altos: USBtrng v2.0 hardware bringup

Gets the USB connection running and blinks the LEDs.

Signed-off-by: Keith Packard <keithp@keithp.com>

diff --git a/src/usbtrng-v2.0/Makefile b/src/usbtrng-v2.0/Makefile
new file mode 100644 (file)
index 0000000..0d23763
--- /dev/null
+++ b/src/usbtrng-v2.0/Makefile
@@ -0,0 +1,64 @@
+#
+# AltOS build
+#
+#
+
+include ../stmf0/Makefile.defs
+
+INC = \
+       ao.h \
+       ao_arch.h \
+       ao_arch_funcs.h \
+       ao_pins.h \
+       ao_product.h \
+       ao_task.h \
+       stm32f0.h
+
+#
+# Common AltOS sources
+#
+ALTOS_SRC = \
+       ao_interrupt.c \
+       ao_timer.c \
+       ao_panic.c \
+       ao_stdio.c \
+       ao_led.c \
+       ao_romconfig.c \
+       ao_boot_chain.c \
+       ao_cmd.c \
+       ao_usb_stm.c \
+       ao_task.c \
+       ao_product.c
+
+PRODUCT=usbtrng-v2.0
+PRODUCT_DEF=-DUSBTRNG_V_2_0
+IDPRODUCT=0x0028
+
+CFLAGS = $(PRODUCT_DEF) $(STMF0_CFLAGS) -g -Os
+
+PROGNAME=usbtrng-v2.0
+PROG=$(PROGNAME)-$(VERSION).elf
+HEX=$(PROGNAME)-$(VERSION).ihx
+
+SRC=$(ALTOS_SRC) ao_usbtrng.c
+OBJ=$(SRC:.c=.o)
+
+all: $(PROG) $(HEX)
+
+$(PROG): Makefile $(OBJ) altos.ld
+       $(call quiet,CC) $(LDFLAGS) $(CFLAGS) -o $(PROG) $(OBJ) $(LIBS)
+
+ao_product.h: ao-make-product.5c ../Version
+       $(call quiet,NICKLE,$<) $< -m altusmetrum.org -i $(IDPRODUCT) -p $(PRODUCT) -v $(VERSION) > $@
+
+$(OBJ): $(INC)
+
+distclean:     clean
+
+clean:
+       rm -f *.o $(PROGNAME)-*.elf $(PROGNAME)-*.ihx
+       rm -f ao_product.h
+
+install:
+
+uninstall:

diff --git a/src/usbtrng-v2.0/ao_pins.h b/src/usbtrng-v2.0/ao_pins.h
new file mode 100644 (file)
index 0000000..bbf5e15
--- /dev/null
+++ b/src/usbtrng-v2.0/ao_pins.h
@@ -0,0 +1,45 @@
+/*
+ * Copyright © 2015 Keith Packard <keithp@keithp.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+
+#ifndef _AO_PINS_H_
+#define _AO_PINS_H_
+
+#define LED_PORT_ENABLE        STM_RCC_AHBENR_IOPAEN
+#define LED_PORT       (&stm_gpioa)
+#define LED_PIN_RED    2
+#define LED_PIN_GREEN  3
+#define AO_LED_RED     (1 << LED_PIN_RED)
+#define AO_LED_GREEN   (1 << LED_PIN_GREEN)
+
+#define LEDS_AVAILABLE (AO_LED_RED | AO_LED_GREEN)
+
+#define HAS_BEEP       0
+
+/* 48MHz clock based on USB */
+#define AO_HSI48       1
+
+/* HCLK = 48MHz */
+#define AO_AHB_PRESCALER       1
+#define AO_RCC_CFGR_HPRE_DIV   STM_RCC_CFGR_HPRE_DIV_1
+
+/* APB = 48MHz */
+#define AO_APB_PRESCALER       1
+#define AO_RCC_CFGR_PPRE_DIV   STM_RCC_CFGR_PPRE_DIV_1
+
+#define HAS_USB                1
+
+#endif /* _AO_PINS_H_ */

diff --git a/src/usbtrng-v2.0/ao_usbtrng.c b/src/usbtrng-v2.0/ao_usbtrng.c
new file mode 100644 (file)
index 0000000..9b6fd4f
--- /dev/null
+++ b/src/usbtrng-v2.0/ao_usbtrng.c
@@ -0,0 +1,45 @@
+/*
+ * Copyright © 2014 Keith Packard <keithp@keithp.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+
+#include <ao.h>
+
+static void ao_blink(void)
+{
+       for (;;) {
+               ao_led_toggle(LEDS_AVAILABLE);
+               ao_delay(AO_MS_TO_TICKS(500));
+       }
+}
+
+struct ao_task blink_task;
+
+void main(void)
+{
+       ao_led_init(LEDS_AVAILABLE);
+       ao_led_on(AO_LED_RED);
+       ao_clock_init();
+       ao_task_init();
+       ao_timer_init();
+
+       ao_cmd_init();
+
+       ao_usb_init();
+
+       ao_add_task(&blink_task, ao_blink, "blink");
+
+       ao_start_scheduler();
+}