2 files changed, 84 insertions, 2 deletions

diff --git a/firmware/target/arm/imx233/audioin-imx233.h b/firmware/target/arm/imx233/audioin-imx233.h
index c13f7cef56..4875c8da45 100644
--- a/firmware/target/arm/imx233/audioin-imx233.h
+++ b/firmware/target/arm/imx233/audioin-imx233.h
@@ -24,6 +24,89 @@
 #include "config.h"
 #include "cpu.h"
 
+#define HW_AUDIOIN_BASE         0x8004c000 
+
+#define HW_AUDIOIN_CTRL         (*(volatile uint32_t *)(HW_AUDIOIN_BASE + 0x0))
+#define HW_AUDIOIN_CTRL__RUN    (1 << 0)
+#define HW_AUDIOIN_CTRL__FIFO_ERROR_IRQ_EN  (1 << 1)
+#define HW_AUDIOIN_CTRL__FIFO_OVERFLOW_IRQ  (1 << 2)
+#define HW_AUDIOIN_CTRL__FIFO_UNDERFLOW_IRQ (1 << 3)
+#define HW_AUDIOIN_CTRL__LOOPBACK   (1 << 4)
+#define HW_AUDIOIN_CTRL__WORD_LENGTH    (1 << 5)
+#define HW_AUDIOIN_CTRL__HPF_ENABLE     (1 << 6)
+#define HW_AUDIOIN_CTRL__OFFSET_ENABLE  (1 << 7)
+#define HW_AUDIOIN_CTRL__INVERT_1BIT    (1 << 8)
+#define HW_AUDIOIN_CTRL__EDGE_SYNC      (1 << 9)
+#define HW_AUDIOIN_CTRL__LR_SWAP        (1 << 10)
+#define HW_AUDIOIN_CTRL__DMAWAIT_COUNT_BP   16
+#define HW_AUDIOIN_CTRL__DMAWAIT_COUNT_BM   (0x1f << 16)
+
+#define HW_AUDIOIN_STAT         (*(volatile uint32_t *)(HW_AUDIOIN_BASE + 0x10))
+
+#define HW_AUDIOIN_ADCSRR       (*(volatile uint32_t *)(HW_AUDIOIN_BASE + 0x20))
+#define HW_AUDIOIN_ADCSRR__SRC_FRAC_BP  0
+#define HW_AUDIOIN_ADCSRR__SRC_FRAC_BM  (0x1ff << 0)
+#define HW_AUDIOIN_ADCSRR__SRC_INT_BP   16
+#define HW_AUDIOIN_ADCSRR__SRC_INT_BM   (0x1f << 16)
+#define HW_AUDIOIN_ADCSRR__SRC_HOLD_BP  24
+#define HW_AUDIOIN_ADCSRR__SRC_HOLD_BM  (0x7 << 24)
+#define HW_AUDIOIN_ADCSRR__BASEMULT_BP  28
+#define HW_AUDIOIN_ADCSRR__BASEMULT_BM  (0x7 << 28)
+#define HW_AUDIOIN_ADCSRR__OSR  (1 << 31)
+
+/* MUTE_LEFT and MUTE_RIGHT are not documented but present */
+#define HW_AUDIOIN_ADCVOLUME    (*(volatile uint32_t *)(HW_AUDIOIN_BASE + 0x30))
+#define HW_AUDIOIN_ADCVOLUME__VOLUME_RIGHT_BP   0
+#define HW_AUDIOIN_ADCVOLUME__VOLUME_RIGHT_BM   0xff
+#define HW_AUDIOIN_ADCVOLUME__MUTE_RIGHT    (1 << 8)
+#define HW_AUDIOIN_ADCVOLUME__VOLUME_UPDATE_RIGHT   (1 << 12)
+#define HW_AUDIOIN_ADCVOLUME__VOLUME_LEFT_BP    16
+#define HW_AUDIOIN_ADCVOLUME__VOLUME_LEFT_BM    (0xff << 16)
+#define HW_AUDIOIN_ADCVOLUME__MUTE_LEFT (1 << 24)
+#define HW_AUDIOIN_ADCVOLUME__EN_ZCD    (1 << 25)
+#define HW_AUDIOIN_ADCVOLUME__VOLUME_UPDATE_LEFT    (1 << 28)
+
+#define HW_AUDIOIN_ADCDEBUG     (*(volatile uint32_t *)(HW_AUDIOIN_BASE + 0x40))
+#define HW_AUDIOIN_ADCDEBUG__FIFO_STATUS    1
+
+#define HW_AUDIOIN_ADCVOL       (*(volatile uint32_t *)(HW_AUDIOOUT_BASE + 0x50))
+#define HW_AUDIOIN_ADCVOL__GAIN_RIGHT_BP    0 
+#define HW_AUDIOIN_ADCVOL__GAIN_RIGHT_BM    (0xf << 0)
+#define HW_AUDIOIN_ADCVOL__SELECT_RIGHT_BP  4
+#define HW_AUDIOIN_ADCVOL__SELECT_RIGHT_BM  (0x3 << 4)
+#define HW_AUDIOIN_ADCVOL__GAIN_LEFT_BP     8 
+#define HW_AUDIOIN_ADCVOL__GAIN_LEFT_BM     (0xf << 8)
+#define HW_AUDIOIN_ADCVOL__SELECT_LEFT_BP   12
+#define HW_AUDIOIN_ADCVOL__SELECT_LEFT_BM   (0x3 << 12)
+#define HW_AUDIOIN_ADCVOL__MUTE             (1 << 24)
+#define HW_AUDIOIN_ADCVOL__EN_ADC_ZCD       (1 << 25)
+#define HW_AUDIOIN_ADCVOL__VOLUME_UPDATE_PENDING    (1 << 28)
+
+#define HW_AUDIOIN_MICLINE      (*(volatile uint32_t *)(HW_AUDIOOUT_BASE + 0x60))
+#define HW_AUDIOIN_MICLINE__MIC_GAIN_BP 0
+#define HW_AUDIOIN_MICLINE__MIC_GAIN_BM 0x3
+#define HW_AUDIOIN_MICLINE__MIC_CHOPCLK_BP  4
+#define HW_AUDIOIN_MICLINE__MIC_CHOPCLK_BM  (0x3 << 4)
+#define HW_AUDIOIN_MICLINE__MIC_BIAIS_BP    16
+#define HW_AUDIOIN_MICLINE__MIC_BIAIS_BM    (0x3 << 16)
+#define HW_AUDIOIN_MICLINE__MIC_RESISTOR_BP 20
+#define HW_AUDIOIN_MICLINE__MIC_RESISTOR_BM (0x3 << 20)
+#define HW_AUDIOIN_MICLINE__MIC_SELECT  (1 << 24)
+#define HW_AUDIOIN_MICLINE__DIVIDE_LINE2    (1 << 28)
+#define HW_AUDIOIN_MICLINE__DIVIDE_LINE1    (1 << 29)
+
+#define HW_AUDIOIN_ANACLKCTRL   (*(volatile uint32_t *)(HW_AUDIOOUT_BASE + 0x70))
+#define HW_AUDIOIN_ANACLKCTRL__ADCDIV_BP    0
+#define HW_AUDIOIN_ANACLKCTRL__ADCDIV_BM    (0x7 << 0)
+#define HW_AUDIOIN_ANACLKCTRL__ADCCLK_SHIFT_BP  4
+#define HW_AUDIOIN_ANACLKCTRL__ADCCLK_SHIFT_BM  (0x3 << 4)
+#define HW_AUDIOIN_ANACLKCTRL__INVERT_ADCCLK    (1 << 8)
+#define HW_AUDIOIN_ANACLKCTRL__SLOW_DITHER      (1 << 9)
+#define HW_AUDIOIN_ANACLKCTRL__DITHER_OFF       (1 << 10)
+#define HW_AUDIOIN_ANACLKCTRL__CLKGATE          (1 << 31)
+
+#define HW_AUDIOIN_DATA         (*(volatile uint32_t *)(HW_AUDIOOUT_BASE + 0x80))
+
 void imx233_audioin_preinit(void);
 void imx233_audioin_postinit(void);
 void imx233_audioin_close(void);
diff --git a/firmware/target/arm/imx233/pcm-imx233.c b/firmware/target/arm/imx233/pcm-imx233.c
index fa13f9979e..787c828f21 100644
--- a/firmware/target/arm/imx233/pcm-imx233.c
+++ b/firmware/target/arm/imx233/pcm-imx233.c
@@ -81,7 +81,6 @@ void pcm_play_unlock(void)
 
 void pcm_play_dma_stop(void)
 {
-    
 }
 
 void pcm_play_dma_start(const void *addr, size_t size)
@@ -164,7 +163,7 @@ void pcm_rec_dma_stop(void)
 {
 }
 
-const void * pcm_rec_dma_get_peak_buffer(void)
+const void *pcm_rec_dma_get_peak_buffer(void)
 {
     return NULL;
 }