From 5e22fe488ed7209c6e470e542826da4674e93338 Mon Sep 17 00:00:00 2001 From: Max Kellermann Date: Sat, 17 Sep 2011 08:54:50 +0200 Subject: output: rename plugin source files --- src/output/mvp_output_plugin.c | 334 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 334 insertions(+) create mode 100644 src/output/mvp_output_plugin.c (limited to 'src/output/mvp_output_plugin.c') diff --git a/src/output/mvp_output_plugin.c b/src/output/mvp_output_plugin.c new file mode 100644 index 000000000..be4c8dbc0 --- /dev/null +++ b/src/output/mvp_output_plugin.c @@ -0,0 +1,334 @@ +/* + * Copyright (C) 2003-2011 The Music Player Daemon Project + * http://www.musicpd.org + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +/* + * Media MVP audio output based on code from MVPMC project: + * http://mvpmc.sourceforge.net/ + */ + +#include "config.h" +#include "output_api.h" +#include "fd_util.h" + +#include + +#include +#include +#include +#include +#include +#include +#include + +#undef G_LOG_DOMAIN +#define G_LOG_DOMAIN "mvp" + +typedef struct { + unsigned long dsp_status; + unsigned long stream_decode_type; + unsigned long sample_rate; + unsigned long bit_rate; + unsigned long raw[64 / sizeof(unsigned long)]; +} aud_status_t; + +#define MVP_SET_AUD_STOP _IOW('a',1,int) +#define MVP_SET_AUD_PLAY _IOW('a',2,int) +#define MVP_SET_AUD_PAUSE _IOW('a',3,int) +#define MVP_SET_AUD_UNPAUSE _IOW('a',4,int) +#define MVP_SET_AUD_SRC _IOW('a',5,int) +#define MVP_SET_AUD_MUTE _IOW('a',6,int) +#define MVP_SET_AUD_BYPASS _IOW('a',8,int) +#define MVP_SET_AUD_CHANNEL _IOW('a',9,int) +#define MVP_GET_AUD_STATUS _IOR('a',10,aud_status_t) +#define MVP_SET_AUD_VOLUME _IOW('a',13,int) +#define MVP_GET_AUD_VOLUME _IOR('a',14,int) +#define MVP_SET_AUD_STREAMTYPE _IOW('a',15,int) +#define MVP_SET_AUD_FORMAT _IOW('a',16,int) +#define MVP_GET_AUD_SYNC _IOR('a',21,pts_sync_data_t*) +#define MVP_SET_AUD_STC _IOW('a',22,long long int *) +#define MVP_SET_AUD_SYNC _IOW('a',23,int) +#define MVP_SET_AUD_END_STREAM _IOW('a',25,int) +#define MVP_SET_AUD_RESET _IOW('a',26,int) +#define MVP_SET_AUD_DAC_CLK _IOW('a',27,int) +#define MVP_GET_AUD_REGS _IOW('a',28,aud_ctl_regs_t*) + +struct mvp_data { + struct audio_format audio_format; + int fd; +}; + +static const unsigned mvp_sample_rates[][3] = { + {9, 8000, 32000}, + {10, 11025, 44100}, + {11, 12000, 48000}, + {1, 16000, 32000}, + {2, 22050, 44100}, + {3, 24000, 48000}, + {5, 32000, 32000}, + {0, 44100, 44100}, + {7, 48000, 48000}, + {13, 64000, 32000}, + {14, 88200, 44100}, + {15, 96000, 48000} +}; + +/** + * The quark used for GError.domain. + */ +static inline GQuark +mvp_output_quark(void) +{ + return g_quark_from_static_string("mvp_output"); +} + +/** + * Translate a sample rate to a MVP sample rate. + * + * @param sample_rate the sample rate in Hz + */ +static unsigned +mvp_find_sample_rate(unsigned sample_rate) +{ + for (unsigned i = 0; i < G_N_ELEMENTS(mvp_sample_rates); ++i) + if (mvp_sample_rates[i][1] == sample_rate) + return mvp_sample_rates[i][0]; + + return (unsigned)-1; +} + +static bool +mvp_output_test_default_device(void) +{ + int fd; + + fd = open_cloexec("/dev/adec_pcm", O_WRONLY, 0); + + if (fd >= 0) { + close(fd); + return true; + } + + g_warning("Error opening PCM device \"/dev/adec_pcm\": %s\n", + strerror(errno)); + + return false; +} + +static void * +mvp_output_init(G_GNUC_UNUSED const struct audio_format *audio_format, + G_GNUC_UNUSED const struct config_param *param, + G_GNUC_UNUSED GError **error) +{ + struct mvp_data *md = g_new(struct mvp_data, 1); + md->fd = -1; + + return md; +} + +static void +mvp_output_finish(void *data) +{ + struct mvp_data *md = data; + g_free(md); +} + +static bool +mvp_set_pcm_params(struct mvp_data *md, struct audio_format *audio_format, + GError **error) +{ + unsigned mix[5]; + + switch (audio_format->channels) { + case 1: + mix[0] = 1; + break; + + case 2: + mix[0] = 0; + break; + + default: + g_debug("unsupported channel count %u - falling back to stereo", + audio_format->channels); + audio_format->channels = 2; + mix[0] = 0; + break; + } + + /* 0,1=24bit(24) , 2,3=16bit */ + switch (audio_format->format) { + case SAMPLE_FORMAT_S16: + mix[1] = 2; + break; + + case SAMPLE_FORMAT_S24_P32: + mix[1] = 0; + break; + + default: + g_debug("unsupported sample format %s - falling back to 16 bit", + sample_format_to_string(audio_format->format)); + audio_format->format = SAMPLE_FORMAT_S16; + mix[1] = 2; + break; + } + + mix[3] = 0; /* stream type? */ + mix[4] = G_BYTE_ORDER == G_LITTLE_ENDIAN; + + /* + * if there is an exact match for the frequency, use it. + */ + mix[2] = mvp_find_sample_rate(audio_format->sample_rate); + if (mix[2] == (unsigned)-1) { + g_set_error(error, mvp_output_quark(), 0, + "Can not find suitable output frequency for %u", + audio_format->sample_rate); + return false; + } + + if (ioctl(md->fd, MVP_SET_AUD_FORMAT, &mix) < 0) { + g_set_error(error, mvp_output_quark(), errno, + "Can not set audio format"); + return false; + } + + if (ioctl(md->fd, MVP_SET_AUD_SYNC, 2) != 0) { + g_set_error(error, mvp_output_quark(), errno, + "Can not set audio sync"); + return false; + } + + if (ioctl(md->fd, MVP_SET_AUD_PLAY, 0) < 0) { + g_set_error(error, mvp_output_quark(), errno, + "Can not set audio play mode"); + return false; + } + + return true; +} + +static bool +mvp_output_open(void *data, struct audio_format *audio_format, GError **error) +{ + struct mvp_data *md = data; + long long int stc = 0; + int mix[5] = { 0, 2, 7, 1, 0 }; + bool success; + + md->fd = open_cloexec("/dev/adec_pcm", O_RDWR | O_NONBLOCK, 0); + if (md->fd < 0) { + g_set_error(error, mvp_output_quark(), errno, + "Error opening /dev/adec_pcm: %s", + strerror(errno)); + return false; + } + if (ioctl(md->fd, MVP_SET_AUD_SRC, 1) < 0) { + g_set_error(error, mvp_output_quark(), errno, + "Error setting audio source: %s", + strerror(errno)); + return false; + } + if (ioctl(md->fd, MVP_SET_AUD_STREAMTYPE, 0) < 0) { + g_set_error(error, mvp_output_quark(), errno, + "Error setting audio streamtype: %s", + strerror(errno)); + return false; + } + if (ioctl(md->fd, MVP_SET_AUD_FORMAT, &mix) < 0) { + g_set_error(error, mvp_output_quark(), errno, + "Error setting audio format: %s", + strerror(errno)); + return false; + } + ioctl(md->fd, MVP_SET_AUD_STC, &stc); + if (ioctl(md->fd, MVP_SET_AUD_BYPASS, 1) < 0) { + g_set_error(error, mvp_output_quark(), errno, + "Error setting audio streamtype: %s", + strerror(errno)); + return false; + } + + success = mvp_set_pcm_params(md, audio_format, error); + if (!success) + return false; + + md->audio_format = *audio_format; + return true; +} + +static void mvp_output_close(void *data) +{ + struct mvp_data *md = data; + if (md->fd >= 0) + close(md->fd); + md->fd = -1; +} + +static void mvp_output_cancel(void *data) +{ + struct mvp_data *md = data; + if (md->fd >= 0) { + ioctl(md->fd, MVP_SET_AUD_RESET, 0x11); + close(md->fd); + md->fd = -1; + } +} + +static size_t +mvp_output_play(void *data, const void *chunk, size_t size, GError **error) +{ + struct mvp_data *md = data; + ssize_t ret; + + /* reopen the device since it was closed by dropBufferedAudio */ + if (md->fd < 0) { + bool success; + + success = mvp_output_open(md, &md->audio_format, error); + if (!success) + return 0; + } + + while (true) { + ret = write(md->fd, chunk, size); + if (ret > 0) + return (size_t)ret; + + if (ret < 0) { + if (errno == EINTR) + continue; + + g_set_error(error, mvp_output_quark(), errno, + "Failed to write: %s", strerror(errno)); + return 0; + } + } +} + +const struct audio_output_plugin mvp_output_plugin = { + .name = "mvp", + .test_default_device = mvp_output_test_default_device, + .init = mvp_output_init, + .finish = mvp_output_finish, + .open = mvp_output_open, + .close = mvp_output_close, + .play = mvp_output_play, + .cancel = mvp_output_cancel, +}; -- cgit v1.2.3