80 lines · c
1// SPDX-License-Identifier: GPL-2.0-only2/*3 * tascam-proc.h - a part of driver for TASCAM FireWire series4 *5 * Copyright (c) 2015 Takashi Sakamoto6 */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