mirror of https://gitee.com/openkylin/linux.git
100 lines
2.5 KiB
C
100 lines
2.5 KiB
C
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/*
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* digi00x-proc.c - a part of driver for Digidesign Digi 002/003 family
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*
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* Copyright (c) 2014-2015 Takashi Sakamoto
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*
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* Licensed under the terms of the GNU General Public License, version 2.
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*/
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#include "digi00x.h"
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static int get_optical_iface_mode(struct snd_dg00x *dg00x,
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enum snd_dg00x_optical_mode *mode)
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{
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__be32 data;
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int err;
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err = snd_fw_transaction(dg00x->unit, TCODE_READ_QUADLET_REQUEST,
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DG00X_ADDR_BASE + DG00X_OFFSET_OPT_IFACE_MODE,
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&data, sizeof(data), 0);
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if (err >= 0)
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*mode = be32_to_cpu(data) & 0x01;
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return err;
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}
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static void proc_read_clock(struct snd_info_entry *entry,
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struct snd_info_buffer *buf)
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{
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static const char *const source_name[] = {
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[SND_DG00X_CLOCK_INTERNAL] = "internal",
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[SND_DG00X_CLOCK_SPDIF] = "s/pdif",
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[SND_DG00X_CLOCK_ADAT] = "adat",
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[SND_DG00X_CLOCK_WORD] = "word clock",
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};
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static const char *const optical_name[] = {
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[SND_DG00X_OPT_IFACE_MODE_ADAT] = "adat",
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[SND_DG00X_OPT_IFACE_MODE_SPDIF] = "s/pdif",
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};
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struct snd_dg00x *dg00x = entry->private_data;
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enum snd_dg00x_optical_mode mode;
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unsigned int rate;
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enum snd_dg00x_clock clock;
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bool detect;
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if (get_optical_iface_mode(dg00x, &mode) < 0)
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return;
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if (snd_dg00x_stream_get_local_rate(dg00x, &rate) < 0)
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return;
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if (snd_dg00x_stream_get_clock(dg00x, &clock) < 0)
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return;
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snd_iprintf(buf, "Optical mode: %s\n", optical_name[mode]);
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snd_iprintf(buf, "Sampling Rate: %d\n", rate);
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snd_iprintf(buf, "Clock Source: %s\n", source_name[clock]);
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if (clock == SND_DG00X_CLOCK_INTERNAL)
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return;
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if (snd_dg00x_stream_check_external_clock(dg00x, &detect) < 0)
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return;
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snd_iprintf(buf, "External source: %s\n", detect ? "detected" : "not");
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if (!detect)
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return;
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if (snd_dg00x_stream_get_external_rate(dg00x, &rate) >= 0)
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snd_iprintf(buf, "External sampling rate: %d\n", rate);
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}
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void snd_dg00x_proc_init(struct snd_dg00x *dg00x)
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{
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struct snd_info_entry *root, *entry;
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/*
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* All nodes are automatically removed at snd_card_disconnect(),
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* by following to link list.
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*/
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root = snd_info_create_card_entry(dg00x->card, "firewire",
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dg00x->card->proc_root);
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if (root == NULL)
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return;
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root->mode = S_IFDIR | S_IRUGO | S_IXUGO;
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if (snd_info_register(root) < 0) {
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snd_info_free_entry(root);
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return;
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}
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entry = snd_info_create_card_entry(dg00x->card, "clock", root);
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if (entry == NULL) {
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snd_info_free_entry(root);
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return;
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}
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snd_info_set_text_ops(entry, dg00x, proc_read_clock);
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if (snd_info_register(entry) < 0) {
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snd_info_free_entry(entry);
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snd_info_free_entry(root);
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}
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}
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