diff options
author | Takashi Sakamoto <o-takashi@sakamocchi.jp> | 2014-04-25 22:45:29 +0900 |
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committer | Takashi Iwai <tiwai@suse.de> | 2014-05-26 14:32:58 +0200 |
commit | a2b2a7798fb6a5c639189e5c8f608a56fdc7a222 (patch) | |
tree | 7b0acc20b8d300e0ffa2b0e8b9322b1402254731 /sound/firewire/bebob/bebob_maudio.c | |
parent | c495a4a36e763de3eb164280fd7445f1bf666a52 (diff) |
ALSA: bebob: Send a cue to load firmware for M-Audio Firewire series
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>
Diffstat (limited to 'sound/firewire/bebob/bebob_maudio.c')
-rw-r--r-- | sound/firewire/bebob/bebob_maudio.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/sound/firewire/bebob/bebob_maudio.c b/sound/firewire/bebob/bebob_maudio.c index 544094b22c6d..52b1a40e5e13 100644 --- a/sound/firewire/bebob/bebob_maudio.c +++ b/sound/firewire/bebob/bebob_maudio.c @@ -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) { |