include/linux/mfd/davinci_voicecodec.h

   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 struct regmap;
  32
  33 /*
  34  * Register values.
  35  */
  36 #define DAVINCI_VC_PID                  0x00
  37 #define DAVINCI_VC_CTRL                 0x04
  38 #define DAVINCI_VC_INTEN                0x08
  39 #define DAVINCI_VC_INTSTATUS            0x0c
  40 #define DAVINCI_VC_INTCLR               0x10
  41 #define DAVINCI_VC_EMUL_CTRL            0x14
  42 #define DAVINCI_VC_RFIFO                0x20
  43 #define DAVINCI_VC_WFIFO                0x24
  44 #define DAVINCI_VC_FIFOSTAT             0x28
  45 #define DAVINCI_VC_TST_CTRL             0x2C
  46 #define DAVINCI_VC_REG05                0x94
  47 #define DAVINCI_VC_REG09                0xA4
  48 #define DAVINCI_VC_REG12                0xB0
  49
  50 /* DAVINCI_VC_CTRL bit fields */
  51 #define DAVINCI_VC_CTRL_MASK            0x5500
  52 #define DAVINCI_VC_CTRL_RSTADC          BIT(0)
  53 #define DAVINCI_VC_CTRL_RSTDAC          BIT(1)
  54 #define DAVINCI_VC_CTRL_RD_BITS_8       BIT(4)
  55 #define DAVINCI_VC_CTRL_RD_UNSIGNED     BIT(5)
  56 #define DAVINCI_VC_CTRL_WD_BITS_8       BIT(6)
  57 #define DAVINCI_VC_CTRL_WD_UNSIGNED     BIT(7)
  58 #define DAVINCI_VC_CTRL_RFIFOEN         BIT(8)
  59 #define DAVINCI_VC_CTRL_RFIFOCL         BIT(9)
  60 #define DAVINCI_VC_CTRL_RFIFOMD_WORD_1  BIT(10)
  61 #define DAVINCI_VC_CTRL_WFIFOEN         BIT(12)
  62 #define DAVINCI_VC_CTRL_WFIFOCL         BIT(13)
  63 #define DAVINCI_VC_CTRL_WFIFOMD_WORD_1  BIT(14)
  64
  65 /* DAVINCI_VC_INT bit fields */
  66 #define DAVINCI_VC_INT_MASK             0x3F
  67 #define DAVINCI_VC_INT_RDRDY_MASK       BIT(0)
  68 #define DAVINCI_VC_INT_RERROVF_MASK     BIT(1)
  69 #define DAVINCI_VC_INT_RERRUDR_MASK     BIT(2)
  70 #define DAVINCI_VC_INT_WDREQ_MASK       BIT(3)
  71 #define DAVINCI_VC_INT_WERROVF_MASKBIT  BIT(4)
  72 #define DAVINCI_VC_INT_WERRUDR_MASK     BIT(5)
  73
  74 /* DAVINCI_VC_REG05 bit fields */
  75 #define DAVINCI_VC_REG05_PGA_GAIN       0x07
  76
  77 /* DAVINCI_VC_REG09 bit fields */
  78 #define DAVINCI_VC_REG09_MUTE           0x40
  79 #define DAVINCI_VC_REG09_DIG_ATTEN      0x3F
  80
  81 /* DAVINCI_VC_REG12 bit fields */
  82 #define DAVINCI_VC_REG12_POWER_ALL_ON   0xFD
  83 #define DAVINCI_VC_REG12_POWER_ALL_OFF  0x00
  84
  85 #define DAVINCI_VC_CELLS                2
  86
  87 enum davinci_vc_cells {
  88         DAVINCI_VC_VCIF_CELL,
  89         DAVINCI_VC_CQ93VC_CELL,
  90 };
  91
  92 struct davinci_vcif {
  93         struct platform_device  *pdev;
  94         u32 dma_tx_channel;
  95         u32 dma_rx_channel;
  96         dma_addr_t dma_tx_addr;
  97         dma_addr_t dma_rx_addr;
  98 };
  99
 100 struct davinci_vc {
 101         /* Device data */
 102         struct device *dev;
 103         struct platform_device *pdev;
 104         struct clk *clk;
 105
 106         /* Memory resources */
 107         void __iomem *base;
 108         struct regmap *regmap;
 109
 110         /* MFD cells */
 111         struct mfd_cell cells[DAVINCI_VC_CELLS];
 112
 113         /* Client devices */
 114         struct davinci_vcif davinci_vcif;
 115 };
 116
 117 #endif