Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Takashi Sakamoto | 1742 | 100.00% | 3 | 100.00% |
Total | 1742 | 3 |
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/* * bebob_command.c - driver for BeBoB based devices * * Copyright (c) 2013-2014 Takashi Sakamoto * * Licensed under the terms of the GNU General Public License, version 2. */ #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_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; }
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