eve portable

1 files changed, 69 insertions, 0 deletions

diff --git a/code/fe310/eos/eve/eve_platform.c b/code/fe310/eos/eve/eve_platform.c
new file mode 100644
index 0000000..e15d414
--- /dev/null
+++ b/code/fe310/eos/eve/eve_platform.c
@@ -0,0 +1,69 @@
+#include <stdlib.h>
+
+#include "encoding.h"
+#include "platform.h"
+
+#include "eos.h"
+#include "interrupt.h"
+#include "event.h"
+#include "timer.h"
+#include "spi.h"
+#include "eve.h"
+#include "eve_platform.h"
+
+#include "irq_def.h"
+
+#define EVE_PIN_INTR            0
+
+static void handle_time(unsigned char type) {
+    eos_spi_dev_start(EOS_DEV_DISP);
+    eve_handle_time();
+    eos_spi_dev_stop();
+}
+
+static void handle_evt(unsigned char type, unsigned char *buffer, uint16_t len) {
+    uint8_t flags;
+
+    eos_spi_dev_start(EOS_DEV_DISP);
+    eve_handle_touch();
+    eos_spi_dev_stop();
+
+    GPIO_REG(GPIO_LOW_IP) = (1 << EVE_PIN_INTR);
+    GPIO_REG(GPIO_LOW_IE) |= (1 << EVE_PIN_INTR);
+}
+
+static void handle_intr(void) {
+    GPIO_REG(GPIO_LOW_IE) &= ~(1 << EVE_PIN_INTR);
+    eos_evtq_push_isr(EOS_EVT_UI | EVE_ETYPE_INTR, NULL, 0);
+    return;
+}
+
+void eve_sleep(uint32_t ms) {
+    eos_timer_sleep(ms);
+}
+
+void eve_timer_set(uint32_t ms) {
+    eos_timer_set(ms, EOS_TIMER_ETYPE_UI, 0);
+}
+
+void eve_timer_clear(void) {
+    eos_timer_clear(EOS_TIMER_ETYPE_UI);
+}
+
+uint64_t eve_timer_get_tick(void) {
+    volatile uint64_t *mtime = (uint64_t *) (CLINT_CTRL_ADDR + CLINT_MTIME);
+    return *mtime;
+}
+
+void eve_init_platform(void) {
+    eos_evtq_set_handler(EOS_EVT_UI, handle_evt);
+    eos_timer_set_handler(EOS_TIMER_ETYPE_UI, handle_time);
+
+    GPIO_REG(GPIO_INPUT_EN)     |=  (1 << EVE_PIN_INTR);
+    GPIO_REG(GPIO_OUTPUT_EN)    &= ~(1 << EVE_PIN_INTR);
+    GPIO_REG(GPIO_PULLUP_EN)    &= ~(1 << EVE_PIN_INTR);
+    GPIO_REG(GPIO_OUTPUT_XOR)   &= ~(1 << EVE_PIN_INTR);
+
+    GPIO_REG(GPIO_LOW_IE)       |=  (1 << EVE_PIN_INTR);
+    eos_intr_set(INT_GPIO_BASE + EVE_PIN_INTR, IRQ_PRIORITY_UI, handle_intr);
+}
\ No newline at end of file