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TOMOYO Linux Cross Reference
Linux/include/linux/mfd/davinci_voicecodec.h

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  1 /*
  2  * DaVinci Voice Codec Core Interface for TI platforms
  3  *
  4  * Copyright (C) 2010 Texas Instruments, Inc
  5  *
  6  * Author: Miguel Aguilar <miguel.aguilar@ridgerun.com>
  7  *
  8  * This program is free software; you can redistribute it and/or modify
  9  * it under the terms of the GNU General Public License as published by
 10  * the Free Software Foundation; either version 2 of the License, or
 11  * (at your option) any later version.
 12  *
 13  * This program is distributed in the hope that it will be useful,
 14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
 15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 16  * GNU General Public License for more details.
 17  *
 18  * You should have received a copy of the GNU General Public License
 19  * along with this program; if not, write to the Free Software
 20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 21  */
 22 
 23 #ifndef __LINUX_MFD_DAVINCI_VOICECODEC_H_
 24 #define __LINUX_MFD_DAVINCI_VOICECODEC_H_
 25 
 26 #include <linux/kernel.h>
 27 #include <linux/platform_device.h>
 28 #include <linux/mfd/core.h>
 29 #include <linux/platform_data/edma.h>
 30 
 31 #include <mach/hardware.h>
 32 
 33 struct regmap;
 34 
 35 /*
 36  * Register values.
 37  */
 38 #define DAVINCI_VC_PID                  0x00
 39 #define DAVINCI_VC_CTRL                 0x04
 40 #define DAVINCI_VC_INTEN                0x08
 41 #define DAVINCI_VC_INTSTATUS            0x0c
 42 #define DAVINCI_VC_INTCLR               0x10
 43 #define DAVINCI_VC_EMUL_CTRL            0x14
 44 #define DAVINCI_VC_RFIFO                0x20
 45 #define DAVINCI_VC_WFIFO                0x24
 46 #define DAVINCI_VC_FIFOSTAT             0x28
 47 #define DAVINCI_VC_TST_CTRL             0x2C
 48 #define DAVINCI_VC_REG05                0x94
 49 #define DAVINCI_VC_REG09                0xA4
 50 #define DAVINCI_VC_REG12                0xB0
 51 
 52 /* DAVINCI_VC_CTRL bit fields */
 53 #define DAVINCI_VC_CTRL_MASK            0x5500
 54 #define DAVINCI_VC_CTRL_RSTADC          BIT(0)
 55 #define DAVINCI_VC_CTRL_RSTDAC          BIT(1)
 56 #define DAVINCI_VC_CTRL_RD_BITS_8       BIT(4)
 57 #define DAVINCI_VC_CTRL_RD_UNSIGNED     BIT(5)
 58 #define DAVINCI_VC_CTRL_WD_BITS_8       BIT(6)
 59 #define DAVINCI_VC_CTRL_WD_UNSIGNED     BIT(7)
 60 #define DAVINCI_VC_CTRL_RFIFOEN         BIT(8)
 61 #define DAVINCI_VC_CTRL_RFIFOCL         BIT(9)
 62 #define DAVINCI_VC_CTRL_RFIFOMD_WORD_1  BIT(10)
 63 #define DAVINCI_VC_CTRL_WFIFOEN         BIT(12)
 64 #define DAVINCI_VC_CTRL_WFIFOCL         BIT(13)
 65 #define DAVINCI_VC_CTRL_WFIFOMD_WORD_1  BIT(14)
 66 
 67 /* DAVINCI_VC_INT bit fields */
 68 #define DAVINCI_VC_INT_MASK             0x3F
 69 #define DAVINCI_VC_INT_RDRDY_MASK       BIT(0)
 70 #define DAVINCI_VC_INT_RERROVF_MASK     BIT(1)
 71 #define DAVINCI_VC_INT_RERRUDR_MASK     BIT(2)
 72 #define DAVINCI_VC_INT_WDREQ_MASK       BIT(3)
 73 #define DAVINCI_VC_INT_WERROVF_MASKBIT  BIT(4)
 74 #define DAVINCI_VC_INT_WERRUDR_MASK     BIT(5)
 75 
 76 /* DAVINCI_VC_REG05 bit fields */
 77 #define DAVINCI_VC_REG05_PGA_GAIN       0x07
 78 
 79 /* DAVINCI_VC_REG09 bit fields */
 80 #define DAVINCI_VC_REG09_MUTE           0x40
 81 #define DAVINCI_VC_REG09_DIG_ATTEN      0x3F
 82 
 83 /* DAVINCI_VC_REG12 bit fields */
 84 #define DAVINCI_VC_REG12_POWER_ALL_ON   0xFD
 85 #define DAVINCI_VC_REG12_POWER_ALL_OFF  0x00
 86 
 87 #define DAVINCI_VC_CELLS                2
 88 
 89 enum davinci_vc_cells {
 90         DAVINCI_VC_VCIF_CELL,
 91         DAVINCI_VC_CQ93VC_CELL,
 92 };
 93 
 94 struct davinci_vcif {
 95         struct platform_device  *pdev;
 96         u32 dma_tx_channel;
 97         u32 dma_rx_channel;
 98         dma_addr_t dma_tx_addr;
 99         dma_addr_t dma_rx_addr;
100 };
101 
102 struct davinci_vc;
103 
104 struct davinci_vc {
105         /* Device data */
106         struct device *dev;
107         struct platform_device *pdev;
108         struct clk *clk;
109 
110         /* Memory resources */
111         void __iomem *base;
112         struct regmap *regmap;
113 
114         /* MFD cells */
115         struct mfd_cell cells[DAVINCI_VC_CELLS];
116 
117         /* Client devices */
118         struct davinci_vcif davinci_vcif;
119 };
120 
121 #endif
122 

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