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-rw-r--r--src/host/hub.h190
1 files changed, 96 insertions, 94 deletions
diff --git a/src/host/hub.h b/src/host/hub.h
index 385efe6b2..3587f0ee3 100644
--- a/src/host/hub.h
+++ b/src/host/hub.h
@@ -24,17 +24,8 @@
* This file is part of the TinyUSB stack.
*/
-/** \ingroup group_class
- * \defgroup ClassDriver_Hub Hub (Host only)
- * \details Like most PC's OS, Hub support is completely hidden from Application. In fact, application cannot determine whether
- * a device is mounted directly via roothub or via a hub's port. All Hub-related procedures are performed and managed
- * by tinyusb stack. Unless you are trying to develop the stack itself, there are nothing else can be used by Application.
- * \note Due to my laziness, only 1-level of Hub is supported. In other way, the stack cannot mount a hub via another hub.
- * @{
- */
-
-#ifndef _TUSB_HUB_H_
-#define _TUSB_HUB_H_
+#ifndef TUSB_HUB_H_
+#define TUSB_HUB_H_
#include "common/tusb_common.h"
@@ -42,63 +33,23 @@
extern "C" {
#endif
-//D1...D0: Logical Power Switching Mode
-//00: Ganged power switching (all ports’power at
-//once)
-//01: Individual port power switching
-//1X: Reserved. Used only on 1.0 compliant hubs
-//that implement no power switching
-//D2: Identifies a Compound Device
-//0: Hub is not part of a compound device.
-//1: Hub is part of a compound device.
-//D4...D3: Over-current Protection Mode
-//00: Global Over-current Protection. The hub
-//reports over-current as a summation of all
-//ports’current draw, without a breakdown of
-//individual port over-current status.
-//01: Individual Port Over-current Protection. The
-//hub reports over-current on a per-port basis.
-//Each port has an over-current status.
-//1X: No Over-current Protection. This option is
-//allowed only for bus-powered hubs that do not
-//implement over-current protection.
-//
-//D6...D5: TT Think TIme
-//00: TT requires at most 8 FS bit times of inter
-//transaction gap on a full-/low-speed
-//downstream bus.
-//01: TT requires at most 16 FS bit times.
-//10: TT requires at most 24 FS bit times.
-//11: TT requires at most 32 FS bit times.
-//D7: Port Indicators Supported
-//0: Port Indicators are not supported on its
-//downstream facing ports and the
-//PORT_INDICATOR request has no effect.
-//1: Port Indicators are supported on its
-//downstream facing ports and the
-//PORT_INDICATOR request controls the
-//indicators. See Section 11.5.3.
-//D15...D8: Reserved
-
-typedef struct TU_ATTR_PACKED{
- uint8_t bLength ; ///< Size of descriptor
- uint8_t bDescriptorType ; ///< Other_speed_Configuration Type
- uint8_t bNbrPorts;
- uint16_t wHubCharacteristics;
- uint8_t bPwrOn2PwrGood;
- uint8_t bHubContrCurrent;
- uint8_t DeviceRemovable; // bitmap each bit for a port (from bit1)
- uint8_t PortPwrCtrlMask; // just for compatibility, should be 0xff
-} descriptor_hub_desc_t;
+//--------------------------------------------------------------------+
+// Configuration
+//--------------------------------------------------------------------+
-TU_VERIFY_STATIC( sizeof(descriptor_hub_desc_t) == 9, "size is not correct");
+#ifndef CFG_TUH_HUB_BUFSIZE
+ #define CFG_TUH_HUB_BUFSIZE 12
+#endif
+//--------------------------------------------------------------------+
+//
+//--------------------------------------------------------------------+
enum {
HUB_REQUEST_GET_STATUS = 0 ,
HUB_REQUEST_CLEAR_FEATURE = 1 ,
-
+ // 2 is reserved
HUB_REQUEST_SET_FEATURE = 3 ,
-
+ // 4-5 are reserved
HUB_REQUEST_GET_DESCRIPTOR = 6 ,
HUB_REQUEST_SET_DESCRIPTOR = 7 ,
HUB_REQUEST_CLEAR_TT_BUFFER = 8 ,
@@ -118,10 +69,10 @@ enum{
HUB_FEATURE_PORT_SUSPEND = 2,
HUB_FEATURE_PORT_OVER_CURRENT = 3,
HUB_FEATURE_PORT_RESET = 4,
-
+ // 5-7 are reserved
HUB_FEATURE_PORT_POWER = 8,
HUB_FEATURE_PORT_LOW_SPEED = 9,
-
+ // 10-15 are reserved
HUB_FEATURE_PORT_CONNECTION_CHANGE = 16,
HUB_FEATURE_PORT_ENABLE_CHANGE = 17,
HUB_FEATURE_PORT_SUSPEND_CHANGE = 18,
@@ -131,6 +82,41 @@ enum{
HUB_FEATURE_PORT_INDICATOR = 22
};
+enum {
+ HUB_CHARS_POWER_GANGED_SWITCHING = 0,
+ HUB_CHARS_POWER_INDIVIDUAL_SWITCHING = 1,
+};
+
+enum {
+ HUB_CHARS_OVER_CURRENT_GLOBAL = 0,
+ HUB_CHARS_OVER_CURRENT_INDIVIDUAL = 1,
+};
+
+typedef struct TU_ATTR_PACKED{
+ uint8_t bLength ; ///< Size of descriptor
+ uint8_t bDescriptorType ; ///< Other_speed_Configuration Type
+ uint8_t bNbrPorts;
+ uint16_t wHubCharacteristics;
+ uint8_t bPwrOn2PwrGood;
+ uint8_t bHubContrCurrent;
+ uint8_t DeviceRemovable; // bitmap each bit for a port (from bit1)
+ uint8_t PortPwrCtrlMask; // just for compatibility, should be 0xff
+} hub_desc_cs_t;
+TU_VERIFY_STATIC(sizeof(hub_desc_cs_t) == 9, "size is not correct");
+TU_VERIFY_STATIC(CFG_TUH_HUB_BUFSIZE >= sizeof(hub_desc_cs_t), "buffer is not big enough");
+
+typedef struct TU_ATTR_PACKED {
+ struct TU_ATTR_PACKED {
+ uint8_t logical_power_switching_mode : 2; // [0..1] gannged or individual power switching
+ uint8_t compound_device : 1; // [2] hub is part of compound device
+ uint8_t over_current_protect_mode : 2; // [3..4] global or individual port over-current protection
+ uint8_t tt_think_time : 2; // [5..6] TT think time
+ uint8_t port_indicator_supported : 1; // [7] port indicator supported
+ };
+ uint8_t rsv1;
+} hub_characteristics_t;
+TU_VERIFY_STATIC(sizeof(hub_characteristics_t) == 2, "size is not correct");
+
// data in response of HUB_REQUEST_GET_STATUS, wIndex = 0 (hub)
typedef struct {
union{
@@ -143,48 +129,56 @@ typedef struct {
uint16_t value;
} status, change;
} hub_status_response_t;
-
TU_VERIFY_STATIC( sizeof(hub_status_response_t) == 4, "size is not correct");
// data in response of HUB_REQUEST_GET_STATUS, wIndex = Port num
typedef struct {
- union {
+ union TU_ATTR_PACKED {
struct TU_ATTR_PACKED {
- uint16_t connection : 1;
- uint16_t port_enable : 1;
- uint16_t suspend : 1;
- uint16_t over_current : 1;
- uint16_t reset : 1;
+ // Bit 0-4 are for change & status
+ uint16_t connection : 1; // [0] 0 = no device, 1 = device connected
+ uint16_t port_enable : 1; // [1] port is enabled
+ uint16_t suspend : 1; // [2]
+ uint16_t over_current : 1; // [3] over-current exists
+ uint16_t reset : 1; // [4] 0 = no reset, 1 = resetting
- uint16_t : 3;
- uint16_t port_power : 1;
- uint16_t low_speed : 1;
- uint16_t high_speed : 1;
- uint16_t port_test_mode : 1;
- uint16_t port_indicator_control : 1;
- uint16_t TU_RESERVED : 3;
+ // From Bit 5 are for status only
+ uint16_t rsv5_7 : 3; // [5..7] reserved
+ uint16_t port_power : 1; // [8] 0 = port is off, 1 = port is on
+ uint16_t low_speed : 1; // [9] low speed device attached
+ uint16_t high_speed : 1; // [10] high speed device attached
+ uint16_t port_test_mode : 1; // [11] port in test mode
+ uint16_t port_indicator_control : 1; // [12] 0: default color, 1: indicator is software controlled
+ uint16_t TU_RESERVED : 3; // [13..15] reserved
};
uint16_t value;
} status, change;
} hub_port_status_response_t;
-
TU_VERIFY_STATIC( sizeof(hub_port_status_response_t) == 4, "size is not correct");
-// Clear feature
-bool hub_port_clear_feature (uint8_t hub_addr, uint8_t hub_port, uint8_t feature,
- tuh_xfer_cb_t complete_cb, uintptr_t user_data);
+//--------------------------------------------------------------------+
+// HUB API
+//--------------------------------------------------------------------+
+
+// Clear port feature
+bool hub_port_clear_feature(uint8_t hub_addr, uint8_t hub_port, uint8_t feature,
+ tuh_xfer_cb_t complete_cb, uintptr_t user_data);
-// Set feature
-bool hub_port_set_feature (uint8_t hub_addr, uint8_t hub_port, uint8_t feature,
- tuh_xfer_cb_t complete_cb, uintptr_t user_data);
+// Set port feature
+bool hub_port_set_feature(uint8_t hub_addr, uint8_t hub_port, uint8_t feature,
+ tuh_xfer_cb_t complete_cb, uintptr_t user_data);
// Get port status
-bool hub_port_get_status (uint8_t hub_addr, uint8_t hub_port, void* resp,
- tuh_xfer_cb_t complete_cb, uintptr_t user_data);
+// If hub_port != 0, resp is ignored. hub_port_get_status_local() can be used to retrieve the status
+bool hub_port_get_status(uint8_t hub_addr, uint8_t hub_port, void *resp,
+ tuh_xfer_cb_t complete_cb, uintptr_t user_data);
+
+// Get port status from local cache. This does not send a request to the device
+bool hub_port_get_status_local(uint8_t hub_addr, uint8_t hub_port, hub_port_status_response_t* resp);
// Get status from Interrupt endpoint
-bool hub_edpt_status_xfer(uint8_t dev_addr);
+bool hub_edpt_status_xfer(uint8_t daddr);
// Reset a port
TU_ATTR_ALWAYS_INLINE static inline
@@ -192,27 +186,35 @@ bool hub_port_reset(uint8_t hub_addr, uint8_t hub_port, tuh_xfer_cb_t complete_c
return hub_port_set_feature(hub_addr, hub_port, HUB_FEATURE_PORT_RESET, complete_cb, user_data);
}
-// Clear Reset Change
+// Clear Port Reset Change
TU_ATTR_ALWAYS_INLINE static inline
bool hub_port_clear_reset_change(uint8_t hub_addr, uint8_t hub_port, tuh_xfer_cb_t complete_cb, uintptr_t user_data) {
return hub_port_clear_feature(hub_addr, hub_port, HUB_FEATURE_PORT_RESET_CHANGE, complete_cb, user_data);
}
+// Get Hub status (port = 0)
+TU_ATTR_ALWAYS_INLINE static inline
+bool hub_get_status(uint8_t hub_addr, void* resp, tuh_xfer_cb_t complete_cb, uintptr_t user_data) {
+ return hub_port_get_status(hub_addr, 0, resp, complete_cb, user_data);
+}
+// Clear Hub feature
+TU_ATTR_ALWAYS_INLINE static inline
+bool hub_clear_feature(uint8_t hub_addr, uint8_t feature, tuh_xfer_cb_t complete_cb, uintptr_t user_data) {
+ return hub_port_clear_feature(hub_addr, 0, feature, complete_cb, user_data);
+}
//--------------------------------------------------------------------+
// Internal Class Driver API
//--------------------------------------------------------------------+
bool hub_init (void);
bool hub_deinit (void);
bool hub_open (uint8_t rhport, uint8_t dev_addr, tusb_desc_interface_t const *itf_desc, uint16_t max_len);
-bool hub_set_config (uint8_t dev_addr, uint8_t itf_num);
-bool hub_xfer_cb (uint8_t dev_addr, uint8_t ep_addr, xfer_result_t event, uint32_t xferred_bytes);
+bool hub_set_config (uint8_t daddr, uint8_t itf_num);
+bool hub_xfer_cb (uint8_t daddr, uint8_t ep_addr, xfer_result_t event, uint32_t xferred_bytes);
void hub_close (uint8_t dev_addr);
#ifdef __cplusplus
}
#endif
-#endif /* _TUSB_HUB_H_ */
-
-/** @} */
+#endif
generated by cgit v1.3.1 (git 2.54.0) at 2026-08-17 08:21:24 +0000