mirror of
https://github.com/gdsports/USBHost_t36
synced 2024-11-21 08:35:03 -05:00
Do only 1 control transfer at a time to hubs, clear other change status
This commit is contained in:
PaulStoffregen
parent
81f30ecd5f
commit
ba0e6f495b
19
USBHost.h
19
USBHost.h
@ -307,6 +307,7 @@ class USBHub : public USBDriver {
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public:
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USBHub();
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enum { MAXPORTS = 7 };
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typedef uint8_t portbitmask_t;
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enum {
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PORT_OFF = 0,
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PORT_DISCONNECT = 1,
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@ -324,10 +325,17 @@ protected:
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virtual void control(const Transfer_t *transfer);
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virtual void timer_event(USBDriverTimer *whichTimer);
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virtual void disconnect();
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bool can_send_control_now();
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void send_poweron(uint32_t port);
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void send_getstatus(uint32_t port);
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void send_clearstatus(uint32_t port);
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void send_clearstatus_connect(uint32_t port);
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void send_clearstatus_enable(uint32_t port);
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void send_clearstatus_suspend(uint32_t port);
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void send_clearstatus_overcurrent(uint32_t port);
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void send_clearstatus_reset(uint32_t port);
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void send_setreset(uint32_t port);
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static void callback(const Transfer_t *transfer);
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void status_change(const Transfer_t *transfer);
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void new_port_status(uint32_t port, uint32_t status);
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@ -346,6 +354,15 @@ protected:
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uint8_t numports;
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uint8_t characteristics;
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uint8_t powertime;
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uint8_t sending_control_transfer;
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portbitmask_t send_pending_poweron;
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portbitmask_t send_pending_getstatus;
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portbitmask_t send_pending_clearstatus_connect;
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portbitmask_t send_pending_clearstatus_enable;
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portbitmask_t send_pending_clearstatus_suspend;
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portbitmask_t send_pending_clearstatus_overcurrent;
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portbitmask_t send_pending_clearstatus_reset;
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portbitmask_t send_pending_setreset;
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Pipe_t *changepipe;
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uint32_t changebits;
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uint8_t portstate[MAXPORTS];
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136
hub.cpp
136
hub.cpp
@ -84,6 +84,7 @@ bool USBHub::claim(Device_t *dev, int type, const uint8_t *descriptors, uint32_t
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numports = 0; // unknown until hub descriptor is read
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changepipe = NULL;
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changebits = 0;
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sending_control_transfer = 0;
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memset(portstate, 0, sizeof(portstate));
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mk_setup(setup[0], 0xA0, 6, 0x2900, 0, sizeof(hub_desc));
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@ -93,36 +94,115 @@ bool USBHub::claim(Device_t *dev, int type, const uint8_t *descriptors, uint32_t
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}
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bool USBHub::can_send_control_now()
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{
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if (sending_control_transfer) return false;
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sending_control_transfer = 1;
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return true;
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}
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void USBHub::send_poweron(uint32_t port)
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{
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if (port == 0 || port > numports) return;
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mk_setup(setup[port], 0x23, 3, 8, port, 0);
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queue_Control_Transfer(device, &setup[port], NULL, this);
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if (can_send_control_now()) {
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mk_setup(setup[port], 0x23, 3, 8, port, 0);
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queue_Control_Transfer(device, &setup[port], NULL, this);
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send_pending_poweron &= ~(1 << port);
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} else {
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send_pending_poweron |= (1 << port);
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}
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}
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void USBHub::send_getstatus(uint32_t port)
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{
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if (port > numports) return;
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if (can_send_control_now()) {
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println("getstatus, port = ", port);
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mk_setup(setup[port], ((port > 0) ? 0xA3 : 0xA0), 0, 0, port, 4);
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queue_Control_Transfer(device, &setup[port], &statusbits[port], this);
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mk_setup(setup[port], ((port > 0) ? 0xA3 : 0xA0), 0, 0, port, 4);
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queue_Control_Transfer(device, &setup[port], &statusbits[port], this);
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send_pending_getstatus &= ~(1 << port);
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} else {
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send_pending_getstatus |= (1 << port);
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}
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}
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void USBHub::send_clearstatus(uint32_t port)
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void USBHub::send_clearstatus_connect(uint32_t port)
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{
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if (port > numports) return;
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mk_setup(setup[port], ((port > 0) ? 0x23 : 0x20), 1, 0x10, port, 0);
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queue_Control_Transfer(device, &setup[port], NULL, this);
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if (port == 0 || port > numports) return;
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if (can_send_control_now()) {
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mk_setup(setup[port], 0x23, 1, 16, port, 0); // 16=C_PORT_CONNECTION
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queue_Control_Transfer(device, &setup[port], NULL, this);
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send_pending_clearstatus_connect &= ~(1 << port);
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} else {
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send_pending_clearstatus_connect |= (1 << port);
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}
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}
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void USBHub::send_clearstatus_enable(uint32_t port)
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{
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if (port == 0 || port > numports) return;
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if (can_send_control_now()) {
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mk_setup(setup[port], 0x23, 1, 17, port, 0); // 17=C_PORT_ENABLE
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queue_Control_Transfer(device, &setup[port], NULL, this);
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send_pending_clearstatus_enable &= ~(1 << port);
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} else {
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send_pending_clearstatus_enable |= (1 << port);
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}
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}
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void USBHub::send_clearstatus_suspend(uint32_t port)
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{
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if (port == 0 || port > numports) return;
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if (can_send_control_now()) {
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mk_setup(setup[port], 0x23, 1, 18, port, 0); // 18=C_PORT_SUSPEND
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queue_Control_Transfer(device, &setup[port], NULL, this);
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send_pending_clearstatus_suspend &= ~(1 << port);
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} else {
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send_pending_clearstatus_suspend |= (1 << port);
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}
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}
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void USBHub::send_clearstatus_overcurrent(uint32_t port)
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{
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if (port == 0 || port > numports) return;
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if (can_send_control_now()) {
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mk_setup(setup[port], 0x23, 1, 19, port, 0); // 19=C_PORT_OVER_CURRENT
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queue_Control_Transfer(device, &setup[port], NULL, this);
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send_pending_clearstatus_overcurrent &= ~(1 << port);
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} else {
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send_pending_clearstatus_overcurrent |= (1 << port);
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}
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}
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void USBHub::send_clearstatus_reset(uint32_t port)
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{
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if (port == 0 || port > numports) return;
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if (can_send_control_now()) {
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mk_setup(setup[port], 0x23, 1, 20, port, 0); // 20=C_PORT_RESET
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queue_Control_Transfer(device, &setup[port], NULL, this);
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send_pending_clearstatus_reset &= ~(1 << port);
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} else {
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send_pending_clearstatus_reset |= (1 << port);
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}
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}
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void USBHub::send_setreset(uint32_t port)
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{
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if (port == 0 || port > numports) return;
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println("send_setreset");
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mk_setup(setup[port], 0x23, 3, 4, port, 0); // set feature PORT_RESET
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queue_Control_Transfer(device, &setup[port], NULL, this);
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if (can_send_control_now()) {
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mk_setup(setup[port], 0x23, 3, 4, port, 0); // set feature PORT_RESET
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queue_Control_Transfer(device, &setup[port], NULL, this);
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send_pending_setreset &= ~(1 << port);
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} else {
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send_pending_setreset |= (1 << port);
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}
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}
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static uint32_t lowestbit(uint32_t bitmask)
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{
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return 31 - __builtin_clz(bitmask);
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}
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void USBHub::control(const Transfer_t *transfer)
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{
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@ -157,7 +237,6 @@ void USBHub::control(const Transfer_t *transfer)
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case 0x000000A0: // get hub status
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println("New Hub Status");
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send_clearstatus(0);
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break;
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case 0x000000A3: // get port status
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println("New Port Status");
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@ -168,7 +247,7 @@ void USBHub::control(const Transfer_t *transfer)
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}
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//if (changebits & (1 << port)) {
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//changebits &= ~(1 << port);
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send_clearstatus(port);
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//send_clearstatus(port);
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//}
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break;
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case 0x00100120: // clear hub status
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@ -180,6 +259,29 @@ void USBHub::control(const Transfer_t *transfer)
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default:
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println("unhandled setup, message = ", mesg, HEX);
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}
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// After we've completed processing for this control
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// transfer, check if any more need to be sent. These
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// allow only a single control transfer to occur at once
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// which isn't fast, but requires only 3 Transfer_t and
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// allows reusing the setup and other buffers
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sending_control_transfer = 0;
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if (send_pending_poweron) {
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send_poweron(lowestbit(send_pending_poweron));
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} else if (send_pending_clearstatus_connect) {
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send_clearstatus_connect(lowestbit(send_pending_clearstatus_connect));
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} else if (send_pending_clearstatus_enable) {
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send_clearstatus_enable(lowestbit(send_pending_clearstatus_enable));
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} else if (send_pending_clearstatus_suspend) {
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send_clearstatus_suspend(lowestbit(send_pending_clearstatus_suspend));
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} else if (send_pending_clearstatus_overcurrent) {
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send_clearstatus_overcurrent(lowestbit(send_pending_clearstatus_overcurrent));
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} else if (send_pending_clearstatus_reset) {
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send_clearstatus_reset(lowestbit(send_pending_clearstatus_reset));
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} else if (send_pending_getstatus) {
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send_getstatus(lowestbit(send_pending_getstatus));
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} else if (send_pending_setreset) {
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send_setreset(lowestbit(send_pending_setreset));
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}
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}
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void USBHub::callback(const Transfer_t *transfer)
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@ -211,7 +313,7 @@ void USBHub::new_port_status(uint32_t port, uint32_t status)
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// status bits, USB 2.0: 11.24.2.7.1 page 427
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if (status & 0x0001) println(" Device is present: ");
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if (status & 0x0002) {
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println(" Enabled, speed = ");
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print(" Enabled, speed = ");
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if (status & 0x0200) {
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print("1.5");
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} else {
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@ -237,6 +339,7 @@ void USBHub::new_port_status(uint32_t port, uint32_t status)
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if (status & 0x0001) { // connected
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state = PORT_DEBOUNCE1;
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start_debounce_timer(port);
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send_clearstatus_connect(port);
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}
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break;
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case PORT_DEBOUNCE1:
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@ -258,6 +361,13 @@ void USBHub::new_port_status(uint32_t port, uint32_t status)
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}
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break;
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case PORT_RESET:
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if (status & 0x0002) {
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// port is now enabled
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//while (1) ;
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//send_clearstatus_enable(port);
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//send_clearstatus_connect(port);
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send_clearstatus_reset(port);
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}
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case PORT_RECOVERY:
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case PORT_ACTIVE:
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break;
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