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Merge branch 'master' into portability

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This commit is contained in:
hathach
2023-03-17 23:53:38 +07:00
parent 73f22e31c7 65ee11ff63
commit bdfcd50b1b
1109 changed files with 57916 additions and 19747 deletions
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166
src/portable/raspberrypi/rp2040/rp2040_usb.c
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@@ -32,23 +32,34 @@
#include <stdlib.h>
#include "rp2040_usb.h"
//--------------------------------------------------------------------+
// MACRO CONSTANT TYPEDEF PROTOTYPE
//--------------------------------------------------------------------+
// Direction strings for debug
const char *ep_dir_string[] = {
"out",
"in",
};
TU_ATTR_ALWAYS_INLINE static inline void _hw_endpoint_lock_update(__unused struct hw_endpoint * ep, __unused int delta) {
// todo add critsec as necessary to prevent issues between worker and IRQ...
// note that this is perhaps as simple as disabling IRQs because it would make
// sense to have worker and IRQ on same core, however I think using critsec is about equivalent.
static void _hw_endpoint_xfer_sync(struct hw_endpoint *ep);
#if TUD_OPT_RP2040_USB_DEVICE_UFRAME_FIX
static bool e15_is_bulkin_ep(struct hw_endpoint *ep);
static bool e15_is_critical_frame_period(struct hw_endpoint *ep);
#else
#define e15_is_bulkin_ep(x) (false)
#define e15_is_critical_frame_period(x) (false)
#endif
// if usb hardware is in host mode
TU_ATTR_ALWAYS_INLINE static inline bool is_host_mode(void)
{
return (usb_hw->main_ctrl & USB_MAIN_CTRL_HOST_NDEVICE_BITS) ? true : false;
}
static void _hw_endpoint_xfer_sync(struct hw_endpoint *ep);
static void _hw_endpoint_start_next_buffer(struct hw_endpoint *ep);
//--------------------------------------------------------------------+
//
// Implementation
//--------------------------------------------------------------------+
void rp2040_usb_init(void)
@@ -73,6 +84,8 @@ void rp2040_usb_init(void)
// Mux the controller to the onboard usb phy
usb_hw->muxing = USB_USB_MUXING_TO_PHY_BITS | USB_USB_MUXING_SOFTCON_BITS;
TU_LOG2_INT(sizeof(hw_endpoint_t));
}
void __tusb_irq_path_func(hw_endpoint_reset_transfer)(struct hw_endpoint *ep)
@@ -83,20 +96,27 @@ void __tusb_irq_path_func(hw_endpoint_reset_transfer)(struct hw_endpoint *ep)
ep->user_buf = 0;
}
void __tusb_irq_path_func(_hw_endpoint_buffer_control_update32)(struct hw_endpoint *ep, uint32_t and_mask, uint32_t or_mask) {
uint32_t value = 0;
if (and_mask) {
value = *ep->buffer_control & and_mask;
}
if (or_mask) {
value |= or_mask;
if (or_mask & USB_BUF_CTRL_AVAIL) {
if (*ep->buffer_control & USB_BUF_CTRL_AVAIL) {
panic("ep %d %s was already available", tu_edpt_number(ep->ep_addr), ep_dir_string[tu_edpt_dir(ep->ep_addr)]);
}
*ep->buffer_control = value & ~USB_BUF_CTRL_AVAIL;
// 12 cycle delay.. (should be good for 48*12Mhz = 576Mhz)
// Don't need delay in host mode as host is in charge
void __tusb_irq_path_func(_hw_endpoint_buffer_control_update32)(struct hw_endpoint *ep, uint32_t and_mask, uint32_t or_mask)
{
uint32_t value = 0;
if ( and_mask )
{
value = *ep->buffer_control & and_mask;
}
if ( or_mask )
{
value |= or_mask;
if ( or_mask & USB_BUF_CTRL_AVAIL )
{
if ( *ep->buffer_control & USB_BUF_CTRL_AVAIL )
{
panic("ep %d %s was already available", tu_edpt_number(ep->ep_addr), ep_dir_string[tu_edpt_dir(ep->ep_addr)]);
}
*ep->buffer_control = value & ~USB_BUF_CTRL_AVAIL;
// 12 cycle delay.. (should be good for 48*12Mhz = 576Mhz)
// Don't need delay in host mode as host is in charge
#if !CFG_TUH_ENABLED
__asm volatile (
"b 1f\n"
@@ -108,9 +128,10 @@ void __tusb_irq_path_func(_hw_endpoint_buffer_control_update32)(struct hw_endpoi
"1:\n"
: : : "memory");
#endif
}
}
*ep->buffer_control = value;
}
*ep->buffer_control = value;
}
// prepare buffer, return buffer control
@@ -149,17 +170,21 @@ static uint32_t __tusb_irq_path_func(prepare_ep_buffer)(struct hw_endpoint *ep,
}
// Prepare buffer control register value
static void __tusb_irq_path_func(_hw_endpoint_start_next_buffer)(struct hw_endpoint *ep)
void __tusb_irq_path_func(hw_endpoint_start_next_buffer)(struct hw_endpoint *ep)
{
uint32_t ep_ctrl = *ep->endpoint_control;
// always compute and start with buffer 0
uint32_t buf_ctrl = prepare_ep_buffer(ep, 0) | USB_BUF_CTRL_SEL;
// For now: skip double buffered for Device mode, OUT endpoint since
// For now: skip double buffered for OUT endpoint in Device mode, since
// host could send < 64 bytes and cause short packet on buffer0
// NOTE this could happen to Host mode IN endpoint
bool const force_single = !(usb_hw->main_ctrl & USB_MAIN_CTRL_HOST_NDEVICE_BITS) && !tu_edpt_dir(ep->ep_addr);
// NOTE: this could happen to Host mode IN endpoint
// Also, Host mode "interrupt" endpoint hardware is only single buffered,
// NOTE2: Currently Host bulk is implemented using "interrupt" endpoint
bool const is_host = is_host_mode();
bool const force_single = (!is_host && !tu_edpt_dir(ep->ep_addr)) ||
(is_host && tu_edpt_number(ep->ep_addr) != 0);
if(ep->remaining_len && !force_single)
{
@@ -189,7 +214,7 @@ static void __tusb_irq_path_func(_hw_endpoint_start_next_buffer)(struct hw_endpo
void hw_endpoint_xfer_start(struct hw_endpoint *ep, uint8_t *buffer, uint16_t total_len)
{
_hw_endpoint_lock_update(ep, 1);
hw_endpoint_lock_update(ep, 1);
if ( ep->active )
{
@@ -206,8 +231,20 @@ void hw_endpoint_xfer_start(struct hw_endpoint *ep, uint8_t *buffer, uint16_t to
ep->active = true;
ep->user_buf = buffer;
_hw_endpoint_start_next_buffer(ep);
_hw_endpoint_lock_update(ep, -1);
if ( e15_is_bulkin_ep(ep) )
{
usb_hw_set->inte = USB_INTS_DEV_SOF_BITS;
}
if ( e15_is_critical_frame_period(ep) )
{
ep->pending = 1;
} else
{
hw_endpoint_start_next_buffer(ep);
}
hw_endpoint_lock_update(ep, -1);
}
// sync endpoint buffer and return transferred bytes
@@ -300,7 +337,8 @@ static void __tusb_irq_path_func(_hw_endpoint_xfer_sync) (struct hw_endpoint *ep
// Returns true if transfer is complete
bool __tusb_irq_path_func(hw_endpoint_xfer_continue)(struct hw_endpoint *ep)
{
_hw_endpoint_lock_update(ep, 1);
hw_endpoint_lock_update(ep, 1);
// Part way through a transfer
if (!ep->active)
{
@@ -317,17 +355,75 @@ bool __tusb_irq_path_func(hw_endpoint_xfer_continue)(struct hw_endpoint *ep)
pico_trace("Completed transfer of %d bytes on ep %d %s\n",
ep->xferred_len, tu_edpt_number(ep->ep_addr), ep_dir_string[tu_edpt_dir(ep->ep_addr)]);
// Notify caller we are done so it can notify the tinyusb stack
_hw_endpoint_lock_update(ep, -1);
hw_endpoint_lock_update(ep, -1);
return true;
}
else
{
_hw_endpoint_start_next_buffer(ep);
if ( e15_is_critical_frame_period(ep) )
{
ep->pending = 1;
} else
{
hw_endpoint_start_next_buffer(ep);
}
}
_hw_endpoint_lock_update(ep, -1);
hw_endpoint_lock_update(ep, -1);
// More work to do
return false;
}
//--------------------------------------------------------------------+
// Errata 15
//--------------------------------------------------------------------+
#if TUD_OPT_RP2040_USB_DEVICE_UFRAME_FIX
/* Don't mark IN buffers as available during the last 200us of a full-speed
frame. This avoids a situation seen with the USB2.0 hub on a Raspberry
Pi 4 where a late IN token before the next full-speed SOF can cause port
babble and a corrupt ACK packet. The nature of the data corruption has a
chance to cause device lockup.
Use the next SOF to mark delayed buffers as available. This reduces
available Bulk IN bandwidth by approximately 20%, and requires that the
SOF interrupt is enabled while these transfers are ongoing.
Inherit the top-level enable from the corresponding Pico-SDK flag.
Applications that will not use the device in a situation where it could
be plugged into a Pi 4 or Pi 400 (for example, when directly connected
to a commodity hub or other host) can turn off the flag in the SDK.
*/
volatile uint32_t e15_last_sof = 0;
// check if Errata 15 is needed for this endpoint i.e device bulk-in
static bool __tusb_irq_path_func(e15_is_bulkin_ep) (struct hw_endpoint *ep)
{
return (!is_host_mode() && tu_edpt_dir(ep->ep_addr) == TUSB_DIR_IN &&
ep->transfer_type == TUSB_XFER_BULK);
}
// check if we need to apply Errata 15 workaround : i.e
// Endpoint is BULK IN and is currently in critical frame period i.e 20% of last usb frame
static bool __tusb_irq_path_func(e15_is_critical_frame_period) (struct hw_endpoint *ep)
{
TU_VERIFY(e15_is_bulkin_ep(ep));
/* Avoid the last 200us (uframe 6.5-7) of a frame, up to the EOF2 point.
* The device state machine cannot recover from receiving an incorrect PID
* when it is expecting an ACK.
*/
uint32_t delta = time_us_32() - e15_last_sof;
if (delta < 800 || delta > 998) {
return false;
}
TU_LOG(3, "Avoiding sof %u now %lu last %lu\n", (usb_hw->sof_rd + 1) & USB_SOF_RD_BITS, time_us_32(), e15_last_sof);
return true;
}
#endif
#endif