/* * 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); } 0654df4ee1837566'/>
path: root/drivers/usb/host/whci/init.c
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authorRicardo Ribalda <ricardo.ribalda@gmail.com>2017-02-02 20:15:16 +0100
committerWolfram Sang <wsa@the-dreams.de>2017-02-09 17:13:01 +0100
commitbbb27fc33d44e7b8d96369810654df4ee1837566 (patch)
treeb769e165ad52c0021054f1a048b62bd7e4fbec47 /drivers/usb/host/whci/init.c
parentf43128c75202f29ee71aa83e6c320a911137c189 (diff)
i2c: piix4: Request the SMBUS semaphore inside the mutex
SMBSLVCNT must be protected with the piix4_mutex_sb800 in order to avoid multiple buses accessing to the semaphore at the same time. Fixes: 701dc207bf55 ("i2c: piix4: Avoid race conditions with IMC") Reported-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com> Signed-off-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Diffstat (limited to 'drivers/usb/host/whci/init.c')