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rp2040 enable SOF as resumed signal when remote wakeup

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This commit is contained in:
hathach
2022-06-30 15:45:04 +07:00
parent 19956f070d
commit 9ec92ff97b
2 changed files with 18 additions and 9 deletions
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25
src/portable/raspberrypi/rp2040/dcd_rp2040.c
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@@ -55,6 +55,9 @@ static uint8_t *next_buffer_ptr;
// USB_MAX_ENDPOINTS Endpoints, direction TUSB_DIR_OUT for out and TUSB_DIR_IN for in.
static struct hw_endpoint hw_endpoints[USB_MAX_ENDPOINTS][2];
// SOF may be used by remote wakeup as RESUME, this indicate whether SOF is actually used by usbd
static bool _sof_enable = false;
TU_ATTR_ALWAYS_INLINE static inline struct hw_endpoint *hw_endpoint_get_by_num(uint8_t num, tusb_dir_t dir)
{
return &hw_endpoints[num][dir];
@@ -250,6 +253,10 @@ static void __tusb_irq_path_func(dcd_rp2040_irq)(void)
if (status & USB_INTF_DEV_SOF_BITS)
{
handled |= USB_INTF_DEV_SOF_BITS;
// disable SOF interrupt if it is used for RESUME in remote wakeup
if (!_sof_enable) usb_hw_clear->inte = USB_INTS_DEV_SOF_BITS;
dcd_event_sof(0, usb_hw->sof_rd & USB_SOF_RD_BITS, true);
}
@@ -411,9 +418,13 @@ void dcd_set_address (__unused uint8_t rhport, __unused uint8_t dev_addr)
void dcd_remote_wakeup(__unused uint8_t rhport)
{
pico_info("dcd_remote_wakeup %d\n", rhport);
assert(rhport == 0);
usb_hw_set->sie_ctrl = USB_SIE_CTRL_RESUME_BITS;
pico_info("dcd_remote_wakeup %d\n", rhport);
assert(rhport == 0);
// since RESUME interrupt is not triggered if we are the one initiate
// briefly enable SOF to notify usbd when bus is ready
usb_hw_set->inte = USB_INTS_DEV_SOF_BITS;
usb_hw_set->sie_ctrl = USB_SIE_CTRL_RESUME_BITS;
}
// disconnect by disabling internal pull-up resistor on D+/D-
@@ -434,17 +445,15 @@ void dcd_sof_enable(uint8_t rhport, bool en)
{
(void) rhport;
uint32_t inte = usb_hw->inte;
_sof_enable = en;
if (en)
{
inte |= USB_INTS_DEV_SOF_BITS;
usb_hw_set->inte = USB_INTS_DEV_SOF_BITS;
}else
{
inte &= ~USB_INTS_DEV_SOF_BITS;
usb_hw_clear->inte = USB_INTS_DEV_SOF_BITS;
}
usb_hw->inte = inte;
}
/*------------------------------------------------------------------*/