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authorTakashi Sakamoto <o-takashi@sakamocchi.jp>2015-10-01 22:02:13 +0900
committerTakashi Iwai <tiwai@suse.de>2015-10-02 18:17:01 +0200
commit96e5fbb0dd128496378dbc404c2a894e49c1ac21 (patch)
treec5b38b9454bf69cf9b626bbabf93af5c9d8addd6 /sound/firewire
parent6f81ba19ace2282f2560f5ec3a827ec5370825cb (diff)
downloadop-kernel-dev-96e5fbb0dd128496378dbc404c2a894e49c1ac21.zip
op-kernel-dev-96e5fbb0dd128496378dbc404c2a894e49c1ac21.tar.gz
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: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/firewire')
-rw-r--r--sound/firewire/tascam/Makefile2
-rw-r--r--sound/firewire/tascam/tascam-proc.c88
-rw-r--r--sound/firewire/tascam/tascam.c2
-rw-r--r--sound/firewire/tascam/tascam.h10
4 files changed, 101 insertions, 1 deletions
diff --git a/sound/firewire/tascam/Makefile b/sound/firewire/tascam/Makefile
index 627129b..1555206 100644
--- a/sound/firewire/tascam/Makefile
+++ b/sound/firewire/tascam/Makefile
@@ -1,2 +1,2 @@
-snd-firewire-tascam-objs := tascam.o
+snd-firewire-tascam-objs := tascam-proc.o tascam.o
obj-$(CONFIG_SND_FIREWIRE_TASCAM) += snd-firewire-tascam.o
diff --git a/sound/firewire/tascam/tascam-proc.c b/sound/firewire/tascam/tascam-proc.c
new file mode 100644
index 0000000..bfd4a4c
--- /dev/null
+++ b/sound/firewire/tascam/tascam-proc.c
@@ -0,0 +1,88 @@
+/*
+ * 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);
+}
diff --git a/sound/firewire/tascam/tascam.c b/sound/firewire/tascam/tascam.c
index 9ac09cb..d7418c0 100644
--- a/sound/firewire/tascam/tascam.c
+++ b/sound/firewire/tascam/tascam.c
@@ -113,6 +113,8 @@ static int snd_tscm_probe(struct fw_unit *unit,
if (err < 0)
goto error;
+ snd_tscm_proc_init(tscm);
+
err = snd_card_register(card);
if (err < 0)
goto error;
diff --git a/sound/firewire/tascam/tascam.h b/sound/firewire/tascam/tascam.h
index e12f8b5..9ecc550 100644
--- a/sound/firewire/tascam/tascam.h
+++ b/sound/firewire/tascam/tascam.h
@@ -20,6 +20,7 @@
#include <sound/core.h>
#include <sound/initval.h>
+#include <sound/info.h>
#include "../lib.h"
@@ -43,4 +44,13 @@ struct snd_tscm {
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
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