uart: Generate instances from platform spec.

3 files changed, 66 insertions, 0 deletions

diff --git a/uart/SConscript b/uart/SConscript
new file mode 100644
index 0000000..dcf6d3e
--- /dev/null
+++ b/uart/SConscript
@@ -0,0 +1,21 @@
+Import('env')
+
+headers = []
+instances = []
+sources = []
+aliases = {}
+
+periph = env['PLATFORM_SPEC'].get('periph', {})
+
+if 'stm32_uart' in periph:
+    headers.append('stm32_uart.h')
+    for name, data in periph['stm32_uart'].items():
+        instances.append({
+            'type': 'STM32_UART_t<STM32_UART_reg_%s_t>' % data['type'],
+            'name': name,
+            'args': [data['offset']],
+        })
+
+env.Jinja2('uart.h', '../templates/periph_instances.h.j2', headers = headers, instances = instances, aliases = aliases)
+
+Return('sources')
diff --git a/uart/stm32_uart.h b/uart/stm32_uart.h
new file mode 100644
index 0000000..e4902a5
--- /dev/null
+++ b/uart/stm32_uart.h
@@ -0,0 +1,33 @@
+#pragma once
+
+#include <mmio/mmio.h>
+
+struct STM32_UART_reg_v1_t {
+	volatile uint32_t SR;
+	volatile uint32_t DR;
+	volatile uint32_t BRR;
+	volatile uint32_t CR1;
+	volatile uint32_t CR2;
+	volatile uint32_t CR3;
+	volatile uint32_t GTPR;
+};
+
+struct STM32_UART_reg_v2_t {
+	volatile uint32_t CR1;
+	volatile uint32_t CR2;
+	volatile uint32_t CR3;
+	volatile uint32_t BRR;
+	volatile uint32_t GTPR;
+	volatile uint32_t RTOR;
+	volatile uint32_t RQR;
+	volatile uint32_t ISR;
+	volatile uint32_t ICR;
+	volatile uint32_t RDR;
+	volatile uint32_t TDR;
+};
+
+template <typename T>
+class STM32_UART_t : public mmio_ptr<T> {
+    public:
+        using mmio_ptr<T>::ptr;
+};
diff --git a/uart/uart.h b/uart/uart.h
new file mode 100644
index 0000000..ed680ea
--- /dev/null
+++ b/uart/uart.h
@@ -0,0 +1,12 @@
+#pragma once
+
+#include "stm32_uart.h"
+
+constexpr STM32_UART_t<STM32_UART_reg_v1_t> USART1{
+        0x40011000,
+};
+constexpr STM32_UART_t<STM32_UART_reg_v1_t> USART2{
+        0x40004400,
+};
+
+