED
> + | SNDRV_PCM_INFO_SYNC_START | SNDRV_PCM_INFO_JOINT_DUPLEX,
> + .formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE
> + | SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE,
> + .rates = (SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_44100
> + | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200
> + | SNDRV_PCM_RATE_96000),
> + .rate_min = 28000,
> + .rate_max = RATE_FAST,
> + .channels_min = M2_CHANNELS_COUNT,
> + .channels_max = M2_CHANNELS_COUNT,
> + .buffer_bytes_max = SUBSTREAM_BUF_SIZE,
> + .period_bytes_min = SUBSTREAM_PERIOD_SIZE,
> + .period_bytes_max = SUBSTREAM_PERIOD_SIZE,
> + .periods_min = 2,
> + .periods_max = 2
> + }
> +};
> +
> +static int snd_marian_m2_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
> +{
> + static unsigned int dev;
> + struct snd_card *card;
> + int err;
> +
> + if (dev >= SNDRV_CARDS)
> + return -ENODEV;
> +
> + err = snd_card_new(&pci->dev, index[dev], id[dev],
> + THIS_MODULE, sizeof(struct marian_card), &card);
> + if (err < 0)
> + return err;
> +
> + err = snd_marian_create(card, pci, &descriptor, dev);
> + if (err < 0) {
> + snd_card_free(card);
> + return err;
> + }
> +
> + pci_set_drvdata(pci, card);
> +
> + dev++;
> +
> + return 0;
> +}
> +
> +static void snd_marian_m2_remove(struct pci_dev *pci)
> +{
> + snd_card_free(pci_get_drvdata(pci));
> + pci_set_drvdata(pci, NULL);
> +}
> +
> +static struct pci_driver marian_driver = {
> + .name = "MARIAN",
> + .id_table = snd_marian_ids,
> + .probe = snd_marian_m2_probe,
> + .remove = snd_marian_m2_remove,
> +};
> +
> +module_pci_driver(marian_driver);
> +
> +MODULE_AUTHOR("Florin Faber <faberman@...uxproaudio.org>");
> +MODULE_DESCRIPTION("MARIAN Seraph series");
> +MODULE_LICENSE("GPL");
This patch contains some broken file changes. Sorry for that, I'll send
the V2.
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