altos/stmf0: Add missing ao_gpio.c

[fw/altos] / src / stmf0 / ao_gpio.c

diff --git a/src/stmf0/ao_gpio.c b/src/stmf0/ao_gpio.c
new file mode 100644 (file)
index 0000000..c7bf079
--- /dev/null
+++ b/src/stmf0/ao_gpio.c
@@ -0,0 +1,71 @@
+/*
+ * Copyright © 2016 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_gpio_suspend(void *arg)
+{
+       struct stm_gpio *port = arg;
+       if (port == &stm_gpioa)
+               stm_rcc.ahbenr &= ~(1 << STM_RCC_AHBENR_IOPAEN);
+       else if ((port) == &stm_gpiob)
+               stm_rcc.ahbenr &= ~(1 << STM_RCC_AHBENR_IOPBEN);
+       else if ((port) == &stm_gpioc)
+               stm_rcc.ahbenr &= ~(1 << STM_RCC_AHBENR_IOPCEN);
+       else if ((port) == &stm_gpiof)
+               stm_rcc.ahbenr &= ~(1 << STM_RCC_AHBENR_IOPFEN);
+}
+
+static void
+ao_gpio_resume(void *arg)
+{
+       struct stm_gpio *port = arg;
+       if (port == &stm_gpioa)
+               stm_rcc.ahbenr |= (1 << STM_RCC_AHBENR_IOPAEN);
+       else if ((port) == &stm_gpiob)
+               stm_rcc.ahbenr |= (1 << STM_RCC_AHBENR_IOPBEN);
+       else if ((port) == &stm_gpioc)
+               stm_rcc.ahbenr |= (1 << STM_RCC_AHBENR_IOPCEN);
+       else if ((port) == &stm_gpiof)
+               stm_rcc.ahbenr |= (1 << STM_RCC_AHBENR_IOPFEN);
+}
+
+struct ao_power        ao_power_gpioa = {
+       .suspend = ao_gpio_suspend,
+       .resume = ao_gpio_resume,
+       .arg = &stm_gpioa
+};
+
+struct ao_power        ao_power_gpiob = {
+       .suspend = ao_gpio_suspend,
+       .resume = ao_gpio_resume,
+       .arg = &stm_gpiob
+};
+
+struct ao_power        ao_power_gpioc = {
+       .suspend = ao_gpio_suspend,
+       .resume = ao_gpio_resume,
+       .arg = &stm_gpioc
+};
+
+struct ao_power        ao_power_gpiof = {
+       .suspend = ao_gpio_suspend,
+       .resume = ao_gpio_resume,
+       .arg = &stm_gpiof
+};
+