include/linux/fs_uart_pd.h

   1 /*
   2  * Platform information definitions for the CPM Uart driver.
   3  *
   4  * 2006 (c) MontaVista Software, Inc.
   5  * Vitaly Bordug <vbordug@ru.mvista.com>
   6  *
   7  * This file is licensed under the terms of the GNU General Public License
   8  * version 2. This program is licensed "as is" without any warranty of any
   9  * kind, whether express or implied.
  10  */
  11
  12 #ifndef FS_UART_PD_H
  13 #define FS_UART_PD_H
  14
  15 #include <asm/types.h>
  16
  17 enum fs_uart_id {
  18         fsid_smc1_uart,
  19         fsid_smc2_uart,
  20         fsid_scc1_uart,
  21         fsid_scc2_uart,
  22         fsid_scc3_uart,
  23         fsid_scc4_uart,
  24         fs_uart_nr,
  25 };
  26
  27 static inline int fs_uart_id_scc2fsid(int id)
  28 {
  29     return fsid_scc1_uart + id - 1;
  30 }
  31
  32 static inline int fs_uart_id_fsid2scc(int id)
  33 {
  34     return id - fsid_scc1_uart + 1;
  35 }
  36
  37 static inline int fs_uart_id_smc2fsid(int id)
  38 {
  39     return fsid_smc1_uart + id - 1;
  40 }
  41
  42 static inline int fs_uart_id_fsid2smc(int id)
  43 {
  44     return id - fsid_smc1_uart + 1;
  45 }
  46
  47 struct fs_uart_platform_info {
  48         void(*init_ioports)(struct fs_uart_platform_info *);
  49         /* device specific information */
  50         int fs_no;              /* controller index */
  51         char fs_type[4];        /* controller type  */
  52         u32 uart_clk;
  53         u8 tx_num_fifo;
  54         u8 tx_buf_size;
  55         u8 rx_num_fifo;
  56         u8 rx_buf_size;
  57         u8 brg;
  58         u8 clk_rx;
  59         u8 clk_tx;
  60 };
  61
  62 static inline int fs_uart_get_id(struct fs_uart_platform_info *fpi)
  63 {
  64         if(strstr(fpi->fs_type, "SMC"))
  65                 return fs_uart_id_smc2fsid(fpi->fs_no);
  66         if(strstr(fpi->fs_type, "SCC"))
  67                 return fs_uart_id_scc2fsid(fpi->fs_no);
  68         return fpi->fs_no;
  69 }
  70
  71 #endif