3197 lines
77 KiB
C
3197 lines
77 KiB
C
#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;
|
|
|
|
if (!tty || port->type == PORT_UNKNOWN)
|
|
return;
|
|
|
|
if (tty->termios.c_cflag & CRTSCTS)
|
|
state->info->flags |= UIF_CTS_FLOW;
|
|
else
|
|
state->info->flags &= ~UIF_CTS_FLOW;
|
|
|
|
if (tty->termios.c_cflag & CLOCAL)
|
|
state->info->flags &= ~UIF_CHECK_CD;
|
|
else
|
|
state->info->flags |= UIF_CHECK_CD;
|
|
|
|
port->ops->set_termios(port, &tty->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;
|
|
unsigned long flags;
|
|
|
|
if (!state || !state->info) {
|
|
return;
|
|
}
|
|
|
|
port = state->port;
|
|
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");
|