Add usblib and utils

1 files changed, 176 insertions, 0 deletions

diff --git a/usblib/usbulpi.c b/usblib/usbulpi.c
new file mode 100644
index 0000000..dbbf68a
--- /dev/null
+++ b/usblib/usbulpi.c
@@ -0,0 +1,176 @@
+//*****************************************************************************

+//

+// usbulpi.c - ULPI access functions.

+//

+// Copyright (c) 2013-2014 Texas Instruments Incorporated.  All rights reserved.

+// Software License Agreement

+// 

+// Texas Instruments (TI) is supplying this software for use solely and

+// exclusively on TI's microcontroller products. The software is owned by

+// TI and/or its suppliers, and is protected under applicable copyright

+// laws. You may not combine this software with "viral" open-source

+// software in order to form a larger program.

+// 

+// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.

+// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT

+// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

+// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY

+// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL

+// DAMAGES, FOR ANY REASON WHATSOEVER.

+// 

+// This is part of revision 2.1.0.12573 of the Tiva USB Library.

+//

+//*****************************************************************************

+#include <stdbool.h>

+#include <stdint.h>

+#include "inc/hw_types.h"

+#include "driverlib/usb.h"

+#include "usbulpi.h"

+

+//*****************************************************************************

+//

+// Hardware ULPI registers.

+//

+//*****************************************************************************

+#define ULPI_FCTL               0x04

+#define ULPI_FCTL_SET           0x05

+#define ULPI_FCTL_CLEAR         0x06

+#define ULPI_ICTL               0x07

+#define ULPI_ICTL_SET           0x08

+#define ULPI_ICTL_CLEAR         0x09

+#define ULPI_OTGCTL             0x0A

+#define ULPI_OTGCTL_SET         0x0B

+#define ULPI_OTGCTL_CLEAR       0x0C

+

+//*****************************************************************************

+//

+// The following are defines for the bit fields in the ULPI_FCTL register.

+//

+//*****************************************************************************

+#define ULPI_FCTL_XCVR_M        0x03

+#define ULPI_FCTL_XCVR_HS       0x00

+#define ULPI_FCTL_XCVR_FS       0x01

+#define ULPI_FCTL_XCVR_LS       0x02

+#define ULPI_FCTL_XCVR_FSLS     0x03

+#define ULPI_FCTL_TERMSEL       0x04

+#define ULPI_FCTL_OPMODE_M      0x18

+#define ULPI_FCTL_OPMODE_NORM   0x00

+#define ULPI_FCTL_OPMODE_NODRV  0x08

+#define ULPI_FCTL_OPMODE_NONRZI 0x10

+#define ULPI_FCTL_OPMODE_DISAUTO \

+                                0x18

+#define ULPI_FCTL_OPMODE_RESET  0x20

+#define ULPI_FCTL_OPMODE_SUSPEND \

+                                0x40

+

+//*****************************************************************************

+//

+// The following are defines for the bit fields in the ULPI_ICTL register.

+//

+//*****************************************************************************

+#define ULPI_ICTL_SER6PIN       0x01

+#define ULPI_ICTL_SER3PIN       0x02

+#define ULPI_ICTL_AUTORESUME    0x10

+#define ULPI_ICTL_INDINV        0x20

+#define ULPI_ICTL_INDPASSTHRU   0x40

+#define ULPI_ICTL_PROTDIS       0x80

+

+//*****************************************************************************

+//

+// The following are defines for the bit fields in the ULPI_OTGCTL register.

+//

+//*****************************************************************************

+#define ULPI_OTGCTL_ID_EN       0x01

+#define ULPI_OTGCTL_DPPD_EN     0x02

+#define ULPI_OTGCTL_DMPD_EN     0x04

+#define ULPI_OTGCTL_DISCHRG_VBUS \

+                                0x08

+#define ULPI_OTGCTL_CHRG_VBUS   0x10

+#define ULPI_OTGCTL_VBUSINT_EN  0x20

+#define ULPI_OTGCTL_VBUSEXT_EN  0x40

+#define ULPI_OTGCTL_VBUSEXT_IND 0x80

+

+//*****************************************************************************

+//

+//! Sets the configuration of an external USB Phy.

+//!

+//! \param ui32Base specifies the USB module base address.

+//! \param ui32Config specifies the configuration options for the external Phy.

+//!

+//! This function sets the configuration options for an externally connected

+//! USB Phy that is connected using the ULPI interface.  The \e ui32Config

+//! parameter holds all of the configuration options defined by the

+//! \b UPLI_CFG_ values.  The values are grouped as follows:

+//!

+//! Connection speed, using one of the following:

+//! - \b UPLI_CFG_HS enables high speed operation.

+//! - \b UPLI_CFG_FS enables full speed operation.

+//! - \b UPLI_CFG_HS enables low speed operation.

+//!

+//! Any of the following can be included:

+//! - \b UPLI_CFG_AUTORESUME enable automatic transmission of resume signaling

+//!   from the Phy.

+//! - \b UPLI_CFG_INVVBUSIND inverts the external VBUS indicator if it is

+//!   selected.

+//! - \b UPLI_CFG_PASSTHRUIND passes the external VBUS indicator through

+//!   without using the Phy's VBUS comparator.

+//! - \b ULPI_CFG_EXTVBUSDRV enables an external VBUS drive source.

+//! - \b ULPI_CFG_EXTVBUSIND enables an external signal for VBUS valid.

+//!

+//! \return None.

+//

+//*****************************************************************************

+void

+ULPIConfigSet(uint32_t ui32Base, uint32_t ui32Config)

+{

+    uint8_t ui8Val;

+

+    ui8Val = USBULPIRegRead(ui32Base, ULPI_FCTL);

+    ui8Val &= ~(ULPI_FCTL_XCVR_M);

+    ui8Val = ui8Val | (uint8_t)ui32Config;

+

+    USBULPIRegWrite(ui32Base, ULPI_FCTL, ui8Val);

+

+    ui8Val = USBULPIRegRead(ui32Base, ULPI_ICTL);

+    ui8Val &= ~(ULPI_ICTL_AUTORESUME | ULPI_ICTL_INDINV |

+                ULPI_ICTL_INDPASSTHRU);

+    ui8Val = ui8Val | (uint8_t)((ui32Config >> 8) & 0xff);

+

+    USBULPIRegWrite(ui32Base, ULPI_ICTL, ui8Val);

+

+    ui8Val = USBULPIRegRead(ui32Base, ULPI_OTGCTL);

+    ui8Val &= ~(ULPI_OTGCTL_VBUSINT_EN | ULPI_OTGCTL_VBUSEXT_EN |

+                ULPI_OTGCTL_VBUSEXT_IND);

+    ui8Val = ui8Val | (uint8_t)((ui32Config >> 16) & 0xff);

+

+    USBULPIRegWrite(ui32Base, ULPI_OTGCTL, ui8Val);

+}

+

+//*****************************************************************************

+//

+//! Enables or disables power to the external USB Phy.

+//!

+//! \param ui32Base specifies the USB module base address.

+//! \param bEnable specifies if the Phy is fully powered or in suspend mode.

+//!

+//! This function sets the current power configuration for the external ULPI

+//! connected Phy.  When \e bEnable is \b true the Phy is fully powered and

+//! when \b false the USB Phy is in suspend mode.

+//!

+//! \return None.

+//

+//*****************************************************************************

+void

+ULPIPowerTransceiver(uint32_t ui32Base, bool bEnable)

+{

+    if(bEnable)

+    {

+        USBULPIRegWrite(ui32Base, ULPI_FCTL_CLEAR,

+                        ULPI_FCTL_OPMODE_SUSPEND);

+    }

+    else

+    {

+        USBULPIRegWrite(ui32Base, ULPI_FCTL_SET,

+                        ULPI_FCTL_OPMODE_SUSPEND);

+    }

+}