125 lines
4.3 KiB
C
125 lines
4.3 KiB
C
/*
|
|
* (C) Copyright 2002
|
|
* Custom IDEAS, Inc. <www.cideas.com>
|
|
* Jon Diekema <diekema@cideas.com>
|
|
*
|
|
* See file CREDITS for list of people who contributed to this
|
|
* project.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation; either version 2 of
|
|
* the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
|
|
* MA 02111-1307 USA
|
|
*/
|
|
|
|
#ifndef FALSE
|
|
#define FALSE 0
|
|
#define TRUE (!FALSE)
|
|
#endif
|
|
|
|
#define SLRCLK_EN_MASK 0x00040000 /* PA13 - SLRCLK_EN* */
|
|
|
|
#define MIN_SAMPLE_RATE 4000 /* Minimum sample rate */
|
|
#define MAX_128x_SAMPLE_RATE 43402 /* Maximum 128x sample rate */
|
|
#define MAX_64x_SAMPLE_RATE 86805 /* Maximum 64x sample rate */
|
|
|
|
#define KHZ ((uint)1000)
|
|
#define MHZ ((uint)(1000 * KHZ))
|
|
|
|
#define MCLK_BRG 3 /* MCLK, Master CLocK for the A/D & D/A */
|
|
#define SCLK_BRG 7 /* SCLK, Sample CLocK for the A/D & D/A */
|
|
#define LRCLK_BRG 5 /* LRCLK, L/R CLocK for the A/D & D/A */
|
|
/* 0 == BRG1 (used for SMC1) */
|
|
/* 1 == BRG2 (used for SMC2) */
|
|
/* 2 == BRG3 (used for SCC1) */
|
|
/* 3 == BRG4 (MCLK) */
|
|
/* 4 == BRG5 */
|
|
/* 5 == BRG6 (LRCLK) */
|
|
/* 6 == BRG7 */
|
|
/* 7 == BRG8 (SCLK) */
|
|
|
|
#define MCLK_DIVISOR 4 /* SCLK = MCLK / MCLK_DIVISOR */
|
|
#define SCLK_DIVISOR (Daq64xSampling ? 64 : 128)
|
|
/* LRCLK = SCLK / SCLK_DIVISOR */
|
|
|
|
#define TIGHTEN_UP_BRG_EN_TIMING /* Tighten up the BRG enable timing */
|
|
#define RUN_SCLK_ON_BRG_INT /* Run SCLK on BRG_INT instead of MCLK */
|
|
/* The 8260 (Mask B.3) seems to have */
|
|
/* problems generating SCLK from MCLK */
|
|
/* via CLK9. */
|
|
#define RUN_LRCLK_ON_BRG_INT /* Run LRCLK on BRG_INT instead of SCLK */
|
|
/* The 8260 (Mask B.3) seems to have */
|
|
/* problems generating LRCLK from SCLK */
|
|
|
|
#define NUM_LRCLKS_TO_STABILIZE 1 /* Number of LRCLK period (sample) */
|
|
/* to wait for the clock to stabilize */
|
|
|
|
#define CPM_CLK (gd->bd->bi_cpmfreq)
|
|
#define DFBRG 4
|
|
#define BRG_INT_CLK (CPM_CLK * 2 / DFBRG)
|
|
/* BRG = CPM * 2 / DFBRG (Sect 9.8) */
|
|
/* BRG = CPM * 2 / 4 */
|
|
/* BRG = CPM / 2 */
|
|
|
|
#define CPM_BRG_EXTC_MASK ((uint)0x0000C000)
|
|
#define CPM_BRG_EXTC_SHIFT 14
|
|
|
|
#define CPM_BRG_DIV16_MASK ((uint)0x00000001)
|
|
#define CPM_BRG_DIV16_SHIFT 1
|
|
|
|
#define CPM_BRG_EXTC_BRGCLK 0
|
|
#define CPM_BRG_EXTC_CLK3 1
|
|
#define CPM_BRG_EXTC_CLK9 CPM_BRG_EXTC_CLK3
|
|
#define CPM_BRG_EXTC_CLK5 2
|
|
#define CPM_BRG_EXTC_CLK15 CPM_BRG_EXTC_CLK5
|
|
|
|
#define IM_BRGC1 ((uint *)0xf00119f0)
|
|
#define IM_BRGC2 ((uint *)0xf00119f4)
|
|
#define IM_BRGC3 ((uint *)0xf00119f8)
|
|
#define IM_BRGC4 ((uint *)0xf00119fc)
|
|
#define IM_BRGC5 ((uint *)0xf00115f0)
|
|
#define IM_BRGC6 ((uint *)0xf00115f4)
|
|
#define IM_BRGC7 ((uint *)0xf00115f8)
|
|
#define IM_BRGC8 ((uint *)0xf00115fc)
|
|
|
|
/*
|
|
* External declarations
|
|
*/
|
|
|
|
extern int Daq64xSampling;
|
|
|
|
extern void Daq_BRG_Reset(uint brg);
|
|
extern void Daq_BRG_Run(uint brg);
|
|
|
|
extern void Daq_BRG_Disable(uint brg);
|
|
extern void Daq_BRG_Enable(uint brg);
|
|
|
|
extern uint Daq_BRG_Get_Div16(uint brg);
|
|
extern void Daq_BRG_Set_Div16(uint brg, uint div16);
|
|
|
|
extern uint Daq_BRG_Get_Count(uint brg);
|
|
extern void Daq_BRG_Set_Count(uint brg, uint brg_cnt);
|
|
|
|
extern uint Daq_BRG_Get_ExtClk(uint brg);
|
|
extern char* Daq_BRG_Get_ExtClk_Description(uint brg);
|
|
extern void Daq_BRG_Set_ExtClk(uint brg, uint extc);
|
|
|
|
extern uint Daq_BRG_Rate(uint brg);
|
|
|
|
extern uint Daq_Get_SampleRate(void);
|
|
|
|
extern void Daq_Init_Clocks(int sample_rate, int sample_64x);
|
|
extern void Daq_Stop_Clocks(void);
|
|
extern void Daq_Start_Clocks(int sample_rate);
|
|
extern void Daq_Display_Clocks(void);
|