imx233: add audioin init code, add adc dma interrupts, fix register defines

Change-Id: I204afbd3390f8dcde6ea1315ea6aa8dde12d3749

5 files changed, 27 insertions, 5 deletions

diff --git a/firmware/target/arm/imx233/audioin-imx233.c b/firmware/target/arm/imx233/audioin-imx233.c
index 4c2ee657f9..dcb9c7c4b4 100644
--- a/firmware/target/arm/imx233/audioin-imx233.c
+++ b/firmware/target/arm/imx233/audioin-imx233.c
@@ -18,10 +18,16 @@
  * KIND, either express or implied.
  *
  ****************************************************************************/
-#include "audioout-imx233.h"
+#include "audioin-imx233.h"
 
 void imx233_audioin_preinit(void)
 {
+    /* Enable AUDIOIN block */
+    imx233_reset_block(&HW_AUDIOIN_CTRL);
+    /* Enable ADC */
+    __REG_CLR(HW_AUDIOIN_ANACLKCTRL) = HW_AUDIOIN_ANACLKCTRL__CLKGATE;
+    /* Set word-length to 16-bit */
+    __REG_SET(HW_AUDIOIN_CTRL) = HW_AUDIOIN_CTRL__WORD_LENGTH;
 }
 
 void imx233_audioin_postinit(void)
@@ -30,4 +36,9 @@ void imx233_audioin_postinit(void)
 
 void imx233_audioin_close(void)
 {
+    /* TODO mute */
+    /* Gate off ADC */
+    __REG_SET(HW_AUDIOIN_ANACLKCTRL) = HW_AUDIOIN_ANACLKCTRL__CLKGATE;
+    /* will also gate off the module */
+    __REG_CLR(HW_AUDIOIN_CTRL) = HW_AUDIOIN_CTRL__RUN;
 }
diff --git a/firmware/target/arm/imx233/audioin-imx233.h b/firmware/target/arm/imx233/audioin-imx233.h
index 4875c8da45..6351173967 100644
--- a/firmware/target/arm/imx233/audioin-imx233.h
+++ b/firmware/target/arm/imx233/audioin-imx233.h
@@ -23,6 +23,7 @@
 
 #include "config.h"
 #include "cpu.h"
+#include "system.h"
 
 #define HW_AUDIOIN_BASE         0x8004c000 
 
@@ -69,7 +70,7 @@
 #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       (*(volatile uint32_t *)(HW_AUDIOIN_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
@@ -82,7 +83,7 @@
 #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      (*(volatile uint32_t *)(HW_AUDIOIN_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
@@ -95,7 +96,7 @@
 #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   (*(volatile uint32_t *)(HW_AUDIOIN_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
@@ -105,7 +106,7 @@
 #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))
+#define HW_AUDIOIN_DATA         (*(volatile uint32_t *)(HW_AUDIOIN_BASE + 0x80))
 
 void imx233_audioin_preinit(void);
 void imx233_audioin_postinit(void);
diff --git a/firmware/target/arm/imx233/pcm-imx233.c b/firmware/target/arm/imx233/pcm-imx233.c
index 787c828f21..c8b79b3875 100644
--- a/firmware/target/arm/imx233/pcm-imx233.c
+++ b/firmware/target/arm/imx233/pcm-imx233.c
@@ -131,6 +131,10 @@ const void *pcm_play_dma_get_peak_buffer(int *count)
     return (void *)info.bar;
 }
 
+/*
+ * Recording
+ */
+
 void pcm_rec_lock(void)
 {
 }
diff --git a/firmware/target/arm/imx233/system-imx233.c b/firmware/target/arm/imx233/system-imx233.c
index c9d490302e..36b67674c2 100644
--- a/firmware/target/arm/imx233/system-imx233.c
+++ b/firmware/target/arm/imx233/system-imx233.c
@@ -69,6 +69,8 @@ default_interrupt(INT_LRADC_CH6);
 default_interrupt(INT_LRADC_CH7);
 default_interrupt(INT_DAC_DMA);
 default_interrupt(INT_DAC_ERROR);
+default_interrupt(INT_ADC_DMA);
+default_interrupt(INT_ADC_ERROR);
 default_interrupt(INT_DCP);
 
 typedef void (*isr_t)(void);
@@ -102,6 +104,8 @@ static isr_t isr_table[INT_SRC_NR_SOURCES] =
     [INT_SRC_LRADC_CHx(7)] = INT_LRADC_CH7,
     [INT_SRC_DAC_DMA] = INT_DAC_DMA,
     [INT_SRC_DAC_ERROR] = INT_DAC_ERROR,
+    [INT_SRC_ADC_DMA] = INT_ADC_DMA,
+    [INT_SRC_ADC_ERROR] = INT_ADC_ERROR,
     [INT_SRC_DCP] = INT_DCP,
 };
 
diff --git a/firmware/target/arm/imx233/system-target.h b/firmware/target/arm/imx233/system-target.h
index a4ab64e562..d9a19efa8f 100644
--- a/firmware/target/arm/imx233/system-target.h
+++ b/firmware/target/arm/imx233/system-target.h
@@ -66,6 +66,8 @@
 #define INT_SRC_VDD5V       3
 #define INT_SRC_DAC_DMA     5
 #define INT_SRC_DAC_ERROR   6
+#define INT_SRC_ADC_DMA     7
+#define INT_SRC_ADC_ERROR   8
 #define INT_SRC_USB_CTRL    11
 #define INT_SRC_SSP1_DMA    14
 #define INT_SRC_SSP1_ERROR  15