diff options
Diffstat (limited to 'hifi/xaf/host-apf/playback/xa_playback.c')
-rw-r--r-- | hifi/xaf/host-apf/playback/xa_playback.c | 366 |
1 files changed, 366 insertions, 0 deletions
diff --git a/hifi/xaf/host-apf/playback/xa_playback.c b/hifi/xaf/host-apf/playback/xa_playback.c new file mode 100644 index 00000000..2a8eefdf --- /dev/null +++ b/hifi/xaf/host-apf/playback/xa_playback.c @@ -0,0 +1,366 @@ +/******************************************************************************* +* Copyright (C) 2018 Cadence Design Systems, Inc. +* +* Permission is hereby granted, free of charge, to any person obtaining +* a copy of this software and associated documentation files (the +* "Software"), to use this Software with Cadence processor cores only and +* not with any other processors and platforms, subject to +* the following conditions: +* +* The above copyright notice and this permission notice shall be included +* in all copies or substantial portions of the Software. +* +* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. +* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY +* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, +* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE +* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +******************************************************************************/ + +#define MODULE_TAG PLYBK + +#include <tinyalsa/asoundlib.h> +#include <stdio.h> +#include <stdlib.h> +#include <stdint.h> +#include <string.h> +#include <signal.h> +#include <sys/ioctl.h> +#include <fcntl.h> +#include <unistd.h> +#include <errno.h> + +#include "xf.h" +#include "xa_playback.h" + +#if 0 +#define ID_RIFF 0x46464952 +#define ID_WAVE 0x45564157 +#define ID_FMT 0x20746d66 +#define ID_DATA 0x61746164 + +#define HIFI_MISC_IOCTL_PCM_GAIN _IOW('A', 0x7b, struct misc_io_pcm_buf_param) +#define HIFI_DSP_MISC_DRIVER "/dev/hifi_misc" +struct misc_io_pcm_buf_param { + uint64_t buf; + uint32_t buf_size; +}; + +struct riff_wave_header { + uint32_t riff_id; + uint32_t riff_sz; + uint32_t wave_id; +}; + +struct chunk_header { + uint32_t id; + uint32_t sz; +}; + +struct chunk_fmt { + uint16_t audio_format; + uint16_t num_channels; + uint32_t sample_rate; + uint32_t byte_rate; + uint16_t block_align; + uint16_t bits_per_sample; +}; + +static int s_close = 0; + +void play_sample(FILE *file, unsigned int card, unsigned int device, unsigned int channels, + unsigned int rate, unsigned int bits, unsigned int period_size, + unsigned int period_count); + +void stream_close(int sig) +{ + /* allow the stream to be closed gracefully */ + signal(sig, SIG_IGN); + s_close = 1; +} +#endif + +#if 0 +int main(int argc, char **argv) +{ + FILE *file; + struct riff_wave_header riff_wave_header; + struct chunk_header chunk_header; + struct chunk_fmt chunk_fmt; + unsigned int device = 0; + unsigned int card = 0; + unsigned int period_size = 1024; + unsigned int period_count = 4; + char *filename; + int more_chunks = 1; + + if (argc < 2) { + fprintf(stderr, "Usage: %s file.wav [-D card] [-d device] [-p period_size]" + " [-n n_periods] \n", argv[0]); + return 1; + } + + filename = argv[1]; + file = fopen(filename, "rb"); + if (!file) { + fprintf(stderr, "Unable to open file '%s'\n", filename); + return 1; + } + + fread(&riff_wave_header, sizeof(riff_wave_header), 1, file); + if ((riff_wave_header.riff_id != ID_RIFF) || + (riff_wave_header.wave_id != ID_WAVE)) { + fprintf(stderr, "Error: '%s' is not a riff/wave file\n", filename); + fclose(file); + return 1; + } + + do { + fread(&chunk_header, sizeof(chunk_header), 1, file); + + switch (chunk_header.id) { + case ID_FMT: + fread(&chunk_fmt, sizeof(chunk_fmt), 1, file); + /* If the format header is larger, skip the rest */ + if (chunk_header.sz > sizeof(chunk_fmt)) + fseek(file, chunk_header.sz - sizeof(chunk_fmt), SEEK_CUR); + break; + case ID_DATA: + /* Stop looking for chunks */ + more_chunks = 0; + break; + default: + /* Unknown chunk, skip bytes */ + fseek(file, chunk_header.sz, SEEK_CUR); + } + } while (more_chunks); + + /* parse command line arguments */ + argv += 2; + while (*argv) { + if (strcmp(*argv, "-d") == 0) { + argv++; + if (*argv) + device = atoi(*argv); + } + if (strcmp(*argv, "-p") == 0) { + argv++; + if (*argv) + period_size = atoi(*argv); + } + if (strcmp(*argv, "-n") == 0) { + argv++; + if (*argv) + period_count = atoi(*argv); + } + if (strcmp(*argv, "-D") == 0) { + argv++; + if (*argv) + card = atoi(*argv); + } + if (*argv) + argv++; + } + + play_sample(file, card, device, chunk_fmt.num_channels, chunk_fmt.sample_rate, + chunk_fmt.bits_per_sample, period_size, period_count); + + fclose(file); + + return 0; +} +#endif + +static int check_param(struct pcm_params *params, unsigned int param, unsigned int value, + char *param_name, char *param_unit) +{ + unsigned int min; + unsigned int max; + int is_within_bounds = 1; + + min = pcm_params_get_min(params, param); + if (value < min) { + TRACE(ERROR, _x("%s is %u%s, device only supports >= %u%s\n"), param_name, value, + param_unit, min, param_unit); + is_within_bounds = 0; + } + + max = pcm_params_get_max(params, param); + if (value > max) { + TRACE(ERROR, _x("%s is %u%s, device only supports <= %u%s\n"), param_name, value, + param_unit, max, param_unit); + is_within_bounds = 0; + } + + return is_within_bounds; +} + +static int sample_is_playable(unsigned int card, unsigned int device, unsigned int channels, + unsigned int rate, unsigned int bits, unsigned int period_size, + unsigned int period_count) +{ + struct pcm_params *params; + int can_play; + + params = pcm_params_get(card, device, PCM_OUT); + if (params == NULL) { + TRACE(ERROR, _x("Unable to open PCM device %u.\n"), device); + return 0; + } + + can_play = check_param(params, PCM_PARAM_RATE, rate, "Sample rate", "Hz"); + can_play &= check_param(params, PCM_PARAM_CHANNELS, channels, "Sample", " channels"); + can_play &= check_param(params, PCM_PARAM_SAMPLE_BITS, bits, "Bitrate", " bits"); + can_play &= check_param(params, PCM_PARAM_PERIOD_SIZE, period_size, "Period size", "Hz"); + can_play &= check_param(params, PCM_PARAM_PERIODS, period_count, "Period count", "Hz"); + + pcm_params_free(params); + + return can_play; +} + +void *xa_playback_open(unsigned int card, + unsigned int device, + unsigned int channels, + unsigned int rate, + unsigned int bits, + unsigned int period_size, + unsigned int period_count) +{ + struct pcm_config config; + struct pcm *pcm; + + memset(&config, 0, sizeof(config)); + config.channels = channels; + config.rate = rate; + config.period_size = period_size; + config.period_count = period_count; + if (bits == 32) + config.format = PCM_FORMAT_S32_LE; + else if (bits == 16) + config.format = PCM_FORMAT_S16_LE; + config.start_threshold = 0; + config.stop_threshold = 0; + config.silence_threshold = 0; + + if (!sample_is_playable(card, device, channels, rate, bits, period_size, period_count)) { + return NULL; + } + + pcm = pcm_open(card, device, PCM_OUT, &config); + if (!pcm || !pcm_is_ready(pcm)) { + TRACE(ERROR, _x("Unable to open PCM device %u (%s)\n"), + device, pcm_get_error(pcm)); + return NULL; + } + + return pcm; +} + +int xa_playback_buf(void *handle, + const void *data, + unsigned int nbytes) +{ + int err; + + if (!handle || !data) + return XA_PLAYBACK_INVALID_PARAM; + + if (nbytes > 0) { + err = pcm_write(handle, data, nbytes); + + if (err == -EINVAL) return XA_PLAYBACK_INVALID_PARAM; + if (err == -EPIPE ) return XA_PLAYBACK_UNDERRUN; + } + + return XA_PLAYBACK_OK; +} + +int xa_playback_close(void *handle) +{ + return pcm_close(handle); +} + +#if 0 +void play_sample(FILE *file, unsigned int card, unsigned int device, unsigned int channels, + unsigned int rate, unsigned int bits, unsigned int period_size, + unsigned int period_count) +{ + struct pcm_config config; + struct pcm *pcm; + char *buffer; + int size; + int num_read; + int hifi_dsp_fd; + struct misc_io_pcm_buf_param pcmbuf; + + hifi_dsp_fd = open(HIFI_DSP_MISC_DRIVER, O_RDWR, 0); + if(hifi_dsp_fd < 0){ + printf("Error opening hifi dsp device %d", errno); + } + + memset(&config, 0, sizeof(config)); + config.channels = channels; + config.rate = rate; + config.period_size = period_size; + config.period_count = period_count; + if (bits == 32) + config.format = PCM_FORMAT_S32_LE; + else if (bits == 16) + config.format = PCM_FORMAT_S16_LE; + config.start_threshold = 0; + config.stop_threshold = 0; + config.silence_threshold = 0; + + if (!sample_is_playable(card, device, channels, rate, bits, period_size, period_count)) { + return; + } + + pcm = pcm_open(card, device, PCM_OUT, &config); + if (!pcm || !pcm_is_ready(pcm)) { + fprintf(stderr, "Unable to open PCM device %u (%s)\n", + device, pcm_get_error(pcm)); + return; + } + + size = pcm_frames_to_bytes(pcm, pcm_get_buffer_size(pcm)); + buffer = malloc(size); + if (!buffer) { + fprintf(stderr, "Unable to allocate %d bytes\n", size); + free(buffer); + pcm_close(pcm); + return; + } + + printf("Playing sample: %u ch, %u hz, %u bit\n", channels, rate, bits); + + /* catch ctrl-c to shutdown cleanly */ + signal(SIGINT, stream_close); + + do { + num_read = fread(buffer, 1, size, file); + + pcmbuf.buf =(uint64_t) buffer; + pcmbuf.buf_size = num_read; + if(hifi_dsp_fd) { + // printf("ioctl send \n"); + ioctl(hifi_dsp_fd,HIFI_MISC_IOCTL_PCM_GAIN, &pcmbuf); + // printf("ioctl complete \n"); + } + + if (num_read > 0) { + if (pcm_write(pcm, buffer, num_read)) { + fprintf(stderr, "Error playing sample\n"); + break; + } + } + } while (!s_close && num_read > 0); + + free(buffer); + pcm_close(pcm); + close(hifi_dsp_fd); +} +#endif |