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ALSA: bebob: Send a cue to load firmware for M-Audio Firewire series

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Just powering on, these devices below wait to download firmware.
 - Firewire Audiophile
 - Firewire 410
 - Firewire 1814
 - ProjectMix I/O

But firmware version 5058 or later, flash memory in the device stores the
firmware. So this driver can enable these devices by sending a certain cue to
load the firmware.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Sakamoto
2014-04-25 22:45:29 +09:00
committed by Takashi Iwai
parent c495a4a36e
commit a2b2a7798f
3 changed files with 79 additions and 9 deletions
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64
sound/firewire/bebob/bebob_maudio.c
View File

@@ -16,6 +16,10 @@
* settings when completing uploading. Then these devices generate bus reset
* and are recognized as new devices with the firmware.
*
* But with firmware version 5058 or later, the firmware is stored to flash
* memory in the device and drivers can tell bootloader to load the firmware
* by sending a cue. This cue must be sent one time.
*
* For streaming, both of output and input streams are needed for Firewire 410
* and Ozonic. The single stream is OK for the other devices even if the clock
* source is not SYT-Match (I note no devices use SYT-Match).
@@ -31,6 +35,20 @@
* functionality is between 0xffc700700000 to 0xffc70070009c.
*/
/* Offset from information register */
#define INFO_OFFSET_SW_DATE 0x20
/* Bootloader Protocol Version 1 */
#define MAUDIO_BOOTLOADER_CUE1 0x00000001
/*
* Initializing configuration to factory settings (= 0x1101), (swapped in line),
* Command code is zero (= 0x00),
* the number of operands is zero (= 0x00)(at least significant byte)
*/
#define MAUDIO_BOOTLOADER_CUE2 0x01110000
/* padding */
#define MAUDIO_BOOTLOADER_CUE3 0x00000000
#define MAUDIO_SPECIFIC_ADDRESS 0xffc700000000
#define METER_OFFSET 0x00600000
@@ -67,6 +85,52 @@ struct special_params {
struct snd_ctl_elem_id *ctl_id_sync;
};
/*
* For some M-Audio devices, this module just send cue to load firmware. After
* loading, the device generates bus reset and newly detected.
*
* If we make any transactions to load firmware, the operation may failed.
*/
int snd_bebob_maudio_load_firmware(struct fw_unit *unit)
{
struct fw_device *device = fw_parent_device(unit);
int err, rcode;
u64 date;
__be32 cues[3] = {
MAUDIO_BOOTLOADER_CUE1,
MAUDIO_BOOTLOADER_CUE2,
MAUDIO_BOOTLOADER_CUE3
};
/* check date of software used to build */
err = snd_bebob_read_block(unit, INFO_OFFSET_SW_DATE,
&date, sizeof(u64));
if (err < 0)
goto end;
/*
* firmware version 5058 or later has date later than "20070401", but
* 'date' is not null-terminated.
*/
if (date < 0x3230303730343031) {
dev_err(&unit->device,
"Use firmware version 5058 or later\n");
err = -ENOSYS;
goto end;
}
rcode = fw_run_transaction(device->card, TCODE_WRITE_BLOCK_REQUEST,
device->node_id, device->generation,
device->max_speed, BEBOB_ADDR_REG_REQ,
cues, sizeof(cues));
if (rcode != RCODE_COMPLETE) {
dev_err(&unit->device,
"Failed to send a cue to load firmware\n");
err = -EIO;
}
end:
return err;
}
static inline int
get_meter(struct snd_bebob *bebob, void *buf, unsigned int size)
{