altos: Start work on stm32f1 support

[fw/altos] / src / stm32f1 / ao_arch_funcs.h

diff --git a/src/stm32f1/ao_arch_funcs.h b/src/stm32f1/ao_arch_funcs.h
new file mode 100644 (file)
index 0000000..db3cf9e
--- /dev/null
+++ b/src/stm32f1/ao_arch_funcs.h
@@ -0,0 +1,74 @@
+/*
+ * Copyright © 2023 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, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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_ARCH_FUNCS_H_
+#define _AO_ARCH_FUNCS_H_
+
+static inline void
+ao_enable_port(struct stm_gpio *port)
+{
+       if ((port) == &stm_gpioa)
+               stm_rcc.apb2enr |= (1 << STM_RCC_APB2ENR_IOPAEN);
+       else if ((port) == &stm_gpiob)
+               stm_rcc.apb2enr |= (1 << STM_RCC_APB2ENR_IOPBEN);
+       else if ((port) == &stm_gpioc)
+               stm_rcc.apb2enr |= (1 << STM_RCC_APB2ENR_IOPCEN);
+       else if ((port) == &stm_gpiod)
+               stm_rcc.apb2enr |= (1 << STM_RCC_APB2ENR_IOPDEN);
+       else if ((port) == &stm_gpioe)
+               stm_rcc.apb2enr |= (1 << STM_RCC_APB2ENR_IOPEEN);
+}
+
+static inline void
+ao_disable_port(struct stm_gpio *port)
+{
+       if ((port) == &stm_gpioa)
+               stm_rcc.apb2enr &= ~(1UL << STM_RCC_APB2ENR_IOPAEN);
+       else if ((port) == &stm_gpiob)
+               stm_rcc.apb2enr &= ~(1UL << STM_RCC_APB2ENR_IOPBEN);
+       else if ((port) == &stm_gpioc)
+               stm_rcc.apb2enr &= ~(1UL << STM_RCC_APB2ENR_IOPCEN);
+       else if ((port) == &stm_gpiod)
+               stm_rcc.apb2enr &= ~(1UL << STM_RCC_APB2ENR_IOPDEN);
+       else if ((port) == &stm_gpioe)
+               stm_rcc.apb2enr &= ~(1UL << STM_RCC_APB2ENR_IOPEEN);
+}
+
+#define ao_gpio_set(port, bit, v) stm_gpio_set(port, bit, v)
+
+#define ao_gpio_get(port, bit) stm_gpio_get(port, bit)
+
+#define ao_gpio_set_bits(port, bits) stm_gpio_set_bits(port, bits)
+
+#define ao_gpio_set_mask(port, bits, mask) stm_gpio_set_mask(port, bits, mask)
+
+#define ao_gpio_clr_bits(port, bits) stm_gpio_clr_bits(port, bits);
+
+#define ao_gpio_get_all(port) stm_gpio_get_all(port)
+
+static inline void
+ao_enable_output(struct stm_gpio *port, int bit, uint8_t v)
+{
+       ao_enable_port(port);
+       ao_gpio_set(port, bit, v);
+       stm_gpio_conf(port, bit,
+                     STM_GPIO_CR_MODE_OUTPUT_10MHZ,
+                     STM_GPIO_CR_CNF_OUTPUT_PUSH_PULL);
+}
+
+#endif /* _AO_ARCH_FUNCS_H_ */