1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * tascam-proc.h - a part of driver for TASCAM FireWire series
4 *
5 * Copyright (c) 2015 Takashi Sakamoto
6 */
7
8#include "./tascam.h"
9
10static void proc_read_firmware(struct snd_info_entry *entry,
11			       struct snd_info_buffer *buffer)
12{
13	struct snd_tscm *tscm = entry->private_data;
14	__be32 data;
15	unsigned int reg, fpga, arm, hw;
16	int err;
17
18	err = snd_fw_transaction(tscm->unit, TCODE_READ_QUADLET_REQUEST,
19			TSCM_ADDR_BASE + TSCM_OFFSET_FIRMWARE_REGISTER,
20			&data, sizeof(data), 0);
21	if (err < 0)
22		return;
23	reg = be32_to_cpu(data);
24
25	err = snd_fw_transaction(tscm->unit, TCODE_READ_QUADLET_REQUEST,
26			TSCM_ADDR_BASE + TSCM_OFFSET_FIRMWARE_FPGA,
27			&data, sizeof(data), 0);
28	if (err < 0)
29		return;
30	fpga = be32_to_cpu(data);
31
32	err = snd_fw_transaction(tscm->unit, TCODE_READ_QUADLET_REQUEST,
33			TSCM_ADDR_BASE + TSCM_OFFSET_FIRMWARE_ARM,
34			&data, sizeof(data), 0);
35	if (err < 0)
36		return;
37	arm = be32_to_cpu(data);
38
39	err = snd_fw_transaction(tscm->unit, TCODE_READ_QUADLET_REQUEST,
40			TSCM_ADDR_BASE + TSCM_OFFSET_FIRMWARE_HW,
41			&data, sizeof(data), 0);
42	if (err < 0)
43		return;
44	hw = be32_to_cpu(data);
45
46	snd_iprintf(buffer, "Register: %d (0x%08x)\n", reg & 0xffff, reg);
47	snd_iprintf(buffer, "FPGA:     %d (0x%08x)\n", fpga & 0xffff, fpga);
48	snd_iprintf(buffer, "ARM:      %d (0x%08x)\n", arm & 0xffff, arm);
49	snd_iprintf(buffer, "Hardware: %d (0x%08x)\n", hw >> 16, hw);
50}
51
52static void add_node(struct snd_tscm *tscm, struct snd_info_entry *root,
53		     const char *name,
54		     void (*op)(struct snd_info_entry *e,
55				struct snd_info_buffer *b))
56{
57	struct snd_info_entry *entry;
58
59	entry = snd_info_create_card_entry(tscm->card, name, root);
60	if (entry)
61		snd_info_set_text_ops(entry, tscm, op);
62}
63
64void snd_tscm_proc_init(struct snd_tscm *tscm)
65{
66	struct snd_info_entry *root;
67
68	/*
69	 * All nodes are automatically removed at snd_card_disconnect(),
70	 * by following to link list.
71	 */
72	root = snd_info_create_card_entry(tscm->card, "firewire",
73					  tscm->card->proc_root);
74	if (root == NULL)
75		return;
76	root->mode = S_IFDIR | 0555;
77
78	add_node(tscm, root, "firmware", proc_read_firmware);
79}
80