aic23.c
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上传日期:2008-01-29
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文件大小:7k
- /*
- * Copyright 2003 by Texas Instruments Incorporated.
- * All rights reserved. Property of Texas Instruments Incorporated.
- * Restricted rights to use, duplicate or disclose this code are
- * granted through contract.
- *
- */
- /* "@(#) DDK 1.10.00.23 07-02-03 (ddk-b12)" */
- /*
- * ======== aic23.c ========
- *
- * AIC23 codec driver implementation specific to the
- * Spectrum Digital DSK5510 board.
- */
-
- #include <aic23.h>
- #include <csl.h>
- #include <csl_mcbsp.h>
- static void aic23Rset(MCBSP_Handle hMcbsp, Uint16 regnum, Uint16 regval);
- /* CSL handle to the McBSP1. The McBSP is used as the control channel in SPI*/
- static MCBSP_Config mcbspCfg1 = {
- MCBSP_SPCR1_RMK(
- MCBSP_SPCR1_DLB_OFF, /* DLB = 0 */
- MCBSP_SPCR1_RJUST_RZF, /* RJUST = 0 */
- MCBSP_SPCR1_CLKSTP_NODELAY, /* CLKSTP = 1 */
- MCBSP_SPCR1_DXENA_NA, /* DXENA = 0 */
- MCBSP_SPCR1_ABIS_DISABLE, /* ABIS = 0 */
- MCBSP_SPCR1_RINTM_RRDY, /* RINTM = 0 */
- 0, /* RSYNCER = 0 */
- 0, /* RFULL = 0 */
- 0, /* RRDY = 0 */
- MCBSP_SPCR1_RRST_DISABLE /* RRST = 0 */
- ),
- MCBSP_SPCR2_RMK(
- MCBSP_SPCR2_FREE_NO, /* FREE = 0 */
- MCBSP_SPCR2_SOFT_YES, /* SOFT = 1 */
- MCBSP_SPCR2_FRST_RESET, /* FRST = 0 */
- MCBSP_SPCR2_GRST_RESET, /* GRST = 0 */
- MCBSP_SPCR2_XINTM_XRDY, /* XINTM = 0 */
- 0, /* XSYNCER = 0 */
- 0, /* XEMPTY = 0 */
- 0, /* XRDY = 0 */
- MCBSP_SPCR2_XRST_DISABLE /* XRST = 0 */
- ),
- MCBSP_RCR1_RMK(
- MCBSP_RCR1_RFRLEN1_OF(0), /* RFRLEN1 = 0 */
- MCBSP_RCR1_RWDLEN1_8BIT /* RWDLEN1 = 0 */
- ),
- MCBSP_RCR2_RMK(
- MCBSP_RCR2_RPHASE_SINGLE, /* RPHASE = 0 */
- MCBSP_RCR2_RFRLEN2_OF(0), /* RFRLEN2 = 0 */
- MCBSP_RCR2_RWDLEN2_8BIT, /* RWDLEN2 = 0 */
- MCBSP_RCR2_RCOMPAND_MSB, /* RCOMPAND = 0 */
- MCBSP_RCR2_RFIG_YES, /* RFIG = 0 */
- MCBSP_RCR2_RDATDLY_0BIT /* RDATDLY = 0 */
- ),
- MCBSP_XCR1_RMK(
- MCBSP_XCR1_XFRLEN1_OF(0), /* XFRLEN1 = 1 */
- MCBSP_XCR1_XWDLEN1_16BIT /* XWDLEN1 = 2 */
- ),
- MCBSP_XCR2_RMK(
- MCBSP_XCR2_XPHASE_SINGLE, /* XPHASE = 0 */
- MCBSP_XCR2_XFRLEN2_OF(0), /* XFRLEN2 = 0 */
- MCBSP_XCR2_XWDLEN2_8BIT, /* XWDLEN2 = 0 */
- MCBSP_XCR2_XCOMPAND_MSB, /* XCOMPAND = 0 */
- MCBSP_XCR2_XFIG_YES, /* XFIG = 0 */
- MCBSP_XCR2_XDATDLY_0BIT /* XDATDLY = 0 */
- ),
- MCBSP_SRGR1_RMK(
- MCBSP_SRGR1_FWID_OF(0), /* FWID = 0 */
- MCBSP_SRGR1_CLKGDV_OF(63) /* CLKGDV = 63 */
- ),
- MCBSP_SRGR2_RMK(
- MCBSP_SRGR2_GSYNC_FREE, /* FREE = 0 */
- MCBSP_SRGR2_CLKSP_RISING, /* CLKSP = 0 */
- MCBSP_SRGR2_CLKSM_INTERNAL, /* CLKSM = 1 */
- MCBSP_SRGR2_FSGM_DXR2XSR, /* FSGM = 0 */
- MCBSP_SRGR2_FPER_OF(13) /* FPER = 13 */
- ),
- MCBSP_MCR1_DEFAULT,
- MCBSP_MCR2_DEFAULT,
- MCBSP_PCR_RMK(
- MCBSP_PCR_IDLEEN_RESET, /* IDLEEN = 0 */
- MCBSP_PCR_XIOEN_SP, /* XIOEN = 0 */
- MCBSP_PCR_RIOEN_GPIO, /* RIOEN = 1 */
- MCBSP_PCR_FSXM_INTERNAL, /* FSXM = 1 */
- MCBSP_PCR_FSRM_EXTERNAL, /* FSRM = 0 */
- MCBSP_PCR_SCLKME_NO, /* SCLKME = 0 */
- 0, /* CLKSSTAT = 0 */
- 0, /* DXSTAT = 0 */
- 0, /* DRSTAT = 0 */
- MCBSP_PCR_CLKXM_OUTPUT, /* CLKXM = 1 */
- MCBSP_PCR_CLKRM_INPUT, /* CLKRM = 0 */
- MCBSP_PCR_FSXP_ACTIVELOW, /* FSXP = 1 */
- MCBSP_PCR_FSRP_ACTIVEHIGH, /* FSRP = 0 */
- MCBSP_PCR_CLKXP_FALLING, /* CLKXP = 1 */
- MCBSP_PCR_CLKRP_FALLING /* CLKRP = 0 */
- ),
- MCBSP_RCERA_DEFAULT,
- MCBSP_RCERB_DEFAULT,
- MCBSP_RCERC_DEFAULT,
- MCBSP_RCERD_DEFAULT,
- MCBSP_RCERE_DEFAULT,
- MCBSP_RCERF_DEFAULT,
- MCBSP_RCERG_DEFAULT,
- MCBSP_RCERH_DEFAULT,
- MCBSP_XCERA_DEFAULT,
- MCBSP_XCERB_DEFAULT,
- MCBSP_XCERC_DEFAULT,
- MCBSP_XCERD_DEFAULT,
- MCBSP_XCERE_DEFAULT,
- MCBSP_XCERF_DEFAULT,
- MCBSP_XCERG_DEFAULT,
- MCBSP_XCERH_DEFAULT
- };
- /*
- * ======== AIC23_setParams ========
- *
- * This function takes a pointer to the object of type AIC23_Params,
- * and writes all 11 control words found in it to the codec. Prior
- * to that it initializes the codec if this is the first time the
- * function is ever called.
- * The 16-bit word is composed of register address in the upper 7 bits
- * and the 9-bit register value stored in the parameters structure.
- */
- Int AIC23_setParams(AIC23_Params *params)
- {
- Int i;
- MCBSP_Handle hMcbsp;
- /* open and configure McBSPs */
- hMcbsp = MCBSP_open(MCBSP_PORT1, MCBSP_OPEN_RESET);
- if (hMcbsp == INV) {
- return FALSE;
- }
-
- MCBSP_config(hMcbsp, &mcbspCfg1);
- /*
- * Initialize the AIC23 codec
- */
- /* Start McBSP1 as the codec control channel */
- MCBSP_start(hMcbsp, MCBSP_XMIT_START |
- MCBSP_SRGR_START | MCBSP_SRGR_FRAMESYNC, 100);
-
- /* Reset the AIC23 */
- aic23Rset(hMcbsp, AIC23_RESET, 0);
-
- /* Assign each register */
- for (i = 0; i < AIC23_NUMREGS; i++) {
- aic23Rset(hMcbsp, i, params->regs[i]);
- }
- return TRUE;
- }
- /*
- * ======== aic23Rset ========
- * Set codec register regnum to value regval
- */
- static Void aic23Rset(MCBSP_Handle hMcbsp, Uint16 regnum, Uint16 regval)
- {
- /* Mask off lower 9 bits */
- regval &= 0x1ff;
-
- /* Wait for XRDY signal before writing data to DXR */
- while (!MCBSP_xrdy(hMcbsp));
-
- /* Write 16 bit data value to DXR */
- MCBSP_write16(hMcbsp, (regnum << 9) | regval);
- }