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/*
* The MIT License (MIT)
*
* Copyright (c) 2019 Ha Thach (tinyusb.org)
*
* 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.
*/
#ifndef _TUSB_HCD_H_
#define _TUSB_HCD_H_
#include "common/tusb_common.h"
#include "osal/osal.h"
#include "common/tusb_fifo.h"
#include "hcd_attr.h"
#ifdef __cplusplus
extern "C" {
#endif
//--------------------------------------------------------------------+
// MACRO CONSTANT TYPEDEF
//--------------------------------------------------------------------+
typedef enum
{
HCD_EVENT_DEVICE_ATTACH,
HCD_EVENT_DEVICE_REMOVE,
HCD_EVENT_XFER_COMPLETE,
// Not an HCD event, just a convenient way to defer ISR function
USBH_EVENT_FUNC_CALL,
HCD_EVENT_COUNT
} hcd_eventid_t;
typedef struct
{
uint8_t rhport;
uint8_t event_id;
uint8_t dev_addr;
union
{
// Attach, Remove
struct {
uint8_t hub_addr;
uint8_t hub_port;
uint8_t speed;
} connection;
// XFER_COMPLETE
struct {
uint8_t ep_addr;
uint8_t result;
uint32_t len;
} xfer_complete;
// FUNC_CALL
struct {
void (*func) (void*);
void* param;
}func_call;
};
} hcd_event_t;
#if TUSB_OPT_HOST_ENABLED
// Max number of endpoints per device
enum {
// TODO better computation
HCD_MAX_ENDPOINT = CFG_TUH_DEVICE_MAX*(CFG_TUH_HUB + CFG_TUH_HID*2 + CFG_TUH_MSC*2 + CFG_TUH_CDC*3),
HCD_MAX_XFER = HCD_MAX_ENDPOINT*2,
};
//#define HCD_MAX_ENDPOINT 16
//#define HCD_MAX_XFER 16
typedef struct {
uint8_t rhport;
uint8_t hub_addr;
uint8_t hub_port;
uint8_t speed;
} hcd_devtree_info_t;
#endif
//--------------------------------------------------------------------+
// Controller API
//--------------------------------------------------------------------+
// Initialize controller to host mode
bool hcd_init(uint8_t rhport);
// Interrupt Handler
void hcd_int_handler(uint8_t rhport);
// Enable USB interrupt
void hcd_int_enable (uint8_t rhport);
// Disable USB interrupt
void hcd_int_disable(uint8_t rhport);
// Get frame number (1ms)
uint32_t hcd_frame_number(uint8_t rhport);
//--------------------------------------------------------------------+
// Port API
//--------------------------------------------------------------------+
// Get the current connect status of roothub port
bool hcd_port_connect_status(uint8_t rhport);
// Reset USB bus on the port
void hcd_port_reset(uint8_t rhport);
// TODO implement later
void hcd_port_reset_end(uint8_t rhport);
// Get port link speed
tusb_speed_t hcd_port_speed_get(uint8_t rhport);
// HCD closes all opened endpoints belong to this device
void hcd_device_close(uint8_t rhport, uint8_t dev_addr);
//--------------------------------------------------------------------+
// Endpoints API
//--------------------------------------------------------------------+
bool hcd_setup_send(uint8_t rhport, uint8_t dev_addr, uint8_t const setup_packet[8]);
bool hcd_edpt_open(uint8_t rhport, uint8_t dev_addr, tusb_desc_endpoint_t const * ep_desc);
bool hcd_edpt_xfer(uint8_t rhport, uint8_t dev_addr, uint8_t ep_addr, uint8_t * buffer, uint16_t buflen);
bool hcd_edpt_clear_stall(uint8_t dev_addr, uint8_t ep_addr);
//--------------------------------------------------------------------+
// USBH implemented API
//--------------------------------------------------------------------+
// Get device tree information of a device
// USB device tree can be complicated and manged by USBH, this help HCD to retrieve
// needed topology info to carry out its work
extern void hcd_devtree_get_info(uint8_t dev_addr, hcd_devtree_info_t* devtree_info);
//------------- Event API -------------//
// Called by HCD to notify stack
extern void hcd_event_handler(hcd_event_t const* event, bool in_isr);
// Helper to send device attach event
extern void hcd_event_device_attach(uint8_t rhport, bool in_isr);
// Helper to send device removal event
extern void hcd_event_device_remove(uint8_t rhport, bool in_isr);
// Helper to send USB transfer event
extern void hcd_event_xfer_complete(uint8_t dev_addr, uint8_t ep_addr, uint32_t xferred_bytes, xfer_result_t result, bool in_isr);
#ifdef __cplusplus
}
#endif
#endif /* _TUSB_HCD_H_ */
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