Back to home page

OSCL-LXR

 
 

    


0001 // SPDX-License-Identifier: GPL-2.0-only
0002 /*
0003  * dice_proc.c - a part of driver for Dice based devices
0004  *
0005  * Copyright (c) Clemens Ladisch
0006  * Copyright (c) 2014 Takashi Sakamoto
0007  */
0008 
0009 #include "dice.h"
0010 
0011 static int dice_proc_read_mem(struct snd_dice *dice, void *buffer,
0012                   unsigned int offset_q, unsigned int quadlets)
0013 {
0014     unsigned int i;
0015     int err;
0016 
0017     err = snd_fw_transaction(dice->unit, TCODE_READ_BLOCK_REQUEST,
0018                  DICE_PRIVATE_SPACE + 4 * offset_q,
0019                  buffer, 4 * quadlets, 0);
0020     if (err < 0)
0021         return err;
0022 
0023     for (i = 0; i < quadlets; ++i)
0024         be32_to_cpus(&((u32 *)buffer)[i]);
0025 
0026     return 0;
0027 }
0028 
0029 static const char *str_from_array(const char *const strs[], unsigned int count,
0030                   unsigned int i)
0031 {
0032     if (i < count)
0033         return strs[i];
0034 
0035     return "(unknown)";
0036 }
0037 
0038 static void dice_proc_fixup_string(char *s, unsigned int size)
0039 {
0040     unsigned int i;
0041 
0042     for (i = 0; i < size; i += 4)
0043         cpu_to_le32s((u32 *)(s + i));
0044 
0045     for (i = 0; i < size - 2; ++i) {
0046         if (s[i] == '\0')
0047             return;
0048         if (s[i] == '\\' && s[i + 1] == '\\') {
0049             s[i + 2] = '\0';
0050             return;
0051         }
0052     }
0053     s[size - 1] = '\0';
0054 }
0055 
0056 static void dice_proc_read(struct snd_info_entry *entry,
0057                struct snd_info_buffer *buffer)
0058 {
0059     static const char *const section_names[5] = {
0060         "global", "tx", "rx", "ext_sync", "unused2"
0061     };
0062     static const char *const clock_sources[] = {
0063         "aes1", "aes2", "aes3", "aes4", "aes", "adat", "tdif",
0064         "wc", "arx1", "arx2", "arx3", "arx4", "internal"
0065     };
0066     static const char *const rates[] = {
0067         "32000", "44100", "48000", "88200", "96000", "176400", "192000",
0068         "any low", "any mid", "any high", "none"
0069     };
0070     struct snd_dice *dice = entry->private_data;
0071     u32 sections[ARRAY_SIZE(section_names) * 2];
0072     struct {
0073         u32 number;
0074         u32 size;
0075     } tx_rx_header;
0076     union {
0077         struct {
0078             u32 owner_hi, owner_lo;
0079             u32 notification;
0080             char nick_name[NICK_NAME_SIZE];
0081             u32 clock_select;
0082             u32 enable;
0083             u32 status;
0084             u32 extended_status;
0085             u32 sample_rate;
0086             u32 version;
0087             u32 clock_caps;
0088             char clock_source_names[CLOCK_SOURCE_NAMES_SIZE];
0089         } global;
0090         struct {
0091             u32 iso;
0092             u32 number_audio;
0093             u32 number_midi;
0094             u32 speed;
0095             char names[TX_NAMES_SIZE];
0096             u32 ac3_caps;
0097             u32 ac3_enable;
0098         } tx;
0099         struct {
0100             u32 iso;
0101             u32 seq_start;
0102             u32 number_audio;
0103             u32 number_midi;
0104             char names[RX_NAMES_SIZE];
0105             u32 ac3_caps;
0106             u32 ac3_enable;
0107         } rx;
0108         struct {
0109             u32 clock_source;
0110             u32 locked;
0111             u32 rate;
0112             u32 adat_user_data;
0113         } ext_sync;
0114     } buf;
0115     unsigned int quadlets, stream, i;
0116 
0117     if (dice_proc_read_mem(dice, sections, 0, ARRAY_SIZE(sections)) < 0)
0118         return;
0119     snd_iprintf(buffer, "sections:\n");
0120     for (i = 0; i < ARRAY_SIZE(section_names); ++i)
0121         snd_iprintf(buffer, "  %s: offset %u, size %u\n",
0122                 section_names[i],
0123                 sections[i * 2], sections[i * 2 + 1]);
0124 
0125     quadlets = min_t(u32, sections[1], sizeof(buf.global) / 4);
0126     if (dice_proc_read_mem(dice, &buf.global, sections[0], quadlets) < 0)
0127         return;
0128     snd_iprintf(buffer, "global:\n");
0129     snd_iprintf(buffer, "  owner: %04x:%04x%08x\n",
0130             buf.global.owner_hi >> 16,
0131             buf.global.owner_hi & 0xffff, buf.global.owner_lo);
0132     snd_iprintf(buffer, "  notification: %08x\n", buf.global.notification);
0133     dice_proc_fixup_string(buf.global.nick_name, NICK_NAME_SIZE);
0134     snd_iprintf(buffer, "  nick name: %s\n", buf.global.nick_name);
0135     snd_iprintf(buffer, "  clock select: %s %s\n",
0136             str_from_array(clock_sources, ARRAY_SIZE(clock_sources),
0137                    buf.global.clock_select & CLOCK_SOURCE_MASK),
0138             str_from_array(rates, ARRAY_SIZE(rates),
0139                    (buf.global.clock_select & CLOCK_RATE_MASK)
0140                    >> CLOCK_RATE_SHIFT));
0141     snd_iprintf(buffer, "  enable: %u\n", buf.global.enable);
0142     snd_iprintf(buffer, "  status: %slocked %s\n",
0143             buf.global.status & STATUS_SOURCE_LOCKED ? "" : "un",
0144             str_from_array(rates, ARRAY_SIZE(rates),
0145                    (buf.global.status &
0146                     STATUS_NOMINAL_RATE_MASK)
0147                    >> CLOCK_RATE_SHIFT));
0148     snd_iprintf(buffer, "  ext status: %08x\n", buf.global.extended_status);
0149     snd_iprintf(buffer, "  sample rate: %u\n", buf.global.sample_rate);
0150     if (quadlets >= 90) {
0151         snd_iprintf(buffer, "  version: %u.%u.%u.%u\n",
0152                 (buf.global.version >> 24) & 0xff,
0153                 (buf.global.version >> 16) & 0xff,
0154                 (buf.global.version >>  8) & 0xff,
0155                 (buf.global.version >>  0) & 0xff);
0156         snd_iprintf(buffer, "  clock caps:");
0157         for (i = 0; i <= 6; ++i)
0158             if (buf.global.clock_caps & (1 << i))
0159                 snd_iprintf(buffer, " %s", rates[i]);
0160         for (i = 0; i <= 12; ++i)
0161             if (buf.global.clock_caps & (1 << (16 + i)))
0162                 snd_iprintf(buffer, " %s", clock_sources[i]);
0163         snd_iprintf(buffer, "\n");
0164         dice_proc_fixup_string(buf.global.clock_source_names,
0165                        CLOCK_SOURCE_NAMES_SIZE);
0166         snd_iprintf(buffer, "  clock source names: %s\n",
0167                 buf.global.clock_source_names);
0168     }
0169 
0170     if (dice_proc_read_mem(dice, &tx_rx_header, sections[2], 2) < 0)
0171         return;
0172     quadlets = min_t(u32, tx_rx_header.size, sizeof(buf.tx) / 4);
0173     for (stream = 0; stream < tx_rx_header.number; ++stream) {
0174         if (dice_proc_read_mem(dice, &buf.tx, sections[2] + 2 +
0175                        stream * tx_rx_header.size,
0176                        quadlets) < 0)
0177             break;
0178         snd_iprintf(buffer, "tx %u:\n", stream);
0179         snd_iprintf(buffer, "  iso channel: %d\n", (int)buf.tx.iso);
0180         snd_iprintf(buffer, "  audio channels: %u\n",
0181                 buf.tx.number_audio);
0182         snd_iprintf(buffer, "  midi ports: %u\n", buf.tx.number_midi);
0183         snd_iprintf(buffer, "  speed: S%u\n", 100u << buf.tx.speed);
0184         if (quadlets >= 68) {
0185             dice_proc_fixup_string(buf.tx.names, TX_NAMES_SIZE);
0186             snd_iprintf(buffer, "  names: %s\n", buf.tx.names);
0187         }
0188         if (quadlets >= 70) {
0189             snd_iprintf(buffer, "  ac3 caps: %08x\n",
0190                     buf.tx.ac3_caps);
0191             snd_iprintf(buffer, "  ac3 enable: %08x\n",
0192                     buf.tx.ac3_enable);
0193         }
0194     }
0195 
0196     if (dice_proc_read_mem(dice, &tx_rx_header, sections[4], 2) < 0)
0197         return;
0198     quadlets = min_t(u32, tx_rx_header.size, sizeof(buf.rx) / 4);
0199     for (stream = 0; stream < tx_rx_header.number; ++stream) {
0200         if (dice_proc_read_mem(dice, &buf.rx, sections[4] + 2 +
0201                        stream * tx_rx_header.size,
0202                        quadlets) < 0)
0203             break;
0204         snd_iprintf(buffer, "rx %u:\n", stream);
0205         snd_iprintf(buffer, "  iso channel: %d\n", (int)buf.rx.iso);
0206         snd_iprintf(buffer, "  sequence start: %u\n", buf.rx.seq_start);
0207         snd_iprintf(buffer, "  audio channels: %u\n",
0208                 buf.rx.number_audio);
0209         snd_iprintf(buffer, "  midi ports: %u\n", buf.rx.number_midi);
0210         if (quadlets >= 68) {
0211             dice_proc_fixup_string(buf.rx.names, RX_NAMES_SIZE);
0212             snd_iprintf(buffer, "  names: %s\n", buf.rx.names);
0213         }
0214         if (quadlets >= 70) {
0215             snd_iprintf(buffer, "  ac3 caps: %08x\n",
0216                     buf.rx.ac3_caps);
0217             snd_iprintf(buffer, "  ac3 enable: %08x\n",
0218                     buf.rx.ac3_enable);
0219         }
0220     }
0221 
0222     quadlets = min_t(u32, sections[7], sizeof(buf.ext_sync) / 4);
0223     if (quadlets >= 4) {
0224         if (dice_proc_read_mem(dice, &buf.ext_sync,
0225                        sections[6], 4) < 0)
0226             return;
0227         snd_iprintf(buffer, "ext status:\n");
0228         snd_iprintf(buffer, "  clock source: %s\n",
0229                 str_from_array(clock_sources,
0230                        ARRAY_SIZE(clock_sources),
0231                        buf.ext_sync.clock_source));
0232         snd_iprintf(buffer, "  locked: %u\n", buf.ext_sync.locked);
0233         snd_iprintf(buffer, "  rate: %s\n",
0234                 str_from_array(rates, ARRAY_SIZE(rates),
0235                        buf.ext_sync.rate));
0236         snd_iprintf(buffer, "  adat user data: ");
0237         if (buf.ext_sync.adat_user_data & ADAT_USER_DATA_NO_DATA)
0238             snd_iprintf(buffer, "-\n");
0239         else
0240             snd_iprintf(buffer, "%x\n",
0241                     buf.ext_sync.adat_user_data);
0242     }
0243 }
0244 
0245 static void dice_proc_read_formation(struct snd_info_entry *entry,
0246                      struct snd_info_buffer *buffer)
0247 {
0248     static const char *const rate_labels[] = {
0249         [SND_DICE_RATE_MODE_LOW]    = "low",
0250         [SND_DICE_RATE_MODE_MIDDLE] = "middle",
0251         [SND_DICE_RATE_MODE_HIGH]   = "high",
0252     };
0253     struct snd_dice *dice = entry->private_data;
0254     int i, j;
0255 
0256     snd_iprintf(buffer, "Output stream from unit:\n");
0257     for (i = 0; i < SND_DICE_RATE_MODE_COUNT; ++i)
0258         snd_iprintf(buffer, "\t%s", rate_labels[i]);
0259     snd_iprintf(buffer, "\tMIDI\n");
0260     for (i = 0; i < MAX_STREAMS; ++i) {
0261         snd_iprintf(buffer, "Tx %u:", i);
0262         for (j = 0; j < SND_DICE_RATE_MODE_COUNT; ++j)
0263             snd_iprintf(buffer, "\t%u", dice->tx_pcm_chs[i][j]);
0264         snd_iprintf(buffer, "\t%u\n", dice->tx_midi_ports[i]);
0265     }
0266 
0267     snd_iprintf(buffer, "Input stream to unit:\n");
0268     for (i = 0; i < SND_DICE_RATE_MODE_COUNT; ++i)
0269         snd_iprintf(buffer, "\t%s", rate_labels[i]);
0270     snd_iprintf(buffer, "\n");
0271     for (i = 0; i < MAX_STREAMS; ++i) {
0272         snd_iprintf(buffer, "Rx %u:", i);
0273         for (j = 0; j < SND_DICE_RATE_MODE_COUNT; ++j)
0274             snd_iprintf(buffer, "\t%u", dice->rx_pcm_chs[i][j]);
0275         snd_iprintf(buffer, "\t%u\n", dice->rx_midi_ports[i]);
0276     }
0277 }
0278 
0279 static void add_node(struct snd_dice *dice, struct snd_info_entry *root,
0280              const char *name,
0281              void (*op)(struct snd_info_entry *entry,
0282                 struct snd_info_buffer *buffer))
0283 {
0284     struct snd_info_entry *entry;
0285 
0286     entry = snd_info_create_card_entry(dice->card, name, root);
0287     if (entry)
0288         snd_info_set_text_ops(entry, dice, op);
0289 }
0290 
0291 void snd_dice_create_proc(struct snd_dice *dice)
0292 {
0293     struct snd_info_entry *root;
0294 
0295     /*
0296      * All nodes are automatically removed at snd_card_disconnect(),
0297      * by following to link list.
0298      */
0299     root = snd_info_create_card_entry(dice->card, "firewire",
0300                       dice->card->proc_root);
0301     if (!root)
0302         return;
0303     root->mode = S_IFDIR | 0555;
0304 
0305     add_node(dice, root, "dice", dice_proc_read);
0306     add_node(dice, root, "formation", dice_proc_read_formation);
0307 }