andy/tinyUSB
1
0
Fork 0
Code Issues Pull Requests Actions 1 Packages Projects Releases Wiki Activity

add support for native SAMD HCD

Browse Source
This commit is contained in:
Deadman
2024-02-28 00:00:55 +01:00
parent 8b1e40c3e2
commit 965e26de1d
7 changed files with 806 additions and 14 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
hw/bsp/samd21/family.c
View File

@@ -60,7 +60,13 @@
// Forward USB interrupt events to TinyUSB IRQ Handler
//--------------------------------------------------------------------+
void USB_Handler(void) {
#if CFG_TUD_ENABLED
tud_int_handler(0);
#endif
#if CFG_TUH_ENABLED && !(defined(CFG_TUH_MAX3421) && CFG_TUH_MAX3421)
tuh_int_handler(0);
#endif
}
//--------------------------------------------------------------------+
@@ -140,8 +146,14 @@ void board_init(void) {
gpio_set_pin_function(PIN_PA19, PINMUX_PA19F_TCC0_WO3);
_gclk_enable_channel(TCC0_GCLK_ID, GCLK_CLKCTRL_GEN_GCLK0_Val);
#if CFG_TUH_ENABLED && defined(CFG_TUH_MAX3421) && CFG_TUH_MAX3421
max3421_init();
#if CFG_TUH_ENABLED
#if defined(CFG_TUH_MAX3421) && CFG_TUH_MAX3421
max3421_init();
#else
// VBUS Power
gpio_set_pin_direction(PIN_PA28, GPIO_DIRECTION_OUT);
gpio_set_pin_level(PIN_PA28, true);
#endif
#endif
}

1
hw/bsp/samd21/family.cmake
View File

@@ -99,6 +99,7 @@ function(family_configure_example TARGET RTOS)
family_add_tinyusb(${TARGET} OPT_MCU_SAMD21 ${RTOS})
target_sources(${TARGET}-tinyusb PUBLIC
${TOP}/src/portable/microchip/samd/dcd_samd.c
${TOP}/src/portable/microchip/samd/hcd_samd.c
)
target_link_libraries(${TARGET}-tinyusb PUBLIC board_${BOARD})

1
hw/bsp/samd21/family.mk
View File

@@ -23,6 +23,7 @@ LDFLAGS_CLANG +=
SRC_C += \
src/portable/microchip/samd/dcd_samd.c \
src/portable/microchip/samd/hcd_samd.c \
${SDK_DIR}/gcc/gcc/startup_samd21.c \
${SDK_DIR}/gcc/system_samd21.c \
${SDK_DIR}/hal/src/hal_atomic.c \

33
hw/bsp/samd5x_e5x/family.c
View File

@@ -56,21 +56,24 @@
//--------------------------------------------------------------------+
// Forward USB interrupt events to TinyUSB IRQ Handler
//--------------------------------------------------------------------+
void USB_0_Handler(void) {
TU_ATTR_ALWAYS_INLINE inline void USB_Any_Handler(void)
{
#if CFG_TUD_ENABLED
tud_int_handler(0);
#endif
#if CFG_TUH_ENABLED && !CFG_TUH_MAX3421
tuh_int_handler(0);
#endif
}
void USB_1_Handler(void) {
tud_int_handler(0);
}
void USB_0_Handler(void) { USB_Any_Handler(); }
void USB_2_Handler(void) {
tud_int_handler(0);
}
void USB_1_Handler(void) { USB_Any_Handler(); }
void USB_3_Handler(void) {
tud_int_handler(0);
}
void USB_2_Handler(void) { USB_Any_Handler(); }
void USB_3_Handler(void) { USB_Any_Handler(); }
//--------------------------------------------------------------------+
// Implementation
@@ -138,8 +141,14 @@ void board_init(void) {
gpio_set_pin_function(PIN_PA24, PINMUX_PA24H_USB_DM);
gpio_set_pin_function(PIN_PA25, PINMUX_PA25H_USB_DP);
#if CFG_TUH_ENABLED && CFG_TUH_MAX3421
max3421_init();
#if CFG_TUH_ENABLED
#if defined(CFG_TUH_MAX3421) && CFG_TUH_MAX3421
max3421_init();
#else
// VBUS Power
gpio_set_pin_direction(PIN_PA28, GPIO_DIRECTION_OUT);
gpio_set_pin_level(PIN_PA28, true);
#endif
#endif
}

1
hw/bsp/samd5x_e5x/family.cmake
View File

@@ -96,6 +96,7 @@ function(family_configure_example TARGET RTOS)
family_add_tinyusb(${TARGET} OPT_MCU_SAMD51 ${RTOS})
target_sources(${TARGET}-tinyusb PUBLIC
${TOP}/src/portable/microchip/samd/dcd_samd.c
${TOP}/src/portable/microchip/samd/hcd_samd.c
)
target_link_libraries(${TARGET}-tinyusb PUBLIC board_${BOARD})

1
hw/bsp/samd5x_e5x/family.mk
View File

@@ -18,6 +18,7 @@ LDFLAGS_GCC += \
SRC_C += \
src/portable/microchip/samd/dcd_samd.c \
src/portable/microchip/samd/hcd_samd.c \
${SDK_DIR}/gcc/gcc/startup_${SAM_FAMILY}.c \
${SDK_DIR}/gcc/system_${SAM_FAMILY}.c \
${SDK_DIR}/hpl/gclk/hpl_gclk.c \

767
src/portable/microchip/samd/hcd_samd.c Normal file
View File

@@ -0,0 +1,767 @@
/*
* The MIT License (MIT)
*
* Copyright (c) 2024 ChrisDeadman
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
* This file is part of the TinyUSB stack.
*/
#include "tusb_option.h"
#if CFG_TUH_ENABLED && \
!(defined(CFG_TUH_MAX3421) && CFG_TUH_MAX3421) && \
(CFG_TUSB_MCU == OPT_MCU_SAMD11 || CFG_TUSB_MCU == OPT_MCU_SAMD21 || \
CFG_TUSB_MCU == OPT_MCU_SAMD51 || CFG_TUSB_MCU == OPT_MCU_SAME5X || \
CFG_TUSB_MCU == OPT_MCU_SAML22 || CFG_TUSB_MCU == OPT_MCU_SAML21)
#include "host/hcd.h"
#include "sam.h"
/*------------------------------------------------------------------*/
/* MACRO TYPEDEF CONSTANT ENUM
*------------------------------------------------------------------*/
#define USB_HOST_PTYPE_DIS 0x0
#define USB_HOST_PTYPE_CTRL 0x1
#define USB_HOST_PTYPE_ISO 0x2
#define USB_HOST_PTYPE_BULK 0x3
#define USB_HOST_PTYPE_INT 0x4
#define USB_HOST_PTYPE_EXT 0x5
#define USB_HOST_PCFG_PTOKEN_SETUP 0x0
#define USB_HOST_PCFG_PTOKEN_IN 0x1
#define USB_HOST_PCFG_PTOKEN_OUT 0x2
#define USB_PCKSIZE_ENUM(size) \
((size) >= 1024 ? 7 \
: (size) >= 1023 ? 7 \
: (size) > 256 ? 6 \
: (size) > 128 ? 5 \
: (size) > 64 ? 4 \
: (size) > 32 ? 3 \
: (size) > 16 ? 2 \
: (size) > 8 ? 1 \
: 0)
// Uncomment to use fake frame number.
// Low-Speed devices stall FNUM during enumeration :/
// #define HCD_SAMD_FAKE_FNUM
typedef struct {
uint8_t dev_addr;
uint8_t ep_addr;
uint16_t max_packet_size;
uint16_t xfer_length;
uint16_t xfer_remaining;
} usb_pipe_status_t;
CFG_TUH_MEM_SECTION CFG_TUH_MEM_ALIGN static volatile UsbHostDescriptor usb_pipe_table[USB_PIPE_NUM];
CFG_TUH_MEM_SECTION CFG_TUH_MEM_ALIGN static volatile usb_pipe_status_t usb_pipe_status_table[USB_PIPE_NUM];
CFG_TUH_MEM_SECTION CFG_TUH_MEM_ALIGN static volatile uint32_t fake_fnum;
static uint8_t samd_configure_pipe(uint8_t dev_addr, uint8_t ep_addr)
{
uint8_t pipe;
uint8_t token;
volatile usb_pipe_status_t* pipe_status;
bool same_addr = false;
bool same_ep_addr = false;
// evaluate pipe token
token = (tu_edpt_dir(ep_addr) == TUSB_DIR_IN) ? USB_HOST_PCFG_PTOKEN_IN
: tu_edpt_number(ep_addr) == 0 ? USB_HOST_PCFG_PTOKEN_SETUP
: USB_HOST_PCFG_PTOKEN_OUT;
TU_LOG3("samd_configure_pipe(token=%02X, dev_addr=%02X, ep_addr=%02X)=", token, dev_addr, ep_addr);
// find already allocated pipe
for (pipe = 0; pipe < USB_PIPE_NUM; pipe++) {
pipe_status = &usb_pipe_status_table[pipe];
same_addr = (pipe_status->dev_addr == dev_addr);
same_ep_addr = (tu_edpt_number(pipe_status->ep_addr) == tu_edpt_number(ep_addr));
if (same_ep_addr && (same_addr || (tu_edpt_number(ep_addr) == 0))) {
break;
}
}
// allocate from pool of free pipes
if (pipe >= USB_PIPE_NUM) {
for (pipe = 0; pipe < USB_PIPE_NUM; pipe++) {
pipe_status = &usb_pipe_status_table[pipe];
// found a free pipe
if (pipe_status->dev_addr >= UINT8_MAX) {
break;
}
}
}
// no pipe available :(
if (pipe >= USB_PIPE_NUM) {
TU_LOG3("ERR_NO_PIPE\r\n");
return pipe;
}
TU_LOG3("%d\r\n", pipe);
// no transfer should be in progress
TU_ASSERT(((USB->HOST.HostPipe[pipe].PCFG.bit.PTYPE == USB_HOST_PTYPE_DIS) ||
USB->HOST.HostPipe[pipe].PSTATUS.bit.PFREEZE == 1),
USB_PIPE_NUM);
// update addr and ep_addr
pipe_status->dev_addr = dev_addr;
pipe_status->ep_addr = ep_addr;
usb_pipe_table[pipe].HostDescBank[0].CTRL_PIPE.bit.PDADDR = dev_addr;
usb_pipe_table[pipe].HostDescBank[0].CTRL_PIPE.bit.PEPNUM = tu_edpt_number(ep_addr);
// token specific configuration
USB->HOST.HostPipe[pipe].PCFG.bit.PTOKEN = token;
USB->HOST.HostPipe[pipe].PINTENCLR.reg = USB_HOST_PINTENCLR_MASK;
if (token == USB_HOST_PCFG_PTOKEN_SETUP) {
USB->HOST.HostPipe[pipe].PSTATUSCLR.reg = USB_HOST_PSTATUSCLR_DTGL;
USB->HOST.HostPipe[pipe].PSTATUSCLR.reg = USB_HOST_PSTATUSCLR_BK0RDY;
USB->HOST.HostPipe[pipe].PINTENSET.reg = USB_HOST_PINTENSET_TXSTP;
USB->HOST.HostPipe[pipe].PINTENSET.reg = USB_HOST_PINTENSET_STALL;
USB->HOST.HostPipe[pipe].PINTENSET.reg = USB_HOST_PINTENSET_TRFAIL;
USB->HOST.HostPipe[pipe].PINTENSET.reg = USB_HOST_PINTENSET_PERR;
} else if (token == USB_HOST_PCFG_PTOKEN_IN) {
USB->HOST.HostPipe[pipe].PSTATUSSET.reg = USB_HOST_PSTATUSSET_BK0RDY;
USB->HOST.HostPipe[pipe].PINTENSET.reg = USB_HOST_PINTENSET_TRCPT_Msk;
USB->HOST.HostPipe[pipe].PINTENSET.reg = USB_HOST_PINTENSET_STALL;
USB->HOST.HostPipe[pipe].PINTENSET.reg = USB_HOST_PINTENSET_TRFAIL;
USB->HOST.HostPipe[pipe].PINTENSET.reg = USB_HOST_PINTENSET_PERR;
} else {
USB->HOST.HostPipe[pipe].PSTATUSCLR.reg = USB_HOST_PSTATUSCLR_BK0RDY;
USB->HOST.HostPipe[pipe].PINTENSET.reg = USB_HOST_PINTENSET_TRCPT_Msk;
USB->HOST.HostPipe[pipe].PINTENSET.reg = USB_HOST_PINTENSET_STALL;
USB->HOST.HostPipe[pipe].PINTENSET.reg = USB_HOST_PINTENSET_TRFAIL;
USB->HOST.HostPipe[pipe].PINTENSET.reg = USB_HOST_PINTENSET_PERR;
}
return pipe;
}
static void samd_free_pipe(uint8_t pipe)
{
volatile usb_pipe_status_t* pipe_status = &usb_pipe_status_table[pipe];
pipe_status->dev_addr = UINT8_MAX;
pipe_status->ep_addr = UINT8_MAX;
pipe_status->max_packet_size = 0;
pipe_status->xfer_length = 0;
pipe_status->xfer_remaining = 0;
USB->HOST.HostPipe[pipe].PSTATUSSET.reg = USB_HOST_PSTATUSSET_PFREEZE;
USB->HOST.HostPipe[pipe].PCFG.reg &= ~USB_HOST_PCFG_PTYPE_Msk;
USB->HOST.HostPipe[pipe].PINTENCLR.reg = USB_HOST_PINTENCLR_MASK;
memset((uint8_t*) &usb_pipe_table[pipe], 0, sizeof(usb_pipe_table[pipe]));
}
static void samd_free_all_pipes(void)
{
for (uint8_t pipe = 0; pipe < USB_PIPE_NUM; pipe++) {
samd_free_pipe(pipe);
}
}
static bool samd_on_xfer(uint8_t pipe, xfer_result_t xfer_result)
{
uint16_t xfer_delta;
bool xfer_complete;
volatile usb_pipe_status_t* pipe_status = &usb_pipe_status_table[pipe];
// freeze the pipe
USB->HOST.HostPipe[pipe].PSTATUSSET.reg = USB_HOST_PSTATUSSET_PFREEZE;
// get number of transferred bytes
if (xfer_result == XFER_RESULT_SUCCESS) {
xfer_delta = usb_pipe_table[pipe].HostDescBank[0].PCKSIZE.bit.BYTE_COUNT;
} else {
xfer_delta = 0;
}
TU_LOG3(
"samd_on_xfer(%d, result=%d, xdelta=%d, rem=%d)\r\n", xfer_result, pipe, xfer_delta, pipe_status->xfer_remaining);
// update pipe status
if (xfer_delta > pipe_status->xfer_remaining) {
xfer_delta = pipe_status->xfer_remaining;
}
pipe_status->xfer_remaining -= xfer_delta;
pipe_status->xfer_length += xfer_delta;
// last packet handling
if (xfer_delta < pipe_status->max_packet_size) {
pipe_status->xfer_remaining = 0;
}
// transfer complete
xfer_complete = (xfer_result != XFER_RESULT_SUCCESS) || (pipe_status->xfer_remaining == 0);
if (xfer_complete) {
return true;
}
// continue receiving
if (tu_edpt_dir(pipe_status->ep_addr) == TUSB_DIR_IN) {
usb_pipe_table[pipe].HostDescBank[0].PCKSIZE.bit.BYTE_COUNT = 0;
USB->HOST.HostPipe[pipe].PSTATUSCLR.reg = USB_HOST_PSTATUSCLR_BK0RDY;
}
// continue sending
else {
usb_pipe_table[pipe].HostDescBank[0].PCKSIZE.bit.BYTE_COUNT =
(pipe_status->xfer_remaining < pipe_status->max_packet_size) ? pipe_status->xfer_remaining
: pipe_status->max_packet_size;
USB->HOST.HostPipe[pipe].PSTATUSSET.reg = USB_HOST_PSTATUSSET_BK0RDY;
}
// advance packet buffer
usb_pipe_table[pipe].HostDescBank[0].ADDR.reg += xfer_delta;
// start next transfer
USB->HOST.HostPipe[pipe].PSTATUSCLR.reg = USB_HOST_PSTATUSCLR_PFREEZE;
return false;
}
//--------------------------------------------------------------------+
// Controller API
//--------------------------------------------------------------------+
// Interrupt Handler
void hcd_int_handler(uint8_t rhport, bool in_isr)
{
(void) rhport;
uint16_t int_flags;
uint8_t pint_flags;
xfer_result_t xfer_result;
volatile usb_pipe_status_t* pipe_status;
//
// Check INTFLAG
//
int_flags = USB->HOST.INTFLAG.reg;
if (int_flags & USB_HOST_INTFLAG_HSOF) {
USB->HOST.INTFLAG.reg = USB_HOST_INTFLAG_HSOF;
}
if (int_flags & USB_HOST_INTFLAG_RST) {
TU_LOG2("USB_HOST_INTFLAG_RST\r\n");
USB->HOST.INTFLAG.reg = USB_HOST_INTFLAG_RST;
}
if (int_flags & USB_HOST_INTFLAG_WAKEUP) {
TU_LOG3("USB_HOST_INTFLAG_WAKEUP\r\n");
USB->HOST.INTFLAG.reg = USB_HOST_INTFLAG_WAKEUP;
}
if (int_flags & USB_HOST_INTFLAG_DNRSM) {
TU_LOG3("USB_HOST_INTFLAG_DNRSM\r\n");
USB->HOST.INTFLAG.reg = USB_HOST_INTFLAG_DNRSM;
}
if (int_flags & USB_HOST_INTFLAG_UPRSM) {
TU_LOG3("USB_HOST_INTFLAG_UPRSM\r\n");
USB->HOST.INTFLAG.reg = USB_HOST_INTFLAG_UPRSM;
}
if (int_flags & USB_HOST_INTFLAG_RAMACER) {
TU_LOG1("USB_HOST_INTFLAG_RAMACER\r\n");
USB->HOST.INTFLAG.reg = USB_HOST_INTFLAG_RAMACER;
}
if (int_flags & USB_HOST_INTFLAG_DCONN) {
USB->HOST.INTFLAG.reg = USB_HOST_INTFLAG_DCONN;
hcd_event_device_attach(rhport, in_isr);
}
if (int_flags & USB_HOST_INTFLAG_DDISC) {
USB->HOST.INTFLAG.reg = USB_HOST_INTFLAG_DDISC;
hcd_event_device_remove(rhport, in_isr);
}
// handle pipe interrupts
for (uint8_t pipe = 0; pipe < USB_PIPE_NUM; pipe++) {
// get pipe handle
pipe_status = &usb_pipe_status_table[pipe];
if (pipe_status->dev_addr >= UINT8_MAX) {
continue;
}
//
// Check PINTFLAG
//
pint_flags = USB->HOST.HostPipe[pipe].PINTFLAG.reg;
xfer_result = XFER_RESULT_INVALID;
if (pint_flags & USB_HOST_PINTFLAG_TRCPT0) {
USB->HOST.HostPipe[pipe].PINTFLAG.reg = USB_HOST_PINTFLAG_TRCPT0;
xfer_result = XFER_RESULT_SUCCESS;
}
if (pint_flags & USB_HOST_PINTFLAG_TRCPT1) {
USB->HOST.HostPipe[pipe].PINTFLAG.reg = USB_HOST_PINTFLAG_TRCPT1;
xfer_result = XFER_RESULT_SUCCESS;
}
if (pint_flags & USB_HOST_PINTFLAG_TXSTP) {
USB->HOST.HostPipe[pipe].PINTFLAG.reg = USB_HOST_PINTFLAG_TXSTP;
xfer_result = XFER_RESULT_SUCCESS;
}
if (pint_flags & USB_HOST_PINTFLAG_STALL) {
TU_LOG2("USB_HOST_PINTFLAG_STALL\r\n");
USB->HOST.HostPipe[pipe].PINTFLAG.reg = USB_HOST_PINTFLAG_STALL;
xfer_result = XFER_RESULT_STALLED;
}
if (pint_flags & USB_HOST_PINTFLAG_TRFAIL) {
USB->HOST.HostPipe[pipe].PINTFLAG.reg = USB_HOST_PINTFLAG_TRFAIL;
if (usb_pipe_table[pipe].HostDescBank[0].STATUS_BK.reg & USB_HOST_STATUS_BK_ERRORFLOW) {
TU_LOG1("USB_HOST_STATUS_BK_ERRORFLOW\r\n");
xfer_result = XFER_RESULT_FAILED;
} else if (usb_pipe_table[pipe].HostDescBank[0].STATUS_BK.reg & USB_HOST_STATUS_BK_CRCERR) {
TU_LOG1("USB_HOST_STATUS_BK_CRCERR\r\n");
xfer_result = XFER_RESULT_FAILED;
} else {
// SAMD Quirk #1:
// Likes to report TRFAIL for no apparent reason -> ignore
}
}
if (pint_flags & USB_HOST_PINTFLAG_PERR) {
USB->HOST.HostPipe[pipe].PINTFLAG.reg = USB_HOST_PINTFLAG_PERR;
// Handled by STATUS_PIPE checks below
}
//
// Check STATUS_PIPE
//
if (usb_pipe_table[pipe].HostDescBank[0].STATUS_PIPE.reg & USB_HOST_STATUS_PIPE_DTGLER) {
TU_LOG1("USB_HOST_STATUS_PIPE_DTGLER\r\n");
usb_pipe_table[pipe].HostDescBank[0].STATUS_PIPE.reg &= ~USB_HOST_STATUS_PIPE_DTGLER;
xfer_result = XFER_RESULT_FAILED;
}
if (usb_pipe_table[pipe].HostDescBank[0].STATUS_PIPE.reg & USB_HOST_STATUS_PIPE_DAPIDER) {
TU_LOG1("USB_HOST_STATUS_PIPE_DAPIDER\r\n");
usb_pipe_table[pipe].HostDescBank[0].STATUS_PIPE.reg &= ~USB_HOST_STATUS_PIPE_DAPIDER;
xfer_result = XFER_RESULT_FAILED;
}
if (usb_pipe_table[pipe].HostDescBank[0].STATUS_PIPE.reg & USB_HOST_STATUS_PIPE_PIDER) {
TU_LOG1("USB_HOST_STATUS_PIPE_PIDER\r\n");
usb_pipe_table[pipe].HostDescBank[0].STATUS_PIPE.reg &= ~USB_HOST_STATUS_PIPE_PIDER;
xfer_result = XFER_RESULT_FAILED;
}
if (usb_pipe_table[pipe].HostDescBank[0].STATUS_PIPE.reg & USB_HOST_STATUS_PIPE_CRC16ER) {
TU_LOG1("USB_HOST_STATUS_PIPE_CRC16ER\r\n");
usb_pipe_table[pipe].HostDescBank[0].STATUS_PIPE.reg &= ~USB_HOST_STATUS_PIPE_CRC16ER;
xfer_result = XFER_RESULT_FAILED;
}
if (usb_pipe_table[pipe].HostDescBank[0].STATUS_PIPE.reg & USB_HOST_STATUS_PIPE_TOUTER) {
usb_pipe_table[pipe].HostDescBank[0].STATUS_PIPE.reg &= ~USB_HOST_STATUS_PIPE_TOUTER;
if ((USB->HOST.HostPipe[pipe].PCFG.bit.PTYPE == USB_HOST_PTYPE_INT) &&
(tu_edpt_dir(pipe_status->ep_addr) == TUSB_DIR_IN)) {
// ignore timeouts from INT pipes
} else {
if (xfer_result == XFER_RESULT_INVALID) {
xfer_result = XFER_RESULT_TIMEOUT;
}
}
}
// prevent PERR from too high error counts, that is handled by TinyUSB anyways
usb_pipe_table[pipe].HostDescBank[0].STATUS_PIPE.bit.ERCNT = 0;
// no updates
if (xfer_result == XFER_RESULT_INVALID) {
continue;
}
// continue / complete transfer
if (samd_on_xfer(pipe, xfer_result)) {
hcd_event_xfer_complete(pipe_status->dev_addr, pipe_status->ep_addr, pipe_status->xfer_length, xfer_result, true);
}
}
}
// Initialize controller to host mode
bool hcd_init(uint8_t rhport)
{
TU_ASSERT(rhport == 0);
fake_fnum = 0;
// reset to get in a clean state.
USB->HOST.CTRLA.bit.SWRST = 1;
while (USB->HOST.SYNCBUSY.bit.SWRST == 0)
;
while (USB->HOST.SYNCBUSY.bit.SWRST == 1)
;
// load pad calibration
USB->HOST.PADCAL.bit.TRANSP = (*((uint32_t*) USB_FUSES_TRANSP_ADDR) & USB_FUSES_TRANSP_Msk) >> USB_FUSES_TRANSP_Pos;
USB->HOST.PADCAL.bit.TRANSN = (*((uint32_t*) USB_FUSES_TRANSN_ADDR) & USB_FUSES_TRANSN_Msk) >> USB_FUSES_TRANSN_Pos;
USB->HOST.PADCAL.bit.TRIM = (*((uint32_t*) USB_FUSES_TRIM_ADDR) & USB_FUSES_TRIM_Msk) >> USB_FUSES_TRIM_Pos;
USB->HOST.QOSCTRL.bit.CQOS = 3; // High Quality
USB->HOST.QOSCTRL.bit.DQOS = 3; // High Quality
// configure host-mode
samd_free_all_pipes(); // initializes pipe handles and usb_pipe_table
USB->HOST.DESCADD.reg = (uint32_t) (&usb_pipe_table[0]);
USB->HOST.CTRLB.reg = USB_HOST_CTRLB_SPDCONF_NORMAL | USB_HOST_CTRLB_VBUSOK;
USB->HOST.CTRLA.reg = USB_CTRLA_MODE_HOST | USB_CTRLA_ENABLE | USB_CTRLA_RUNSTDBY;
while (USB->HOST.SYNCBUSY.bit.ENABLE == 1)
;
// enable basic USB interrupts
USB->HOST.INTFLAG.reg |= USB->HOST.INTFLAG.reg; // clear pending
USB->HOST.INTENCLR.reg = USB_HOST_INTENCLR_MASK;
USB->HOST.INTENSET.reg = USB_HOST_INTENSET_DCONN;
USB->HOST.INTENSET.reg = USB_HOST_INTENSET_DDISC;
USB->HOST.INTENSET.reg = USB_HOST_INTENSET_WAKEUP;
USB->HOST.INTENSET.reg = USB_HOST_INTENSET_RST;
return true;
}
#if CFG_TUSB_MCU == OPT_MCU_SAMD51 || CFG_TUSB_MCU == OPT_MCU_SAME5X
// Enable USB interrupt
void hcd_int_enable(uint8_t rhport)
{
(void) rhport;
NVIC_EnableIRQ(USB_0_IRQn);
NVIC_EnableIRQ(USB_1_IRQn);
NVIC_EnableIRQ(USB_2_IRQn);
NVIC_EnableIRQ(USB_3_IRQn);
}
// Disable USB interrupt
void hcd_int_disable(uint8_t rhport)
{
(void) rhport;
NVIC_DisableIRQ(USB_3_IRQn);
NVIC_DisableIRQ(USB_2_IRQn);
NVIC_DisableIRQ(USB_1_IRQn);
NVIC_DisableIRQ(USB_0_IRQn);
}
#elif CFG_TUSB_MCU == OPT_MCU_SAMD11 || CFG_TUSB_MCU == OPT_MCU_SAMD21 || \
CFG_TUSB_MCU == OPT_MCU_SAML22 || CFG_TUSB_MCU == OPT_MCU_SAML21
// Enable USB interrupt
void hcd_int_enable(uint8_t rhport)
{
(void) rhport;
NVIC_EnableIRQ(USB_IRQn);
}
// Disable USB interrupt
void hcd_int_disable(uint8_t rhport)
{
(void) rhport;
NVIC_DisableIRQ(USB_IRQn);
}
#else
#error "No implementation available for hcd_int_enable / hcd_int_disable"
#endif
// Get frame number (1ms)
uint32_t hcd_frame_number(uint8_t rhport)
{
(void) rhport;
// SAMD Quirk #2:
// FNUM is stalled before enumeration of Low-Speed devices.
// internal frame counter can be used as workaround (not very accurate)
#ifdef HCD_SAMD_FAKE_FNUM
uint8_t start, current, prev;
uint8_t loop_count = (USB->HOST.STATUS.bit.SPEED == TUSB_SPEED_HIGH) ? 8 : 1;
for (uint8_t i = 0; i < loop_count; i++) {
start = USB->HOST.FLENHIGH.reg;
current = start;
// wait until wrap-around
prev = current;
while (current <= start) {
current = USB->HOST.FLENHIGH.reg;
if (current > prev)
break;
prev = current;
}
// wait until start is reached again
prev = current;
while (current > start) {
current = USB->HOST.FLENHIGH.reg;
if (current > prev)
break;
prev = current;
}
}
fake_fnum += 1;
return fake_fnum;
#else
return USB->HOST.FNUM.bit.FNUM;
#endif // HCD_SAMD_FAKE_FNUM
}
//--------------------------------------------------------------------+
// Port API
//--------------------------------------------------------------------+
// Get the current connect status of roothub port
bool hcd_port_connect_status(uint8_t rhport)
{
TU_ASSERT(rhport == 0);
return USB->HOST.STATUS.bit.LINESTATE != 0;
}
// Reset USB bus on the port. Return immediately, bus reset sequence may not be
// complete. Some port would require hcd_port_reset_end() to be invoked after 10ms to
// complete the reset sequence.
void hcd_port_reset(uint8_t rhport)
{
hcd_int_disable(rhport);
samd_free_all_pipes();
USB->HOST.INTFLAG.reg |= USB->HOST.INTFLAG.reg; // clear pending
USB->HOST.CTRLB.bit.BUSRESET = 1;
fake_fnum = 0;
}
// Complete bus reset sequence, may be required by some controllers
void hcd_port_reset_end(uint8_t rhport)
{
while (USB->HOST.INTFLAG.bit.RST == 0)
;
USB->HOST.INTFLAG.reg = USB_HOST_INTFLAG_RST;
USB->HOST.CTRLB.bit.SOFE = 1;
hcd_int_enable(rhport);
}
// Get port link speed
tusb_speed_t hcd_port_speed_get(uint8_t rhport)
{
(void) rhport;
switch (USB->HOST.STATUS.bit.SPEED) {
case 0:
return TUSB_SPEED_FULL;
case 1:
return TUSB_SPEED_LOW;
case 2:
return TUSB_SPEED_HIGH;
default:
return TUSB_SPEED_INVALID;
}
}
// HCD closes all opened endpoints belong to this device
void hcd_device_close(uint8_t rhport, uint8_t dev_addr)
{
(void) rhport;
for (uint8_t pipe = 0; pipe < USB_PIPE_NUM; pipe++) {
volatile usb_pipe_status_t* pipe_status = &usb_pipe_status_table[pipe];
if (pipe_status->dev_addr == dev_addr) {
samd_free_pipe(pipe);
}
}
}
//--------------------------------------------------------------------+
// Endpoints API
//--------------------------------------------------------------------+
// Open an endpoint
bool hcd_edpt_open(uint8_t rhport, uint8_t dev_addr, tusb_desc_endpoint_t const* ep_desc)
{
TU_ASSERT(rhport == 0);
uint8_t pipe;
volatile usb_pipe_status_t* pipe_status;
const uint8_t ep_addr = ep_desc->bEndpointAddress;
const uint8_t bmAttributes = (ep_desc->bmAttributes.xfer) |
((ep_desc->bmAttributes.sync) << 2) |
((ep_desc->bmAttributes.usage) << 4);
// configure the pipe
pipe = samd_configure_pipe(dev_addr, ep_addr);
if (pipe >= USB_PIPE_NUM) {
return false;
}
// initial configuration
pipe_status = &usb_pipe_status_table[pipe];
USB->HOST.HostPipe[pipe].PCFG.reg &= ~USB_HOST_PCFG_PTYPE_Msk;
USB->HOST.HostPipe[pipe].PCFG.bit.PTYPE = bmAttributes + 1;
USB->HOST.HostPipe[pipe].BINTERVAL.reg = ep_desc->bInterval;
USB->HOST.HostPipe[pipe].PSTATUSCLR.reg = USB_HOST_PSTATUSCLR_DTGL;
USB->HOST.HostPipe[pipe].PINTENCLR.reg = USB_HOST_PINTENCLR_MASK;
pipe_status->max_packet_size = ep_desc->wMaxPacketSize;
usb_pipe_table[pipe].HostDescBank[0].PCKSIZE.bit.SIZE = USB_PCKSIZE_ENUM(pipe_status->max_packet_size);
usb_pipe_table[pipe].HostDescBank[0].PCKSIZE.bit.AUTO_ZLP = 0;
return true;
}
// Submit a special transfer to send 8-byte Setup Packet, when complete
// hcd_event_xfer_complete() must be invoked
bool hcd_setup_send(uint8_t rhport, uint8_t dev_addr, uint8_t const setup_packet[8])
{
TU_ASSERT(rhport == 0);
uint8_t pipe;
volatile usb_pipe_status_t* pipe_status;
// configure the pipe
pipe = samd_configure_pipe(dev_addr, 0);
if (pipe >= USB_PIPE_NUM) {
return false;
}
// prepare transfer
pipe_status = &usb_pipe_status_table[pipe];
usb_pipe_table[pipe].HostDescBank[0].ADDR.reg = (uint32_t) setup_packet;
pipe_status->xfer_remaining = 8;
pipe_status->xfer_length = 0;
usb_pipe_table[pipe].HostDescBank[0].PCKSIZE.bit.BYTE_COUNT = 8;
usb_pipe_table[pipe].HostDescBank[0].PCKSIZE.bit.MULTI_PACKET_SIZE = 0;
USB->HOST.HostPipe[pipe].PSTATUSSET.reg = USB_HOST_PSTATUSSET_BK0RDY;
// clear pending interrupts
USB->HOST.HostPipe[pipe].PINTFLAG.reg |= USB->HOST.HostPipe[pipe].PINTFLAG.reg;
// begin transfer
USB->HOST.HostPipe[pipe].PSTATUSCLR.reg = USB_HOST_PSTATUSCLR_PFREEZE;
return true;
}
// Submit a transfer, when complete hcd_event_xfer_complete() must be invoked
bool hcd_edpt_xfer(uint8_t rhport, uint8_t dev_addr, uint8_t ep_addr, uint8_t* buffer, uint16_t buflen)
{
TU_ASSERT(rhport == 0);
uint8_t pipe;
volatile usb_pipe_status_t* pipe_status;
// configure the pipe
pipe = samd_configure_pipe(dev_addr, ep_addr);
if (pipe >= USB_PIPE_NUM) {
return false;
}
// prepare transfer
pipe_status = &usb_pipe_status_table[pipe];
usb_pipe_table[pipe].HostDescBank[0].ADDR.reg = (uint32_t) buffer;
pipe_status->xfer_remaining = buflen;
pipe_status->xfer_length = 0;
// receive data
if (tu_edpt_dir(pipe_status->ep_addr) == TUSB_DIR_IN) {
usb_pipe_table[pipe].HostDescBank[0].PCKSIZE.bit.BYTE_COUNT = 0;
usb_pipe_table[pipe].HostDescBank[0].PCKSIZE.bit.MULTI_PACKET_SIZE = pipe_status->max_packet_size;
USB->HOST.HostPipe[pipe].PSTATUSCLR.reg = USB_HOST_PSTATUSCLR_BK0RDY;
}
// send data
else {
usb_pipe_table[pipe].HostDescBank[0].PCKSIZE.bit.BYTE_COUNT =
(pipe_status->xfer_remaining < pipe_status->max_packet_size) ? pipe_status->xfer_remaining
: pipe_status->max_packet_size;
usb_pipe_table[pipe].HostDescBank[0].PCKSIZE.bit.MULTI_PACKET_SIZE = 0;
USB->HOST.HostPipe[pipe].PSTATUSSET.reg = USB_HOST_PSTATUSSET_BK0RDY;
}
// clear pending interrupts
USB->HOST.HostPipe[pipe].PINTFLAG.reg |= USB->HOST.HostPipe[pipe].PINTFLAG.reg;
// begin transfer
USB->HOST.HostPipe[pipe].PSTATUSCLR.reg = USB_HOST_PSTATUSCLR_PFREEZE;
return true;
}
// Abort a queued transfer. Note: it can only abort transfer that has not been
// started Return true if a queued transfer is aborted, false if there is no transfer
// to abort
bool hcd_edpt_abort_xfer(uint8_t rhport, uint8_t dev_addr, uint8_t ep_addr)
{
TU_ASSERT(rhport == 0);
uint8_t pipe;
volatile usb_pipe_status_t* pipe_status;
TU_LOG3("hcd_edpt_abort_xfer(dev_addr=%02X, ep_addr=%02X)=", dev_addr, ep_addr);
// find the pipe
for (pipe = 0; pipe < USB_PIPE_NUM; pipe++) {
pipe_status = &usb_pipe_status_table[pipe];
if ((pipe_status->dev_addr == dev_addr) && (pipe_status->ep_addr == ep_addr)) {
break;
}
}
// pipe not found
if (pipe >= USB_PIPE_NUM) {
TU_LOG3("ERR_NO_PIPE\r\n");
return false;
}
TU_LOG3("%d\r\n", pipe);
// no transfer in progress
if (USB->HOST.HostPipe[pipe].PSTATUS.bit.PFREEZE == 1) {
return false;
}
// abort the transfer
USB->HOST.HostPipe[pipe].PSTATUSSET.reg = USB_HOST_PSTATUSSET_PFREEZE;
pipe_status = &usb_pipe_status_table[pipe];
pipe_status->xfer_length = 0;
pipe_status->xfer_remaining = 0;
return true;
}
// clear stall, data toggle is also reset to DATA0
bool hcd_edpt_clear_stall(uint8_t rhport, uint8_t dev_addr, uint8_t ep_addr)
{
TU_ASSERT(rhport == 0);
uint8_t pipe;
volatile usb_pipe_status_t* pipe_status;
TU_LOG3("hcd_edpt_clear_stall(dev_addr=%02X, ep_addr=%02X)=", dev_addr, ep_addr);
// find the pipe
for (pipe = 0; pipe < USB_PIPE_NUM; pipe++) {
pipe_status = &usb_pipe_status_table[pipe];
if ((pipe_status->dev_addr == dev_addr) && (pipe_status->ep_addr == ep_addr)) {
break;
}
}
// pipe not found
if (pipe >= USB_PIPE_NUM) {
TU_LOG3("ERR_NO_PIPE\r\n");
return false;
}
TU_LOG3("%d\r\n", pipe);
// clear pending interrupts
USB->HOST.HostPipe[pipe].PINTFLAG.reg |= USB->HOST.HostPipe[pipe].PINTFLAG.reg;
// clear stalled state
USB->HOST.HostPipe[pipe].PSTATUSSET.reg = USB_HOST_PSTATUSSET_PFREEZE;
USB->HOST.HostPipe[pipe].PSTATUSCLR.reg = USB_HOST_PSTATUSCLR_DTGL;
return true;
}
#endif