forked from Minki/linux
96e5fbb0dd
TASCAM FireWire series has certain registers for firmware information. This commit adds proc node to show the information. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
89 lines
2.3 KiB
C
89 lines
2.3 KiB
C
/*
|
|
* 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);
|
|
}
|