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authorDaniel Friesel <derf@finalrewind.org>2021-02-18 23:01:57 +0100
committerDaniel Friesel <derf@finalrewind.org>2021-02-18 23:01:57 +0100
commit38f0e84d3b5da56c1441f2f779246ccf7b23d5c4 (patch)
tree9fdb70ca1393ca8de11b11e751feb12c36afb8d3 /include/arch
parentb3cea73a75cb46e39ed7c7e6f765fc842a40fabf (diff)
add minimal LM4F120H5QR (LM4F120XL Stellaris Launchpad) support
Diffstat (limited to 'include/arch')
-rw-r--r--include/arch/lm4f120h5qr-stellaris/driver/gpio.h63
-rw-r--r--include/arch/lm4f120h5qr-stellaris/driver/stdout.h24
-rw-r--r--include/arch/lm4f120h5qr-stellaris/driver/uptime.h32
-rw-r--r--include/arch/lm4f120h5qr-stellaris/lm4f_cpp_wrapper.h16
4 files changed, 135 insertions, 0 deletions
diff --git a/include/arch/lm4f120h5qr-stellaris/driver/gpio.h b/include/arch/lm4f120h5qr-stellaris/driver/gpio.h
new file mode 100644
index 0000000..f71164e
--- /dev/null
+++ b/include/arch/lm4f120h5qr-stellaris/driver/gpio.h
@@ -0,0 +1,63 @@
+/*
+ * Copyright 2021 Daniel Friesel
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+#ifndef GPIO_H
+#define GPIO_H
+
+extern "C" {
+#include "lm4f_cpp_wrapper.h"
+}
+
+class GPIO {
+ private:
+ GPIO(const GPIO &copy);
+
+ public:
+ GPIO () {}
+
+ enum Pin : unsigned char {
+ pa_0 = 0, pa_1, pa_2, pa_3, pa_4, pa_5, pa_6, pa_7,
+ pb_0, pb_1, pb_2, pb_3, pb_4, pb_5, pb_6, pb_7,
+ pc_0, pc_1, pc_2, pc_3, pc_4, pc_5, pc_6, pc_7,
+ pd_0, pd_1, pd_2, pd_3, pd_4, pd_5, pd_6, pd_7,
+ pe_0, pe_1, pe_2, pe_3, pe_4, pe_5, pe_6, pe_7,
+ pf_0, pf_1, pf_2, pf_3, pf_4,
+ PIN_INVALID
+ };
+
+ inline void setup() {
+ mp_gpio_setup();
+ }
+ inline void led_on(unsigned char id) {
+ mp_gpio_write(pf_1 + id, 1);
+ }
+ inline void led_off(unsigned char id) {
+ mp_gpio_write(pf_1 + id, 0);
+ }
+ inline void led_toggle(unsigned char id) {
+ mp_gpio_write(pf_1 + id, !mp_gpio_read(pf_1 + id));
+ }
+ inline void input(unsigned char const pin) {
+ mp_gpio_input(pin);
+ }
+ inline void input(unsigned char const pin, unsigned char const pull) {
+ }
+ inline void output(unsigned char const pin) {
+ mp_gpio_output(pin);
+ }
+ /*
+ inline void output(unsigned char const pin, unsigned char const value) {
+ }*/
+ inline unsigned int read(unsigned char const pin) {
+ return mp_gpio_read(pin);
+ }
+ inline void write(unsigned char const pin, unsigned char value) {
+ mp_gpio_write(pin, value);
+ }
+};
+
+extern GPIO gpio;
+
+#endif
diff --git a/include/arch/lm4f120h5qr-stellaris/driver/stdout.h b/include/arch/lm4f120h5qr-stellaris/driver/stdout.h
new file mode 100644
index 0000000..09b18c1
--- /dev/null
+++ b/include/arch/lm4f120h5qr-stellaris/driver/stdout.h
@@ -0,0 +1,24 @@
+/*
+ * Copyright 2021 Daniel Friesel
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+#ifndef STANDARDOUTPUT_H
+#define STANDARDOUTPUT_H
+
+#include "object/outputstream.h"
+
+class StandardOutput : public OutputStream {
+ private:
+ StandardOutput(const StandardOutput &copy);
+
+ public:
+ StandardOutput () {}
+ void setup();
+
+ virtual void put(char c) override;
+};
+
+extern StandardOutput kout;
+
+#endif
diff --git a/include/arch/lm4f120h5qr-stellaris/driver/uptime.h b/include/arch/lm4f120h5qr-stellaris/driver/uptime.h
new file mode 100644
index 0000000..4031e61
--- /dev/null
+++ b/include/arch/lm4f120h5qr-stellaris/driver/uptime.h
@@ -0,0 +1,32 @@
+/*
+ * Copyright 2021 Daniel Friesel
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+#ifndef UPTIME_H
+#define UPTIME_H
+
+#include <stdint.h>
+
+class Uptime {
+ private:
+ Uptime(const Uptime &copy);
+#ifdef TIMER_S
+ uint32_t seconds;
+#endif
+
+ public:
+#ifdef TIMER_S
+ Uptime () : seconds(0) {}
+#else
+ Uptime () {}
+#endif
+#ifdef TIMER_S
+ inline uint32_t get_s() { return seconds; }
+ inline void tick_s() { seconds++; }
+#endif
+};
+
+extern Uptime uptime;
+
+#endif
diff --git a/include/arch/lm4f120h5qr-stellaris/lm4f_cpp_wrapper.h b/include/arch/lm4f120h5qr-stellaris/lm4f_cpp_wrapper.h
new file mode 100644
index 0000000..739f575
--- /dev/null
+++ b/include/arch/lm4f120h5qr-stellaris/lm4f_cpp_wrapper.h
@@ -0,0 +1,16 @@
+/*
+ * Copyright 2021 Daniel Friesel
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+void arch_clock_init();
+void arch_init_loop();
+
+void mp_uart_setup();
+void mp_uart_send_blocking(char c);
+
+void mp_gpio_setup();
+void mp_gpio_input(unsigned char const pin);
+void mp_gpio_output(unsigned char const pin);
+unsigned int mp_gpio_read(unsigned char const pin);
+void mp_gpio_write(unsigned char const pin, unsigned char value);