From 03dd4cb26d967f9588437b0fc9cc0e8353322bb7 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Fri, 25 Mar 2016 03:53:42 -0300 Subject: Linux-libre 4.5-gnu --- sound/firewire/oxfw/oxfw-control.c | 283 ------------------------------------- 1 file changed, 283 deletions(-) delete mode 100644 sound/firewire/oxfw/oxfw-control.c (limited to 'sound/firewire/oxfw/oxfw-control.c') diff --git a/sound/firewire/oxfw/oxfw-control.c b/sound/firewire/oxfw/oxfw-control.c deleted file mode 100644 index 02a1cb90f..000000000 --- a/sound/firewire/oxfw/oxfw-control.c +++ /dev/null @@ -1,283 +0,0 @@ -/* - * oxfw_stream.c - a part of driver for OXFW970/971 based devices - * - * Copyright (c) Clemens Ladisch - * Licensed under the terms of the GNU General Public License, version 2. - */ - -#include "oxfw.h" - -enum control_action { CTL_READ, CTL_WRITE }; -enum control_attribute { - CTL_MIN = 0x02, - CTL_MAX = 0x03, - CTL_CURRENT = 0x10, -}; - -static int oxfw_mute_command(struct snd_oxfw *oxfw, bool *value, - enum control_action action) -{ - u8 *buf; - u8 response_ok; - int err; - - buf = kmalloc(11, GFP_KERNEL); - if (!buf) - return -ENOMEM; - - if (action == CTL_READ) { - buf[0] = 0x01; /* AV/C, STATUS */ - response_ok = 0x0c; /* STABLE */ - } else { - buf[0] = 0x00; /* AV/C, CONTROL */ - response_ok = 0x09; /* ACCEPTED */ - } - buf[1] = 0x08; /* audio unit 0 */ - buf[2] = 0xb8; /* FUNCTION BLOCK */ - buf[3] = 0x81; /* function block type: feature */ - buf[4] = oxfw->device_info->mute_fb_id; /* function block ID */ - buf[5] = 0x10; /* control attribute: current */ - buf[6] = 0x02; /* selector length */ - buf[7] = 0x00; /* audio channel number */ - buf[8] = 0x01; /* control selector: mute */ - buf[9] = 0x01; /* control data length */ - if (action == CTL_READ) - buf[10] = 0xff; - else - buf[10] = *value ? 0x70 : 0x60; - - err = fcp_avc_transaction(oxfw->unit, buf, 11, buf, 11, 0x3fe); - if (err < 0) - goto error; - if (err < 11) { - dev_err(&oxfw->unit->device, "short FCP response\n"); - err = -EIO; - goto error; - } - if (buf[0] != response_ok) { - dev_err(&oxfw->unit->device, "mute command failed\n"); - err = -EIO; - goto error; - } - if (action == CTL_READ) - *value = buf[10] == 0x70; - - err = 0; - -error: - kfree(buf); - - return err; -} - -static int oxfw_volume_command(struct snd_oxfw *oxfw, s16 *value, - unsigned int channel, - enum control_attribute attribute, - enum control_action action) -{ - u8 *buf; - u8 response_ok; - int err; - - buf = kmalloc(12, GFP_KERNEL); - if (!buf) - return -ENOMEM; - - if (action == CTL_READ) { - buf[0] = 0x01; /* AV/C, STATUS */ - response_ok = 0x0c; /* STABLE */ - } else { - buf[0] = 0x00; /* AV/C, CONTROL */ - response_ok = 0x09; /* ACCEPTED */ - } - buf[1] = 0x08; /* audio unit 0 */ - buf[2] = 0xb8; /* FUNCTION BLOCK */ - buf[3] = 0x81; /* function block type: feature */ - buf[4] = oxfw->device_info->volume_fb_id; /* function block ID */ - buf[5] = attribute; /* control attribute */ - buf[6] = 0x02; /* selector length */ - buf[7] = channel; /* audio channel number */ - buf[8] = 0x02; /* control selector: volume */ - buf[9] = 0x02; /* control data length */ - if (action == CTL_READ) { - buf[10] = 0xff; - buf[11] = 0xff; - } else { - buf[10] = *value >> 8; - buf[11] = *value; - } - - err = fcp_avc_transaction(oxfw->unit, buf, 12, buf, 12, 0x3fe); - if (err < 0) - goto error; - if (err < 12) { - dev_err(&oxfw->unit->device, "short FCP response\n"); - err = -EIO; - goto error; - } - if (buf[0] != response_ok) { - dev_err(&oxfw->unit->device, "volume command failed\n"); - err = -EIO; - goto error; - } - if (action == CTL_READ) - *value = (buf[10] << 8) | buf[11]; - - err = 0; - -error: - kfree(buf); - - return err; -} - -static int oxfw_mute_get(struct snd_kcontrol *control, - struct snd_ctl_elem_value *value) -{ - struct snd_oxfw *oxfw = control->private_data; - - value->value.integer.value[0] = !oxfw->mute; - - return 0; -} - -static int oxfw_mute_put(struct snd_kcontrol *control, - struct snd_ctl_elem_value *value) -{ - struct snd_oxfw *oxfw = control->private_data; - bool mute; - int err; - - mute = !value->value.integer.value[0]; - - if (mute == oxfw->mute) - return 0; - - err = oxfw_mute_command(oxfw, &mute, CTL_WRITE); - if (err < 0) - return err; - oxfw->mute = mute; - - return 1; -} - -static int oxfw_volume_info(struct snd_kcontrol *control, - struct snd_ctl_elem_info *info) -{ - struct snd_oxfw *oxfw = control->private_data; - - info->type = SNDRV_CTL_ELEM_TYPE_INTEGER; - info->count = oxfw->device_info->mixer_channels; - info->value.integer.min = oxfw->volume_min; - info->value.integer.max = oxfw->volume_max; - - return 0; -} - -static const u8 channel_map[6] = { 0, 1, 4, 5, 2, 3 }; - -static int oxfw_volume_get(struct snd_kcontrol *control, - struct snd_ctl_elem_value *value) -{ - struct snd_oxfw *oxfw = control->private_data; - unsigned int i; - - for (i = 0; i < oxfw->device_info->mixer_channels; ++i) - value->value.integer.value[channel_map[i]] = oxfw->volume[i]; - - return 0; -} - -static int oxfw_volume_put(struct snd_kcontrol *control, - struct snd_ctl_elem_value *value) -{ - struct snd_oxfw *oxfw = control->private_data; - unsigned int i, changed_channels; - bool equal_values = true; - s16 volume; - int err; - - for (i = 0; i < oxfw->device_info->mixer_channels; ++i) { - if (value->value.integer.value[i] < oxfw->volume_min || - value->value.integer.value[i] > oxfw->volume_max) - return -EINVAL; - if (value->value.integer.value[i] != - value->value.integer.value[0]) - equal_values = false; - } - - changed_channels = 0; - for (i = 0; i < oxfw->device_info->mixer_channels; ++i) - if (value->value.integer.value[channel_map[i]] != - oxfw->volume[i]) - changed_channels |= 1 << (i + 1); - - if (equal_values && changed_channels != 0) - changed_channels = 1 << 0; - - for (i = 0; i <= oxfw->device_info->mixer_channels; ++i) { - volume = value->value.integer.value[channel_map[i ? i - 1 : 0]]; - if (changed_channels & (1 << i)) { - err = oxfw_volume_command(oxfw, &volume, i, - CTL_CURRENT, CTL_WRITE); - if (err < 0) - return err; - } - if (i > 0) - oxfw->volume[i - 1] = volume; - } - - return changed_channels != 0; -} - -int snd_oxfw_create_mixer(struct snd_oxfw *oxfw) -{ - static const struct snd_kcontrol_new controls[] = { - { - .iface = SNDRV_CTL_ELEM_IFACE_MIXER, - .name = "PCM Playback Switch", - .info = snd_ctl_boolean_mono_info, - .get = oxfw_mute_get, - .put = oxfw_mute_put, - }, - { - .iface = SNDRV_CTL_ELEM_IFACE_MIXER, - .name = "PCM Playback Volume", - .info = oxfw_volume_info, - .get = oxfw_volume_get, - .put = oxfw_volume_put, - }, - }; - unsigned int i, first_ch; - int err; - - err = oxfw_volume_command(oxfw, &oxfw->volume_min, - 0, CTL_MIN, CTL_READ); - if (err < 0) - return err; - err = oxfw_volume_command(oxfw, &oxfw->volume_max, - 0, CTL_MAX, CTL_READ); - if (err < 0) - return err; - - err = oxfw_mute_command(oxfw, &oxfw->mute, CTL_READ); - if (err < 0) - return err; - - first_ch = oxfw->device_info->mixer_channels == 1 ? 0 : 1; - for (i = 0; i < oxfw->device_info->mixer_channels; ++i) { - err = oxfw_volume_command(oxfw, &oxfw->volume[i], - first_ch + i, CTL_CURRENT, CTL_READ); - if (err < 0) - return err; - } - - for (i = 0; i < ARRAY_SIZE(controls); ++i) { - err = snd_ctl_add(oxfw->card, - snd_ctl_new1(&controls[i], oxfw)); - if (err < 0) - return err; - } - - return 0; -} -- cgit v1.2.3-54-g00ecf