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-rw-r--r--src/stmf0/ao_arch_funcs.h62
-rw-r--r--src/stmf0/ao_timer.c94
-rw-r--r--src/stmf0/ao_usb_stm.c58
3 files changed, 145 insertions, 69 deletions
diff --git a/src/stmf0/ao_arch_funcs.h b/src/stmf0/ao_arch_funcs.h
index 3db96be2..8d585f80 100644
--- a/src/stmf0/ao_arch_funcs.h
+++ b/src/stmf0/ao_arch_funcs.h
@@ -18,6 +18,8 @@
#ifndef _AO_ARCH_FUNCS_H_
#define _AO_ARCH_FUNCS_H_
+#include <ao_power.h>
+
/* ao_spi_stm.c
*/
@@ -118,27 +120,44 @@ ao_spi_try_get_mask(struct stm_gpio *reg, uint16_t mask, uint8_t bus, uint32_t s
#define ao_spi_get_bit(reg,bit,pin,bus,speed) ao_spi_get_mask(reg,(1<<bit),bus,speed)
#define ao_spi_put_bit(reg,bit,pin,bus) ao_spi_put_mask(reg,(1<<bit),bus)
-#define ao_enable_port(port) do { \
- 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); \
- } while (0)
+extern struct ao_power ao_power_gpioa;
+extern struct ao_power ao_power_gpiob;
+extern struct ao_power ao_power_gpioc;
+extern struct ao_power ao_power_gpiof;
-#define ao_disable_port(port) do { \
- 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); \
- } while (0)
+static inline void ao_enable_port(struct stm_gpio *port)
+{
+ if ((port) == &stm_gpioa) {
+ stm_rcc.ahbenr |= (1 << STM_RCC_AHBENR_IOPAEN);
+ ao_power_register(&ao_power_gpioa);
+ } else if ((port) == &stm_gpiob) {
+ stm_rcc.ahbenr |= (1 << STM_RCC_AHBENR_IOPBEN);
+ ao_power_register(&ao_power_gpiob);
+ } else if ((port) == &stm_gpioc) {
+ stm_rcc.ahbenr |= (1 << STM_RCC_AHBENR_IOPCEN);
+ ao_power_register(&ao_power_gpioc);
+ } else if ((port) == &stm_gpiof) {
+ stm_rcc.ahbenr |= (1 << STM_RCC_AHBENR_IOPFEN);
+ ao_power_register(&ao_power_gpiof);
+ }
+}
+
+static inline void ao_disable_port(struct stm_gpio *port)
+{
+ if ((port) == &stm_gpioa) {
+ stm_rcc.ahbenr &= ~(1 << STM_RCC_AHBENR_IOPAEN);
+ ao_power_unregister(&ao_power_gpioa);
+ } else if ((port) == &stm_gpiob) {
+ stm_rcc.ahbenr &= ~(1 << STM_RCC_AHBENR_IOPBEN);
+ ao_power_unregister(&ao_power_gpiob);
+ } else if ((port) == &stm_gpioc) {
+ stm_rcc.ahbenr &= ~(1 << STM_RCC_AHBENR_IOPCEN);
+ ao_power_unregister(&ao_power_gpioc);
+ } else if ((port) == &stm_gpiof) {
+ stm_rcc.ahbenr &= ~(1 << STM_RCC_AHBENR_IOPFEN);
+ ao_power_unregister(&ao_power_gpiof);
+ }
+}
#define ao_gpio_set(port, bit, pin, v) stm_gpio_set(port, bit, v)
@@ -166,8 +185,7 @@ ao_spi_try_get_mask(struct stm_gpio *reg, uint16_t mask, uint8_t bus, uint32_t s
} while (0)
#define ao_enable_cs(port,bit) do { \
- stm_gpio_set((port), bit, 1); \
- stm_moder_set((port), bit, STM_MODER_OUTPUT); \
+ ao_enable_output(port, bit, pin, 1); \
} while (0)
#define ao_spi_init_cs(port, mask) do { \
diff --git a/src/stmf0/ao_timer.c b/src/stmf0/ao_timer.c
index 7d96542b..d3542a57 100644
--- a/src/stmf0/ao_timer.c
+++ b/src/stmf0/ao_timer.c
@@ -129,12 +129,9 @@ ao_clock_enable_crs(void)
(0 << STM_CRS_CR_SYNCOKIE));
}
-void
-ao_clock_init(void)
+static void
+ao_clock_hsi(void)
{
- uint32_t cfgr;
-
- /* Switch to HSI while messing about */
stm_rcc.cr |= (1 << STM_RCC_CR_HSION);
while (!(stm_rcc.cr & (1 << STM_RCC_CR_HSIRDY)))
ao_arch_nop();
@@ -152,10 +149,11 @@ ao_clock_init(void)
/* reset PLLON, CSSON, HSEBYP, HSEON */
stm_rcc.cr &= 0x0000ffff;
+}
- /* Disable all interrupts */
- stm_rcc.cir = 0;
-
+static void
+ao_clock_normal_start(void)
+{
#if AO_HSE
#define STM_RCC_CFGR_SWS_TARGET_CLOCK STM_RCC_CFGR_SWS_HSE
#define STM_RCC_CFGR_SW_TARGET_CLOCK STM_RCC_CFGR_SW_HSE
@@ -171,6 +169,11 @@ ao_clock_init(void)
stm_rcc.cr |= (1 << STM_RCC_CR_HSEON);
while (!(stm_rcc.cr & (1 << STM_RCC_CR_HSERDY)))
asm("nop");
+
+#ifdef STM_PLLSRC
+#error No code for PLL initialization yet
+#endif
+
#endif
@@ -195,10 +198,46 @@ ao_clock_init(void)
#define STM_PLLSRC STM_HSI
#define STM_RCC_CFGR_PLLSRC_TARGET_CLOCK 0
#endif
+}
-#ifdef STM_PLLSRC
-#error No code for PLL initialization yet
+static void
+ao_clock_normal_switch(void)
+{
+ uint32_t cfgr;
+
+ cfgr = stm_rcc.cfgr;
+ cfgr &= ~(STM_RCC_CFGR_SW_MASK << STM_RCC_CFGR_SW);
+ cfgr |= (STM_RCC_CFGR_SW_TARGET_CLOCK << STM_RCC_CFGR_SW);
+ stm_rcc.cfgr = cfgr;
+ for (;;) {
+ uint32_t c, part, mask, val;
+
+ c = stm_rcc.cfgr;
+ mask = (STM_RCC_CFGR_SWS_MASK << STM_RCC_CFGR_SWS);
+ val = (STM_RCC_CFGR_SWS_TARGET_CLOCK << STM_RCC_CFGR_SWS);
+ part = c & mask;
+ if (part == val)
+ break;
+ }
+#if !AO_HSI && !AO_NEED_HSI
+ /* Turn off the HSI clock */
+ stm_rcc.cr &= ~(1 << STM_RCC_CR_HSION);
#endif
+}
+
+void
+ao_clock_init(void)
+{
+ uint32_t cfgr;
+
+ /* Switch to HSI while messing about */
+ ao_clock_hsi();
+
+ /* Disable all interrupts */
+ stm_rcc.cir = 0;
+
+ /* Start high speed clock */
+ ao_clock_normal_start();
/* Set flash latency to tolerate 48MHz SYSCLK -> 1 wait state */
@@ -227,29 +266,11 @@ ao_clock_init(void)
stm_rcc.cfgr = cfgr;
/* Switch to the desired system clock */
-
- cfgr = stm_rcc.cfgr;
- cfgr &= ~(STM_RCC_CFGR_SW_MASK << STM_RCC_CFGR_SW);
- cfgr |= (STM_RCC_CFGR_SW_TARGET_CLOCK << STM_RCC_CFGR_SW);
- stm_rcc.cfgr = cfgr;
- for (;;) {
- uint32_t c, part, mask, val;
-
- c = stm_rcc.cfgr;
- mask = (STM_RCC_CFGR_SWS_MASK << STM_RCC_CFGR_SWS);
- val = (STM_RCC_CFGR_SWS_TARGET_CLOCK << STM_RCC_CFGR_SWS);
- part = c & mask;
- if (part == val)
- break;
- }
+ ao_clock_normal_switch();
/* Clear reset flags */
stm_rcc.csr |= (1 << STM_RCC_CSR_RMVF);
-#if !AO_HSI && !AO_NEED_HSI
- /* Turn off the HSI clock */
- stm_rcc.cr &= ~(1 << STM_RCC_CR_HSION);
-#endif
#if DEBUG_THE_CLOCK
/* Output SYSCLK on PA8 for measurments */
@@ -263,3 +284,18 @@ ao_clock_init(void)
stm_rcc.cfgr |= (STM_RCC_CFGR_MCOSEL_HSE << STM_RCC_CFGR_MCOSEL);
#endif
}
+
+#if AO_POWER_MANAGEMENT
+void
+ao_clock_suspend(void)
+{
+ ao_clock_hsi();
+}
+
+void
+ao_clock_resume(void)
+{
+ ao_clock_normal_start();
+ ao_clock_normal_switch();
+}
+#endif
diff --git a/src/stmf0/ao_usb_stm.c b/src/stmf0/ao_usb_stm.c
index b8146c21..691c2d56 100644
--- a/src/stmf0/ao_usb_stm.c
+++ b/src/stmf0/ao_usb_stm.c
@@ -18,8 +18,10 @@
#include "ao.h"
#include "ao_usb.h"
#include "ao_product.h"
+#include "ao_power.h"
#define USB_DEBUG 0
+#define USB_STATUS 0
#define USB_DEBUG_DATA 0
#define USB_ECHO 0
@@ -129,10 +131,9 @@ static uint8_t ao_usb_out_avail;
uint8_t ao_usb_running;
static uint8_t ao_usb_configuration;
-#define AO_USB_EP0_GOT_RESET 1
-#define AO_USB_EP0_GOT_SETUP 2
-#define AO_USB_EP0_GOT_RX_DATA 4
-#define AO_USB_EP0_GOT_TX_ACK 8
+#define AO_USB_EP0_GOT_SETUP 1
+#define AO_USB_EP0_GOT_RX_DATA 2
+#define AO_USB_EP0_GOT_TX_ACK 4
static uint8_t ao_usb_ep0_receive;
static uint8_t ao_usb_address;
@@ -438,6 +439,7 @@ static uint16_t int_count;
static uint16_t in_count;
static uint16_t out_count;
static uint16_t reset_count;
+static uint16_t suspend_count;
/* The USB memory must be accessed in 16-bit units
*/
@@ -686,11 +688,6 @@ static void
ao_usb_ep0_handle(uint8_t receive)
{
ao_usb_ep0_receive = 0;
- if (receive & AO_USB_EP0_GOT_RESET) {
- debug ("\treset\n");
- ao_usb_set_ep0();
- return;
- }
if (receive & AO_USB_EP0_GOT_SETUP) {
debug ("\tsetup\n");
ao_usb_ep0_setup();
@@ -722,6 +719,23 @@ ao_usb_ep0_handle(uint8_t receive)
}
void
+ao_usb_suspend(void)
+{
+ stm_usb.cntr |= (1 << STM_USB_CNTR_FSUSP);
+ ao_power_suspend();
+ stm_usb.cntr |= (1 << STM_USB_CNTR_LP_MODE);
+ ao_clock_suspend();
+}
+
+void
+ao_usb_wakeup(void)
+{
+ ao_clock_resume();
+ stm_usb.cntr &= ~(1 << STM_USB_CNTR_FSUSP);
+ ao_power_resume();
+}
+
+void
stm_usb_isr(void)
{
uint32_t istr = stm_usb.istr;
@@ -784,10 +798,18 @@ stm_usb_isr(void)
if (istr & (1 << STM_USB_ISTR_RESET)) {
++reset_count;
- ao_usb_ep0_receive |= AO_USB_EP0_GOT_RESET;
- ao_usb_ep0_handle(ao_usb_ep0_receive);
+ debug ("\treset\n");
+ ao_usb_set_ep0();
+ }
+ if (istr & (1 << STM_USB_ISTR_SUSP)) {
+ ++suspend_count;
+ debug ("\tsuspend\n");
+ ao_usb_suspend();
+ }
+ if (istr & (1 << STM_USB_ISTR_WKUP)) {
+ debug ("\twakeup\n");
+ ao_usb_wakeup();
}
-
}
/* Queue the current IN buffer for transmission */
@@ -1050,8 +1072,8 @@ ao_usb_enable(void)
stm_usb.cntr = ((1 << STM_USB_CNTR_CTRM) |
(0 << STM_USB_CNTR_PMAOVRM) |
(0 << STM_USB_CNTR_ERRM) |
- (0 << STM_USB_CNTR_WKUPM) |
- (0 << STM_USB_CNTR_SUSPM) |
+ (1 << STM_USB_CNTR_WKUPM) |
+ (1 << STM_USB_CNTR_SUSPM) |
(1 << STM_USB_CNTR_RESETM) |
(0 << STM_USB_CNTR_SOFM) |
(0 << STM_USB_CNTR_ESOFM) |
@@ -1086,12 +1108,12 @@ ao_usb_echo(void)
}
#endif
-#if USB_DEBUG
+#if USB_STATUS
static void
ao_usb_irq(void)
{
- printf ("control: %d out: %d in: %d int: %d reset: %d\n",
- control_count, out_count, in_count, int_count, reset_count);
+ printf ("control: %d out: %d in: %d int: %d reset: %d suspend %d\n",
+ control_count, out_count, in_count, int_count, reset_count, suspend_count);
}
__code struct ao_cmds ao_usb_cmds[] = {
@@ -1119,7 +1141,7 @@ ao_usb_init(void)
#if USB_ECHO
ao_add_task(&ao_usb_echo_task, ao_usb_echo, "usb echo");
#endif
-#if USB_DEBUG
+#if USB_STATUS
ao_cmd_register(&ao_usb_cmds[0]);
#endif
#if !USB_ECHO
generated by cgit v1.2.3 (git 2.39.1) at 2025-10-16 16:13:03 +0000