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This commit is contained in:
Ross Owen
2016-02-04 11:59:42 +00:00
parent 202c90f750 0b267e606a
commit 50b890b399
6 changed files with 96 additions and 23 deletions
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10
CHANGELOG.rst
View File

@@ -1,6 +1,13 @@
sc_usb_audio Change Log
=======================
6.15.0
------
- CHANGE: Removed 32kHz sample-rate support when PDM microphones enabled (lib_mic_array
currently does not support non-integer decimation factors)
- RESOLVED: UAC 1.0 descriptors now support multi-channel volume control (previously were
hard-coded as stereo)
6.14.0
------
- ADDED: Support for for master-clock/sample-rate divides that are not a power of 2
@@ -170,4 +177,7 @@ sc_usb_audio Change Log
- CHANGE: Level meter buffer naming now resemble functionality
Legacy release history
----------------------
Please see changelog in sw_usb_audio for changes prior to 6.8.0 release.

2
module_usb_audio/devicedefines.h
View File

@@ -465,7 +465,7 @@
* @brief Device firmware version number in Binary Coded Decimal format: 0xJJMN where JJ: major, M: minor, N: sub-minor version number.
*/
#ifndef BCD_DEVICE_M
#define BCD_DEVICE_M 14
#define BCD_DEVICE_M 15
#endif
/**

6
module_usb_audio/endpoint0/audiorequests.xc
View File

@@ -874,7 +874,11 @@ int AudioClassRequests_2(XUD_ep ep0_out, XUD_ep ep0_in, USB_SetupPacket_t &sp, c
}
#endif
/* Special case for some low sample rates */
unsigned lowSampleRateList[] = {8000, 11025, 12000, 16000, 32000};
unsigned lowSampleRateList[] = {8000, 11025, 12000, 16000,
#if (NUM_PDM_MICS == 0)
32000
#endif
};
for (int k = 0; k < sizeof(lowSampleRateList)/sizeof(unsigned); k++)
{

63
module_usb_audio/endpoint0/descriptors.h
View File

@@ -2227,9 +2227,11 @@ const unsigned num_freqs_a1 = MAX(3, (0
#if(MIN_FREQ <= 16000) && (MAX_FREQ_FS >= 16000)
+1
#endif
#if (NUM_PDM_MICS == 0)
#if(MIN_FREQ <= 32000) && (MAX_FREQ_FS >= 32000)
+1
#endif
#endif
#if (MIN_FREQ <= 44100) && (MAX_FREQ_FS >= 44100)
+1
#endif
@@ -2244,7 +2246,7 @@ const unsigned num_freqs_a1 = MAX(3, (0
#endif
));
#define AC_TOTAL_LENGTH (AC_LENGTH + (INPUT_INTERFACES_A1 * (19 + num_freqs_a1 * 3)) + (OUTPUT_INTERFACES_A1 * (19 + (num_freqs_a1 *3))))
#define AC_TOTAL_LENGTH (AC_LENGTH + (INPUT_INTERFACES_A1 * (17 + NUM_USB_CHAN_IN_FS + num_freqs_a1 * 3)) + (OUTPUT_INTERFACES_A1 * (17 + NUM_USB_CHAN_OUT_FS + (num_freqs_a1 *3))))
#define STREAMING_INTERFACES (INPUT_INTERFACES_A1 + OUTPUT_INTERFACES_A1)
/* Number of interfaces for Audio 1.0 (+1 for control ) */
@@ -2320,15 +2322,41 @@ unsigned char cfgDesc_Audio1[] =
11, /* iTerminal */
/* CS_Interface class specific AC interface feature unit descriptor - mute & volume for dac */
0x0A,
(8 + NUM_USB_CHAN_OUT_FS),
UAC_CS_DESCTYPE_INTERFACE,
UAC_CS_AC_INTERFACE_SUBTYPE_FEATURE_UNIT, /* 2 bDescriptorSubType: FEATURE_UNIT */
0x0A, /* unitID */
0x01, /* sourceID - ID of the unit/terminal to which this feature unit is connected */
0x01, /* controlSize - 1 */
0x00, /* bmaControls(0) */
#if (NUM_USB_CHAN_OUT_FS > 0)
0x03, /* bmaControls(1) */
#endif
#if (NUM_USB_CHAN_OUT_FS > 1)
0x03, /* bmaControls(2) */
#endif
#if (NUM_USB_CHAN_OUT_FS > 2)
0x03, /* bmaControls(3) */
#endif
#if (NUM_USB_CHAN_OUT_FS > 3)
0x03, /* bmaControls(4) */
#endif
#if (NUM_USB_CHAN_OUT_FS > 4)
0x03, /* bmaControls(5) */
#endif
#if (NUM_USB_CHAN_OUT_FS > 5)
0x03, /* bmaControls(6) */
#endif
#if (NUM_USB_CHAN_OUT_FS > 6)
0x03, /* bmaControls(7) */
#endif
#if (NUM_USB_CHAN_OUT_FS > 7)
0x03, /* bmaControls(8) */
#endif
#if (NUM_USB_CHAN_OUT_FS > 8)
#error NUM_USB_CHAN_OUT_FS > 8 currently supported
#endif
0x00, /* String table index */
/* CS_Interface Output Terminal Descriptor - Analogue out to speaker */
@@ -2366,15 +2394,40 @@ unsigned char cfgDesc_Audio1[] =
0x00, /* Unused */
/* CS_Interface class specific AC interface feature unit descriptor - mute & volume for adc */
0x0A,
(8 + NUM_USB_CHAN_IN_FS),
UAC_CS_DESCTYPE_INTERFACE,
UAC_CS_AC_INTERFACE_SUBTYPE_FEATURE_UNIT, /* 2 bDescriptorSubType: FEATURE_UNIT */
0x0B, /* unitID */
0x02, /* sourceID - ID of the unit/terminal to which this feature unit is connected */
0x01, /* controlSize - 1 */
0x00, /* bmaControls(0) */
#if (NUM_USB_CHAN_IN_FS > 0)
0x03, /* bmaControls(1) */
#endif
#if (NUM_USB_CHAN_IN_FS > 1)
0x03, /* bmaControls(2) */
#endif
#if (NUM_USB_CHAN_IN_FS > 2)
0x03, /* bmaControls(3) */
#endif
#if (NUM_USB_CHAN_IN_FS > 3)
0x03, /* bmaControls(4) */
#endif
#if (NUM_USB_CHAN_IN_FS > 4)
0x03, /* bmaControls(5) */
#endif
#if (NUM_USB_CHAN_IN_FS > 5)
0x03, /* bmaControls(6) */
#endif
#if (NUM_USB_CHAN_IN_FS > 6)
0x03, /* bmaControls(7) */
#endif
#if (NUM_USB_CHAN_IN_FS > 7)
0x03, /* bmaControls(8) */
#endif
#if (NUM_USB_CHAN_IN_FS > 8)
#error NUM_USB_CHAN_IN_FS > 8 currently supported
#endif
0x00, /* String table index */
#endif
@@ -2455,9 +2508,11 @@ unsigned char cfgDesc_Audio1[] =
CHARIFY_SR(16000), /* sampleFreq - 16KHz */
#endif
#if (NUM_PDM_MICS == 0)
#if(MIN_FREQ <= 32000) && (MAX_FREQ_FS >= 32000)
CHARIFY_SR(32000), /* sampleFreq - 32KHz */
#endif
#endif
#if (MIN_FREQ <= 44100) && (MAX_FREQ_FS >= 44100)
0x44, 0xAC, 0x00, /* sampleFreq - 44.1Khz */
@@ -2583,9 +2638,11 @@ unsigned char cfgDesc_Audio1[] =
CHARIFY_SR(16000), /* sampleFreq - 32KHz */
#endif
#if (NUM_PDM_MICS == 0)
#if(MIN_FREQ <= 32000) && (MAX_FREQ_FS >= 32000)
CHARIFY_SR(32000), /* sampleFreq - 32KHz */
#endif
#endif
#if (MIN_FREQ <= 44100) && (MAX_FREQ_FS >= 44100)
0x44, 0xAC, 0x00, /* sampleFreq - 44.1Khz */

3
module_usb_audio/pdm_mics/mic_array_conf.h
View File

@@ -1,7 +1,6 @@
#ifndef MIC_ARRAY_CONF_H_
#define MIC_ARRAY_CONF_H_
#define FRAME_SIZE_LOG2 0
#define MAX_FRAME_SIZE_LOG2 0
#endif /* MIC_ARRAY_CONF_H_ */

35
module_usb_audio/pdm_mics/pcm_pdm_mic.xc
View File

@@ -16,6 +16,8 @@
#include "fir_decimator.h"
#include "mic_array.h"
#define MAX_DECIMATION_FACTOR 12
/* Hardware resources */
in port p_pdm_clk = PORT_PDM_CLK;
in buffered port:32 p_pdm_mics = PORT_PDM_DATA;
@@ -26,12 +28,12 @@ clock pdmclk = on tile[PDM_TILE]: XS1_CLKBLK_3;
unsafe void user_pdm_process(frame_audio * unsafe audio, int output[]);
void user_pdm_init();
int data_0[4*COEFS_PER_PHASE*MAX_DECIMATION_FACTOR] = {0};
int data_1[4*COEFS_PER_PHASE*MAX_DECIMATION_FACTOR] = {0};
int data_0[4*THIRD_STAGE_COEFS_PER_STAGE * MAX_DECIMATION_FACTOR] = {0};
int data_1[4*THIRD_STAGE_COEFS_PER_STAGE * MAX_DECIMATION_FACTOR] = {0};
frame_audio mic_audio[2];
void pdm_process(streaming chanend c_ds_output_0, streaming chanend c_ds_output_1, chanend c_audio)
void pdm_process(streaming chanend c_ds_output[2], chanend c_audio)
{
unsigned buffer = 1; // Buffer index
memset(mic_audio, sizeof(frame_audio), 0);
@@ -45,21 +47,21 @@ void pdm_process(streaming chanend c_ds_output_0, streaming chanend c_ds_output_
c_audio :> samplerate;
unsigned decimationfactor = 48000/samplerate;
unsigned decimationfactor = 96000/samplerate;
unsafe
{
decimator_config_common dcc = {FRAME_SIZE_LOG2, 1, 0, 0, decimationfactor, fir_coefs[decimationfactor], 0};
decimator_config dc0 = {&dcc, data_0, {0, 0, 0, 0}};
decimator_config dc1 = {&dcc, data_1, {0, 0, 0, 0}};
decimator_configure(c_ds_output_0, c_ds_output_1, dc0, dc1);
}
const int * unsafe fir_coefs[7] = {0, g_third_stage_div_2_fir, g_third_stage_div_4_fir, g_third_stage_div_6_fir, g_third_stage_div_8_fir, 0, g_third_stage_div_12_fir};
decimator_init_audio_frame(c_ds_output_0, c_ds_output_1, buffer, mic_audio, DECIMATOR_NO_FRAME_OVERLAP);
decimator_config_common dcc = {MAX_FRAME_SIZE_LOG2, 1, 0, 0, decimationfactor, fir_coefs[decimationfactor/2], 0, 0, DECIMATOR_NO_FRAME_OVERLAP, 2};
decimator_config dc[2] = {{&dcc, data_0, {0, 0, 0, 0}, 4}, {&dcc, data_1, {0, 0, 0, 0}, 4}};
decimator_configure(c_ds_output, 2, dc);
decimator_init_audio_frame(c_ds_output, 2, buffer, mic_audio, dcc);
while(1)
{
frame_audio * unsafe current = decimator_get_next_audio_frame(c_ds_output_0, c_ds_output_1, buffer, mic_audio);
frame_audio * unsafe current = decimator_get_next_audio_frame(c_ds_output, 2, buffer, mic_audio, dcc);
unsafe
{
@@ -72,7 +74,7 @@ void pdm_process(streaming chanend c_ds_output_0, streaming chanend c_ds_output_
{
for(int i = 0; i < NUM_PDM_MICS; i++)
{
c_audio <: output[i]*decimationfactor;
c_audio <: output[i];
}
}
else
@@ -80,6 +82,7 @@ void pdm_process(streaming chanend c_ds_output_0, streaming chanend c_ds_output_
break;
}
}
}
}
}
}
@@ -91,7 +94,7 @@ void pdm_process(streaming chanend c_ds_output_0, streaming chanend c_ds_output_
void pcm_pdm_mic(chanend c_pcm_out)
{
streaming chan c_4x_pdm_mic_0, c_4x_pdm_mic_1;
streaming chan c_ds_output_0, c_ds_output_1;
streaming chan c_ds_output[2];
/* TODO, always run mics at 3MHz */
configure_clock_src_divide(pdmclk, p_mclk, 2);
@@ -102,9 +105,9 @@ void pcm_pdm_mic(chanend c_pcm_out)
par
{
pdm_rx(p_pdm_mics, c_4x_pdm_mic_0, c_4x_pdm_mic_1);
decimate_to_pcm_4ch(c_4x_pdm_mic_0, c_ds_output_0);
decimate_to_pcm_4ch(c_4x_pdm_mic_1, c_ds_output_1);
pdm_process(c_ds_output_0, c_ds_output_1, c_pcm_out);
decimate_to_pcm_4ch(c_4x_pdm_mic_0, c_ds_output[0]);
decimate_to_pcm_4ch(c_4x_pdm_mic_1, c_ds_output[1]);
pdm_process(c_ds_output, c_pcm_out);
}
}