/* * linux/drivers/serial/cpm_uart.h * * Driver for CPM (SCC/SMC) serial ports * * Copyright (C) 2004 Freescale Semiconductor, Inc. * */ #ifndef CPM_UART_H #define CPM_UART_H #include <linux/config.h> #if defined(CONFIG_CPM2) #include "cpm_uart_cpm2.h" #elif defined(CONFIG_8xx) #include "cpm_uart_cpm1.h" #endif #define SERIAL_CPM_MAJOR 204 #define SERIAL_CPM_MINOR 46 #define IS_SMC(pinfo) (pinfo->flags & FLAG_SMC) #define IS_DISCARDING(pinfo) (pinfo->flags & FLAG_DISCARDING) #define FLAG_DISCARDING 0x00000004 /* when set, don't discard */ #define FLAG_SMC 0x00000002 #define FLAG_CONSOLE 0x00000001 #define UART_SMC1 0 #define UART_SMC2 1 #define UART_SCC1 2 #define UART_SCC2 3 #define UART_SCC3 4 #define UART_SCC4 5 #define UART_NR 6 #define RX_NUM_FIFO 4 #define RX_BUF_SIZE 32 #define TX_NUM_FIFO 4 #define TX_BUF_SIZE 32 #define SCC_WAIT_CLOSING 100 struct uart_cpm_port { struct uart_port port; u16 rx_nrfifos; u16 rx_fifosize; u16 tx_nrfifos; u16 tx_fifosize; smc_t *smcp; smc_uart_t *smcup; scc_t *sccp; scc_uart_t *sccup; volatile cbd_t *rx_bd_base; volatile cbd_t *rx_cur; volatile cbd_t *tx_bd_base; volatile cbd_t *tx_cur; unsigned char *tx_buf; unsigned char *rx_buf; u32 flags; void (*set_lineif)(struct uart_cpm_port *); u8 brg; uint dp_addr; void *mem_addr; dma_addr_t dma_addr; /* helpers */ int baud; int bits; /* Keep track of 'odd' SMC2 wirings */ int is_portb; /* wait on close if needed */ int wait_closing; }; extern int cpm_uart_port_map[UART_NR]; extern int cpm_uart_nr; extern struct uart_cpm_port cpm_uart_ports[UART_NR]; /* these are located in their respective files */ void cpm_line_cr_cmd(int line, int cmd); int cpm_uart_init_portdesc(void); int cpm_uart_allocbuf(struct uart_cpm_port *pinfo, unsigned int is_con); void cpm_uart_freebuf(struct uart_cpm_port *pinfo); void smc1_lineif(struct uart_cpm_port *pinfo); void smc2_lineif(struct uart_cpm_port *pinfo); void scc1_lineif(struct uart_cpm_port *pinfo); void scc2_lineif(struct uart_cpm_port *pinfo); void scc3_lineif(struct uart_cpm_port *pinfo); void scc4_lineif(struct uart_cpm_port *pinfo); #endif /* CPM_UART_H */