---
drivers/media/dvb/frontends/drx_dap_fasi.c | 670 ++++++++++++++++++++++++++++
1 files changed, 670 insertions(+), 0 deletions(-)
create mode 100644 drivers/media/dvb/frontends/drx_dap_fasi.c
diff --git a/drivers/media/dvb/frontends/drx_dap_fasi.c b/drivers/media/dvb/frontends/drx_dap_fasi.c
new file mode 100644
index 0000000..f34641d
--- /dev/null
+++ b/drivers/media/dvb/frontends/drx_dap_fasi.c
@@ -0,0 +1,670 @@
+/*
+ Copyright (c), 2004-2005,2007-2010 Trident Microsystems, Inc.
+ All rights reserved.
+
+ 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 Trident Microsystems nor Hauppauge Computer Works
+ 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 HOLDER 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.
+*/
+
+/*******************************************************************************
+* FILENAME: $Id: drx_dap_fasi.c,v 1.7 2009/12/28 14:36:21 carlo Exp $
+*
+* DESCRIPTION:
+* Part of DRX driver.
+* Data access protocol: Fast Access Sequential Interface (fasi)
+* Fast access, because of short addressing format (16 instead of 32 bits addr)
+* Sequential, because of I2C.
+* These functions know how the chip's memory and registers are to be accessed,
+* but nothing more.
+*
+* These functions should not need adapting to a new platform.
+*
+* USAGE:
+* -
+*
+* NOTES:
+*
+*
+*******************************************************************************/
+
+#include "drx_dap_fasi.h"
+#include "bsp_host.h" /* for DRXBSP_HST_Memcpy() */
+
+/*============================================================================*/
+
+/* Function prototypes */
+static DRXStatus_t DRXDAP_FASI_WriteBlock (
+ pI2CDeviceAddr_t devAddr, /* address of I2C device */
+ DRXaddr_t addr, /* address of register/memory */
+ u16_t datasize, /* size of data */
+ pu8_t data, /* data to send */
+ DRXflags_t flags); /* special device flags */
+
+static DRXStatus_t DRXDAP_FASI_ReadBlock (
+ pI2CDeviceAddr_t devAddr, /* address of I2C device */
+ DRXaddr_t addr, /* address of register/memory */
+ u16_t datasize, /* size of data */
+ pu8_t data, /* data to send */
+ DRXflags_t flags); /* special device flags */
+
+static DRXStatus_t DRXDAP_FASI_WriteReg8 (
+ pI2CDeviceAddr_t devAddr, /* address of I2C device */
+ DRXaddr_t addr, /* address of register */
+ u8_t data, /* data to write */
+ DRXflags_t flags); /* special device flags */
+
+static DRXStatus_t DRXDAP_FASI_ReadReg8 (
+ pI2CDeviceAddr_t devAddr, /* address of I2C device */
+ DRXaddr_t addr, /* address of register */
+ pu8_t data, /* buffer to receive data */
+ DRXflags_t flags); /* special device flags */
+
+static DRXStatus_t DRXDAP_FASI_ReadModifyWriteReg8 (
+ pI2CDeviceAddr_t devAddr, /* address of I2C device */
+ DRXaddr_t waddr, /* address of register */
+ DRXaddr_t raddr, /* address to read back from */
+ u8_t datain, /* data to send */
+ pu8_t dataout); /* data to receive back */
+
+static DRXStatus_t DRXDAP_FASI_WriteReg16 (
+ pI2CDeviceAddr_t devAddr, /* address of I2C device */
+ DRXaddr_t addr, /* address of register */
+ u16_t data, /* data to write */
+ DRXflags_t flags); /* special device flags */
+
+static DRXStatus_t DRXDAP_FASI_ReadReg16 (
+ pI2CDeviceAddr_t devAddr, /* address of I2C device */
+ DRXaddr_t addr, /* address of register */
+ pu16_t data, /* buffer to receive data */
+ DRXflags_t flags); /* special device flags */
+
+static DRXStatus_t DRXDAP_FASI_ReadModifyWriteReg16 (
+ pI2CDeviceAddr_t devAddr, /* address of I2C device */
+ DRXaddr_t waddr, /* address of register */
+ DRXaddr_t raddr, /* address to read back from */
+ u16_t datain, /* data to send */
+ pu16_t dataout); /* data to receive back */
+
+static DRXStatus_t DRXDAP_FASI_WriteReg32 (
+ pI2CDeviceAddr_t devAddr, /* address of I2C device */
+ DRXaddr_t addr, /* address of register */
+ u32_t data, /* data to write */
+ DRXflags_t flags); /* special device flags */
+
+static DRXStatus_t DRXDAP_FASI_ReadReg32 (
+ pI2CDeviceAddr_t devAddr, /* address of I2C device */
+ DRXaddr_t addr, /* address of register */
+ pu32_t data, /* buffer to receive data */
+ DRXflags_t flags); /* special device flags */
+
+static DRXStatus_t DRXDAP_FASI_ReadModifyWriteReg32 (
+ pI2CDeviceAddr_t devAddr, /* address of I2C device */
+ DRXaddr_t waddr, /* address of register */
+ DRXaddr_t raddr, /* address to read back from */
+ u32_t datain, /* data to send */
+ pu32_t dataout); /* data to receive back */
+
+/* The version structure of this protocol implementation */
+char drxDapFASIModuleName[] = "FASI Data Access Protocol";
+char drxDapFASIVersionText[] = "";
+
+DRXVersion_t drxDapFASIVersion =
+{
+ DRX_MODULE_DAP, /**< type identifier of the module */
+ drxDapFASIModuleName, /**< name or description of module */
+
+ 0, /**< major version number */
+ 0, /**< minor version number */
+ 0, /**< patch version number */
+ drxDapFASIVersionText /**< version as text string */
+};
+
+/* The structure containing the protocol interface */
+DRXAccessFunc_t drxDapFASIFunct_g =
+{
+ &drxDapFASIVersion,
+ DRXDAP_FASI_WriteBlock, /* Supported */
+ DRXDAP_FASI_ReadBlock, /* Supported */
+ DRXDAP_FASI_WriteReg8, /* Not supported */
+ DRXDAP_FASI_ReadReg8, /* Not supported */
+ DRXDAP_FASI_ReadModifyWriteReg8, /* Not supported */
+ DRXDAP_FASI_WriteReg16, /* Supported */
+ DRXDAP_FASI_ReadReg16, /* Supported */
+ DRXDAP_FASI_ReadModifyWriteReg16, /* Supported */
+ DRXDAP_FASI_WriteReg32, /* Supported */
+ DRXDAP_FASI_ReadReg32, /* Supported */
+ DRXDAP_FASI_ReadModifyWriteReg32 /* Not supported */
+};
+
+/*============================================================================*/
+
+/* Functions not supported by protocol*/
+
+static DRXStatus_t DRXDAP_FASI_WriteReg8 (
+ pI2CDeviceAddr_t devAddr, /* address of I2C device */
+ DRXaddr_t addr, /* address of register */
+ u8_t data, /* data to write */
+ DRXflags_t flags) /* special device flags */
+{
+ return DRX_STS_ERROR;
+}
+
+static DRXStatus_t DRXDAP_FASI_ReadReg8 (
+ pI2CDeviceAddr_t devAddr, /* address of I2C device */
+ DRXaddr_t addr, /* address of register */
+ pu8_t data, /* buffer to receive data */
+ DRXflags_t flags) /* special device flags */
+{
+ return DRX_STS_ERROR;
+}
+
+static DRXStatus_t DRXDAP_FASI_ReadModifyWriteReg8 (
+ pI2CDeviceAddr_t devAddr, /* address of I2C device */
+ DRXaddr_t waddr, /* address of register */
+ DRXaddr_t raddr, /* address to read back from */
+ u8_t datain, /* data to send */
+ pu8_t dataout) /* data to receive back */
+{
+ return DRX_STS_ERROR;
+}
+
+static DRXStatus_t DRXDAP_FASI_ReadModifyWriteReg32 (
+ pI2CDeviceAddr_t devAddr, /* address of I2C device */
+ DRXaddr_t waddr, /* address of register */
+ DRXaddr_t raddr, /* address to read back from */
+ u32_t datain, /* data to send */
+ pu32_t dataout) /* data to receive back */
+{
+ return DRX_STS_ERROR;
+}
+
+/*============================================================================*/
+
+/******************************
+*
+* DRXStatus_t DRXDAP_FASI_ReadBlock (
+* pI2CDeviceAddr_t devAddr, -- address of I2C device
+* DRXaddr_t addr, -- address of chip register/memory
+* u16_t datasize, -- number of bytes to read
+* pu8_t data, -- data to receive
+* DRXflags_t flags) -- special device flags
+*
+* Read block data from chip address. Because the chip is word oriented,
+* the number of bytes to read must be even.
+*
+* Make sure that the buffer to receive the data is large enough.
+*
+* Although this function expects an even number of bytes, it is still byte
+* oriented, and the data read back is NOT translated to the endianness of
+* the target platform.
+*
+* Output:
+* - DRX_STS_OK if reading was successful
+* in that case: data read is in *data.
+* - DRX_STS_ERROR if anything went wrong
+*
+******************************/
+
+static DRXStatus_t DRXDAP_FASI_ReadBlock (pI2CDeviceAddr_t devAddr,
+ DRXaddr_t addr,
+ u16_t datasize,
+ pu8_t data,
+ DRXflags_t flags)
+{
+ u8_t buf[4];
+ u16_t bufx;
+ DRXStatus_t rc;
+ u16_t overheadSize = 0;
+
+ /* Check parameters ********************************************************/
+ if (devAddr == NULL)
+ {
+ return DRX_STS_INVALID_ARG;
+ }
+
+ overheadSize = (IS_I2C_10BIT (devAddr->i2cAddr) ? 2 : 1) +
+ (DRXDAP_FASI_LONG_FORMAT(addr) ? 4 : 2);
+
+ if ((DRXDAP_FASI_OFFSET_TOO_LARGE(addr)) ||
+ ((!(DRXDAPFASI_LONG_ADDR_ALLOWED)) &&
+ DRXDAP_FASI_LONG_FORMAT(addr)) ||
+ (overheadSize > (DRXDAP_MAX_WCHUNKSIZE)) ||
+ ((datasize!=0) && (data==NULL)) ||
+ ((datasize & 1)==1))
+ {
+ return DRX_STS_INVALID_ARG;
+ }
+
+ /* ReadModifyWrite & mode flag bits are not allowed */
+ flags &= (~DRXDAP_FASI_RMW & ~DRXDAP_FASI_MODEFLAGS);
+#if DRXDAP_SINGLE_MASTER
+ flags |= DRXDAP_FASI_SINGLE_MASTER;
+#endif
+
+ /* Read block from I2C *****************************************************/
+ do {
+ u16_t todo = (datasize < DRXDAP_MAX_RCHUNKSIZE ?
+ datasize : DRXDAP_MAX_RCHUNKSIZE);
+
+ bufx = 0;
+
+ addr &= ~DRXDAP_FASI_FLAGS;
+ addr |= flags;
+
+#if ((DRXDAPFASI_LONG_ADDR_ALLOWED==1) && \
+ (DRXDAPFASI_SHORT_ADDR_ALLOWED==1))
+ /* short format address preferred but long format otherwise */
+ if (DRXDAP_FASI_LONG_FORMAT(addr))
+ {
+#endif
+#if (DRXDAPFASI_LONG_ADDR_ALLOWED==1)
+ buf[bufx++] = (u8_t) (((addr << 1) & 0xFF)|0x01);
+ buf[bufx++] = (u8_t) ((addr >> 16) & 0xFF);
+ buf[bufx++] = (u8_t) ((addr >> 24) & 0xFF);
+ buf[bufx++] = (u8_t) ((addr >> 7) & 0xFF);
+#endif
+#if ((DRXDAPFASI_LONG_ADDR_ALLOWED==1) && \
+ (DRXDAPFASI_SHORT_ADDR_ALLOWED==1))
+ } else {
+#endif
+#if (DRXDAPFASI_SHORT_ADDR_ALLOWED==1)
+ buf[bufx++] = (u8_t) ((addr << 1) & 0xFF);
+ buf[bufx++] = (u8_t) (((addr >> 16) & 0x0F) | ((addr >> 18) & 0xF0));
+#endif
+#if ((DRXDAPFASI_LONG_ADDR_ALLOWED==1) && \
+ (DRXDAPFASI_SHORT_ADDR_ALLOWED==1))
+ }
+#endif
+
+
+
+
+#if DRXDAP_SINGLE_MASTER
+ /*
+ * In single master mode, split the read and write actions.
+ * No special action is needed for write chunks here.
+ */
+ rc = DRXBSP_I2C_WriteRead (devAddr, bufx, buf, 0, 0, 0);
+ if (rc == DRX_STS_OK) {
+ rc = DRXBSP_I2C_WriteRead (0, 0, 0, devAddr, todo, data);
+ }
+#else
+ /* In multi master mode, do everything in one RW action */
+ rc = DRXBSP_I2C_WriteRead (devAddr, bufx, buf, devAddr, todo, data);
+#endif
+ data += todo;
+ addr += (todo >> 1);
+ datasize -= todo;
+ } while (datasize && rc == DRX_STS_OK);
+
+ return rc;
+}
+
+
+
+
+/******************************
+*
+* DRXStatus_t DRXDAP_FASI_ReadModifyWriteReg16 (
+* pI2CDeviceAddr_t devAddr, -- address of I2C device
+* DRXaddr_t waddr, -- address of chip register/memory
+* DRXaddr_t raddr, -- chip address to read back from
+* u16_t wdata, -- data to send
+* pu16_t rdata) -- data to receive back
+*
+* Write 16-bit data, then read back the original contents of that location.
+* Requires long addressing format to be allowed.
+*
+* Before sending data, the data is converted to little endian. The
+* data received back is converted back to the target platform's endianness.
+*
+* WARNING: This function is only guaranteed to work if there is one
+* master on the I2C bus.
+*
+* Output:
+* - DRX_STS_OK if reading was successful
+* in that case: read back data is at *rdata
+* - DRX_STS_ERROR if anything went wrong
+*
+******************************/
+
+static DRXStatus_t DRXDAP_FASI_ReadModifyWriteReg16 (pI2CDeviceAddr_t devAddr,
+ DRXaddr_t waddr,
+ DRXaddr_t raddr,
+ u16_t wdata,
+ pu16_t rdata)
+{
+ DRXStatus_t rc=DRX_STS_ERROR;
+
+#if (DRXDAPFASI_LONG_ADDR_ALLOWED==1)
+ if (rdata == NULL) {
+ return DRX_STS_INVALID_ARG;
+ }
+
+ rc = DRXDAP_FASI_WriteReg16 (devAddr, waddr, wdata, DRXDAP_FASI_RMW);
+ if (rc == DRX_STS_OK) {
+ rc = DRXDAP_FASI_ReadReg16 (devAddr, raddr, rdata, 0);
+ }
+#endif
+
+ return rc;
+}
+
+
+
+
+/******************************
+*
+* DRXStatus_t DRXDAP_FASI_ReadReg16 (
+* pI2CDeviceAddr_t devAddr, -- address of I2C device
+* DRXaddr_t addr, -- address of chip register/memory
+* pu16_t data, -- data to receive
+* DRXflags_t flags) -- special device flags
+*
+* Read one 16-bit register or memory location. The data received back is
+* converted back to the target platform's endianness.
+*
+* Output:
+* - DRX_STS_OK if reading was successful
+* in that case: read data is at *data
+* - DRX_STS_ERROR if anything went wrong
+*
+******************************/
+
+static DRXStatus_t DRXDAP_FASI_ReadReg16 (pI2CDeviceAddr_t devAddr,
+ DRXaddr_t addr,
+ pu16_t data,
+ DRXflags_t flags)
+{
+ u8_t buf[sizeof (*data)];
+ DRXStatus_t rc;
+
+ if (!data) {
+ return DRX_STS_INVALID_ARG;
+ }
+ rc = DRXDAP_FASI_ReadBlock (devAddr, addr, sizeof (*data), buf, flags);
+ *data = buf[0] + (((u16_t) buf[1]) << 8);
+ return rc;
+}
+
+
+
+
+/******************************
+*
+* DRXStatus_t DRXDAP_FASI_ReadReg32 (
+* pI2CDeviceAddr_t devAddr, -- address of I2C device
+* DRXaddr_t addr, -- address of chip register/memory
+* pu32_t data, -- data to receive
+* DRXflags_t flags) -- special device flags
+*
+* Read one 32-bit register or memory location. The data received back is
+* converted back to the target platform's endianness.
+*
+* Output:
+* - DRX_STS_OK if reading was successful
+* in that case: read data is at *data
+* - DRX_STS_ERROR if anything went wrong
+*
+******************************/
+
+static DRXStatus_t DRXDAP_FASI_ReadReg32 (pI2CDeviceAddr_t devAddr,
+ DRXaddr_t addr,
+ pu32_t data,
+ DRXflags_t flags)
+{
+ u8_t buf[sizeof (*data)];
+ DRXStatus_t rc;
+
+ if (!data) {
+ return DRX_STS_INVALID_ARG;
+ }
+ rc = DRXDAP_FASI_ReadBlock (devAddr, addr, sizeof (*data), buf, flags);
+ *data = (((u32_t) buf[0]) << 0) +
+ (((u32_t) buf[1]) << 8) +
+ (((u32_t) buf[2]) << 16) +
+ (((u32_t) buf[3]) << 24);
+ return rc;
+}
+
+
+
+
+/******************************
+*
+* DRXStatus_t DRXDAP_FASI_WriteBlock (
+* pI2CDeviceAddr_t devAddr, -- address of I2C device
+* DRXaddr_t addr, -- address of chip register/memory
+* u16_t datasize, -- number of bytes to read
+* pu8_t data, -- data to receive
+* DRXflags_t flags) -- special device flags
+*
+* Write block data to chip address. Because the chip is word oriented,
+* the number of bytes to write must be even.
+*
+* Although this function expects an even number of bytes, it is still byte
+* oriented, and the data being written is NOT translated from the endianness of
+* the target platform.
+*
+* Output:
+* - DRX_STS_OK if writing was successful
+* - DRX_STS_ERROR if anything went wrong
+*
+******************************/
+
+static DRXStatus_t DRXDAP_FASI_WriteBlock (pI2CDeviceAddr_t devAddr,
+ DRXaddr_t addr,
+ u16_t datasize,
+ pu8_t data,
+ DRXflags_t flags)
+{
+ u8_t buf[ DRXDAP_MAX_WCHUNKSIZE ];
+ DRXStatus_t st = DRX_STS_ERROR;
+ DRXStatus_t firstErr = DRX_STS_OK;
+ u16_t overheadSize = 0;
+ u16_t blockSize = 0;
+
+ /* Check parameters ********************************************************/
+ if (devAddr == NULL) {
+ return DRX_STS_INVALID_ARG;
+ }
+
+ overheadSize = (IS_I2C_10BIT (devAddr->i2cAddr) ? 2 : 1) +
+ (DRXDAP_FASI_LONG_FORMAT(addr) ? 4 : 2);
+
+ if ((DRXDAP_FASI_OFFSET_TOO_LARGE(addr)) ||
+ ((!(DRXDAPFASI_LONG_ADDR_ALLOWED)) &&
+ DRXDAP_FASI_LONG_FORMAT(addr)) ||
+ (overheadSize > (DRXDAP_MAX_WCHUNKSIZE)) ||
+ ((datasize!=0) && (data==NULL)) ||
+ ((datasize & 1)==1)) {
+ return DRX_STS_INVALID_ARG;
+ }
+
+ flags &= DRXDAP_FASI_FLAGS;
+ flags &= ~DRXDAP_FASI_MODEFLAGS;
+#if DRXDAP_SINGLE_MASTER
+ flags |= DRXDAP_FASI_SINGLE_MASTER;
+#endif
+
+ /* Write block to I2C ******************************************************/
+ blockSize = ((DRXDAP_MAX_WCHUNKSIZE) - overheadSize) & ~1;
+ do
+ {
+ u16_t todo = 0;
+ u16_t bufx = 0;
+
+ /* Buffer device address */
+ addr &= ~DRXDAP_FASI_FLAGS;
+ addr |= flags;
+ #if (((DRXDAPFASI_LONG_ADDR_ALLOWED)==1) && \
+ ((DRXDAPFASI_SHORT_ADDR_ALLOWED)==1))
+ /* short format address preferred but long format otherwise */
+ if (DRXDAP_FASI_LONG_FORMAT(addr)) {
+ #endif
+ #if ((DRXDAPFASI_LONG_ADDR_ALLOWED)==1)
+ buf[bufx++] = (u8_t) (((addr << 1) & 0xFF)|0x01);
+ buf[bufx++] = (u8_t) ((addr >> 16) & 0xFF);
+ buf[bufx++] = (u8_t) ((addr >> 24) & 0xFF);
+ buf[bufx++] = (u8_t) ((addr >> 7) & 0xFF);
+ #endif
+ #if (((DRXDAPFASI_LONG_ADDR_ALLOWED)==1) && \
+ ((DRXDAPFASI_SHORT_ADDR_ALLOWED)==1))
+ } else {
+ #endif
+ #if ((DRXDAPFASI_SHORT_ADDR_ALLOWED)==1)
+ buf[bufx++] = (u8_t) ((addr << 1) & 0xFF);
+ buf[bufx++] = (u8_t) (((addr >> 16) & 0x0F) |
+ ((addr >> 18) & 0xF0));
+ #endif
+ #if (((DRXDAPFASI_LONG_ADDR_ALLOWED)==1) && \
+ ((DRXDAPFASI_SHORT_ADDR_ALLOWED)==1))
+ }
+ #endif
+
+ /*
+ In single master mode blockSize can be 0. In such a case this I2C
+ sequense will be visible: (1) write address {i2c addr,
+ 4 bytes chip address} (2) write data {i2c addr, 4 bytes data }
+ (3) write address (4) write data etc...
+ Addres must be rewriten because HI is reset after data transport and
+ expects an address.
+ */
+ todo = (blockSize < datasize ? blockSize : datasize);
+ if (todo==0) {
+ u16_t overheadSizeI2cAddr = 0;
+ u16_t dataBlockSize = 0;
+
+ overheadSizeI2cAddr = (IS_I2C_10BIT (devAddr->i2cAddr)
+ ? 2 : 1);
+ dataBlockSize = (DRXDAP_MAX_WCHUNKSIZE -
+ overheadSizeI2cAddr) & ~1;
+
+ /* write device address */
+ st = DRXBSP_I2C_WriteRead(devAddr,
+ (u16_t) (bufx),
+ buf,
+ (pI2CDeviceAddr_t)(NULL),
+ 0,
+ (pu8_t)(NULL));
+
+ if ((st != DRX_STS_OK) && (firstErr == DRX_STS_OK)) {
+ /* at the end, return the first error encountered */
+ firstErr = st;
+ }
+ bufx = 0;
+ todo = (dataBlockSize < datasize ? dataBlockSize :
+ datasize);
+ }
+ DRXBSP_HST_Memcpy (&buf[bufx], data, todo);
+ /* write (address if can do and) data */
+ st = DRXBSP_I2C_WriteRead(devAddr,
+ (u16_t)(bufx + todo),
+ buf,
+ (pI2CDeviceAddr_t)(NULL),
+ 0,
+ (pu8_t)(NULL));
+
+ if ((st != DRX_STS_OK) && (firstErr == DRX_STS_OK)) {
+ /* at the end, return the first error encountered */
+ firstErr = st;
+ }
+ datasize -= todo;
+ data += todo;
+ addr += (todo >> 1);
+ } while (datasize);
+
+ return firstErr;
+}
+
+
+
+
+/******************************
+*
+* DRXStatus_t DRXDAP_FASI_WriteReg16 (
+* pI2CDeviceAddr_t devAddr, -- address of I2C device
+* DRXaddr_t addr, -- address of chip register/memory
+* u16_t data, -- data to send
+* DRXflags_t flags) -- special device flags
+*
+* Write one 16-bit register or memory location. The data being written is
+* converted from the target platform's endianness to little endian.
+*
+* Output:
+* - DRX_STS_OK if writing was successful
+* - DRX_STS_ERROR if anything went wrong
+*
+******************************/
+
+static DRXStatus_t DRXDAP_FASI_WriteReg16 (pI2CDeviceAddr_t devAddr,
+ DRXaddr_t addr,
+ u16_t data,
+ DRXflags_t flags)
+{
+ u8_t buf[sizeof (data)];
+
+ buf[0] = (u8_t) ((data >> 0) & 0xFF);
+ buf[1] = (u8_t) ((data >> 8) & 0xFF);
+
+ return DRXDAP_FASI_WriteBlock (devAddr, addr, sizeof (data), buf,
+ flags);
+}
+
+
+
+
+/******************************
+*
+* DRXStatus_t DRXDAP_FASI_WriteReg32 (
+* pI2CDeviceAddr_t devAddr, -- address of I2C device
+* DRXaddr_t addr, -- address of chip register/memory
+* u32_t data, -- data to send
+* DRXflags_t flags) -- special device flags
+*
+* Write one 32-bit register or memory location. The data being written is
+* converted from the target platform's endianness to little endian.
+*
+* Output:
+* - DRX_STS_OK if writing was successful
+* - DRX_STS_ERROR if anything went wrong
+*
+******************************/
+
+static DRXStatus_t DRXDAP_FASI_WriteReg32 (pI2CDeviceAddr_t devAddr,
+ DRXaddr_t addr,
+ u32_t data,
+ DRXflags_t flags)
+{
+ u8_t buf[sizeof (data)];
+
+ buf[0] = (u8_t) ((data >> 0) & 0xFF);
+ buf[1] = (u8_t) ((data >> 8) & 0xFF);
+ buf[2] = (u8_t) ((data >> 16) & 0xFF);
+ buf[3] = (u8_t) ((data >> 24) & 0xFF);
+
+ return DRXDAP_FASI_WriteBlock (devAddr, addr, sizeof (data), buf,
+ flags);
+}
--
1.7.5.4
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