diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/char/serial.c | 66 |
1 files changed, 44 insertions, 22 deletions
diff --git a/drivers/char/serial.c b/drivers/char/serial.c index c25e24057..5a94d2fee 100644 --- a/drivers/char/serial.c +++ b/drivers/char/serial.c @@ -3305,13 +3305,13 @@ void cleanup_module(void) /* * Wait for transmitter & holding register to empty */ -static inline void wait_for_xmitr(struct serial_state *ser) +static inline void wait_for_xmitr(struct async_struct *info) { int lsr; unsigned int tmout = 1000000; do { - lsr = inb(ser->port + UART_LSR); + lsr = serial_inp(info, UART_LSR); if (--tmout == 0) break; } while ((lsr & BOTH_EMPTY) != BOTH_EMPTY); } @@ -3326,28 +3326,36 @@ static void serial_console_write(struct console *co, const char *s, struct serial_state *ser; int ier; unsigned i; + struct async_struct scr_info; /* serial_{in,out} because HUB6 */ ser = rs_table + co->index; + scr_info.magic = SERIAL_MAGIC; + scr_info.port = ser->port; + scr_info.flags = ser->flags; +#ifdef CONFIG_HUB6 + scr_info.hub6 = state->hub6; +#endif + /* * First save the IER then disable the interrupts */ - ier = inb(ser->port + UART_IER); - outb(0x00, ser->port + UART_IER); + ier = serial_inp(&scr_info, UART_IER); + serial_outp(&scr_info, UART_IER, 0x00); /* * Now, do each character */ for (i = 0; i < count; i++, s++) { - wait_for_xmitr(ser); + wait_for_xmitr(&scr_info); /* * Send the character out. * If a LF, also do CR... */ - outb(*s, ser->port + UART_TX); + serial_outp(&scr_info, UART_TX, *s); if (*s == 10) { - wait_for_xmitr(ser); - outb(13, ser->port + UART_TX); + wait_for_xmitr(&scr_info); + serial_outp(&scr_info, UART_TX, 13); } } @@ -3355,8 +3363,8 @@ static void serial_console_write(struct console *co, const char *s, * Finally, Wait for transmitter & holding register to empty * and restore the IER */ - wait_for_xmitr(ser); - outb(ier, ser->port + UART_IER); + wait_for_xmitr(&scr_info); + serial_outp(&scr_info, UART_IER, ier); } /* @@ -3368,26 +3376,33 @@ static int serial_console_wait_key(struct console *co) int ier; int lsr; int c; + struct async_struct scr_info; /* serial_{in,out} because HUB6 */ ser = rs_table + co->index; + scr_info.magic = SERIAL_MAGIC; + scr_info.port = ser->port; + scr_info.flags = ser->flags; +#ifdef CONFIG_HUB6 + scr_info.hub6 = state->hub6; +#endif /* * First save the IER then disable the interrupts so * that the real driver for the port does not get the * character. */ - ier = inb(ser->port + UART_IER); - outb(0x00, ser->port + UART_IER); + ier = serial_inp(&scr_info, UART_IER); + serial_outp(&scr_info, UART_IER, 0x00); do { - lsr = inb(ser->port + UART_LSR); + lsr = serial_inp(&scr_info, UART_LSR); } while (!(lsr & UART_LSR_DR)); - c = inb(ser->port + UART_RX); + c = serial_inp(&scr_info, UART_RX); /* * Restore the interrupts */ - outb(ier, ser->port + UART_IER); + serial_outp(&scr_info, UART_IER, ier); return c; } @@ -3413,6 +3428,7 @@ __initfunc(static int serial_console_setup(struct console *co, char *options)) int cflag = CREAD | HUPCL | CLOCAL; int quot = 0; char *s; + struct async_struct scr_info; /* serial_{in,out} because HUB6 */ if (options) { baud = simple_strtoul(options, NULL, 10); @@ -3476,6 +3492,12 @@ __initfunc(static int serial_console_setup(struct console *co, char *options)) * Divisor, bytesize and parity */ ser = rs_table + co->index; + scr_info.magic = SERIAL_MAGIC; + scr_info.port = ser->port; + scr_info.flags = ser->flags; +#ifdef CONFIG_HUB6 + scr_info.hub6 = state->hub6; +#endif quot = ser->baud_base / baud; cval = cflag & (CSIZE | CSTOPB); #if defined(__powerpc__) || defined(__alpha__) @@ -3492,17 +3514,17 @@ __initfunc(static int serial_console_setup(struct console *co, char *options)) * Disable UART interrupts, set DTR and RTS high * and set speed. */ - outb(cval | UART_LCR_DLAB, ser->port + UART_LCR); /* set DLAB */ - outb(quot & 0xff, ser->port + UART_DLL); /* LS of divisor */ - outb(quot >> 8, ser->port + UART_DLM); /* MS of divisor */ - outb(cval, ser->port + UART_LCR); /* reset DLAB */ - outb(0, ser->port + UART_IER); - outb(UART_MCR_DTR | UART_MCR_RTS, ser->port + UART_MCR); + serial_outp(&scr_info, UART_LCR, cval | UART_LCR_DLAB); /* set DLAB */ + serial_outp(&scr_info, UART_DLL, quot & 0xff); /* LS of divisor */ + serial_outp(&scr_info, UART_DLM, quot >> 8); /* MS of divisor */ + serial_outp(&scr_info, UART_LCR, cval); /* reset DLAB */ + serial_outp(&scr_info, UART_IER, 0); + serial_outp(&scr_info, UART_MCR, UART_MCR_DTR | UART_MCR_RTS); /* * If we read 0xff from the LSR, there is no UART here. */ - if (inb(ser->port + UART_LSR) == 0xff) + if (serial_inp(&scr_info, UART_LSR) == 0xff) return -1; return 0; } |