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rework usbh enumeration process using user arg from control transfer as state

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hathach 2022-03-12 14:20:57 +07:00
parent ec28593ce5
commit a5a565f7eb
3 changed files with 251 additions and 266 deletions
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30
src/host/hub.c
View File

@ -77,7 +77,8 @@ static char const* const _hub_feature_str[] =
//--------------------------------------------------------------------+ //--------------------------------------------------------------------+
// HUB // HUB
//--------------------------------------------------------------------+ //--------------------------------------------------------------------+
bool hub_port_clear_feature(uint8_t hub_addr, uint8_t hub_port, uint8_t feature, tuh_control_xfer_cb_t complete_cb) bool hub_port_clear_feature(uint8_t hub_addr, uint8_t hub_port, uint8_t feature,
tuh_control_xfer_cb_t complete_cb, uintptr_t user_arg)
{ {
tuh_control_xfer_t const xfer = tuh_control_xfer_t const xfer =
{ {
@ -97,7 +98,7 @@ bool hub_port_clear_feature(uint8_t hub_addr, uint8_t hub_port, uint8_t feature,
.buffer = NULL, .buffer = NULL,
.complete_cb = complete_cb, .complete_cb = complete_cb,
.user_arg = 0 .user_arg = user_arg
}; };
TU_LOG2("HUB Clear Feature: %s, addr = %u port = %u\r\n", _hub_feature_str[feature], hub_addr, hub_port); TU_LOG2("HUB Clear Feature: %s, addr = %u port = %u\r\n", _hub_feature_str[feature], hub_addr, hub_port);
@ -105,7 +106,8 @@ bool hub_port_clear_feature(uint8_t hub_addr, uint8_t hub_port, uint8_t feature,
return true; return true;
} }
bool hub_port_set_feature(uint8_t hub_addr, uint8_t hub_port, uint8_t feature, tuh_control_xfer_cb_t complete_cb) bool hub_port_set_feature(uint8_t hub_addr, uint8_t hub_port, uint8_t feature,
tuh_control_xfer_cb_t complete_cb, uintptr_t user_arg)
{ {
tuh_control_xfer_t const xfer = tuh_control_xfer_t const xfer =
{ {
@ -125,7 +127,7 @@ bool hub_port_set_feature(uint8_t hub_addr, uint8_t hub_port, uint8_t feature, t
.buffer = NULL, .buffer = NULL,
.complete_cb = complete_cb, .complete_cb = complete_cb,
.user_arg = 0 .user_arg = user_arg
}; };
TU_LOG2("HUB Set Feature: %s, addr = %u port = %u\r\n", _hub_feature_str[feature], hub_addr, hub_port); TU_LOG2("HUB Set Feature: %s, addr = %u port = %u\r\n", _hub_feature_str[feature], hub_addr, hub_port);
@ -133,12 +135,8 @@ bool hub_port_set_feature(uint8_t hub_addr, uint8_t hub_port, uint8_t feature, t
return true; return true;
} }
bool hub_port_reset(uint8_t hub_addr, uint8_t hub_port, tuh_control_xfer_cb_t complete_cb) bool hub_port_get_status(uint8_t hub_addr, uint8_t hub_port, void* resp,
{ tuh_control_xfer_cb_t complete_cb, uintptr_t user_arg)
return hub_port_set_feature(hub_addr, hub_port, HUB_FEATURE_PORT_RESET, complete_cb);
}
bool hub_port_get_status(uint8_t hub_addr, uint8_t hub_port, void* resp, tuh_control_xfer_cb_t complete_cb)
{ {
tuh_control_xfer_t const xfer = tuh_control_xfer_t const xfer =
{ {
@ -158,7 +156,7 @@ bool hub_port_get_status(uint8_t hub_addr, uint8_t hub_port, void* resp, tuh_con
.buffer = resp, .buffer = resp,
.complete_cb = complete_cb, .complete_cb = complete_cb,
.user_arg = 0 .user_arg = user_arg
}; };
TU_LOG2("HUB Get Port Status: addr = %u port = %u\r\n", hub_addr, hub_port); TU_LOG2("HUB Get Port Status: addr = %u port = %u\r\n", hub_addr, hub_port);
@ -271,7 +269,7 @@ static bool config_set_port_power (uint8_t dev_addr, tuh_control_xfer_t const *
// Set Port Power to be able to detect connection, starting with port 1 // Set Port Power to be able to detect connection, starting with port 1
uint8_t const hub_port = 1; uint8_t const hub_port = 1;
return hub_port_set_feature(dev_addr, hub_port, HUB_FEATURE_PORT_POWER, config_port_power_complete); return hub_port_set_feature(dev_addr, hub_port, HUB_FEATURE_PORT_POWER, config_port_power_complete, 0);
} }
static bool config_port_power_complete (uint8_t dev_addr, tuh_control_xfer_t const * xfer, xfer_result_t result) static bool config_port_power_complete (uint8_t dev_addr, tuh_control_xfer_t const * xfer, xfer_result_t result)
@ -290,7 +288,7 @@ static bool config_port_power_complete (uint8_t dev_addr, tuh_control_xfer_t con
{ {
// power next port // power next port
uint8_t const hub_port = (uint8_t) (xfer->request.wIndex + 1); uint8_t const hub_port = (uint8_t) (xfer->request.wIndex + 1);
return hub_port_set_feature(dev_addr, hub_port, HUB_FEATURE_PORT_POWER, config_port_power_complete); return hub_port_set_feature(dev_addr, hub_port, HUB_FEATURE_PORT_POWER, config_port_power_complete, 0);
} }
return true; return true;
@ -320,7 +318,7 @@ bool hub_xfer_cb(uint8_t dev_addr, uint8_t ep_addr, xfer_result_t result, uint32
{ {
if ( tu_bit_test(p_hub->status_change, port) ) if ( tu_bit_test(p_hub->status_change, port) )
{ {
hub_port_get_status(dev_addr, port, &p_hub->port_status, connection_get_status_complete); hub_port_get_status(dev_addr, port, &p_hub->port_status, connection_get_status_complete, 0);
break; break;
} }
} }
@ -344,7 +342,7 @@ static bool connection_get_status_complete (uint8_t dev_addr, tuh_control_xfer_t
//TU_VERIFY(port_status.status_current.port_power && port_status.status_current.port_enable, ); //TU_VERIFY(port_status.status_current.port_power && port_status.status_current.port_enable, );
// Acknowledge Port Connection Change // Acknowledge Port Connection Change
hub_port_clear_feature(dev_addr, port_num, HUB_FEATURE_PORT_CONNECTION_CHANGE, connection_clear_conn_change_complete); hub_port_clear_feature(dev_addr, port_num, HUB_FEATURE_PORT_CONNECTION_CHANGE, connection_clear_conn_change_complete, 0);
}else }else
{ {
// Other changes are: Enable, Suspend, Over Current, Reset, L1 state // Other changes are: Enable, Suspend, Over Current, Reset, L1 state
@ -368,7 +366,7 @@ static bool connection_clear_conn_change_complete (uint8_t dev_addr, tuh_control
if ( p_hub->port_status.status.connection ) if ( p_hub->port_status.status.connection )
{ {
// Reset port if attach event // Reset port if attach event
hub_port_reset(dev_addr, port_num, connection_port_reset_complete); hub_port_reset(dev_addr, port_num, connection_port_reset_complete, 0);
}else }else
{ {
// submit detach event // submit detach event

31
src/host/hub.h
View File

@ -171,13 +171,36 @@ typedef struct {
TU_VERIFY_STATIC( sizeof(hub_port_status_response_t) == 4, "size is not correct"); TU_VERIFY_STATIC( sizeof(hub_port_status_response_t) == 4, "size is not correct");
bool hub_port_clear_feature(uint8_t hub_addr, uint8_t hub_port, uint8_t feature, tuh_control_xfer_cb_t complete_cb); // Clear feature
bool hub_port_set_feature(uint8_t hub_addr, uint8_t hub_port, uint8_t feature, tuh_control_xfer_cb_t complete_cb); bool hub_port_clear_feature (uint8_t hub_addr, uint8_t hub_port, uint8_t feature,
tuh_control_xfer_cb_t complete_cb, uintptr_t user_arg);
bool hub_port_reset(uint8_t hub_addr, uint8_t hub_port, tuh_control_xfer_cb_t complete_cb); // Set feature
bool hub_port_get_status(uint8_t hub_addr, uint8_t hub_port, void* resp, tuh_control_xfer_cb_t complete_cb); bool hub_port_set_feature (uint8_t hub_addr, uint8_t hub_port, uint8_t feature,
tuh_control_xfer_cb_t complete_cb, uintptr_t user_arg);
// Get port status
bool hub_port_get_status (uint8_t hub_addr, uint8_t hub_port, void* resp,
tuh_control_xfer_cb_t complete_cb, uintptr_t user_arg);
// Get status from Interrupt endpoint
bool hub_edpt_status_xfer(uint8_t dev_addr); bool hub_edpt_status_xfer(uint8_t dev_addr);
// Reset a port
static inline bool hub_port_reset(uint8_t hub_addr, uint8_t hub_port,
tuh_control_xfer_cb_t complete_cb, uintptr_t user_arg)
{
return hub_port_set_feature(hub_addr, hub_port, HUB_FEATURE_PORT_RESET, complete_cb, user_arg);
}
// Clear Reset Change
static inline bool hub_port_clear_reset_change(uint8_t hub_addr, uint8_t hub_port,
tuh_control_xfer_cb_t complete_cb, uintptr_t user_arg)
{
return hub_port_clear_feature(hub_addr, hub_port, HUB_FEATURE_PORT_RESET_CHANGE, complete_cb, user_arg);
}
//--------------------------------------------------------------------+ //--------------------------------------------------------------------+
// Internal Class Driver API // Internal Class Driver API
//--------------------------------------------------------------------+ //--------------------------------------------------------------------+

456
src/host/usbh.c
View File

@ -974,114 +974,216 @@ static void process_device_unplugged(uint8_t rhport, uint8_t hub_addr, uint8_t h
//--------------------------------------------------------------------+ //--------------------------------------------------------------------+
// Enumeration Process // Enumeration Process
// is a lengthy process with a series of control transfer to configure // is a lengthy process with a series of control transfer to configure
// newly attached device. Each step is handled by a function in this // newly attached device.
// section // NOTE: due to the shared _usbh_ctrl_buf, we must complete enumerating
// TODO due to the shared _usbh_ctrl_buf, we must complete enumerating
// one device before enumerating another one. // one device before enumerating another one.
//--------------------------------------------------------------------+ //--------------------------------------------------------------------+
static bool enum_request_addr0_device_desc(void); enum {
static bool enum_get_addr0_device_desc_complete (uint8_t dev_addr, tuh_control_xfer_t const * xfer, xfer_result_t result); ENUM_IDLE,
ENUM_RESET_1, // 1st reset when attached
//ENUM_HUB_GET_STATUS_1,
ENUM_HUB_CLEAR_RESET_1,
ENUM_ADDR0_DEVICE_DESC,
ENUM_RESET_2, // 2nd reset before set address
ENUM_HUB_GET_STATUS_2,
ENUM_HUB_CLEAR_RESET_2,
ENUM_SET_ADDR,
ENUM_GET_DEVICE_DESC,
ENUM_GET_9BYTE_CONFIG_DESC,
ENUM_GET_FULL_CONFIG_DESC,
ENUM_SET_CONFIG,
ENUM_CONFIG_DRIVER
};
static bool enum_request_set_addr(void); static bool enum_request_set_addr(void);
static bool enum_set_address_complete (uint8_t dev_addr, tuh_control_xfer_t const * xfer, xfer_result_t result);
static bool enum_get_device_desc_complete (uint8_t dev_addr, tuh_control_xfer_t const * xfer, xfer_result_t result);
static bool enum_get_9byte_config_desc_complete (uint8_t dev_addr, tuh_control_xfer_t const * xfer, xfer_result_t result);
static bool enum_get_config_desc_complete (uint8_t dev_addr, tuh_control_xfer_t const * xfer, xfer_result_t result);
static bool enum_set_config_complete (uint8_t dev_addr, tuh_control_xfer_t const * xfer, xfer_result_t result);
static bool parse_configuration_descriptor (uint8_t dev_addr, tusb_desc_configuration_t const* desc_cfg); static bool parse_configuration_descriptor (uint8_t dev_addr, tusb_desc_configuration_t const* desc_cfg);
static uint8_t get_new_address(bool is_hub);
static void enum_full_complete(void); static void enum_full_complete(void);
#if CFG_TUH_HUB // process device enumeration
static bool process_enumeration(uint8_t dev_addr, tuh_control_xfer_t const * xfer, xfer_result_t result)
// Enum sequence:
// New device (reset on the way) -> Get Status 0 -> Clear Reset 0 -> Get 8byte Device Descriptor
// -> Port Reset 1 -> reset delay -> Get Status 1 -> Clear Reset 1 -> queue hub interrupt endpoint
static bool enum_hub_get_status0_complete (uint8_t dev_addr, tuh_control_xfer_t const * xfer, xfer_result_t result);
static bool enum_hub_clear_reset0_complete (uint8_t dev_addr, tuh_control_xfer_t const * xfer, xfer_result_t result);
static bool enum_hub_set_reset1_complete (uint8_t dev_addr, tuh_control_xfer_t const * xfer, xfer_result_t result);
static bool enum_hub_get_status1_complete (uint8_t dev_addr, tuh_control_xfer_t const * xfer, xfer_result_t result);
static bool enum_hub_clear_reset1_complete (uint8_t dev_addr, tuh_control_xfer_t const * xfer, xfer_result_t result);
static bool enum_hub_get_status0_complete(uint8_t dev_addr, tuh_control_xfer_t const * xfer, xfer_result_t result)
{ {
(void) dev_addr; (void) xfer; if (XFER_RESULT_SUCCESS != result)
TU_ASSERT(XFER_RESULT_SUCCESS == result);
hub_port_status_response_t port_status;
memcpy(&port_status, _usbh_ctrl_buf, sizeof(hub_port_status_response_t));
if ( !port_status.status.connection )
{ {
// device unplugged while delaying, nothing else to do, queue hub status // stop enumeration, maybe we could retry this
enum_full_complete(); enum_full_complete();
return false; return false;
} }
_dev0.speed = (port_status.status.high_speed) ? TUSB_SPEED_HIGH : uint32_t const state = (uint32_t) xfer->user_arg;
(port_status.status.low_speed ) ? TUSB_SPEED_LOW : TUSB_SPEED_FULL;
// Acknowledge Port Reset Change switch(state)
if (port_status.change.reset)
{ {
hub_port_clear_feature(_dev0.hub_addr, _dev0.hub_port, HUB_FEATURE_PORT_RESET_CHANGE, enum_hub_clear_reset0_complete); #if CFG_TUH_HUB
//case ENUM_HUB_GET_STATUS_1: break;
case ENUM_HUB_CLEAR_RESET_1:
{
hub_port_status_response_t port_status;
memcpy(&port_status, _usbh_ctrl_buf, sizeof(hub_port_status_response_t));
if ( !port_status.status.connection )
{
// device unplugged while delaying, nothing else to do
enum_full_complete();
return false;
}
_dev0.speed = (port_status.status.high_speed) ? TUSB_SPEED_HIGH :
(port_status.status.low_speed ) ? TUSB_SPEED_LOW : TUSB_SPEED_FULL;
// Acknowledge Port Reset Change
if (port_status.change.reset)
{
hub_port_clear_reset_change(_dev0.hub_addr, _dev0.hub_port, process_enumeration, ENUM_ADDR0_DEVICE_DESC);
}
}
break;
case ENUM_HUB_GET_STATUS_2:
osal_task_delay(RESET_DELAY);
TU_ASSERT( hub_port_get_status(_dev0.hub_addr, _dev0.hub_port, _usbh_ctrl_buf, process_enumeration, ENUM_HUB_CLEAR_RESET_2) );
break;
case ENUM_HUB_CLEAR_RESET_2:
{
hub_port_status_response_t port_status;
memcpy(&port_status, _usbh_ctrl_buf, sizeof(hub_port_status_response_t));
// Acknowledge Port Reset Change if Reset Successful
if (port_status.change.reset)
{
TU_ASSERT( hub_port_clear_reset_change(_dev0.hub_addr, _dev0.hub_port, process_enumeration, ENUM_SET_ADDR) );
}
}
break;
#endif
case ENUM_ADDR0_DEVICE_DESC:
{
// TODO probably doesn't need to open/close each enumeration
uint8_t const addr0 = 0;
TU_ASSERT( usbh_edpt_control_open(addr0, 8) );
// Get first 8 bytes of device descriptor for Control Endpoint size
TU_LOG2("Get 8 byte of Device Descriptor\r\n");
TU_ASSERT(tuh_descriptor_get_device(addr0, _usbh_ctrl_buf, 8, process_enumeration, ENUM_SET_ADDR));
}
break;
case ENUM_RESET_2:
// Reset device again before Set Address
TU_LOG2("Port reset \r\n");
if (_dev0.hub_addr == 0)
{
// connected directly to roothub
hcd_port_reset( _dev0.rhport );
osal_task_delay(RESET_DELAY);
// TODO: fall through to SET ADDRESS, refactor later
}
#if CFG_TUH_HUB
else
{
// after RESET_DELAY the hub_port_reset() already complete
TU_ASSERT( hub_port_reset(_dev0.hub_addr, _dev0.hub_port, process_enumeration, ENUM_HUB_GET_STATUS_2) );
break;
}
__attribute__((fallthrough));
#endif
case ENUM_SET_ADDR:
enum_request_set_addr();
break;
case ENUM_GET_DEVICE_DESC:
{
uint8_t const new_addr = (uint8_t const) xfer->request.wValue;
usbh_device_t* new_dev = get_device(new_addr);
new_dev->addressed = 1;
// TODO close device 0, may not be needed
hcd_device_close(_dev0.rhport, 0);
// open control pipe for new address
TU_ASSERT( usbh_edpt_control_open(new_addr, new_dev->ep0_size) );
// Get full device descriptor
TU_LOG2("Get Device Descriptor\r\n");
TU_ASSERT(tuh_descriptor_get_device(new_addr, _usbh_ctrl_buf, sizeof(tusb_desc_device_t), process_enumeration, ENUM_GET_9BYTE_CONFIG_DESC));
}
break;
case ENUM_GET_9BYTE_CONFIG_DESC:
{
tusb_desc_device_t const * desc_device = (tusb_desc_device_t const*) _usbh_ctrl_buf;
usbh_device_t* dev = get_device(dev_addr);
dev->vid = desc_device->idVendor;
dev->pid = desc_device->idProduct;
dev->i_manufacturer = desc_device->iManufacturer;
dev->i_product = desc_device->iProduct;
dev->i_serial = desc_device->iSerialNumber;
// if (tuh_attach_cb) tuh_attach_cb((tusb_desc_device_t*) _usbh_ctrl_buf);
// Get 9-byte for total length
uint8_t const config_idx = CONFIG_NUM - 1;
TU_LOG2("Get Configuration[0] Descriptor (9 bytes)\r\n");
TU_ASSERT( tuh_descriptor_get_configuration(dev_addr, config_idx, _usbh_ctrl_buf, 9, process_enumeration, ENUM_GET_FULL_CONFIG_DESC) );
}
break;
case ENUM_GET_FULL_CONFIG_DESC:
{
uint8_t const * desc_config = _usbh_ctrl_buf;
// Use offsetof to avoid pointer to the odd/misaligned address
uint16_t const total_len = tu_le16toh( tu_unaligned_read16(desc_config + offsetof(tusb_desc_configuration_t, wTotalLength)) );
// TODO not enough buffer to hold configuration descriptor
TU_ASSERT(total_len <= CFG_TUH_ENUMERATION_BUFSIZE);
// Get full configuration descriptor
uint8_t const config_idx = CONFIG_NUM - 1;
TU_LOG2("Get Configuration[0] Descriptor\r\n");
TU_ASSERT( tuh_descriptor_get_configuration(dev_addr, config_idx, _usbh_ctrl_buf, total_len, process_enumeration, ENUM_SET_CONFIG) );
}
break;
case ENUM_SET_CONFIG:
// Parse configuration & set up drivers
// Driver open aren't allowed to make any usb transfer yet
TU_ASSERT( parse_configuration_descriptor(dev_addr, (tusb_desc_configuration_t*) _usbh_ctrl_buf) );
TU_ASSERT( tuh_configuration_set(dev_addr, CONFIG_NUM, process_enumeration, ENUM_CONFIG_DRIVER) );
break;
case ENUM_CONFIG_DRIVER:
{
TU_LOG2("Device configured\r\n");
usbh_device_t* dev = get_device(dev_addr);
dev->configured = 1;
// Start the Set Configuration process for interfaces (itf = DRVID_INVALID)
// Since driver can perform control transfer within its set_config, this is done asynchronously.
// The process continue with next interface when class driver complete its sequence with usbh_driver_set_config_complete()
// TODO use separated API instead of using DRVID_INVALID
usbh_driver_set_config_complete(dev_addr, DRVID_INVALID);
}
break;
default:
// stop enumeration if unknown state
enum_full_complete();
break;
} }
return true; return true;
} }
static bool enum_hub_clear_reset0_complete(uint8_t dev_addr, tuh_control_xfer_t const * xfer, xfer_result_t result)
{
(void) dev_addr; (void) xfer;
TU_ASSERT(XFER_RESULT_SUCCESS == result);
enum_request_addr0_device_desc();
return true;
}
static bool enum_hub_set_reset1_complete(uint8_t dev_addr, tuh_control_xfer_t const * xfer, xfer_result_t result)
{
(void) dev_addr; (void) xfer;
TU_ASSERT(XFER_RESULT_SUCCESS == result);
osal_task_delay(RESET_DELAY);
TU_ASSERT( hub_port_get_status(_dev0.hub_addr, _dev0.hub_port, _usbh_ctrl_buf, enum_hub_get_status1_complete) );
return true;
}
static bool enum_hub_get_status1_complete(uint8_t dev_addr, tuh_control_xfer_t const * xfer, xfer_result_t result)
{
(void) dev_addr; (void) xfer;
TU_ASSERT(XFER_RESULT_SUCCESS == result);
hub_port_status_response_t port_status;
memcpy(&port_status, _usbh_ctrl_buf, sizeof(hub_port_status_response_t));
// Acknowledge Port Reset Change if Reset Successful
if (port_status.change.reset)
{
TU_ASSERT( hub_port_clear_feature(_dev0.hub_addr, _dev0.hub_port, HUB_FEATURE_PORT_RESET_CHANGE, enum_hub_clear_reset1_complete) );
}
return true;
}
static bool enum_hub_clear_reset1_complete(uint8_t dev_addr, tuh_control_xfer_t const * xfer, xfer_result_t result)
{
(void) dev_addr; (void) xfer;
TU_ASSERT(XFER_RESULT_SUCCESS == result);
enum_request_set_addr();
return true;
}
#endif // hub
static bool enum_new_device(hcd_event_t* event) static bool enum_new_device(hcd_event_t* event)
{ {
_dev0.rhport = event->rhport; _dev0.rhport = event->rhport;
@ -1100,7 +1202,14 @@ static bool enum_new_device(hcd_event_t* event)
_dev0.speed = hcd_port_speed_get(_dev0.rhport ); _dev0.speed = hcd_port_speed_get(_dev0.rhport );
TU_LOG2("%s Speed\r\n", tu_str_speed[_dev0.speed]); TU_LOG2("%s Speed\r\n", tu_str_speed[_dev0.speed]);
enum_request_addr0_device_desc(); //enum_request_addr0_device_desc();
tuh_control_xfer_t const xfer =
{
.complete_cb = process_enumeration,
.user_arg = ENUM_ADDR0_DEVICE_DESC
};
process_enumeration(0, &xfer, XFER_RESULT_SUCCESS);
} }
#if CFG_TUH_HUB #if CFG_TUH_HUB
else else
@ -1108,61 +1217,27 @@ static bool enum_new_device(hcd_event_t* event)
// connected/disconnected via external hub // connected/disconnected via external hub
// wait until device is stable // wait until device is stable
osal_task_delay(RESET_DELAY); osal_task_delay(RESET_DELAY);
TU_ASSERT( hub_port_get_status(_dev0.hub_addr, _dev0.hub_port, _usbh_ctrl_buf, enum_hub_get_status0_complete) );
// ENUM_HUB_GET_STATUS
//TU_ASSERT( hub_port_get_status(_dev0.hub_addr, _dev0.hub_port, _usbh_ctrl_buf, enum_hub_get_status0_complete, 0) );
TU_ASSERT( hub_port_get_status(_dev0.hub_addr, _dev0.hub_port, _usbh_ctrl_buf, process_enumeration, ENUM_HUB_CLEAR_RESET_1) );
} }
#endif // hub #endif // hub
return true; return true;
} }
static bool enum_request_addr0_device_desc(void) static uint8_t get_new_address(bool is_hub)
{ {
// TODO probably doesn't need to open/close each enumeration uint8_t const start = (is_hub ? CFG_TUH_DEVICE_MAX : 0) + 1;
uint8_t const addr0 = 0; uint8_t const count = (is_hub ? CFG_TUH_HUB : CFG_TUH_DEVICE_MAX);
TU_ASSERT( usbh_edpt_control_open(addr0, 8) );
// Get first 8 bytes of device descriptor for Control Endpoint size for (uint8_t i=0; i < count; i++)
TU_LOG2("Get 8 byte of Device Descriptor\r\n");
TU_ASSERT(tuh_descriptor_get_device(addr0, _usbh_ctrl_buf, 8, enum_get_addr0_device_desc_complete, 0));
return true;
}
// After Get Device Descriptor of Address 0
static bool enum_get_addr0_device_desc_complete(uint8_t dev_addr, tuh_control_xfer_t const * xfer, xfer_result_t result)
{
(void) xfer;
TU_ASSERT(0 == dev_addr);
if (XFER_RESULT_SUCCESS != result)
{ {
// stop enumeration, maybe we could retry this uint8_t const addr = start + i;
enum_full_complete(); if (!get_device(addr)->connected) return addr;
return false;
} }
return ADDR_INVALID;
tusb_desc_device_t const * desc_device = (tusb_desc_device_t const*) _usbh_ctrl_buf;
TU_ASSERT( tu_desc_type(desc_device) == TUSB_DESC_DEVICE );
// Reset device again before Set Address
TU_LOG2("Port reset \r\n");
if (_dev0.hub_addr == 0)
{
// connected directly to roothub
hcd_port_reset( _dev0.rhport );
osal_task_delay(RESET_DELAY);
enum_request_set_addr();
}
#if CFG_TUH_HUB
else
{
// after RESET_DELAY the hub_port_reset() already complete
TU_ASSERT( hub_port_reset(_dev0.hub_addr, _dev0.hub_port, enum_hub_set_reset1_complete) );
}
#endif // hub
return true;
} }
static bool enum_request_set_addr(void) static bool enum_request_set_addr(void)
@ -1201,8 +1276,8 @@ static bool enum_request_set_addr(void)
}, },
.buffer = NULL, .buffer = NULL,
.complete_cb = enum_set_address_complete, .complete_cb = process_enumeration,
.user_arg = 0 .user_arg = ENUM_GET_DEVICE_DESC
}; };
uint8_t const addr0 = 0; uint8_t const addr0 = 0;
@ -1211,104 +1286,6 @@ static bool enum_request_set_addr(void)
return true; return true;
} }
// After SET_ADDRESS is complete
static bool enum_set_address_complete(uint8_t dev_addr, tuh_control_xfer_t const * xfer, xfer_result_t result)
{
TU_ASSERT(0 == dev_addr);
TU_ASSERT(XFER_RESULT_SUCCESS == result);
uint8_t const new_addr = (uint8_t const) xfer->request.wValue;
usbh_device_t* new_dev = get_device(new_addr);
new_dev->addressed = 1;
// TODO close device 0, may not be needed
hcd_device_close(_dev0.rhport, 0);
// open control pipe for new address
TU_ASSERT( usbh_edpt_control_open(new_addr, new_dev->ep0_size) );
// Get full device descriptor
TU_LOG2("Get Device Descriptor\r\n");
TU_ASSERT(tuh_descriptor_get_device(new_addr, _usbh_ctrl_buf, sizeof(tusb_desc_device_t), enum_get_device_desc_complete, 0));
return true;
}
static bool enum_get_device_desc_complete(uint8_t dev_addr, tuh_control_xfer_t const * xfer, xfer_result_t result)
{
(void) xfer;
TU_ASSERT(XFER_RESULT_SUCCESS == result);
tusb_desc_device_t const * desc_device = (tusb_desc_device_t const*) _usbh_ctrl_buf;
usbh_device_t* dev = get_device(dev_addr);
dev->vid = desc_device->idVendor;
dev->pid = desc_device->idProduct;
dev->i_manufacturer = desc_device->iManufacturer;
dev->i_product = desc_device->iProduct;
dev->i_serial = desc_device->iSerialNumber;
// if (tuh_attach_cb) tuh_attach_cb((tusb_desc_device_t*) _usbh_ctrl_buf);
// Get 9-byte for total length
uint8_t const config_idx = CONFIG_NUM - 1;
TU_LOG2("Get Configuration[0] Descriptor (9 bytes)\r\n");
TU_ASSERT( tuh_descriptor_get_configuration(dev_addr, config_idx, _usbh_ctrl_buf, 9, enum_get_9byte_config_desc_complete, 0) );
return true;
}
static bool enum_get_9byte_config_desc_complete(uint8_t dev_addr, tuh_control_xfer_t const * xfer, xfer_result_t result)
{
(void) xfer;
TU_ASSERT(XFER_RESULT_SUCCESS == result);
// TODO not enough buffer to hold configuration descriptor
uint8_t const * desc_config = _usbh_ctrl_buf;
// Use offsetof to avoid pointer to the odd/misaligned address
uint16_t const total_len = tu_le16toh( tu_unaligned_read16(desc_config + offsetof(tusb_desc_configuration_t, wTotalLength)) );
TU_ASSERT(total_len <= CFG_TUH_ENUMERATION_BUFSIZE);
// Get full configuration descriptor
uint8_t const config_idx = CONFIG_NUM - 1;
TU_LOG2("Get Configuration[0] Descriptor\r\n");
TU_ASSERT( tuh_descriptor_get_configuration(dev_addr, config_idx, _usbh_ctrl_buf, total_len, enum_get_config_desc_complete, 0) );
return true;
}
static bool enum_get_config_desc_complete(uint8_t dev_addr, tuh_control_xfer_t const * xfer, xfer_result_t result)
{
(void) xfer;
TU_ASSERT(XFER_RESULT_SUCCESS == result);
// Parse configuration & set up drivers
// Driver open aren't allowed to make any usb transfer yet
TU_ASSERT( parse_configuration_descriptor(dev_addr, (tusb_desc_configuration_t*) _usbh_ctrl_buf) );
TU_ASSERT( tuh_configuration_set(dev_addr, CONFIG_NUM, enum_set_config_complete, 0) );
return true;
}
static bool enum_set_config_complete(uint8_t dev_addr, tuh_control_xfer_t const * xfer, xfer_result_t result)
{
(void) xfer;
TU_ASSERT(XFER_RESULT_SUCCESS == result);
TU_LOG2("Device configured\r\n");
usbh_device_t* dev = get_device(dev_addr);
dev->configured = 1;
// Start the Set Configuration process for interfaces (itf = DRVID_INVALID)
// Since driver can perform control transfer within its set_config, this is done asynchronously.
// The process continue with next interface when class driver complete its sequence with usbh_driver_set_config_complete()
// TODO use separated API instead of using DRVID_INVALID
usbh_driver_set_config_complete(dev_addr, DRVID_INVALID);
return true;
}
static bool parse_configuration_descriptor(uint8_t dev_addr, tusb_desc_configuration_t const* desc_cfg) static bool parse_configuration_descriptor(uint8_t dev_addr, tusb_desc_configuration_t const* desc_cfg)
{ {
usbh_device_t* dev = get_device(dev_addr); usbh_device_t* dev = get_device(dev_addr);
@ -1439,17 +1416,4 @@ static void enum_full_complete(void)
} }
static uint8_t get_new_address(bool is_hub)
{
uint8_t const start = (is_hub ? CFG_TUH_DEVICE_MAX : 0) + 1;
uint8_t const count = (is_hub ? CFG_TUH_HUB : CFG_TUH_DEVICE_MAX);
for (uint8_t i=0; i < count; i++)
{
uint8_t const addr = start + i;
if (!get_device(addr)->connected) return addr;
}
return ADDR_INVALID;
}
#endif #endif