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Commit 96e5fbb0 authored by Takashi Sakamoto's avatar Takashi Sakamoto Committed by Takashi Iwai
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ALSA: firewire-tascam: add proc node to show firmware information 



TASCAM FireWire series has certain registers for firmware information.

This commit adds proc node to show the information.

Signed-off-by: default avatarTakashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 6f81ba19

sound/firewire/tascam/Makefile

+1 −1
Original line number Original line Diff line number Diff line 
snd-firewire-tascam-objs := tascam.o

snd-firewire-tascam-objs := tascam-proc.o tascam.o

obj-$(CONFIG_SND_FIREWIRE_TASCAM) += snd-firewire-tascam.o
 
obj-$(CONFIG_SND_FIREWIRE_TASCAM) += snd-firewire-tascam.o

sound/firewire/tascam/tascam-proc.c

0 → 100644
+88 −0
Original line number Original line Diff line number Diff line 
/*

 * tascam-proc.h - a part of driver for TASCAM FireWire series

 *

 * Copyright (c) 2015 Takashi Sakamoto

 *

 * Licensed under the terms of the GNU General Public License, version 2.

 */



#include "./tascam.h"



static void proc_read_firmware(struct snd_info_entry *entry,

			       struct snd_info_buffer *buffer)

{

	struct snd_tscm *tscm = entry->private_data;

	__be32 data;

	unsigned int reg, fpga, arm, hw;

	int err;



	err = snd_fw_transaction(tscm->unit, TCODE_READ_QUADLET_REQUEST,

			TSCM_ADDR_BASE + TSCM_OFFSET_FIRMWARE_REGISTER,

			&data, sizeof(data), 0);

	if (err < 0)

		return;

	reg = be32_to_cpu(data);



	err = snd_fw_transaction(tscm->unit, TCODE_READ_QUADLET_REQUEST,

			TSCM_ADDR_BASE + TSCM_OFFSET_FIRMWARE_FPGA,

			&data, sizeof(data), 0);

	if (err < 0)

		return;

	fpga = be32_to_cpu(data);



	err = snd_fw_transaction(tscm->unit, TCODE_READ_QUADLET_REQUEST,

			TSCM_ADDR_BASE + TSCM_OFFSET_FIRMWARE_ARM,

			&data, sizeof(data), 0);

	if (err < 0)

		return;

	arm = be32_to_cpu(data);



	err = snd_fw_transaction(tscm->unit, TCODE_READ_QUADLET_REQUEST,

			TSCM_ADDR_BASE + TSCM_OFFSET_FIRMWARE_HW,

			&data, sizeof(data), 0);

	if (err < 0)

		return;

	hw = be32_to_cpu(data);



	snd_iprintf(buffer, "Register: %d (0x%08x)\n", reg & 0xffff, reg);

	snd_iprintf(buffer, "FPGA:     %d (0x%08x)\n", fpga & 0xffff, fpga);

	snd_iprintf(buffer, "ARM:      %d (0x%08x)\n", arm & 0xffff, arm);

	snd_iprintf(buffer, "Hardware: %d (0x%08x)\n", hw >> 16, hw);

}



static void add_node(struct snd_tscm *tscm, struct snd_info_entry *root,

		     const char *name,

		     void (*op)(struct snd_info_entry *e,

				struct snd_info_buffer *b))

{

	struct snd_info_entry *entry;



	entry = snd_info_create_card_entry(tscm->card, name, root);

	if (entry == NULL)

		return;



	snd_info_set_text_ops(entry, tscm, op);

	if (snd_info_register(entry) < 0)

		snd_info_free_entry(entry);

}



void snd_tscm_proc_init(struct snd_tscm *tscm)

{

	struct snd_info_entry *root;



	/*

	 * All nodes are automatically removed at snd_card_disconnect(),

	 * by following to link list.

	 */

	root = snd_info_create_card_entry(tscm->card, "firewire",

					  tscm->card->proc_root);

	if (root == NULL)

		return;

	root->mode = S_IFDIR | S_IRUGO | S_IXUGO;

	if (snd_info_register(root) < 0) {

		snd_info_free_entry(root);

		return;

	}



	add_node(tscm, root, "firmware", proc_read_firmware);

}

sound/firewire/tascam/tascam.c

+2 −0
Original line number Original line Diff line number Diff line
@@ -113,6 +113,8 @@ static int snd_tscm_probe(struct fw_unit *unit, 
	if (err < 0)

	if (err < 0)

		goto error;

		goto error;





	snd_tscm_proc_init(tscm);



	err = snd_card_register(card);

	err = snd_card_register(card);

	if (err < 0)

	if (err < 0)

		goto error;

		goto error;

sound/firewire/tascam/tascam.h

+10 −0
Original line number Original line Diff line number Diff line
@@ -20,6 +20,7 @@ 




#include <sound/core.h>

#include <sound/core.h>

#include <sound/initval.h>

#include <sound/initval.h>

#include <sound/info.h>





#include "../lib.h"

#include "../lib.h"
@@ -43,4 +44,13 @@ struct snd_tscm { 
	const struct snd_tscm_spec *spec;

	const struct snd_tscm_spec *spec;

};

};





#define TSCM_ADDR_BASE			0xffff00000000ull



#define TSCM_OFFSET_FIRMWARE_REGISTER	0x0000

#define TSCM_OFFSET_FIRMWARE_FPGA	0x0004

#define TSCM_OFFSET_FIRMWARE_ARM	0x0008

#define TSCM_OFFSET_FIRMWARE_HW		0x000c



void snd_tscm_proc_init(struct snd_tscm *tscm);



#endif
 
#endif