4 files changed, 30 insertions, 23 deletions

diff --git a/fw/fe310/eos/dev/eve.c b/fw/fe310/eos/dev/eve.c
index 0f98fed..b46e045 100644
--- a/fw/fe310/eos/dev/eve.c
+++ b/fw/fe310/eos/dev/eve.c
@@ -20,17 +20,17 @@
 static void handle_time(unsigned char type) {
     if (!eos_eve_running()) return;
 
-    eve_spi_start();
+    eve_select();
     eve_handle_time();
-    eve_spi_stop();
+    eve_deselect();
 }
 
 static void handle_evt(unsigned char type, unsigned char *buffer, uint16_t len) {
     if (!eos_eve_running()) return;
 
-    eve_spi_start();
+    eve_select();
     eve_handle_intr();
-    eve_spi_stop();
+    eve_deselect();
 
     GPIO_REG(GPIO_LOW_IE) |= (1 << EVE_PIN_INTR);
 }
@@ -65,7 +65,7 @@ int eos_eve_init(uint8_t wakeup_cause) {
     int rst = (wakeup_cause == EOS_PWR_WAKE_RST);
     int rv = EVE_OK;
 
-    eve_spi_start();
+    eve_select();
     if (rst) {
         rv = eve_init();
         if (!rv) {
@@ -75,7 +75,7 @@ int eos_eve_init(uint8_t wakeup_cause) {
     } else {
         eve_activate();
     }
-    eve_spi_stop();
+    eve_deselect();
 
     if (rv) return EOS_ERR;
 
@@ -93,7 +93,7 @@ void eos_eve_calibrate(void) {
     uint32_t matrix[6];
     int r;
 
-    eve_spi_start();
+    eve_select();
 
     eve_brightness(0x40);
     eve_touch_set_extended(0);
@@ -105,46 +105,46 @@ void eos_eve_calibrate(void) {
     do {
         r = eve_cmd_done();
         if (r < 0) break;
-        eve_spi_stop();
+        eve_deselect();
         eos_evtq_exec();
-        eve_spi_start();
+        eve_select();
     } while (!r);
 
     eve_touch_set_extended(1);
     eve_brightness(0);
 
     eve_touch_get_matrix(matrix);
-    eve_spi_stop();
+    eve_deselect();
 
     printf("TOUCH MATRIX:\n");
     printf("uint32_t touch_matrix[6] = {0x%x,0x%x,0x%x,0x%x,0x%x,0x%x}\n", matrix[0], matrix[1], matrix[2], matrix[3], matrix[4], matrix[5]);
 }
 
 void eos_eve_set_touch_matrix(const uint32_t *matrix) {
-    eve_spi_start();
+    eve_select();
     eve_touch_set_matrix(matrix);
-    eve_spi_stop();
+    eve_deselect();
 }
 
 int eos_eve_run(uint8_t wakeup_cause) {
-    eve_spi_start();
+    eve_select();
     _start();
     eve_start_clk();
-    eve_spi_stop();
+    eve_deselect();
 
     return EOS_OK;
 }
 
 void eos_eve_start(void) {
-    eve_spi_start();
+    eve_select();
     _start();
-    eve_spi_stop();
+    eve_deselect();
 }
 
 void eos_eve_stop(void) {
-    eve_spi_start();
+    eve_select();
     _stop();
-    eve_spi_stop();
+    eve_deselect();
 }
 
 int eos_eve_running(void) {
diff --git a/fw/fe310/eos/dev/sdcard.c b/fw/fe310/eos/dev/sdcard.c
index fa316c7..656d27a 100644
--- a/fw/fe310/eos/dev/sdcard.c
+++ b/fw/fe310/eos/dev/sdcard.c
@@ -355,7 +355,9 @@ static int sdc_init(uint32_t timeout) {
 int eos_sdc_init(uint8_t wakeup_cause) {
     int rv;
 
-    eos_spi_select(EOS_SPI_DEV_SDC);
+    rv = eos_spi_select(EOS_SPI_DEV_SDC);
+    if (rv) return rv;
+
     rv = sdc_init(5000);
     if (rv) {
         printf("SDC ERROR\n");
diff --git a/fw/fe310/eos/eve/eve_platform.c b/fw/fe310/eos/eve/eve_platform.c
index f0fc399..a57281c 100644
--- a/fw/fe310/eos/eve/eve_platform.c
+++ b/fw/fe310/eos/eve/eve_platform.c
@@ -33,10 +33,14 @@ void eve_sys_timer_clear(void) {
     eos_timer_clear(EOS_TIMER_ETYPE_UI);
 }
 
-void eve_spi_start(void) {
+void eve_select(void) {
     eos_spi_select(EOS_SPI_DEV_EVE);
 }
 
-void eve_spi_stop(void) {
+void eve_deselect(void) {
     eos_spi_deselect();
 }
+
+int eve_selected(void) {
+    return (eos_spi_dev() == EOS_SPI_DEV_EVE);
+}
diff --git a/fw/fe310/eos/eve/eve_platform.h b/fw/fe310/eos/eve/eve_platform.h
index 29240d5..cae7222 100644
--- a/fw/fe310/eos/eve/eve_platform.h
+++ b/fw/fe310/eos/eve/eve_platform.h
@@ -18,8 +18,9 @@ void eve_free(void *);
 //#define eve_malloc          malloc
 //#define eve_free            free
 
-void eve_spi_start(void);
-void eve_spi_stop(void);
+void eve_select(void);
+void eve_deselect(void);
+int eve_selected(void);
 
 #define eve_spi_cs_set      eos_spi_cs_set
 #define eve_spi_cs_clear    eos_spi_cs_clear