release/src-rt-6.x.4708/linux/linux-2.6.36/sound/soc/omap/omap-mcbsp.h

   1 /*
   2  * omap-mcbsp.h
   3  *
   4  * Copyright (C) 2008 Nokia Corporation
   5  *
   6  * Contact: Jarkko Nikula <jhnikula@gmail.com>
   7  *          Peter Ujfalusi <peter.ujfalusi@nokia.com>
   8  *
   9  * This program is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU General Public License
  11  * version 2 as published by the Free Software Foundation.
  12  *
  13  * This program is distributed in the hope that it will be useful, but
  14  * WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * 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., 51 Franklin St, Fifth Floor, Boston, MA
  21  * 02110-1301 USA
  22  *
  23  */
  24
  25 #ifndef __OMAP_I2S_H__
  26 #define __OMAP_I2S_H__
  27
  28 /* Source clocks for McBSP sample rate generator */
  29 enum omap_mcbsp_clksrg_clk {
  30         OMAP_MCBSP_SYSCLK_CLKS_FCLK,    /* Internal FCLK */
  31         OMAP_MCBSP_SYSCLK_CLKS_EXT,     /* External CLKS pin */
  32         OMAP_MCBSP_SYSCLK_CLK,          /* Internal ICLK */
  33         OMAP_MCBSP_SYSCLK_CLKX_EXT,     /* External CLKX pin */
  34         OMAP_MCBSP_SYSCLK_CLKR_EXT,     /* External CLKR pin */
  35         OMAP_MCBSP_CLKR_SRC_CLKR,       /* CLKR from CLKR pin */
  36         OMAP_MCBSP_CLKR_SRC_CLKX,       /* CLKR from CLKX pin */
  37         OMAP_MCBSP_FSR_SRC_FSR,         /* FSR from FSR pin */
  38         OMAP_MCBSP_FSR_SRC_FSX,         /* FSR from FSX pin */
  39 };
  40
  41 /* McBSP dividers */
  42 enum omap_mcbsp_div {
  43         OMAP_MCBSP_CLKGDV,              /* Sample rate generator divider */
  44 };
  45
  46 #if defined(CONFIG_ARCH_OMAP2420)
  47 #define NUM_LINKS       2
  48 #endif
  49 #if defined(CONFIG_ARCH_OMAP15XX) || defined(CONFIG_ARCH_OMAP16XX)
  50 #undef  NUM_LINKS
  51 #define NUM_LINKS       3
  52 #endif
  53 #if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3)
  54 #undef  NUM_LINKS
  55 #define NUM_LINKS       5
  56 #endif
  57
  58 extern struct snd_soc_dai omap_mcbsp_dai[NUM_LINKS];
  59
  60 int omap_mcbsp_st_add_controls(struct snd_soc_codec *codec, int mcbsp_id);
  61
  62 #endif