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diff --git a/lib/chibios-contrib/os/common/ext/TivaWare/inc/hw_ssi.h b/lib/chibios-contrib/os/common/ext/TivaWare/inc/hw_ssi.h
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@@ -0,0 +1,237 @@
+//*****************************************************************************
+//
+// hw_ssi.h - Macros used when accessing the SSI hardware.
+//
+// Copyright (c) 2005-2016 Texas Instruments Incorporated.  All rights reserved.
+// Software License Agreement
+// 
+//   Redistribution and use in source and binary forms, with or without
+//   modification, are permitted provided that the following conditions
+//   are met:
+// 
+//   Redistributions of source code must retain the above copyright
+//   notice, this list of conditions and the following disclaimer.
+// 
+//   Redistributions in binary form must reproduce the above copyright
+//   notice, this list of conditions and the following disclaimer in the
+//   documentation and/or other materials provided with the  
+//   distribution.
+// 
+//   Neither the name of Texas Instruments Incorporated nor the names of
+//   its contributors may be used to endorse or promote products derived
+//   from this software without specific prior written permission.
+// 
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+// 
+// This is part of revision 2.1.3.156 of the Tiva Firmware Development Package.
+//
+//*****************************************************************************
+
+#ifndef __HW_SSI_H__
+#define __HW_SSI_H__
+
+//*****************************************************************************
+//
+// The following are defines for the SSI register offsets.
+//
+//*****************************************************************************
+#define SSI_O_CR0               0x00000000  // SSI Control 0
+#define SSI_O_CR1               0x00000004  // SSI Control 1
+#define SSI_O_DR                0x00000008  // SSI Data
+#define SSI_O_SR                0x0000000C  // SSI Status
+#define SSI_O_CPSR              0x00000010  // SSI Clock Prescale
+#define SSI_O_IM                0x00000014  // SSI Interrupt Mask
+#define SSI_O_RIS               0x00000018  // SSI Raw Interrupt Status
+#define SSI_O_MIS               0x0000001C  // SSI Masked Interrupt Status
+#define SSI_O_ICR               0x00000020  // SSI Interrupt Clear
+#define SSI_O_DMACTL            0x00000024  // SSI DMA Control
+#define SSI_O_PP                0x00000FC0  // SSI Peripheral Properties
+#define SSI_O_CC                0x00000FC8  // SSI Clock Configuration
+
+//*****************************************************************************
+//
+// The following are defines for the bit fields in the SSI_O_CR0 register.
+//
+//*****************************************************************************
+#define SSI_CR0_SCR_M           0x0000FF00  // SSI Serial Clock Rate
+#define SSI_CR0_SPH             0x00000080  // SSI Serial Clock Phase
+#define SSI_CR0_SPO             0x00000040  // SSI Serial Clock Polarity
+#define SSI_CR0_FRF_M           0x00000030  // SSI Frame Format Select
+#define SSI_CR0_FRF_MOTO        0x00000000  // Freescale SPI Frame Format
+#define SSI_CR0_FRF_TI          0x00000010  // Synchronous Serial Frame Format
+#define SSI_CR0_FRF_NMW         0x00000020  // MICROWIRE Frame Format
+#define SSI_CR0_DSS_M           0x0000000F  // SSI Data Size Select
+#define SSI_CR0_DSS_4           0x00000003  // 4-bit data
+#define SSI_CR0_DSS_5           0x00000004  // 5-bit data
+#define SSI_CR0_DSS_6           0x00000005  // 6-bit data
+#define SSI_CR0_DSS_7           0x00000006  // 7-bit data
+#define SSI_CR0_DSS_8           0x00000007  // 8-bit data
+#define SSI_CR0_DSS_9           0x00000008  // 9-bit data
+#define SSI_CR0_DSS_10          0x00000009  // 10-bit data
+#define SSI_CR0_DSS_11          0x0000000A  // 11-bit data
+#define SSI_CR0_DSS_12          0x0000000B  // 12-bit data
+#define SSI_CR0_DSS_13          0x0000000C  // 13-bit data
+#define SSI_CR0_DSS_14          0x0000000D  // 14-bit data
+#define SSI_CR0_DSS_15          0x0000000E  // 15-bit data
+#define SSI_CR0_DSS_16          0x0000000F  // 16-bit data
+#define SSI_CR0_SCR_S           8
+
+//*****************************************************************************
+//
+// The following are defines for the bit fields in the SSI_O_CR1 register.
+//
+//*****************************************************************************
+#define SSI_CR1_EOM             0x00000800  // Stop Frame (End of Message)
+#define SSI_CR1_FSSHLDFRM       0x00000400  // FSS Hold Frame
+#define SSI_CR1_HSCLKEN         0x00000200  // High Speed Clock Enable
+#define SSI_CR1_DIR             0x00000100  // SSI Direction of Operation
+#define SSI_CR1_MODE_M          0x000000C0  // SSI Mode
+#define SSI_CR1_MODE_LEGACY     0x00000000  // Legacy SSI mode
+#define SSI_CR1_MODE_BI         0x00000040  // Bi-SSI mode
+#define SSI_CR1_MODE_QUAD       0x00000080  // Quad-SSI Mode
+#define SSI_CR1_MODE_ADVANCED   0x000000C0  // Advanced SSI Mode with 8-bit
+                                            // packet size
+#define SSI_CR1_EOT             0x00000010  // End of Transmission
+#define SSI_CR1_MS              0x00000004  // SSI Master/Slave Select
+#define SSI_CR1_SSE             0x00000002  // SSI Synchronous Serial Port
+                                            // Enable
+#define SSI_CR1_LBM             0x00000001  // SSI Loopback Mode
+
+//*****************************************************************************
+//
+// The following are defines for the bit fields in the SSI_O_DR register.
+//
+//*****************************************************************************
+#define SSI_DR_DATA_M           0x0000FFFF  // SSI Receive/Transmit Data
+#define SSI_DR_DATA_S           0
+
+//*****************************************************************************
+//
+// The following are defines for the bit fields in the SSI_O_SR register.
+//
+//*****************************************************************************
+#define SSI_SR_BSY              0x00000010  // SSI Busy Bit
+#define SSI_SR_RFF              0x00000008  // SSI Receive FIFO Full
+#define SSI_SR_RNE              0x00000004  // SSI Receive FIFO Not Empty
+#define SSI_SR_TNF              0x00000002  // SSI Transmit FIFO Not Full
+#define SSI_SR_TFE              0x00000001  // SSI Transmit FIFO Empty
+
+//*****************************************************************************
+//
+// The following are defines for the bit fields in the SSI_O_CPSR register.
+//
+//*****************************************************************************
+#define SSI_CPSR_CPSDVSR_M      0x000000FF  // SSI Clock Prescale Divisor
+#define SSI_CPSR_CPSDVSR_S      0
+
+//*****************************************************************************
+//
+// The following are defines for the bit fields in the SSI_O_IM register.
+//
+//*****************************************************************************
+#define SSI_IM_EOTIM            0x00000040  // End of Transmit Interrupt Mask
+#define SSI_IM_DMATXIM          0x00000020  // SSI Transmit DMA Interrupt Mask
+#define SSI_IM_DMARXIM          0x00000010  // SSI Receive DMA Interrupt Mask
+#define SSI_IM_TXIM             0x00000008  // SSI Transmit FIFO Interrupt Mask
+#define SSI_IM_RXIM             0x00000004  // SSI Receive FIFO Interrupt Mask
+#define SSI_IM_RTIM             0x00000002  // SSI Receive Time-Out Interrupt
+                                            // Mask
+#define SSI_IM_RORIM            0x00000001  // SSI Receive Overrun Interrupt
+                                            // Mask
+
+//*****************************************************************************
+//
+// The following are defines for the bit fields in the SSI_O_RIS register.
+//
+//*****************************************************************************
+#define SSI_RIS_EOTRIS          0x00000040  // End of Transmit Raw Interrupt
+                                            // Status
+#define SSI_RIS_DMATXRIS        0x00000020  // SSI Transmit DMA Raw Interrupt
+                                            // Status
+#define SSI_RIS_DMARXRIS        0x00000010  // SSI Receive DMA Raw Interrupt
+                                            // Status
+#define SSI_RIS_TXRIS           0x00000008  // SSI Transmit FIFO Raw Interrupt
+                                            // Status
+#define SSI_RIS_RXRIS           0x00000004  // SSI Receive FIFO Raw Interrupt
+                                            // Status
+#define SSI_RIS_RTRIS           0x00000002  // SSI Receive Time-Out Raw
+                                            // Interrupt Status
+#define SSI_RIS_RORRIS          0x00000001  // SSI Receive Overrun Raw
+                                            // Interrupt Status
+
+//*****************************************************************************
+//
+// The following are defines for the bit fields in the SSI_O_MIS register.
+//
+//*****************************************************************************
+#define SSI_MIS_EOTMIS          0x00000040  // End of Transmit Masked Interrupt
+                                            // Status
+#define SSI_MIS_DMATXMIS        0x00000020  // SSI Transmit DMA Masked
+                                            // Interrupt Status
+#define SSI_MIS_DMARXMIS        0x00000010  // SSI Receive DMA Masked Interrupt
+                                            // Status
+#define SSI_MIS_TXMIS           0x00000008  // SSI Transmit FIFO Masked
+                                            // Interrupt Status
+#define SSI_MIS_RXMIS           0x00000004  // SSI Receive FIFO Masked
+                                            // Interrupt Status
+#define SSI_MIS_RTMIS           0x00000002  // SSI Receive Time-Out Masked
+                                            // Interrupt Status
+#define SSI_MIS_RORMIS          0x00000001  // SSI Receive Overrun Masked
+                                            // Interrupt Status
+
+//*****************************************************************************
+//
+// The following are defines for the bit fields in the SSI_O_ICR register.
+//
+//*****************************************************************************
+#define SSI_ICR_EOTIC           0x00000040  // End of Transmit Interrupt Clear
+#define SSI_ICR_DMATXIC         0x00000020  // SSI Transmit DMA Interrupt Clear
+#define SSI_ICR_DMARXIC         0x00000010  // SSI Receive DMA Interrupt Clear
+#define SSI_ICR_RTIC            0x00000002  // SSI Receive Time-Out Interrupt
+                                            // Clear
+#define SSI_ICR_RORIC           0x00000001  // SSI Receive Overrun Interrupt
+                                            // Clear
+
+//*****************************************************************************
+//
+// The following are defines for the bit fields in the SSI_O_DMACTL register.
+//
+//*****************************************************************************
+#define SSI_DMACTL_TXDMAE       0x00000002  // Transmit DMA Enable
+#define SSI_DMACTL_RXDMAE       0x00000001  // Receive DMA Enable
+
+//*****************************************************************************
+//
+// The following are defines for the bit fields in the SSI_O_PP register.
+//
+//*****************************************************************************
+#define SSI_PP_FSSHLDFRM        0x00000008  // FSS Hold Frame Capability
+#define SSI_PP_MODE_M           0x00000006  // Mode of Operation
+#define SSI_PP_MODE_LEGACY      0x00000000  // Legacy SSI mode
+#define SSI_PP_MODE_ADVBI       0x00000002  // Legacy mode, Advanced SSI mode
+                                            // and Bi-SSI mode enabled
+#define SSI_PP_MODE_ADVBIQUAD   0x00000004  // Legacy mode, Advanced mode,
+                                            // Bi-SSI and Quad-SSI mode enabled
+#define SSI_PP_HSCLK            0x00000001  // High Speed Capability
+
+//*****************************************************************************
+//
+// The following are defines for the bit fields in the SSI_O_CC register.
+//
+//*****************************************************************************
+#define SSI_CC_CS_M             0x0000000F  // SSI Baud Clock Source
+#define SSI_CC_CS_SYSPLL        0x00000000  // System clock (based on clock
+                                            // source and divisor factor)
+#define SSI_CC_CS_PIOSC         0x00000005  // PIOSC
+
+#endif // __HW_SSI_H__