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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 | // SPDX-License-Identifier: GPL-2.0-only /* * bebob_command.c - driver for BeBoB based devices * * Copyright (c) 2013-2014 Takashi Sakamoto */ #include "./bebob.h" int avc_audio_set_selector(struct fw_unit *unit, unsigned int subunit_id, unsigned int fb_id, unsigned int num) { u8 *buf; int err; buf = kzalloc(12, GFP_KERNEL); if (buf == NULL) return -ENOMEM; buf[0] = 0x00; /* AV/C CONTROL */ buf[1] = 0x08 | (0x07 & subunit_id); /* AUDIO SUBUNIT ID */ buf[2] = 0xb8; /* FUNCTION BLOCK */ buf[3] = 0x80; /* type is 'selector'*/ buf[4] = 0xff & fb_id; /* function block id */ buf[5] = 0x10; /* control attribute is CURRENT */ buf[6] = 0x02; /* selector length is 2 */ buf[7] = 0xff & num; /* input function block plug number */ buf[8] = 0x01; /* control selector is SELECTOR_CONTROL */ err = fcp_avc_transaction(unit, buf, 12, buf, 12, BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) | BIT(6) | BIT(7) | BIT(8)); if (err < 0) ; else if (err < 9) err = -EIO; else if (buf[0] == 0x08) /* NOT IMPLEMENTED */ err = -ENOSYS; else if (buf[0] == 0x0a) /* REJECTED */ err = -EINVAL; else err = 0; kfree(buf); return err; } int avc_audio_get_selector(struct fw_unit *unit, unsigned int subunit_id, unsigned int fb_id, unsigned int *num) { u8 *buf; int err; buf = kzalloc(12, GFP_KERNEL); if (buf == NULL) return -ENOMEM; buf[0] = 0x01; /* AV/C STATUS */ buf[1] = 0x08 | (0x07 & subunit_id); /* AUDIO SUBUNIT ID */ buf[2] = 0xb8; /* FUNCTION BLOCK */ buf[3] = 0x80; /* type is 'selector'*/ buf[4] = 0xff & fb_id; /* function block id */ buf[5] = 0x10; /* control attribute is CURRENT */ buf[6] = 0x02; /* selector length is 2 */ buf[7] = 0xff; /* input function block plug number */ buf[8] = 0x01; /* control selector is SELECTOR_CONTROL */ err = fcp_avc_transaction(unit, buf, 12, buf, 12, BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) | BIT(6) | BIT(8)); if (err < 0) ; else if (err < 9) err = -EIO; else if (buf[0] == 0x08) /* NOT IMPLEMENTED */ err = -ENOSYS; else if (buf[0] == 0x0a) /* REJECTED */ err = -EINVAL; else if (buf[0] == 0x0b) /* IN TRANSITION */ err = -EAGAIN; if (err < 0) goto end; *num = buf[7]; err = 0; end: kfree(buf); return err; } static inline void avc_bridgeco_fill_extension_addr(u8 *buf, u8 *addr) { buf[1] = addr[0]; memcpy(buf + 4, addr + 1, 5); } static inline void avc_bridgeco_fill_plug_info_extension_command(u8 *buf, u8 *addr, unsigned int itype) { buf[0] = 0x01; /* AV/C STATUS */ buf[2] = 0x02; /* AV/C GENERAL PLUG INFO */ buf[3] = 0xc0; /* BridgeCo extension */ avc_bridgeco_fill_extension_addr(buf, addr); buf[9] = itype; /* info type */ } int avc_bridgeco_get_plug_type(struct fw_unit *unit, u8 addr[AVC_BRIDGECO_ADDR_BYTES], enum avc_bridgeco_plug_type *type) { u8 *buf; int err; buf = kzalloc(12, GFP_KERNEL); if (buf == NULL) return -ENOMEM; /* Info type is 'plug type'. */ avc_bridgeco_fill_plug_info_extension_command(buf, addr, 0x00); err = fcp_avc_transaction(unit, buf, 12, buf, 12, BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) | BIT(6) | BIT(7) | BIT(9)); if (err < 0) ; else if (err < 11) err = -EIO; else if (buf[0] == 0x08) /* NOT IMPLEMENTED */ err = -ENOSYS; else if (buf[0] == 0x0a) /* REJECTED */ err = -EINVAL; else if (buf[0] == 0x0b) /* IN TRANSITION */ err = -EAGAIN; if (err < 0) goto end; *type = buf[10]; err = 0; end: kfree(buf); return err; } int avc_bridgeco_get_plug_ch_count(struct fw_unit *unit, u8 addr[AVC_BRIDGECO_ADDR_BYTES], unsigned int *ch_count) { u8 *buf; int err; buf = kzalloc(12, GFP_KERNEL); if (buf == NULL) return -ENOMEM; // Info type is 'plug type'. avc_bridgeco_fill_plug_info_extension_command(buf, addr, 0x02); err = fcp_avc_transaction(unit, buf, 12, buf, 12, BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) | BIT(6) | BIT(7) | BIT(9)); if (err < 0) ; else if (err < 11) err = -EIO; else if (buf[0] == 0x08) // NOT IMPLEMENTED err = -ENOSYS; else if (buf[0] == 0x0a) // REJECTED err = -EINVAL; else if (buf[0] == 0x0b) // IN TRANSITION err = -EAGAIN; if (err < 0) goto end; *ch_count = buf[10]; err = 0; end: kfree(buf); return err; } int avc_bridgeco_get_plug_ch_pos(struct fw_unit *unit, u8 addr[AVC_BRIDGECO_ADDR_BYTES], u8 *buf, unsigned int len) { int err; /* Info type is 'channel position'. */ avc_bridgeco_fill_plug_info_extension_command(buf, addr, 0x03); err = fcp_avc_transaction(unit, buf, 12, buf, 256, BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) | BIT(6) | BIT(7) | BIT(9)); if (err < 0) ; else if (err < 11) err = -EIO; else if (buf[0] == 0x08) /* NOT IMPLEMENTED */ err = -ENOSYS; else if (buf[0] == 0x0a) /* REJECTED */ err = -EINVAL; else if (buf[0] == 0x0b) /* IN TRANSITION */ err = -EAGAIN; if (err < 0) goto end; /* Pick up specific data. */ memmove(buf, buf + 10, err - 10); err = 0; end: return err; } int avc_bridgeco_get_plug_section_type(struct fw_unit *unit, u8 addr[AVC_BRIDGECO_ADDR_BYTES], unsigned int id, u8 *type) { u8 *buf; int err; /* section info includes charactors but this module don't need it */ buf = kzalloc(12, GFP_KERNEL); if (buf == NULL) return -ENOMEM; /* Info type is 'section info'. */ avc_bridgeco_fill_plug_info_extension_command(buf, addr, 0x07); buf[10] = 0xff & ++id; /* section id */ err = fcp_avc_transaction(unit, buf, 12, buf, 12, BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) | BIT(6) | BIT(7) | BIT(9) | BIT(10)); if (err < 0) ; else if (err < 12) err = -EIO; else if (buf[0] == 0x08) /* NOT IMPLEMENTED */ err = -ENOSYS; else if (buf[0] == 0x0a) /* REJECTED */ err = -EINVAL; else if (buf[0] == 0x0b) /* IN TRANSITION */ err = -EAGAIN; if (err < 0) goto end; *type = buf[11]; err = 0; end: kfree(buf); return err; } int avc_bridgeco_get_plug_input(struct fw_unit *unit, u8 addr[AVC_BRIDGECO_ADDR_BYTES], u8 input[7]) { int err; u8 *buf; buf = kzalloc(18, GFP_KERNEL); if (buf == NULL) return -ENOMEM; /* Info type is 'plug input'. */ avc_bridgeco_fill_plug_info_extension_command(buf, addr, 0x05); err = fcp_avc_transaction(unit, buf, 16, buf, 16, BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) | BIT(6) | BIT(7)); if (err < 0) ; else if (err < 16) err = -EIO; else if (buf[0] == 0x08) /* NOT IMPLEMENTED */ err = -ENOSYS; else if (buf[0] == 0x0a) /* REJECTED */ err = -EINVAL; else if (buf[0] == 0x0b) /* IN TRANSITION */ err = -EAGAIN; if (err < 0) goto end; memcpy(input, buf + 10, 5); err = 0; end: kfree(buf); return err; } int avc_bridgeco_get_plug_strm_fmt(struct fw_unit *unit, u8 addr[AVC_BRIDGECO_ADDR_BYTES], u8 *buf, unsigned int *len, unsigned int eid) { int err; /* check given buffer */ if ((buf == NULL) || (*len < 12)) { err = -EINVAL; goto end; } buf[0] = 0x01; /* AV/C STATUS */ buf[2] = 0x2f; /* AV/C STREAM FORMAT SUPPORT */ buf[3] = 0xc1; /* Bridgeco extension - List Request */ avc_bridgeco_fill_extension_addr(buf, addr); buf[10] = 0xff & eid; /* Entry ID */ err = fcp_avc_transaction(unit, buf, 12, buf, *len, BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) | BIT(6) | BIT(7) | BIT(10)); if (err < 0) ; else if (err < 12) err = -EIO; else if (buf[0] == 0x08) /* NOT IMPLEMENTED */ err = -ENOSYS; else if (buf[0] == 0x0a) /* REJECTED */ err = -EINVAL; else if (buf[0] == 0x0b) /* IN TRANSITION */ err = -EAGAIN; else if (buf[10] != eid) err = -EIO; if (err < 0) goto end; /* Pick up 'stream format info'. */ memmove(buf, buf + 11, err - 11); *len = err - 11; err = 0; end: return err; } |