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linux-vybrid_pu...
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drivers
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serial
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cpm_uart
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cpm_uart.h

cpm_uart.h 2.2 KB
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  1. /*
    2. 

  2.  *  linux/drivers/serial/cpm_uart.h
    3. 

  3.  *
    4. 

  4.  *  Driver for CPM (SCC/SMC) serial ports
    5. 

  5.  *
    6. 

  6.  *  Copyright (C) 2004 Freescale Semiconductor, Inc.
    7. 

  7.  *
    8. 

  8.  */
    9. 

  9. #ifndef CPM_UART_H
    10. 

  10. #define CPM_UART_H
    11. 

  11. 

  12. #include <linux/config.h>
    13. 

  13. 

  14. #if defined(CONFIG_CPM2)
    15. 

  15. #include "cpm_uart_cpm2.h"
    16. 

  16. #elif defined(CONFIG_8xx)
    17. 

  17. #include "cpm_uart_cpm1.h"
    18. 

  18. #endif
    19. 

  19. 

  20. #define SERIAL_CPM_MAJOR	204
    21. 

  21. #define SERIAL_CPM_MINOR	46
    22. 

  22. 

  23. #define IS_SMC(pinfo) 		(pinfo->flags & FLAG_SMC)
    24. 

  24. #define IS_DISCARDING(pinfo)	(pinfo->flags & FLAG_DISCARDING)
    25. 

  25. #define FLAG_DISCARDING	0x00000004	/* when set, don't discard */
    26. 

  26. #define FLAG_SMC	0x00000002
    27. 

  27. #define FLAG_CONSOLE	0x00000001
    28. 

  28. 

  29. #define UART_SMC1	0
    30. 

  30. #define UART_SMC2	1
    31. 

  31. #define UART_SCC1	2
    32. 

  32. #define UART_SCC2	3
    33. 

  33. #define UART_SCC3	4
    34. 

  34. #define UART_SCC4	5
    35. 

  35. 

  36. #define UART_NR	6
    37. 

  37. 

  38. #define RX_NUM_FIFO	4
    39. 

  39. #define RX_BUF_SIZE	32
    40. 

  40. #define TX_NUM_FIFO	4
    41. 

  41. #define TX_BUF_SIZE	32
    42. 

  42. 

  43. #define SCC_WAIT_CLOSING 100
    44. 

  44. 

  45. struct uart_cpm_port {
    46. 

  46. 	struct uart_port	port;
    47. 

  47. 	u16			rx_nrfifos;
    48. 

  48. 	u16			rx_fifosize;
    49. 

  49. 	u16			tx_nrfifos;
    50. 

  50. 	u16			tx_fifosize;
    51. 

  51. 	smc_t			*smcp;
    52. 

  52. 	smc_uart_t		*smcup;
    53. 

  53. 	scc_t			*sccp;
    54. 

  54. 	scc_uart_t		*sccup;
    55. 

  55. 	volatile cbd_t		*rx_bd_base;
    56. 

  56. 	volatile cbd_t		*rx_cur;
    57. 

  57. 	volatile cbd_t		*tx_bd_base;
    58. 

  58. 	volatile cbd_t		*tx_cur;
    59. 

  59. 	unsigned char		*tx_buf;
    60. 

  60. 	unsigned char		*rx_buf;
    61. 

  61. 	u32			flags;
    62. 

  62. 	void			(*set_lineif)(struct uart_cpm_port *);
    63. 

  63. 	u8			brg;
    64. 

  64. 	uint			 dp_addr;
    65. 

  65. 	void			*mem_addr;
    66. 

  66. 	dma_addr_t		 dma_addr;
    67. 

  67. 	/* helpers */
    68. 

  68. 	int			 baud;
    69. 

  69. 	int			 bits;
    70. 

  70. 	/* Keep track of 'odd' SMC2 wirings */
    71. 

  71. 	int			is_portb;
    72. 

  72. 	/* wait on close if needed */
    73. 

  73. 	int 			wait_closing;
    74. 

  74. };
    75. 

  75. 

  76. extern int cpm_uart_port_map[UART_NR];
    77. 

  77. extern int cpm_uart_nr;
    78. 

  78. extern struct uart_cpm_port cpm_uart_ports[UART_NR];
    79. 

  79. 

  80. /* these are located in their respective files */
    81. 

  81. void cpm_line_cr_cmd(int line, int cmd);
    82. 

  82. int cpm_uart_init_portdesc(void);
    83. 

  83. int cpm_uart_allocbuf(struct uart_cpm_port *pinfo, unsigned int is_con);
    84. 

  84. void cpm_uart_freebuf(struct uart_cpm_port *pinfo);
    85. 

  85. 

  86. void smc1_lineif(struct uart_cpm_port *pinfo);
    87. 

  87. void smc2_lineif(struct uart_cpm_port *pinfo);
    88. 

  88. void scc1_lineif(struct uart_cpm_port *pinfo);
    89. 

  89. void scc2_lineif(struct uart_cpm_port *pinfo);
    90. 

  90. void scc3_lineif(struct uart_cpm_port *pinfo);
    91. 

  91. void scc4_lineif(struct uart_cpm_port *pinfo);
    92. 

  92. 

  93. #endif /* CPM_UART_H */
    94.