cregit-Linux how code gets into the kernel

Release 4.7 sound/firewire/dice/dice-proc.c

/*
 * dice_proc.c - a part of driver for Dice based devices
 *
 * Copyright (c) Clemens Ladisch
 * Copyright (c) 2014 Takashi Sakamoto
 *
 * Licensed under the terms of the GNU General Public License, version 2.
 */

#include "dice.h"


static int dice_proc_read_mem(struct snd_dice *dice, void *buffer, unsigned int offset_q, unsigned int quadlets) { unsigned int i; int err; err = snd_fw_transaction(dice->unit, TCODE_READ_BLOCK_REQUEST, DICE_PRIVATE_SPACE + 4 * offset_q, buffer, 4 * quadlets, 0); if (err < 0) return err; for (i = 0; i < quadlets; ++i) be32_to_cpus(&((u32 *)buffer)[i]); return 0; }

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takashi sakamototakashi sakamoto95100.00%1100.00%
Total95100.00%1100.00%


static const char *str_from_array(const char *const strs[], unsigned int count, unsigned int i) { if (i < count) return strs[i]; return "(unknown)"; }

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takashi sakamototakashi sakamoto38100.00%1100.00%
Total38100.00%1100.00%


static void dice_proc_fixup_string(char *s, unsigned int size) { unsigned int i; for (i = 0; i < size; i += 4) cpu_to_le32s((u32 *)(s + i)); for (i = 0; i < size - 2; ++i) { if (s[i] == '\0') return; if (s[i] == '\\' && s[i + 1] == '\\') { s[i + 2] = '\0'; return; } } s[size - 1] = '\0'; }

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PersonTokensPropCommitsCommitProp
takashi sakamototakashi sakamoto111100.00%1100.00%
Total111100.00%1100.00%


static void dice_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) { static const char *const section_names[5] = { "global", "tx", "rx", "ext_sync", "unused2" }; static const char *const clock_sources[] = { "aes1", "aes2", "aes3", "aes4", "aes", "adat", "tdif", "wc", "arx1", "arx2", "arx3", "arx4", "internal" }; static const char *const rates[] = { "32000", "44100", "48000", "88200", "96000", "176400", "192000", "any low", "any mid", "any high", "none" }; struct snd_dice *dice = entry->private_data; u32 sections[ARRAY_SIZE(section_names) * 2]; struct { u32 number; u32 size; } tx_rx_header; union { struct { u32 owner_hi, owner_lo; u32 notification; char nick_name[NICK_NAME_SIZE]; u32 clock_select; u32 enable; u32 status; u32 extended_status; u32 sample_rate; u32 version; u32 clock_caps; char clock_source_names[CLOCK_SOURCE_NAMES_SIZE]; } global; struct { u32 iso; u32 number_audio; u32 number_midi; u32 speed; char names[TX_NAMES_SIZE]; u32 ac3_caps; u32 ac3_enable; } tx; struct { u32 iso; u32 seq_start; u32 number_audio; u32 number_midi; char names[RX_NAMES_SIZE]; u32 ac3_caps; u32 ac3_enable; } rx; struct { u32 clock_source; u32 locked; u32 rate; u32 adat_user_data; } ext_sync; } buf; unsigned int quadlets, stream, i; if (dice_proc_read_mem(dice, sections, 0, ARRAY_SIZE(sections)) < 0) return; snd_iprintf(buffer, "sections:\n"); for (i = 0; i < ARRAY_SIZE(section_names); ++i) snd_iprintf(buffer, " %s: offset %u, size %u\n", section_names[i], sections[i * 2], sections[i * 2 + 1]); quadlets = min_t(u32, sections[1], sizeof(buf.global) / 4); if (dice_proc_read_mem(dice, &buf.global, sections[0], quadlets) < 0) return; snd_iprintf(buffer, "global:\n"); snd_iprintf(buffer, " owner: %04x:%04x%08x\n", buf.global.owner_hi >> 16, buf.global.owner_hi & 0xffff, buf.global.owner_lo); snd_iprintf(buffer, " notification: %08x\n", buf.global.notification); dice_proc_fixup_string(buf.global.nick_name, NICK_NAME_SIZE); snd_iprintf(buffer, " nick name: %s\n", buf.global.nick_name); snd_iprintf(buffer, " clock select: %s %s\n", str_from_array(clock_sources, ARRAY_SIZE(clock_sources), buf.global.clock_select & CLOCK_SOURCE_MASK), str_from_array(rates, ARRAY_SIZE(rates), (buf.global.clock_select & CLOCK_RATE_MASK) >> CLOCK_RATE_SHIFT)); snd_iprintf(buffer, " enable: %u\n", buf.global.enable); snd_iprintf(buffer, " status: %slocked %s\n", buf.global.status & STATUS_SOURCE_LOCKED ? "" : "un", str_from_array(rates, ARRAY_SIZE(rates), (buf.global.status & STATUS_NOMINAL_RATE_MASK) >> CLOCK_RATE_SHIFT)); snd_iprintf(buffer, " ext status: %08x\n", buf.global.extended_status); snd_iprintf(buffer, " sample rate: %u\n", buf.global.sample_rate); snd_iprintf(buffer, " version: %u.%u.%u.%u\n", (buf.global.version >> 24) & 0xff, (buf.global.version >> 16) & 0xff, (buf.global.version >> 8) & 0xff, (buf.global.version >> 0) & 0xff); if (quadlets >= 90) { snd_iprintf(buffer, " clock caps:"); for (i = 0; i <= 6; ++i) if (buf.global.clock_caps & (1 << i)) snd_iprintf(buffer, " %s", rates[i]); for (i = 0; i <= 12; ++i) if (buf.global.clock_caps & (1 << (16 + i))) snd_iprintf(buffer, " %s", clock_sources[i]); snd_iprintf(buffer, "\n"); dice_proc_fixup_string(buf.global.clock_source_names, CLOCK_SOURCE_NAMES_SIZE); snd_iprintf(buffer, " clock source names: %s\n", buf.global.clock_source_names); } if (dice_proc_read_mem(dice, &tx_rx_header, sections[2], 2) < 0) return; quadlets = min_t(u32, tx_rx_header.size, sizeof(buf.tx) / 4); for (stream = 0; stream < tx_rx_header.number; ++stream) { if (dice_proc_read_mem(dice, &buf.tx, sections[2] + 2 + stream * tx_rx_header.size, quadlets) < 0) break; snd_iprintf(buffer, "tx %u:\n", stream); snd_iprintf(buffer, " iso channel: %d\n", (int)buf.tx.iso); snd_iprintf(buffer, " audio channels: %u\n", buf.tx.number_audio); snd_iprintf(buffer, " midi ports: %u\n", buf.tx.number_midi); snd_iprintf(buffer, " speed: S%u\n", 100u << buf.tx.speed); if (quadlets >= 68) { dice_proc_fixup_string(buf.tx.names, TX_NAMES_SIZE); snd_iprintf(buffer, " names: %s\n", buf.tx.names); } if (quadlets >= 70) { snd_iprintf(buffer, " ac3 caps: %08x\n", buf.tx.ac3_caps); snd_iprintf(buffer, " ac3 enable: %08x\n", buf.tx.ac3_enable); } } if (dice_proc_read_mem(dice, &tx_rx_header, sections[4], 2) < 0) return; quadlets = min_t(u32, tx_rx_header.size, sizeof(buf.rx) / 4); for (stream = 0; stream < tx_rx_header.number; ++stream) { if (dice_proc_read_mem(dice, &buf.rx, sections[4] + 2 + stream * tx_rx_header.size, quadlets) < 0) break; snd_iprintf(buffer, "rx %u:\n", stream); snd_iprintf(buffer, " iso channel: %d\n", (int)buf.rx.iso); snd_iprintf(buffer, " sequence start: %u\n", buf.rx.seq_start); snd_iprintf(buffer, " audio channels: %u\n", buf.rx.number_audio); snd_iprintf(buffer, " midi ports: %u\n", buf.rx.number_midi); if (quadlets >= 68) { dice_proc_fixup_string(buf.rx.names, RX_NAMES_SIZE); snd_iprintf(buffer, " names: %s\n", buf.rx.names); } if (quadlets >= 70) { snd_iprintf(buffer, " ac3 caps: %08x\n", buf.rx.ac3_caps); snd_iprintf(buffer, " ac3 enable: %08x\n", buf.rx.ac3_enable); } } quadlets = min_t(u32, sections[7], sizeof(buf.ext_sync) / 4); if (quadlets >= 4) { if (dice_proc_read_mem(dice, &buf.ext_sync, sections[6], 4) < 0) return; snd_iprintf(buffer, "ext status:\n"); snd_iprintf(buffer, " clock source: %s\n", str_from_array(clock_sources, ARRAY_SIZE(clock_sources), buf.ext_sync.clock_source)); snd_iprintf(buffer, " locked: %u\n", buf.ext_sync.locked); snd_iprintf(buffer, " rate: %s\n", str_from_array(rates, ARRAY_SIZE(rates), buf.ext_sync.rate)); snd_iprintf(buffer, " adat user data: "); if (buf.ext_sync.adat_user_data & ADAT_USER_DATA_NO_DATA) snd_iprintf(buffer, "-\n"); else snd_iprintf(buffer, "%x\n", buf.ext_sync.adat_user_data); } }

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PersonTokensPropCommitsCommitProp
takashi sakamototakashi sakamoto1358100.00%3100.00%
Total1358100.00%3100.00%


void snd_dice_create_proc(struct snd_dice *dice) { struct snd_info_entry *entry; if (!snd_card_proc_new(dice->card, "dice", &entry)) snd_info_set_text_ops(entry, dice, dice_proc_read); }

Contributors

PersonTokensPropCommitsCommitProp
takashi sakamototakashi sakamoto39100.00%1100.00%
Total39100.00%1100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
takashi sakamototakashi sakamoto1645100.00%3100.00%
Total1645100.00%3100.00%
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