1/*
2 * tascam-proc.h - a part of driver for TASCAM FireWire series
3 *
4 * Copyright (c) 2015 Takashi Sakamoto
5 *
6 * Licensed under the terms of the GNU General Public License, version 2.
7 */
8
9#include "./tascam.h"
10
11static void proc_read_firmware(struct snd_info_entry *entry,
12			       struct snd_info_buffer *buffer)
13{
14	struct snd_tscm *tscm = entry->private_data;
15	__be32 data;
16	unsigned int reg, fpga, arm, hw;
17	int err;
18
19	err = snd_fw_transaction(tscm->unit, TCODE_READ_QUADLET_REQUEST,
20			TSCM_ADDR_BASE + TSCM_OFFSET_FIRMWARE_REGISTER,
21			&data, sizeof(data), 0);
22	if (err < 0)
23		return;
24	reg = be32_to_cpu(data);
25
26	err = snd_fw_transaction(tscm->unit, TCODE_READ_QUADLET_REQUEST,
27			TSCM_ADDR_BASE + TSCM_OFFSET_FIRMWARE_FPGA,
28			&data, sizeof(data), 0);
29	if (err < 0)
30		return;
31	fpga = be32_to_cpu(data);
32
33	err = snd_fw_transaction(tscm->unit, TCODE_READ_QUADLET_REQUEST,
34			TSCM_ADDR_BASE + TSCM_OFFSET_FIRMWARE_ARM,
35			&data, sizeof(data), 0);
36	if (err < 0)
37		return;
38	arm = be32_to_cpu(data);
39
40	err = snd_fw_transaction(tscm->unit, TCODE_READ_QUADLET_REQUEST,
41			TSCM_ADDR_BASE + TSCM_OFFSET_FIRMWARE_HW,
42			&data, sizeof(data), 0);
43	if (err < 0)
44		return;
45	hw = be32_to_cpu(data);
46
47	snd_iprintf(buffer, "Register: %d (0x%08x)\n", reg & 0xffff, reg);
48	snd_iprintf(buffer, "FPGA:     %d (0x%08x)\n", fpga & 0xffff, fpga);
49	snd_iprintf(buffer, "ARM:      %d (0x%08x)\n", arm & 0xffff, arm);
50	snd_iprintf(buffer, "Hardware: %d (0x%08x)\n", hw >> 16, hw);
51}
52
53static void add_node(struct snd_tscm *tscm, struct snd_info_entry *root,
54		     const char *name,
55		     void (*op)(struct snd_info_entry *e,
56				struct snd_info_buffer *b))
57{
58	struct snd_info_entry *entry;
59
60	entry = snd_info_create_card_entry(tscm->card, name, root);
61	if (entry == NULL)
62		return;
63
64	snd_info_set_text_ops(entry, tscm, op);
65	if (snd_info_register(entry) < 0)
66		snd_info_free_entry(entry);
67}
68
69void snd_tscm_proc_init(struct snd_tscm *tscm)
70{
71	struct snd_info_entry *root;
72
73	/*
74	 * All nodes are automatically removed at snd_card_disconnect(),
75	 * by following to link list.
76	 */
77	root = snd_info_create_card_entry(tscm->card, "firewire",
78					  tscm->card->proc_root);
79	if (root == NULL)
80		return;
81	root->mode = S_IFDIR | S_IRUGO | S_IXUGO;
82	if (snd_info_register(root) < 0) {
83		snd_info_free_entry(root);
84		return;
85	}
86
87	add_node(tscm, root, "firmware", proc_read_firmware);
88}
89