X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Flinux%2Fserial_core.h;h=cf23813cbec2a449cadec31f9d68e50e4a4f0bf3;hb=97bf2856c6014879bd04983a3e9dfcdac1e7fe85;hp=4d7dd853874b84eed5693d7431584b49e9028fad;hpb=5273a3df6485dc2ad6aa7ddd441b9a21970f003b;p=linux-2.6.git diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h index 4d7dd8538..cf23813cb 100644 --- a/include/linux/serial_core.h +++ b/include/linux/serial_core.h @@ -17,6 +17,8 @@ * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ +#ifndef LINUX_SERIAL_CORE_H +#define LINUX_SERIAL_CORE_H /* * The type definitions. These are from Ted Ts'o's serial.h @@ -59,20 +61,15 @@ /* NEC v850. */ #define PORT_V850E_UART 40 -/* NEC PC-9800 */ -#define PORT_8251_PC98 41 -#define PORT_19K_PC98 42 -#define PORT_FIFO_PC98 43 -#define PORT_VFAST_PC98 44 -#define PORT_PC9861 45 -#define PORT_PC9801_101 46 - /* DZ */ #define PORT_DZ 47 /* Parisc type numbers. */ #define PORT_MUX 48 +/* Atmel AT91 / AT32 SoC */ +#define PORT_ATMEL 49 + /* Macintosh Zilog type numbers */ #define PORT_MAC_ZILOG 50 /* m68k : not yet implemented */ #define PORT_PMAC_ZILOG 51 @@ -85,13 +82,68 @@ /* Samsung S3C2410 SoC and derivatives thereof */ #define PORT_S3C2410 55 +/* SGI IP22 aka Indy / Challenge S / Indigo 2 */ +#define PORT_IP22ZILOG 56 + +/* Sharp LH7a40x -- an ARM9 SoC series */ +#define PORT_LH7A40X 57 + +/* PPC CPM type number */ +#define PORT_CPM 58 + +/* MPC52xx type numbers */ +#define PORT_MPC52xx 59 + +/* IBM icom */ +#define PORT_ICOM 60 + +/* Samsung S3C2440 SoC */ +#define PORT_S3C2440 61 + +/* Motorola i.MX SoC */ +#define PORT_IMX 62 + +/* Marvell MPSC */ +#define PORT_MPSC 63 + +/* TXX9 type number */ +#define PORT_TXX9 64 + +/* NEC VR4100 series SIU/DSIU */ +#define PORT_VR41XX_SIU 65 +#define PORT_VR41XX_DSIU 66 + +/* Samsung S3C2400 SoC */ +#define PORT_S3C2400 67 + +/* M32R SIO */ +#define PORT_M32R_SIO 68 + +/*Digi jsm */ +#define PORT_JSM 69 + +#define PORT_IP3106 70 + +/* Hilscher netx */ +#define PORT_NETX 71 + +/* SUN4V Hypervisor Console */ +#define PORT_SUNHV 72 + +#define PORT_S3C2412 73 + +/* Xilinx uartlite */ +#define PORT_UARTLITE 74 + #ifdef __KERNEL__ -#include +#include #include #include #include #include +#include +#include struct uart_port; struct uart_info; @@ -106,16 +158,16 @@ struct uart_ops { unsigned int (*tx_empty)(struct uart_port *); void (*set_mctrl)(struct uart_port *, unsigned int mctrl); unsigned int (*get_mctrl)(struct uart_port *); - void (*stop_tx)(struct uart_port *, unsigned int tty_stop); - void (*start_tx)(struct uart_port *, unsigned int tty_start); + void (*stop_tx)(struct uart_port *); + void (*start_tx)(struct uart_port *); void (*send_xchar)(struct uart_port *, char ch); void (*stop_rx)(struct uart_port *); void (*enable_ms)(struct uart_port *); void (*break_ctl)(struct uart_port *, int ctl); int (*startup)(struct uart_port *); void (*shutdown)(struct uart_port *); - void (*set_termios)(struct uart_port *, struct termios *new, - struct termios *old); + void (*set_termios)(struct uart_port *, struct ktermios *new, + struct ktermios *old); void (*pm)(struct uart_port *, unsigned int state, unsigned int oldstate); int (*set_wake)(struct uart_port *, unsigned int state); @@ -158,20 +210,26 @@ struct uart_icount { __u32 buf_overrun; }; +typedef unsigned int __bitwise__ upf_t; + struct uart_port { spinlock_t lock; /* port lock */ unsigned int iobase; /* in/out[bwl] */ - char *membase; /* read/write[bwl] */ + unsigned char __iomem *membase; /* read/write[bwl] */ unsigned int irq; /* irq number */ unsigned int uartclk; /* base uart clock */ - unsigned char fifosize; /* tx fifo size */ + unsigned int fifosize; /* tx fifo size */ unsigned char x_char; /* xon/xoff char */ unsigned char regshift; /* reg offset shift */ unsigned char iotype; /* io access style */ + unsigned char unused1; #define UPIO_PORT (0) #define UPIO_HUB6 (1) #define UPIO_MEM (2) +#define UPIO_MEM32 (3) +#define UPIO_AU (4) /* Au1x00 type IO */ +#define UPIO_TSI (5) /* Tsi108/109 type IO */ unsigned int read_status_mask; /* driver specific */ unsigned int ignore_status_mask; /* driver specific */ @@ -183,37 +241,35 @@ struct uart_port { unsigned long sysrq; /* sysrq timeout */ #endif - unsigned int flags; - -#define UPF_FOURPORT (1 << 1) -#define UPF_SAK (1 << 2) -#define UPF_SPD_MASK (0x1030) -#define UPF_SPD_HI (0x0010) -#define UPF_SPD_VHI (0x0020) -#define UPF_SPD_CUST (0x0030) -#define UPF_SPD_SHI (0x1000) -#define UPF_SPD_WARP (0x1010) -#define UPF_SKIP_TEST (1 << 6) -#define UPF_AUTO_IRQ (1 << 7) -#define UPF_HARDPPS_CD (1 << 11) -#define UPF_LOW_LATENCY (1 << 13) -#define UPF_BUGGY_UART (1 << 14) -#define UPF_AUTOPROBE (1 << 15) -#define UPF_MAGIC_MULTIPLIER (1 << 16) -#define UPF_BOOT_ONLYMCA (1 << 22) -#define UPF_CONS_FLOW (1 << 23) -#define UPF_SHARE_IRQ (1 << 24) -#define UPF_BOOT_AUTOCONF (1 << 28) -#define UPF_RESOURCES (1 << 30) -#define UPF_IOREMAP (1 << 31) - -#define UPF_CHANGE_MASK (0x17fff) -#define UPF_USR_MASK (UPF_SPD_MASK|UPF_LOW_LATENCY) + upf_t flags; + +#define UPF_FOURPORT ((__force upf_t) (1 << 1)) +#define UPF_SAK ((__force upf_t) (1 << 2)) +#define UPF_SPD_MASK ((__force upf_t) (0x1030)) +#define UPF_SPD_HI ((__force upf_t) (0x0010)) +#define UPF_SPD_VHI ((__force upf_t) (0x0020)) +#define UPF_SPD_CUST ((__force upf_t) (0x0030)) +#define UPF_SPD_SHI ((__force upf_t) (0x1000)) +#define UPF_SPD_WARP ((__force upf_t) (0x1010)) +#define UPF_SKIP_TEST ((__force upf_t) (1 << 6)) +#define UPF_AUTO_IRQ ((__force upf_t) (1 << 7)) +#define UPF_HARDPPS_CD ((__force upf_t) (1 << 11)) +#define UPF_LOW_LATENCY ((__force upf_t) (1 << 13)) +#define UPF_BUGGY_UART ((__force upf_t) (1 << 14)) +#define UPF_MAGIC_MULTIPLIER ((__force upf_t) (1 << 16)) +#define UPF_CONS_FLOW ((__force upf_t) (1 << 23)) +#define UPF_SHARE_IRQ ((__force upf_t) (1 << 24)) +#define UPF_BOOT_AUTOCONF ((__force upf_t) (1 << 28)) +#define UPF_DEAD ((__force upf_t) (1 << 30)) +#define UPF_IOREMAP ((__force upf_t) (1 << 31)) + +#define UPF_CHANGE_MASK ((__force upf_t) (0x17fff)) +#define UPF_USR_MASK ((__force upf_t) (UPF_SPD_MASK|UPF_LOW_LATENCY)) unsigned int mctrl; /* current modem ctrl settings */ unsigned int timeout; /* character-based timeout */ unsigned int type; /* port type */ - struct uart_ops *ops; + const struct uart_ops *ops; unsigned int custom_divisor; unsigned int line; /* port index */ unsigned long mapbase; /* for ioremap */ @@ -228,21 +284,24 @@ struct uart_port { * within. */ struct uart_state { - unsigned int close_delay; - unsigned int closing_wait; + unsigned int close_delay; /* msec */ + unsigned int closing_wait; /* msec */ #define USF_CLOSING_WAIT_INF (0) -#define USF_CLOSING_WAIT_NONE (65535) +#define USF_CLOSING_WAIT_NONE (~0U) int count; int pm_state; struct uart_info *info; struct uart_port *port; - struct semaphore sem; + struct mutex mutex; }; -#define UART_XMIT_SIZE 1024 +#define UART_XMIT_SIZE PAGE_SIZE + +typedef unsigned int __bitwise__ uif_t; + /* * This is the state information which is only valid when the port * is open; it may be freed by the core driver once the device has @@ -252,20 +311,17 @@ struct uart_state { struct uart_info { struct tty_struct *tty; struct circ_buf xmit; - unsigned int flags; + uif_t flags; /* - * These are the flags that specific to info->flags, and reflect our - * internal state. They can not be accessed via port->flags. Low - * level drivers must not change these, but may query them instead. + * Definitions for info->flags. These are _private_ to serial_core, and + * are specific to this structure. They may be queried by low level drivers. */ -#define UIF_CHECK_CD (1 << 25) -#define UIF_CTS_FLOW (1 << 26) -#define UIF_NORMAL_ACTIVE (1 << 29) -#define UIF_INITIALIZED (1 << 31) - - unsigned char *tmpbuf; - struct semaphore tmpbuf_sem; +#define UIF_CHECK_CD ((__force uif_t) (1 << 25)) +#define UIF_CTS_FLOW ((__force uif_t) (1 << 26)) +#define UIF_NORMAL_ACTIVE ((__force uif_t) (1 << 29)) +#define UIF_INITIALIZED ((__force uif_t) (1 << 31)) +#define UIF_SUSPENDED ((__force uif_t) (1 << 30)) int blocked_open; @@ -285,7 +341,6 @@ struct uart_driver { struct module *owner; const char *driver_name; const char *dev_name; - const char *devfs_name; int major; int minor; int nr; @@ -306,8 +361,8 @@ void uart_write_wakeup(struct uart_port *port); */ void uart_update_timeout(struct uart_port *port, unsigned int cflag, unsigned int baud); -unsigned int uart_get_baud_rate(struct uart_port *port, struct termios *termios, - struct termios *old, unsigned int min, +unsigned int uart_get_baud_rate(struct uart_port *port, struct ktermios *termios, + struct ktermios *old, unsigned int min, unsigned int max); unsigned int uart_get_divisor(struct uart_port *port, unsigned int baud); @@ -321,16 +376,18 @@ void uart_parse_options(char *options, int *baud, int *parity, int *bits, int uart_set_options(struct uart_port *port, struct console *co, int baud, int parity, int bits, int flow); struct tty_driver *uart_console_device(struct console *co, int *index); +void uart_console_write(struct uart_port *port, const char *s, + unsigned int count, + void (*putchar)(struct uart_port *, int)); /* * Port/driver registration/removal */ int uart_register_driver(struct uart_driver *uart); void uart_unregister_driver(struct uart_driver *uart); -void uart_unregister_port(struct uart_driver *reg, int line); -int uart_register_port(struct uart_driver *reg, struct uart_port *port); int uart_add_one_port(struct uart_driver *reg, struct uart_port *port); int uart_remove_one_port(struct uart_driver *reg, struct uart_port *port); +int uart_match_port(struct uart_port *port1, struct uart_port *port2); /* * Power Management @@ -353,23 +410,23 @@ int uart_resume_port(struct uart_driver *reg, struct uart_port *port); /* * The following are helper functions for the low level drivers. */ -#ifdef SUPPORT_SYSRQ static inline int -uart_handle_sysrq_char(struct uart_port *port, unsigned int ch, - struct pt_regs *regs) +uart_handle_sysrq_char(struct uart_port *port, unsigned int ch) { +#ifdef SUPPORT_SYSRQ if (port->sysrq) { if (ch && time_before(jiffies, port->sysrq)) { - handle_sysrq(ch, regs, NULL); + handle_sysrq(ch, port->info->tty); port->sysrq = 0; return 1; } port->sysrq = 0; } +#endif return 0; } -#else -#define uart_handle_sysrq_char(port,ch,regs) (0) +#ifndef SUPPORT_SYSRQ +#define uart_handle_sysrq_char(port,ch) uart_handle_sysrq_char(port, 0) #endif /* @@ -387,7 +444,7 @@ static inline int uart_handle_break(struct uart_port *port) port->sysrq = 0; } #endif - if (info->flags & UPF_SAK) + if (port->flags & UPF_SAK) do_SAK(info->tty); return 0; } @@ -434,18 +491,37 @@ uart_handle_cts_change(struct uart_port *port, unsigned int status) if (tty->hw_stopped) { if (status) { tty->hw_stopped = 0; - port->ops->start_tx(port, 0); + port->ops->start_tx(port); uart_write_wakeup(port); } } else { if (!status) { tty->hw_stopped = 1; - port->ops->stop_tx(port, 0); + port->ops->stop_tx(port); } } } } +#include + +static inline void +uart_insert_char(struct uart_port *port, unsigned int status, + unsigned int overrun, unsigned int ch, unsigned int flag) +{ + struct tty_struct *tty = port->info->tty; + + if ((status & port->ignore_status_mask & ~overrun) == 0) + tty_insert_flip_char(tty, ch, flag); + + /* + * Overrun is special. Since it's reported immediately, + * it doesn't affect the current character. + */ + if (status & ~port->ignore_status_mask & overrun) + tty_insert_flip_char(tty, 0, TTY_OVERRUN); +} + /* * UART_ENABLE_MS - determine if port should enable modem status irqs */ @@ -454,3 +530,5 @@ uart_handle_cts_change(struct uart_port *port, unsigned int status) !((cflag) & CLOCAL)) #endif + +#endif /* LINUX_SERIAL_CORE_H */