diff options
Diffstat (limited to 'drivers/serial')
35 files changed, 673 insertions, 248 deletions
diff --git a/drivers/serial/68360serial.c b/drivers/serial/68360serial.c index 2aa6bfe8fdb..f5946360187 100644 --- a/drivers/serial/68360serial.c +++ b/drivers/serial/68360serial.c @@ -51,6 +51,7 @@ extern int kgdb_output_string (const char* s, unsigned int count); /* #ifdef CONFIG_SERIAL_CONSOLE */ /* This seems to be a post 2.0 thing - mles */ #include <linux/console.h> +#include <linux/jiffies.h> /* this defines the index into rs_table for the port to use */ @@ -1729,7 +1730,7 @@ static void rs_360_wait_until_sent(struct tty_struct *tty, int timeout) msleep_interruptible(jiffies_to_msecs(char_time)); if (signal_pending(current)) break; - if (timeout && ((orig_jiffies + timeout) < jiffies)) + if (timeout && (time_after(jiffies, orig_jiffies + timeout))) break; /* The 'tx_cur' is really the next buffer to send. We * have to back up to the previous BD and wait for it diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c index 77f7a7f0646..ea41f262645 100644 --- a/drivers/serial/8250.c +++ b/drivers/serial/8250.c @@ -1740,6 +1740,60 @@ static inline void wait_for_xmitr(struct uart_8250_port *up, int bits) } } +#ifdef CONFIG_CONSOLE_POLL +/* + * Console polling routines for writing and reading from the uart while + * in an interrupt or debug context. + */ + +static int serial8250_get_poll_char(struct uart_port *port) +{ + struct uart_8250_port *up = (struct uart_8250_port *)port; + unsigned char lsr = serial_inp(up, UART_LSR); + + while (!(lsr & UART_LSR_DR)) + lsr = serial_inp(up, UART_LSR); + + return serial_inp(up, UART_RX); +} + + +static void serial8250_put_poll_char(struct uart_port *port, + unsigned char c) +{ + unsigned int ier; + struct uart_8250_port *up = (struct uart_8250_port *)port; + + /* + * First save the IER then disable the interrupts + */ + ier = serial_in(up, UART_IER); + if (up->capabilities & UART_CAP_UUE) + serial_out(up, UART_IER, UART_IER_UUE); + else + serial_out(up, UART_IER, 0); + + wait_for_xmitr(up, BOTH_EMPTY); + /* + * Send the character out. + * If a LF, also do CR... + */ + serial_out(up, UART_TX, c); + if (c == 10) { + wait_for_xmitr(up, BOTH_EMPTY); + serial_out(up, UART_TX, 13); + } + + /* + * Finally, wait for transmitter to become empty + * and restore the IER + */ + wait_for_xmitr(up, BOTH_EMPTY); + serial_out(up, UART_IER, ier); +} + +#endif /* CONFIG_CONSOLE_POLL */ + static int serial8250_startup(struct uart_port *port) { struct uart_8250_port *up = (struct uart_8250_port *)port; @@ -1814,6 +1868,7 @@ static int serial8250_startup(struct uart_port *port) } if (is_real_interrupt(up->port.irq)) { + unsigned char iir1; /* * Test for UARTs that do not reassert THRE when the * transmitter is idle and the interrupt has already @@ -1827,7 +1882,7 @@ static int serial8250_startup(struct uart_port *port) wait_for_xmitr(up, UART_LSR_THRE); serial_out_sync(up, UART_IER, UART_IER_THRI); udelay(1); /* allow THRE to set */ - serial_in(up, UART_IIR); + iir1 = serial_in(up, UART_IIR); serial_out(up, UART_IER, 0); serial_out_sync(up, UART_IER, UART_IER_THRI); udelay(1); /* allow a working UART time to re-assert THRE */ @@ -1840,7 +1895,7 @@ static int serial8250_startup(struct uart_port *port) * If the interrupt is not reasserted, setup a timer to * kick the UART on a regular basis. */ - if (iir & UART_IIR_NO_INT) { + if (!(iir1 & UART_IIR_NO_INT) && (iir & UART_IIR_NO_INT)) { pr_debug("ttyS%d - using backup timer\n", port->line); up->timer.function = serial8250_backup_timeout; up->timer.data = (unsigned long)up; @@ -2174,7 +2229,9 @@ serial8250_set_termios(struct uart_port *port, struct ktermios *termios, } serial8250_set_mctrl(&up->port, up->port.mctrl); spin_unlock_irqrestore(&up->port.lock, flags); - tty_termios_encode_baud_rate(termios, baud, baud); + /* Don't rewrite B0 */ + if (tty_termios_baud_rate(termios)) + tty_termios_encode_baud_rate(termios, baud, baud); } static void @@ -2386,6 +2443,10 @@ static struct uart_ops serial8250_pops = { .request_port = serial8250_request_port, .config_port = serial8250_config_port, .verify_port = serial8250_verify_port, +#ifdef CONFIG_CONSOLE_POLL + .poll_get_char = serial8250_get_poll_char, + .poll_put_char = serial8250_put_poll_char, +#endif }; static struct uart_8250_port serial8250_ports[UART_NR]; diff --git a/drivers/serial/8250_au1x00.c b/drivers/serial/8250_au1x00.c deleted file mode 100644 index 58015fd14be..00000000000 --- a/drivers/serial/8250_au1x00.c +++ /dev/null @@ -1,100 +0,0 @@ -/* - * Serial Device Initialisation for Au1x00 - * - * (C) Copyright Embedded Alley Solutions, Inc 2005 - * Author: Pantelis Antoniou <pantelis@embeddedalley.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - */ - -#include <linux/errno.h> -#include <linux/init.h> -#include <linux/interrupt.h> -#include <linux/ioport.h> -#include <linux/module.h> -#include <linux/serial_core.h> -#include <linux/signal.h> -#include <linux/slab.h> -#include <linux/types.h> - -#include <linux/serial_8250.h> - -#include <asm/mach-au1x00/au1000.h> - -#include "8250.h" - -#define PORT(_base, _irq) \ - { \ - .iobase = _base, \ - .membase = (void __iomem *)_base,\ - .mapbase = CPHYSADDR(_base), \ - .irq = _irq, \ - .uartclk = 0, /* filled */ \ - .regshift = 2, \ - .iotype = UPIO_AU, \ - .flags = UPF_SKIP_TEST \ - } - -static struct plat_serial8250_port au1x00_data[] = { -#if defined(CONFIG_SOC_AU1000) - PORT(UART0_ADDR, AU1000_UART0_INT), - PORT(UART1_ADDR, AU1000_UART1_INT), - PORT(UART2_ADDR, AU1000_UART2_INT), - PORT(UART3_ADDR, AU1000_UART3_INT), -#elif defined(CONFIG_SOC_AU1500) - PORT(UART0_ADDR, AU1500_UART0_INT), - PORT(UART3_ADDR, AU1500_UART3_INT), -#elif defined(CONFIG_SOC_AU1100) - PORT(UART0_ADDR, AU1100_UART0_INT), - PORT(UART1_ADDR, AU1100_UART1_INT), - /* The internal UART2 does not exist on the AU1100 processor. */ - PORT(UART3_ADDR, AU1100_UART3_INT), -#elif defined(CONFIG_SOC_AU1550) - PORT(UART0_ADDR, AU1550_UART0_INT), - PORT(UART1_ADDR, AU1550_UART1_INT), - PORT(UART3_ADDR, AU1550_UART3_INT), -#elif defined(CONFIG_SOC_AU1200) - PORT(UART0_ADDR, AU1200_UART0_INT), - PORT(UART1_ADDR, AU1200_UART1_INT), -#endif - { }, -}; - -static struct platform_device au1x00_device = { - .name = "serial8250", - .id = PLAT8250_DEV_AU1X00, - .dev = { - .platform_data = au1x00_data, - }, -}; - -static int __init au1x00_init(void) -{ - int i; - unsigned int uartclk; - - /* get uart clock */ - uartclk = get_au1x00_uart_baud_base() * 16; - - /* fill up uartclk */ - for (i = 0; au1x00_data[i].flags ; i++) - au1x00_data[i].uartclk = uartclk; - - return platform_device_register(&au1x00_device); -} - -/* XXX: Yes, I know this doesn't yet work. */ -static void __exit au1x00_exit(void) -{ - platform_device_unregister(&au1x00_device); -} - -module_init(au1x00_init); -module_exit(au1x00_exit); - -MODULE_AUTHOR("Pantelis Antoniou <pantelis@embeddedalley.com>"); -MODULE_DESCRIPTION("8250 serial probe module for Au1x000 cards"); -MODULE_LICENSE("GPL"); diff --git a/drivers/serial/8250_pci.c b/drivers/serial/8250_pci.c index f97224ce59d..6e57382b913 100644 --- a/drivers/serial/8250_pci.c +++ b/drivers/serial/8250_pci.c @@ -775,7 +775,7 @@ pci_default_setup(struct serial_private *priv, struct pciserial_board *board, * This list is ordered alphabetically by vendor then device. * Specific entries must come before more generic entries. */ -static struct pci_serial_quirk pci_serial_quirks[] = { +static struct pci_serial_quirk pci_serial_quirks[] __refdata = { /* * ADDI-DATA GmbH communication cards <info@addi-data.com> */ diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig index cf627cd1b4c..34b809e3b59 100644 --- a/drivers/serial/Kconfig +++ b/drivers/serial/Kconfig @@ -262,12 +262,12 @@ config SERIAL_8250_ACORN cards. If unsure, say N. config SERIAL_8250_AU1X00 - bool "AU1X00 serial port support" + bool "Au1x00 serial port support" depends on SERIAL_8250 != n && SOC_AU1X00 help - If you have an Au1x00 board and want to use the serial port, say Y - to this option. The driver can handle 1 or 2 serial ports. - If unsure, say N. + If you have an Au1x00 SOC based board and want to use the serial port, + say Y to this option. The driver can handle up to 4 serial ports, + depending on the SOC. If unsure, say N. config SERIAL_8250_RM9K bool "Support for MIPS RM9xxx integrated serial port" @@ -961,6 +961,9 @@ config SERIAL_CORE config SERIAL_CORE_CONSOLE bool +config CONSOLE_POLL + bool + config SERIAL_68328 bool "68328 serial support" depends on M68328 || M68EZ328 || M68VZ328 diff --git a/drivers/serial/Makefile b/drivers/serial/Makefile index 640cfe44a56..f02ff9fad01 100644 --- a/drivers/serial/Makefile +++ b/drivers/serial/Makefile @@ -20,7 +20,6 @@ obj-$(CONFIG_SERIAL_8250_BOCA) += 8250_boca.o obj-$(CONFIG_SERIAL_8250_EXAR_ST16C554) += 8250_exar_st16c554.o obj-$(CONFIG_SERIAL_8250_HUB6) += 8250_hub6.o obj-$(CONFIG_SERIAL_8250_MCA) += 8250_mca.o -obj-$(CONFIG_SERIAL_8250_AU1X00) += 8250_au1x00.o obj-$(CONFIG_SERIAL_AMBA_PL010) += amba-pl010.o obj-$(CONFIG_SERIAL_AMBA_PL011) += amba-pl011.o obj-$(CONFIG_SERIAL_CLPS711X) += clps711x.o @@ -66,4 +65,5 @@ obj-$(CONFIG_SERIAL_UARTLITE) += uartlite.o obj-$(CONFIG_SERIAL_NETX) += netx-serial.o obj-$(CONFIG_SERIAL_OF_PLATFORM) += of_serial.o obj-$(CONFIG_SERIAL_KS8695) += serial_ks8695.o +obj-$(CONFIG_KGDB_SERIAL_CONSOLE) += kgdboc.o obj-$(CONFIG_SERIAL_QE) += ucc_uart.o diff --git a/drivers/serial/amba-pl011.c b/drivers/serial/amba-pl011.c index 40604a09292..08adc1de4a7 100644 --- a/drivers/serial/amba-pl011.c +++ b/drivers/serial/amba-pl011.c @@ -314,6 +314,32 @@ static void pl011_break_ctl(struct uart_port *port, int break_state) spin_unlock_irqrestore(&uap->port.lock, flags); } +#ifdef CONFIG_CONSOLE_POLL +static int pl010_get_poll_char(struct uart_port *port) +{ + struct uart_amba_port *uap = (struct uart_amba_port *)port; + unsigned int status; + + do { + status = readw(uap->port.membase + UART01x_FR); + } while (status & UART01x_FR_RXFE); + + return readw(uap->port.membase + UART01x_DR); +} + +static void pl010_put_poll_char(struct uart_port *port, + unsigned char ch) +{ + struct uart_amba_port *uap = (struct uart_amba_port *)port; + + while (readw(uap->port.membase + UART01x_FR) & UART01x_FR_TXFF) + barrier(); + + writew(ch, uap->port.membase + UART01x_DR); +} + +#endif /* CONFIG_CONSOLE_POLL */ + static int pl011_startup(struct uart_port *port) { struct uart_amba_port *uap = (struct uart_amba_port *)port; @@ -572,6 +598,10 @@ static struct uart_ops amba_pl011_pops = { .request_port = pl010_request_port, .config_port = pl010_config_port, .verify_port = pl010_verify_port, +#ifdef CONFIG_CONSOLE_POLL + .poll_get_char = pl010_get_poll_char, + .poll_put_char = pl010_put_poll_char, +#endif }; static struct uart_amba_port *amba_ports[UART_NR]; diff --git a/drivers/serial/atmel_serial.c b/drivers/serial/atmel_serial.c index 430997e33fc..c065a704a93 100644 --- a/drivers/serial/atmel_serial.c +++ b/drivers/serial/atmel_serial.c @@ -96,7 +96,6 @@ /* PDC registers */ #define UART_PUT_PTCR(port,v) __raw_writel(v, (port)->membase + ATMEL_PDC_PTCR) -#define UART_GET_TCR(port) __raw_readl((port)->membase + ATMEL_PDC_TCR) #define UART_GET_PTSR(port) __raw_readl((port)->membase + ATMEL_PDC_PTSR) #define UART_PUT_RPR(port,v) __raw_writel(v, (port)->membase + ATMEL_PDC_RPR) @@ -1577,3 +1576,4 @@ module_exit(atmel_serial_exit); MODULE_AUTHOR("Rick Bronson"); MODULE_DESCRIPTION("Atmel AT91 / AT32 serial port driver"); MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:atmel_usart"); diff --git a/drivers/serial/bfin_5xx.c b/drivers/serial/bfin_5xx.c index 0aa345b9a38..5f55534a290 100644 --- a/drivers/serial/bfin_5xx.c +++ b/drivers/serial/bfin_5xx.c @@ -151,7 +151,8 @@ void kgdb_put_debug_char(int chr) { struct bfin_serial_port *uart; - if (CONFIG_KGDB_UART_PORT<0 || CONFIG_KGDB_UART_PORT>=NR_PORTS) + if (CONFIG_KGDB_UART_PORT < 0 + || CONFIG_KGDB_UART_PORT >= BFIN_UART_NR_PORTS) uart = &bfin_serial_ports[0]; else uart = &bfin_serial_ports[CONFIG_KGDB_UART_PORT]; @@ -173,7 +174,8 @@ int kgdb_get_debug_char(void) struct bfin_serial_port *uart; unsigned char chr; - if (CONFIG_KGDB_UART_PORT<0 || CONFIG_KGDB_UART_PORT>=NR_PORTS) + if (CONFIG_KGDB_UART_PORT < 0 + || CONFIG_KGDB_UART_PORT >= BFIN_UART_NR_PORTS) uart = &bfin_serial_ports[0]; else uart = &bfin_serial_ports[CONFIG_KGDB_UART_PORT]; @@ -192,7 +194,7 @@ int kgdb_get_debug_char(void) } #endif -#if ANOMALY_05000230 && defined(CONFIG_SERIAL_BFIN_PIO) +#if ANOMALY_05000363 && defined(CONFIG_SERIAL_BFIN_PIO) # define UART_GET_ANOMALY_THRESHOLD(uart) ((uart)->anomaly_threshold) # define UART_SET_ANOMALY_THRESHOLD(uart, v) ((uart)->anomaly_threshold = (v)) #else @@ -237,7 +239,7 @@ static void bfin_serial_rx_chars(struct bfin_serial_port *uart) } #endif - if (ANOMALY_05000230) { + if (ANOMALY_05000363) { /* The BF533 (and BF561) family of processors have a nice anomaly * where they continuously generate characters for a "single" break. * We have to basically ignore this flood until the "next" valid @@ -249,9 +251,6 @@ static void bfin_serial_rx_chars(struct bfin_serial_port *uart) * timeout was picked as it must absolutely be larger than 1 * character time +/- some percent. So 1.5 sounds good. All other * Blackfin families operate properly. Woo. - * Note: While Anomaly 05000230 does not directly address this, - * the changes that went in for it also fixed this issue. - * That anomaly was fixed in 0.5+ silicon. I like bunnies. */ if (anomaly_start.tv_sec) { struct timeval curr; @@ -285,7 +284,7 @@ static void bfin_serial_rx_chars(struct bfin_serial_port *uart) } if (status & BI) { - if (ANOMALY_05000230) + if (ANOMALY_05000363) if (bfin_revid() < 5) do_gettimeofday(&anomaly_start); uart->port.icount.brk++; @@ -507,8 +506,7 @@ void bfin_serial_rx_dma_timeout(struct bfin_serial_port *uart) uart->rx_dma_buf.tail = uart->rx_dma_buf.head; } - uart->rx_dma_timer.expires = jiffies + DMA_RX_FLUSH_JIFFIES; - add_timer(&(uart->rx_dma_timer)); + mod_timer(&(uart->rx_dma_timer), jiffies + DMA_RX_FLUSH_JIFFIES); } static irqreturn_t bfin_serial_dma_tx_int(int irq, void *dev_id) @@ -551,9 +549,7 @@ static irqreturn_t bfin_serial_dma_rx_int(int irq, void *dev_id) clear_dma_irqstat(uart->rx_dma_channel); spin_unlock(&uart->port.lock); - del_timer(&(uart->rx_dma_timer)); - uart->rx_dma_timer.expires = jiffies; - add_timer(&(uart->rx_dma_timer)); + mod_timer(&(uart->rx_dma_timer), jiffies); return IRQ_HANDLED; } @@ -749,7 +745,7 @@ bfin_serial_set_termios(struct uart_port *port, struct ktermios *termios, struct bfin_serial_port *uart = (struct bfin_serial_port *)port; unsigned long flags; unsigned int baud, quot; - unsigned short val, ier, lsr, lcr = 0; + unsigned short val, ier, lcr = 0; switch (termios->c_cflag & CSIZE) { case CS8: @@ -806,10 +802,6 @@ bfin_serial_set_termios(struct uart_port *port, struct ktermios *termios, UART_SET_ANOMALY_THRESHOLD(uart, USEC_PER_SEC / baud * 15); - do { - lsr = UART_GET_LSR(uart); - } while (!(lsr & TEMT)); - /* Disable UART */ ier = UART_GET_IER(uart); #ifdef CONFIG_BF54x @@ -900,6 +892,31 @@ bfin_serial_verify_port(struct uart_port *port, struct serial_struct *ser) return 0; } +/* + * Enable the IrDA function if tty->ldisc.num is N_IRDA. + * In other cases, disable IrDA function. + */ +static void bfin_set_ldisc(struct tty_struct *tty) +{ + int line = tty->index; + unsigned short val; + + if (line >= tty->driver->num) + return; + + switch (tty->ldisc.num) { + case N_IRDA: + val = UART_GET_GCTL(&bfin_serial_ports[line]); + val |= (IREN | RPOLC); + UART_PUT_GCTL(&bfin_serial_ports[line], val); + break; + default: + val = UART_GET_GCTL(&bfin_serial_ports[line]); + val &= ~(IREN | RPOLC); + UART_PUT_GCTL(&bfin_serial_ports[line], val); + } +} + static struct uart_ops bfin_serial_pops = { .tx_empty = bfin_serial_tx_empty, .set_mctrl = bfin_serial_set_mctrl, @@ -1172,7 +1189,7 @@ static struct uart_driver bfin_serial_reg = { .dev_name = BFIN_SERIAL_NAME, .major = BFIN_SERIAL_MAJOR, .minor = BFIN_SERIAL_MINOR, - .nr = NR_PORTS, + .nr = BFIN_UART_NR_PORTS, .cons = BFIN_SERIAL_CONSOLE, }; @@ -1243,6 +1260,7 @@ static struct platform_driver bfin_serial_driver = { .resume = bfin_serial_resume, .driver = { .name = "bfin-uart", + .owner = THIS_MODULE, }, }; @@ -1260,6 +1278,7 @@ static int __init bfin_serial_init(void) ret = uart_register_driver(&bfin_serial_reg); if (ret == 0) { + bfin_serial_reg.tty_driver->set_ldisc = bfin_set_ldisc; ret = platform_driver_register(&bfin_serial_driver); if (ret) { pr_debug("uart register failed\n"); @@ -1301,3 +1320,4 @@ MODULE_AUTHOR("Aubrey.Li <aubrey.li@analog.com>"); MODULE_DESCRIPTION("Blackfin generic serial port driver"); MODULE_LICENSE("GPL"); MODULE_ALIAS_CHARDEV_MAJOR(BFIN_SERIAL_MAJOR); +MODULE_ALIAS("platform:bfin-uart"); diff --git a/drivers/serial/cpm_uart/cpm_uart.h b/drivers/serial/cpm_uart/cpm_uart.h index 32b9737759c..0cc39f82d7c 100644 --- a/drivers/serial/cpm_uart/cpm_uart.h +++ b/drivers/serial/cpm_uart/cpm_uart.h @@ -92,6 +92,9 @@ extern struct uart_cpm_port cpm_uart_ports[UART_NR]; /* these are located in their respective files */ void cpm_line_cr_cmd(struct uart_cpm_port *port, int cmd); +void __iomem *cpm_uart_map_pram(struct uart_cpm_port *port, + struct device_node *np); +void cpm_uart_unmap_pram(struct uart_cpm_port *port, void __iomem *pram); 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); diff --git a/drivers/serial/cpm_uart/cpm_uart_core.c b/drivers/serial/cpm_uart/cpm_uart_core.c index 236af9d3385..a638ba0679a 100644 --- a/drivers/serial/cpm_uart/cpm_uart_core.c +++ b/drivers/serial/cpm_uart/cpm_uart_core.c @@ -966,24 +966,23 @@ static int cpm_uart_init_port(struct device_node *np, if (!mem) return -ENOMEM; - pram = of_iomap(np, 1); - if (!pram) { - ret = -ENOMEM; - goto out_mem; - } - if (of_device_is_compatible(np, "fsl,cpm1-scc-uart") || of_device_is_compatible(np, "fsl,cpm2-scc-uart")) { pinfo->sccp = mem; - pinfo->sccup = pram; + pinfo->sccup = pram = cpm_uart_map_pram(pinfo, np); } else if (of_device_is_compatible(np, "fsl,cpm1-smc-uart") || of_device_is_compatible(np, "fsl,cpm2-smc-uart")) { pinfo->flags |= FLAG_SMC; pinfo->smcp = mem; - pinfo->smcup = pram; + pinfo->smcup = pram = cpm_uart_map_pram(pinfo, np); } else { ret = -ENODEV; - goto out_pram; + goto out_mem; + } + + if (!pram) { + ret = -ENOMEM; + goto out_mem; } pinfo->tx_nrfifos = TX_NUM_FIFO; @@ -1007,7 +1006,7 @@ static int cpm_uart_init_port(struct device_node *np, return cpm_uart_request_port(&pinfo->port); out_pram: - iounmap(pram); + cpm_uart_unmap_pram(pinfo, pram); out_mem: iounmap(mem); return ret; diff --git a/drivers/serial/cpm_uart/cpm_uart_cpm1.c b/drivers/serial/cpm_uart/cpm_uart_cpm1.c index 6ea0366e26a..74f1432bb24 100644 --- a/drivers/serial/cpm_uart/cpm_uart_cpm1.c +++ b/drivers/serial/cpm_uart/cpm_uart_cpm1.c @@ -45,6 +45,8 @@ #include <linux/serial_core.h> #include <linux/kernel.h> +#include <linux/of.h> + #include "cpm_uart.h" /**************************************************************/ @@ -54,6 +56,18 @@ void cpm_line_cr_cmd(struct uart_cpm_port *port, int cmd) { cpm_command(port->command, cmd); } + +void __iomem *cpm_uart_map_pram(struct uart_cpm_port *port, + struct device_node *np) +{ + return of_iomap(np, 1); +} + +void cpm_uart_unmap_pram(struct uart_cpm_port *port, void __iomem *pram) +{ + iounmap(pram); +} + #else void cpm_line_cr_cmd(struct uart_cpm_port *port, int cmd) { diff --git a/drivers/serial/cpm_uart/cpm_uart_cpm2.c b/drivers/serial/cpm_uart/cpm_uart_cpm2.c index d9af06a791b..bb862e2f54c 100644 --- a/drivers/serial/cpm_uart/cpm_uart_cpm2.c +++ b/drivers/serial/cpm_uart/cpm_uart_cpm2.c @@ -41,6 +41,9 @@ #include <asm/io.h> #include <asm/irq.h> #include <asm/fs_pd.h> +#ifdef CONFIG_PPC_CPM_NEW_BINDING +#include <asm/prom.h> +#endif #include <linux/serial_core.h> #include <linux/kernel.h> @@ -54,6 +57,55 @@ void cpm_line_cr_cmd(struct uart_cpm_port *port, int cmd) { cpm_command(port->command, cmd); } + +void __iomem *cpm_uart_map_pram(struct uart_cpm_port *port, + struct device_node *np) +{ + void __iomem *pram; + unsigned long offset; + struct resource res; + unsigned long len; + + /* Don't remap parameter RAM if it has already been initialized + * during console setup. + */ + if (IS_SMC(port) && port->smcup) + return port->smcup; + else if (!IS_SMC(port) && port->sccup) + return port->sccup; + + if (of_address_to_resource(np, 1, &res)) + return NULL; + + len = 1 + res.end - res.start; + pram = ioremap(res.start, len); + if (!pram) + return NULL; + + if (!IS_SMC(port)) + return pram; + + if (len != 2) { + printk(KERN_WARNING "cpm_uart[%d]: device tree references " + "SMC pram, using boot loader/wrapper pram mapping. " + "Please fix your device tree to reference the pram " + "base register instead.\n", + port->port.line); + return pram; + } + + offset = cpm_dpalloc(PROFF_SMC_SIZE, 64); + out_be16(pram, offset); + iounmap(pram); + return cpm_muram_addr(offset); +} + +void cpm_uart_unmap_pram(struct uart_cpm_port *port, void __iomem *pram) +{ + if (!IS_SMC(port)) + iounmap(pram); +} + #else void cpm_line_cr_cmd(struct uart_cpm_port *port, int cmd) { diff --git a/drivers/serial/crisv10.c b/drivers/serial/crisv10.c index 383c4e660cd..88e7c1d5b91 100644 --- a/drivers/serial/crisv10.c +++ b/drivers/serial/crisv10.c @@ -3582,6 +3582,8 @@ rs_tiocmset(struct tty_struct *tty, struct file *file, { struct e100_serial *info = (struct e100_serial *)tty->driver_data; + lock_kernel(); + if (clear & TIOCM_RTS) e100_rts(info, 0); if (clear & TIOCM_DTR) @@ -3601,6 +3603,8 @@ rs_tiocmset(struct tty_struct *tty, struct file *file, e100_ri_out(info, 1); if (set & TIOCM_CD) e100_cd_out(info, 1); + + unlock_kernel(); return 0; } @@ -3610,6 +3614,7 @@ rs_tiocmget(struct tty_struct *tty, struct file *file) struct e100_serial *info = (struct e100_serial *)tty->driver_data; unsigned int result; + lock_kernel(); result = (!E100_RTS_GET(info) ? TIOCM_RTS : 0) | (!E100_DTR_GET(info) ? TIOCM_DTR : 0) @@ -3618,6 +3623,8 @@ rs_tiocmget(struct tty_struct *tty, struct file *file) | (!E100_CD_GET(info) ? TIOCM_CAR : 0) | (!E100_CTS_GET(info) ? TIOCM_CTS : 0); + unlock_kernel(); + #ifdef SERIAL_DEBUG_IO printk(KERN_DEBUG "ser%i: modem state: %i 0x%08X\n", info->line, result, result); diff --git a/drivers/serial/dz.c b/drivers/serial/dz.c index 116211fcd36..0dddd68b20d 100644 --- a/drivers/serial/dz.c +++ b/drivers/serial/dz.c @@ -819,7 +819,7 @@ static void dz_console_putchar(struct uart_port *uport, int ch) dz_out(dport, DZ_TCR, mask); iob(); udelay(2); - } while (loops--); + } while (--loops); if (loops) /* Cannot send otherwise. */ dz_out(dport, DZ_TDR, ch); diff --git a/drivers/serial/imx.c b/drivers/serial/imx.c index 56af1f566a4..5a375bf0ebf 100644 --- a/drivers/serial/imx.c +++ b/drivers/serial/imx.c @@ -166,15 +166,6 @@ #define SERIAL_IMX_MAJOR 204 #define MINOR_START 41 -#define NR_PORTS 2 - -#define IMX_ISR_PASS_LIMIT 256 - -/* - * This is the size of our serial port register set. - */ -#define UART_PORT_SIZE 0x100 - /* * This determines how often we check the modem status signals * for any change. They generally aren't connected to an IRQ @@ -358,66 +349,60 @@ static irqreturn_t imx_rxint(int irq, void *dev_id) struct tty_struct *tty = sport->port.info->tty; unsigned long flags, temp; - rx = readl(sport->port.membase + URXD0); spin_lock_irqsave(&sport->port.lock,flags); - do { + while (readl(sport->port.membase + USR2) & USR2_RDR) { flg = TTY_NORMAL; sport->port.icount.rx++; + rx = readl(sport->port.membase + URXD0); + temp = readl(sport->port.membase + USR2); - if( temp & USR2_BRCD ) { + if (temp & USR2_BRCD) { writel(temp | USR2_BRCD, sport->port.membase + USR2); - if(uart_handle_break(&sport->port)) - goto ignore_char; + if (uart_handle_break(&sport->port)) + continue; } if (uart_handle_sysrq_char (&sport->port, (unsigned char)rx)) - goto ignore_char; + continue; + + if (rx & (URXD_PRERR | URXD_OVRRUN | URXD_FRMERR) ) { + if (rx & URXD_PRERR) + sport->port.icount.parity++; + else if (rx & URXD_FRMERR) + sport->port.icount.frame++; + if (rx & URXD_OVRRUN) + sport->port.icount.overrun++; + + if (rx & sport->port.ignore_status_mask) { + if (++ignored > 100) + goto out; + continue; + } + + rx &= sport->port.read_status_mask; + + if (rx & URXD_PRERR) + flg = TTY_PARITY; + else if (rx & URXD_FRMERR) + flg = TTY_FRAME; + if (rx & URXD_OVRRUN) + flg = TTY_OVERRUN; - if( rx & (URXD_PRERR | URXD_OVRRUN | URXD_FRMERR) ) - goto handle_error; +#ifdef SUPPORT_SYSRQ + sport->port.sysrq = 0; +#endif + } - error_return: tty_insert_flip_char(tty, rx, flg); - - ignore_char: - rx = readl(sport->port.membase + URXD0); - } while(rx & URXD_CHARRDY); + } out: spin_unlock_irqrestore(&sport->port.lock,flags); tty_flip_buffer_push(tty); return IRQ_HANDLED; - -handle_error: - if (rx & URXD_PRERR) - sport->port.icount.parity++; - else if (rx & URXD_FRMERR) - sport->port.icount.frame++; - if (rx & URXD_OVRRUN) - sport->port.icount.overrun++; - - if (rx & sport->port.ignore_status_mask) { - if (++ignored > 100) - goto out; - goto ignore_char; - } - - rx &= sport->port.read_status_mask; - - if (rx & URXD_PRERR) - flg = TTY_PARITY; - else if (rx & URXD_FRMERR) - flg = TTY_FRAME; - if (rx & URXD_OVRRUN) - flg = TTY_OVERRUN; - -#ifdef SUPPORT_SYSRQ - sport->port.sysrq = 0; -#endif - goto error_return; } /* @@ -546,7 +531,7 @@ static int imx_startup(struct uart_port *port) writel(USR1_RTSD, sport->port.membase + USR1); temp = readl(sport->port.membase + UCR1); - temp |= (UCR1_TXMPTYEN | UCR1_RRDYEN | UCR1_RTSDEN | UCR1_UARTEN); + temp |= UCR1_RRDYEN | UCR1_RTSDEN | UCR1_UARTEN; writel(temp, sport->port.membase + UCR1); temp = readl(sport->port.membase + UCR2); @@ -731,9 +716,11 @@ static const char *imx_type(struct uart_port *port) */ static void imx_release_port(struct uart_port *port) { - struct imx_port *sport = (struct imx_port *)port; + struct platform_device *pdev = to_platform_device(port->dev); + struct resource *mmres; - release_mem_region(sport->port.mapbase, UART_PORT_SIZE); + mmres = platform_get_resource(pdev, IORESOURCE_MEM, 0); + release_mem_region(mmres->start, mmres->end - mmres->start + 1); } /* @@ -741,10 +728,18 @@ static void imx_release_port(struct uart_port *port) */ static int imx_request_port(struct uart_port *port) { - struct imx_port *sport = (struct imx_port *)port; + struct platform_device *pdev = to_platform_device(port->dev); + struct resource *mmres; + void *ret; + + mmres = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!mmres) + return -ENODEV; + + ret = request_mem_region(mmres->start, mmres->end - mmres->start + 1, + "imx-uart"); - return request_mem_region(sport->port.mapbase, UART_PORT_SIZE, - "imx-uart") != NULL ? 0 : -EBUSY; + return ret ? 0 : -EBUSY; } /* @@ -815,7 +810,7 @@ static struct imx_port imx_ports[] = { .type = PORT_IMX, .iotype = UPIO_MEM, .membase = (void *)IMX_UART1_BASE, - .mapbase = IMX_UART1_BASE, /* FIXME */ + .mapbase = 0x00206000, .irq = UART1_MINT_RX, .uartclk = 16000000, .fifosize = 32, @@ -831,7 +826,7 @@ static struct imx_port imx_ports[] = { .type = PORT_IMX, .iotype = UPIO_MEM, .membase = (void *)IMX_UART2_BASE, - .mapbase = IMX_UART2_BASE, /* FIXME */ + .mapbase = 0x00207000, .irq = UART2_MINT_RX, .uartclk = 16000000, .fifosize = 32, @@ -1090,6 +1085,7 @@ static struct platform_driver serial_imx_driver = { .resume = serial_imx_resume, .driver = { .name = "imx-uart", + .owner = THIS_MODULE, }, }; @@ -1124,3 +1120,4 @@ module_exit(imx_serial_exit); MODULE_AUTHOR("Sascha Hauer"); MODULE_DESCRIPTION("IMX generic serial port driver"); MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:imx-uart"); diff --git a/drivers/serial/kgdboc.c b/drivers/serial/kgdboc.c new file mode 100644 index 00000000000..9cf03327386 --- /dev/null +++ b/drivers/serial/kgdboc.c @@ -0,0 +1,168 @@ +/* + * Based on the same principle as kgdboe using the NETPOLL api, this + * driver uses a console polling api to implement a gdb serial inteface + * which is multiplexed on a console port. + * + * Maintainer: Jason Wessel <jason.wessel@windriver.com> + * + * 2007-2008 (c) Jason Wessel - Wind River Systems, Inc. + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ +#include <linux/kernel.h> +#include <linux/ctype.h> +#include <linux/kgdb.h> +#include <linux/tty.h> + +#define MAX_CONFIG_LEN 40 + +static struct kgdb_io kgdboc_io_ops; + +/* -1 = init not run yet, 0 = unconfigured, 1 = configured. */ +static int configured = -1; + +static char config[MAX_CONFIG_LEN]; +static struct kparam_string kps = { + .string = config, + .maxlen = MAX_CONFIG_LEN, +}; + +static struct tty_driver *kgdb_tty_driver; +static int kgdb_tty_line; + +static int kgdboc_option_setup(char *opt) +{ + if (strlen(opt) > MAX_CONFIG_LEN) { + printk(KERN_ERR "kgdboc: config string too long\n"); + return -ENOSPC; + } + strcpy(config, opt); + + return 0; +} + +__setup("kgdboc=", kgdboc_option_setup); + +static int configure_kgdboc(void) +{ + struct tty_driver *p; + int tty_line = 0; + int err; + + err = kgdboc_option_setup(config); + if (err || !strlen(config) || isspace(config[0])) + goto noconfig; + + err = -ENODEV; + + p = tty_find_polling_driver(config, &tty_line); + if (!p) + goto noconfig; + + kgdb_tty_driver = p; + kgdb_tty_line = tty_line; + + err = kgdb_register_io_module(&kgdboc_io_ops); + if (err) + goto noconfig; + + configured = 1; + + return 0; + +noconfig: + config[0] = 0; + configured = 0; + + return err; +} + +static int __init init_kgdboc(void) +{ + /* Already configured? */ + if (configured == 1) + return 0; + + return configure_kgdboc(); +} + +static void cleanup_kgdboc(void) +{ + if (configured == 1) + kgdb_unregister_io_module(&kgdboc_io_ops); +} + +static int kgdboc_get_char(void) +{ + return kgdb_tty_driver->poll_get_char(kgdb_tty_driver, kgdb_tty_line); +} + +static void kgdboc_put_char(u8 chr) +{ + kgdb_tty_driver->poll_put_char(kgdb_tty_driver, kgdb_tty_line, chr); +} + +static int param_set_kgdboc_var(const char *kmessage, struct kernel_param *kp) +{ + int len = strlen(kmessage); + + if (len >= MAX_CONFIG_LEN) { + printk(KERN_ERR "kgdboc: config string too long\n"); + return -ENOSPC; + } + + /* Only copy in the string if the init function has not run yet */ + if (configured < 0) { + strcpy(config, kmessage); + return 0; + } + + if (kgdb_connected) { + printk(KERN_ERR + "kgdboc: Cannot reconfigure while KGDB is connected.\n"); + + return -EBUSY; + } + + strcpy(config, kmessage); + /* Chop out \n char as a result of echo */ + if (config[len - 1] == '\n') + config[len - 1] = '\0'; + + if (configured == 1) + cleanup_kgdboc(); + + /* Go and configure with the new params. */ + return configure_kgdboc(); +} + +static void kgdboc_pre_exp_handler(void) +{ + /* Increment the module count when the debugger is active */ + if (!kgdb_connected) + try_module_get(THIS_MODULE); +} + +static void kgdboc_post_exp_handler(void) +{ + /* decrement the module count when the debugger detaches */ + if (!kgdb_connected) + module_put(THIS_MODULE); +} + +static struct kgdb_io kgdboc_io_ops = { + .name = "kgdboc", + .read_char = kgdboc_get_char, + .write_char = kgdboc_put_char, + .pre_exception = kgdboc_pre_exp_handler, + .post_exception = kgdboc_post_exp_handler, +}; + +module_init(init_kgdboc); +module_exit(cleanup_kgdboc); +module_param_call(kgdboc, param_set_kgdboc_var, param_get_string, &kps, 0644); +MODULE_PARM_DESC(kgdboc, "<serial_device>[,baud]"); +MODULE_DESCRIPTION("KGDB Console TTY Driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/serial/mcf.c b/drivers/serial/mcf.c index e76fc72c9b3..7e164e0cd21 100644 --- a/drivers/serial/mcf.c +++ b/drivers/serial/mcf.c @@ -649,5 +649,6 @@ module_exit(mcf_exit); MODULE_AUTHOR("Greg Ungerer <gerg@snapgear.com>"); MODULE_DESCRIPTION("Freescale ColdFire UART driver"); MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:mcfuart"); /****************************************************************************/ diff --git a/drivers/serial/mcfserial.c b/drivers/serial/mcfserial.c index 99af084c7ce..ddd3aa50d4a 100644 --- a/drivers/serial/mcfserial.c +++ b/drivers/serial/mcfserial.c @@ -40,7 +40,6 @@ #include <asm/io.h> #include <asm/irq.h> #include <asm/system.h> -#include <asm/semaphore.h> #include <asm/delay.h> #include <asm/coldfire.h> #include <asm/mcfsim.h> diff --git a/drivers/serial/mpc52xx_uart.c b/drivers/serial/mpc52xx_uart.c index a638f23c6c6..d93b3578c5e 100644 --- a/drivers/serial/mpc52xx_uart.c +++ b/drivers/serial/mpc52xx_uart.c @@ -1188,6 +1188,8 @@ mpc52xx_uart_resume(struct platform_device *dev) } #endif +/* work with hotplug and coldplug */ +MODULE_ALIAS("platform:mpc52xx-psc"); static struct platform_driver mpc52xx_uart_platform_driver = { .probe = mpc52xx_uart_probe, diff --git a/drivers/serial/mpsc.c b/drivers/serial/mpsc.c index cb3a9196774..e8819c43f57 100644 --- a/drivers/serial/mpsc.c +++ b/drivers/serial/mpsc.c @@ -1964,6 +1964,7 @@ static struct platform_driver mpsc_driver = { .remove = mpsc_drv_remove, .driver = { .name = MPSC_CTLR_NAME, + .owner = THIS_MODULE, }, }; @@ -2007,3 +2008,4 @@ MODULE_DESCRIPTION("Generic Marvell MPSC serial/UART driver $Revision: 1.00 $"); MODULE_VERSION(MPSC_VERSION); MODULE_LICENSE("GPL"); MODULE_ALIAS_CHARDEV_MAJOR(MPSC_MAJOR); +MODULE_ALIAS("platform:" MPSC_CTLR_NAME); diff --git a/drivers/serial/netx-serial.c b/drivers/serial/netx-serial.c index b56f7db4503..3123ffeac8a 100644 --- a/drivers/serial/netx-serial.c +++ b/drivers/serial/netx-serial.c @@ -713,6 +713,7 @@ static struct platform_driver serial_netx_driver = { .driver = { .name = DRIVER_NAME, + .owner = THIS_MODULE, }, }; @@ -745,3 +746,4 @@ module_exit(netx_serial_exit); MODULE_AUTHOR("Sascha Hauer"); MODULE_DESCRIPTION("NetX serial port driver"); MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:" DRIVER_NAME); diff --git a/drivers/serial/of_serial.c b/drivers/serial/of_serial.c index c0e50a46105..25029c7570b 100644 --- a/drivers/serial/of_serial.c +++ b/drivers/serial/of_serial.c @@ -31,7 +31,8 @@ static int __devinit of_platform_serial_setup(struct of_device *ofdev, struct resource resource; struct device_node *np = ofdev->node; const unsigned int *clk, *spd; - int ret; + const u32 *prop; + int ret, prop_size; memset(port, 0, sizeof *port); spd = of_get_property(np, "current-speed", NULL); @@ -49,6 +50,17 @@ static int __devinit of_platform_serial_setup(struct of_device *ofdev, spin_lock_init(&port->lock); port->mapbase = resource.start; + + /* Check for shifted address mapping */ + prop = of_get_property(np, "reg-offset", &prop_size); + if (prop && (prop_size == sizeof(u32))) + port->mapbase += *prop; + + /* Check for registers offset within the devices address range */ + prop = of_get_property(np, "reg-shift", &prop_size); + if (prop && (prop_size == sizeof(u32))) + port->regshift = *prop; + port->irq = irq_of_parse_and_map(np, 0); port->iotype = UPIO_MEM; port->type = type; @@ -56,7 +68,9 @@ static int __devinit of_platform_serial_setup(struct of_device *ofdev, port->flags = UPF_SHARE_IRQ | UPF_BOOT_AUTOCONF | UPF_IOREMAP | UPF_FIXED_PORT; port->dev = &ofdev->dev; - port->custom_divisor = *clk / (16 * (*spd)); + /* If current-speed was set, then try not to change it. */ + if (spd) + port->custom_divisor = *clk / (16 * (*spd)); return 0; } diff --git a/drivers/serial/pnx8xxx_uart.c b/drivers/serial/pnx8xxx_uart.c index 8d01c59e8d0..d0e5a79ea63 100644 --- a/drivers/serial/pnx8xxx_uart.c +++ b/drivers/serial/pnx8xxx_uart.c @@ -850,3 +850,4 @@ MODULE_AUTHOR("Embedded Alley Solutions, Inc."); MODULE_DESCRIPTION("PNX8XXX SoCs serial port driver"); MODULE_LICENSE("GPL"); MODULE_ALIAS_CHARDEV_MAJOR(SERIAL_PNX8XXX_MAJOR); +MODULE_ALIAS("platform:pnx8xxx-uart"); diff --git a/drivers/serial/pxa.c b/drivers/serial/pxa.c index 352fcb8926a..b4f7ffb7688 100644 --- a/drivers/serial/pxa.c +++ b/drivers/serial/pxa.c @@ -833,6 +833,7 @@ static struct platform_driver serial_pxa_driver = { .resume = serial_pxa_resume, .driver = { .name = "pxa2xx-uart", + .owner = THIS_MODULE, }, }; @@ -861,4 +862,4 @@ module_init(serial_pxa_init); module_exit(serial_pxa_exit); MODULE_LICENSE("GPL"); - +MODULE_ALIAS("platform:pxa2xx-uart"); diff --git a/drivers/serial/s3c2410.c b/drivers/serial/s3c2410.c index 45de1936603..4ffa2585429 100644 --- a/drivers/serial/s3c2410.c +++ b/drivers/serial/s3c2410.c @@ -1935,3 +1935,7 @@ console_initcall(s3c24xx_serial_initconsole); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>"); MODULE_DESCRIPTION("Samsung S3C2410/S3C2440/S3C2412 Serial port driver"); +MODULE_ALIAS("platform:s3c2400-uart"); +MODULE_ALIAS("platform:s3c2410-uart"); +MODULE_ALIAS("platform:s3c2412-uart"); +MODULE_ALIAS("platform:s3c2440-uart"); diff --git a/drivers/serial/sa1100.c b/drivers/serial/sa1100.c index 58a83c27e14..67b2338913c 100644 --- a/drivers/serial/sa1100.c +++ b/drivers/serial/sa1100.c @@ -884,6 +884,7 @@ static struct platform_driver sa11x0_serial_driver = { .resume = sa1100_serial_resume, .driver = { .name = "sa11x0-uart", + .owner = THIS_MODULE, }, }; @@ -917,3 +918,4 @@ MODULE_AUTHOR("Deep Blue Solutions Ltd"); MODULE_DESCRIPTION("SA1100 generic serial port driver $Revision: 1.50 $"); MODULE_LICENSE("GPL"); MODULE_ALIAS_CHARDEV_MAJOR(SERIAL_SA1100_MAJOR); +MODULE_ALIAS("platform:sa11x0-uart"); diff --git a/drivers/serial/sc26xx.c b/drivers/serial/sc26xx.c index a350b6d2a18..ae2a9e2df77 100644 --- a/drivers/serial/sc26xx.c +++ b/drivers/serial/sc26xx.c @@ -732,6 +732,7 @@ static struct platform_driver sc26xx_driver = { .remove = __devexit_p(sc26xx_driver_remove), .driver = { .name = "SC26xx", + .owner = THIS_MODULE, }, }; @@ -753,3 +754,4 @@ MODULE_AUTHOR("Thomas Bogendörfer"); MODULE_DESCRIPTION("SC681/SC2692 serial driver"); MODULE_VERSION("1.0"); MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:SC26xx"); diff --git a/drivers/serial/serial_core.c b/drivers/serial/serial_core.c index 0f5a17987cc..977ce820ce3 100644 --- a/drivers/serial/serial_core.c +++ b/drivers/serial/serial_core.c @@ -329,13 +329,15 @@ EXPORT_SYMBOL(uart_update_timeout); * If it's still invalid, we try 9600 baud. * * Update the @termios structure to reflect the baud rate - * we're actually going to be using. + * we're actually going to be using. Don't do this for the case + * where B0 is requested ("hang up"). */ unsigned int uart_get_baud_rate(struct uart_port *port, struct ktermios *termios, struct ktermios *old, unsigned int min, unsigned int max) { unsigned int try, baud, altbaud = 38400; + int hung_up = 0; upf_t flags = port->flags & UPF_SPD_MASK; if (flags == UPF_SPD_HI) @@ -360,8 +362,10 @@ uart_get_baud_rate(struct uart_port *port, struct ktermios *termios, /* * Special case: B0 rate. */ - if (baud == 0) + if (baud == 0) { + hung_up = 1; baud = 9600; + } if (baud >= min && baud <= max) return baud; @@ -373,7 +377,9 @@ uart_get_baud_rate(struct uart_port *port, struct ktermios *termios, termios->c_cflag &= ~CBAUD; if (old) { baud = tty_termios_baud_rate(old); - tty_termios_encode_baud_rate(termios, baud, baud); + if (!hung_up) + tty_termios_encode_baud_rate(termios, + baud, baud); old = NULL; continue; } @@ -382,7 +388,8 @@ uart_get_baud_rate(struct uart_port *port, struct ktermios *termios, * As a last resort, if the quotient is zero, * default to 9600 bps */ - tty_termios_encode_baud_rate(termios, 9600, 9600); + if (!hung_up) + tty_termios_encode_baud_rate(termios, 9600, 9600); } return 0; @@ -1771,7 +1778,7 @@ static int uart_read_proc(char *page, char **start, off_t off, } #endif -#ifdef CONFIG_SERIAL_CORE_CONSOLE +#if defined(CONFIG_SERIAL_CORE_CONSOLE) || defined(CONFIG_CONSOLE_POLL) /* * uart_console_write - write a console message to a serial port * @port: the port to write the message @@ -1827,7 +1834,7 @@ uart_get_console(struct uart_port *ports, int nr, struct console *co) * options. The format of the string is <baud><parity><bits><flow>, * eg: 115200n8r */ -void __init +void uart_parse_options(char *options, int *baud, int *parity, int *bits, int *flow) { char *s = options; @@ -1842,6 +1849,7 @@ uart_parse_options(char *options, int *baud, int *parity, int *bits, int *flow) if (*s) *flow = *s; } +EXPORT_SYMBOL_GPL(uart_parse_options); struct baud_rates { unsigned int rate; @@ -1872,7 +1880,7 @@ static const struct baud_rates baud_rates[] = { * @bits: number of data bits * @flow: flow control character - 'r' (rts) */ -int __init +int uart_set_options(struct uart_port *port, struct console *co, int baud, int parity, int bits, int flow) { @@ -1924,10 +1932,16 @@ uart_set_options(struct uart_port *port, struct console *co, port->mctrl |= TIOCM_DTR; port->ops->set_termios(port, &termios, &dummy); - co->cflag = termios.c_cflag; + /* + * Allow the setting of the UART parameters with a NULL console + * too: + */ + if (co) + co->cflag = termios.c_cflag; return 0; } +EXPORT_SYMBOL_GPL(uart_set_options); #endif /* CONFIG_SERIAL_CORE_CONSOLE */ static void uart_change_pm(struct uart_state *state, int pm_state) @@ -2182,6 +2196,60 @@ uart_configure_port(struct uart_driver *drv, struct uart_state *state, } } +#ifdef CONFIG_CONSOLE_POLL + +static int uart_poll_init(struct tty_driver *driver, int line, char *options) +{ + struct uart_driver *drv = driver->driver_state; + struct uart_state *state = drv->state + line; + struct uart_port *port; + int baud = 9600; + int bits = 8; + int parity = 'n'; + int flow = 'n'; + + if (!state || !state->port) + return -1; + + port = state->port; + if (!(port->ops->poll_get_char && port->ops->poll_put_char)) + return -1; + + if (options) { + uart_parse_options(options, &baud, &parity, &bits, &flow); + return uart_set_options(port, NULL, baud, parity, bits, flow); + } + + return 0; +} + +static int uart_poll_get_char(struct tty_driver *driver, int line) +{ + struct uart_driver *drv = driver->driver_state; + struct uart_state *state = drv->state + line; + struct uart_port *port; + + if (!state || !state->port) + return -1; + + port = state->port; + return port->ops->poll_get_char(port); +} + +static void uart_poll_put_char(struct tty_driver *driver, int line, char ch) +{ + struct uart_driver *drv = driver->driver_state; + struct uart_state *state = drv->state + line; + struct uart_port *port; + + if (!state || !state->port) + return; + + port = state->port; + port->ops->poll_put_char(port, ch); +} +#endif + static const struct tty_operations uart_ops = { .open = uart_open, .close = uart_close, @@ -2206,6 +2274,11 @@ static const struct tty_operations uart_ops = { #endif .tiocmget = uart_tiocmget, .tiocmset = uart_tiocmset, +#ifdef CONFIG_CONSOLE_POLL + .poll_init = uart_poll_init, + .poll_get_char = uart_poll_get_char, + .poll_put_char = uart_poll_put_char, +#endif }; /** @@ -2356,7 +2429,7 @@ int uart_add_one_port(struct uart_driver *drv, struct uart_port *port) */ tty_dev = tty_register_device(drv->tty_driver, port->line, port->dev); if (likely(!IS_ERR(tty_dev))) { - device_can_wakeup(tty_dev) = 1; + device_init_wakeup(tty_dev, 1); device_set_wakeup_enable(tty_dev, 0); } else printk(KERN_ERR "Cannot register tty device on line %d\n", diff --git a/drivers/serial/sh-sci.c b/drivers/serial/sh-sci.c index 9d244d1644e..c2ea5d4df44 100644 --- a/drivers/serial/sh-sci.c +++ b/drivers/serial/sh-sci.c @@ -333,7 +333,6 @@ static void sci_init_pins_scif(struct uart_port *port, unsigned int cflag) } sci_out(port, SCFCR, fcr_val); } - #elif defined(CONFIG_CPU_SH3) /* For SH7705, SH7706, SH7707, SH7709, SH7709A, SH7729 */ static void sci_init_pins_scif(struct uart_port *port, unsigned int cflag) @@ -384,6 +383,12 @@ static void sci_init_pins_scif(struct uart_port *port, unsigned int cflag) sci_out(port, SCFCR, fcr_val); } +#elif defined(CONFIG_CPU_SUBTYPE_SH7723) +static void sci_init_pins_scif(struct uart_port *port, unsigned int cflag) +{ + /* Nothing to do here.. */ + sci_out(port, SCFCR, 0); +} #else /* For SH7750 */ static void sci_init_pins_scif(struct uart_port *port, unsigned int cflag) @@ -1552,3 +1557,4 @@ module_init(sci_init); module_exit(sci_exit); MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:sh-sci"); diff --git a/drivers/serial/sh-sci.h b/drivers/serial/sh-sci.h index 01a9dd715f5..fa8700a968f 100644 --- a/drivers/serial/sh-sci.h +++ b/drivers/serial/sh-sci.h @@ -1,20 +1,5 @@ -/* $Id: sh-sci.h,v 1.4 2004/02/19 16:43:56 lethal Exp $ - * - * linux/drivers/serial/sh-sci.h - * - * SuperH on-chip serial module support. (SCI with no FIFO / with FIFO) - * Copyright (C) 1999, 2000 Niibe Yutaka - * Copyright (C) 2000 Greg Banks - * Copyright (C) 2002, 2003 Paul Mundt - * Modified to support multiple serial ports. Stuart Menefy (May 2000). - * Modified to support SH7300(SH-Mobile) SCIF. Takashi Kusuda (Jun 2003). - * Modified to support H8/300 Series Yoshinori Sato (Feb 2004). - * Removed SH7300 support (Jul 2007). - * Modified to support SH7720 SCIF. Markus Brunner, Mark Jonas (Aug 2007). - */ #include <linux/serial_core.h> #include <asm/io.h> - #include <asm/gpio.h> #if defined(CONFIG_H83007) || defined(CONFIG_H83068) @@ -102,6 +87,15 @@ # define SCSPTR0 SCPDR0 # define SCIF_ORER 0x0001 /* overrun error bit */ # define SCSCR_INIT(port) 0x0038 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */ +#elif defined(CONFIG_CPU_SUBTYPE_SH7723) +# define SCSPTR0 0xa4050160 +# define SCSPTR1 0xa405013e +# define SCSPTR2 0xa4050160 +# define SCSPTR3 0xa405013e +# define SCSPTR4 0xa4050128 +# define SCSPTR5 0xa4050128 +# define SCIF_ORER 0x0001 /* overrun error bit */ +# define SCSCR_INIT(port) 0x0038 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */ # define SCIF_ONLY #elif defined(CONFIG_CPU_SUBTYPE_SH4_202) # define SCSPTR2 0xffe80020 /* 16 bit SCIF */ @@ -395,6 +389,11 @@ h8_sci_offset, h8_sci_size) \ CPU_SCI_FNS(name, h8_sci_offset, h8_sci_size) #define SCIF_FNS(name, sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size) +#elif defined(CONFIG_CPU_SUBTYPE_SH7723) + #define SCIx_FNS(name, sh4_scifa_offset, sh4_scifa_size, sh4_scif_offset, sh4_scif_size) \ + CPU_SCIx_FNS(name, sh4_scifa_offset, sh4_scifa_size, sh4_scif_offset, sh4_scif_size) + #define SCIF_FNS(name, sh4_scif_offset, sh4_scif_size) \ + CPU_SCIF_FNS(name, sh4_scif_offset, sh4_scif_size) #else #define SCIx_FNS(name, sh3_sci_offset, sh3_sci_size, sh4_sci_offset, sh4_sci_size, \ sh3_scif_offset, sh3_scif_size, sh4_scif_offset, sh4_scif_size, \ @@ -419,6 +418,18 @@ SCIF_FNS(SCFDR, 0x1c, 16) SCIF_FNS(SCxTDR, 0x20, 8) SCIF_FNS(SCxRDR, 0x24, 8) SCIF_FNS(SCLSR, 0x24, 16) +#elif defined(CONFIG_CPU_SUBTYPE_SH7723) +SCIx_FNS(SCSMR, 0x00, 16, 0x00, 16) +SCIx_FNS(SCBRR, 0x04, 8, 0x04, 8) +SCIx_FNS(SCSCR, 0x08, 16, 0x08, 16) +SCIx_FNS(SCxTDR, 0x20, 8, 0x0c, 8) +SCIx_FNS(SCxSR, 0x14, 16, 0x10, 16) +SCIx_FNS(SCxRDR, 0x24, 8, 0x14, 8) +SCIF_FNS(SCTDSR, 0x0c, 8) +SCIF_FNS(SCFER, 0x10, 16) +SCIF_FNS(SCFCR, 0x18, 16) +SCIF_FNS(SCFDR, 0x1c, 16) +SCIF_FNS(SCLSR, 0x24, 16) #else /* reg SCI/SH3 SCI/SH4 SCIF/SH3 SCIF/SH4 SCI/H8*/ /* name off sz off sz off sz off sz off sz*/ @@ -589,6 +600,23 @@ static inline int sci_rxd_in(struct uart_port *port) return ctrl_inb(SCPDR0) & 0x0001 ? 1 : 0; /* SCIF0 */ return 1; } +#elif defined(CONFIG_CPU_SUBTYPE_SH7723) +static inline int sci_rxd_in(struct uart_port *port) +{ + if (port->mapbase == 0xffe00000) + return ctrl_inb(SCSPTR0) & 0x0008 ? 1 : 0; /* SCIF0 */ + if (port->mapbase == 0xffe10000) + return ctrl_inb(SCSPTR1) & 0x0020 ? 1 : 0; /* SCIF1 */ + if (port->mapbase == 0xffe20000) + return ctrl_inb(SCSPTR2) & 0x0001 ? 1 : 0; /* SCIF2 */ + if (port->mapbase == 0xa4e30000) + return ctrl_inb(SCSPTR3) & 0x0001 ? 1 : 0; /* SCIF3 */ + if (port->mapbase == 0xa4e40000) + return ctrl_inb(SCSPTR4) & 0x0001 ? 1 : 0; /* SCIF4 */ + if (port->mapbase == 0xa4e50000) + return ctrl_inb(SCSPTR5) & 0x0008 ? 1 : 0; /* SCIF5 */ + return 1; +} #elif defined(CONFIG_CPU_SUBTYPE_SH5_101) || defined(CONFIG_CPU_SUBTYPE_SH5_103) static inline int sci_rxd_in(struct uart_port *port) { @@ -727,6 +755,8 @@ static inline int sci_rxd_in(struct uart_port *port) defined(CONFIG_CPU_SUBTYPE_SH7720) || \ defined(CONFIG_CPU_SUBTYPE_SH7721) #define SCBRR_VALUE(bps, clk) (((clk*2)+16*bps)/(32*bps)-1) +#elif defined(CONFIG_CPU_SUBTYPE_SH7723) +#define SCBRR_VALUE(bps, clk) (((clk*2)+16*bps)/(16*bps)-1) #elif defined(__H8300H__) || defined(__H8300S__) #define SCBRR_VALUE(bps) (((CONFIG_CPU_CLOCK*1000/32)/bps)-1) #elif defined(CONFIG_SUPERH64) diff --git a/drivers/serial/sunzilog.c b/drivers/serial/sunzilog.c index cb2e4050637..90a20a152eb 100644 --- a/drivers/serial/sunzilog.c +++ b/drivers/serial/sunzilog.c @@ -1015,6 +1015,7 @@ static struct uart_ops sunzilog_pops = { .verify_port = sunzilog_verify_port, }; +static int uart_chip_count; static struct uart_sunzilog_port *sunzilog_port_table; static struct zilog_layout __iomem **sunzilog_chip_regs; @@ -1230,7 +1231,7 @@ static inline struct console *SUNZILOG_CONSOLE(void) #define SUNZILOG_CONSOLE() (NULL) #endif -static void __devinit sunzilog_init_kbdms(struct uart_sunzilog_port *up, int channel) +static void __devinit sunzilog_init_kbdms(struct uart_sunzilog_port *up) { int baud, brg; @@ -1304,7 +1305,7 @@ static void __devinit sunzilog_init_hw(struct uart_sunzilog_port *up) up->curregs[R7] = 0x7E; /* SDLC Flag */ up->curregs[R9] = NV; up->curregs[R7p] = 0x00; - sunzilog_init_kbdms(up, up->port.line); + sunzilog_init_kbdms(up); /* Only enable interrupts if an ISR handler available */ if (up->flags & SUNZILOG_FLAG_ISR_HANDLER) up->curregs[R9] |= MIE; @@ -1350,16 +1351,22 @@ static int zilog_irq = -1; static int __devinit zs_probe(struct of_device *op, const struct of_device_id *match) { - static int inst; + static int kbm_inst, uart_inst; + int inst; struct uart_sunzilog_port *up; struct zilog_layout __iomem *rp; - int keyboard_mouse; + int keyboard_mouse = 0; int err; - keyboard_mouse = 0; if (of_find_property(op->node, "keyboard", NULL)) keyboard_mouse = 1; + /* uarts must come before keyboards/mice */ + if (keyboard_mouse) + inst = uart_chip_count + kbm_inst; + else + inst = uart_inst; + sunzilog_chip_regs[inst] = of_ioremap(&op->resource[0], 0, sizeof(struct zilog_layout), "zs"); @@ -1427,6 +1434,7 @@ static int __devinit zs_probe(struct of_device *op, const struct of_device_id *m rp, sizeof(struct zilog_layout)); return err; } + uart_inst++; } else { printk(KERN_INFO "%s: Keyboard at MMIO 0x%llx (irq = %d) " "is a %s\n", @@ -1438,12 +1446,11 @@ static int __devinit zs_probe(struct of_device *op, const struct of_device_id *m op->dev.bus_id, (unsigned long long) up[1].port.mapbase, op->irqs[0], sunzilog_type(&up[1].port)); + kbm_inst++; } dev_set_drvdata(&op->dev, &up[0]); - inst++; - return 0; } @@ -1491,28 +1498,25 @@ static struct of_platform_driver zs_driver = { static int __init sunzilog_init(void) { struct device_node *dp; - int err, uart_count; - int num_keybms; + int err; + int num_keybms = 0; int num_sunzilog = 0; - num_keybms = 0; for_each_node_by_name(dp, "zs") { num_sunzilog++; if (of_find_property(dp, "keyboard", NULL)) num_keybms++; } - uart_count = 0; if (num_sunzilog) { - int uart_count; - err = sunzilog_alloc_tables(num_sunzilog); if (err) goto out; - uart_count = (num_sunzilog * 2) - (2 * num_keybms); + uart_chip_count = num_sunzilog - num_keybms; - err = sunserial_register_minors(&sunzilog_reg, uart_count); + err = sunserial_register_minors(&sunzilog_reg, + uart_chip_count * 2); if (err) goto out_free_tables; } diff --git a/drivers/serial/uartlite.c b/drivers/serial/uartlite.c index 4e06ab6bcb6..b565d5a3749 100644 --- a/drivers/serial/uartlite.c +++ b/drivers/serial/uartlite.c @@ -561,6 +561,9 @@ static int __devexit ulite_remove(struct platform_device *pdev) return ulite_release(&pdev->dev); } +/* work with hotplug and coldplug */ +MODULE_ALIAS("platform:uartlite"); + static struct platform_driver ulite_platform_driver = { .probe = ulite_probe, .remove = __devexit_p(ulite_remove), diff --git a/drivers/serial/ucc_uart.c b/drivers/serial/ucc_uart.c index e0994f06100..5e4310ccd59 100644 --- a/drivers/serial/ucc_uart.c +++ b/drivers/serial/ucc_uart.c @@ -1270,10 +1270,18 @@ static int ucc_uart_probe(struct of_device *ofdev, /* Get the UCC number (device ID) */ /* UCCs are numbered 1-7 */ - iprop = of_get_property(np, "device-id", NULL); - if (!iprop || (*iprop < 1) || (*iprop > UCC_MAX_NUM)) { - dev_err(&ofdev->dev, - "missing or invalid UCC specified in device tree\n"); + iprop = of_get_property(np, "cell-index", NULL); + if (!iprop) { + iprop = of_get_property(np, "device-id", NULL); + if (!iprop) { + dev_err(&ofdev->dev, "UCC is unspecified in " + "device tree\n"); + return -EINVAL; + } + } + + if ((*iprop < 1) || (*iprop > UCC_MAX_NUM)) { + dev_err(&ofdev->dev, "no support for UCC%u\n", *iprop); kfree(qe_port); return -ENODEV; } diff --git a/drivers/serial/vr41xx_siu.c b/drivers/serial/vr41xx_siu.c index 6fd51b0022c..bb6ce6bba32 100644 --- a/drivers/serial/vr41xx_siu.c +++ b/drivers/serial/vr41xx_siu.c @@ -1,7 +1,7 @@ /* * Driver for NEC VR4100 series Serial Interface Unit. * - * Copyright (C) 2004-2007 Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> + * Copyright (C) 2004-2008 Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> * * Based on drivers/serial/8250.c, by Russell King. * @@ -840,6 +840,19 @@ static int __devinit siu_console_init(void) console_initcall(siu_console_init); +void __init vr41xx_siu_early_setup(struct uart_port *port) +{ + if (port->type == PORT_UNKNOWN) + return; + + siu_uart_ports[port->line].line = port->line; + siu_uart_ports[port->line].type = port->type; + siu_uart_ports[port->line].uartclk = SIU_BAUD_BASE * 16; + siu_uart_ports[port->line].mapbase = port->mapbase; + siu_uart_ports[port->line].mapbase = port->mapbase; + siu_uart_ports[port->line].ops = &siu_uart_ops; +} + #define SERIAL_VR41XX_CONSOLE &siu_console #else #define SERIAL_VR41XX_CONSOLE NULL @@ -960,3 +973,6 @@ static void __exit vr41xx_siu_exit(void) module_init(vr41xx_siu_init); module_exit(vr41xx_siu_exit); + +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:SIU"); |