1 files changed, 27 insertions, 2 deletions

diff --git a/firmware/target/arm/imx233/lradc-imx233.h b/firmware/target/arm/imx233/lradc-imx233.h
index b661fa8aa4..f71843b3db 100644
--- a/firmware/target/arm/imx233/lradc-imx233.h
+++ b/firmware/target/arm/imx233/lradc-imx233.h
@@ -31,12 +31,19 @@
 #define HW_LRADC_BASE       0x80050000
 
 #define HW_LRADC_CTRL0      (*(volatile uint32_t *)(HW_LRADC_BASE + 0x0))
+#define HW_LRADC_CTRL0__XPLUS_ENABLE        (1 << 16)
+#define HW_LRADC_CTRL0__YPLUS_ENABLE        (1 << 17)
+#define HW_LRADC_CTRL0__XMINUS_ENABLE       (1 << 18)
+#define HW_LRADC_CTRL0__YMINUS_ENABLE       (1 << 19)
+#define HW_LRADC_CTRL0__TOUCH_DETECT_ENABLE (1 << 20)
 #define HW_LRADC_CTRL0__ONCHIP_GROUNDREF    (1 << 21)
 #define HW_LRADC_CTRL0__SCHEDULE(x)         (1 << (x))
 
 #define HW_LRADC_CTRL1      (*(volatile uint32_t *)(HW_LRADC_BASE + 0x10))
-#define HW_LRADC_CTRL1__LRADCx_IRQ(x)   (1 << (x))
-#define HW_LRADC_CTRL1__LRADCx_IRQ_EN(x)   (1 << ((x) + 16))
+#define HW_LRADC_CTRL1__LRADCx_IRQ(x)       (1 << (x))
+#define HW_LRADC_CTRL1__TOUCH_DETECT_IRQ    (1 << 8)
+#define HW_LRADC_CTRL1__LRADCx_IRQ_EN(x)    (1 << ((x) + 16))
+#define HW_LRADC_CTRL1__TOUCH_DETECT_IRQ_EN (1 << 24)
 
 #define HW_LRADC_CTRL2      (*(volatile uint32_t *)(HW_LRADC_BASE + 0x20))
 #define HW_LRADC_CTRL2__TEMP_ISRC1_BP           4
@@ -63,6 +70,7 @@
 #define HW_LRADC_CTRL3__CYCLE_TIME__2MHz    (3 << 8)
 
 #define HW_LRADC_STATUS     (*(volatile uint32_t *)(HW_LRADC_BASE + 0x40))
+#define HW_LRADC_STATUS__TOUCH_DETECT_RAW   (1 << 0)
 
 #define HW_LRADC_CHx(x)     (*(volatile uint32_t *)(HW_LRADC_BASE + 0x50 + (x) * 0x10))
 #define HW_LRADC_CHx__NUM_SAMPLES_BM    (0x1f << 24)
@@ -100,6 +108,10 @@
 #define HW_LRADC_NUM_DELAYS     4
 
 #define HW_LRADC_CHANNEL(x)         (x)
+#define HW_LRADC_CHANNEL_XPLUS      HW_LRADC_CHANNEL(2)
+#define HW_LRADC_CHANNEL_YPLUS      HW_LRADC_CHANNEL(3)
+#define HW_LRADC_CHANNEL_XMINUS     HW_LRADC_CHANNEL(4)
+#define HW_LRADC_CHANNEL_YMINUS     HW_LRADC_CHANNEL(5)
 #define HW_LRADC_CHANNEL_VDDIO      HW_LRADC_CHANNEL(6)
 #define HW_LRADC_CHANNEL_BATTERY    HW_LRADC_CHANNEL(7)
 #define HW_LRADC_CHANNEL_PMOS_THIN  HW_LRADC_CHANNEL(8)
@@ -112,10 +124,16 @@
 #define HW_LRADC_CHANNEL_VBG        HW_LRADC_CHANNEL(14)
 #define HW_LRADC_CHANNEL_5V         HW_LRADC_CHANNEL(15)
 
+typedef void (*lradc_irq_fn_t)(int chan);
+
 void imx233_lradc_init(void);
 void imx233_lradc_setup_channel(int channel, bool div2, bool acc, int nr_samples, int src);
 void imx233_lradc_setup_delay(int dchan, int trigger_lradc, int trigger_delays,
     int loop_count, int delay);
+void imx233_lradc_clear_channel_irq(int channel);
+bool imx233_lradc_read_channel_irq(int channel);
+void imx233_lradc_enable_channel_irq(int channel, bool enable);
+void imx233_lradc_set_channel_irq_callback(int channel, lradc_irq_fn_t cb);
 void imx233_lradc_kick_channel(int channel);
 void imx233_lradc_kick_delay(int dchan);
 void imx233_lradc_wait_channel(int channel);
@@ -132,6 +150,13 @@ int imx233_lradc_acquire_delay(int timeout);
 void imx233_lradc_reserve_delay(int dchannel);
 void imx233_lradc_release_delay(int dchan);
 
+/* Setup touch x/yminus pull donws and x/yplus pull ups */
+void imx233_lradc_setup_touch(bool xminus_enable, bool yminus_enable,
+    bool xplus_enable, bool yplus_enable, bool touch_detect);
+void imx233_lradc_enable_touch_detect_irq(bool enable);
+void imx233_lradc_clear_touch_detect_irq(void);
+bool imx233_lradc_read_touch_detect(void);
+
 /* enable sensing and return temperature in kelvin,
  * channels needs not to be configured */
 int imx233_lradc_sense_die_temperature(int nmos_chan, int pmos_chan);