sound/soc/omap/omap-mcbsp.h

   1 /*
   2  * omap-mcbsp.h
   3  *
   4  * Copyright (C) 2008 Nokia Corporation
   5  *
   6  * Contact: Jarkko Nikula <jarkko.nikula@nokia.com>
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License
  10  * version 2 as published by the Free Software Foundation.
  11  *
  12  * This program is distributed in the hope that it will be useful, but
  13  * WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  20  * 02110-1301 USA
  21  *
  22  */
  23
  24 #ifndef __OMAP_I2S_H__
  25 #define __OMAP_I2S_H__
  26
  27 /* Source clocks for McBSP sample rate generator */
  28 enum omap_mcbsp_clksrg_clk {
  29         OMAP_MCBSP_SYSCLK_CLKS_FCLK,    /* Internal FCLK */
  30         OMAP_MCBSP_SYSCLK_CLKS_EXT,     /* External CLKS pin */
  31         OMAP_MCBSP_SYSCLK_CLK,          /* Internal ICLK */
  32         OMAP_MCBSP_SYSCLK_CLKX_EXT,     /* External CLKX pin */
  33         OMAP_MCBSP_SYSCLK_CLKR_EXT,     /* External CLKR pin */
  34 };
  35
  36 /* McBSP dividers */
  37 enum omap_mcbsp_div {
  38         OMAP_MCBSP_CLKGDV,              /* Sample rate generator divider */
  39 };
  40
  41 #if defined(CONFIG_ARCH_OMAP2420)
  42 #define NUM_LINKS       2
  43 #endif
  44 #if defined(CONFIG_ARCH_OMAP15XX) || defined(CONFIG_ARCH_OMAP16XX)
  45 #undef  NUM_LINKS
  46 #define NUM_LINKS       3
  47 #endif
  48 #if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP34XX)
  49 #undef  NUM_LINKS
  50 #define NUM_LINKS       5
  51 #endif
  52
  53 extern struct snd_soc_dai omap_mcbsp_dai[NUM_LINKS];
  54
  55 #endif