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Message-ID: <1353040771.7586.2.camel@gandalf.local.home>
Date: Thu, 15 Nov 2012 23:39:31 -0500
From: Steven Rostedt <rostedt@...dmis.org>
To: LKML <linux-kernel@...r.kernel.org>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
hjchoi <hjchoi@...bas.com>
Subject: [PATCH] staging: Add SystemBase Multi-2/PCI driver
I ported the driver supplied by SystemBase to mainline.
As the driver had MODULE_LICENSE("GPL") it is declared as a GPL module
and thus I have the right to distribute it upstream. Note, I did the
bare minimum to get it working. It still needs a lot of loving.
Cc: hjchoi <hjchoi@...bas.com>
Signed-off-by: Steven Rostedt <rostedt@...dmis.org>
---
drivers/staging/Kconfig | 2 +
drivers/staging/Makefile | 1 +
drivers/staging/sb105x/Kconfig | 9 +
drivers/staging/sb105x/Makefile | 3 +
drivers/staging/sb105x/sb_mp_register.h | 295 +++
drivers/staging/sb105x/sb_pci_mp.c | 3198 +++++++++++++++++++++++++++++++
drivers/staging/sb105x/sb_pci_mp.h | 288 +++
drivers/staging/sb105x/sb_ser_core.h | 368 ++++
8 files changed, 4164 insertions(+)
create mode 100644 drivers/staging/sb105x/Kconfig
create mode 100644 drivers/staging/sb105x/Makefile
create mode 100644 drivers/staging/sb105x/sb_mp_register.h
create mode 100644 drivers/staging/sb105x/sb_pci_mp.c
create mode 100644 drivers/staging/sb105x/sb_pci_mp.h
create mode 100644 drivers/staging/sb105x/sb_ser_core.h
diff --git a/drivers/staging/Kconfig b/drivers/staging/Kconfig
index e3402d5..5579bd4 100644
--- a/drivers/staging/Kconfig
+++ b/drivers/staging/Kconfig
@@ -136,4 +136,6 @@ source "drivers/staging/csr/Kconfig"
source "drivers/staging/omap-thermal/Kconfig"
+source "drivers/staging/sb105x/Kconfig"
+
endif # STAGING
diff --git a/drivers/staging/Makefile b/drivers/staging/Makefile
index 3be59d0..3267b08 100644
--- a/drivers/staging/Makefile
+++ b/drivers/staging/Makefile
@@ -60,3 +60,4 @@ obj-$(CONFIG_USB_G_CCG) += ccg/
obj-$(CONFIG_WIMAX_GDM72XX) += gdm72xx/
obj-$(CONFIG_CSR_WIFI) += csr/
obj-$(CONFIG_OMAP_BANDGAP) += omap-thermal/
+obj-$(CONFIG_SB105X) += sb105x/
diff --git a/drivers/staging/sb105x/Kconfig b/drivers/staging/sb105x/Kconfig
new file mode 100644
index 0000000..ac87c5e
--- /dev/null
+++ b/drivers/staging/sb105x/Kconfig
@@ -0,0 +1,9 @@
+config SB105X
+ tristate "SystemBase PCI Multiport UART"
+ select SERIAL_CORE
+ depends on PCI
+ help
+ A driver for the SystemBase Multi-2/PCI serial card
+
+ To compile this driver a module, choose M here: the module
+ will be called "sb105x".
diff --git a/drivers/staging/sb105x/Makefile b/drivers/staging/sb105x/Makefile
new file mode 100644
index 0000000..b1bf377
--- /dev/null
+++ b/drivers/staging/sb105x/Makefile
@@ -0,0 +1,3 @@
+obj-$(CONFIG_SB105X) += sb105x.o
+
+sb105x-y := sb_pci_mp.o
diff --git a/drivers/staging/sb105x/sb_mp_register.h b/drivers/staging/sb105x/sb_mp_register.h
new file mode 100644
index 0000000..5480ae1
--- /dev/null
+++ b/drivers/staging/sb105x/sb_mp_register.h
@@ -0,0 +1,295 @@
+
+/*
+ * SB105X_UART.h
+ *
+ * Copyright (C) 2008 systembase
+ *
+ * UART registers.
+ *
+ * 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.
+ */
+
+#ifndef UART_SB105X_H
+#define UART_SB105X_H
+
+/*
+ * option register
+ */
+
+/* Device Infomation Register */
+#define MP_OPTR_DIR0 0x04 /* port0 ~ port8 */
+#define MP_OPTR_DIR1 0x05 /* port8 ~ port15 */
+#define MP_OPTR_DIR2 0x06 /* port16 ~ port23 */
+#define MP_OPTR_DIR3 0x07 /* port24 ~ port31 */
+
+#define DIR_UART_16C550 0
+#define DIR_UART_16C1050 1
+#define DIR_UART_16C1050A 2
+
+#define DIR_CLK_1843200 0x0 /* input clock 1843200 Hz */
+#define DIR_CLK_3686400 0x1 /* input clock 3686400 Hz */
+#define DIR_CLK_7372800 0x2 /* input clock 7372800 Hz */
+#define DIR_CLK_14745600 0x3 /* input clock 14745600 Hz */
+#define DIR_CLK_29491200 0x4 /* input clock 29491200 Hz */
+#define DIR_CLK_58985400 0x5 /* input clock 58985400 Hz */
+
+/* Interface Information Register */
+#define MP_OPTR_IIR0 0x08 /* port0 ~ port8 */
+#define MP_OPTR_IIR1 0x09 /* port8 ~ port15 */
+#define MP_OPTR_IIR2 0x0A /* port16 ~ port23 */
+#define MP_OPTR_IIR3 0x0B /* port24 ~ port31 */
+
+#define IIR_RS232 0x00 /* RS232 type */
+#define IIR_RS422 0x10 /* RS422 type */
+#define IIR_RS485 0x20 /* RS485 type */
+#define IIR_UNKNOWN 0x30 /* unknown type */
+
+/* Interrrupt Mask Register */
+#define MP_OPTR_IMR0 0x0C /* port0 ~ port8 */
+#define MP_OPTR_IMR1 0x0D /* port8 ~ port15 */
+#define MP_OPTR_IMR2 0x0E /* port16 ~ port23 */
+#define MP_OPTR_IMR3 0x0F /* port24 ~ port31 */
+
+/* Interrupt Poll Register */
+#define MP_OPTR_IPR0 0x10 /* port0 ~ port8 */
+#define MP_OPTR_IPR1 0x11 /* port8 ~ port15 */
+#define MP_OPTR_IPR2 0x12 /* port16 ~ port23 */
+#define MP_OPTR_IPR3 0x13 /* port24 ~ port31 */
+
+/* General Purpose Output Control Register */
+#define MP_OPTR_GPOCR 0x20
+
+/* General Purpose Output Data Register */
+#define MP_OPTR_GPODR 0x21
+
+/* Parallel Additional Function Register */
+#define MP_OPTR_PAFR 0x23
+
+/*
+ * systembase 16c105x UART register
+ */
+
+#define PAGE_0 0
+#define PAGE_1 1
+#define PAGE_2 2
+#define PAGE_3 3
+#define PAGE_4 4
+
+/*
+ * ******************************************************************
+ * * DLAB=0 =============== Page 0 Registers *
+ * ******************************************************************
+ */
+
+#define SB105X_RX 0 /* In: Receive buffer */
+#define SB105X_TX 0 /* Out: Transmit buffer */
+
+#define SB105X_IER 1 /* Out: Interrupt Enable Register */
+
+#define SB105X_IER_CTSI 0x80 /* CTS# Interrupt Enable (Requires EFR[4] = 1) */
+#define SB105X_IER_RTSI 0x40 /* RTS# Interrupt Enable (Requires EFR[4] = 1) */
+#define SB105X_IER_XOI 0x20 /* Xoff Interrupt Enable (Requires EFR[4] = 1) */
+#define SB105X_IER_SME 0x10 /* Sleep Mode Enable (Requires EFR[4] = 1) */
+#define SB105X_IER_MSI 0x08 /* Enable Modem status interrupt */
+#define SB105X_IER_RLSI 0x04 /* Enable receiver line status interrupt */
+#define SB105X_IER_THRI 0x02 /* Enable Transmitter holding register int. */
+#define SB105X_IER_RDI 0x01 /* Enable receiver data interrupt */
+
+#define SB105X_ISR 2 /* In: Interrupt ID Register */
+
+#define SB105X_ISR_NOINT 0x01 /* No interrupts pending */
+#define SB105X_ISR_RLSI 0x06 /* Receiver line status interrupt (Priority = 1)*/
+#define SB105X_ISR_RDAI 0x0c /* Receive Data Available interrupt */
+#define SB105X_ISR_CTII 0x04 /* Character Timeout Indication interrupt */
+#define SB105X_ISR_THRI 0x02 /* Transmitter holding register empty */
+#define SB105X_ISR_MSI 0x00 /* Modem status interrupt */
+#define SB105X_ISR_RXCI 0x10 /* Receive Xoff or Special Character interrupt */
+#define SB105X_ISR_RCSI 0x20 /* RTS#, CTS# status interrupt during Auto RTS/CTS flow control */
+
+#define SB105X_FCR 2 /* Out: FIFO Control Register */
+
+#define SB105X_FCR_FEN 0x01 /* FIFO Enable */
+#define SB105X_FCR_RXFR 0x02 /* RX FIFO Reset */
+#define SB105X_FCR_TXFR 0x04 /* TX FIFO Reset */
+#define SB105X_FCR_DMS 0x08 /* DMA Mode Select */
+
+#define SB105X_FCR_RTR08 0x00 /* Receice Trigger Level set at 8 */
+#define SB105X_FCR_RTR16 0x40 /* Receice Trigger Level set at 16 */
+#define SB105X_FCR_RTR56 0x80 /* Receice Trigger Level set at 56 */
+#define SB105X_FCR_RTR60 0xc0 /* Receice Trigger Level set at 60 */
+#define SB105X_FCR_TTR08 0x00 /* Transmit Trigger Level set at 8 */
+#define SB105X_FCR_TTR16 0x10 /* Transmit Trigger Level set at 16 */
+#define SB105X_FCR_TTR32 0x20 /* Transmit Trigger Level set at 32 */
+#define SB105X_FCR_TTR56 0x30 /* Transmit Trigger Level set at 56 */
+
+#define SB105X_LCR 3 /* Out: Line Control Register */
+/*
+ * * Note: if the word length is 5 bits (SB105X_LCR_WLEN5), then setting
+ * * SB105X_LCR_STOP will select 1.5 stop bits, not 2 stop bits.
+ */
+#define SB105X_LCR_DLAB 0x80 /* Divisor Latch Enable */
+#define SB105X_LCR_SBC 0x40 /* Break Enable*/
+#define SB105X_LCR_SPAR 0x20 /* Set Stick parity */
+#define SB105X_LCR_EPAR 0x10 /* Even parity select */
+#define SB105X_LCR_PAREN 0x08 /* Parity Enable */
+#define SB105X_LCR_STOP 0x04 /* Stop bits: 0->1 bit, 1->2 bits, 1 and SB105X_LCR_WLEN5 -> 1.5 bit */
+#define SB105X_LCR_WLEN5 0x00 /* Wordlength: 5 bits */
+#define SB105X_LCR_WLEN6 0x01 /* Wordlength: 6 bits */
+#define SB105X_LCR_WLEN7 0x02 /* Wordlength: 7 bits */
+#define SB105X_LCR_WLEN8 0x03 /* Wordlength: 8 bits */
+
+#define SB105X_LCR_BF 0xBF
+
+#define SB105X_MCR 4 /* Out: Modem Control Register */
+#define SB105X_MCR_CPS 0x80 /* Clock Prescaler Select */
+#define SB105X_MCR_P2S 0x40 /* Page 2 Select /Xoff Re-Transmit Access Enable */
+#define SB105X_MCR_XOA 0x20 /* Xon Any Enable */
+#define SB105X_MCR_ILB 0x10 /* Internal Loopback Enable */
+#define SB105X_MCR_OUT2 0x08 /* Out2/Interrupt Output Enable*/
+#define SB105X_MCR_OUT1 0x04 /* Out1/Interrupt Output Enable */
+#define SB105X_MCR_RTS 0x02 /* RTS# Output */
+#define SB105X_MCR_DTR 0x01 /* DTR# Output */
+
+#define SB105X_LSR 5 /* In: Line Status Register */
+#define SB105X_LSR_RFEI 0x80 /* Receive FIFO data error Indicator */
+#define SB105X_LSR_TEMI 0x40 /* THR and TSR Empty Indicator */
+#define SB105X_LSR_THRE 0x20 /* THR Empty Indicator */
+#define SB105X_LSR_BII 0x10 /* Break interrupt indicator */
+#define SB105X_LSR_FEI 0x08 /* Frame error indicator */
+#define SB105X_LSR_PEI 0x04 /* Parity error indicator */
+#define SB105X_LSR_OEI 0x02 /* Overrun error indicator */
+#define SB105X_LSR_RDRI 0x01 /* Receive data ready Indicator*/
+
+#define SB105X_MSR 6 /* In: Modem Status Register */
+#define SB105X_MSR_DCD 0x80 /* Data Carrier Detect */
+#define SB105X_MSR_RI 0x40 /* Ring Indicator */
+#define SB105X_MSR_DSR 0x20 /* Data Set Ready */
+#define SB105X_MSR_CTS 0x10 /* Clear to Send */
+#define SB105X_MSR_DDCD 0x08 /* Delta DCD */
+#define SB105X_MSR_DRI 0x04 /* Delta ring indicator */
+#define SB105X_MSR_DDSR 0x02 /* Delta DSR */
+#define SB105X_MSR_DCTS 0x01 /* Delta CTS */
+
+#define SB105XA_MDR 6 /* Out: Multi Drop mode Register */
+#define SB105XA_MDR_NPS 0x08 /* 9th Bit Polarity Select */
+#define SB105XA_MDR_AME 0x02 /* Auto Multi-drop Enable */
+#define SB105XA_MDR_MDE 0x01 /* Multi Drop Enable */
+
+#define SB105X_SPR 7 /* I/O: Scratch Register */
+
+/*
+ * DLAB=1
+ */
+#define SB105X_DLL 0 /* Out: Divisor Latch Low */
+#define SB105X_DLM 1 /* Out: Divisor Latch High */
+
+/*
+ * ******************************************************************
+ * * DLAB(LCR[7]) = 0 , MCR[6] = 1 ============= Page 2 Registers *
+ * ******************************************************************
+ */
+#define SB105X_GICR 1 /* Global Interrupt Control Register */
+#define SB105X_GICR_GIM 0x01 /* Global Interrupt Mask */
+
+#define SB105X_GISR 2 /* Global Interrupt Status Register */
+#define SB105X_GISR_MGICR0 0x80 /* Mirror the content of GICR[0] */
+#define SB105X_GISR_CS3IS 0x08 /* SB105X of CS3# Interrupt Status */
+#define SB105X_GISR_CS2IS 0x04 /* SB105X of CS2# Interrupt Status */
+#define SB105X_GISR_CS1IS 0x02 /* SB105X of CS1# Interrupt Status */
+#define SB105X_GISR_CS0IS 0x01 /* SB105X of CS0# Interrupt Status */
+
+#define SB105X_TFCR 5 /* Transmit FIFO Count Register */
+
+#define SB105X_RFCR 6 /* Receive FIFO Count Register */
+
+#define SB105X_FSR 7 /* Flow Control Status Register */
+#define SB105X_FSR_THFS 0x20 /* Transmit Hardware Flow Control Status */
+#define SB105X_FSR_TSFS 0x10 /* Transmit Software Flow Control Status */
+#define SB105X_FSR_RHFS 0x02 /* Receive Hardware Flow Control Status */
+#define SB105X_FSR_RSFS 0x01 /* Receive Software Flow Control Status */
+
+/*
+ * ******************************************************************
+ * * LCR = 0xBF, PSR[0] = 0 ============= Page 3 Registers *
+ * ******************************************************************
+ */
+
+#define SB105X_PSR 0 /* Page Select Register */
+#define SB105X_PSR_P3KEY 0xA4 /* Page 3 Select Key */
+#define SB105X_PSR_P4KEY 0xA5 /* Page 5 Select Key */
+
+#define SB105X_ATR 1 /* Auto Toggle Control Register */
+#define SB105X_ATR_RPS 0x80 /* RXEN Polarity Select */
+#define SB105X_ATR_RCMS 0x40 /* RXEN Control Mode Select */
+#define SB105X_ATR_TPS 0x20 /* TXEN Polarity Select */
+#define SB105X_ATR_TCMS 0x10 /* TXEN Control Mode Select */
+#define SB105X_ATR_ATDIS 0x00 /* Auto Toggle is disabled */
+#define SB105X_ATR_ART 0x01 /* RTS#/TXEN pin operates as TXEN */
+#define SB105X_ATR_ADT 0x02 /* DTR#/TXEN pin operates as TXEN */
+#define SB105X_ATR_A80 0x03 /* only in 80 pin use */
+
+#define SB105X_EFR 2 /* (Auto) Enhanced Feature Register */
+#define SB105X_EFR_ACTS 0x80 /* Auto-CTS Flow Control Enable */
+#define SB105X_EFR_ARTS 0x40 /* Auto-RTS Flow Control Enable */
+#define SB105X_EFR_SCD 0x20 /* Special Character Detect */
+#define SB105X_EFR_EFBEN 0x10 /* Enhanced Function Bits Enable */
+
+#define SB105X_XON1 4 /* Xon1 Character Register */
+#define SB105X_XON2 5 /* Xon2 Character Register */
+#define SB105X_XOFF1 6 /* Xoff1 Character Register */
+#define SB105X_XOFF2 7 /* Xoff2 Character Register */
+
+/*
+ * ******************************************************************
+ * * LCR = 0xBF, PSR[0] = 1 ============ Page 4 Registers *
+ * ******************************************************************
+ */
+
+#define SB105X_AFR 1 /* Additional Feature Register */
+#define SB105X_AFR_GIPS 0x20 /* Global Interrupt Polarity Select */
+#define SB105X_AFR_GIEN 0x10 /* Global Interrupt Enable */
+#define SB105X_AFR_AFEN 0x01 /* 256-byte FIFO Enable */
+
+#define SB105X_XRCR 2 /* Xoff Re-transmit Count Register */
+#define SB105X_XRCR_NRC1 0x00 /* Transmits Xoff Character whenever the number of received data is 1 during XOFF status */
+#define SB105X_XRCR_NRC4 0x01 /* Transmits Xoff Character whenever the number of received data is 4 during XOFF status */
+#define SB105X_XRCR_NRC8 0x02 /* Transmits Xoff Character whenever the number of received data is 8 during XOFF status */
+#define SB105X_XRCR_NRC16 0x03 /* Transmits Xoff Character whenever the number of received data is 16 during XOFF status */
+
+#define SB105X_TTR 4 /* Transmit FIFO Trigger Level Register */
+#define SB105X_RTR 5 /* Receive FIFO Trigger Level Register */
+#define SB105X_FUR 6 /* Flow Control Upper Threshold Register */
+#define SB105X_FLR 7 /* Flow Control Lower Threshold Register */
+
+
+/* page 0 */
+
+#define SB105X_GET_CHAR(port) inb((port)->iobase + SB105X_RX)
+#define SB105X_GET_IER(port) inb((port)->iobase + SB105X_IER)
+#define SB105X_GET_ISR(port) inb((port)->iobase + SB105X_ISR)
+#define SB105X_GET_LCR(port) inb((port)->iobase + SB105X_LCR)
+#define SB105X_GET_MCR(port) inb((port)->iobase + SB105X_MCR)
+#define SB105X_GET_LSR(port) inb((port)->iobase + SB105X_LSR)
+#define SB105X_GET_MSR(port) inb((port)->iobase + SB105X_MSR)
+#define SB105X_GET_SPR(port) inb((port)->iobase + SB105X_SPR)
+
+#define SB105X_PUT_CHAR(port,v) outb((v),(port)->iobase + SB105X_TX )
+#define SB105X_PUT_IER(port,v) outb((v),(port)->iobase + SB105X_IER )
+#define SB105X_PUT_FCR(port,v) outb((v),(port)->iobase + SB105X_FCR )
+#define SB105X_PUT_LCR(port,v) outb((v),(port)->iobase + SB105X_LCR )
+#define SB105X_PUT_MCR(port,v) outb((v),(port)->iobase + SB105X_MCR )
+#define SB105X_PUT_SPR(port,v) outb((v),(port)->iobase + SB105X_SPR )
+
+
+/* page 1 */
+#define SB105X_GET_REG(port,reg) inb((port)->iobase + (reg))
+#define SB105X_PUT_REG(port,reg,v) outb((v),(port)->iobase + (reg))
+
+/* page 2 */
+
+#define SB105X_PUT_PSR(port,v) outb((v),(port)->iobase + SB105X_PSR )
+
+#endif
diff --git a/drivers/staging/sb105x/sb_pci_mp.c b/drivers/staging/sb105x/sb_pci_mp.c
new file mode 100644
index 0000000..a3ff9bf
--- /dev/null
+++ b/drivers/staging/sb105x/sb_pci_mp.c
@@ -0,0 +1,3198 @@
+#include "sb_pci_mp.h"
+#include <linux/module.h>
+#include <linux/parport.h>
+
+extern struct parport *parport_pc_probe_port(unsigned long base_lo,
+ unsigned long base_hi,
+ int irq, int dma,
+ struct device *dev,
+ int irqflags);
+
+static struct mp_device_t mp_devs[MAX_MP_DEV];
+static int mp_nrpcibrds = sizeof(mp_pciboards)/sizeof(mppcibrd_t);
+static int NR_BOARD=0;
+static int NR_PORTS=0;
+static struct mp_port multi_ports[MAX_MP_PORT];
+static struct irq_info irq_lists[NR_IRQS];
+
+static _INLINE_ unsigned int serial_in(struct mp_port *mtpt, int offset);
+static _INLINE_ void serial_out(struct mp_port *mtpt, int offset, int value);
+static _INLINE_ unsigned int read_option_register(struct mp_port *mtpt, int offset);
+static int sb1054_get_register(struct sb_uart_port * port, int page, int reg);
+static int sb1054_set_register(struct sb_uart_port * port, int page, int reg, int value);
+static void SendATCommand(struct mp_port * mtpt);
+static int set_deep_fifo(struct sb_uart_port * port, int status);
+static int get_deep_fifo(struct sb_uart_port * port);
+static int get_device_type(int arg);
+static int set_auto_rts(struct sb_uart_port *port, int status);
+static void mp_stop(struct tty_struct *tty);
+static void __mp_start(struct tty_struct *tty);
+static void mp_start(struct tty_struct *tty);
+static void mp_tasklet_action(unsigned long data);
+static inline void mp_update_mctrl(struct sb_uart_port *port, unsigned int set, unsigned int clear);
+static int mp_startup(struct sb_uart_state *state, int init_hw);
+static void mp_shutdown(struct sb_uart_state *state);
+static void mp_change_speed(struct sb_uart_state *state, struct MP_TERMIOS *old_termios);
+
+static inline int __mp_put_char(struct sb_uart_port *port, struct circ_buf *circ, unsigned char c);
+static int mp_put_char(struct tty_struct *tty, unsigned char ch);
+
+static void mp_put_chars(struct tty_struct *tty);
+static int mp_write(struct tty_struct *tty, const unsigned char * buf, int count);
+static int mp_write_room(struct tty_struct *tty);
+static int mp_chars_in_buffer(struct tty_struct *tty);
+static void mp_flush_buffer(struct tty_struct *tty);
+static void mp_send_xchar(struct tty_struct *tty, char ch);
+static void mp_throttle(struct tty_struct *tty);
+static void mp_unthrottle(struct tty_struct *tty);
+static int mp_get_info(struct sb_uart_state *state, struct serial_struct *retinfo);
+static int mp_set_info(struct sb_uart_state *state, struct serial_struct *newinfo);
+static int mp_get_lsr_info(struct sb_uart_state *state, unsigned int *value);
+
+static int mp_tiocmget(struct tty_struct *tty);
+static int mp_tiocmset(struct tty_struct *tty, unsigned int set, unsigned int clear);
+static int mp_break_ctl(struct tty_struct *tty, int break_state);
+static int mp_do_autoconfig(struct sb_uart_state *state);
+static int mp_wait_modem_status(struct sb_uart_state *state, unsigned long arg);
+static int mp_get_count(struct sb_uart_state *state, struct serial_icounter_struct *icnt);
+static int mp_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg);
+static void mp_set_termios(struct tty_struct *tty, struct MP_TERMIOS *old_termios);
+static void mp_close(struct tty_struct *tty, struct file *filp);
+static void mp_wait_until_sent(struct tty_struct *tty, int timeout);
+static void mp_hangup(struct tty_struct *tty);
+static void mp_update_termios(struct sb_uart_state *state);
+static int mp_block_til_ready(struct file *filp, struct sb_uart_state *state);
+static struct sb_uart_state *uart_get(struct uart_driver *drv, int line);
+static int mp_open(struct tty_struct *tty, struct file *filp);
+static const char *mp_type(struct sb_uart_port *port);
+static void mp_change_pm(struct sb_uart_state *state, int pm_state);
+static inline void mp_report_port(struct uart_driver *drv, struct sb_uart_port *port);
+static void mp_configure_port(struct uart_driver *drv, struct sb_uart_state *state, struct sb_uart_port *port);
+static void mp_unconfigure_port(struct uart_driver *drv, struct sb_uart_state *state);
+static int mp_register_driver(struct uart_driver *drv);
+static void mp_unregister_driver(struct uart_driver *drv);
+static int mp_add_one_port(struct uart_driver *drv, struct sb_uart_port *port);
+static int mp_remove_one_port(struct uart_driver *drv, struct sb_uart_port *port);
+static void autoconfig(struct mp_port *mtpt, unsigned int probeflags);
+static void autoconfig_irq(struct mp_port *mtpt);
+static void multi_stop_tx(struct sb_uart_port *port);
+static void multi_start_tx(struct sb_uart_port *port);
+static void multi_stop_rx(struct sb_uart_port *port);
+static void multi_enable_ms(struct sb_uart_port *port);
+static _INLINE_ void receive_chars(struct mp_port *mtpt, int *status );
+static _INLINE_ void transmit_chars(struct mp_port *mtpt);
+static _INLINE_ void check_modem_status(struct mp_port *mtpt);
+static inline void multi_handle_port(struct mp_port *mtpt);
+static irqreturn_t multi_interrupt(int irq, void *dev_id);
+static void serial_do_unlink(struct irq_info *i, struct mp_port *mtpt);
+static int serial_link_irq_chain(struct mp_port *mtpt);
+static void serial_unlink_irq_chain(struct mp_port *mtpt);
+static void multi_timeout(unsigned long data);
+static unsigned int multi_tx_empty(struct sb_uart_port *port);
+static unsigned int multi_get_mctrl(struct sb_uart_port *port);
+static void multi_set_mctrl(struct sb_uart_port *port, unsigned int mctrl);
+static void multi_break_ctl(struct sb_uart_port *port, int break_state);
+static int multi_startup(struct sb_uart_port *port);
+static void multi_shutdown(struct sb_uart_port *port);
+static unsigned int multi_get_divisor(struct sb_uart_port *port, unsigned int baud);
+static void multi_set_termios(struct sb_uart_port *port, struct MP_TERMIOS *termios, struct MP_TERMIOS *old);
+static void multi_pm(struct sb_uart_port *port, unsigned int state, unsigned int oldstate);
+static void multi_release_std_resource(struct mp_port *mtpt);
+static void multi_release_port(struct sb_uart_port *port);
+static int multi_request_port(struct sb_uart_port *port);
+static void multi_config_port(struct sb_uart_port *port, int flags);
+static int multi_verify_port(struct sb_uart_port *port, struct serial_struct *ser);
+static const char * multi_type(struct sb_uart_port *port);
+static void __init multi_init_ports(void);
+static void __init multi_register_ports(struct uart_driver *drv);
+static int init_mp_dev(struct pci_dev *pcidev, mppcibrd_t brd);
+
+static int deep[256];
+static int deep_count;
+static int fcr_arr[256];
+static int fcr_count;
+static int ttr[256];
+static int ttr_count;
+static int rtr[256];
+static int rtr_count;
+
+module_param_array(deep,int,&deep_count,0);
+module_param_array(fcr_arr,int,&fcr_count,0);
+module_param_array(ttr,int,&ttr_count,0);
+module_param_array(rtr,int,&rtr_count,0);
+
+static _INLINE_ unsigned int serial_in(struct mp_port *mtpt, int offset)
+{
+ return inb(mtpt->port.iobase + offset);
+}
+
+static _INLINE_ void serial_out(struct mp_port *mtpt, int offset, int value)
+{
+ outb(value, mtpt->port.iobase + offset);
+}
+
+static _INLINE_ unsigned int read_option_register(struct mp_port *mtpt, int offset)
+{
+ return inb(mtpt->option_base_addr + offset);
+}
+
+static int sb1053a_get_interface(struct mp_port *mtpt, int port_num)
+{
+ unsigned long option_base_addr = mtpt->option_base_addr;
+ unsigned int interface = 0;
+
+ switch (port_num)
+ {
+ case 0:
+ case 1:
+ /* set GPO[1:0] = 00 */
+ outb(0x00, option_base_addr + MP_OPTR_GPODR);
+ break;
+ case 2:
+ case 3:
+ /* set GPO[1:0] = 01 */
+ outb(0x01, option_base_addr + MP_OPTR_GPODR);
+ break;
+ case 4:
+ case 5:
+ /* set GPO[1:0] = 10 */
+ outb(0x02, option_base_addr + MP_OPTR_GPODR);
+ break;
+ default:
+ break;
+ }
+
+ port_num &= 0x1;
+
+ /* get interface */
+ interface = inb(option_base_addr + MP_OPTR_IIR0 + port_num);
+
+ /* set GPO[1:0] = 11 */
+ outb(0x03, option_base_addr + MP_OPTR_GPODR);
+
+ return (interface);
+}
+
+static int sb1054_get_register(struct sb_uart_port * port, int page, int reg)
+{
+ int ret = 0;
+ unsigned int lcr = 0;
+ unsigned int mcr = 0;
+ unsigned int tmp = 0;
+
+ if( page <= 0)
+ {
+ printk(" page 0 can not use this fuction\n");
+ return -1;
+ }
+
+ switch(page)
+ {
+ case 1:
+ lcr = SB105X_GET_LCR(port);
+ tmp = lcr | SB105X_LCR_DLAB;
+ SB105X_PUT_LCR(port, tmp);
+
+ tmp = SB105X_GET_LCR(port);
+
+ ret = SB105X_GET_REG(port,reg);
+ SB105X_PUT_LCR(port,lcr);
+ break;
+ case 2:
+ mcr = SB105X_GET_MCR(port);
+ tmp = mcr | SB105X_MCR_P2S;
+ SB105X_PUT_MCR(port,tmp);
+
+ ret = SB105X_GET_REG(port,reg);
+
+ SB105X_PUT_MCR(port,mcr);
+ break;
+ case 3:
+ lcr = SB105X_GET_LCR(port);
+ tmp = lcr | SB105X_LCR_BF;
+ SB105X_PUT_LCR(port,tmp);
+ SB105X_PUT_REG(port,SB105X_PSR,SB105X_PSR_P3KEY);
+
+ ret = SB105X_GET_REG(port,reg);
+
+ SB105X_PUT_LCR(port,lcr);
+ break;
+ case 4:
+ lcr = SB105X_GET_LCR(port);
+ tmp = lcr | SB105X_LCR_BF;
+ SB105X_PUT_LCR(port,tmp);
+ SB105X_PUT_REG(port,SB105X_PSR,SB105X_PSR_P4KEY);
+
+ ret = SB105X_GET_REG(port,reg);
+
+ SB105X_PUT_LCR(port,lcr);
+ break;
+ default:
+ printk(" error invalid page number \n");
+ return -1;
+ }
+
+ return ret;
+}
+
+static int sb1054_set_register(struct sb_uart_port * port, int page, int reg, int value)
+{
+ int lcr = 0;
+ int mcr = 0;
+ int ret = 0;
+
+ if( page <= 0)
+ {
+ printk(" page 0 can not use this fuction\n");
+ return -1;
+ }
+ switch(page)
+ {
+ case 1:
+ lcr = SB105X_GET_LCR(port);
+ SB105X_PUT_LCR(port, lcr | SB105X_LCR_DLAB);
+
+ SB105X_PUT_REG(port,reg,value);
+
+ SB105X_PUT_LCR(port, lcr);
+ ret = 1;
+ break;
+ case 2:
+ mcr = SB105X_GET_MCR(port);
+ SB105X_PUT_MCR(port, mcr | SB105X_MCR_P2S);
+
+ SB105X_PUT_REG(port,reg,value);
+
+ SB105X_PUT_MCR(port, mcr);
+ ret = 1;
+ break;
+ case 3:
+ lcr = SB105X_GET_LCR(port);
+ SB105X_PUT_LCR(port, lcr | SB105X_LCR_BF);
+ SB105X_PUT_PSR(port, SB105X_PSR_P3KEY);
+
+ SB105X_PUT_REG(port,reg,value);
+
+ SB105X_PUT_LCR(port, lcr);
+ ret = 1;
+ break;
+ case 4:
+ lcr = SB105X_GET_LCR(port);
+ SB105X_PUT_LCR(port, lcr | SB105X_LCR_BF);
+ SB105X_PUT_PSR(port, SB105X_PSR_P4KEY);
+
+ SB105X_PUT_REG(port,reg,value);
+
+ SB105X_PUT_LCR(port, lcr);
+ ret = 1;
+ break;
+ default:
+ printk(" error invalid page number \n");
+ return -1;
+ }
+
+ return ret;
+}
+
+static int set_multidrop_mode(struct sb_uart_port *port, unsigned int mode)
+{
+ int mdr = SB105XA_MDR_NPS;
+
+ if (mode & MDMODE_ENABLE)
+ {
+ mdr |= SB105XA_MDR_MDE;
+ }
+
+ if (1) //(mode & MDMODE_AUTO)
+ {
+ int efr = 0;
+ mdr |= SB105XA_MDR_AME;
+ efr = sb1054_get_register(port, PAGE_3, SB105X_EFR);
+ efr |= SB105X_EFR_SCD;
+ sb1054_set_register(port, PAGE_3, SB105X_EFR, efr);
+ }
+
+ sb1054_set_register(port, PAGE_1, SB105XA_MDR, mdr);
+ port->mdmode &= ~0x6;
+ port->mdmode |= mode;
+ printk("[%d] multidrop init: %x\n", port->line, port->mdmode);
+
+ return 0;
+}
+
+static int get_multidrop_addr(struct sb_uart_port *port)
+{
+ return sb1054_get_register(port, PAGE_3, SB105X_XOFF2);
+}
+
+static int set_multidrop_addr(struct sb_uart_port *port, unsigned int addr)
+{
+ sb1054_set_register(port, PAGE_3, SB105X_XOFF2, addr);
+
+ return 0;
+}
+
+static void SendATCommand(struct mp_port * mtpt)
+{
+ // a t cr lf
+ unsigned char ch[] = {0x61,0x74,0x0d,0x0a,0x0};
+ unsigned char lineControl;
+ unsigned char i=0;
+ unsigned char Divisor = 0xc;
+
+ lineControl = serial_inp(mtpt,UART_LCR);
+ serial_outp(mtpt,UART_LCR,(lineControl | UART_LCR_DLAB));
+ serial_outp(mtpt,UART_DLL,(Divisor & 0xff));
+ serial_outp(mtpt,UART_DLM,(Divisor & 0xff00)>>8); //baudrate is 4800
+
+
+ serial_outp(mtpt,UART_LCR,lineControl);
+ serial_outp(mtpt,UART_LCR,0x03); // N-8-1
+ serial_outp(mtpt,UART_FCR,7);
+ serial_outp(mtpt,UART_MCR,0x3);
+ while(ch[i]){
+ while((serial_inp(mtpt,UART_LSR) & 0x60) !=0x60){
+ ;
+ }
+ serial_outp(mtpt,0,ch[i++]);
+ }
+
+
+}// end of SendATCommand()
+
+static int set_deep_fifo(struct sb_uart_port * port, int status)
+{
+ int afr_status = 0;
+ afr_status = sb1054_get_register(port, PAGE_4, SB105X_AFR);
+
+ if(status == ENABLE)
+ {
+ afr_status |= SB105X_AFR_AFEN;
+ }
+ else
+ {
+ afr_status &= ~SB105X_AFR_AFEN;
+ }
+
+ sb1054_set_register(port,PAGE_4,SB105X_AFR,afr_status);
+ sb1054_set_register(port,PAGE_4,SB105X_TTR,ttr[port->line]);
+ sb1054_set_register(port,PAGE_4,SB105X_RTR,rtr[port->line]);
+ afr_status = sb1054_get_register(port, PAGE_4, SB105X_AFR);
+
+ return afr_status;
+}
+
+static int get_device_type(int arg)
+{
+ int ret;
+ ret = inb(mp_devs[arg].option_reg_addr+MP_OPTR_DIR0);
+ ret = (ret & 0xf0) >> 4;
+ switch (ret)
+ {
+ case DIR_UART_16C550:
+ return PORT_16C55X;
+ case DIR_UART_16C1050:
+ return PORT_16C105X;
+ case DIR_UART_16C1050A:
+ /*
+ if (mtpt->port.line < 2)
+ {
+ return PORT_16C105XA;
+ }
+ else
+ {
+ if (mtpt->device->device_id & 0x50)
+ {
+ return PORT_16C55X;
+ }
+ else
+ {
+ return PORT_16C105X;
+ }
+ }*/
+ return PORT_16C105XA;
+ default:
+ return PORT_UNKNOWN;
+ }
+
+}
+static int get_deep_fifo(struct sb_uart_port * port)
+{
+ int afr_status = 0;
+ afr_status = sb1054_get_register(port, PAGE_4, SB105X_AFR);
+ return afr_status;
+}
+
+static int set_auto_rts(struct sb_uart_port *port, int status)
+{
+ int atr_status = 0;
+
+#if 0
+ int efr_status = 0;
+
+ efr_status = sb1054_get_register(port, PAGE_3, SB105X_EFR);
+ if(status == ENABLE)
+ efr_status |= SB105X_EFR_ARTS;
+ else
+ efr_status &= ~SB105X_EFR_ARTS;
+ sb1054_set_register(port,PAGE_3,SB105X_EFR,efr_status);
+ efr_status = sb1054_get_register(port, PAGE_3, SB105X_EFR);
+#endif
+
+//ATR
+ atr_status = sb1054_get_register(port, PAGE_3, SB105X_ATR);
+ switch(status)
+ {
+ case RS422PTP:
+ atr_status = (SB105X_ATR_TPS) | (SB105X_ATR_A80);
+ break;
+ case RS422MD:
+ atr_status = (SB105X_ATR_TPS) | (SB105X_ATR_TCMS) | (SB105X_ATR_A80);
+ break;
+ case RS485NE:
+ atr_status = (SB105X_ATR_RCMS) | (SB105X_ATR_TPS) | (SB105X_ATR_TCMS) | (SB105X_ATR_A80);
+ break;
+ case RS485ECHO:
+ atr_status = (SB105X_ATR_TPS) | (SB105X_ATR_TCMS) | (SB105X_ATR_A80);
+ break;
+ }
+
+ sb1054_set_register(port,PAGE_3,SB105X_ATR,atr_status);
+ atr_status = sb1054_get_register(port, PAGE_3, SB105X_ATR);
+
+ return atr_status;
+}
+
+static void mp_stop(struct tty_struct *tty)
+{
+ struct sb_uart_state *state = tty->driver_data;
+ struct sb_uart_port *port = state->port;
+ unsigned long flags;
+
+ spin_lock_irqsave(&port->lock, flags);
+ port->ops->stop_tx(port);
+ spin_unlock_irqrestore(&port->lock, flags);
+}
+
+static void __mp_start(struct tty_struct *tty)
+{
+ struct sb_uart_state *state = tty->driver_data;
+ struct sb_uart_port *port = state->port;
+
+ if (!uart_circ_empty(&state->info->xmit) && state->info->xmit.buf &&
+ !tty->stopped && !tty->hw_stopped)
+ port->ops->start_tx(port);
+}
+
+static void mp_start(struct tty_struct *tty)
+{
+ __mp_start(tty);
+}
+
+static void mp_tasklet_action(unsigned long data)
+{
+ struct sb_uart_state *state = (struct sb_uart_state *)data;
+ struct tty_struct *tty;
+
+ printk("tasklet is called!\n");
+ tty = state->info->tty;
+ tty_wakeup(tty);
+}
+
+static inline void mp_update_mctrl(struct sb_uart_port *port, unsigned int set, unsigned int clear)
+{
+ unsigned int old;
+
+ old = port->mctrl;
+ port->mctrl = (old & ~clear) | set;
+ if (old != port->mctrl)
+ port->ops->set_mctrl(port, port->mctrl);
+}
+
+#define uart_set_mctrl(port,set) mp_update_mctrl(port,set,0)
+#define uart_clear_mctrl(port,clear) mp_update_mctrl(port,0,clear)
+
+static int mp_startup(struct sb_uart_state *state, int init_hw)
+{
+ struct sb_uart_info *info = state->info;
+ struct sb_uart_port *port = state->port;
+ unsigned long page;
+ int retval = 0;
+
+ if (info->flags & UIF_INITIALIZED)
+ return 0;
+
+ if (info->tty)
+ set_bit(TTY_IO_ERROR, &info->tty->flags);
+
+ if (port->type == PORT_UNKNOWN)
+ return 0;
+
+ if (!info->xmit.buf) {
+ page = get_zeroed_page(GFP_KERNEL);
+ if (!page)
+ return -ENOMEM;
+
+ info->xmit.buf = (unsigned char *) page;
+
+ uart_circ_clear(&info->xmit);
+ }
+
+ retval = port->ops->startup(port);
+ if (retval == 0) {
+ if (init_hw) {
+ mp_change_speed(state, NULL);
+
+ if (info->tty->termios->c_cflag & CBAUD)
+ uart_set_mctrl(port, TIOCM_RTS | TIOCM_DTR);
+ }
+
+ info->flags |= UIF_INITIALIZED;
+
+
+ clear_bit(TTY_IO_ERROR, &info->tty->flags);
+ }
+
+ if (retval && capable(CAP_SYS_ADMIN))
+ retval = 0;
+
+ return retval;
+}
+
+static void mp_shutdown(struct sb_uart_state *state)
+{
+ struct sb_uart_info *info = state->info;
+ struct sb_uart_port *port = state->port;
+
+ if (info->tty)
+ set_bit(TTY_IO_ERROR, &info->tty->flags);
+
+ if (info->flags & UIF_INITIALIZED) {
+ info->flags &= ~UIF_INITIALIZED;
+
+ if (!info->tty || (info->tty->termios->c_cflag & HUPCL))
+ uart_clear_mctrl(port, TIOCM_DTR | TIOCM_RTS);
+
+ wake_up_interruptible(&info->delta_msr_wait);
+
+ port->ops->shutdown(port);
+
+ synchronize_irq(port->irq);
+ }
+ tasklet_kill(&info->tlet);
+
+ if (info->xmit.buf) {
+ free_page((unsigned long)info->xmit.buf);
+ info->xmit.buf = NULL;
+ }
+}
+
+static void mp_change_speed(struct sb_uart_state *state, struct MP_TERMIOS *old_termios)
+{
+ struct tty_struct *tty = state->info->tty;
+ struct sb_uart_port *port = state->port;
+ struct MP_TERMIOS *termios;
+
+ if (!tty || !tty->termios || port->type == PORT_UNKNOWN)
+ return;
+
+ termios = tty->termios;
+
+ if (termios->c_cflag & CRTSCTS)
+ state->info->flags |= UIF_CTS_FLOW;
+ else
+ state->info->flags &= ~UIF_CTS_FLOW;
+
+ if (termios->c_cflag & CLOCAL)
+ state->info->flags &= ~UIF_CHECK_CD;
+ else
+ state->info->flags |= UIF_CHECK_CD;
+
+ port->ops->set_termios(port, termios, old_termios);
+}
+
+static inline int __mp_put_char(struct sb_uart_port *port, struct circ_buf *circ, unsigned char c)
+{
+ unsigned long flags;
+ int ret = 0;
+
+ if (!circ->buf)
+ return 0;
+
+ spin_lock_irqsave(&port->lock, flags);
+ if (uart_circ_chars_free(circ) != 0) {
+ circ->buf[circ->head] = c;
+ circ->head = (circ->head + 1) & (UART_XMIT_SIZE - 1);
+ ret = 1;
+ }
+ spin_unlock_irqrestore(&port->lock, flags);
+ return ret;
+}
+
+static int mp_put_char(struct tty_struct *tty, unsigned char ch)
+{
+ struct sb_uart_state *state = tty->driver_data;
+
+ return __mp_put_char(state->port, &state->info->xmit, ch);
+}
+
+static void mp_put_chars(struct tty_struct *tty)
+{
+ mp_start(tty);
+}
+
+static int mp_write(struct tty_struct *tty, const unsigned char * buf, int count)
+{
+ struct sb_uart_state *state = tty->driver_data;
+ struct sb_uart_port *port;
+ struct circ_buf *circ;
+ int c, ret = 0;
+
+ if (!state || !state->info) {
+ return -EL3HLT;
+ }
+
+ port = state->port;
+ circ = &state->info->xmit;
+
+ if (!circ->buf)
+ return 0;
+
+ while (1) {
+ c = CIRC_SPACE_TO_END(circ->head, circ->tail, UART_XMIT_SIZE);
+ if (count < c)
+ c = count;
+ if (c <= 0)
+ break;
+ memcpy(circ->buf + circ->head, buf, c);
+
+ circ->head = (circ->head + c) & (UART_XMIT_SIZE - 1);
+ buf += c;
+ count -= c;
+ ret += c;
+ }
+ mp_start(tty);
+ return ret;
+}
+
+static int mp_write_room(struct tty_struct *tty)
+{
+ struct sb_uart_state *state = tty->driver_data;
+
+ return uart_circ_chars_free(&state->info->xmit);
+}
+
+static int mp_chars_in_buffer(struct tty_struct *tty)
+{
+ struct sb_uart_state *state = tty->driver_data;
+
+ return uart_circ_chars_pending(&state->info->xmit);
+}
+
+static void mp_flush_buffer(struct tty_struct *tty)
+{
+ struct sb_uart_state *state = tty->driver_data;
+ struct sb_uart_port *port = state->port;
+ unsigned long flags;
+
+ if (!state || !state->info) {
+ return;
+ }
+
+ spin_lock_irqsave(&port->lock, flags);
+ uart_circ_clear(&state->info->xmit);
+ spin_unlock_irqrestore(&port->lock, flags);
+ wake_up_interruptible(&tty->write_wait);
+ tty_wakeup(tty);
+}
+
+static void mp_send_xchar(struct tty_struct *tty, char ch)
+{
+ struct sb_uart_state *state = tty->driver_data;
+ struct sb_uart_port *port = state->port;
+ unsigned long flags;
+
+ if (port->ops->send_xchar)
+ port->ops->send_xchar(port, ch);
+ else {
+ port->x_char = ch;
+ if (ch) {
+ spin_lock_irqsave(&port->lock, flags);
+ port->ops->start_tx(port);
+ spin_unlock_irqrestore(&port->lock, flags);
+ }
+ }
+}
+
+static void mp_throttle(struct tty_struct *tty)
+{
+ struct sb_uart_state *state = tty->driver_data;
+
+ if (I_IXOFF(tty))
+ mp_send_xchar(tty, STOP_CHAR(tty));
+
+ if (tty->termios->c_cflag & CRTSCTS)
+ uart_clear_mctrl(state->port, TIOCM_RTS);
+}
+
+static void mp_unthrottle(struct tty_struct *tty)
+{
+ struct sb_uart_state *state = tty->driver_data;
+ struct sb_uart_port *port = state->port;
+
+ if (I_IXOFF(tty)) {
+ if (port->x_char)
+ port->x_char = 0;
+ else
+ mp_send_xchar(tty, START_CHAR(tty));
+ }
+
+ if (tty->termios->c_cflag & CRTSCTS)
+ uart_set_mctrl(port, TIOCM_RTS);
+}
+
+static int mp_get_info(struct sb_uart_state *state, struct serial_struct *retinfo)
+{
+ struct sb_uart_port *port = state->port;
+ struct serial_struct tmp;
+
+ memset(&tmp, 0, sizeof(tmp));
+ tmp.type = port->type;
+ tmp.line = port->line;
+ tmp.port = port->iobase;
+ if (HIGH_BITS_OFFSET)
+ tmp.port_high = (long) port->iobase >> HIGH_BITS_OFFSET;
+ tmp.irq = port->irq;
+ tmp.flags = port->flags;
+ tmp.xmit_fifo_size = port->fifosize;
+ tmp.baud_base = port->uartclk / 16;
+ tmp.close_delay = state->close_delay;
+ tmp.closing_wait = state->closing_wait == USF_CLOSING_WAIT_NONE ?
+ ASYNC_CLOSING_WAIT_NONE :
+ state->closing_wait;
+ tmp.custom_divisor = port->custom_divisor;
+ tmp.hub6 = port->hub6;
+ tmp.io_type = port->iotype;
+ tmp.iomem_reg_shift = port->regshift;
+ tmp.iomem_base = (void *)port->mapbase;
+
+ if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
+ return -EFAULT;
+ return 0;
+}
+
+static int mp_set_info(struct sb_uart_state *state, struct serial_struct *newinfo)
+{
+ struct serial_struct new_serial;
+ struct sb_uart_port *port = state->port;
+ unsigned long new_port;
+ unsigned int change_irq, change_port, closing_wait;
+ unsigned int old_custom_divisor;
+ unsigned int old_flags, new_flags;
+ int retval = 0;
+
+ if (copy_from_user(&new_serial, newinfo, sizeof(new_serial)))
+ return -EFAULT;
+
+ new_port = new_serial.port;
+ if (HIGH_BITS_OFFSET)
+ new_port += (unsigned long) new_serial.port_high << HIGH_BITS_OFFSET;
+
+ new_serial.irq = irq_canonicalize(new_serial.irq);
+
+ closing_wait = new_serial.closing_wait == ASYNC_CLOSING_WAIT_NONE ?
+ USF_CLOSING_WAIT_NONE : new_serial.closing_wait;
+ MP_STATE_LOCK(state);
+
+ change_irq = new_serial.irq != port->irq;
+ change_port = new_port != port->iobase ||
+ (unsigned long)new_serial.iomem_base != port->mapbase ||
+ new_serial.hub6 != port->hub6 ||
+ new_serial.io_type != port->iotype ||
+ new_serial.iomem_reg_shift != port->regshift ||
+ new_serial.type != port->type;
+ old_flags = port->flags;
+ new_flags = new_serial.flags;
+ old_custom_divisor = port->custom_divisor;
+
+ if (!capable(CAP_SYS_ADMIN)) {
+ retval = -EPERM;
+ if (change_irq || change_port ||
+ (new_serial.baud_base != port->uartclk / 16) ||
+ (new_serial.close_delay != state->close_delay) ||
+ (closing_wait != state->closing_wait) ||
+ (new_serial.xmit_fifo_size != port->fifosize) ||
+ (((new_flags ^ old_flags) & ~UPF_USR_MASK) != 0))
+ goto exit;
+ port->flags = ((port->flags & ~UPF_USR_MASK) |
+ (new_flags & UPF_USR_MASK));
+ port->custom_divisor = new_serial.custom_divisor;
+ goto check_and_exit;
+ }
+
+ if (port->ops->verify_port)
+ retval = port->ops->verify_port(port, &new_serial);
+
+ if ((new_serial.irq >= NR_IRQS) || (new_serial.irq < 0) ||
+ (new_serial.baud_base < 9600))
+ retval = -EINVAL;
+
+ if (retval)
+ goto exit;
+
+ if (change_port || change_irq) {
+ retval = -EBUSY;
+
+ if (uart_users(state) > 1)
+ goto exit;
+
+ mp_shutdown(state);
+ }
+
+ if (change_port) {
+ unsigned long old_iobase, old_mapbase;
+ unsigned int old_type, old_iotype, old_hub6, old_shift;
+
+ old_iobase = port->iobase;
+ old_mapbase = port->mapbase;
+ old_type = port->type;
+ old_hub6 = port->hub6;
+ old_iotype = port->iotype;
+ old_shift = port->regshift;
+
+ if (old_type != PORT_UNKNOWN)
+ port->ops->release_port(port);
+
+ port->iobase = new_port;
+ port->type = new_serial.type;
+ port->hub6 = new_serial.hub6;
+ port->iotype = new_serial.io_type;
+ port->regshift = new_serial.iomem_reg_shift;
+ port->mapbase = (unsigned long)new_serial.iomem_base;
+
+ if (port->type != PORT_UNKNOWN) {
+ retval = port->ops->request_port(port);
+ } else {
+ retval = 0;
+ }
+
+ if (retval && old_type != PORT_UNKNOWN) {
+ port->iobase = old_iobase;
+ port->type = old_type;
+ port->hub6 = old_hub6;
+ port->iotype = old_iotype;
+ port->regshift = old_shift;
+ port->mapbase = old_mapbase;
+ retval = port->ops->request_port(port);
+ if (retval)
+ port->type = PORT_UNKNOWN;
+
+ retval = -EBUSY;
+ }
+ }
+
+ port->irq = new_serial.irq;
+ port->uartclk = new_serial.baud_base * 16;
+ port->flags = (port->flags & ~UPF_CHANGE_MASK) |
+ (new_flags & UPF_CHANGE_MASK);
+ port->custom_divisor = new_serial.custom_divisor;
+ state->close_delay = new_serial.close_delay;
+ state->closing_wait = closing_wait;
+ port->fifosize = new_serial.xmit_fifo_size;
+ if (state->info->tty)
+ state->info->tty->low_latency =
+ (port->flags & UPF_LOW_LATENCY) ? 1 : 0;
+
+check_and_exit:
+ retval = 0;
+ if (port->type == PORT_UNKNOWN)
+ goto exit;
+ if (state->info->flags & UIF_INITIALIZED) {
+ if (((old_flags ^ port->flags) & UPF_SPD_MASK) ||
+ old_custom_divisor != port->custom_divisor) {
+ if (port->flags & UPF_SPD_MASK) {
+ printk(KERN_NOTICE
+ "%s sets custom speed on ttyMP%d. This "
+ "is deprecated.\n", current->comm,
+ port->line);
+ }
+ mp_change_speed(state, NULL);
+ }
+ } else
+ retval = mp_startup(state, 1);
+exit:
+ MP_STATE_UNLOCK(state);
+ return retval;
+}
+
+
+static int mp_get_lsr_info(struct sb_uart_state *state, unsigned int *value)
+{
+ struct sb_uart_port *port = state->port;
+ unsigned int result;
+
+ result = port->ops->tx_empty(port);
+
+ if (port->x_char ||
+ ((uart_circ_chars_pending(&state->info->xmit) > 0) &&
+ !state->info->tty->stopped && !state->info->tty->hw_stopped))
+ result &= ~TIOCSER_TEMT;
+
+ return put_user(result, value);
+}
+
+static int mp_tiocmget(struct tty_struct *tty)
+{
+ struct sb_uart_state *state = tty->driver_data;
+ struct sb_uart_port *port = state->port;
+ int result = -EIO;
+
+ MP_STATE_LOCK(state);
+ if (!(tty->flags & (1 << TTY_IO_ERROR))) {
+ result = port->mctrl;
+ spin_lock_irq(&port->lock);
+ result |= port->ops->get_mctrl(port);
+ spin_unlock_irq(&port->lock);
+ }
+ MP_STATE_UNLOCK(state);
+ return result;
+}
+
+static int mp_tiocmset(struct tty_struct *tty, unsigned int set, unsigned int clear)
+{
+ struct sb_uart_state *state = tty->driver_data;
+ struct sb_uart_port *port = state->port;
+ int ret = -EIO;
+
+
+ MP_STATE_LOCK(state);
+ if (!(tty->flags & (1 << TTY_IO_ERROR))) {
+ mp_update_mctrl(port, set, clear);
+ ret = 0;
+ }
+ MP_STATE_UNLOCK(state);
+
+ return ret;
+}
+
+static int mp_break_ctl(struct tty_struct *tty, int break_state)
+{
+ struct sb_uart_state *state = tty->driver_data;
+ struct sb_uart_port *port = state->port;
+
+ MP_STATE_LOCK(state);
+
+ if (port->type != PORT_UNKNOWN)
+ port->ops->break_ctl(port, break_state);
+
+ MP_STATE_UNLOCK(state);
+ return 0;
+}
+
+static int mp_do_autoconfig(struct sb_uart_state *state)
+{
+ struct sb_uart_port *port = state->port;
+ int flags, ret;
+
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
+ if (mutex_lock_interruptible(&state->mutex))
+ return -ERESTARTSYS;
+ ret = -EBUSY;
+ if (uart_users(state) == 1) {
+ mp_shutdown(state);
+
+ if (port->type != PORT_UNKNOWN)
+ port->ops->release_port(port);
+
+ flags = UART_CONFIG_TYPE;
+ if (port->flags & UPF_AUTO_IRQ)
+ flags |= UART_CONFIG_IRQ;
+
+ port->ops->config_port(port, flags);
+
+ ret = mp_startup(state, 1);
+ }
+ MP_STATE_UNLOCK(state);
+ return ret;
+}
+
+static int mp_wait_modem_status(struct sb_uart_state *state, unsigned long arg)
+{
+ struct sb_uart_port *port = state->port;
+ DECLARE_WAITQUEUE(wait, current);
+ struct sb_uart_icount cprev, cnow;
+ int ret;
+
+ spin_lock_irq(&port->lock);
+ memcpy(&cprev, &port->icount, sizeof(struct sb_uart_icount));
+
+ port->ops->enable_ms(port);
+ spin_unlock_irq(&port->lock);
+
+ add_wait_queue(&state->info->delta_msr_wait, &wait);
+ for (;;) {
+ spin_lock_irq(&port->lock);
+ memcpy(&cnow, &port->icount, sizeof(struct sb_uart_icount));
+ spin_unlock_irq(&port->lock);
+
+ set_current_state(TASK_INTERRUPTIBLE);
+
+ if (((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) ||
+ ((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) ||
+ ((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) ||
+ ((arg & TIOCM_CTS) && (cnow.cts != cprev.cts))) {
+ ret = 0;
+ break;
+ }
+
+ schedule();
+
+ if (signal_pending(current)) {
+ ret = -ERESTARTSYS;
+ break;
+ }
+
+ cprev = cnow;
+ }
+
+ current->state = TASK_RUNNING;
+ remove_wait_queue(&state->info->delta_msr_wait, &wait);
+
+ return ret;
+}
+
+static int mp_get_count(struct sb_uart_state *state, struct serial_icounter_struct *icnt)
+{
+ struct serial_icounter_struct icount;
+ struct sb_uart_icount cnow;
+ struct sb_uart_port *port = state->port;
+
+ spin_lock_irq(&port->lock);
+ memcpy(&cnow, &port->icount, sizeof(struct sb_uart_icount));
+ spin_unlock_irq(&port->lock);
+
+ icount.cts = cnow.cts;
+ icount.dsr = cnow.dsr;
+ icount.rng = cnow.rng;
+ icount.dcd = cnow.dcd;
+ icount.rx = cnow.rx;
+ icount.tx = cnow.tx;
+ icount.frame = cnow.frame;
+ icount.overrun = cnow.overrun;
+ icount.parity = cnow.parity;
+ icount.brk = cnow.brk;
+ icount.buf_overrun = cnow.buf_overrun;
+
+ return copy_to_user(icnt, &icount, sizeof(icount)) ? -EFAULT : 0;
+}
+
+static int mp_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg)
+{
+ struct sb_uart_state *state = tty->driver_data;
+ struct mp_port *info = (struct mp_port *)state->port;
+ int ret = -ENOIOCTLCMD;
+
+
+ switch (cmd) {
+ case TIOCSMULTIDROP:
+ /* set multi-drop mode enable or disable, and default operation mode is H/W mode */
+ if (info->port.type == PORT_16C105XA)
+ {
+ //arg &= ~0x6;
+ //state->port->mdmode = 0;
+ return set_multidrop_mode((struct sb_uart_port *)info, (unsigned int)arg);
+ }
+ ret = -ENOTSUPP;
+ break;
+ case GETDEEPFIFO:
+ ret = get_deep_fifo(state->port);
+ return ret;
+ case SETDEEPFIFO:
+ ret = set_deep_fifo(state->port,arg);
+ deep[state->port->line] = arg;
+ return ret;
+ case SETTTR:
+ if (info->port.type == PORT_16C105X || info->port.type == PORT_16C105XA){
+ ret = sb1054_set_register(state->port,PAGE_4,SB105X_TTR,arg);
+ ttr[state->port->line] = arg;
+ }
+ return ret;
+ case SETRTR:
+ if (info->port.type == PORT_16C105X || info->port.type == PORT_16C105XA){
+ ret = sb1054_set_register(state->port,PAGE_4,SB105X_RTR,arg);
+ rtr[state->port->line] = arg;
+ }
+ return ret;
+ case GETTTR:
+ if (info->port.type == PORT_16C105X || info->port.type == PORT_16C105XA){
+ ret = sb1054_get_register(state->port,PAGE_4,SB105X_TTR);
+ }
+ return ret;
+ case GETRTR:
+ if (info->port.type == PORT_16C105X || info->port.type == PORT_16C105XA){
+ ret = sb1054_get_register(state->port,PAGE_4,SB105X_RTR);
+ }
+ return ret;
+
+ case SETFCR:
+ if (info->port.type == PORT_16C105X || info->port.type == PORT_16C105XA){
+ ret = sb1054_set_register(state->port,PAGE_1,SB105X_FCR,arg);
+ }
+ else{
+ serial_out(info,2,arg);
+ }
+
+ return ret;
+ case TIOCSMDADDR:
+ /* set multi-drop address */
+ if (info->port.type == PORT_16C105XA)
+ {
+ state->port->mdmode |= MDMODE_ADDR;
+ return set_multidrop_addr((struct sb_uart_port *)info, (unsigned int)arg);
+ }
+ ret = -ENOTSUPP;
+ break;
+
+ case TIOCGMDADDR:
+ /* set multi-drop address */
+ if ((info->port.type == PORT_16C105XA) && (state->port->mdmode & MDMODE_ADDR))
+ {
+ return get_multidrop_addr((struct sb_uart_port *)info);
+ }
+ ret = -ENOTSUPP;
+ break;
+
+ case TIOCSENDADDR:
+ /* send address in multi-drop mode */
+ if ((info->port.type == PORT_16C105XA)
+ && (state->port->mdmode & (MDMODE_ENABLE)))
+ {
+ if (mp_chars_in_buffer(tty) > 0)
+ {
+ tty_wait_until_sent(tty, 0);
+ }
+ //while ((serial_in(info, UART_LSR) & 0x60) != 0x60);
+ //while (sb1054_get_register(state->port, PAGE_2, SB105X_TFCR) != 0);
+ while ((serial_in(info, UART_LSR) & 0x60) != 0x60);
+ serial_out(info, UART_SCR, (int)arg);
+ }
+ break;
+
+ case TIOCGSERIAL:
+ ret = mp_get_info(state, (struct serial_struct *)arg);
+ break;
+
+ case TIOCSSERIAL:
+ ret = mp_set_info(state, (struct serial_struct *)arg);
+ break;
+
+ case TIOCSERCONFIG:
+ ret = mp_do_autoconfig(state);
+ break;
+
+ case TIOCSERGWILD: /* obsolete */
+ case TIOCSERSWILD: /* obsolete */
+ ret = 0;
+ break;
+ /* for Multiport */
+ case TIOCGNUMOFPORT: /* Get number of ports */
+ return NR_PORTS;
+ case TIOCGGETDEVID:
+ return mp_devs[arg].device_id;
+ case TIOCGGETREV:
+ return mp_devs[arg].revision;
+ case TIOCGGETNRPORTS:
+ return mp_devs[arg].nr_ports;
+ case TIOCGGETBDNO:
+ return NR_BOARD;
+ case TIOCGGETINTERFACE:
+ if (mp_devs[arg].revision == 0xc0)
+ {
+ /* for SB16C1053APCI */
+ return (sb1053a_get_interface(info, info->port.line));
+ }
+ else
+ {
+ return (inb(mp_devs[arg].option_reg_addr+MP_OPTR_IIR0+(state->port->line/8)));
+ }
+ case TIOCGGETPORTTYPE:
+ ret = get_device_type(arg);;
+ return ret;
+ case TIOCSMULTIECHO: /* set to multi-drop mode(RS422) or echo mode(RS485)*/
+ outb( ( inb(info->interface_config_addr) & ~0x03 ) | 0x01 ,
+ info->interface_config_addr);
+ return 0;
+ case TIOCSPTPNOECHO: /* set to multi-drop mode(RS422) or echo mode(RS485) */
+ outb( ( inb(info->interface_config_addr) & ~0x03 ) ,
+ info->interface_config_addr);
+ return 0;
+ }
+
+ if (ret != -ENOIOCTLCMD)
+ goto out;
+
+ if (tty->flags & (1 << TTY_IO_ERROR)) {
+ ret = -EIO;
+ goto out;
+ }
+
+ switch (cmd) {
+ case TIOCMIWAIT:
+ ret = mp_wait_modem_status(state, arg);
+ break;
+
+ case TIOCGICOUNT:
+ ret = mp_get_count(state, (struct serial_icounter_struct *)arg);
+ break;
+ }
+
+ if (ret != -ENOIOCTLCMD)
+ goto out;
+
+ MP_STATE_LOCK(state);
+ switch (cmd) {
+ case TIOCSERGETLSR: /* Get line status register */
+ ret = mp_get_lsr_info(state, (unsigned int *)arg);
+ break;
+
+ default: {
+ struct sb_uart_port *port = state->port;
+ if (port->ops->ioctl)
+ ret = port->ops->ioctl(port, cmd, arg);
+ break;
+ }
+ }
+
+ MP_STATE_UNLOCK(state);
+out:
+ return ret;
+}
+
+static void mp_set_termios(struct tty_struct *tty, struct MP_TERMIOS *old_termios)
+{
+ struct sb_uart_state *state = tty->driver_data;
+ unsigned long flags;
+ unsigned int cflag = tty->termios->c_cflag;
+
+#define RELEVANT_IFLAG(iflag) ((iflag) & (IGNBRK|BRKINT|IGNPAR|PARMRK|INPCK))
+
+ if ((cflag ^ old_termios->c_cflag) == 0 &&
+ RELEVANT_IFLAG(tty->termios->c_iflag ^ old_termios->c_iflag) == 0)
+ return;
+
+ mp_change_speed(state, old_termios);
+
+ if ((old_termios->c_cflag & CBAUD) && !(cflag & CBAUD))
+ uart_clear_mctrl(state->port, TIOCM_RTS | TIOCM_DTR);
+
+ if (!(old_termios->c_cflag & CBAUD) && (cflag & CBAUD)) {
+ unsigned int mask = TIOCM_DTR;
+ if (!(cflag & CRTSCTS) ||
+ !test_bit(TTY_THROTTLED, &tty->flags))
+ mask |= TIOCM_RTS;
+ uart_set_mctrl(state->port, mask);
+ }
+
+ if ((old_termios->c_cflag & CRTSCTS) && !(cflag & CRTSCTS)) {
+ spin_lock_irqsave(&state->port->lock, flags);
+ tty->hw_stopped = 0;
+ __mp_start(tty);
+ spin_unlock_irqrestore(&state->port->lock, flags);
+ }
+
+ if (!(old_termios->c_cflag & CRTSCTS) && (cflag & CRTSCTS)) {
+ spin_lock_irqsave(&state->port->lock, flags);
+ if (!(state->port->ops->get_mctrl(state->port) & TIOCM_CTS)) {
+ tty->hw_stopped = 1;
+ state->port->ops->stop_tx(state->port);
+ }
+ spin_unlock_irqrestore(&state->port->lock, flags);
+ }
+}
+
+static void mp_close(struct tty_struct *tty, struct file *filp)
+{
+ struct sb_uart_state *state = tty->driver_data;
+ struct sb_uart_port *port;
+
+ printk("mp_close!\n");
+ if (!state || !state->port)
+ return;
+
+ port = state->port;
+
+ printk("close1 %d\n", __LINE__);
+ MP_STATE_LOCK(state);
+
+ printk("close2 %d\n", __LINE__);
+ if (tty_hung_up_p(filp))
+ goto done;
+
+ printk("close3 %d\n", __LINE__);
+ if ((tty->count == 1) && (state->count != 1)) {
+ printk("mp_close: bad serial port count; tty->count is 1, "
+ "state->count is %d\n", state->count);
+ state->count = 1;
+ }
+ printk("close4 %d\n", __LINE__);
+ if (--state->count < 0) {
+ printk("rs_close: bad serial port count for ttyMP%d: %d\n",
+ port->line, state->count);
+ state->count = 0;
+ }
+ if (state->count)
+ goto done;
+
+ tty->closing = 1;
+
+ printk("close5 %d\n", __LINE__);
+ if (state->closing_wait != USF_CLOSING_WAIT_NONE)
+ tty_wait_until_sent(tty, state->closing_wait);
+
+ printk("close6 %d\n", __LINE__);
+ if (state->info->flags & UIF_INITIALIZED) {
+ unsigned long flags;
+ spin_lock_irqsave(&port->lock, flags);
+ port->ops->stop_rx(port);
+ spin_unlock_irqrestore(&port->lock, flags);
+ mp_wait_until_sent(tty, port->timeout);
+ }
+ printk("close7 %d\n", __LINE__);
+
+ mp_shutdown(state);
+ printk("close8 %d\n", __LINE__);
+ mp_flush_buffer(tty);
+ tty_ldisc_flush(tty);
+ tty->closing = 0;
+ state->info->tty = NULL;
+ if (state->info->blocked_open)
+ {
+ if (state->close_delay)
+ {
+ set_current_state(TASK_INTERRUPTIBLE);
+ schedule_timeout(state->close_delay);
+ }
+ }
+ else
+ {
+ mp_change_pm(state, 3);
+ }
+ printk("close8 %d\n", __LINE__);
+
+ state->info->flags &= ~UIF_NORMAL_ACTIVE;
+ wake_up_interruptible(&state->info->open_wait);
+
+done:
+ printk("close done\n");
+ MP_STATE_UNLOCK(state);
+ module_put(THIS_MODULE);
+}
+
+static void mp_wait_until_sent(struct tty_struct *tty, int timeout)
+{
+ struct sb_uart_state *state = tty->driver_data;
+ struct sb_uart_port *port = state->port;
+ unsigned long char_time, expire;
+
+ if (port->type == PORT_UNKNOWN || port->fifosize == 0)
+ return;
+
+ char_time = (port->timeout - HZ/50) / port->fifosize;
+ char_time = char_time / 5;
+ if (char_time == 0)
+ char_time = 1;
+ if (timeout && timeout < char_time)
+ char_time = timeout;
+
+ if (timeout == 0 || timeout > 2 * port->timeout)
+ timeout = 2 * port->timeout;
+
+ expire = jiffies + timeout;
+
+ while (!port->ops->tx_empty(port)) {
+ set_current_state(TASK_INTERRUPTIBLE);
+ schedule_timeout(char_time);
+ if (signal_pending(current))
+ break;
+ if (time_after(jiffies, expire))
+ break;
+ }
+ set_current_state(TASK_RUNNING); /* might not be needed */
+}
+
+static void mp_hangup(struct tty_struct *tty)
+{
+ struct sb_uart_state *state = tty->driver_data;
+
+ MP_STATE_LOCK(state);
+ if (state->info && state->info->flags & UIF_NORMAL_ACTIVE) {
+ mp_flush_buffer(tty);
+ mp_shutdown(state);
+ state->count = 0;
+ state->info->flags &= ~UIF_NORMAL_ACTIVE;
+ state->info->tty = NULL;
+ wake_up_interruptible(&state->info->open_wait);
+ wake_up_interruptible(&state->info->delta_msr_wait);
+ }
+ MP_STATE_UNLOCK(state);
+}
+
+static void mp_update_termios(struct sb_uart_state *state)
+{
+ struct tty_struct *tty = state->info->tty;
+ struct sb_uart_port *port = state->port;
+
+ if (!(tty->flags & (1 << TTY_IO_ERROR))) {
+ mp_change_speed(state, NULL);
+
+ if (tty->termios->c_cflag & CBAUD)
+ uart_set_mctrl(port, TIOCM_DTR | TIOCM_RTS);
+ }
+}
+
+static int mp_block_til_ready(struct file *filp, struct sb_uart_state *state)
+{
+ DECLARE_WAITQUEUE(wait, current);
+ struct sb_uart_info *info = state->info;
+ struct sb_uart_port *port = state->port;
+ unsigned int mctrl;
+
+ info->blocked_open++;
+ state->count--;
+
+ add_wait_queue(&info->open_wait, &wait);
+ while (1) {
+ set_current_state(TASK_INTERRUPTIBLE);
+
+ if (tty_hung_up_p(filp) || info->tty == NULL)
+ break;
+
+ if (!(info->flags & UIF_INITIALIZED))
+ break;
+
+ if ((filp->f_flags & O_NONBLOCK) ||
+ (info->tty->termios->c_cflag & CLOCAL) ||
+ (info->tty->flags & (1 << TTY_IO_ERROR))) {
+ break;
+ }
+
+ if (info->tty->termios->c_cflag & CBAUD)
+ uart_set_mctrl(port, TIOCM_DTR);
+
+ spin_lock_irq(&port->lock);
+ port->ops->enable_ms(port);
+ mctrl = port->ops->get_mctrl(port);
+ spin_unlock_irq(&port->lock);
+ if (mctrl & TIOCM_CAR)
+ break;
+
+ MP_STATE_UNLOCK(state);
+ schedule();
+ MP_STATE_LOCK(state);
+
+ if (signal_pending(current))
+ break;
+ }
+ set_current_state(TASK_RUNNING);
+ remove_wait_queue(&info->open_wait, &wait);
+
+ state->count++;
+ info->blocked_open--;
+
+ if (signal_pending(current))
+ return -ERESTARTSYS;
+
+ if (!info->tty || tty_hung_up_p(filp))
+ return -EAGAIN;
+
+ return 0;
+}
+
+static struct sb_uart_state *uart_get(struct uart_driver *drv, int line)
+{
+ struct sb_uart_state *state;
+
+ MP_MUTEX_LOCK(mp_mutex);
+ state = drv->state + line;
+ if (mutex_lock_interruptible(&state->mutex)) {
+ state = ERR_PTR(-ERESTARTSYS);
+ goto out;
+ }
+ state->count++;
+ if (!state->port) {
+ state->count--;
+ MP_STATE_UNLOCK(state);
+ state = ERR_PTR(-ENXIO);
+ goto out;
+ }
+
+ if (!state->info) {
+ state->info = kmalloc(sizeof(struct sb_uart_info), GFP_KERNEL);
+ if (state->info) {
+ memset(state->info, 0, sizeof(struct sb_uart_info));
+ init_waitqueue_head(&state->info->open_wait);
+ init_waitqueue_head(&state->info->delta_msr_wait);
+
+ state->port->info = state->info;
+
+ tasklet_init(&state->info->tlet, mp_tasklet_action,
+ (unsigned long)state);
+ } else {
+ state->count--;
+ MP_STATE_UNLOCK(state);
+ state = ERR_PTR(-ENOMEM);
+ }
+ }
+
+out:
+ MP_MUTEX_UNLOCK(mp_mutex);
+ return state;
+}
+
+static int mp_open(struct tty_struct *tty, struct file *filp)
+{
+ struct uart_driver *drv = (struct uart_driver *)tty->driver->driver_state;
+ struct sb_uart_state *state;
+ int retval;
+ int line = tty->index;
+ struct mp_port *mtpt;
+
+ retval = -ENODEV;
+ if (line >= tty->driver->num)
+ goto fail;
+
+ state = uart_get(drv, line);
+
+ mtpt = (struct mp_port *)state->port;
+
+ if (IS_ERR(state)) {
+ retval = PTR_ERR(state);
+ goto fail;
+ }
+
+ tty->driver_data = state;
+ tty->low_latency = (state->port->flags & UPF_LOW_LATENCY) ? 1 : 0;
+ tty->alt_speed = 0;
+ state->info->tty = tty;
+
+ if (tty_hung_up_p(filp)) {
+ retval = -EAGAIN;
+ state->count--;
+ MP_STATE_UNLOCK(state);
+ goto fail;
+ }
+
+ if (state->count == 1)
+ mp_change_pm(state, 0);
+
+ retval = mp_startup(state, 0);
+
+ if (retval == 0)
+ retval = mp_block_til_ready(filp, state);
+ MP_STATE_UNLOCK(state);
+
+ if (retval == 0 && !(state->info->flags & UIF_NORMAL_ACTIVE)) {
+ state->info->flags |= UIF_NORMAL_ACTIVE;
+
+ mp_update_termios(state);
+ }
+
+ uart_clear_mctrl(state->port, TIOCM_RTS);
+ try_module_get(THIS_MODULE);
+fail:
+ return retval;
+}
+
+
+static const char *mp_type(struct sb_uart_port *port)
+{
+ const char *str = NULL;
+
+ if (port->ops->type)
+ str = port->ops->type(port);
+
+ if (!str)
+ str = "unknown";
+
+ return str;
+}
+
+static void mp_change_pm(struct sb_uart_state *state, int pm_state)
+{
+ struct sb_uart_port *port = state->port;
+ if (port->ops->pm)
+ port->ops->pm(port, pm_state, state->pm_state);
+ state->pm_state = pm_state;
+}
+
+static inline void mp_report_port(struct uart_driver *drv, struct sb_uart_port *port)
+{
+ char address[64];
+
+ switch (port->iotype) {
+ case UPIO_PORT:
+ snprintf(address, sizeof(address),"I/O 0x%x", port->iobase);
+ break;
+ case UPIO_HUB6:
+ snprintf(address, sizeof(address),"I/O 0x%x offset 0x%x", port->iobase, port->hub6);
+ break;
+ case UPIO_MEM:
+ snprintf(address, sizeof(address),"MMIO 0x%lx", port->mapbase);
+ break;
+ default:
+ snprintf(address, sizeof(address),"*unknown*" );
+ strlcpy(address, "*unknown*", sizeof(address));
+ break;
+ }
+
+ printk( "%s%d at %s (irq = %d) is a %s\n",
+ drv->dev_name, port->line, address, port->irq, mp_type(port));
+
+}
+
+static void mp_configure_port(struct uart_driver *drv, struct sb_uart_state *state, struct sb_uart_port *port)
+{
+ unsigned int flags;
+
+
+ if (!port->iobase && !port->mapbase && !port->membase)
+ {
+ DPRINTK("%s error \n",__FUNCTION__);
+ return;
+ }
+ flags = UART_CONFIG_TYPE;
+ if (port->flags & UPF_AUTO_IRQ)
+ flags |= UART_CONFIG_IRQ;
+ if (port->flags & UPF_BOOT_AUTOCONF) {
+ port->type = PORT_UNKNOWN;
+ port->ops->config_port(port, flags);
+ }
+
+ if (port->type != PORT_UNKNOWN) {
+ unsigned long flags;
+
+ mp_report_port(drv, port);
+
+ spin_lock_irqsave(&port->lock, flags);
+ port->ops->set_mctrl(port, 0);
+ spin_unlock_irqrestore(&port->lock, flags);
+
+ mp_change_pm(state, 3);
+ }
+}
+
+static void mp_unconfigure_port(struct uart_driver *drv, struct sb_uart_state *state)
+{
+ struct sb_uart_port *port = state->port;
+ struct sb_uart_info *info = state->info;
+
+ if (info && info->tty)
+ tty_hangup(info->tty);
+
+ MP_STATE_LOCK(state);
+
+ state->info = NULL;
+
+ if (port->type != PORT_UNKNOWN)
+ port->ops->release_port(port);
+
+ port->type = PORT_UNKNOWN;
+
+ if (info) {
+ tasklet_kill(&info->tlet);
+ kfree(info);
+ }
+
+ MP_STATE_UNLOCK(state);
+}
+static struct tty_operations mp_ops = {
+ .open = mp_open,
+ .close = mp_close,
+ .write = mp_write,
+ .put_char = mp_put_char,
+ .flush_chars = mp_put_chars,
+ .write_room = mp_write_room,
+ .chars_in_buffer= mp_chars_in_buffer,
+ .flush_buffer = mp_flush_buffer,
+ .ioctl = mp_ioctl,
+ .throttle = mp_throttle,
+ .unthrottle = mp_unthrottle,
+ .send_xchar = mp_send_xchar,
+ .set_termios = mp_set_termios,
+ .stop = mp_stop,
+ .start = mp_start,
+ .hangup = mp_hangup,
+ .break_ctl = mp_break_ctl,
+ .wait_until_sent= mp_wait_until_sent,
+#ifdef CONFIG_PROC_FS
+ .proc_fops = NULL,
+#endif
+ .tiocmget = mp_tiocmget,
+ .tiocmset = mp_tiocmset,
+};
+
+static int mp_register_driver(struct uart_driver *drv)
+{
+ struct tty_driver *normal = NULL;
+ int i, retval;
+
+ drv->state = kmalloc(sizeof(struct sb_uart_state) * drv->nr, GFP_KERNEL);
+ retval = -ENOMEM;
+ if (!drv->state)
+ {
+ printk("SB PCI Error: Kernel memory allocation error!\n");
+ goto out;
+ }
+ memset(drv->state, 0, sizeof(struct sb_uart_state) * drv->nr);
+
+ normal = alloc_tty_driver(drv->nr);
+ if (!normal)
+ {
+ printk("SB PCI Error: tty allocation error!\n");
+ goto out;
+ }
+
+ drv->tty_driver = normal;
+
+ normal->owner = drv->owner;
+ normal->magic = TTY_DRIVER_MAGIC;
+ normal->driver_name = drv->driver_name;
+ normal->name = drv->dev_name;
+ normal->major = drv->major;
+ normal->minor_start = drv->minor;
+
+ normal->num = MAX_MP_PORT ;
+
+ normal->type = TTY_DRIVER_TYPE_SERIAL;
+ normal->subtype = SERIAL_TYPE_NORMAL;
+ normal->init_termios = tty_std_termios;
+ normal->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL;
+ normal->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
+ normal->driver_state = drv;
+
+ tty_set_operations(normal, &mp_ops);
+
+for (i = 0; i < drv->nr; i++) {
+ struct sb_uart_state *state = drv->state + i;
+
+ state->close_delay = 500;
+ state->closing_wait = 30000;
+
+ mutex_init(&state->mutex);
+ }
+
+ retval = tty_register_driver(normal);
+out:
+ if (retval < 0) {
+ printk("Register tty driver Fail!\n");
+ put_tty_driver(normal);
+ kfree(drv->state);
+ }
+
+ return retval;
+}
+
+void mp_unregister_driver(struct uart_driver *drv)
+{
+ struct tty_driver *normal = NULL;
+
+ normal = drv->tty_driver;
+
+ if (!normal)
+ {
+ return;
+ }
+
+ tty_unregister_driver(normal);
+ put_tty_driver(normal);
+ drv->tty_driver = NULL;
+
+
+ if (drv->state)
+ {
+ kfree(drv->state);
+ }
+
+}
+
+static int mp_add_one_port(struct uart_driver *drv, struct sb_uart_port *port)
+{
+ struct sb_uart_state *state;
+ int ret = 0;
+
+
+ if (port->line >= drv->nr)
+ return -EINVAL;
+
+ state = drv->state + port->line;
+
+ MP_MUTEX_LOCK(mp_mutex);
+ if (state->port) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ state->port = port;
+
+ spin_lock_init(&port->lock);
+ port->cons = drv->cons;
+ port->info = state->info;
+
+ mp_configure_port(drv, state, port);
+
+ tty_register_device(drv->tty_driver, port->line, port->dev);
+
+out:
+ MP_MUTEX_UNLOCK(mp_mutex);
+
+
+ return ret;
+}
+
+static int mp_remove_one_port(struct uart_driver *drv, struct sb_uart_port *port)
+{
+ struct sb_uart_state *state = drv->state + port->line;
+
+ if (state->port != port)
+ printk(KERN_ALERT "Removing wrong port: %p != %p\n",
+ state->port, port);
+
+ MP_MUTEX_LOCK(mp_mutex);
+
+ tty_unregister_device(drv->tty_driver, port->line);
+
+ mp_unconfigure_port(drv, state);
+ state->port = NULL;
+ MP_MUTEX_UNLOCK(mp_mutex);
+
+ return 0;
+}
+
+static void autoconfig(struct mp_port *mtpt, unsigned int probeflags)
+{
+ unsigned char status1, scratch, scratch2, scratch3;
+ unsigned char save_lcr, save_mcr;
+ unsigned long flags;
+
+ unsigned char u_type;
+ unsigned char b_ret = 0;
+
+ if (!mtpt->port.iobase && !mtpt->port.mapbase && !mtpt->port.membase)
+ return;
+
+ DEBUG_AUTOCONF("ttyMP%d: autoconf (0x%04x, 0x%p): ",
+ mtpt->port.line, mtpt->port.iobase, mtpt->port.membase);
+
+ spin_lock_irqsave(&mtpt->port.lock, flags);
+
+ if (!(mtpt->port.flags & UPF_BUGGY_UART)) {
+ scratch = serial_inp(mtpt, UART_IER);
+ serial_outp(mtpt, UART_IER, 0);
+#ifdef __i386__
+ outb(0xff, 0x080);
+#endif
+ scratch2 = serial_inp(mtpt, UART_IER) & 0x0f;
+ serial_outp(mtpt, UART_IER, 0x0F);
+#ifdef __i386__
+ outb(0, 0x080);
+#endif
+ scratch3 = serial_inp(mtpt, UART_IER) & 0x0F;
+ serial_outp(mtpt, UART_IER, scratch);
+ if (scratch2 != 0 || scratch3 != 0x0F) {
+ DEBUG_AUTOCONF("IER test failed (%02x, %02x) ",
+ scratch2, scratch3);
+ goto out;
+ }
+ }
+
+ save_mcr = serial_in(mtpt, UART_MCR);
+ save_lcr = serial_in(mtpt, UART_LCR);
+
+ if (!(mtpt->port.flags & UPF_SKIP_TEST)) {
+ serial_outp(mtpt, UART_MCR, UART_MCR_LOOP | 0x0A);
+ status1 = serial_inp(mtpt, UART_MSR) & 0xF0;
+ serial_outp(mtpt, UART_MCR, save_mcr);
+ if (status1 != 0x90) {
+ DEBUG_AUTOCONF("LOOP test failed (%02x) ",
+ status1);
+ goto out;
+ }
+ }
+
+ serial_outp(mtpt, UART_LCR, 0xBF);
+ serial_outp(mtpt, UART_EFR, 0);
+ serial_outp(mtpt, UART_LCR, 0);
+
+ serial_outp(mtpt, UART_FCR, UART_FCR_ENABLE_FIFO);
+ scratch = serial_in(mtpt, UART_IIR) >> 6;
+
+ DEBUG_AUTOCONF("iir=%d ", scratch);
+ if(mtpt->device->nr_ports >= 8)
+ b_ret = read_option_register(mtpt,(MP_OPTR_DIR0 + ((mtpt->port.line)/8)));
+ else
+ b_ret = read_option_register(mtpt,MP_OPTR_DIR0);
+ u_type = (b_ret & 0xf0) >> 4;
+ if(mtpt->port.type == PORT_UNKNOWN )
+ {
+ switch (u_type)
+ {
+ case DIR_UART_16C550:
+ mtpt->port.type = PORT_16C55X;
+ break;
+ case DIR_UART_16C1050:
+ mtpt->port.type = PORT_16C105X;
+ break;
+ case DIR_UART_16C1050A:
+ if (mtpt->port.line < 2)
+ {
+ mtpt->port.type = PORT_16C105XA;
+ }
+ else
+ {
+ if (mtpt->device->device_id & 0x50)
+ {
+ mtpt->port.type = PORT_16C55X;
+ }
+ else
+ {
+ mtpt->port.type = PORT_16C105X;
+ }
+ }
+ break;
+ default:
+ mtpt->port.type = PORT_UNKNOWN;
+ break;
+ }
+ }
+
+ if(mtpt->port.type == PORT_UNKNOWN )
+ {
+printk("unknow2\n");
+ switch (scratch) {
+ case 0:
+ case 1:
+ mtpt->port.type = PORT_UNKNOWN;
+ break;
+ case 2:
+ case 3:
+ mtpt->port.type = PORT_16C55X;
+ break;
+ }
+ }
+
+ serial_outp(mtpt, UART_LCR, save_lcr);
+
+ mtpt->port.fifosize = uart_config[mtpt->port.type].dfl_xmit_fifo_size;
+ mtpt->capabilities = uart_config[mtpt->port.type].flags;
+
+ if (mtpt->port.type == PORT_UNKNOWN)
+ goto out;
+ serial_outp(mtpt, UART_MCR, save_mcr);
+ serial_outp(mtpt, UART_FCR, (UART_FCR_ENABLE_FIFO |
+ UART_FCR_CLEAR_RCVR |
+ UART_FCR_CLEAR_XMIT));
+ serial_outp(mtpt, UART_FCR, 0);
+ (void)serial_in(mtpt, UART_RX);
+ serial_outp(mtpt, UART_IER, 0);
+
+out:
+ spin_unlock_irqrestore(&mtpt->port.lock, flags);
+ DEBUG_AUTOCONF("type=%s\n", uart_config[mtpt->port.type].name);
+}
+
+static void autoconfig_irq(struct mp_port *mtpt)
+{
+ unsigned char save_mcr, save_ier;
+ unsigned long irqs;
+ int irq;
+
+ /* forget possible initially masked and pending IRQ */
+ probe_irq_off(probe_irq_on());
+ save_mcr = serial_inp(mtpt, UART_MCR);
+ save_ier = serial_inp(mtpt, UART_IER);
+ serial_outp(mtpt, UART_MCR, UART_MCR_OUT1 | UART_MCR_OUT2);
+
+ irqs = probe_irq_on();
+ serial_outp(mtpt, UART_MCR, 0);
+ serial_outp(mtpt, UART_MCR,
+ UART_MCR_DTR | UART_MCR_RTS | UART_MCR_OUT2);
+
+ serial_outp(mtpt, UART_IER, 0x0f); /* enable all intrs */
+ (void)serial_inp(mtpt, UART_LSR);
+ (void)serial_inp(mtpt, UART_RX);
+ (void)serial_inp(mtpt, UART_IIR);
+ (void)serial_inp(mtpt, UART_MSR);
+ serial_outp(mtpt, UART_TX, 0xFF);
+ irq = probe_irq_off(irqs);
+
+ serial_outp(mtpt, UART_MCR, save_mcr);
+ serial_outp(mtpt, UART_IER, save_ier);
+
+ mtpt->port.irq = (irq > 0) ? irq : 0;
+}
+
+static void multi_stop_tx(struct sb_uart_port *port)
+{
+ struct mp_port *mtpt = (struct mp_port *)port;
+
+ if (mtpt->ier & UART_IER_THRI) {
+ mtpt->ier &= ~UART_IER_THRI;
+ serial_out(mtpt, UART_IER, mtpt->ier);
+ }
+
+ tasklet_schedule(&port->info->tlet);
+}
+
+static void multi_start_tx(struct sb_uart_port *port)
+{
+ struct mp_port *mtpt = (struct mp_port *)port;
+
+ if (!(mtpt->ier & UART_IER_THRI)) {
+ mtpt->ier |= UART_IER_THRI;
+ serial_out(mtpt, UART_IER, mtpt->ier);
+ }
+}
+
+static void multi_stop_rx(struct sb_uart_port *port)
+{
+ struct mp_port *mtpt = (struct mp_port *)port;
+
+ mtpt->ier &= ~UART_IER_RLSI;
+ mtpt->port.read_status_mask &= ~UART_LSR_DR;
+ serial_out(mtpt, UART_IER, mtpt->ier);
+}
+
+static void multi_enable_ms(struct sb_uart_port *port)
+{
+ struct mp_port *mtpt = (struct mp_port *)port;
+
+ mtpt->ier |= UART_IER_MSI;
+ serial_out(mtpt, UART_IER, mtpt->ier);
+}
+
+
+static _INLINE_ void receive_chars(struct mp_port *mtpt, int *status )
+{
+ struct tty_struct *tty = mtpt->port.info->tty;
+ unsigned char lsr = *status;
+ int max_count = 256;
+ unsigned char ch;
+ char flag;
+
+ //lsr &= mtpt->port.read_status_mask;
+
+ do {
+ if ((lsr & UART_LSR_PE) && (mtpt->port.mdmode & MDMODE_ENABLE))
+ {
+ ch = serial_inp(mtpt, UART_RX);
+ }
+ else if (lsr & UART_LSR_SPECIAL)
+ {
+ flag = 0;
+ ch = serial_inp(mtpt, UART_RX);
+
+ if (lsr & UART_LSR_BI)
+ {
+
+ mtpt->port.icount.brk++;
+ flag = TTY_BREAK;
+
+ if (sb_uart_handle_break(&mtpt->port))
+ goto ignore_char;
+ }
+ if (lsr & UART_LSR_PE)
+ {
+ mtpt->port.icount.parity++;
+ flag = TTY_PARITY;
+ }
+ if (lsr & UART_LSR_FE)
+ {
+ mtpt->port.icount.frame++;
+ flag = TTY_FRAME;
+ }
+ if (lsr & UART_LSR_OE)
+ {
+ mtpt->port.icount.overrun++;
+ flag = TTY_OVERRUN;
+ }
+ tty_insert_flip_char(tty, ch, flag);
+ }
+ else
+ {
+ ch = serial_inp(mtpt, UART_RX);
+ tty_insert_flip_char(tty, ch, 0);
+ }
+ignore_char:
+ lsr = serial_inp(mtpt, UART_LSR);
+ } while ((lsr & UART_LSR_DR) && (max_count-- > 0));
+
+ tty_flip_buffer_push(tty);
+}
+
+
+
+
+static _INLINE_ void transmit_chars(struct mp_port *mtpt)
+{
+ struct circ_buf *xmit = &mtpt->port.info->xmit;
+ int count;
+
+ if (mtpt->port.x_char) {
+ serial_outp(mtpt, UART_TX, mtpt->port.x_char);
+ mtpt->port.icount.tx++;
+ mtpt->port.x_char = 0;
+ return;
+ }
+ if (uart_circ_empty(xmit) || uart_tx_stopped(&mtpt->port)) {
+ multi_stop_tx(&mtpt->port);
+ return;
+ }
+
+ count = uart_circ_chars_pending(xmit);
+
+ if(count > mtpt->port.fifosize)
+ {
+ count = mtpt->port.fifosize;
+ }
+
+ printk("[%d] mdmode: %x\n", mtpt->port.line, mtpt->port.mdmode);
+ do {
+#if 0
+ /* check multi-drop mode */
+ if ((mtpt->port.mdmode & (MDMODE_ENABLE | MDMODE_ADDR)) == (MDMODE_ENABLE | MDMODE_ADDR))
+ {
+ printk("send address\n");
+ /* send multi-drop address */
+ serial_out(mtpt, UART_SCR, xmit->buf[xmit->tail]);
+ }
+ else
+#endif
+ {
+ serial_out(mtpt, UART_TX, xmit->buf[xmit->tail]);
+ }
+ xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
+ mtpt->port.icount.tx++;
+ } while (--count > 0);
+}
+
+
+
+static _INLINE_ void check_modem_status(struct mp_port *mtpt)
+{
+ int status;
+
+ status = serial_in(mtpt, UART_MSR);
+
+ if ((status & UART_MSR_ANY_DELTA) == 0)
+ return;
+
+ if (status & UART_MSR_TERI)
+ mtpt->port.icount.rng++;
+ if (status & UART_MSR_DDSR)
+ mtpt->port.icount.dsr++;
+ if (status & UART_MSR_DDCD)
+ sb_uart_handle_dcd_change(&mtpt->port, status & UART_MSR_DCD);
+ if (status & UART_MSR_DCTS)
+ sb_uart_handle_cts_change(&mtpt->port, status & UART_MSR_CTS);
+
+ wake_up_interruptible(&mtpt->port.info->delta_msr_wait);
+}
+
+static inline void multi_handle_port(struct mp_port *mtpt)
+{
+ unsigned int status = serial_inp(mtpt, UART_LSR);
+
+ //printk("lsr: %x\n", status);
+
+ if ((status & UART_LSR_DR) || (status & UART_LSR_SPECIAL))
+ receive_chars(mtpt, &status);
+ check_modem_status(mtpt);
+ if (status & UART_LSR_THRE)
+ {
+ if ((mtpt->port.type == PORT_16C105X)
+ || (mtpt->port.type == PORT_16C105XA))
+ transmit_chars(mtpt);
+ else
+ {
+ if (mtpt->interface >= RS485NE)
+ uart_set_mctrl(&mtpt->port, TIOCM_RTS);
+
+ transmit_chars(mtpt);
+
+
+ if (mtpt->interface >= RS485NE)
+ {
+ while((status=serial_in(mtpt,UART_LSR) &0x60)!=0x60);
+ uart_clear_mctrl(&mtpt->port, TIOCM_RTS);
+ }
+ }
+ }
+}
+
+
+
+static irqreturn_t multi_interrupt(int irq, void *dev_id)
+{
+ struct irq_info *iinfo = dev_id;
+ struct list_head *lhead, *end = NULL;
+ int pass_counter = 0;
+
+
+ spin_lock(&iinfo->lock);
+
+ lhead = iinfo->head;
+ do {
+ struct mp_port *mtpt;
+ unsigned int iir;
+
+ mtpt = list_entry(lhead, struct mp_port, list);
+
+ iir = serial_in(mtpt, UART_IIR);
+ printk("intrrupt! port %d, iir 0x%x\n", mtpt->port.line, iir); //wlee
+ if (!(iir & UART_IIR_NO_INT))
+ {
+ printk("interrupt handle\n");
+ spin_lock(&mtpt->port.lock);
+ multi_handle_port(mtpt);
+ spin_unlock(&mtpt->port.lock);
+
+ end = NULL;
+ } else if (end == NULL)
+ end = lhead;
+
+ lhead = lhead->next;
+ if (lhead == iinfo->head && pass_counter++ > PASS_LIMIT)
+ {
+ printk(KERN_ERR "multi: too much work for "
+ "irq%d\n", irq);
+ printk( "multi: too much work for "
+ "irq%d\n", irq);
+ break;
+ }
+ } while (lhead != end);
+
+ spin_unlock(&iinfo->lock);
+
+
+ return IRQ_HANDLED;
+}
+
+static void serial_do_unlink(struct irq_info *i, struct mp_port *mtpt)
+{
+ spin_lock_irq(&i->lock);
+
+ if (!list_empty(i->head)) {
+ if (i->head == &mtpt->list)
+ i->head = i->head->next;
+ list_del(&mtpt->list);
+ } else {
+ i->head = NULL;
+ }
+
+ spin_unlock_irq(&i->lock);
+}
+
+static int serial_link_irq_chain(struct mp_port *mtpt)
+{
+ struct irq_info *i = irq_lists + mtpt->port.irq;
+ int ret, irq_flags = mtpt->port.flags & UPF_SHARE_IRQ ? IRQF_SHARED : 0;
+ spin_lock_irq(&i->lock);
+
+ if (i->head) {
+ list_add(&mtpt->list, i->head);
+ spin_unlock_irq(&i->lock);
+
+ ret = 0;
+ } else {
+ INIT_LIST_HEAD(&mtpt->list);
+ i->head = &mtpt->list;
+ spin_unlock_irq(&i->lock);
+
+ ret = request_irq(mtpt->port.irq, multi_interrupt,
+ irq_flags, "serial", i);
+ if (ret < 0)
+ serial_do_unlink(i, mtpt);
+ }
+
+ return ret;
+}
+
+
+
+
+static void serial_unlink_irq_chain(struct mp_port *mtpt)
+{
+ struct irq_info *i = irq_lists + mtpt->port.irq;
+
+ if (list_empty(i->head))
+ {
+ free_irq(mtpt->port.irq, i);
+ }
+ serial_do_unlink(i, mtpt);
+}
+
+static void multi_timeout(unsigned long data)
+{
+ struct mp_port *mtpt = (struct mp_port *)data;
+
+
+ spin_lock(&mtpt->port.lock);
+ multi_handle_port(mtpt);
+ spin_unlock(&mtpt->port.lock);
+
+ mod_timer(&mtpt->timer, jiffies+1 );
+}
+
+static unsigned int multi_tx_empty(struct sb_uart_port *port)
+{
+ struct mp_port *mtpt = (struct mp_port *)port;
+ unsigned long flags;
+ unsigned int ret;
+
+ spin_lock_irqsave(&mtpt->port.lock, flags);
+ ret = serial_in(mtpt, UART_LSR) & UART_LSR_TEMT ? TIOCSER_TEMT : 0;
+ spin_unlock_irqrestore(&mtpt->port.lock, flags);
+
+ return ret;
+}
+
+
+static unsigned int multi_get_mctrl(struct sb_uart_port *port)
+{
+ struct mp_port *mtpt = (struct mp_port *)port;
+ unsigned char status;
+ unsigned int ret;
+
+ status = serial_in(mtpt, UART_MSR);
+
+ ret = 0;
+ if (status & UART_MSR_DCD)
+ ret |= TIOCM_CAR;
+ if (status & UART_MSR_RI)
+ ret |= TIOCM_RNG;
+ if (status & UART_MSR_DSR)
+ ret |= TIOCM_DSR;
+ if (status & UART_MSR_CTS)
+ ret |= TIOCM_CTS;
+ return ret;
+}
+
+static void multi_set_mctrl(struct sb_uart_port *port, unsigned int mctrl)
+{
+ struct mp_port *mtpt = (struct mp_port *)port;
+ unsigned char mcr = 0;
+
+ mctrl &= 0xff;
+
+ if (mctrl & TIOCM_RTS)
+ mcr |= UART_MCR_RTS;
+ if (mctrl & TIOCM_DTR)
+ mcr |= UART_MCR_DTR;
+ if (mctrl & TIOCM_OUT1)
+ mcr |= UART_MCR_OUT1;
+ if (mctrl & TIOCM_OUT2)
+ mcr |= UART_MCR_OUT2;
+ if (mctrl & TIOCM_LOOP)
+ mcr |= UART_MCR_LOOP;
+
+
+ serial_out(mtpt, UART_MCR, mcr);
+}
+
+
+static void multi_break_ctl(struct sb_uart_port *port, int break_state)
+{
+ struct mp_port *mtpt = (struct mp_port *)port;
+ unsigned long flags;
+
+ spin_lock_irqsave(&mtpt->port.lock, flags);
+ if (break_state == -1)
+ mtpt->lcr |= UART_LCR_SBC;
+ else
+ mtpt->lcr &= ~UART_LCR_SBC;
+ serial_out(mtpt, UART_LCR, mtpt->lcr);
+ spin_unlock_irqrestore(&mtpt->port.lock, flags);
+}
+
+
+
+static int multi_startup(struct sb_uart_port *port)
+{
+ struct mp_port *mtpt = (struct mp_port *)port;
+ unsigned long flags;
+ int retval;
+
+ mtpt->capabilities = uart_config[mtpt->port.type].flags;
+ mtpt->mcr = 0;
+
+ if (mtpt->capabilities & UART_CLEAR_FIFO) {
+ serial_outp(mtpt, UART_FCR, UART_FCR_ENABLE_FIFO);
+ serial_outp(mtpt, UART_FCR, UART_FCR_ENABLE_FIFO |
+ UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT);
+ serial_outp(mtpt, UART_FCR, 0);
+ }
+
+ (void) serial_inp(mtpt, UART_LSR);
+ (void) serial_inp(mtpt, UART_RX);
+ (void) serial_inp(mtpt, UART_IIR);
+ (void) serial_inp(mtpt, UART_MSR);
+ //test-wlee 9-bit disable
+ serial_outp(mtpt, UART_MSR, 0);
+
+
+ if (!(mtpt->port.flags & UPF_BUGGY_UART) &&
+ (serial_inp(mtpt, UART_LSR) == 0xff)) {
+ printk("ttyS%d: LSR safety check engaged!\n", mtpt->port.line);
+ //return -ENODEV;
+ }
+
+ if ((!is_real_interrupt(mtpt->port.irq)) || (mtpt->poll_type==TYPE_POLL)) {
+ unsigned int timeout = mtpt->port.timeout;
+
+ timeout = timeout > 6 ? (timeout / 2 - 2) : 1;
+
+ mtpt->timer.data = (unsigned long)mtpt;
+ mod_timer(&mtpt->timer, jiffies + timeout);
+ }
+ else
+ {
+ retval = serial_link_irq_chain(mtpt);
+ if (retval)
+ return retval;
+ }
+
+ serial_outp(mtpt, UART_LCR, UART_LCR_WLEN8);
+
+ spin_lock_irqsave(&mtpt->port.lock, flags);
+ if ((is_real_interrupt(mtpt->port.irq))||(mtpt->poll_type==TYPE_INTERRUPT))
+ mtpt->port.mctrl |= TIOCM_OUT2;
+
+ multi_set_mctrl(&mtpt->port, mtpt->port.mctrl);
+ spin_unlock_irqrestore(&mtpt->port.lock, flags);
+
+
+ mtpt->ier = UART_IER_RLSI | UART_IER_RDI;
+ serial_outp(mtpt, UART_IER, mtpt->ier);
+
+ (void) serial_inp(mtpt, UART_LSR);
+ (void) serial_inp(mtpt, UART_RX);
+ (void) serial_inp(mtpt, UART_IIR);
+ (void) serial_inp(mtpt, UART_MSR);
+
+ return 0;
+}
+
+
+
+static void multi_shutdown(struct sb_uart_port *port)
+{
+ struct mp_port *mtpt = (struct mp_port *)port;
+ unsigned long flags;
+
+
+ mtpt->ier = 0;
+ serial_outp(mtpt, UART_IER, 0);
+
+ spin_lock_irqsave(&mtpt->port.lock, flags);
+ mtpt->port.mctrl &= ~TIOCM_OUT2;
+
+ multi_set_mctrl(&mtpt->port, mtpt->port.mctrl);
+ spin_unlock_irqrestore(&mtpt->port.lock, flags);
+
+ serial_out(mtpt, UART_LCR, serial_inp(mtpt, UART_LCR) & ~UART_LCR_SBC);
+ serial_outp(mtpt, UART_FCR, UART_FCR_ENABLE_FIFO |
+ UART_FCR_CLEAR_RCVR |
+ UART_FCR_CLEAR_XMIT);
+ serial_outp(mtpt, UART_FCR, 0);
+
+
+ (void) serial_in(mtpt, UART_RX);
+
+ if ((!is_real_interrupt(mtpt->port.irq))||(mtpt->poll_type==TYPE_POLL))
+ {
+ del_timer_sync(&mtpt->timer);
+ }
+ else
+ {
+ serial_unlink_irq_chain(mtpt);
+ }
+}
+
+
+
+static unsigned int multi_get_divisor(struct sb_uart_port *port, unsigned int baud)
+{
+ unsigned int quot;
+
+ if ((port->flags & UPF_MAGIC_MULTIPLIER) &&
+ baud == (port->uartclk/4))
+ quot = 0x8001;
+ else if ((port->flags & UPF_MAGIC_MULTIPLIER) &&
+ baud == (port->uartclk/8))
+ quot = 0x8002;
+ else
+ quot = sb_uart_get_divisor(port, baud);
+
+ return quot;
+}
+
+
+
+
+static void multi_set_termios(struct sb_uart_port *port, struct MP_TERMIOS *termios, struct MP_TERMIOS *old)
+{
+ struct mp_port *mtpt = (struct mp_port *)port;
+ unsigned char cval, fcr = 0;
+ unsigned long flags;
+ unsigned int baud, quot;
+
+ switch (termios->c_cflag & CSIZE) {
+ case CS5:
+ cval = 0x00;
+ break;
+ case CS6:
+ cval = 0x01;
+ break;
+ case CS7:
+ cval = 0x02;
+ break;
+ default:
+ case CS8:
+ cval = 0x03;
+ break;
+ }
+
+ if (termios->c_cflag & CSTOPB)
+ cval |= 0x04;
+ if (termios->c_cflag & PARENB)
+ cval |= UART_LCR_PARITY;
+ if (!(termios->c_cflag & PARODD))
+ cval |= UART_LCR_EPAR;
+
+#ifdef CMSPAR
+ if (termios->c_cflag & CMSPAR)
+ cval |= UART_LCR_SPAR;
+#endif
+
+ baud = sb_uart_get_baud_rate(port, termios, old, 0, port->uartclk/16);
+ quot = multi_get_divisor(port, baud);
+
+ if (mtpt->capabilities & UART_USE_FIFO) {
+ //if (baud < 2400)
+ // fcr = UART_FCR_ENABLE_FIFO | UART_FCR_TRIGGER_1;
+ //else
+ // fcr = UART_FCR_ENABLE_FIFO | UART_FCR_TRIGGER_8;
+
+ // fcr = UART_FCR_ENABLE_FIFO | 0x90;
+ fcr = fcr_arr[mtpt->port.line];
+ }
+
+ spin_lock_irqsave(&mtpt->port.lock, flags);
+
+ sb_uart_update_timeout(port, termios->c_cflag, baud);
+
+ mtpt->port.read_status_mask = UART_LSR_OE | UART_LSR_THRE | UART_LSR_DR;
+ if (termios->c_iflag & INPCK)
+ mtpt->port.read_status_mask |= UART_LSR_FE | UART_LSR_PE;
+ if (termios->c_iflag & (BRKINT | PARMRK))
+ mtpt->port.read_status_mask |= UART_LSR_BI;
+
+ mtpt->port.ignore_status_mask = 0;
+ if (termios->c_iflag & IGNPAR)
+ mtpt->port.ignore_status_mask |= UART_LSR_PE | UART_LSR_FE;
+ if (termios->c_iflag & IGNBRK) {
+ mtpt->port.ignore_status_mask |= UART_LSR_BI;
+ if (termios->c_iflag & IGNPAR)
+ mtpt->port.ignore_status_mask |= UART_LSR_OE;
+ }
+
+ if ((termios->c_cflag & CREAD) == 0)
+ mtpt->port.ignore_status_mask |= UART_LSR_DR;
+
+ mtpt->ier &= ~UART_IER_MSI;
+ if (UART_ENABLE_MS(&mtpt->port, termios->c_cflag))
+ mtpt->ier |= UART_IER_MSI;
+
+ serial_out(mtpt, UART_IER, mtpt->ier);
+
+ if (mtpt->capabilities & UART_STARTECH) {
+ serial_outp(mtpt, UART_LCR, 0xBF);
+ serial_outp(mtpt, UART_EFR,
+ termios->c_cflag & CRTSCTS ? UART_EFR_CTS :0);
+ }
+
+ serial_outp(mtpt, UART_LCR, cval | UART_LCR_DLAB);/* set DLAB */
+
+ serial_outp(mtpt, UART_DLL, quot & 0xff); /* LS of divisor */
+ serial_outp(mtpt, UART_DLM, quot >> 8); /* MS of divisor */
+
+ serial_outp(mtpt, UART_LCR, cval); /* reset DLAB */
+ mtpt->lcr = cval; /* Save LCR */
+
+ if (fcr & UART_FCR_ENABLE_FIFO) {
+ /* emulated UARTs (Lucent Venus 167x) need two steps */
+ serial_outp(mtpt, UART_FCR, UART_FCR_ENABLE_FIFO);
+ }
+
+ serial_outp(mtpt, UART_FCR, fcr); /* set fcr */
+
+
+ if ((mtpt->port.type == PORT_16C105X)
+ || (mtpt->port.type == PORT_16C105XA))
+ {
+ if(deep[mtpt->port.line]!=0)
+ set_deep_fifo(port, ENABLE);
+
+ if (mtpt->interface != RS232)
+ set_auto_rts(port,mtpt->interface);
+
+ }
+ else
+ {
+ if (mtpt->interface >= RS485NE)
+ {
+ uart_clear_mctrl(&mtpt->port, TIOCM_RTS);
+ }
+ }
+
+ if(mtpt->device->device_id == PCI_DEVICE_ID_MP4M)
+ {
+ SendATCommand(mtpt);
+ printk("SendATCommand\n");
+ }
+ multi_set_mctrl(&mtpt->port, mtpt->port.mctrl);
+ spin_unlock_irqrestore(&mtpt->port.lock, flags);
+}
+
+static void multi_pm(struct sb_uart_port *port, unsigned int state, unsigned int oldstate)
+{
+ struct mp_port *mtpt = (struct mp_port *)port;
+ if (state) {
+ if (mtpt->capabilities & UART_STARTECH) {
+ serial_outp(mtpt, UART_LCR, 0xBF);
+ serial_outp(mtpt, UART_EFR, UART_EFR_ECB);
+ serial_outp(mtpt, UART_LCR, 0);
+ serial_outp(mtpt, UART_IER, UART_IERX_SLEEP);
+ serial_outp(mtpt, UART_LCR, 0xBF);
+ serial_outp(mtpt, UART_EFR, 0);
+ serial_outp(mtpt, UART_LCR, 0);
+ }
+
+ if (mtpt->pm)
+ mtpt->pm(port, state, oldstate);
+ }
+ else
+ {
+ if (mtpt->capabilities & UART_STARTECH) {
+ serial_outp(mtpt, UART_LCR, 0xBF);
+ serial_outp(mtpt, UART_EFR, UART_EFR_ECB);
+ serial_outp(mtpt, UART_LCR, 0);
+ serial_outp(mtpt, UART_IER, 0);
+ serial_outp(mtpt, UART_LCR, 0xBF);
+ serial_outp(mtpt, UART_EFR, 0);
+ serial_outp(mtpt, UART_LCR, 0);
+ }
+
+ if (mtpt->pm)
+ mtpt->pm(port, state, oldstate);
+ }
+}
+
+static void multi_release_std_resource(struct mp_port *mtpt)
+{
+ unsigned int size = 8 << mtpt->port.regshift;
+
+ switch (mtpt->port.iotype) {
+ case UPIO_MEM:
+ if (!mtpt->port.mapbase)
+ break;
+
+ if (mtpt->port.flags & UPF_IOREMAP) {
+ iounmap(mtpt->port.membase);
+ mtpt->port.membase = NULL;
+ }
+
+ release_mem_region(mtpt->port.mapbase, size);
+ break;
+
+ case UPIO_HUB6:
+ case UPIO_PORT:
+ release_region(mtpt->port.iobase,size);
+ break;
+ }
+}
+
+static void multi_release_port(struct sb_uart_port *port)
+{
+}
+
+static int multi_request_port(struct sb_uart_port *port)
+{
+ return 0;
+}
+
+static void multi_config_port(struct sb_uart_port *port, int flags)
+{
+ struct mp_port *mtpt = (struct mp_port *)port;
+ int probeflags = PROBE_ANY;
+
+ if (flags & UART_CONFIG_TYPE)
+ autoconfig(mtpt, probeflags);
+ if (mtpt->port.type != PORT_UNKNOWN && flags & UART_CONFIG_IRQ)
+ autoconfig_irq(mtpt);
+
+ if (mtpt->port.type == PORT_UNKNOWN)
+ multi_release_std_resource(mtpt);
+}
+
+static int multi_verify_port(struct sb_uart_port *port, struct serial_struct *ser)
+{
+ if (ser->irq >= NR_IRQS || ser->irq < 0 ||
+ ser->baud_base < 9600 || ser->type < PORT_UNKNOWN ||
+ ser->type == PORT_STARTECH)
+ return -EINVAL;
+ return 0;
+}
+
+static const char * multi_type(struct sb_uart_port *port)
+{
+ int type = port->type;
+
+ if (type >= ARRAY_SIZE(uart_config))
+ type = 0;
+ return uart_config[type].name;
+}
+
+static struct sb_uart_ops multi_pops = {
+ .tx_empty = multi_tx_empty,
+ .set_mctrl = multi_set_mctrl,
+ .get_mctrl = multi_get_mctrl,
+ .stop_tx = multi_stop_tx,
+ .start_tx = multi_start_tx,
+ .stop_rx = multi_stop_rx,
+ .enable_ms = multi_enable_ms,
+ .break_ctl = multi_break_ctl,
+ .startup = multi_startup,
+ .shutdown = multi_shutdown,
+ .set_termios = multi_set_termios,
+ .pm = multi_pm,
+ .type = multi_type,
+ .release_port = multi_release_port,
+ .request_port = multi_request_port,
+ .config_port = multi_config_port,
+ .verify_port = multi_verify_port,
+};
+
+static struct uart_driver multi_reg = {
+ .owner = THIS_MODULE,
+ .driver_name = "goldel_tulip",
+ .dev_name = "ttyMP",
+ .major = SB_TTY_MP_MAJOR,
+ .minor = 0,
+ .nr = MAX_MP_PORT,
+ .cons = NULL,
+};
+
+static void __init multi_init_ports(void)
+{
+ struct mp_port *mtpt;
+ static int first = 1;
+ int i,j,k;
+ unsigned char osc;
+ unsigned char b_ret = 0;
+ static struct mp_device_t * sbdev;
+
+ if (!first)
+ return;
+ first = 0;
+
+ mtpt = multi_ports;
+
+ for (k=0;k<NR_BOARD;k++)
+ {
+ sbdev = &mp_devs[k];
+
+ for (i = 0; i < sbdev->nr_ports; i++, mtpt++)
+ {
+ mtpt->device = sbdev;
+ mtpt->port.iobase = sbdev->uart_access_addr + 8*i;
+ mtpt->port.irq = sbdev->irq;
+ if ( ((sbdev->device_id == PCI_DEVICE_ID_MP4)&&(sbdev->revision==0x91)))
+ mtpt->interface_config_addr = sbdev->option_reg_addr + 0x08 + i;
+ else if (sbdev->revision == 0xc0)
+ mtpt->interface_config_addr = sbdev->option_reg_addr + 0x08 + (i & 0x1);
+ else
+ mtpt->interface_config_addr = sbdev->option_reg_addr + 0x08 + i/8;
+
+ mtpt->option_base_addr = sbdev->option_reg_addr;
+
+ mtpt->poll_type = sbdev->poll_type;
+
+ mtpt->port.uartclk = BASE_BAUD * 16;
+
+ /* get input clock infomation */
+ osc = inb(sbdev->option_reg_addr + MP_OPTR_DIR0 + i/8) & 0x0F;
+ if (osc==0x0f)
+ osc = 0;
+ for(j=0;j<osc;j++)
+ mtpt->port.uartclk *= 2;
+ mtpt->port.flags |= STD_COM_FLAGS | UPF_SHARE_IRQ ;
+ mtpt->port.iotype = UPIO_PORT;
+ mtpt->port.ops = &multi_pops;
+
+ if (sbdev->revision == 0xc0)
+ {
+ /* for SB16C1053APCI */
+ b_ret = sb1053a_get_interface(mtpt, i);
+ }
+ else
+ {
+ b_ret = read_option_register(mtpt,(MP_OPTR_IIR0 + i/8));
+ printk("IIR_RET = %x\n",b_ret);
+ }
+
+ if(IIR_RS232 == (b_ret & IIR_RS232))
+ {
+ mtpt->interface = RS232;
+ }
+ if(IIR_RS422 == (b_ret & IIR_RS422))
+ {
+ mtpt->interface = RS422PTP;
+ }
+ if(IIR_RS485 == (b_ret & IIR_RS485))
+ {
+ mtpt->interface = RS485NE;
+ }
+ }
+ }
+}
+
+static void __init multi_register_ports(struct uart_driver *drv)
+{
+ int i;
+
+ multi_init_ports();
+
+ for (i = 0; i < NR_PORTS; i++) {
+ struct mp_port *mtpt = &multi_ports[i];
+
+ mtpt->port.line = i;
+ mtpt->port.ops = &multi_pops;
+ init_timer(&mtpt->timer);
+ mtpt->timer.function = multi_timeout;
+ mp_add_one_port(drv, &mtpt->port);
+ }
+}
+
+/**
+ * pci_remap_base - remap BAR value of pci device
+ *
+ * PARAMETERS
+ * pcidev - pci_dev structure address
+ * offset - BAR offset PCI_BASE_ADDRESS_0 ~ PCI_BASE_ADDRESS_4
+ * address - address to be changed BAR value
+ * size - size of address space
+ *
+ * RETURNS
+ * If this function performs successful, it returns 0. Otherwise, It returns -1.
+ */
+static int pci_remap_base(struct pci_dev *pcidev, unsigned int offset,
+ unsigned int address, unsigned int size)
+{
+#if 0
+ struct resource *root;
+ unsigned index = (offset - 0x10) >> 2;
+#endif
+
+ pci_write_config_dword(pcidev, offset, address);
+#if 0
+ root = pcidev->resource[index].parent;
+ release_resource(&pcidev->resource[index]);
+ address &= ~0x1;
+ pcidev->resource[index].start = address;
+ pcidev->resource[index].end = address + size - 1;
+
+ if (request_resource(root, &pcidev->resource[index]) != NULL)
+ {
+ printk(KERN_ERR "pci remap conflict!! 0x%x\n", address);
+ return (-1);
+ }
+#endif
+
+ return (0);
+}
+
+static int init_mp_dev(struct pci_dev *pcidev, mppcibrd_t brd)
+{
+ static struct mp_device_t * sbdev = mp_devs;
+ unsigned long addr = 0;
+ int j;
+ struct resource * ret = NULL;
+
+ sbdev->device_id = brd.device_id;
+ pci_read_config_byte(pcidev, PCI_CLASS_REVISION, &(sbdev->revision));
+ sbdev->name = brd.name;
+ sbdev->uart_access_addr = pcidev->resource[0].start & PCI_BASE_ADDRESS_IO_MASK;
+
+ /* check revision. The SB16C1053APCI's option i/o address is BAR4 */
+ if (sbdev->revision == 0xc0)
+ {
+ /* SB16C1053APCI */
+ sbdev->option_reg_addr = pcidev->resource[4].start & PCI_BASE_ADDRESS_IO_MASK;
+ }
+ else
+ {
+ sbdev->option_reg_addr = pcidev->resource[1].start & PCI_BASE_ADDRESS_IO_MASK;
+ }
+#if 1
+ if (sbdev->revision == 0xc0)
+ {
+ outb(0x00, sbdev->option_reg_addr + MP_OPTR_GPOCR);
+ inb(sbdev->option_reg_addr + MP_OPTR_GPOCR);
+ outb(0x83, sbdev->option_reg_addr + MP_OPTR_GPOCR);
+ }
+#endif
+
+ sbdev->irq = pcidev->irq;
+
+ if ((brd.device_id & 0x0800) || !(brd.device_id &0xff00))
+ {
+ sbdev->poll_type = TYPE_INTERRUPT;
+ }
+ else
+ {
+ sbdev->poll_type = TYPE_POLL;
+ }
+
+ /* codes which is specific to each board*/
+ switch(brd.device_id){
+ case PCI_DEVICE_ID_MP1 :
+ case PCIE_DEVICE_ID_MP1 :
+ case PCIE_DEVICE_ID_MP1E :
+ case PCIE_DEVICE_ID_GT_MP1 :
+ sbdev->nr_ports = 1;
+ break;
+ case PCI_DEVICE_ID_MP2 :
+ case PCIE_DEVICE_ID_MP2 :
+ case PCIE_DEVICE_ID_GT_MP2 :
+ case PCIE_DEVICE_ID_MP2B :
+ case PCIE_DEVICE_ID_MP2E :
+ sbdev->nr_ports = 2;
+
+ /* serial base address remap */
+ if (sbdev->revision == 0xc0)
+ {
+ int prev_port_addr = 0;
+
+ pci_read_config_dword(pcidev, PCI_BASE_ADDRESS_0, &prev_port_addr);
+ pci_remap_base(pcidev, PCI_BASE_ADDRESS_1, prev_port_addr + 8, 8);
+ }
+ break;
+ case PCI_DEVICE_ID_MP4 :
+ case PCI_DEVICE_ID_MP4A :
+ case PCIE_DEVICE_ID_MP4 :
+ case PCI_DEVICE_ID_GT_MP4 :
+ case PCI_DEVICE_ID_GT_MP4A :
+ case PCIE_DEVICE_ID_GT_MP4 :
+ case PCI_DEVICE_ID_MP4M :
+ case PCIE_DEVICE_ID_MP4B :
+ sbdev->nr_ports = 4;
+
+ if(sbdev->revision == 0x91){
+ sbdev->reserved_addr[0] = pcidev->resource[0].start & PCI_BASE_ADDRESS_IO_MASK;
+ outb(0x03 , sbdev->reserved_addr[0] + 0x01);
+ outb(0x03 , sbdev->reserved_addr[0] + 0x02);
+ outb(0x01 , sbdev->reserved_addr[0] + 0x20);
+ outb(0x00 , sbdev->reserved_addr[0] + 0x21);
+ request_region(sbdev->reserved_addr[0], 32, sbdev->name);
+ sbdev->uart_access_addr = pcidev->resource[1].start & PCI_BASE_ADDRESS_IO_MASK;
+ sbdev->option_reg_addr = pcidev->resource[2].start & PCI_BASE_ADDRESS_IO_MASK;
+ }
+
+ /* SB16C1053APCI */
+ if (sbdev->revision == 0xc0)
+ {
+ int prev_port_addr = 0;
+
+ pci_read_config_dword(pcidev, PCI_BASE_ADDRESS_0, &prev_port_addr);
+ pci_remap_base(pcidev, PCI_BASE_ADDRESS_1, prev_port_addr + 8, 8);
+ pci_remap_base(pcidev, PCI_BASE_ADDRESS_2, prev_port_addr + 16, 8);
+ pci_remap_base(pcidev, PCI_BASE_ADDRESS_3, prev_port_addr + 24, 8);
+ }
+ break;
+ case PCI_DEVICE_ID_MP6 :
+ case PCI_DEVICE_ID_MP6A :
+ case PCI_DEVICE_ID_GT_MP6 :
+ case PCI_DEVICE_ID_GT_MP6A :
+ sbdev->nr_ports = 6;
+
+ /* SB16C1053APCI */
+ if (sbdev->revision == 0xc0)
+ {
+ int prev_port_addr = 0;
+
+ pci_read_config_dword(pcidev, PCI_BASE_ADDRESS_0, &prev_port_addr);
+ pci_remap_base(pcidev, PCI_BASE_ADDRESS_1, prev_port_addr + 8, 8);
+ pci_remap_base(pcidev, PCI_BASE_ADDRESS_2, prev_port_addr + 16, 16);
+ pci_remap_base(pcidev, PCI_BASE_ADDRESS_3, prev_port_addr + 32, 16);
+ }
+ break;
+ case PCI_DEVICE_ID_MP8 :
+ case PCIE_DEVICE_ID_MP8 :
+ case PCI_DEVICE_ID_GT_MP8 :
+ case PCIE_DEVICE_ID_GT_MP8 :
+ case PCIE_DEVICE_ID_MP8B :
+ sbdev->nr_ports = 8;
+ break;
+ case PCI_DEVICE_ID_MP32 :
+ case PCIE_DEVICE_ID_MP32 :
+ case PCI_DEVICE_ID_GT_MP32 :
+ case PCIE_DEVICE_ID_GT_MP32 :
+ {
+ int portnum_hex=0;
+ portnum_hex = inb(sbdev->option_reg_addr);
+ sbdev->nr_ports = ((portnum_hex/16)*10) + (portnum_hex % 16);
+ }
+ break;
+ case PCI_DEVICE_ID_MP2S1P :
+ sbdev->nr_ports = 2;
+
+ /* SB16C1053APCI */
+ if (sbdev->revision == 0xc0)
+ {
+ int prev_port_addr = 0;
+
+ pci_read_config_dword(pcidev, PCI_BASE_ADDRESS_0, &prev_port_addr);
+ pci_remap_base(pcidev, PCI_BASE_ADDRESS_1, prev_port_addr + 8, 8);
+ }
+
+ /* add PC compatible parallel port */
+ parport_pc_probe_port(pcidev->resource[2].start, pcidev->resource[3].start, PARPORT_IRQ_NONE, PARPORT_DMA_NONE, &pcidev->dev, 0);
+ break;
+ case PCI_DEVICE_ID_MP1P :
+ /* add PC compatible parallel port */
+ parport_pc_probe_port(pcidev->resource[2].start, pcidev->resource[3].start, PARPORT_IRQ_NONE, PARPORT_DMA_NONE, &pcidev->dev, 0);
+ break;
+ }
+
+ ret = request_region(sbdev->uart_access_addr, (8*sbdev->nr_ports), sbdev->name);
+
+ if (sbdev->revision == 0xc0)
+ {
+ ret = request_region(sbdev->option_reg_addr, 0x40, sbdev->name);
+ }
+ else
+ {
+ ret = request_region(sbdev->option_reg_addr, 0x20, sbdev->name);
+ }
+
+
+ NR_BOARD++;
+ NR_PORTS += sbdev->nr_ports;
+
+ /* Enable PCI interrupt */
+ addr = sbdev->option_reg_addr + MP_OPTR_IMR0;
+ for(j=0; j < (sbdev->nr_ports/8)+1; j++)
+ {
+ if (sbdev->poll_type == TYPE_INTERRUPT)
+ {
+ outb(0xff,addr +j);
+ }
+ }
+ sbdev++;
+
+ return 0;
+}
+
+static int __init multi_init(void)
+{
+ int ret, i;
+ struct pci_dev *dev = NULL;
+
+ if(fcr_count==0)
+ {
+ for(i=0;i<256;i++)
+ {
+ fcr_arr[i] = 0x01;
+
+ }
+ }
+ if(deep_count==0)
+ {
+ for(i=0;i<256;i++)
+ {
+ deep[i] = 1;
+
+ }
+ }
+ if(rtr_count==0)
+ {
+ for(i=0;i<256;i++)
+ {
+ rtr[i] = 0x10;
+ }
+ }
+ if(ttr_count==0)
+ {
+ for(i=0;i<256;i++)
+ {
+ ttr[i] = 0x38;
+ }
+ }
+
+
+printk("MULTI INIT\n");
+ for( i=0; i< mp_nrpcibrds; i++)
+ {
+
+ while( (dev = pci_get_device(mp_pciboards[i].vendor_id, mp_pciboards[i].device_id, dev) ) )
+
+ {
+printk("FOUND~~~\n");
+// Cent OS bug fix
+// if (mp_pciboards[i].device_id & 0x0800)
+ {
+ int status;
+ pci_disable_device(dev);
+ status = pci_enable_device(dev);
+
+ if (status != 0)
+ {
+ printk("Multiport Board Enable Fail !\n\n");
+ status = -ENXIO;
+ return status;
+ }
+ }
+
+ init_mp_dev(dev, mp_pciboards[i]);
+ }
+ }
+
+ for (i = 0; i < NR_IRQS; i++)
+ spin_lock_init(&irq_lists[i].lock);
+
+ ret = mp_register_driver(&multi_reg);
+
+ if (ret >= 0)
+ multi_register_ports(&multi_reg);
+
+ return ret;
+}
+
+static void __exit multi_exit(void)
+{
+ int i;
+
+ for (i = 0; i < NR_PORTS; i++)
+ mp_remove_one_port(&multi_reg, &multi_ports[i].port);
+
+ mp_unregister_driver(&multi_reg);
+}
+
+module_init(multi_init);
+module_exit(multi_exit);
+
+MODULE_DESCRIPTION("SystemBase Multiport PCI/PCIe CORE");
+MODULE_LICENSE("GPL");
diff --git a/drivers/staging/sb105x/sb_pci_mp.h b/drivers/staging/sb105x/sb_pci_mp.h
new file mode 100644
index 0000000..833b2a2
--- /dev/null
+++ b/drivers/staging/sb105x/sb_pci_mp.h
@@ -0,0 +1,288 @@
+#include <linux/errno.h>
+#include <linux/signal.h>
+#include <linux/tty.h>
+#include <linux/tty_flip.h>
+#include <linux/serial.h>
+#include <linux/serial_reg.h>
+#include <linux/ioport.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/wait.h>
+#include <linux/tty_driver.h>
+#include <linux/pci.h>
+#include <linux/circ_buf.h>
+
+#include <asm/uaccess.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/segment.h>
+#include <asm/serial.h>
+#include <linux/interrupt.h>
+
+
+#include <linux/parport.h>
+#include <linux/ctype.h>
+#include <linux/poll.h>
+
+
+#define MP_TERMIOS ktermios
+
+#include "sb_mp_register.h"
+#include "sb_ser_core.h"
+
+#define DRIVER_VERSION "1.1"
+#define DRIVER_DATE "2012/01/05"
+#define DRIVER_AUTHOR "SYSTEMBASE<tech@...bas.com>"
+#define DRIVER_DESC "SystemBase PCI/PCIe Multiport Core"
+
+#define SB_TTY_MP_MAJOR 54
+#define PCI_VENDOR_ID_MULTIPORT 0x14A1
+
+#define PCI_DEVICE_ID_MP1 0x4d01
+#define PCI_DEVICE_ID_MP2 0x4d02
+#define PCI_DEVICE_ID_MP4 0x4d04
+#define PCI_DEVICE_ID_MP4A 0x4d54
+#define PCI_DEVICE_ID_MP6 0x4d06
+#define PCI_DEVICE_ID_MP6A 0x4d56
+#define PCI_DEVICE_ID_MP8 0x4d08
+#define PCI_DEVICE_ID_MP32 0x4d32
+/* Parallel port */
+#define PCI_DEVICE_ID_MP1P 0x4301
+#define PCI_DEVICE_ID_MP2S1P 0x4303
+
+#define PCIE_DEVICE_ID_MP1 0x4501
+#define PCIE_DEVICE_ID_MP2 0x4502
+#define PCIE_DEVICE_ID_MP4 0x4504
+#define PCIE_DEVICE_ID_MP8 0x4508
+#define PCIE_DEVICE_ID_MP32 0x4532
+
+#define PCIE_DEVICE_ID_MP1E 0x4e01
+#define PCIE_DEVICE_ID_MP2E 0x4e02
+#define PCIE_DEVICE_ID_MP2B 0x4b02
+#define PCIE_DEVICE_ID_MP4B 0x4b04
+#define PCIE_DEVICE_ID_MP8B 0x4b08
+
+#define PCI_DEVICE_ID_GT_MP4 0x0004
+#define PCI_DEVICE_ID_GT_MP4A 0x0054
+#define PCI_DEVICE_ID_GT_MP6 0x0006
+#define PCI_DEVICE_ID_GT_MP6A 0x0056
+#define PCI_DEVICE_ID_GT_MP8 0x0008
+#define PCI_DEVICE_ID_GT_MP32 0x0032
+
+#define PCIE_DEVICE_ID_GT_MP1 0x1501
+#define PCIE_DEVICE_ID_GT_MP2 0x1502
+#define PCIE_DEVICE_ID_GT_MP4 0x1504
+#define PCIE_DEVICE_ID_GT_MP8 0x1508
+#define PCIE_DEVICE_ID_GT_MP32 0x1532
+
+#define PCI_DEVICE_ID_MP4M 0x4604 //modem
+
+#define MAX_MP_DEV 8
+#define BD_MAX_PORT 32 /* Max serial port in one board */
+#define MAX_MP_PORT 256 /* Max serial port in one PC */
+
+#define PORT_16C105XA 3
+#define PORT_16C105X 2
+#define PORT_16C55X 1
+
+#define ENABLE 1
+#define DISABLE 0
+
+/* ioctls */
+#define TIOCGNUMOFPORT 0x545F
+#define TIOCSMULTIECHO 0x5440
+#define TIOCSPTPNOECHO 0x5441
+
+#define TIOCGOPTIONREG 0x5461
+#define TIOCGDISABLEIRQ 0x5462
+#define TIOCGENABLEIRQ 0x5463
+#define TIOCGSOFTRESET 0x5464
+#define TIOCGSOFTRESETR 0x5465
+#define TIOCGREGINFO 0x5466
+#define TIOCGGETLSR 0x5467
+#define TIOCGGETDEVID 0x5468
+#define TIOCGGETBDNO 0x5469
+#define TIOCGGETINTERFACE 0x546A
+#define TIOCGGETREV 0x546B
+#define TIOCGGETNRPORTS 0x546C
+#define TIOCGGETPORTTYPE 0x546D
+#define GETDEEPFIFO 0x54AA
+#define SETDEEPFIFO 0x54AB
+#define SETFCR 0x54BA
+#define SETTTR 0x54B1
+#define SETRTR 0x54B2
+#define GETTTR 0x54B3
+#define GETRTR 0x54B4
+
+/* multi-drop mode related ioctl commands */
+#define TIOCSMULTIDROP 0x5470
+#define TIOCSMDADDR 0x5471
+#define TIOCGMDADDR 0x5472
+#define TIOCSENDADDR 0x5473
+
+
+/* serial interface */
+#define RS232 1
+#define RS422PTP 2
+#define RS422MD 3
+#define RS485NE 4
+#define RS485ECHO 5
+
+#define serial_inp(up, offset) serial_in(up, offset)
+#define serial_outp(up, offset, value) serial_out(up, offset, value)
+
+#define PASS_LIMIT 256
+#define is_real_interrupt(irq) ((irq) != 0)
+
+#define PROBE_ANY (~0)
+
+static DEFINE_MUTEX(mp_mutex);
+#define MP_MUTEX_LOCK(x) mutex_lock(&(x))
+#define MP_MUTEX_UNLOCK(x) mutex_unlock(&(x))
+#define MP_STATE_LOCK(x) mutex_lock(&((x)->mutex))
+#define MP_STATE_UNLOCK(x) mutex_unlock(&((x)->mutex))
+
+
+#define UART_LSR_SPECIAL 0x1E
+
+#define HIGH_BITS_OFFSET ((sizeof(long)-sizeof(int))*8)
+#define uart_users(state) ((state)->count + ((state)->info ? (state)->info->blocked_open : 0))
+
+
+//#define MP_DEBUG 1
+#undef MP_DEBUG
+
+#ifdef MP_DEBUG
+#define DPRINTK(x...) printk(x)
+#else
+#define DPRINTK(x...) do { } while (0)
+#endif
+
+#ifdef MP_DEBUG
+#define DEBUG_AUTOCONF(fmt...) printk(fmt)
+#else
+#define DEBUG_AUTOCONF(fmt...) do { } while (0)
+#endif
+
+#ifdef MP_DEBUG
+#define DEBUG_INTR(fmt...) printk(fmt)
+#else
+#define DEBUG_INTR(fmt...) do { } while (0)
+#endif
+
+#if defined(__i386__) && (defined(CONFIG_M386) || defined(CONFIG_M486))
+#define SERIAL_INLINE
+#endif
+#ifdef SERIAL_INLINE
+#define _INLINE_ inline
+#else
+#define _INLINE_
+#endif
+
+#define TYPE_POLL 1
+#define TYPE_INTERRUPT 2
+
+
+struct mp_device_t {
+ unsigned short device_id;
+ unsigned char revision;
+ char *name;
+ unsigned long uart_access_addr;
+ unsigned long option_reg_addr;
+ unsigned long reserved_addr[4];
+ int irq;
+ int nr_ports;
+ int poll_type;
+};
+
+typedef struct mppcibrd {
+ char *name;
+ unsigned short vendor_id;
+ unsigned short device_id;
+} mppcibrd_t;
+
+static mppcibrd_t mp_pciboards[] = {
+
+ { "Multi-1 PCI", PCI_VENDOR_ID_MULTIPORT , PCI_DEVICE_ID_MP1} ,
+ { "Multi-2 PCI", PCI_VENDOR_ID_MULTIPORT , PCI_DEVICE_ID_MP2} ,
+ { "Multi-4 PCI", PCI_VENDOR_ID_MULTIPORT , PCI_DEVICE_ID_MP4} ,
+ { "Multi-4 PCI", PCI_VENDOR_ID_MULTIPORT , PCI_DEVICE_ID_MP4A} ,
+ { "Multi-6 PCI", PCI_VENDOR_ID_MULTIPORT , PCI_DEVICE_ID_MP6} ,
+ { "Multi-6 PCI", PCI_VENDOR_ID_MULTIPORT , PCI_DEVICE_ID_MP6A} ,
+ { "Multi-8 PCI", PCI_VENDOR_ID_MULTIPORT , PCI_DEVICE_ID_MP8} ,
+ { "Multi-32 PCI", PCI_VENDOR_ID_MULTIPORT , PCI_DEVICE_ID_MP32} ,
+
+ { "Multi-1P PCI", PCI_VENDOR_ID_MULTIPORT , PCI_DEVICE_ID_MP1P} ,
+ { "Multi-2S1P PCI", PCI_VENDOR_ID_MULTIPORT , PCI_DEVICE_ID_MP2S1P} ,
+
+ { "Multi-4(GT) PCI", PCI_VENDOR_ID_MULTIPORT , PCI_DEVICE_ID_GT_MP4} ,
+ { "Multi-4(GT) PCI", PCI_VENDOR_ID_MULTIPORT , PCI_DEVICE_ID_GT_MP4A} ,
+ { "Multi-6(GT) PCI", PCI_VENDOR_ID_MULTIPORT , PCI_DEVICE_ID_GT_MP6} ,
+ { "Multi-6(GT) PCI", PCI_VENDOR_ID_MULTIPORT , PCI_DEVICE_ID_GT_MP6A} ,
+ { "Multi-8(GT) PCI", PCI_VENDOR_ID_MULTIPORT , PCI_DEVICE_ID_GT_MP8} ,
+ { "Multi-32(GT) PCI", PCI_VENDOR_ID_MULTIPORT , PCI_DEVICE_ID_GT_MP32} ,
+
+ { "Multi-1 PCIe", PCI_VENDOR_ID_MULTIPORT , PCIE_DEVICE_ID_MP1} ,
+ { "Multi-2 PCIe", PCI_VENDOR_ID_MULTIPORT , PCIE_DEVICE_ID_MP2} ,
+ { "Multi-4 PCIe", PCI_VENDOR_ID_MULTIPORT , PCIE_DEVICE_ID_MP4} ,
+ { "Multi-8 PCIe", PCI_VENDOR_ID_MULTIPORT , PCIE_DEVICE_ID_MP8} ,
+ { "Multi-32 PCIe", PCI_VENDOR_ID_MULTIPORT , PCIE_DEVICE_ID_MP32} ,
+
+ { "Multi-1 PCIe E", PCI_VENDOR_ID_MULTIPORT , PCIE_DEVICE_ID_MP1E} ,
+ { "Multi-2 PCIe E", PCI_VENDOR_ID_MULTIPORT , PCIE_DEVICE_ID_MP2E} ,
+ { "Multi-2 PCIe B", PCI_VENDOR_ID_MULTIPORT , PCIE_DEVICE_ID_MP2B} ,
+ { "Multi-4 PCIe B", PCI_VENDOR_ID_MULTIPORT , PCIE_DEVICE_ID_MP4B} ,
+ { "Multi-8 PCIe B", PCI_VENDOR_ID_MULTIPORT , PCIE_DEVICE_ID_MP8B} ,
+
+ { "Multi-1(GT) PCIe", PCI_VENDOR_ID_MULTIPORT , PCIE_DEVICE_ID_GT_MP1} ,
+ { "Multi-2(GT) PCIe", PCI_VENDOR_ID_MULTIPORT , PCIE_DEVICE_ID_GT_MP2} ,
+ { "Multi-4(GT) PCIe", PCI_VENDOR_ID_MULTIPORT , PCIE_DEVICE_ID_GT_MP4} ,
+ { "Multi-8(GT) PCIe", PCI_VENDOR_ID_MULTIPORT , PCIE_DEVICE_ID_GT_MP8} ,
+ { "Multi-32(GT) PCIe", PCI_VENDOR_ID_MULTIPORT , PCIE_DEVICE_ID_GT_MP32} ,
+
+ { "Multi-4M PCI", PCI_VENDOR_ID_MULTIPORT , PCI_DEVICE_ID_MP4M} ,
+};
+
+struct mp_port {
+ struct sb_uart_port port;
+
+ struct timer_list timer; /* "no irq" timer */
+ struct list_head list; /* ports on this IRQ */
+ unsigned int capabilities; /* port capabilities */
+ unsigned short rev;
+ unsigned char acr;
+ unsigned char ier;
+ unsigned char lcr;
+ unsigned char mcr;
+ unsigned char mcr_mask; /* mask of user bits */
+ unsigned char mcr_force; /* mask of forced bits */
+ unsigned char lsr_break_flag;
+
+ void (*pm)(struct sb_uart_port *port,
+ unsigned int state, unsigned int old);
+ struct mp_device_t *device;
+ unsigned long interface_config_addr;
+ unsigned long option_base_addr;
+ unsigned char interface;
+ unsigned char poll_type;
+};
+
+struct irq_info {
+ spinlock_t lock;
+ struct list_head *head;
+};
+
+static const struct serial_uart_config uart_config[] = {
+ { "unknown", 1, 0 },
+ { "16550A", 16, UART_CLEAR_FIFO | UART_USE_FIFO },
+ { "SB16C1050", 128, UART_CLEAR_FIFO | UART_USE_FIFO | UART_STARTECH },
+ { "SB16C1050A", 128, UART_CLEAR_FIFO | UART_USE_FIFO | UART_STARTECH },
+};
+
+
+
+
diff --git a/drivers/staging/sb105x/sb_ser_core.h b/drivers/staging/sb105x/sb_ser_core.h
new file mode 100644
index 0000000..c8fb991
--- /dev/null
+++ b/drivers/staging/sb105x/sb_ser_core.h
@@ -0,0 +1,368 @@
+#include <linux/wait.h>
+
+#define UART_CONFIG_TYPE (1 << 0)
+#define UART_CONFIG_IRQ (1 << 1)
+#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 */
+#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_MAGIC_MULTIPLIER (1 << 16)
+#define UPF_CONS_FLOW (1 << 23)
+#define UPF_SHARE_IRQ (1 << 24)
+#define UPF_BOOT_AUTOCONF (1 << 28)
+#define UPF_DEAD (1 << 30)
+#define UPF_IOREMAP (1 << 31)
+#define UPF_CHANGE_MASK (0x17fff)
+#define UPF_USR_MASK (UPF_SPD_MASK|UPF_LOW_LATENCY)
+#define USF_CLOSING_WAIT_INF (0)
+#define USF_CLOSING_WAIT_NONE (~0U)
+
+#define UART_XMIT_SIZE PAGE_SIZE
+
+#define UIF_CHECK_CD (1 << 25)
+#define UIF_CTS_FLOW (1 << 26)
+#define UIF_NORMAL_ACTIVE (1 << 29)
+#define UIF_INITIALIZED (1 << 31)
+#define UIF_SUSPENDED (1 << 30)
+
+#define WAKEUP_CHARS 256
+
+#define uart_circ_empty(circ) ((circ)->head == (circ)->tail)
+#define uart_circ_clear(circ) ((circ)->head = (circ)->tail = 0)
+
+#define uart_circ_chars_pending(circ) \
+ (CIRC_CNT((circ)->head, (circ)->tail, UART_XMIT_SIZE))
+
+#define uart_circ_chars_free(circ) \
+ (CIRC_SPACE((circ)->head, (circ)->tail, UART_XMIT_SIZE))
+
+#define uart_tx_stopped(port) \
+ ((port)->info->tty->stopped || (port)->info->tty->hw_stopped)
+
+#define UART_ENABLE_MS(port,cflag) ((port)->flags & UPF_HARDPPS_CD || \
+ (cflag) & CRTSCTS || \
+ !((cflag) & CLOCAL))
+
+
+struct sb_uart_port;
+struct sb_uart_info;
+struct serial_struct;
+struct device;
+
+struct sb_uart_ops {
+ unsigned int (*tx_empty)(struct sb_uart_port *);
+ void (*set_mctrl)(struct sb_uart_port *, unsigned int mctrl);
+ unsigned int (*get_mctrl)(struct sb_uart_port *);
+ void (*stop_tx)(struct sb_uart_port *);
+ void (*start_tx)(struct sb_uart_port *);
+ void (*send_xchar)(struct sb_uart_port *, char ch);
+ void (*stop_rx)(struct sb_uart_port *);
+ void (*enable_ms)(struct sb_uart_port *);
+ void (*break_ctl)(struct sb_uart_port *, int ctl);
+ int (*startup)(struct sb_uart_port *);
+ void (*shutdown)(struct sb_uart_port *);
+ void (*set_termios)(struct sb_uart_port *, struct MP_TERMIOS *new,
+ struct MP_TERMIOS *old);
+ void (*pm)(struct sb_uart_port *, unsigned int state,
+ unsigned int oldstate);
+ int (*set_wake)(struct sb_uart_port *, unsigned int state);
+
+ const char *(*type)(struct sb_uart_port *);
+
+ void (*release_port)(struct sb_uart_port *);
+
+ int (*request_port)(struct sb_uart_port *);
+ void (*config_port)(struct sb_uart_port *, int);
+ int (*verify_port)(struct sb_uart_port *, struct serial_struct *);
+ int (*ioctl)(struct sb_uart_port *, unsigned int, unsigned long);
+};
+
+
+struct sb_uart_icount {
+ __u32 cts;
+ __u32 dsr;
+ __u32 rng;
+ __u32 dcd;
+ __u32 rx;
+ __u32 tx;
+ __u32 frame;
+ __u32 overrun;
+ __u32 parity;
+ __u32 brk;
+ __u32 buf_overrun;
+};
+typedef unsigned int upf_t;
+
+struct sb_uart_port {
+ spinlock_t lock; /* port lock */
+ unsigned int iobase; /* in/out[bwl] */
+ unsigned char __iomem *membase; /* read/write[bwl] */
+ unsigned int irq; /* irq number */
+ unsigned int uartclk; /* base uart clock */
+ 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;
+
+
+ unsigned int read_status_mask; /* driver specific */
+ unsigned int ignore_status_mask; /* driver specific */
+ struct sb_uart_info *info; /* pointer to parent info */
+ struct sb_uart_icount icount; /* statistics */
+
+ struct console *cons; /* struct console, if any */
+#ifdef CONFIG_SERIAL_CORE_CONSOLE
+ unsigned long sysrq; /* sysrq timeout */
+#endif
+
+ upf_t flags;
+
+ unsigned int mctrl; /* current modem ctrl settings */
+ unsigned int timeout; /* character-based timeout */
+ unsigned int type; /* port type */
+ const struct sb_uart_ops *ops;
+ unsigned int custom_divisor;
+ unsigned int line; /* port index */
+ unsigned long mapbase; /* for ioremap */
+ struct device *dev; /* parent device */
+ unsigned char hub6; /* this should be in the 8250 driver */
+ unsigned char unused[3];
+};
+
+#define mdmode unused[2]
+#define MDMODE_ADDR 0x1
+#define MDMODE_ENABLE 0x2
+#define MDMODE_AUTO 0x4
+#define MDMODE_ADDRSEND 0x8
+
+struct sb_uart_state {
+ unsigned int close_delay; /* msec */
+ unsigned int closing_wait; /* msec */
+
+
+ int count;
+ int pm_state;
+ struct sb_uart_info *info;
+ struct sb_uart_port *port;
+
+ struct mutex mutex;
+};
+
+typedef unsigned int uif_t;
+
+struct sb_uart_info {
+ struct tty_struct *tty;
+ struct circ_buf xmit;
+ uif_t flags;
+
+ int blocked_open;
+
+ struct tasklet_struct tlet;
+
+ wait_queue_head_t open_wait;
+ wait_queue_head_t delta_msr_wait;
+};
+
+
+struct module;
+struct tty_driver;
+
+struct uart_driver {
+ struct module *owner;
+ const char *driver_name;
+ const char *dev_name;
+ int major;
+ int minor;
+ int nr;
+ struct console *cons;
+
+ struct sb_uart_state *state;
+ struct tty_driver *tty_driver;
+};
+
+void sb_uart_write_wakeup(struct sb_uart_port *port)
+{
+ struct sb_uart_info *info = port->info;
+ tasklet_schedule(&info->tlet);
+}
+
+void sb_uart_update_timeout(struct sb_uart_port *port, unsigned int cflag,
+ unsigned int baud)
+{
+ unsigned int bits;
+
+ switch (cflag & CSIZE)
+ {
+ case CS5:
+ bits = 7;
+ break;
+
+ case CS6:
+ bits = 8;
+ break;
+
+ case CS7:
+ bits = 9;
+ break;
+
+ default:
+ bits = 10;
+ break;
+ }
+
+ if (cflag & CSTOPB)
+ {
+ bits++;
+ }
+
+ if (cflag & PARENB)
+ {
+ bits++;
+ }
+
+ bits = bits * port->fifosize;
+
+ port->timeout = (HZ * bits) / baud + HZ/50;
+}
+unsigned int sb_uart_get_baud_rate(struct sb_uart_port *port, struct MP_TERMIOS *termios,
+ struct MP_TERMIOS *old, unsigned int min,
+ unsigned int max)
+{
+ unsigned int try, baud, altbaud = 38400;
+ upf_t flags = port->flags & UPF_SPD_MASK;
+
+ if (flags == UPF_SPD_HI)
+ altbaud = 57600;
+ if (flags == UPF_SPD_VHI)
+ altbaud = 115200;
+ if (flags == UPF_SPD_SHI)
+ altbaud = 230400;
+ if (flags == UPF_SPD_WARP)
+ altbaud = 460800;
+
+ for (try = 0; try < 2; try++) {
+
+ switch (termios->c_cflag & (CBAUD | CBAUDEX))
+ {
+ case B921600 : baud = 921600; break;
+ case B460800 : baud = 460800; break;
+ case B230400 : baud = 230400; break;
+ case B115200 : baud = 115200; break;
+ case B57600 : baud = 57600; break;
+ case B38400 : baud = 38400; break;
+ case B19200 : baud = 19200; break;
+ case B9600 : baud = 9600; break;
+ case B4800 : baud = 4800; break;
+ case B2400 : baud = 2400; break;
+ case B1800 : baud = 1800; break;
+ case B1200 : baud = 1200; break;
+ case B600 : baud = 600; break;
+ case B300 : baud = 300; break;
+ case B200 : baud = 200; break;
+ case B150 : baud = 150; break;
+ case B134 : baud = 134; break;
+ case B110 : baud = 110; break;
+ case B75 : baud = 75; break;
+ case B50 : baud = 50; break;
+ default : baud = 9600; break;
+ }
+
+ if (baud == 38400)
+ baud = altbaud;
+
+ if (baud == 0)
+ baud = 9600;
+
+ if (baud >= min && baud <= max)
+ return baud;
+
+ termios->c_cflag &= ~CBAUD;
+ if (old) {
+ termios->c_cflag |= old->c_cflag & CBAUD;
+ old = NULL;
+ continue;
+ }
+
+ termios->c_cflag |= B9600;
+ }
+
+ return 0;
+}
+unsigned int sb_uart_get_divisor(struct sb_uart_port *port, unsigned int baud)
+{
+ unsigned int quot;
+
+ if (baud == 38400 && (port->flags & UPF_SPD_MASK) == UPF_SPD_CUST)
+ quot = port->custom_divisor;
+ else
+ quot = (port->uartclk + (8 * baud)) / (16 * baud);
+
+ return quot;
+}
+
+
+
+static inline int sb_uart_handle_break(struct sb_uart_port *port)
+{
+ struct sb_uart_info *info = port->info;
+
+ if (port->flags & UPF_SAK)
+ do_SAK(info->tty);
+ return 0;
+}
+
+static inline void sb_uart_handle_dcd_change(struct sb_uart_port *port, unsigned int status)
+{
+ struct sb_uart_info *info = port->info;
+
+ port->icount.dcd++;
+
+ if (info->flags & UIF_CHECK_CD) {
+ if (status)
+ wake_up_interruptible(&info->open_wait);
+ else if (info->tty)
+ tty_hangup(info->tty);
+ }
+}
+
+static inline void sb_uart_handle_cts_change(struct sb_uart_port *port, unsigned int status)
+{
+ struct sb_uart_info *info = port->info;
+ struct tty_struct *tty = info->tty;
+
+ port->icount.cts++;
+
+ if (info->flags & UIF_CTS_FLOW) {
+ if (tty->hw_stopped) {
+ if (status) {
+ tty->hw_stopped = 0;
+ port->ops->start_tx(port);
+ sb_uart_write_wakeup(port);
+ }
+ } else {
+ if (!status) {
+ tty->hw_stopped = 1;
+ port->ops->stop_tx(port);
+ }
+ }
+ }
+}
+
+
+
--
1.7.10.4
--
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