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Complete USB XMEGA interrupt control subsystem code in the core USB driver.

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Automatically load in the USB calibration bytes from the User Signature Row on start-up.

Create internal SRAM variable for the endpoint control and status register table, used by the XMEGA USB controller hardware.
This commit is contained in:
Dean Camera 2011-07-15 08:10:51 +00:00
parent ffa8b430c1
commit f07e766755
7 changed files with 158 additions and 25 deletions
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13
LUFA/Drivers/USB/Core/XMEGA/Device_XMEGA.h
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@ -50,6 +50,7 @@
/* Includes: */
#include "../../../../Common/Common.h"
#include "../USBController.h"
#include "../StdDescriptors.h"
#include "../USBInterrupt.h"
#include "../Endpoint.h"
@ -103,12 +104,12 @@
/** Length of the device's unique internal serial number, in bits, if present on the selected microcontroller
* model.
*/
#define INTERNAL_SERIAL_LENGTH_BITS 112
#define INTERNAL_SERIAL_LENGTH_BITS (8 * (1 + (offsetof(NVM_PROD_SIGNATURES_t, COORDY1) - offsetof(NVM_PROD_SIGNATURES_t, LOTNUM0))))
/** Start address of the internal serial number, in the appropriate address space, if present on the selected microcontroller
* model.
*/
#define INTERNAL_SERIAL_START_ADDRESS 0x08
#define INTERNAL_SERIAL_START_ADDRESS offsetof(NVM_PROD_SIGNATURES_t, LOTNUM0)
/* Function Prototypes: */
/** Sends a Remote Wakeup request to the host. This signals to the host that the device should
@ -139,7 +140,7 @@
static inline uint16_t USB_Device_GetFrameNumber(void) ATTR_ALWAYS_INLINE ATTR_WARN_UNUSED_RESULT;
static inline uint16_t USB_Device_GetFrameNumber(void)
{
return 0; // TODO
return (((uint16_t)USB_EndpointTable.FRAMENUMH << 8) | USB_EndpointTable.FRAMENUML);
}
#if !defined(NO_SOF_EVENTS)
@ -152,7 +153,7 @@
static inline void USB_Device_EnableSOFEvents(void) ATTR_ALWAYS_INLINE;
static inline void USB_Device_EnableSOFEvents(void)
{
// TODO
USB.INTCTRLA |= USB_SOFIE_bm;
}
/** Disables the device mode Start Of Frame events. When disabled, this stops the firing of the
@ -163,7 +164,7 @@
static inline void USB_Device_DisableSOFEvents(void) ATTR_ALWAYS_INLINE;
static inline void USB_Device_DisableSOFEvents(void)
{
// TODO
USB.INTCTRLA &= ~USB_SOFIE_bm;
}
#endif
@ -222,8 +223,6 @@
}
SetGlobalInterruptMask(CurrentGlobalInt);
}
#endif

2
LUFA/Drivers/USB/Core/XMEGA/Endpoint_XMEGA.h
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@ -109,7 +109,7 @@
CheckBytes <<= 1;
}
return (MaskVal << USB_EP_SIZE_gp);
return (MaskVal << USB_EP_BUFSIZE_gp);
}
/* Function Prototypes: */

22
LUFA/Drivers/USB/Core/XMEGA/USBController_XMEGA.c
View File

@ -40,6 +40,8 @@ volatile uint8_t USB_CurrentMode = USB_MODE_None;
volatile uint8_t USB_Options;
#endif
USB_EP_TABLE_t USB_EndpointTable ATTR_ALIGNED(2);
void USB_Init(
#if defined(USB_CAN_BE_BOTH)
const uint8_t Mode
@ -62,6 +64,16 @@ void USB_Init(
USB_IsInitialized = true;
uint_reg_t CurrentGlobalInt = GetGlobalInterruptMask();
GlobalInterruptDisable();
NVM.CMD = NVM_CMD_READ_CALIB_ROW_gc;
USB.CAL0 = pgm_read_byte(offsetof(NVM_PROD_SIGNATURES_t, USBCAL0));
NVM.CMD = NVM_CMD_READ_CALIB_ROW_gc;
USB.CAL1 = pgm_read_byte(offsetof(NVM_PROD_SIGNATURES_t, USBCAL1));
SetGlobalInterruptMask(CurrentGlobalInt);
USB_ResetInterface();
}
@ -79,13 +91,17 @@ void USB_Disable(void)
void USB_ResetInterface(void)
{
if (USB_Options & USB_DEVICE_OPT_LOWSPEED)
CLK.USBCTRL = ((((F_USB / 6000000) - 1) << CLK_USBPSDIV_gp) | CLK_USBSRC_PLL_gc | CLK_USBEN_bm);
CLK.USBCTRL = ((((F_USB / 6000000) - 1) << CLK_USBPSDIV_gp) | CLK_USBSRC_PLL_gc | CLK_USBSEN_bm);
else
CLK.USBCTRL = ((((F_USB / 48000000) - 1) << CLK_USBPSDIV_gp) | CLK_USBSRC_PLL_gc | CLK_USBEN_bm);
CLK.USBCTRL = ((((F_USB / 48000000) - 1) << CLK_USBPSDIV_gp) | CLK_USBSRC_PLL_gc | CLK_USBSEN_bm);
USB_INT_DisableAllInterrupts();
USB_INT_ClearAllInterrupts();
// TODO: Config define for priority
USB.INTCTRLA = (2 << USB_INTLVL_gp);
PMIC.CTRL |= (1 << PMIC_MEDLVLEX_bp);
USB_Controller_Reset();
USB_Init_Device();
}
@ -143,6 +159,8 @@ static void USB_Init_Device(void)
ENDPOINT_DIR_OUT, USB_Device_ControlEndpointSize,
ENDPOINT_BANK_SINGLE);
USB_INT_Enable(USB_INT_BUSEVENTI);
USB_Attach();
}
#endif

7
LUFA/Drivers/USB/Core/XMEGA/USBController_XMEGA.h
View File

@ -55,6 +55,13 @@
#include "../USBTask.h"
#include "../USBInterrupt.h"
/* Private Interface - For use in library only: */
#if !defined(__DOXYGEN__)
/* External Variables: */
extern USB_EP_TABLE_t USB_EndpointTable;
#endif
/* Includes: */
#if defined(USB_CAN_BE_DEVICE) || defined(__DOXYGEN__)
#include "../Device.h"
#include "../Endpoint.h"

61
LUFA/Drivers/USB/Core/XMEGA/USBInterrupt_XMEGA.c
View File

@ -33,13 +33,68 @@
void USB_INT_DisableAllInterrupts(void)
{
// TODO
USB.INTCTRLA = 0;
USB.INTCTRLB = 0;
}
void USB_INT_ClearAllInterrupts(void)
{
// TODO
USB.INTFLAGSACLR = 0xFF;
USB.INTFLAGSBCLR = 0xFF;
}
// TODO: USB ISR
ISR(USB_BUSEVENT_vect)
{
#if !defined(NO_SOF_EVENTS)
if (USB_INT_HasOccurred(USB_INT_SOFI) && USB_INT_IsEnabled(USB_INT_SOFI))
{
USB_INT_Clear(USB_INT_SOFI);
EVENT_USB_Device_StartOfFrame();
}
#endif
if (USB_INT_HasOccurred(USB_INT_BUSEVENTI_Suspend))
{
USB_INT_Clear(USB_INT_BUSEVENTI_Suspend);
#if !defined(NO_LIMITED_CONTROLLER_CONNECT)
USB_DeviceState = DEVICE_STATE_Unattached;
EVENT_USB_Device_Disconnect();
#else
USB_DeviceState = DEVICE_STATE_Suspended;
EVENT_USB_Device_Suspend();
#endif
}
if (USB_INT_HasOccurred(USB_INT_BUSEVENTI_Resume))
{
USB_INT_Clear(USB_INT_BUSEVENTI_Resume);
if (USB_Device_ConfigurationNumber)
USB_DeviceState = DEVICE_STATE_Configured;
else
USB_DeviceState = (USB_Device_IsAddressSet()) ? DEVICE_STATE_Configured : DEVICE_STATE_Powered;
#if !defined(NO_LIMITED_CONTROLLER_CONNECT)
EVENT_USB_Device_Connect();
#else
EVENT_USB_Device_WakeUp();
#endif
}
if (USB_INT_HasOccurred(USB_INT_BUSEVENTI_Reset))
{
USB_INT_Clear(USB_INT_BUSEVENTI_Reset);
USB_DeviceState = DEVICE_STATE_Default;
USB_Device_ConfigurationNumber = 0;
Endpoint_ConfigureEndpoint(ENDPOINT_CONTROLEP, EP_TYPE_CONTROL,
ENDPOINT_DIR_OUT, USB_Device_ControlEndpointSize,
ENDPOINT_BANK_SINGLE);
EVENT_USB_Device_Reset();
}
}

66
LUFA/Drivers/USB/Core/XMEGA/USBInterrupt_XMEGA.h
View File

@ -59,38 +59,92 @@
/* Enums: */
enum USB_Interrupts_t
{
USB_INT_NONE = 0, // TODO
USB_INT_BUSEVENTI = 1,
USB_INT_BUSEVENTI_Suspend = 2,
USB_INT_BUSEVENTI_Resume = 3,
USB_INT_BUSEVENTI_Reset = 4,
USB_INT_SOFI = 5,
};
/* Inline Functions: */
static inline void USB_INT_Enable(const uint8_t Interrupt) ATTR_ALWAYS_INLINE;
static inline void USB_INT_Enable(const uint8_t Interrupt)
{
// TODO
switch (Interrupt)
{
case USB_INT_BUSEVENTI:
USB.INTCTRLA |= USB_BUSEVIE_bm;
return;
case USB_INT_SOFI:
USB.INTCTRLA |= USB_SOFIE_bm;
return;
}
}
static inline void USB_INT_Disable(const uint8_t Interrupt) ATTR_ALWAYS_INLINE;
static inline void USB_INT_Disable(const uint8_t Interrupt)
{
// TODO
switch (Interrupt)
{
case USB_INT_BUSEVENTI:
USB.INTCTRLA &= ~USB_BUSEVIE_bm;
return;
case USB_INT_SOFI:
USB.INTCTRLA &= ~USB_SOFIE_bm;
return;
}
}
static inline void USB_INT_Clear(const uint8_t Interrupt) ATTR_ALWAYS_INLINE;
static inline void USB_INT_Clear(const uint8_t Interrupt)
{
// TODO
switch (Interrupt)
{
case USB_INT_BUSEVENTI_Suspend:
USB.INTFLAGSACLR = USB_SUSPENDIF_bm;
return;
case USB_INT_BUSEVENTI_Resume:
USB.INTFLAGSACLR = USB_RESUMEIF_bm;
return;
case USB_INT_BUSEVENTI_Reset:
USB.INTFLAGSACLR = USB_RSTIF_bm;
return;
case USB_INT_SOFI:
USB.INTFLAGSACLR = USB_SOFIF_bm;
return;
}
}
static inline bool USB_INT_IsEnabled(const uint8_t Interrupt) ATTR_ALWAYS_INLINE ATTR_WARN_UNUSED_RESULT;
static inline bool USB_INT_IsEnabled(const uint8_t Interrupt)
{
return false; // TODO
switch (Interrupt)
{
case USB_INT_BUSEVENTI:
return (USB.INTCTRLA & USB_BUSEVIE_bm);
case USB_INT_SOFI:
return (USB.INTCTRLA & USB_SOFIE_bm);
}
return false;
}
static inline bool USB_INT_HasOccurred(const uint8_t Interrupt) ATTR_ALWAYS_INLINE ATTR_WARN_UNUSED_RESULT;
static inline bool USB_INT_HasOccurred(const uint8_t Interrupt)
{
return false; // TODO
switch (Interrupt)
{
case USB_INT_BUSEVENTI_Suspend:
return (USB.INTFLAGSACLR & USB_SUSPENDIF_bm);
case USB_INT_BUSEVENTI_Resume:
return (USB.INTFLAGSACLR & USB_RESUMEIF_bm);
case USB_INT_BUSEVENTI_Reset:
return (USB.INTFLAGSACLR & USB_RSTIF_bm);
case USB_INT_SOFI:
return (USB.INTFLAGSACLR & USB_SOFIF_bm);
}
return false;
}
/* Includes: */