From eb7b3a056cd8130e45c4494fb27de54d53ce9f31 Mon Sep 17 00:00:00 2001 From: Takashi Sakamoto Date: Fri, 25 Apr 2014 22:45:15 +0900 Subject: ALSA: bebob: Add commands and connections/streams management This commit adds management functionality for connections and streams. BeBoB uses CMP to manage connections and uses AMDTP for streams. This commit also adds some BridgeCo's AV/C extension commands. There are some BridgeCo's AV/C extension commands but this commit just uses below commands to get device's capability and status: 1.Extended Plug Info commands - Plug Channel Position Specific Data - Plug Type Specific Data - Cluster(Section) Info Specific Data - Plug Input Specific Data 2.Extended Stream Format Information commands - Extended Stream Format Information Command - List Request For Extended Plug Info commands for Cluster Info Specific Data, I pick up 'section' instead of 'cluster' from document to prevent from misunderstanding because 'cluster' is also used in IEC 61883-6. Signed-off-by: Takashi Sakamoto Signed-off-by: Takashi Iwai --- sound/firewire/bebob/bebob_command.c | 205 +++++++++++++++++++++++++++++++++++ 1 file changed, 205 insertions(+) create mode 100644 sound/firewire/bebob/bebob_command.c (limited to 'sound/firewire/bebob/bebob_command.c') diff --git a/sound/firewire/bebob/bebob_command.c b/sound/firewire/bebob/bebob_command.c new file mode 100644 index 000000000000..6a017951a888 --- /dev/null +++ b/sound/firewire/bebob/bebob_command.c @@ -0,0 +1,205 @@ +/* + * 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" + +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) && (err < 8)) + 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) && (err < 8)) + 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) && (err < 8)) + 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) && (err < 8)) + 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) && (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; +} -- cgit v1.2.2 From 1fc9522a084f36d042298ef15893cf07d66a54bc Mon Sep 17 00:00:00 2001 From: Takashi Sakamoto Date: Fri, 25 Apr 2014 22:45:21 +0900 Subject: ALSA: bebob: Prepare for device specific operations This commit is for some devices which have its own operations or quirks. Many functionality should be implemented in user land. Then this commit adds functionality related to stream such as sampling frequency or clock source. For help to debug, this commit adds the functionality to get metering information if it's available. To help these functionalities, this commit adds some AV/C commands defined in 'AV/C Audio Subunit Specification (1394TA). Signed-off-by: Takashi Sakamoto Signed-off-by: Takashi Iwai --- sound/firewire/bebob/bebob_command.c | 77 ++++++++++++++++++++++++++++++++++++ 1 file changed, 77 insertions(+) (limited to 'sound/firewire/bebob/bebob_command.c') diff --git a/sound/firewire/bebob/bebob_command.c b/sound/firewire/bebob/bebob_command.c index 6a017951a888..9402cc15dbc1 100644 --- a/sound/firewire/bebob/bebob_command.c +++ b/sound/firewire/bebob/bebob_command.c @@ -8,6 +8,83 @@ #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 && err < 9) + err = -EIO; + else if (buf[0] == 0x08) /* NOT IMPLEMENTED */ + err = -ENOSYS; + else if (buf[0] == 0x0a) /* REJECTED */ + err = -EINVAL; + else if (err > 0) + 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 && 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) { -- cgit v1.2.2