#include <linux/console.h>
#include <linux/module.h>
#include <linux/bitops.h>
+#include <linux/tty_flip.h>
#include <asm/system.h>
#include <asm/io.h>
/* This is the per-port data structure */
struct cyclades_port cy_port[] = {
- /* CARD# */
- {-1 }, /* ttyS0 */
- {-1 }, /* ttyS1 */
- {-1 }, /* ttyS2 */
- {-1 }, /* ttyS3 */
+ /* CARD# */
+ {-1}, /* ttyS0 */
+ {-1}, /* ttyS1 */
+ {-1}, /* ttyS2 */
+ {-1}, /* ttyS3 */
};
-#define NR_PORTS ARRAY_SIZE(cy_port)
-/*
- * tmp_buf is used as a temporary buffer by serial_write. We need to
- * lock it in case the copy_from_user blocks while swapping in a page,
- * and some other program tries to do a serial write at the same time.
- * Since the lock will only come under contention when the system is
- * swapping and available memory is low, it makes sense to share one
- * buffer across all the serial ports, since it significantly saves
- * memory if large numbers of serial ports are open.
- */
-static unsigned char *tmp_buf = 0;
+#define NR_PORTS ARRAY_SIZE(cy_port)
/*
* This is used to look up the divisor speeds and the timeouts
* HI VHI
*/
static int baud_table[] = {
- 0, 50, 75, 110, 134, 150, 200, 300, 600, 1200,
- 1800, 2400, 4800, 9600, 19200, 38400, 57600, 76800,115200,150000,
- 0};
+ 0, 50, 75, 110, 134, 150, 200, 300, 600, 1200,
+ 1800, 2400, 4800, 9600, 19200, 38400, 57600, 76800, 115200, 150000,
+ 0
+};
#if 0
-static char baud_co[] = { /* 25 MHz clock option table */
- /* value => 00 01 02 03 04 */
- /* divide by 8 32 128 512 2048 */
- 0x00, 0x04, 0x04, 0x04, 0x04, 0x04, 0x03, 0x03, 0x03, 0x02,
- 0x02, 0x02, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
+static char baud_co[] = { /* 25 MHz clock option table */
+ /* value => 00 01 02 03 04 */
+ /* divide by 8 32 128 512 2048 */
+ 0x00, 0x04, 0x04, 0x04, 0x04, 0x04, 0x03, 0x03, 0x03, 0x02,
+ 0x02, 0x02, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+};
-static char baud_bpr[] = { /* 25 MHz baud rate period table */
- 0x00, 0xf5, 0xa3, 0x6f, 0x5c, 0x51, 0xf5, 0xa3, 0x51, 0xa3,
- 0x6d, 0x51, 0xa3, 0x51, 0xa3, 0x51, 0x36, 0x29, 0x1b, 0x15};
+static char baud_bpr[] = { /* 25 MHz baud rate period table */
+ 0x00, 0xf5, 0xa3, 0x6f, 0x5c, 0x51, 0xf5, 0xa3, 0x51, 0xa3,
+ 0x6d, 0x51, 0xa3, 0x51, 0xa3, 0x51, 0x36, 0x29, 0x1b, 0x15
+};
#endif
/* I think 166 brd clocks 2401 at 20MHz.... */
/* These values are written directly to tcor, and >> 5 for writing to rcor */
-static u_char baud_co[] = { /* 20 MHz clock option table */
- 0x00, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x60, 0x60, 0x40,
- 0x40, 0x40, 0x20, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
+static u_char baud_co[] = { /* 20 MHz clock option table */
+ 0x00, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x60, 0x60, 0x40,
+ 0x40, 0x40, 0x20, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+};
/* These values written directly to tbpr/rbpr */
-static u_char baud_bpr[] = { /* 20 MHz baud rate period table */
- 0x00, 0xc0, 0x80, 0x58, 0x6c, 0x40, 0xc0, 0x81, 0x40, 0x81,
- 0x57, 0x40, 0x81, 0x40, 0x81, 0x40, 0x2b, 0x20, 0x15, 0x10};
-
-static u_char baud_cor4[] = { /* receive threshold */
- 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a,
- 0x0a, 0x0a, 0x0a, 0x09, 0x09, 0x08, 0x08, 0x08, 0x08, 0x07};
-
+static u_char baud_bpr[] = { /* 20 MHz baud rate period table */
+ 0x00, 0xc0, 0x80, 0x58, 0x6c, 0x40, 0xc0, 0x81, 0x40, 0x81,
+ 0x57, 0x40, 0x81, 0x40, 0x81, 0x40, 0x2b, 0x20, 0x15, 0x10
+};
+static u_char baud_cor4[] = { /* receive threshold */
+ 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a,
+ 0x0a, 0x0a, 0x0a, 0x09, 0x09, 0x08, 0x08, 0x08, 0x08, 0x07
+};
static void shutdown(struct cyclades_port *);
-static int startup (struct cyclades_port *);
+static int startup(struct cyclades_port *);
static void cy_throttle(struct tty_struct *);
static void cy_unthrottle(struct tty_struct *);
static void config_setup(struct cyclades_port *);
#ifdef CONFIG_REMOTE_DEBUG
static void debug_setup(void);
-void queueDebugChar (int c);
+void queueDebugChar(int c);
int getDebugChar(void);
#define DEBUG_PORT 1
#define DEBUG_LEN 256
typedef struct {
- int in;
- int out;
- unsigned char buf[DEBUG_LEN];
+ int in;
+ int out;
+ unsigned char buf[DEBUG_LEN];
} debugq;
debugq debugiq;
* delay, but this wild guess will do for now.
*/
-void my_udelay (long us)
+void my_udelay(long us)
{
u_char x;
volatile u_char *p = &x;
x |= *p;
}
-static inline int
-serial_paranoia_check(struct cyclades_port *info, char *name,
- const char *routine)
+static inline int serial_paranoia_check(struct cyclades_port *info, char *name,
+ const char *routine)
{
#ifdef SERIAL_PARANOIA_CHECK
- static const char *badmagic =
- "Warning: bad magic number for serial struct (%s) in %s\n";
- static const char *badinfo =
- "Warning: null cyclades_port for (%s) in %s\n";
- static const char *badrange =
- "Warning: cyclades_port out of range for (%s) in %s\n";
-
- if (!info) {
- printk(badinfo, name, routine);
- return 1;
- }
-
- if( (long)info < (long)(&cy_port[0])
- || (long)(&cy_port[NR_PORTS]) < (long)info ){
- printk(badrange, name, routine);
- return 1;
- }
-
- if (info->magic != CYCLADES_MAGIC) {
- printk(badmagic, name, routine);
- return 1;
- }
+ if (!info) {
+ printk("Warning: null cyclades_port for (%s) in %s\n", name,
+ routine);
+ return 1;
+ }
+
+ if ((long)info < (long)(&cy_port[0])
+ || (long)(&cy_port[NR_PORTS]) < (long)info) {
+ printk("Warning: cyclades_port out of range for (%s) in %s\n",
+ name, routine);
+ return 1;
+ }
+
+ if (info->magic != CYCLADES_MAGIC) {
+ printk("Warning: bad magic number for serial struct (%s) in "
+ "%s\n", name, routine);
+ return 1;
+ }
#endif
return 0;
-} /* serial_paranoia_check */
+} /* serial_paranoia_check */
#if 0
/* The following diagnostic routines allow the driver to spew
information on the screen, even (especially!) during interrupts.
*/
-void
-SP(char *data){
- unsigned long flags;
- local_irq_save(flags);
- console_print(data);
- local_irq_restore(flags);
+void SP(char *data)
+{
+ unsigned long flags;
+ local_irq_save(flags);
+ console_print(data);
+ local_irq_restore(flags);
}
+
char scrn[2];
-void
-CP(char data){
- unsigned long flags;
- local_irq_save(flags);
- scrn[0] = data;
- console_print(scrn);
- local_irq_restore(flags);
-}/* CP */
+void CP(char data)
+{
+ unsigned long flags;
+ local_irq_save(flags);
+ scrn[0] = data;
+ console_print(scrn);
+ local_irq_restore(flags);
+} /* CP */
-void CP1(int data) { (data<10)? CP(data+'0'): CP(data+'A'-10); }/* CP1 */
-void CP2(int data) { CP1((data>>4) & 0x0f); CP1( data & 0x0f); }/* CP2 */
-void CP4(int data) { CP2((data>>8) & 0xff); CP2(data & 0xff); }/* CP4 */
-void CP8(long data) { CP4((data>>16) & 0xffff); CP4(data & 0xffff); }/* CP8 */
+void CP1(int data)
+{
+ (data < 10) ? CP(data + '0') : CP(data + 'A' - 10);
+} /* CP1 */
+void CP2(int data)
+{
+ CP1((data >> 4) & 0x0f);
+ CP1(data & 0x0f);
+} /* CP2 */
+void CP4(int data)
+{
+ CP2((data >> 8) & 0xff);
+ CP2(data & 0xff);
+} /* CP4 */
+void CP8(long data)
+{
+ CP4((data >> 16) & 0xffff);
+ CP4(data & 0xffff);
+} /* CP8 */
#endif
/* This routine waits up to 1000 micro-seconds for the previous
new command. An error is returned if the previous command
didn't finish within the time limit.
*/
-u_short
-write_cy_cmd(volatile u_char *base_addr, u_char cmd)
+u_short write_cy_cmd(volatile u_char * base_addr, u_char cmd)
{
- unsigned long flags;
- volatile int i;
+ unsigned long flags;
+ volatile int i;
- local_irq_save(flags);
+ local_irq_save(flags);
/* Check to see that the previous command has completed */
- for(i = 0 ; i < 100 ; i++){
- if (base_addr[CyCCR] == 0){
- break;
- }
- my_udelay(10L);
+ for (i = 0; i < 100; i++) {
+ if (base_addr[CyCCR] == 0) {
+ break;
+ }
+ my_udelay(10L);
}
/* if the CCR never cleared, the previous command
- didn't finish within the "reasonable time" */
- if ( i == 10 ) {
- local_irq_restore(flags);
- return (-1);
+ didn't finish within the "reasonable time" */
+ if (i == 10) {
+ local_irq_restore(flags);
+ return (-1);
}
/* Issue the new command */
base_addr[CyCCR] = cmd;
- local_irq_restore(flags);
- return(0);
-} /* write_cy_cmd */
-
+ local_irq_restore(flags);
+ return (0);
+} /* write_cy_cmd */
/* cy_start and cy_stop provide software output flow control as a
function of XON/XOFF, software CTS, and other such stuff. */
-static void
-cy_stop(struct tty_struct *tty)
+static void cy_stop(struct tty_struct *tty)
{
- struct cyclades_port *info = (struct cyclades_port *)tty->driver_data;
- volatile unsigned char *base_addr = (unsigned char *)BASE_ADDR;
- int channel;
- unsigned long flags;
+ struct cyclades_port *info = (struct cyclades_port *)tty->driver_data;
+ volatile unsigned char *base_addr = (unsigned char *)BASE_ADDR;
+ int channel;
+ unsigned long flags;
#ifdef SERIAL_DEBUG_OTHER
- printk("cy_stop %s\n", tty->name); /* */
+ printk("cy_stop %s\n", tty->name); /* */
#endif
- if (serial_paranoia_check(info, tty->name, "cy_stop"))
- return;
-
- channel = info->line;
+ if (serial_paranoia_check(info, tty->name, "cy_stop"))
+ return;
- local_irq_save(flags);
- base_addr[CyCAR] = (u_char)(channel); /* index channel */
- base_addr[CyIER] &= ~(CyTxMpty|CyTxRdy);
- local_irq_restore(flags);
+ channel = info->line;
- return;
-} /* cy_stop */
+ local_irq_save(flags);
+ base_addr[CyCAR] = (u_char) (channel); /* index channel */
+ base_addr[CyIER] &= ~(CyTxMpty | CyTxRdy);
+ local_irq_restore(flags);
+} /* cy_stop */
-static void
-cy_start(struct tty_struct *tty)
+static void cy_start(struct tty_struct *tty)
{
- struct cyclades_port *info = (struct cyclades_port *)tty->driver_data;
- volatile unsigned char *base_addr = (unsigned char *)BASE_ADDR;
- int channel;
- unsigned long flags;
+ struct cyclades_port *info = (struct cyclades_port *)tty->driver_data;
+ volatile unsigned char *base_addr = (unsigned char *)BASE_ADDR;
+ int channel;
+ unsigned long flags;
#ifdef SERIAL_DEBUG_OTHER
- printk("cy_start %s\n", tty->name); /* */
+ printk("cy_start %s\n", tty->name); /* */
#endif
- if (serial_paranoia_check(info, tty->name, "cy_start"))
- return;
-
- channel = info->line;
+ if (serial_paranoia_check(info, tty->name, "cy_start"))
+ return;
- local_irq_save(flags);
- base_addr[CyCAR] = (u_char)(channel);
- base_addr[CyIER] |= CyTxMpty;
- local_irq_restore(flags);
-
- return;
-} /* cy_start */
+ channel = info->line;
+ local_irq_save(flags);
+ base_addr[CyCAR] = (u_char) (channel);
+ base_addr[CyIER] |= CyTxMpty;
+ local_irq_restore(flags);
+} /* cy_start */
/*
* This routine is used by the interrupt handler to schedule
* (also known as the "bottom half"). This can be called any
* number of times for any channel without harm.
*/
-static inline void
-cy_sched_event(struct cyclades_port *info, int event)
+static inline void cy_sched_event(struct cyclades_port *info, int event)
{
- info->event |= 1 << event; /* remember what kind of event and who */
- schedule_work(&info->tqueue);
-} /* cy_sched_event */
-
+ info->event |= 1 << event; /* remember what kind of event and who */
+ schedule_work(&info->tqueue);
+} /* cy_sched_event */
/* The real interrupt service routines are called
whenever the card wants its hand held--chars
received, out buffer empty, modem change, etc.
*/
-static irqreturn_t
-cd2401_rxerr_interrupt(int irq, void *dev_id, struct pt_regs *fp)
+static irqreturn_t cd2401_rxerr_interrupt(int irq, void *dev_id)
{
- struct tty_struct *tty;
- struct cyclades_port *info;
- volatile unsigned char *base_addr = (unsigned char *)BASE_ADDR;
- unsigned char err, rfoc;
- int channel;
- char data;
-
- /* determine the channel and change to that context */
- channel = (u_short ) (base_addr[CyLICR] >> 2);
- info = &cy_port[channel];
- info->last_active = jiffies;
-
- if ((err = base_addr[CyRISR]) & CyTIMEOUT) {
- /* This is a receive timeout interrupt, ignore it */
- base_addr[CyREOIR] = CyNOTRANS;
- return IRQ_HANDLED;
- }
-
- /* Read a byte of data if there is any - assume the error
- * is associated with this character */
+ struct tty_struct *tty;
+ struct cyclades_port *info;
+ volatile unsigned char *base_addr = (unsigned char *)BASE_ADDR;
+ unsigned char err, rfoc;
+ int channel;
+ char data;
+
+ /* determine the channel and change to that context */
+ channel = (u_short) (base_addr[CyLICR] >> 2);
+ info = &cy_port[channel];
+ info->last_active = jiffies;
+
+ if ((err = base_addr[CyRISR]) & CyTIMEOUT) {
+ /* This is a receive timeout interrupt, ignore it */
+ base_addr[CyREOIR] = CyNOTRANS;
+ return IRQ_HANDLED;
+ }
- if ((rfoc = base_addr[CyRFOC]) != 0)
- data = base_addr[CyRDR];
- else
- data = 0;
+ /* Read a byte of data if there is any - assume the error
+ * is associated with this character */
- /* if there is nowhere to put the data, discard it */
- if(info->tty == 0) {
- base_addr[CyREOIR] = rfoc ? 0 : CyNOTRANS;
- return IRQ_HANDLED;
- }
- else { /* there is an open port for this data */
- tty = info->tty;
- if(err & info->ignore_status_mask){
- base_addr[CyREOIR] = rfoc ? 0 : CyNOTRANS;
- return IRQ_HANDLED;
- }
- if (tty_buffer_request_room(tty, 1) != 0){
- if (err & info->read_status_mask){
- if(err & CyBREAK){
- tty_insert_flip_char(tty, data, TTY_BREAK);
- if (info->flags & ASYNC_SAK){
- do_SAK(tty);
- }
- }else if(err & CyFRAME){
- tty_insert_flip_char(tty, data, TTY_FRAME);
- }else if(err & CyPARITY){
- tty_insert_flip_char(tty, data, TTY_PARITY);
- }else if(err & CyOVERRUN){
- tty_insert_flip_char(tty, 0, TTY_OVERRUN);
- /*
- If the flip buffer itself is
- overflowing, we still loose
- the next incoming character.
- */
- tty_insert_flip_char(tty, data, TTY_NORMAL);
+ if ((rfoc = base_addr[CyRFOC]) != 0)
+ data = base_addr[CyRDR];
+ else
+ data = 0;
+
+ /* if there is nowhere to put the data, discard it */
+ if (info->tty == 0) {
+ base_addr[CyREOIR] = rfoc ? 0 : CyNOTRANS;
+ return IRQ_HANDLED;
+ } else { /* there is an open port for this data */
+ tty = info->tty;
+ if (err & info->ignore_status_mask) {
+ base_addr[CyREOIR] = rfoc ? 0 : CyNOTRANS;
+ return IRQ_HANDLED;
}
- /* These two conditions may imply */
- /* a normal read should be done. */
- /* else if(data & CyTIMEOUT) */
- /* else if(data & CySPECHAR) */
- }else{
- tty_insert_flip_char(tty, 0, TTY_NORMAL);
+ if (tty_buffer_request_room(tty, 1) != 0) {
+ if (err & info->read_status_mask) {
+ if (err & CyBREAK) {
+ tty_insert_flip_char(tty, data,
+ TTY_BREAK);
+ if (info->flags & ASYNC_SAK) {
+ do_SAK(tty);
+ }
+ } else if (err & CyFRAME) {
+ tty_insert_flip_char(tty, data,
+ TTY_FRAME);
+ } else if (err & CyPARITY) {
+ tty_insert_flip_char(tty, data,
+ TTY_PARITY);
+ } else if (err & CyOVERRUN) {
+ tty_insert_flip_char(tty, 0,
+ TTY_OVERRUN);
+ /*
+ If the flip buffer itself is
+ overflowing, we still loose
+ the next incoming character.
+ */
+ if (tty_buffer_request_room(tty, 1) !=
+ 0) {
+ tty_insert_flip_char(tty, data,
+ TTY_FRAME);
+ }
+ /* These two conditions may imply */
+ /* a normal read should be done. */
+ /* else if(data & CyTIMEOUT) */
+ /* else if(data & CySPECHAR) */
+ } else {
+ tty_insert_flip_char(tty, 0,
+ TTY_NORMAL);
+ }
+ } else {
+ tty_insert_flip_char(tty, data, TTY_NORMAL);
+ }
+ } else {
+ /* there was a software buffer overrun
+ and nothing could be done about it!!! */
}
- }else{
- tty_insert_flip_char(tty, data, TTY_NORMAL);
- }
- }else{
- /* there was a software buffer overrun
- and nothing could be done about it!!! */
- }
- }
- schedule_delayed_work(&tty->flip.work, 1);
- /* end of service */
- base_addr[CyREOIR] = rfoc ? 0 : CyNOTRANS;
- return IRQ_HANDLED;
-} /* cy_rxerr_interrupt */
-
-static irqreturn_t
-cd2401_modem_interrupt(int irq, void *dev_id, struct pt_regs *fp)
+ }
+ tty_schedule_flip(tty);
+ /* end of service */
+ base_addr[CyREOIR] = rfoc ? 0 : CyNOTRANS;
+ return IRQ_HANDLED;
+} /* cy_rxerr_interrupt */
+
+static irqreturn_t cd2401_modem_interrupt(int irq, void *dev_id)
{
- struct cyclades_port *info;
- volatile unsigned char *base_addr = (unsigned char *)BASE_ADDR;
- int channel;
- int mdm_change;
- int mdm_status;
-
-
- /* determine the channel and change to that context */
- channel = (u_short ) (base_addr[CyLICR] >> 2);
- info = &cy_port[channel];
- info->last_active = jiffies;
-
- mdm_change = base_addr[CyMISR];
- mdm_status = base_addr[CyMSVR1];
-
- if(info->tty == 0){ /* nowhere to put the data, ignore it */
- ;
- }else{
- if((mdm_change & CyDCD)
- && (info->flags & ASYNC_CHECK_CD)){
- if(mdm_status & CyDCD){
+ struct cyclades_port *info;
+ volatile unsigned char *base_addr = (unsigned char *)BASE_ADDR;
+ int channel;
+ int mdm_change;
+ int mdm_status;
+
+ /* determine the channel and change to that context */
+ channel = (u_short) (base_addr[CyLICR] >> 2);
+ info = &cy_port[channel];
+ info->last_active = jiffies;
+
+ mdm_change = base_addr[CyMISR];
+ mdm_status = base_addr[CyMSVR1];
+
+ if (info->tty == 0) { /* nowhere to put the data, ignore it */
+ ;
+ } else {
+ if ((mdm_change & CyDCD)
+ && (info->flags & ASYNC_CHECK_CD)) {
+ if (mdm_status & CyDCD) {
/* CP('!'); */
- cy_sched_event(info, Cy_EVENT_OPEN_WAKEUP);
- } else {
+ cy_sched_event(info, Cy_EVENT_OPEN_WAKEUP);
+ } else {
/* CP('@'); */
- cy_sched_event(info, Cy_EVENT_HANGUP);
- }
- }
- if((mdm_change & CyCTS)
- && (info->flags & ASYNC_CTS_FLOW)){
- if(info->tty->stopped){
- if(mdm_status & CyCTS){
- /* !!! cy_start isn't used because... */
- info->tty->stopped = 0;
- base_addr[CyIER] |= CyTxMpty;
- cy_sched_event(info, Cy_EVENT_WRITE_WAKEUP);
+ cy_sched_event(info, Cy_EVENT_HANGUP);
+ }
}
- }else{
- if(!(mdm_status & CyCTS)){
- /* !!! cy_stop isn't used because... */
- info->tty->stopped = 1;
- base_addr[CyIER] &= ~(CyTxMpty|CyTxRdy);
+ if ((mdm_change & CyCTS)
+ && (info->flags & ASYNC_CTS_FLOW)) {
+ if (info->tty->stopped) {
+ if (mdm_status & CyCTS) {
+ /* !!! cy_start isn't used because... */
+ info->tty->stopped = 0;
+ base_addr[CyIER] |= CyTxMpty;
+ cy_sched_event(info,
+ Cy_EVENT_WRITE_WAKEUP);
+ }
+ } else {
+ if (!(mdm_status & CyCTS)) {
+ /* !!! cy_stop isn't used because... */
+ info->tty->stopped = 1;
+ base_addr[CyIER] &=
+ ~(CyTxMpty | CyTxRdy);
+ }
+ }
+ }
+ if (mdm_status & CyDSR) {
}
- }
- }
- if(mdm_status & CyDSR){
}
- }
- base_addr[CyMEOIR] = 0;
- return IRQ_HANDLED;
-} /* cy_modem_interrupt */
+ base_addr[CyMEOIR] = 0;
+ return IRQ_HANDLED;
+} /* cy_modem_interrupt */
-static irqreturn_t
-cd2401_tx_interrupt(int irq, void *dev_id, struct pt_regs *fp)
+static irqreturn_t cd2401_tx_interrupt(int irq, void *dev_id)
{
- struct cyclades_port *info;
- volatile unsigned char *base_addr = (unsigned char *)BASE_ADDR;
- int channel;
- int char_count, saved_cnt;
- int outch;
+ struct cyclades_port *info;
+ volatile unsigned char *base_addr = (unsigned char *)BASE_ADDR;
+ int channel;
+ int char_count, saved_cnt;
+ int outch;
- /* determine the channel and change to that context */
- channel = (u_short ) (base_addr[CyLICR] >> 2);
+ /* determine the channel and change to that context */
+ channel = (u_short) (base_addr[CyLICR] >> 2);
#ifdef CONFIG_REMOTE_DEBUG
- if (channel == DEBUG_PORT) {
- panic ("TxInt on debug port!!!");
- }
+ if (channel == DEBUG_PORT) {
+ panic("TxInt on debug port!!!");
+ }
#endif
- info = &cy_port[channel];
+ info = &cy_port[channel];
- /* validate the port number (as configured and open) */
- if( (channel < 0) || (NR_PORTS <= channel) ){
- base_addr[CyIER] &= ~(CyTxMpty|CyTxRdy);
- base_addr[CyTEOIR] = CyNOTRANS;
- return IRQ_HANDLED;
- }
- info->last_active = jiffies;
- if(info->tty == 0){
- base_addr[CyIER] &= ~(CyTxMpty|CyTxRdy);
- if (info->xmit_cnt < WAKEUP_CHARS) {
- cy_sched_event(info, Cy_EVENT_WRITE_WAKEUP);
- }
- base_addr[CyTEOIR] = CyNOTRANS;
- return IRQ_HANDLED;
- }
-
- /* load the on-chip space available for outbound data */
- saved_cnt = char_count = base_addr[CyTFTC];
-
- if(info->x_char) { /* send special char */
- outch = info->x_char;
- base_addr[CyTDR] = outch;
- char_count--;
- info->x_char = 0;
- }
-
- if (info->x_break){
- /* The Cirrus chip requires the "Embedded Transmit
- Commands" of start break, delay, and end break
- sequences to be sent. The duration of the
- break is given in TICs, which runs at HZ
- (typically 100) and the PPR runs at 200 Hz,
- so the delay is duration * 200/HZ, and thus a
- break can run from 1/100 sec to about 5/4 sec.
- Need to check these values - RGH 141095.
- */
- base_addr[CyTDR] = 0; /* start break */
- base_addr[CyTDR] = 0x81;
- base_addr[CyTDR] = 0; /* delay a bit */
- base_addr[CyTDR] = 0x82;
- base_addr[CyTDR] = info->x_break*200/HZ;
- base_addr[CyTDR] = 0; /* terminate break */
- base_addr[CyTDR] = 0x83;
- char_count -= 7;
- info->x_break = 0;
- }
-
- while (char_count > 0){
- if (!info->xmit_cnt){
- base_addr[CyIER] &= ~(CyTxMpty|CyTxRdy);
- break;
- }
- if (info->xmit_buf == 0){
- base_addr[CyIER] &= ~(CyTxMpty|CyTxRdy);
- break;
- }
- if (info->tty->stopped || info->tty->hw_stopped){
- base_addr[CyIER] &= ~(CyTxMpty|CyTxRdy);
- break;
- }
- /* Because the Embedded Transmit Commands have been
- enabled, we must check to see if the escape
- character, NULL, is being sent. If it is, we
- must ensure that there is room for it to be
- doubled in the output stream. Therefore we
- no longer advance the pointer when the character
- is fetched, but rather wait until after the check
- for a NULL output character. (This is necessary
- because there may not be room for the two chars
- needed to send a NULL.
- */
- outch = info->xmit_buf[info->xmit_tail];
- if( outch ){
- info->xmit_cnt--;
- info->xmit_tail = (info->xmit_tail + 1)
- & (PAGE_SIZE - 1);
- base_addr[CyTDR] = outch;
- char_count--;
- }else{
- if(char_count > 1){
- info->xmit_cnt--;
- info->xmit_tail = (info->xmit_tail + 1)
- & (PAGE_SIZE - 1);
+ /* validate the port number (as configured and open) */
+ if ((channel < 0) || (NR_PORTS <= channel)) {
+ base_addr[CyIER] &= ~(CyTxMpty | CyTxRdy);
+ base_addr[CyTEOIR] = CyNOTRANS;
+ return IRQ_HANDLED;
+ }
+ info->last_active = jiffies;
+ if (info->tty == 0) {
+ base_addr[CyIER] &= ~(CyTxMpty | CyTxRdy);
+ if (info->xmit_cnt < WAKEUP_CHARS) {
+ cy_sched_event(info, Cy_EVENT_WRITE_WAKEUP);
+ }
+ base_addr[CyTEOIR] = CyNOTRANS;
+ return IRQ_HANDLED;
+ }
+
+ /* load the on-chip space available for outbound data */
+ saved_cnt = char_count = base_addr[CyTFTC];
+
+ if (info->x_char) { /* send special char */
+ outch = info->x_char;
base_addr[CyTDR] = outch;
- base_addr[CyTDR] = 0;
char_count--;
- char_count--;
- }else{
- break;
- }
+ info->x_char = 0;
}
- }
- if (info->xmit_cnt < WAKEUP_CHARS) {
- cy_sched_event(info, Cy_EVENT_WRITE_WAKEUP);
- }
- base_addr[CyTEOIR] = (char_count != saved_cnt) ? 0 : CyNOTRANS;
- return IRQ_HANDLED;
-} /* cy_tx_interrupt */
+ if (info->x_break) {
+ /* The Cirrus chip requires the "Embedded Transmit
+ Commands" of start break, delay, and end break
+ sequences to be sent. The duration of the
+ break is given in TICs, which runs at HZ
+ (typically 100) and the PPR runs at 200 Hz,
+ so the delay is duration * 200/HZ, and thus a
+ break can run from 1/100 sec to about 5/4 sec.
+ Need to check these values - RGH 141095.
+ */
+ base_addr[CyTDR] = 0; /* start break */
+ base_addr[CyTDR] = 0x81;
+ base_addr[CyTDR] = 0; /* delay a bit */
+ base_addr[CyTDR] = 0x82;
+ base_addr[CyTDR] = info->x_break * 200 / HZ;
+ base_addr[CyTDR] = 0; /* terminate break */
+ base_addr[CyTDR] = 0x83;
+ char_count -= 7;
+ info->x_break = 0;
+ }
-static irqreturn_t
-cd2401_rx_interrupt(int irq, void *dev_id, struct pt_regs *fp)
+ while (char_count > 0) {
+ if (!info->xmit_cnt) {
+ base_addr[CyIER] &= ~(CyTxMpty | CyTxRdy);
+ break;
+ }
+ if (info->xmit_buf == 0) {
+ base_addr[CyIER] &= ~(CyTxMpty | CyTxRdy);
+ break;
+ }
+ if (info->tty->stopped || info->tty->hw_stopped) {
+ base_addr[CyIER] &= ~(CyTxMpty | CyTxRdy);
+ break;
+ }
+ /* Because the Embedded Transmit Commands have been
+ enabled, we must check to see if the escape
+ character, NULL, is being sent. If it is, we
+ must ensure that there is room for it to be
+ doubled in the output stream. Therefore we
+ no longer advance the pointer when the character
+ is fetched, but rather wait until after the check
+ for a NULL output character. (This is necessary
+ because there may not be room for the two chars
+ needed to send a NULL.
+ */
+ outch = info->xmit_buf[info->xmit_tail];
+ if (outch) {
+ info->xmit_cnt--;
+ info->xmit_tail = (info->xmit_tail + 1)
+ & (PAGE_SIZE - 1);
+ base_addr[CyTDR] = outch;
+ char_count--;
+ } else {
+ if (char_count > 1) {
+ info->xmit_cnt--;
+ info->xmit_tail = (info->xmit_tail + 1)
+ & (PAGE_SIZE - 1);
+ base_addr[CyTDR] = outch;
+ base_addr[CyTDR] = 0;
+ char_count--;
+ char_count--;
+ } else {
+ break;
+ }
+ }
+ }
+
+ if (info->xmit_cnt < WAKEUP_CHARS) {
+ cy_sched_event(info, Cy_EVENT_WRITE_WAKEUP);
+ }
+ base_addr[CyTEOIR] = (char_count != saved_cnt) ? 0 : CyNOTRANS;
+ return IRQ_HANDLED;
+} /* cy_tx_interrupt */
+
+static irqreturn_t cd2401_rx_interrupt(int irq, void *dev_id)
{
- struct tty_struct *tty;
- struct cyclades_port *info;
- volatile unsigned char *base_addr = (unsigned char *)BASE_ADDR;
- int channel;
- char data;
- int char_count;
- int save_cnt;
-
- /* determine the channel and change to that context */
- channel = (u_short ) (base_addr[CyLICR] >> 2);
- info = &cy_port[channel];
- info->last_active = jiffies;
- save_cnt = char_count = base_addr[CyRFOC];
+ struct tty_struct *tty;
+ struct cyclades_port *info;
+ volatile unsigned char *base_addr = (unsigned char *)BASE_ADDR;
+ int channel;
+ char data;
+ int char_count;
+ int save_cnt;
+ int len;
+
+ /* determine the channel and change to that context */
+ channel = (u_short) (base_addr[CyLICR] >> 2);
+ info = &cy_port[channel];
+ info->last_active = jiffies;
+ save_cnt = char_count = base_addr[CyRFOC];
#ifdef CONFIG_REMOTE_DEBUG
- if (channel == DEBUG_PORT) {
- while (char_count--) {
- data = base_addr[CyRDR];
- queueDebugChar(data);
- }
- }
- else
+ if (channel == DEBUG_PORT) {
+ while (char_count--) {
+ data = base_addr[CyRDR];
+ queueDebugChar(data);
+ }
+ } else
#endif
- /* if there is nowhere to put the data, discard it */
- if(info->tty == 0){
- while(char_count--){
- data = base_addr[CyRDR];
- }
- }else{ /* there is an open port for this data */
- tty = info->tty;
- /* load # characters available from the chip */
+ /* if there is nowhere to put the data, discard it */
+ if (info->tty == 0) {
+ while (char_count--) {
+ data = base_addr[CyRDR];
+ }
+ } else { /* there is an open port for this data */
+ tty = info->tty;
+ /* load # characters available from the chip */
#ifdef CYCLOM_ENABLE_MONITORING
- ++info->mon.int_count;
- info->mon.char_count += char_count;
- if (char_count > info->mon.char_max)
- info->mon.char_max = char_count;
- info->mon.char_last = char_count;
-#endif
- while(char_count--){
- data = base_addr[CyRDR];
- tty_insert_flip_char(tty, data, TTY_NORMAL);
+ ++info->mon.int_count;
+ info->mon.char_count += char_count;
+ if (char_count > info->mon.char_max)
+ info->mon.char_max = char_count;
+ info->mon.char_last = char_count;
+#endif
+ len = tty_buffer_request_room(tty, char_count);
+ while (len--) {
+ data = base_addr[CyRDR];
+ tty_insert_flip_char(tty, data, TTY_NORMAL);
#ifdef CYCLOM_16Y_HACK
- udelay(10L);
+ udelay(10L);
#endif
- }
- schedule_delayed_work(&tty->flip.work, 1);
- }
- /* end of service */
- base_addr[CyREOIR] = save_cnt ? 0 : CyNOTRANS;
- return IRQ_HANDLED;
-} /* cy_rx_interrupt */
+ }
+ tty_schedule_flip(tty);
+ }
+ /* end of service */
+ base_addr[CyREOIR] = save_cnt ? 0 : CyNOTRANS;
+ return IRQ_HANDLED;
+} /* cy_rx_interrupt */
/*
* This routine is used to handle the "bottom half" processing for the
* structure) to the bottom half of the driver. Previous kernels
* had to poll every port to see if that port needed servicing.
*/
-static void
-do_softint(void *private_)
+static void do_softint(struct work_struct *ugly_api)
{
- struct cyclades_port *info = (struct cyclades_port *) private_;
- struct tty_struct *tty;
-
- tty = info->tty;
- if (!tty)
- return;
+ struct cyclades_port *info =
+ container_of(ugly_api, struct cyclades_port, tqueue);
+ struct tty_struct *tty;
- if (test_and_clear_bit(Cy_EVENT_HANGUP, &info->event)) {
- tty_hangup(info->tty);
- wake_up_interruptible(&info->open_wait);
- info->flags &= ~ASYNC_NORMAL_ACTIVE;
- }
- if (test_and_clear_bit(Cy_EVENT_OPEN_WAKEUP, &info->event)) {
- wake_up_interruptible(&info->open_wait);
- }
- if (test_and_clear_bit(Cy_EVENT_WRITE_WAKEUP, &info->event)) {
- tty_wakeup(tty);
- }
-} /* do_softint */
+ tty = info->tty;
+ if (!tty)
+ return;
+ if (test_and_clear_bit(Cy_EVENT_HANGUP, &info->event)) {
+ tty_hangup(info->tty);
+ wake_up_interruptible(&info->open_wait);
+ info->flags &= ~ASYNC_NORMAL_ACTIVE;
+ }
+ if (test_and_clear_bit(Cy_EVENT_OPEN_WAKEUP, &info->event)) {
+ wake_up_interruptible(&info->open_wait);
+ }
+ if (test_and_clear_bit(Cy_EVENT_WRITE_WAKEUP, &info->event)) {
+ tty_wakeup(tty);
+ }
+} /* do_softint */
/* This is called whenever a port becomes active;
interrupts are enabled and DTR & RTS are turned on.
*/
-static int
-startup(struct cyclades_port * info)
+static int startup(struct cyclades_port *info)
{
- unsigned long flags;
- volatile unsigned char *base_addr = (unsigned char *)BASE_ADDR;
- int channel;
+ unsigned long flags;
+ volatile unsigned char *base_addr = (unsigned char *)BASE_ADDR;
+ int channel;
- if (info->flags & ASYNC_INITIALIZED){
- return 0;
- }
+ if (info->flags & ASYNC_INITIALIZED) {
+ return 0;
+ }
- if (!info->type){
- if (info->tty){
- set_bit(TTY_IO_ERROR, &info->tty->flags);
+ if (!info->type) {
+ if (info->tty) {
+ set_bit(TTY_IO_ERROR, &info->tty->flags);
+ }
+ return 0;
}
- return 0;
- }
- if (!info->xmit_buf){
- info->xmit_buf = (unsigned char *) get_zeroed_page (GFP_KERNEL);
- if (!info->xmit_buf){
- return -ENOMEM;
+ if (!info->xmit_buf) {
+ info->xmit_buf = (unsigned char *)get_zeroed_page(GFP_KERNEL);
+ if (!info->xmit_buf) {
+ return -ENOMEM;
+ }
}
- }
- config_setup(info);
+ config_setup(info);
- channel = info->line;
+ channel = info->line;
#ifdef SERIAL_DEBUG_OPEN
- printk("startup channel %d\n", channel);
+ printk("startup channel %d\n", channel);
#endif
- local_irq_save(flags);
- base_addr[CyCAR] = (u_char)channel;
- write_cy_cmd(base_addr,CyENB_RCVR|CyENB_XMTR);
+ local_irq_save(flags);
+ base_addr[CyCAR] = (u_char) channel;
+ write_cy_cmd(base_addr, CyENB_RCVR | CyENB_XMTR);
- base_addr[CyCAR] = (u_char)channel; /* !!! Is this needed? */
+ base_addr[CyCAR] = (u_char) channel; /* !!! Is this needed? */
base_addr[CyMSVR1] = CyRTS;
/* CP('S');CP('1'); */
base_addr[CyMSVR2] = CyDTR;
#ifdef SERIAL_DEBUG_DTR
- printk("cyc: %d: raising DTR\n", __LINE__);
- printk(" status: 0x%x, 0x%x\n", base_addr[CyMSVR1], base_addr[CyMSVR2]);
+ printk("cyc: %d: raising DTR\n", __LINE__);
+ printk(" status: 0x%x, 0x%x\n", base_addr[CyMSVR1],
+ base_addr[CyMSVR2]);
#endif
base_addr[CyIER] |= CyRxData;
info->flags |= ASYNC_INITIALIZED;
- if (info->tty){
- clear_bit(TTY_IO_ERROR, &info->tty->flags);
+ if (info->tty) {
+ clear_bit(TTY_IO_ERROR, &info->tty->flags);
}
info->xmit_cnt = info->xmit_head = info->xmit_tail = 0;
- local_irq_restore(flags);
+ local_irq_restore(flags);
#ifdef SERIAL_DEBUG_OPEN
- printk(" done\n");
+ printk(" done\n");
#endif
- return 0;
-} /* startup */
+ return 0;
+} /* startup */
-void
-start_xmit( struct cyclades_port *info )
+void start_xmit(struct cyclades_port *info)
{
- unsigned long flags;
- volatile unsigned char *base_addr = (u_char *)BASE_ADDR;
- int channel;
+ unsigned long flags;
+ volatile unsigned char *base_addr = (u_char *) BASE_ADDR;
+ int channel;
- channel = info->line;
- local_irq_save(flags);
+ channel = info->line;
+ local_irq_save(flags);
base_addr[CyCAR] = channel;
base_addr[CyIER] |= CyTxMpty;
- local_irq_restore(flags);
-} /* start_xmit */
+ local_irq_restore(flags);
+} /* start_xmit */
/*
* This routine shuts down a serial port; interrupts are disabled,
* and DTR is dropped if the hangup on close termio flag is on.
*/
-static void
-shutdown(struct cyclades_port * info)
+static void shutdown(struct cyclades_port *info)
{
- unsigned long flags;
- volatile unsigned char *base_addr = (u_char *)BASE_ADDR;
- int channel;
+ unsigned long flags;
+ volatile unsigned char *base_addr = (u_char *) BASE_ADDR;
+ int channel;
- if (!(info->flags & ASYNC_INITIALIZED)){
+ if (!(info->flags & ASYNC_INITIALIZED)) {
/* CP('$'); */
- return;
- }
+ return;
+ }
- channel = info->line;
+ channel = info->line;
#ifdef SERIAL_DEBUG_OPEN
- printk("shutdown channel %d\n", channel);
+ printk("shutdown channel %d\n", channel);
#endif
- /* !!! REALLY MUST WAIT FOR LAST CHARACTER TO BE
- SENT BEFORE DROPPING THE LINE !!! (Perhaps
- set some flag that is read when XMTY happens.)
- Other choices are to delay some fixed interval
- or schedule some later processing.
- */
- local_irq_save(flags);
- if (info->xmit_buf){
- free_page((unsigned long) info->xmit_buf);
- info->xmit_buf = 0;
+ /* !!! REALLY MUST WAIT FOR LAST CHARACTER TO BE
+ SENT BEFORE DROPPING THE LINE !!! (Perhaps
+ set some flag that is read when XMTY happens.)
+ Other choices are to delay some fixed interval
+ or schedule some later processing.
+ */
+ local_irq_save(flags);
+ if (info->xmit_buf) {
+ free_page((unsigned long)info->xmit_buf);
+ info->xmit_buf = NULL;
}
- base_addr[CyCAR] = (u_char)channel;
+ base_addr[CyCAR] = (u_char) channel;
if (!info->tty || (info->tty->termios->c_cflag & HUPCL)) {
- base_addr[CyMSVR1] = 0;
+ base_addr[CyMSVR1] = 0;
/* CP('C');CP('1'); */
- base_addr[CyMSVR2] = 0;
+ base_addr[CyMSVR2] = 0;
#ifdef SERIAL_DEBUG_DTR
- printk("cyc: %d: dropping DTR\n", __LINE__);
- printk(" status: 0x%x, 0x%x\n", base_addr[CyMSVR1], base_addr[CyMSVR2]);
+ printk("cyc: %d: dropping DTR\n", __LINE__);
+ printk(" status: 0x%x, 0x%x\n", base_addr[CyMSVR1],
+ base_addr[CyMSVR2]);
#endif
- }
- write_cy_cmd(base_addr,CyDIS_RCVR);
- /* it may be appropriate to clear _XMIT at
- some later date (after testing)!!! */
+ }
+ write_cy_cmd(base_addr, CyDIS_RCVR);
+ /* it may be appropriate to clear _XMIT at
+ some later date (after testing)!!! */
- if (info->tty){
- set_bit(TTY_IO_ERROR, &info->tty->flags);
+ if (info->tty) {
+ set_bit(TTY_IO_ERROR, &info->tty->flags);
}
info->flags &= ~ASYNC_INITIALIZED;
- local_irq_restore(flags);
+ local_irq_restore(flags);
#ifdef SERIAL_DEBUG_OPEN
- printk(" done\n");
+ printk(" done\n");
#endif
- return;
-} /* shutdown */
+} /* shutdown */
/*
* This routine finds or computes the various line characteristics.
*/
-static void
-config_setup(struct cyclades_port * info)
+static void config_setup(struct cyclades_port *info)
{
- unsigned long flags;
- volatile unsigned char *base_addr = (u_char *)BASE_ADDR;
- int channel;
- unsigned cflag;
- int i;
- unsigned char ti, need_init_chan = 0;
-
- if (!info->tty || !info->tty->termios){
- return;
- }
- if (info->line == -1){
- return;
- }
- cflag = info->tty->termios->c_cflag;
-
- /* baud rate */
- i = cflag & CBAUD;
+ unsigned long flags;
+ volatile unsigned char *base_addr = (u_char *) BASE_ADDR;
+ int channel;
+ unsigned cflag;
+ int i;
+ unsigned char ti, need_init_chan = 0;
+
+ if (!info->tty || !info->tty->termios) {
+ return;
+ }
+ if (info->line == -1) {
+ return;
+ }
+ cflag = info->tty->termios->c_cflag;
+
+ /* baud rate */
+ i = cflag & CBAUD;
#ifdef CBAUDEX
/* Starting with kernel 1.1.65, there is direct support for
higher baud rates. The following code supports those
is still the possibility of supporting 75 kbit/sec with
the Cyclades board.)
*/
- if (i & CBAUDEX) {
- if (i == B57600)
- i = 16;
- else if(i == B115200)
- i = 18;
+ if (i & CBAUDEX) {
+ if (i == B57600)
+ i = 16;
+ else if (i == B115200)
+ i = 18;
#ifdef B78600
- else if(i == B78600)
- i = 17;
+ else if (i == B78600)
+ i = 17;
#endif
- else
- info->tty->termios->c_cflag &= ~CBAUDEX;
- }
-#endif
- if (i == 15) {
- if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
- i += 1;
- if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
- i += 3;
- }
- /* Don't ever change the speed of the console port. It will
- * run at the speed specified in bootinfo, or at 19.2K */
- /* Actually, it should run at whatever speed 166Bug was using */
- /* Note info->timeout isn't used at present */
- if (info != serial_console_info) {
- info->tbpr = baud_bpr[i]; /* Tx BPR */
- info->tco = baud_co[i]; /* Tx CO */
- info->rbpr = baud_bpr[i]; /* Rx BPR */
- info->rco = baud_co[i] >> 5; /* Rx CO */
- if (baud_table[i] == 134) {
- info->timeout = (info->xmit_fifo_size*HZ*30/269) + 2;
- /* get it right for 134.5 baud */
- } else if (baud_table[i]) {
- info->timeout = (info->xmit_fifo_size*HZ*15/baud_table[i]) + 2;
- /* this needs to be propagated into the card info */
+ else
+ info->tty->termios->c_cflag &= ~CBAUDEX;
+ }
+#endif
+ if (i == 15) {
+ if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
+ i += 1;
+ if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
+ i += 3;
+ }
+ /* Don't ever change the speed of the console port. It will
+ * run at the speed specified in bootinfo, or at 19.2K */
+ /* Actually, it should run at whatever speed 166Bug was using */
+ /* Note info->timeout isn't used at present */
+ if (info != serial_console_info) {
+ info->tbpr = baud_bpr[i]; /* Tx BPR */
+ info->tco = baud_co[i]; /* Tx CO */
+ info->rbpr = baud_bpr[i]; /* Rx BPR */
+ info->rco = baud_co[i] >> 5; /* Rx CO */
+ if (baud_table[i] == 134) {
+ info->timeout =
+ (info->xmit_fifo_size * HZ * 30 / 269) + 2;
+ /* get it right for 134.5 baud */
+ } else if (baud_table[i]) {
+ info->timeout =
+ (info->xmit_fifo_size * HZ * 15 / baud_table[i]) +
+ 2;
+ /* this needs to be propagated into the card info */
+ } else {
+ info->timeout = 0;
+ }
+ }
+ /* By tradition (is it a standard?) a baud rate of zero
+ implies the line should be/has been closed. A bit
+ later in this routine such a test is performed. */
+
+ /* byte size and parity */
+ info->cor7 = 0;
+ info->cor6 = 0;
+ info->cor5 = 0;
+ info->cor4 = (info->default_threshold ? info->default_threshold : baud_cor4[i]); /* receive threshold */
+ /* Following two lines added 101295, RGH. */
+ /* It is obviously wrong to access CyCORx, and not info->corx here,
+ * try and remember to fix it later! */
+ channel = info->line;
+ base_addr[CyCAR] = (u_char) channel;
+ if (C_CLOCAL(info->tty)) {
+ if (base_addr[CyIER] & CyMdmCh)
+ base_addr[CyIER] &= ~CyMdmCh; /* without modem intr */
+ /* ignore 1->0 modem transitions */
+ if (base_addr[CyCOR4] & (CyDSR | CyCTS | CyDCD))
+ base_addr[CyCOR4] &= ~(CyDSR | CyCTS | CyDCD);
+ /* ignore 0->1 modem transitions */
+ if (base_addr[CyCOR5] & (CyDSR | CyCTS | CyDCD))
+ base_addr[CyCOR5] &= ~(CyDSR | CyCTS | CyDCD);
} else {
- info->timeout = 0;
- }
- }
- /* By tradition (is it a standard?) a baud rate of zero
- implies the line should be/has been closed. A bit
- later in this routine such a test is performed. */
-
- /* byte size and parity */
- info->cor7 = 0;
- info->cor6 = 0;
- info->cor5 = 0;
- info->cor4 = (info->default_threshold
- ? info->default_threshold
- : baud_cor4[i]); /* receive threshold */
- /* Following two lines added 101295, RGH. */
- /* It is obviously wrong to access CyCORx, and not info->corx here,
- * try and remember to fix it later! */
- channel = info->line;
- base_addr[CyCAR] = (u_char)channel;
- if (C_CLOCAL(info->tty)) {
- if (base_addr[CyIER] & CyMdmCh)
- base_addr[CyIER] &= ~CyMdmCh; /* without modem intr */
- /* ignore 1->0 modem transitions */
- if (base_addr[CyCOR4] & (CyDSR|CyCTS|CyDCD))
- base_addr[CyCOR4] &= ~(CyDSR|CyCTS|CyDCD);
- /* ignore 0->1 modem transitions */
- if (base_addr[CyCOR5] & (CyDSR|CyCTS|CyDCD))
- base_addr[CyCOR5] &= ~(CyDSR|CyCTS|CyDCD);
- } else {
- if ((base_addr[CyIER] & CyMdmCh) != CyMdmCh)
- base_addr[CyIER] |= CyMdmCh; /* with modem intr */
- /* act on 1->0 modem transitions */
- if ((base_addr[CyCOR4] & (CyDSR|CyCTS|CyDCD)) != (CyDSR|CyCTS|CyDCD))
- base_addr[CyCOR4] |= CyDSR|CyCTS|CyDCD;
- /* act on 0->1 modem transitions */
- if ((base_addr[CyCOR5] & (CyDSR|CyCTS|CyDCD)) != (CyDSR|CyCTS|CyDCD))
- base_addr[CyCOR5] |= CyDSR|CyCTS|CyDCD;
- }
- info->cor3 = (cflag & CSTOPB) ? Cy_2_STOP : Cy_1_STOP;
- info->cor2 = CyETC;
- switch(cflag & CSIZE){
- case CS5:
- info->cor1 = Cy_5_BITS;
- break;
- case CS6:
- info->cor1 = Cy_6_BITS;
- break;
- case CS7:
- info->cor1 = Cy_7_BITS;
- break;
- case CS8:
- info->cor1 = Cy_8_BITS;
- break;
- }
- if (cflag & PARENB){
- if (cflag & PARODD){
- info->cor1 |= CyPARITY_O;
- }else{
- info->cor1 |= CyPARITY_E;
- }
- }else{
- info->cor1 |= CyPARITY_NONE;
- }
-
- /* CTS flow control flag */
+ if ((base_addr[CyIER] & CyMdmCh) != CyMdmCh)
+ base_addr[CyIER] |= CyMdmCh; /* with modem intr */
+ /* act on 1->0 modem transitions */
+ if ((base_addr[CyCOR4] & (CyDSR | CyCTS | CyDCD)) !=
+ (CyDSR | CyCTS | CyDCD))
+ base_addr[CyCOR4] |= CyDSR | CyCTS | CyDCD;
+ /* act on 0->1 modem transitions */
+ if ((base_addr[CyCOR5] & (CyDSR | CyCTS | CyDCD)) !=
+ (CyDSR | CyCTS | CyDCD))
+ base_addr[CyCOR5] |= CyDSR | CyCTS | CyDCD;
+ }
+ info->cor3 = (cflag & CSTOPB) ? Cy_2_STOP : Cy_1_STOP;
+ info->cor2 = CyETC;
+ switch (cflag & CSIZE) {
+ case CS5:
+ info->cor1 = Cy_5_BITS;
+ break;
+ case CS6:
+ info->cor1 = Cy_6_BITS;
+ break;
+ case CS7:
+ info->cor1 = Cy_7_BITS;
+ break;
+ case CS8:
+ info->cor1 = Cy_8_BITS;
+ break;
+ }
+ if (cflag & PARENB) {
+ if (cflag & PARODD) {
+ info->cor1 |= CyPARITY_O;
+ } else {
+ info->cor1 |= CyPARITY_E;
+ }
+ } else {
+ info->cor1 |= CyPARITY_NONE;
+ }
+
+ /* CTS flow control flag */
#if 0
- /* Don't complcate matters for now! RGH 141095 */
- if (cflag & CRTSCTS){
- info->flags |= ASYNC_CTS_FLOW;
- info->cor2 |= CyCtsAE;
- }else{
- info->flags &= ~ASYNC_CTS_FLOW;
- info->cor2 &= ~CyCtsAE;
- }
-#endif
- if (cflag & CLOCAL)
- info->flags &= ~ASYNC_CHECK_CD;
- else
- info->flags |= ASYNC_CHECK_CD;
+ /* Don't complcate matters for now! RGH 141095 */
+ if (cflag & CRTSCTS) {
+ info->flags |= ASYNC_CTS_FLOW;
+ info->cor2 |= CyCtsAE;
+ } else {
+ info->flags &= ~ASYNC_CTS_FLOW;
+ info->cor2 &= ~CyCtsAE;
+ }
+#endif
+ if (cflag & CLOCAL)
+ info->flags &= ~ASYNC_CHECK_CD;
+ else
+ info->flags |= ASYNC_CHECK_CD;
/***********************************************
The hardware option, CyRtsAO, presents RTS when
cable. Contact Marcio Saito for details.
***********************************************/
- channel = info->line;
+ channel = info->line;
- local_irq_save(flags);
- base_addr[CyCAR] = (u_char)channel;
+ local_irq_save(flags);
+ base_addr[CyCAR] = (u_char) channel;
/* CyCMR set once only in mvme167_init_serial() */
if (base_addr[CyLICR] != channel << 2)
- base_addr[CyLICR] = channel << 2;
+ base_addr[CyLICR] = channel << 2;
if (base_addr[CyLIVR] != 0x5c)
- base_addr[CyLIVR] = 0x5c;
+ base_addr[CyLIVR] = 0x5c;
- /* tx and rx baud rate */
+ /* tx and rx baud rate */
if (base_addr[CyCOR1] != info->cor1)
- need_init_chan = 1;
+ need_init_chan = 1;
if (base_addr[CyTCOR] != info->tco)
- base_addr[CyTCOR] = info->tco;
+ base_addr[CyTCOR] = info->tco;
if (base_addr[CyTBPR] != info->tbpr)
- base_addr[CyTBPR] = info->tbpr;
+ base_addr[CyTBPR] = info->tbpr;
if (base_addr[CyRCOR] != info->rco)
- base_addr[CyRCOR] = info->rco;
+ base_addr[CyRCOR] = info->rco;
if (base_addr[CyRBPR] != info->rbpr)
- base_addr[CyRBPR] = info->rbpr;
+ base_addr[CyRBPR] = info->rbpr;
/* set line characteristics according configuration */
if (base_addr[CySCHR1] != START_CHAR(info->tty))
- base_addr[CySCHR1] = START_CHAR(info->tty);
+ base_addr[CySCHR1] = START_CHAR(info->tty);
if (base_addr[CySCHR2] != STOP_CHAR(info->tty))
- base_addr[CySCHR2] = STOP_CHAR(info->tty);
+ base_addr[CySCHR2] = STOP_CHAR(info->tty);
if (base_addr[CySCRL] != START_CHAR(info->tty))
- base_addr[CySCRL] = START_CHAR(info->tty);
+ base_addr[CySCRL] = START_CHAR(info->tty);
if (base_addr[CySCRH] != START_CHAR(info->tty))
- base_addr[CySCRH] = START_CHAR(info->tty);
+ base_addr[CySCRH] = START_CHAR(info->tty);
if (base_addr[CyCOR1] != info->cor1)
- base_addr[CyCOR1] = info->cor1;
+ base_addr[CyCOR1] = info->cor1;
if (base_addr[CyCOR2] != info->cor2)
- base_addr[CyCOR2] = info->cor2;
+ base_addr[CyCOR2] = info->cor2;
if (base_addr[CyCOR3] != info->cor3)
- base_addr[CyCOR3] = info->cor3;
+ base_addr[CyCOR3] = info->cor3;
if (base_addr[CyCOR4] != info->cor4)
- base_addr[CyCOR4] = info->cor4;
+ base_addr[CyCOR4] = info->cor4;
if (base_addr[CyCOR5] != info->cor5)
- base_addr[CyCOR5] = info->cor5;
+ base_addr[CyCOR5] = info->cor5;
if (base_addr[CyCOR6] != info->cor6)
- base_addr[CyCOR6] = info->cor6;
+ base_addr[CyCOR6] = info->cor6;
if (base_addr[CyCOR7] != info->cor7)
- base_addr[CyCOR7] = info->cor7;
+ base_addr[CyCOR7] = info->cor7;
if (need_init_chan)
- write_cy_cmd(base_addr,CyINIT_CHAN);
+ write_cy_cmd(base_addr, CyINIT_CHAN);
- base_addr[CyCAR] = (u_char)channel; /* !!! Is this needed? */
+ base_addr[CyCAR] = (u_char) channel; /* !!! Is this needed? */
/* 2ms default rx timeout */
ti = info->default_timeout ? info->default_timeout : 0x02;
if (base_addr[CyRTPRL] != ti)
- base_addr[CyRTPRL] = ti;
+ base_addr[CyRTPRL] = ti;
if (base_addr[CyRTPRH] != 0)
- base_addr[CyRTPRH] = 0;
+ base_addr[CyRTPRH] = 0;
/* Set up RTS here also ????? RGH 141095 */
- if(i == 0){ /* baud rate is zero, turn off line */
- if ((base_addr[CyMSVR2] & CyDTR) == CyDTR)
- base_addr[CyMSVR2] = 0;
+ if (i == 0) { /* baud rate is zero, turn off line */
+ if ((base_addr[CyMSVR2] & CyDTR) == CyDTR)
+ base_addr[CyMSVR2] = 0;
#ifdef SERIAL_DEBUG_DTR
- printk("cyc: %d: dropping DTR\n", __LINE__);
- printk(" status: 0x%x, 0x%x\n", base_addr[CyMSVR1], base_addr[CyMSVR2]);
+ printk("cyc: %d: dropping DTR\n", __LINE__);
+ printk(" status: 0x%x, 0x%x\n", base_addr[CyMSVR1],
+ base_addr[CyMSVR2]);
#endif
- }else{
- if ((base_addr[CyMSVR2] & CyDTR) != CyDTR)
- base_addr[CyMSVR2] = CyDTR;
+ } else {
+ if ((base_addr[CyMSVR2] & CyDTR) != CyDTR)
+ base_addr[CyMSVR2] = CyDTR;
#ifdef SERIAL_DEBUG_DTR
- printk("cyc: %d: raising DTR\n", __LINE__);
- printk(" status: 0x%x, 0x%x\n", base_addr[CyMSVR1], base_addr[CyMSVR2]);
+ printk("cyc: %d: raising DTR\n", __LINE__);
+ printk(" status: 0x%x, 0x%x\n", base_addr[CyMSVR1],
+ base_addr[CyMSVR2]);
#endif
}
- if (info->tty){
- clear_bit(TTY_IO_ERROR, &info->tty->flags);
+ if (info->tty) {
+ clear_bit(TTY_IO_ERROR, &info->tty->flags);
}
- local_irq_restore(flags);
-
-} /* config_setup */
+ local_irq_restore(flags);
+} /* config_setup */
-static void
-cy_put_char(struct tty_struct *tty, unsigned char ch)
+static void cy_put_char(struct tty_struct *tty, unsigned char ch)
{
- struct cyclades_port *info = (struct cyclades_port *)tty->driver_data;
- unsigned long flags;
+ struct cyclades_port *info = (struct cyclades_port *)tty->driver_data;
+ unsigned long flags;
#ifdef SERIAL_DEBUG_IO
- printk("cy_put_char %s(0x%02x)\n", tty->name, ch);
+ printk("cy_put_char %s(0x%02x)\n", tty->name, ch);
#endif
- if (serial_paranoia_check(info, tty->name, "cy_put_char"))
- return;
+ if (serial_paranoia_check(info, tty->name, "cy_put_char"))
+ return;
- if (!tty || !info->xmit_buf)
- return;
+ if (!info->xmit_buf)
+ return;
- local_irq_save(flags);
+ local_irq_save(flags);
if (info->xmit_cnt >= PAGE_SIZE - 1) {
- local_irq_restore(flags);
- return;
+ local_irq_restore(flags);
+ return;
}
info->xmit_buf[info->xmit_head++] = ch;
info->xmit_head &= PAGE_SIZE - 1;
info->xmit_cnt++;
- local_irq_restore(flags);
-} /* cy_put_char */
-
+ local_irq_restore(flags);
+} /* cy_put_char */
-static void
-cy_flush_chars(struct tty_struct *tty)
+static void cy_flush_chars(struct tty_struct *tty)
{
- struct cyclades_port *info = (struct cyclades_port *)tty->driver_data;
- unsigned long flags;
- volatile unsigned char *base_addr = (u_char *)BASE_ADDR;
- int channel;
-
+ struct cyclades_port *info = (struct cyclades_port *)tty->driver_data;
+ unsigned long flags;
+ volatile unsigned char *base_addr = (u_char *) BASE_ADDR;
+ int channel;
+
#ifdef SERIAL_DEBUG_IO
- printk("cy_flush_chars %s\n", tty->name); /* */
+ printk("cy_flush_chars %s\n", tty->name); /* */
#endif
- if (serial_paranoia_check(info, tty->name, "cy_flush_chars"))
- return;
+ if (serial_paranoia_check(info, tty->name, "cy_flush_chars"))
+ return;
- if (info->xmit_cnt <= 0 || tty->stopped
- || tty->hw_stopped || !info->xmit_buf)
- return;
+ if (info->xmit_cnt <= 0 || tty->stopped
+ || tty->hw_stopped || !info->xmit_buf)
+ return;
- channel = info->line;
+ channel = info->line;
- local_irq_save(flags);
+ local_irq_save(flags);
base_addr[CyCAR] = channel;
base_addr[CyIER] |= CyTxMpty;
- local_irq_restore(flags);
-} /* cy_flush_chars */
-
+ local_irq_restore(flags);
+} /* cy_flush_chars */
/* This routine gets called when tty_write has put something into
the write_queue. If the port is not already transmitting stuff,
routine will then ensure that the characters are sent. If the
port is already active, there is no need to kick it.
*/
-static int
-cy_write(struct tty_struct * tty,
- const unsigned char *buf, int count)
+static int cy_write(struct tty_struct *tty, const unsigned char *buf, int count)
{
- struct cyclades_port *info = (struct cyclades_port *)tty->driver_data;
- unsigned long flags;
- int c, total = 0;
+ struct cyclades_port *info = (struct cyclades_port *)tty->driver_data;
+ unsigned long flags;
+ int c, total = 0;
#ifdef SERIAL_DEBUG_IO
- printk("cy_write %s\n", tty->name); /* */
+ printk("cy_write %s\n", tty->name); /* */
#endif
- if (serial_paranoia_check(info, tty->name, "cy_write")){
- return 0;
- }
-
- if (!tty || !info->xmit_buf || !tmp_buf){
- return 0;
- }
-
- while (1) {
- local_irq_save(flags);
- c = min_t(int, count, min(SERIAL_XMIT_SIZE - info->xmit_cnt - 1,
- SERIAL_XMIT_SIZE - info->xmit_head));
- if (c <= 0) {
- local_irq_restore(flags);
- break;
- }
-
- memcpy(info->xmit_buf + info->xmit_head, buf, c);
- info->xmit_head = (info->xmit_head + c) & (SERIAL_XMIT_SIZE-1);
- info->xmit_cnt += c;
- local_irq_restore(flags);
-
- buf += c;
- count -= c;
- total += c;
- }
-
- if (info->xmit_cnt
- && !tty->stopped
- && !tty->hw_stopped ) {
- start_xmit(info);
- }
- return total;
-} /* cy_write */
+ if (serial_paranoia_check(info, tty->name, "cy_write")) {
+ return 0;
+ }
+ if (!info->xmit_buf) {
+ return 0;
+ }
-static int
-cy_write_room(struct tty_struct *tty)
+ while (1) {
+ local_irq_save(flags);
+ c = min_t(int, count, min(SERIAL_XMIT_SIZE - info->xmit_cnt - 1,
+ SERIAL_XMIT_SIZE - info->xmit_head));
+ if (c <= 0) {
+ local_irq_restore(flags);
+ break;
+ }
+
+ memcpy(info->xmit_buf + info->xmit_head, buf, c);
+ info->xmit_head =
+ (info->xmit_head + c) & (SERIAL_XMIT_SIZE - 1);
+ info->xmit_cnt += c;
+ local_irq_restore(flags);
+
+ buf += c;
+ count -= c;
+ total += c;
+ }
+
+ if (info->xmit_cnt && !tty->stopped && !tty->hw_stopped) {
+ start_xmit(info);
+ }
+ return total;
+} /* cy_write */
+
+static int cy_write_room(struct tty_struct *tty)
{
- struct cyclades_port *info = (struct cyclades_port *)tty->driver_data;
- int ret;
-
+ struct cyclades_port *info = (struct cyclades_port *)tty->driver_data;
+ int ret;
+
#ifdef SERIAL_DEBUG_IO
- printk("cy_write_room %s\n", tty->name); /* */
+ printk("cy_write_room %s\n", tty->name); /* */
#endif
- if (serial_paranoia_check(info, tty->name, "cy_write_room"))
- return 0;
- ret = PAGE_SIZE - info->xmit_cnt - 1;
- if (ret < 0)
- ret = 0;
- return ret;
-} /* cy_write_room */
-
+ if (serial_paranoia_check(info, tty->name, "cy_write_room"))
+ return 0;
+ ret = PAGE_SIZE - info->xmit_cnt - 1;
+ if (ret < 0)
+ ret = 0;
+ return ret;
+} /* cy_write_room */
-static int
-cy_chars_in_buffer(struct tty_struct *tty)
+static int cy_chars_in_buffer(struct tty_struct *tty)
{
- struct cyclades_port *info = (struct cyclades_port *)tty->driver_data;
-
+ struct cyclades_port *info = (struct cyclades_port *)tty->driver_data;
+
#ifdef SERIAL_DEBUG_IO
- printk("cy_chars_in_buffer %s %d\n", tty->name, info->xmit_cnt); /* */
+ printk("cy_chars_in_buffer %s %d\n", tty->name, info->xmit_cnt); /* */
#endif
- if (serial_paranoia_check(info, tty->name, "cy_chars_in_buffer"))
- return 0;
-
- return info->xmit_cnt;
-} /* cy_chars_in_buffer */
+ if (serial_paranoia_check(info, tty->name, "cy_chars_in_buffer"))
+ return 0;
+ return info->xmit_cnt;
+} /* cy_chars_in_buffer */
-static void
-cy_flush_buffer(struct tty_struct *tty)
+static void cy_flush_buffer(struct tty_struct *tty)
{
- struct cyclades_port *info = (struct cyclades_port *)tty->driver_data;
- unsigned long flags;
-
+ struct cyclades_port *info = (struct cyclades_port *)tty->driver_data;
+ unsigned long flags;
+
#ifdef SERIAL_DEBUG_IO
- printk("cy_flush_buffer %s\n", tty->name); /* */
+ printk("cy_flush_buffer %s\n", tty->name); /* */
#endif
- if (serial_paranoia_check(info, tty->name, "cy_flush_buffer"))
- return;
- local_irq_save(flags);
+ if (serial_paranoia_check(info, tty->name, "cy_flush_buffer"))
+ return;
+ local_irq_save(flags);
info->xmit_cnt = info->xmit_head = info->xmit_tail = 0;
- local_irq_restore(flags);
- tty_wakeup(tty);
-} /* cy_flush_buffer */
-
+ local_irq_restore(flags);
+ tty_wakeup(tty);
+} /* cy_flush_buffer */
/* This routine is called by the upper-layer tty layer to signal
that incoming characters should be throttled or that the
throttle should be released.
*/
-static void
-cy_throttle(struct tty_struct * tty)
+static void cy_throttle(struct tty_struct *tty)
{
- struct cyclades_port *info = (struct cyclades_port *)tty->driver_data;
- unsigned long flags;
- volatile unsigned char *base_addr = (u_char *)BASE_ADDR;
- int channel;
+ struct cyclades_port *info = (struct cyclades_port *)tty->driver_data;
+ unsigned long flags;
+ volatile unsigned char *base_addr = (u_char *) BASE_ADDR;
+ int channel;
#ifdef SERIAL_DEBUG_THROTTLE
- char buf[64];
-
- printk("throttle %s: %d....\n", tty_name(tty, buf),
- tty->ldisc.chars_in_buffer(tty));
- printk("cy_throttle %s\n", tty->name);
+ char buf[64];
+
+ printk("throttle %s: %d....\n", tty_name(tty, buf),
+ tty->ldisc.chars_in_buffer(tty));
+ printk("cy_throttle %s\n", tty->name);
#endif
- if (serial_paranoia_check(info, tty->name, "cy_nthrottle")){
- return;
- }
+ if (serial_paranoia_check(info, tty->name, "cy_nthrottle")) {
+ return;
+ }
- if (I_IXOFF(tty)) {
- info->x_char = STOP_CHAR(tty);
- /* Should use the "Send Special Character" feature!!! */
- }
+ if (I_IXOFF(tty)) {
+ info->x_char = STOP_CHAR(tty);
+ /* Should use the "Send Special Character" feature!!! */
+ }
- channel = info->line;
+ channel = info->line;
- local_irq_save(flags);
- base_addr[CyCAR] = (u_char)channel;
+ local_irq_save(flags);
+ base_addr[CyCAR] = (u_char) channel;
base_addr[CyMSVR1] = 0;
- local_irq_restore(flags);
-
- return;
-} /* cy_throttle */
-
+ local_irq_restore(flags);
+} /* cy_throttle */
-static void
-cy_unthrottle(struct tty_struct * tty)
+static void cy_unthrottle(struct tty_struct *tty)
{
- struct cyclades_port *info = (struct cyclades_port *)tty->driver_data;
- unsigned long flags;
- volatile unsigned char *base_addr = (u_char *)BASE_ADDR;
- int channel;
+ struct cyclades_port *info = (struct cyclades_port *)tty->driver_data;
+ unsigned long flags;
+ volatile unsigned char *base_addr = (u_char *) BASE_ADDR;
+ int channel;
#ifdef SERIAL_DEBUG_THROTTLE
- char buf[64];
-
- printk("throttle %s: %d....\n", tty_name(tty, buf),
- tty->ldisc.chars_in_buffer(tty));
- printk("cy_unthrottle %s\n", tty->name);
+ char buf[64];
+
+ printk("throttle %s: %d....\n", tty_name(tty, buf),
+ tty->ldisc.chars_in_buffer(tty));
+ printk("cy_unthrottle %s\n", tty->name);
#endif
- if (serial_paranoia_check(info, tty->name, "cy_nthrottle")){
- return;
- }
+ if (serial_paranoia_check(info, tty->name, "cy_nthrottle")) {
+ return;
+ }
- if (I_IXOFF(tty)) {
- info->x_char = START_CHAR(tty);
- /* Should use the "Send Special Character" feature!!! */
- }
+ if (I_IXOFF(tty)) {
+ info->x_char = START_CHAR(tty);
+ /* Should use the "Send Special Character" feature!!! */
+ }
- channel = info->line;
+ channel = info->line;
- local_irq_save(flags);
- base_addr[CyCAR] = (u_char)channel;
+ local_irq_save(flags);
+ base_addr[CyCAR] = (u_char) channel;
base_addr[CyMSVR1] = CyRTS;
- local_irq_restore(flags);
-
- return;
-} /* cy_unthrottle */
+ local_irq_restore(flags);
+} /* cy_unthrottle */
static int
-get_serial_info(struct cyclades_port * info,
- struct serial_struct * retinfo)
+get_serial_info(struct cyclades_port *info,
+ struct serial_struct __user * retinfo)
{
- struct serial_struct tmp;
+ struct serial_struct tmp;
/* CP('g'); */
- if (!retinfo)
- return -EFAULT;
- memset(&tmp, 0, sizeof(tmp));
- tmp.type = info->type;
- tmp.line = info->line;
- tmp.port = info->line;
- tmp.irq = 0;
- tmp.flags = info->flags;
- tmp.baud_base = 0; /*!!!*/
- tmp.close_delay = info->close_delay;
- tmp.custom_divisor = 0; /*!!!*/
- tmp.hub6 = 0; /*!!!*/
- return copy_to_user(retinfo,&tmp,sizeof(*retinfo)) ? -EFAULT : 0;
-} /* get_serial_info */
+ if (!retinfo)
+ return -EFAULT;
+ memset(&tmp, 0, sizeof(tmp));
+ tmp.type = info->type;
+ tmp.line = info->line;
+ tmp.port = info->line;
+ tmp.irq = 0;
+ tmp.flags = info->flags;
+ tmp.baud_base = 0; /*!!! */
+ tmp.close_delay = info->close_delay;
+ tmp.custom_divisor = 0; /*!!! */
+ tmp.hub6 = 0; /*!!! */
+ return copy_to_user(retinfo, &tmp, sizeof(*retinfo)) ? -EFAULT : 0;
+} /* get_serial_info */
static int
-set_serial_info(struct cyclades_port * info,
- struct serial_struct * new_info)
+set_serial_info(struct cyclades_port *info,
+ struct serial_struct __user * new_info)
{
- struct serial_struct new_serial;
- struct cyclades_port old_info;
+ struct serial_struct new_serial;
+ struct cyclades_port old_info;
/* CP('s'); */
- if (!new_info)
- return -EFAULT;
- if (copy_from_user(&new_serial,new_info,sizeof(new_serial)))
- return -EFAULT;
- old_info = *info;
+ if (!new_info)
+ return -EFAULT;
+ if (copy_from_user(&new_serial, new_info, sizeof(new_serial)))
+ return -EFAULT;
+ old_info = *info;
+
+ if (!capable(CAP_SYS_ADMIN)) {
+ if ((new_serial.close_delay != info->close_delay) ||
+ ((new_serial.flags & ASYNC_FLAGS & ~ASYNC_USR_MASK) !=
+ (info->flags & ASYNC_FLAGS & ~ASYNC_USR_MASK)))
+ return -EPERM;
+ info->flags = ((info->flags & ~ASYNC_USR_MASK) |
+ (new_serial.flags & ASYNC_USR_MASK));
+ goto check_and_exit;
+ }
- if (!capable(CAP_SYS_ADMIN)) {
- if ((new_serial.close_delay != info->close_delay) ||
- ((new_serial.flags & ASYNC_FLAGS & ~ASYNC_USR_MASK) !=
- (info->flags & ASYNC_FLAGS & ~ASYNC_USR_MASK)))
- return -EPERM;
- info->flags = ((info->flags & ~ASYNC_USR_MASK) |
- (new_serial.flags & ASYNC_USR_MASK));
- goto check_and_exit;
- }
+ /*
+ * OK, past this point, all the error checking has been done.
+ * At this point, we start making changes.....
+ */
+ info->flags = ((info->flags & ~ASYNC_FLAGS) |
+ (new_serial.flags & ASYNC_FLAGS));
+ info->close_delay = new_serial.close_delay;
- /*
- * OK, past this point, all the error checking has been done.
- * At this point, we start making changes.....
- */
+check_and_exit:
+ if (info->flags & ASYNC_INITIALIZED) {
+ config_setup(info);
+ return 0;
+ }
+ return startup(info);
+} /* set_serial_info */
- info->flags = ((info->flags & ~ASYNC_FLAGS) |
- (new_serial.flags & ASYNC_FLAGS));
- info->close_delay = new_serial.close_delay;
+static int cy_tiocmget(struct tty_struct *tty, struct file *file)
+{
+ struct cyclades_port *info = (struct cyclades_port *)tty->driver_data;
+ int channel;
+ volatile unsigned char *base_addr = (u_char *) BASE_ADDR;
+ unsigned long flags;
+ unsigned char status;
+ channel = info->line;
-check_and_exit:
- if (info->flags & ASYNC_INITIALIZED){
- config_setup(info);
- return 0;
- }else{
- return startup(info);
- }
-} /* set_serial_info */
+ local_irq_save(flags);
+ base_addr[CyCAR] = (u_char) channel;
+ status = base_addr[CyMSVR1] | base_addr[CyMSVR2];
+ local_irq_restore(flags);
-static int
-cy_tiocmget(struct tty_struct *tty, struct file *file)
-{
- struct cyclades_port * info = (struct cyclades_port *)tty->driver_data;
- int channel;
- volatile unsigned char *base_addr = (u_char *)BASE_ADDR;
- unsigned long flags;
- unsigned char status;
- unsigned int result;
-
- channel = info->line;
-
- local_irq_save(flags);
- base_addr[CyCAR] = (u_char)channel;
- status = base_addr[CyMSVR1] | base_addr[CyMSVR2];
- local_irq_restore(flags);
-
- return ((status & CyRTS) ? TIOCM_RTS : 0)
- | ((status & CyDTR) ? TIOCM_DTR : 0)
- | ((status & CyDCD) ? TIOCM_CAR : 0)
- | ((status & CyDSR) ? TIOCM_DSR : 0)
- | ((status & CyCTS) ? TIOCM_CTS : 0);
-} /* cy_tiocmget */
+ return ((status & CyRTS) ? TIOCM_RTS : 0)
+ | ((status & CyDTR) ? TIOCM_DTR : 0)
+ | ((status & CyDCD) ? TIOCM_CAR : 0)
+ | ((status & CyDSR) ? TIOCM_DSR : 0)
+ | ((status & CyCTS) ? TIOCM_CTS : 0);
+} /* cy_tiocmget */
static int
cy_tiocmset(struct tty_struct *tty, struct file *file,
unsigned int set, unsigned int clear)
{
- struct cyclades_port * info = (struct cyclades_port *)tty->driver_data;
- int channel;
- volatile unsigned char *base_addr = (u_char *)BASE_ADDR;
- unsigned long flags;
- unsigned int arg;
-
- channel = info->line;
-
- if (set & TIOCM_RTS){
- local_irq_save(flags);
- base_addr[CyCAR] = (u_char)channel;
+ struct cyclades_port *info = (struct cyclades_port *)tty->driver_data;
+ int channel;
+ volatile unsigned char *base_addr = (u_char *) BASE_ADDR;
+ unsigned long flags;
+
+ channel = info->line;
+
+ if (set & TIOCM_RTS) {
+ local_irq_save(flags);
+ base_addr[CyCAR] = (u_char) channel;
base_addr[CyMSVR1] = CyRTS;
- local_irq_restore(flags);
+ local_irq_restore(flags);
}
- if (set & TIOCM_DTR){
- local_irq_save(flags);
- base_addr[CyCAR] = (u_char)channel;
+ if (set & TIOCM_DTR) {
+ local_irq_save(flags);
+ base_addr[CyCAR] = (u_char) channel;
/* CP('S');CP('2'); */
- base_addr[CyMSVR2] = CyDTR;
+ base_addr[CyMSVR2] = CyDTR;
#ifdef SERIAL_DEBUG_DTR
- printk("cyc: %d: raising DTR\n", __LINE__);
- printk(" status: 0x%x, 0x%x\n", base_addr[CyMSVR1], base_addr[CyMSVR2]);
+ printk("cyc: %d: raising DTR\n", __LINE__);
+ printk(" status: 0x%x, 0x%x\n", base_addr[CyMSVR1],
+ base_addr[CyMSVR2]);
#endif
- local_irq_restore(flags);
+ local_irq_restore(flags);
}
- if (clear & TIOCM_RTS){
- local_irq_save(flags);
- base_addr[CyCAR] = (u_char)channel;
+ if (clear & TIOCM_RTS) {
+ local_irq_save(flags);
+ base_addr[CyCAR] = (u_char) channel;
base_addr[CyMSVR1] = 0;
- local_irq_restore(flags);
+ local_irq_restore(flags);
}
- if (clear & TIOCM_DTR){
- local_irq_save(flags);
- base_addr[CyCAR] = (u_char)channel;
+ if (clear & TIOCM_DTR) {
+ local_irq_save(flags);
+ base_addr[CyCAR] = (u_char) channel;
/* CP('C');CP('2'); */
- base_addr[CyMSVR2] = 0;
+ base_addr[CyMSVR2] = 0;
#ifdef SERIAL_DEBUG_DTR
- printk("cyc: %d: dropping DTR\n", __LINE__);
- printk(" status: 0x%x, 0x%x\n", base_addr[CyMSVR1], base_addr[CyMSVR2]);
+ printk("cyc: %d: dropping DTR\n", __LINE__);
+ printk(" status: 0x%x, 0x%x\n", base_addr[CyMSVR1],
+ base_addr[CyMSVR2]);
#endif
- local_irq_restore(flags);
+ local_irq_restore(flags);
}
- return 0;
-} /* set_modem_info */
-
-static void
-send_break( struct cyclades_port * info, int duration)
-{ /* Let the transmit ISR take care of this (since it
- requires stuffing characters into the output stream).
- */
- info->x_break = duration;
- if (!info->xmit_cnt ) {
- start_xmit(info);
- }
-} /* send_break */
+ return 0;
+} /* set_modem_info */
+
+static void send_break(struct cyclades_port *info, int duration)
+{ /* Let the transmit ISR take care of this (since it
+ requires stuffing characters into the output stream).
+ */
+ info->x_break = duration;
+ if (!info->xmit_cnt) {
+ start_xmit(info);
+ }
+} /* send_break */
static int
-get_mon_info(struct cyclades_port * info, struct cyclades_monitor * mon)
+get_mon_info(struct cyclades_port *info, struct cyclades_monitor __user * mon)
{
- if (copy_to_user(mon, &info->mon, sizeof(struct cyclades_monitor)))
- return -EFAULT;
- info->mon.int_count = 0;
- info->mon.char_count = 0;
- info->mon.char_max = 0;
- info->mon.char_last = 0;
- return 0;
+ if (copy_to_user(mon, &info->mon, sizeof(struct cyclades_monitor)))
+ return -EFAULT;
+ info->mon.int_count = 0;
+ info->mon.char_count = 0;
+ info->mon.char_max = 0;
+ info->mon.char_last = 0;
+ return 0;
}
-static int
-set_threshold(struct cyclades_port * info, unsigned long *arg)
+static int set_threshold(struct cyclades_port *info, unsigned long __user * arg)
{
- volatile unsigned char *base_addr = (u_char *)BASE_ADDR;
- unsigned long value;
- int channel;
-
- if (get_user(value, arg))
- return -EFAULT;
-
- channel = info->line;
- info->cor4 &= ~CyREC_FIFO;
- info->cor4 |= value & CyREC_FIFO;
- base_addr[CyCOR4] = info->cor4;
- return 0;
+ volatile unsigned char *base_addr = (u_char *) BASE_ADDR;
+ unsigned long value;
+ int channel;
+
+ if (get_user(value, arg))
+ return -EFAULT;
+
+ channel = info->line;
+ info->cor4 &= ~CyREC_FIFO;
+ info->cor4 |= value & CyREC_FIFO;
+ base_addr[CyCOR4] = info->cor4;
+ return 0;
}
static int
-get_threshold(struct cyclades_port * info, unsigned long *value)
+get_threshold(struct cyclades_port *info, unsigned long __user * value)
{
- volatile unsigned char *base_addr = (u_char *)BASE_ADDR;
- int channel;
- unsigned long tmp;
-
- channel = info->line;
-
- tmp = base_addr[CyCOR4] & CyREC_FIFO;
- return put_user(tmp,value);
+ volatile unsigned char *base_addr = (u_char *) BASE_ADDR;
+ int channel;
+ unsigned long tmp;
+
+ channel = info->line;
+
+ tmp = base_addr[CyCOR4] & CyREC_FIFO;
+ return put_user(tmp, value);
}
static int
-set_default_threshold(struct cyclades_port * info, unsigned long *arg)
+set_default_threshold(struct cyclades_port *info, unsigned long __user * arg)
{
- unsigned long value;
+ unsigned long value;
- if (get_user(value, arg))
- return -EFAULT;
+ if (get_user(value, arg))
+ return -EFAULT;
- info->default_threshold = value & 0x0f;
- return 0;
+ info->default_threshold = value & 0x0f;
+ return 0;
}
static int
-get_default_threshold(struct cyclades_port * info, unsigned long *value)
+get_default_threshold(struct cyclades_port *info, unsigned long __user * value)
{
- return put_user(info->default_threshold,value);
+ return put_user(info->default_threshold, value);
}
-static int
-set_timeout(struct cyclades_port * info, unsigned long *arg)
+static int set_timeout(struct cyclades_port *info, unsigned long __user * arg)
{
- volatile unsigned char *base_addr = (u_char *)BASE_ADDR;
- int channel;
- unsigned long value;
-
- if (get_user(value, arg))
- return -EFAULT;
-
- channel = info->line;
-
- base_addr[CyRTPRL] = value & 0xff;
- base_addr[CyRTPRH] = (value >> 8) & 0xff;
- return 0;
+ volatile unsigned char *base_addr = (u_char *) BASE_ADDR;
+ int channel;
+ unsigned long value;
+
+ if (get_user(value, arg))
+ return -EFAULT;
+
+ channel = info->line;
+
+ base_addr[CyRTPRL] = value & 0xff;
+ base_addr[CyRTPRH] = (value >> 8) & 0xff;
+ return 0;
}
-static int
-get_timeout(struct cyclades_port * info, unsigned long *value)
+static int get_timeout(struct cyclades_port *info, unsigned long __user * value)
{
- volatile unsigned char *base_addr = (u_char *)BASE_ADDR;
- int channel;
- unsigned long tmp;
-
- channel = info->line;
-
- tmp = base_addr[CyRTPRL];
- return put_user(tmp,value);
+ volatile unsigned char *base_addr = (u_char *) BASE_ADDR;
+ int channel;
+ unsigned long tmp;
+
+ channel = info->line;
+
+ tmp = base_addr[CyRTPRL];
+ return put_user(tmp, value);
}
-static int
-set_default_timeout(struct cyclades_port * info, unsigned long value)
+static int set_default_timeout(struct cyclades_port *info, unsigned long value)
{
- info->default_timeout = value & 0xff;
- return 0;
+ info->default_timeout = value & 0xff;
+ return 0;
}
static int
-get_default_timeout(struct cyclades_port * info, unsigned long *value)
+get_default_timeout(struct cyclades_port *info, unsigned long __user * value)
{
- return put_user(info->default_timeout,value);
+ return put_user(info->default_timeout, value);
}
static int
-cy_ioctl(struct tty_struct *tty, struct file * file,
- unsigned int cmd, unsigned long arg)
+cy_ioctl(struct tty_struct *tty, struct file *file,
+ unsigned int cmd, unsigned long arg)
{
- unsigned long val;
- struct cyclades_port * info = (struct cyclades_port *)tty->driver_data;
- int ret_val = 0;
+ unsigned long val;
+ struct cyclades_port *info = (struct cyclades_port *)tty->driver_data;
+ int ret_val = 0;
+ void __user *argp = (void __user *)arg;
#ifdef SERIAL_DEBUG_OTHER
- printk("cy_ioctl %s, cmd = %x arg = %lx\n", tty->name, cmd, arg); /* */
-#endif
-
- switch (cmd) {
- case CYGETMON:
- ret_val = get_mon_info(info, (struct cyclades_monitor *)arg);
- break;
- case CYGETTHRESH:
- ret_val = get_threshold(info, (unsigned long *)arg);
- break;
- case CYSETTHRESH:
- ret_val = set_threshold(info, (unsigned long *)arg);
- break;
- case CYGETDEFTHRESH:
- ret_val = get_default_threshold(info, (unsigned long *)arg);
- break;
- case CYSETDEFTHRESH:
- ret_val = set_default_threshold(info, (unsigned long *)arg);
- break;
- case CYGETTIMEOUT:
- ret_val = get_timeout(info, (unsigned long *)arg);
- break;
- case CYSETTIMEOUT:
- ret_val = set_timeout(info, (unsigned long *)arg);
- break;
- case CYGETDEFTIMEOUT:
- ret_val = get_default_timeout(info, (unsigned long *)arg);
- break;
- case CYSETDEFTIMEOUT:
- ret_val = set_default_timeout(info, (unsigned long)arg);
- break;
- case TCSBRK: /* SVID version: non-zero arg --> no break */
- ret_val = tty_check_change(tty);
- if (ret_val)
- break;
- tty_wait_until_sent(tty,0);
- if (!arg)
- send_break(info, HZ/4); /* 1/4 second */
- break;
- case TCSBRKP: /* support for POSIX tcsendbreak() */
- ret_val = tty_check_change(tty);
- if (ret_val)
+ printk("cy_ioctl %s, cmd = %x arg = %lx\n", tty->name, cmd, arg); /* */
+#endif
+
+ switch (cmd) {
+ case CYGETMON:
+ ret_val = get_mon_info(info, argp);
+ break;
+ case CYGETTHRESH:
+ ret_val = get_threshold(info, argp);
+ break;
+ case CYSETTHRESH:
+ ret_val = set_threshold(info, argp);
+ break;
+ case CYGETDEFTHRESH:
+ ret_val = get_default_threshold(info, argp);
+ break;
+ case CYSETDEFTHRESH:
+ ret_val = set_default_threshold(info, argp);
+ break;
+ case CYGETTIMEOUT:
+ ret_val = get_timeout(info, argp);
+ break;
+ case CYSETTIMEOUT:
+ ret_val = set_timeout(info, argp);
+ break;
+ case CYGETDEFTIMEOUT:
+ ret_val = get_default_timeout(info, argp);
+ break;
+ case CYSETDEFTIMEOUT:
+ ret_val = set_default_timeout(info, (unsigned long)arg);
+ break;
+ case TCSBRK: /* SVID version: non-zero arg --> no break */
+ ret_val = tty_check_change(tty);
+ if (ret_val)
+ break;
+ tty_wait_until_sent(tty, 0);
+ if (!arg)
+ send_break(info, HZ / 4); /* 1/4 second */
+ break;
+ case TCSBRKP: /* support for POSIX tcsendbreak() */
+ ret_val = tty_check_change(tty);
+ if (ret_val)
+ break;
+ tty_wait_until_sent(tty, 0);
+ send_break(info, arg ? arg * (HZ / 10) : HZ / 4);
break;
- tty_wait_until_sent(tty,0);
- send_break(info, arg ? arg*(HZ/10) : HZ/4);
- break;
/* The following commands are incompletely implemented!!! */
- case TIOCGSOFTCAR:
- ret_val = put_user(C_CLOCAL(tty) ? 1 : 0, (unsigned long *) arg);
- break;
- case TIOCSSOFTCAR:
- ret_val = get_user(val, (unsigned long *) arg);
- if (ret_val)
- break;
- tty->termios->c_cflag =
- ((tty->termios->c_cflag & ~CLOCAL) | (val ? CLOCAL : 0));
- break;
- case TIOCGSERIAL:
- ret_val = get_serial_info(info, (struct serial_struct *) arg);
- break;
- case TIOCSSERIAL:
- ret_val = set_serial_info(info,
- (struct serial_struct *) arg);
- break;
- default:
- ret_val = -ENOIOCTLCMD;
- }
+ case TIOCGSOFTCAR:
+ ret_val =
+ put_user(C_CLOCAL(tty) ? 1 : 0,
+ (unsigned long __user *)argp);
+ break;
+ case TIOCSSOFTCAR:
+ ret_val = get_user(val, (unsigned long __user *)argp);
+ if (ret_val)
+ break;
+ tty->termios->c_cflag =
+ ((tty->termios->c_cflag & ~CLOCAL) | (val ? CLOCAL : 0));
+ break;
+ case TIOCGSERIAL:
+ ret_val = get_serial_info(info, argp);
+ break;
+ case TIOCSSERIAL:
+ ret_val = set_serial_info(info, argp);
+ break;
+ default:
+ ret_val = -ENOIOCTLCMD;
+ }
#ifdef SERIAL_DEBUG_OTHER
- printk("cy_ioctl done\n");
+ printk("cy_ioctl done\n");
#endif
- return ret_val;
-} /* cy_ioctl */
-
-
+ return ret_val;
+} /* cy_ioctl */
-
-static void
-cy_set_termios(struct tty_struct *tty, struct termios * old_termios)
+static void cy_set_termios(struct tty_struct *tty, struct ktermios *old_termios)
{
- struct cyclades_port *info = (struct cyclades_port *)tty->driver_data;
+ struct cyclades_port *info = (struct cyclades_port *)tty->driver_data;
#ifdef SERIAL_DEBUG_OTHER
- printk("cy_set_termios %s\n", tty->name);
+ printk("cy_set_termios %s\n", tty->name);
#endif
- if (tty->termios->c_cflag == old_termios->c_cflag)
- return;
- config_setup(info);
+ if (tty->termios->c_cflag == old_termios->c_cflag)
+ return;
+ config_setup(info);
- if ((old_termios->c_cflag & CRTSCTS) &&
- !(tty->termios->c_cflag & CRTSCTS)) {
- tty->stopped = 0;
- cy_start(tty);
- }
+ if ((old_termios->c_cflag & CRTSCTS) &&
+ !(tty->termios->c_cflag & CRTSCTS)) {
+ tty->stopped = 0;
+ cy_start(tty);
+ }
#ifdef tytso_patch_94Nov25_1726
- if (!(old_termios->c_cflag & CLOCAL) &&
- (tty->termios->c_cflag & CLOCAL))
- wake_up_interruptible(&info->open_wait);
+ if (!(old_termios->c_cflag & CLOCAL) &&
+ (tty->termios->c_cflag & CLOCAL))
+ wake_up_interruptible(&info->open_wait);
#endif
+} /* cy_set_termios */
- return;
-} /* cy_set_termios */
-
-
-static void
-cy_close(struct tty_struct * tty, struct file * filp)
+static void cy_close(struct tty_struct *tty, struct file *filp)
{
- struct cyclades_port * info = (struct cyclades_port *)tty->driver_data;
+ struct cyclades_port *info = (struct cyclades_port *)tty->driver_data;
/* CP('C'); */
#ifdef SERIAL_DEBUG_OTHER
- printk("cy_close %s\n", tty->name);
+ printk("cy_close %s\n", tty->name);
#endif
- if (!info
- || serial_paranoia_check(info, tty->name, "cy_close")){
- return;
- }
+ if (!info || serial_paranoia_check(info, tty->name, "cy_close")) {
+ return;
+ }
#ifdef SERIAL_DEBUG_OPEN
- printk("cy_close %s, count = %d\n", tty->name, info->count);
-#endif
-
- if ((tty->count == 1) && (info->count != 1)) {
- /*
- * Uh, oh. tty->count is 1, which means that the tty
- * structure will be freed. Info->count should always
- * be one in these conditions. If it's greater than
- * one, we've got real problems, since it means the
- * serial port won't be shutdown.
- */
- printk("cy_close: bad serial port count; tty->count is 1, "
- "info->count is %d\n", info->count);
- info->count = 1;
- }
+ printk("cy_close %s, count = %d\n", tty->name, info->count);
+#endif
+
+ if ((tty->count == 1) && (info->count != 1)) {
+ /*
+ * Uh, oh. tty->count is 1, which means that the tty
+ * structure will be freed. Info->count should always
+ * be one in these conditions. If it's greater than
+ * one, we've got real problems, since it means the
+ * serial port won't be shutdown.
+ */
+ printk("cy_close: bad serial port count; tty->count is 1, "
+ "info->count is %d\n", info->count);
+ info->count = 1;
+ }
#ifdef SERIAL_DEBUG_COUNT
- printk("cyc: %d: decrementing count to %d\n", __LINE__, info->count - 1);
+ printk("cyc: %d: decrementing count to %d\n", __LINE__,
+ info->count - 1);
#endif
- if (--info->count < 0) {
- printk("cy_close: bad serial port count for ttys%d: %d\n",
- info->line, info->count);
+ if (--info->count < 0) {
+ printk("cy_close: bad serial port count for ttys%d: %d\n",
+ info->line, info->count);
#ifdef SERIAL_DEBUG_COUNT
- printk("cyc: %d: setting count to 0\n", __LINE__);
+ printk("cyc: %d: setting count to 0\n", __LINE__);
#endif
- info->count = 0;
- }
- if (info->count)
- return;
- info->flags |= ASYNC_CLOSING;
- if (info->flags & ASYNC_INITIALIZED)
- tty_wait_until_sent(tty, 3000); /* 30 seconds timeout */
- shutdown(info);
- if (tty->driver->flush_buffer)
- tty->driver->flush_buffer(tty);
- tty_ldisc_flush(tty);
- info->event = 0;
- info->tty = 0;
- if (info->blocked_open) {
- if (info->close_delay) {
- msleep_interruptible(jiffies_to_msecs(info->close_delay));
+ info->count = 0;
}
- wake_up_interruptible(&info->open_wait);
- }
- info->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
- wake_up_interruptible(&info->close_wait);
+ if (info->count)
+ return;
+ info->flags |= ASYNC_CLOSING;
+ if (info->flags & ASYNC_INITIALIZED)
+ tty_wait_until_sent(tty, 3000); /* 30 seconds timeout */
+ shutdown(info);
+ if (tty->driver->flush_buffer)
+ tty->driver->flush_buffer(tty);
+ tty_ldisc_flush(tty);
+ info->event = 0;
+ info->tty = NULL;
+ if (info->blocked_open) {
+ if (info->close_delay) {
+ msleep_interruptible(jiffies_to_msecs
+ (info->close_delay));
+ }
+ wake_up_interruptible(&info->open_wait);
+ }
+ info->flags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_CLOSING);
+ wake_up_interruptible(&info->close_wait);
#ifdef SERIAL_DEBUG_OTHER
- printk("cy_close done\n");
+ printk("cy_close done\n");
#endif
-
- return;
-} /* cy_close */
+} /* cy_close */
/*
* cy_hangup() --- called by tty_hangup() when a hangup is signaled.
*/
-void
-cy_hangup(struct tty_struct *tty)
+void cy_hangup(struct tty_struct *tty)
{
- struct cyclades_port * info = (struct cyclades_port *)tty->driver_data;
-
+ struct cyclades_port *info = (struct cyclades_port *)tty->driver_data;
+
#ifdef SERIAL_DEBUG_OTHER
- printk("cy_hangup %s\n", tty->name); /* */
+ printk("cy_hangup %s\n", tty->name); /* */
#endif
- if (serial_paranoia_check(info, tty->name, "cy_hangup"))
- return;
-
- shutdown(info);
+ if (serial_paranoia_check(info, tty->name, "cy_hangup"))
+ return;
+
+ shutdown(info);
#if 0
- info->event = 0;
- info->count = 0;
+ info->event = 0;
+ info->count = 0;
#ifdef SERIAL_DEBUG_COUNT
- printk("cyc: %d: setting count to 0\n", __LINE__);
+ printk("cyc: %d: setting count to 0\n", __LINE__);
#endif
- info->tty = 0;
+ info->tty = 0;
#endif
- info->flags &= ~ASYNC_NORMAL_ACTIVE;
- wake_up_interruptible(&info->open_wait);
-} /* cy_hangup */
-
-
+ info->flags &= ~ASYNC_NORMAL_ACTIVE;
+ wake_up_interruptible(&info->open_wait);
+} /* cy_hangup */
/*
* ------------------------------------------------------------
*/
static int
-block_til_ready(struct tty_struct *tty, struct file * filp,
- struct cyclades_port *info)
+block_til_ready(struct tty_struct *tty, struct file *filp,
+ struct cyclades_port *info)
{
- DECLARE_WAITQUEUE(wait, current);
- unsigned long flags;
- int channel;
- int retval;
- volatile u_char *base_addr = (u_char *)BASE_ADDR;
-
- /*
- * If the device is in the middle of being closed, then block
- * until it's done, and then try again.
- */
- if (info->flags & ASYNC_CLOSING) {
- interruptible_sleep_on(&info->close_wait);
- if (info->flags & ASYNC_HUP_NOTIFY){
- return -EAGAIN;
- }else{
- return -ERESTARTSYS;
- }
- }
-
- /*
- * If non-blocking mode is set, then make the check up front
- * and then exit.
- */
- if (filp->f_flags & O_NONBLOCK) {
- info->flags |= ASYNC_NORMAL_ACTIVE;
- return 0;
- }
-
- /*
- * Block waiting for the carrier detect and the line to become
- * free (i.e., not in use by the callout). While we are in
- * this loop, info->count is dropped by one, so that
- * cy_close() knows when to free things. We restore it upon
- * exit, either normal or abnormal.
- */
- retval = 0;
- add_wait_queue(&info->open_wait, &wait);
+ DECLARE_WAITQUEUE(wait, current);
+ unsigned long flags;
+ int channel;
+ int retval;
+ volatile u_char *base_addr = (u_char *) BASE_ADDR;
+
+ /*
+ * If the device is in the middle of being closed, then block
+ * until it's done, and then try again.
+ */
+ if (info->flags & ASYNC_CLOSING) {
+ interruptible_sleep_on(&info->close_wait);
+ if (info->flags & ASYNC_HUP_NOTIFY) {
+ return -EAGAIN;
+ } else {
+ return -ERESTARTSYS;
+ }
+ }
+
+ /*
+ * If non-blocking mode is set, then make the check up front
+ * and then exit.
+ */
+ if (filp->f_flags & O_NONBLOCK) {
+ info->flags |= ASYNC_NORMAL_ACTIVE;
+ return 0;
+ }
+
+ /*
+ * Block waiting for the carrier detect and the line to become
+ * free (i.e., not in use by the callout). While we are in
+ * this loop, info->count is dropped by one, so that
+ * cy_close() knows when to free things. We restore it upon
+ * exit, either normal or abnormal.
+ */
+ retval = 0;
+ add_wait_queue(&info->open_wait, &wait);
#ifdef SERIAL_DEBUG_OPEN
- printk("block_til_ready before block: %s, count = %d\n",
- tty->name, info->count);/**/
+ printk("block_til_ready before block: %s, count = %d\n",
+ tty->name, info->count);
+ /**/
#endif
- info->count--;
+ info->count--;
#ifdef SERIAL_DEBUG_COUNT
- printk("cyc: %d: decrementing count to %d\n", __LINE__, info->count);
+ printk("cyc: %d: decrementing count to %d\n", __LINE__, info->count);
#endif
- info->blocked_open++;
+ info->blocked_open++;
- channel = info->line;
+ channel = info->line;
- while (1) {
- local_irq_save(flags);
- base_addr[CyCAR] = (u_char)channel;
- base_addr[CyMSVR1] = CyRTS;
+ while (1) {
+ local_irq_save(flags);
+ base_addr[CyCAR] = (u_char) channel;
+ base_addr[CyMSVR1] = CyRTS;
/* CP('S');CP('4'); */
- base_addr[CyMSVR2] = CyDTR;
+ base_addr[CyMSVR2] = CyDTR;
#ifdef SERIAL_DEBUG_DTR
- printk("cyc: %d: raising DTR\n", __LINE__);
- printk(" status: 0x%x, 0x%x\n", base_addr[CyMSVR1], base_addr[CyMSVR2]);
-#endif
- local_irq_restore(flags);
- set_current_state(TASK_INTERRUPTIBLE);
- if (tty_hung_up_p(filp)
- || !(info->flags & ASYNC_INITIALIZED) ){
- if (info->flags & ASYNC_HUP_NOTIFY) {
- retval = -EAGAIN;
- }else{
- retval = -ERESTARTSYS;
- }
- break;
- }
- local_irq_save(flags);
- base_addr[CyCAR] = (u_char)channel;
+ printk("cyc: %d: raising DTR\n", __LINE__);
+ printk(" status: 0x%x, 0x%x\n", base_addr[CyMSVR1],
+ base_addr[CyMSVR2]);
+#endif
+ local_irq_restore(flags);
+ set_current_state(TASK_INTERRUPTIBLE);
+ if (tty_hung_up_p(filp)
+ || !(info->flags & ASYNC_INITIALIZED)) {
+ if (info->flags & ASYNC_HUP_NOTIFY) {
+ retval = -EAGAIN;
+ } else {
+ retval = -ERESTARTSYS;
+ }
+ break;
+ }
+ local_irq_save(flags);
+ base_addr[CyCAR] = (u_char) channel;
/* CP('L');CP1(1 && C_CLOCAL(tty)); CP1(1 && (base_addr[CyMSVR1] & CyDCD) ); */
- if (!(info->flags & ASYNC_CLOSING)
- && (C_CLOCAL(tty)
- || (base_addr[CyMSVR1] & CyDCD))) {
- local_irq_restore(flags);
- break;
- }
- local_irq_restore(flags);
- if (signal_pending(current)) {
- retval = -ERESTARTSYS;
- break;
- }
+ if (!(info->flags & ASYNC_CLOSING)
+ && (C_CLOCAL(tty)
+ || (base_addr[CyMSVR1] & CyDCD))) {
+ local_irq_restore(flags);
+ break;
+ }
+ local_irq_restore(flags);
+ if (signal_pending(current)) {
+ retval = -ERESTARTSYS;
+ break;
+ }
#ifdef SERIAL_DEBUG_OPEN
- printk("block_til_ready blocking: %s, count = %d\n",
- tty->name, info->count);/**/
-#endif
- schedule();
- }
- current->state = TASK_RUNNING;
- remove_wait_queue(&info->open_wait, &wait);
- if (!tty_hung_up_p(filp)){
- info->count++;
+ printk("block_til_ready blocking: %s, count = %d\n",
+ tty->name, info->count);
+ /**/
+#endif
+ schedule();
+ }
+ current->state = TASK_RUNNING;
+ remove_wait_queue(&info->open_wait, &wait);
+ if (!tty_hung_up_p(filp)) {
+ info->count++;
#ifdef SERIAL_DEBUG_COUNT
- printk("cyc: %d: incrementing count to %d\n", __LINE__, info->count);
+ printk("cyc: %d: incrementing count to %d\n", __LINE__,
+ info->count);
#endif
- }
- info->blocked_open--;
+ }
+ info->blocked_open--;
#ifdef SERIAL_DEBUG_OPEN
- printk("block_til_ready after blocking: %s, count = %d\n",
- tty->name, info->count);/**/
+ printk("block_til_ready after blocking: %s, count = %d\n",
+ tty->name, info->count);
+ /**/
#endif
- if (retval)
- return retval;
- info->flags |= ASYNC_NORMAL_ACTIVE;
- return 0;
-} /* block_til_ready */
+ if (retval)
+ return retval;
+ info->flags |= ASYNC_NORMAL_ACTIVE;
+ return 0;
+} /* block_til_ready */
/*
* This routine is called whenever a serial port is opened. It
* performs the serial-specific initialization for the tty structure.
*/
-int
-cy_open(struct tty_struct *tty, struct file * filp)
+int cy_open(struct tty_struct *tty, struct file *filp)
{
- struct cyclades_port *info;
- int retval, line;
+ struct cyclades_port *info;
+ int retval, line;
/* CP('O'); */
- line = tty->index;
- if ((line < 0) || (NR_PORTS <= line)){
- return -ENODEV;
- }
- info = &cy_port[line];
- if (info->line < 0){
- return -ENODEV;
- }
+ line = tty->index;
+ if ((line < 0) || (NR_PORTS <= line)) {
+ return -ENODEV;
+ }
+ info = &cy_port[line];
+ if (info->line < 0) {
+ return -ENODEV;
+ }
#ifdef SERIAL_DEBUG_OTHER
- printk("cy_open %s\n", tty->name); /* */
+ printk("cy_open %s\n", tty->name); /* */
#endif
- if (serial_paranoia_check(info, tty->name, "cy_open")){
- return -ENODEV;
- }
+ if (serial_paranoia_check(info, tty->name, "cy_open")) {
+ return -ENODEV;
+ }
#ifdef SERIAL_DEBUG_OPEN
- printk("cy_open %s, count = %d\n", tty->name, info->count);/**/
+ printk("cy_open %s, count = %d\n", tty->name, info->count);
+ /**/
#endif
- info->count++;
+ info->count++;
#ifdef SERIAL_DEBUG_COUNT
- printk("cyc: %d: incrementing count to %d\n", __LINE__, info->count);
-#endif
- tty->driver_data = info;
- info->tty = tty;
-
- if (!tmp_buf) {
- tmp_buf = (unsigned char *) get_zeroed_page(GFP_KERNEL);
- if (!tmp_buf){
- return -ENOMEM;
- }
- }
-
- /*
- * Start up serial port
- */
- retval = startup(info);
- if (retval){
- return retval;
- }
-
- retval = block_til_ready(tty, filp, info);
- if (retval) {
-#ifdef SERIAL_DEBUG_OPEN
- printk("cy_open returning after block_til_ready with %d\n",
- retval);
+ printk("cyc: %d: incrementing count to %d\n", __LINE__, info->count);
#endif
- return retval;
- }
+ tty->driver_data = info;
+ info->tty = tty;
+
+ /*
+ * Start up serial port
+ */
+ retval = startup(info);
+ if (retval) {
+ return retval;
+ }
+ retval = block_til_ready(tty, filp, info);
+ if (retval) {
#ifdef SERIAL_DEBUG_OPEN
- printk("cy_open done\n");/**/
+ printk("cy_open returning after block_til_ready with %d\n",
+ retval);
#endif
- return 0;
-} /* cy_open */
-
-
+ return retval;
+ }
+#ifdef SERIAL_DEBUG_OPEN
+ printk("cy_open done\n");
+ /**/
+#endif
+ return 0;
+} /* cy_open */
/*
* ---------------------------------------------------------------------
* number, and identifies which options were configured into this
* driver.
*/
-static void
-show_version(void)
+static void show_version(void)
{
- printk("MVME166/167 cd2401 driver\n");
-} /* show_version */
+ printk("MVME166/167 cd2401 driver\n");
+} /* show_version */
/* initialize chips on card -- return number of valid
chips (which is number of ports/4) */
* ... I wonder what I should do if this fails ...
*/
-void
-mvme167_serial_console_setup(int cflag)
+void mvme167_serial_console_setup(int cflag)
{
- volatile unsigned char* base_addr = (u_char *)BASE_ADDR;
+ volatile unsigned char *base_addr = (u_char *) BASE_ADDR;
int ch;
u_char spd;
u_char rcor, rbpr, badspeed = 0;
/* OK, we have chosen a speed, now reset and reinitialise */
- my_udelay(20000L); /* Allow time for any active o/p to complete */
- if(base_addr[CyCCR] != 0x00){
- local_irq_restore(flags);
- /* printk(" chip is never idle (CCR != 0)\n"); */
- return;
- }
+ my_udelay(20000L); /* Allow time for any active o/p to complete */
+ if (base_addr[CyCCR] != 0x00) {
+ local_irq_restore(flags);
+ /* printk(" chip is never idle (CCR != 0)\n"); */
+ return;
+ }
- base_addr[CyCCR] = CyCHIP_RESET; /* Reset the chip */
- my_udelay(1000L);
+ base_addr[CyCCR] = CyCHIP_RESET; /* Reset the chip */
+ my_udelay(1000L);
- if(base_addr[CyGFRCR] == 0x00){
- local_irq_restore(flags);
- /* printk(" chip is not responding (GFRCR stayed 0)\n"); */
- return;
- }
+ if (base_addr[CyGFRCR] == 0x00) {
+ local_irq_restore(flags);
+ /* printk(" chip is not responding (GFRCR stayed 0)\n"); */
+ return;
+ }
/*
* System clock is 20Mhz, divided by 2048, so divide by 10 for a 1.0ms
base_addr[CyTPR] = 10;
- base_addr[CyPILR1] = 0x01; /* Interrupt level for modem change */
- base_addr[CyPILR2] = 0x02; /* Interrupt level for tx ints */
- base_addr[CyPILR3] = 0x03; /* Interrupt level for rx ints */
+ base_addr[CyPILR1] = 0x01; /* Interrupt level for modem change */
+ base_addr[CyPILR2] = 0x02; /* Interrupt level for tx ints */
+ base_addr[CyPILR3] = 0x03; /* Interrupt level for rx ints */
/*
* Attempt to set up all channels to something reasonable, and
* the ammount of fiddling we have to do in normal running.
*/
- for (ch = 3; ch >= 0 ; ch--) {
- base_addr[CyCAR] = (u_char)ch;
+ for (ch = 3; ch >= 0; ch--) {
+ base_addr[CyCAR] = (u_char) ch;
base_addr[CyIER] = 0;
base_addr[CyCMR] = CyASYNC;
- base_addr[CyLICR] = (u_char)ch << 2;
+ base_addr[CyLICR] = (u_char) ch << 2;
base_addr[CyLIVR] = 0x5c;
base_addr[CyTCOR] = baud_co[spd];
base_addr[CyTBPR] = baud_bpr[spd];
base_addr[CyCOR7] = 0;
base_addr[CyRTPRL] = 2;
base_addr[CyRTPRH] = 0;
- base_addr[CyMSVR1] = 0;
- base_addr[CyMSVR2] = 0;
- write_cy_cmd(base_addr,CyINIT_CHAN|CyDIS_RCVR|CyDIS_XMTR);
+ base_addr[CyMSVR1] = 0;
+ base_addr[CyMSVR2] = 0;
+ write_cy_cmd(base_addr, CyINIT_CHAN | CyDIS_RCVR | CyDIS_XMTR);
}
/*
* Now do specials for channel zero....
*/
- base_addr[CyMSVR1] = CyRTS;
- base_addr[CyMSVR2] = CyDTR;
+ base_addr[CyMSVR1] = CyRTS;
+ base_addr[CyMSVR2] = CyDTR;
base_addr[CyIER] = CyRxData;
- write_cy_cmd(base_addr,CyENB_RCVR|CyENB_XMTR);
+ write_cy_cmd(base_addr, CyENB_RCVR | CyENB_XMTR);
local_irq_restore(flags);
my_udelay(20000L); /* Let it all settle down */
- printk("CD2401 initialised, chip is rev 0x%02x\n", base_addr[CyGFRCR]);
+ printk("CD2401 initialised, chip is rev 0x%02x\n", base_addr[CyGFRCR]);
if (badspeed)
- printk(" WARNING: Failed to identify line speed, rcor=%02x,rbpr=%02x\n",
- rcor >> 5, rbpr);
-} /* serial_console_init */
+ printk
+ (" WARNING: Failed to identify line speed, rcor=%02x,rbpr=%02x\n",
+ rcor >> 5, rbpr);
+} /* serial_console_init */
-static struct tty_operations cy_ops = {
+static const struct tty_operations cy_ops = {
.open = cy_open,
.close = cy_close,
.write = cy_write,
.tiocmget = cy_tiocmget,
.tiocmset = cy_tiocmset,
};
+
/* The serial driver boot-time initialization code!
Hardware I/O ports are mapped to character special devices on a
first found, first allocated manner. That is, this code searches
If there are more cards with more ports than have been statically
allocated above, a warning is printed and the extra ports are ignored.
*/
-static int __init
-serial167_init(void)
+static int __init serial167_init(void)
{
- struct cyclades_port *info;
- int ret = 0;
- int good_ports = 0;
- int port_num = 0;
- int index;
- int DefSpeed;
+ struct cyclades_port *info;
+ int ret = 0;
+ int good_ports = 0;
+ int port_num = 0;
+ int index;
+ int DefSpeed;
#ifdef notyet
- struct sigaction sa;
+ struct sigaction sa;
#endif
- if (!(mvme16x_config &MVME16x_CONFIG_GOT_CD2401))
- return 0;
+ if (!(mvme16x_config & MVME16x_CONFIG_GOT_CD2401))
+ return 0;
- cy_serial_driver = alloc_tty_driver(NR_PORTS);
- if (!cy_serial_driver)
- return -ENOMEM;
+ cy_serial_driver = alloc_tty_driver(NR_PORTS);
+ if (!cy_serial_driver)
+ return -ENOMEM;
#if 0
-scrn[1] = '\0';
+ scrn[1] = '\0';
#endif
- show_version();
+ show_version();
- /* Has "console=0,9600n8" been used in bootinfo to change speed? */
- if (serial_console_cflag)
- DefSpeed = serial_console_cflag & 0017;
- else {
- DefSpeed = initial_console_speed;
- serial_console_info = &cy_port[0];
- serial_console_cflag = DefSpeed | CS8;
+ /* Has "console=0,9600n8" been used in bootinfo to change speed? */
+ if (serial_console_cflag)
+ DefSpeed = serial_console_cflag & 0017;
+ else {
+ DefSpeed = initial_console_speed;
+ serial_console_info = &cy_port[0];
+ serial_console_cflag = DefSpeed | CS8;
#if 0
- serial_console = 64; /*callout_driver.minor_start*/
-#endif
- }
-
- /* Initialize the tty_driver structure */
-
- cy_serial_driver->owner = THIS_MODULE;
- cy_serial_driver->name = "ttyS";
- cy_serial_driver->major = TTY_MAJOR;
- cy_serial_driver->minor_start = 64;
- cy_serial_driver->type = TTY_DRIVER_TYPE_SERIAL;
- cy_serial_driver->subtype = SERIAL_TYPE_NORMAL;
- cy_serial_driver->init_termios = tty_std_termios;
- cy_serial_driver->init_termios.c_cflag =
- B9600 | CS8 | CREAD | HUPCL | CLOCAL;
- cy_serial_driver->flags = TTY_DRIVER_REAL_RAW;
- tty_set_operations(cy_serial_driver, &cy_ops);
+ serial_console = 64; /*callout_driver.minor_start */
+#endif
+ }
- ret = tty_register_driver(cy_serial_driver);
- if (ret) {
- printk(KERN_ERR "Couldn't register MVME166/7 serial driver\n");
- put_tty_driver(cy_serial_driver);
- return ret;
- }
+ /* Initialize the tty_driver structure */
- port_num = 0;
- info = cy_port;
- for (index = 0; index < 1; index++) {
+ cy_serial_driver->owner = THIS_MODULE;
+ cy_serial_driver->name = "ttyS";
+ cy_serial_driver->major = TTY_MAJOR;
+ cy_serial_driver->minor_start = 64;
+ cy_serial_driver->type = TTY_DRIVER_TYPE_SERIAL;
+ cy_serial_driver->subtype = SERIAL_TYPE_NORMAL;
+ cy_serial_driver->init_termios = tty_std_termios;
+ cy_serial_driver->init_termios.c_cflag =
+ B9600 | CS8 | CREAD | HUPCL | CLOCAL;
+ cy_serial_driver->flags = TTY_DRIVER_REAL_RAW;
+ tty_set_operations(cy_serial_driver, &cy_ops);
+
+ ret = tty_register_driver(cy_serial_driver);
+ if (ret) {
+ printk(KERN_ERR "Couldn't register MVME166/7 serial driver\n");
+ put_tty_driver(cy_serial_driver);
+ return ret;
+ }
- good_ports = 4;
+ port_num = 0;
+ info = cy_port;
+ for (index = 0; index < 1; index++) {
- if(port_num < NR_PORTS){
- while( good_ports-- && port_num < NR_PORTS){
+ good_ports = 4;
+
+ if (port_num < NR_PORTS) {
+ while (good_ports-- && port_num < NR_PORTS) {
/*** initialize port ***/
- info->magic = CYCLADES_MAGIC;
- info->type = PORT_CIRRUS;
- info->card = index;
- info->line = port_num;
- info->flags = STD_COM_FLAGS;
- info->tty = 0;
- info->xmit_fifo_size = 12;
- info->cor1 = CyPARITY_NONE|Cy_8_BITS;
- info->cor2 = CyETC;
- info->cor3 = Cy_1_STOP;
- info->cor4 = 0x08; /* _very_ small receive threshold */
- info->cor5 = 0;
- info->cor6 = 0;
- info->cor7 = 0;
- info->tbpr = baud_bpr[DefSpeed]; /* Tx BPR */
- info->tco = baud_co[DefSpeed]; /* Tx CO */
- info->rbpr = baud_bpr[DefSpeed]; /* Rx BPR */
- info->rco = baud_co[DefSpeed] >> 5; /* Rx CO */
- info->close_delay = 0;
- info->x_char = 0;
- info->event = 0;
- info->count = 0;
+ info->magic = CYCLADES_MAGIC;
+ info->type = PORT_CIRRUS;
+ info->card = index;
+ info->line = port_num;
+ info->flags = STD_COM_FLAGS;
+ info->tty = NULL;
+ info->xmit_fifo_size = 12;
+ info->cor1 = CyPARITY_NONE | Cy_8_BITS;
+ info->cor2 = CyETC;
+ info->cor3 = Cy_1_STOP;
+ info->cor4 = 0x08; /* _very_ small receive threshold */
+ info->cor5 = 0;
+ info->cor6 = 0;
+ info->cor7 = 0;
+ info->tbpr = baud_bpr[DefSpeed]; /* Tx BPR */
+ info->tco = baud_co[DefSpeed]; /* Tx CO */
+ info->rbpr = baud_bpr[DefSpeed]; /* Rx BPR */
+ info->rco = baud_co[DefSpeed] >> 5; /* Rx CO */
+ info->close_delay = 0;
+ info->x_char = 0;
+ info->event = 0;
+ info->count = 0;
#ifdef SERIAL_DEBUG_COUNT
- printk("cyc: %d: setting count to 0\n", __LINE__);
-#endif
- info->blocked_open = 0;
- info->default_threshold = 0;
- info->default_timeout = 0;
- INIT_WORK(&info->tqueue, do_softint, info);
- init_waitqueue_head(&info->open_wait);
- init_waitqueue_head(&info->close_wait);
- /* info->session */
- /* info->pgrp */
+ printk("cyc: %d: setting count to 0\n",
+ __LINE__);
+#endif
+ info->blocked_open = 0;
+ info->default_threshold = 0;
+ info->default_timeout = 0;
+ INIT_WORK(&info->tqueue, do_softint);
+ init_waitqueue_head(&info->open_wait);
+ init_waitqueue_head(&info->close_wait);
+ /* info->session */
+ /* info->pgrp */
/*** !!!!!!!! this may expose new bugs !!!!!!!!! *********/
- info->read_status_mask = CyTIMEOUT| CySPECHAR| CyBREAK
- | CyPARITY| CyFRAME| CyOVERRUN;
- /* info->timeout */
-
- printk("ttyS%d ", info->line);
- port_num++;info++;
- if(!(port_num & 7)){
- printk("\n ");
+ info->read_status_mask =
+ CyTIMEOUT | CySPECHAR | CyBREAK | CyPARITY |
+ CyFRAME | CyOVERRUN;
+ /* info->timeout */
+
+ printk("ttyS%d ", info->line);
+ port_num++;
+ info++;
+ if (!(port_num & 7)) {
+ printk("\n ");
+ }
+ }
}
- }
- }
- printk("\n");
- }
- while( port_num < NR_PORTS){
- info->line = -1;
- port_num++;info++;
- }
+ printk("\n");
+ }
+ while (port_num < NR_PORTS) {
+ info->line = -1;
+ port_num++;
+ info++;
+ }
#ifdef CONFIG_REMOTE_DEBUG
- debug_setup();
-#endif
- ret = request_irq(MVME167_IRQ_SER_ERR, cd2401_rxerr_interrupt, 0,
- "cd2401_errors", cd2401_rxerr_interrupt);
- if (ret) {
- printk(KERN_ERR "Could't get cd2401_errors IRQ");
- goto cleanup_serial_driver;
- }
-
- ret = request_irq(MVME167_IRQ_SER_MODEM, cd2401_modem_interrupt, 0,
- "cd2401_modem", cd2401_modem_interrupt);
- if (ret) {
- printk(KERN_ERR "Could't get cd2401_modem IRQ");
- goto cleanup_irq_cd2401_errors;
- }
-
- ret = request_irq(MVME167_IRQ_SER_TX, cd2401_tx_interrupt, 0,
- "cd2401_txints", cd2401_tx_interrupt);
- if (ret) {
- printk(KERN_ERR "Could't get cd2401_txints IRQ");
- goto cleanup_irq_cd2401_modem;
- }
-
- ret = request_irq(MVME167_IRQ_SER_RX, cd2401_rx_interrupt, 0,
- "cd2401_rxints", cd2401_rx_interrupt);
- if (ret) {
- printk(KERN_ERR "Could't get cd2401_rxints IRQ");
- goto cleanup_irq_cd2401_txints;
- }
-
- /* Now we have registered the interrupt handlers, allow the interrupts */
-
- pcc2chip[PccSCCMICR] = 0x15; /* Serial ints are level 5 */
- pcc2chip[PccSCCTICR] = 0x15;
- pcc2chip[PccSCCRICR] = 0x15;
-
- pcc2chip[PccIMLR] = 3; /* Allow PCC2 ints above 3!? */
-
- return 0;
+ debug_setup();
+#endif
+ ret = request_irq(MVME167_IRQ_SER_ERR, cd2401_rxerr_interrupt, 0,
+ "cd2401_errors", cd2401_rxerr_interrupt);
+ if (ret) {
+ printk(KERN_ERR "Could't get cd2401_errors IRQ");
+ goto cleanup_serial_driver;
+ }
+
+ ret = request_irq(MVME167_IRQ_SER_MODEM, cd2401_modem_interrupt, 0,
+ "cd2401_modem", cd2401_modem_interrupt);
+ if (ret) {
+ printk(KERN_ERR "Could't get cd2401_modem IRQ");
+ goto cleanup_irq_cd2401_errors;
+ }
+
+ ret = request_irq(MVME167_IRQ_SER_TX, cd2401_tx_interrupt, 0,
+ "cd2401_txints", cd2401_tx_interrupt);
+ if (ret) {
+ printk(KERN_ERR "Could't get cd2401_txints IRQ");
+ goto cleanup_irq_cd2401_modem;
+ }
+
+ ret = request_irq(MVME167_IRQ_SER_RX, cd2401_rx_interrupt, 0,
+ "cd2401_rxints", cd2401_rx_interrupt);
+ if (ret) {
+ printk(KERN_ERR "Could't get cd2401_rxints IRQ");
+ goto cleanup_irq_cd2401_txints;
+ }
+
+ /* Now we have registered the interrupt handlers, allow the interrupts */
+
+ pcc2chip[PccSCCMICR] = 0x15; /* Serial ints are level 5 */
+ pcc2chip[PccSCCTICR] = 0x15;
+ pcc2chip[PccSCCRICR] = 0x15;
+
+ pcc2chip[PccIMLR] = 3; /* Allow PCC2 ints above 3!? */
+
+ return 0;
cleanup_irq_cd2401_txints:
- free_irq(MVME167_IRQ_SER_TX, cd2401_tx_interrupt);
+ free_irq(MVME167_IRQ_SER_TX, cd2401_tx_interrupt);
cleanup_irq_cd2401_modem:
- free_irq(MVME167_IRQ_SER_MODEM, cd2401_modem_interrupt);
+ free_irq(MVME167_IRQ_SER_MODEM, cd2401_modem_interrupt);
cleanup_irq_cd2401_errors:
- free_irq(MVME167_IRQ_SER_ERR, cd2401_rxerr_interrupt);
+ free_irq(MVME167_IRQ_SER_ERR, cd2401_rxerr_interrupt);
cleanup_serial_driver:
- if (tty_unregister_driver(cy_serial_driver))
- printk(KERN_ERR "Couldn't unregister MVME166/7 serial driver\n");
- put_tty_driver(cy_serial_driver);
- return ret;
-} /* serial167_init */
+ if (tty_unregister_driver(cy_serial_driver))
+ printk(KERN_ERR
+ "Couldn't unregister MVME166/7 serial driver\n");
+ put_tty_driver(cy_serial_driver);
+ return ret;
+} /* serial167_init */
module_init(serial167_init);
-
#ifdef CYCLOM_SHOW_STATUS
-static void
-show_status(int line_num)
+static void show_status(int line_num)
{
- volatile unsigned char *base_addr = (u_char *)BASE_ADDR;
- int channel;
- struct cyclades_port * info;
- unsigned long flags;
-
- info = &cy_port[line_num];
- channel = info->line;
- printk(" channel %d\n", channel);/**/
-
- printk(" cy_port\n");
- printk(" card line flags = %d %d %x\n",
- info->card, info->line, info->flags);
- printk(" *tty read_status_mask timeout xmit_fifo_size = %lx %x %x %x\n",
- (long)info->tty, info->read_status_mask,
- info->timeout, info->xmit_fifo_size);
- printk(" cor1,cor2,cor3,cor4,cor5,cor6,cor7 = %x %x %x %x %x %x %x\n",
- info->cor1, info->cor2, info->cor3, info->cor4, info->cor5,
- info->cor6, info->cor7);
- printk(" tbpr,tco,rbpr,rco = %d %d %d %d\n",
- info->tbpr, info->tco, info->rbpr, info->rco);
- printk(" close_delay event count = %d %d %d\n",
- info->close_delay, info->event, info->count);
- printk(" x_char blocked_open = %x %x\n",
- info->x_char, info->blocked_open);
- printk(" open_wait = %lx %lx %lx\n",
- (long)info->open_wait);
-
-
- local_irq_save(flags);
+ volatile unsigned char *base_addr = (u_char *) BASE_ADDR;
+ int channel;
+ struct cyclades_port *info;
+ unsigned long flags;
+
+ info = &cy_port[line_num];
+ channel = info->line;
+ printk(" channel %d\n", channel);
+ /**/ printk(" cy_port\n");
+ printk(" card line flags = %d %d %x\n",
+ info->card, info->line, info->flags);
+ printk
+ (" *tty read_status_mask timeout xmit_fifo_size = %lx %x %x %x\n",
+ (long)info->tty, info->read_status_mask, info->timeout,
+ info->xmit_fifo_size);
+ printk(" cor1,cor2,cor3,cor4,cor5,cor6,cor7 = %x %x %x %x %x %x %x\n",
+ info->cor1, info->cor2, info->cor3, info->cor4, info->cor5,
+ info->cor6, info->cor7);
+ printk(" tbpr,tco,rbpr,rco = %d %d %d %d\n", info->tbpr, info->tco,
+ info->rbpr, info->rco);
+ printk(" close_delay event count = %d %d %d\n", info->close_delay,
+ info->event, info->count);
+ printk(" x_char blocked_open = %x %x\n", info->x_char,
+ info->blocked_open);
+ printk(" open_wait = %lx %lx %lx\n", (long)info->open_wait);
+
+ local_irq_save(flags);
/* Global Registers */
printk(" CyMIR %x\n", base_addr[CyMIR]);
printk(" CyTPR %x\n", base_addr[CyTPR]);
- base_addr[CyCAR] = (u_char)channel;
+ base_addr[CyCAR] = (u_char) channel;
/* Virtual Registers */
printk(" CyTBPR %x\n", base_addr[CyTBPR]);
printk(" CyTCOR %x\n", base_addr[CyTCOR]);
- local_irq_restore(flags);
-} /* show_status */
+ local_irq_restore(flags);
+} /* show_status */
#endif
-
#if 0
/* Dummy routine in mvme16x/config.c for now */
int cflag = 0;
/* Sanity check. */
- if (ints[0] > 3 || ints[1] > 3) return;
+ if (ints[0] > 3 || ints[1] > 3)
+ return;
/* Get baud, bits and parity */
baud = 2400;
bits = 8;
parity = 'n';
- if (ints[2]) baud = ints[2];
+ if (ints[2])
+ baud = ints[2];
if ((s = strchr(str, ','))) {
do {
s++;
- } while(*s >= '0' && *s <= '9');
- if (*s) parity = *s++;
- if (*s) bits = *s - '0';
+ } while (*s >= '0' && *s <= '9');
+ if (*s)
+ parity = *s++;
+ if (*s)
+ bits = *s - '0';
}
/* Now construct a cflag setting. */
- switch(baud) {
- case 1200:
- cflag |= B1200;
- break;
- case 9600:
- cflag |= B9600;
- break;
- case 19200:
- cflag |= B19200;
- break;
- case 38400:
- cflag |= B38400;
- break;
- case 2400:
- default:
- cflag |= B2400;
- break;
+ switch (baud) {
+ case 1200:
+ cflag |= B1200;
+ break;
+ case 9600:
+ cflag |= B9600;
+ break;
+ case 19200:
+ cflag |= B19200;
+ break;
+ case 38400:
+ cflag |= B38400;
+ break;
+ case 2400:
+ default:
+ cflag |= B2400;
+ break;
}
- switch(bits) {
- case 7:
- cflag |= CS7;
- break;
- default:
- case 8:
- cflag |= CS8;
- break;
+ switch (bits) {
+ case 7:
+ cflag |= CS7;
+ break;
+ default:
+ case 8:
+ cflag |= CS8;
+ break;
}
- switch(parity) {
- case 'o': case 'O':
- cflag |= PARODD;
- break;
- case 'e': case 'E':
- cflag |= PARENB;
- break;
+ switch (parity) {
+ case 'o':
+ case 'O':
+ cflag |= PARODD;
+ break;
+ case 'e':
+ case 'E':
+ cflag |= PARENB;
+ break;
}
serial_console_info = &cy_port[ints[1]];
serial_console_cflag = cflag;
- serial_console = ints[1] + 64; /*callout_driver.minor_start*/
+ serial_console = ints[1] + 64; /*callout_driver.minor_start */
}
#endif
* The console must be locked when we get here.
*/
-void serial167_console_write(struct console *co, const char *str, unsigned count)
+void serial167_console_write(struct console *co, const char *str,
+ unsigned count)
{
- volatile unsigned char *base_addr = (u_char *)BASE_ADDR;
+ volatile unsigned char *base_addr = (u_char *) BASE_ADDR;
unsigned long flags;
volatile u_char sink;
u_char ier;
/* Ensure transmitter is enabled! */
port = 0;
- base_addr[CyCAR] = (u_char)port;
+ base_addr[CyCAR] = (u_char) port;
while (base_addr[CyCCR])
;
base_addr[CyCCR] = CyENB_XMTR;
base_addr[CyIER] = CyTxMpty;
while (1) {
- if (pcc2chip[PccSCCTICR] & 0x20)
- {
+ if (pcc2chip[PccSCCTICR] & 0x20) {
/* We have a Tx int. Acknowledge it */
sink = pcc2chip[PccTPIACKR];
if ((base_addr[CyLICR] >> 2) == port) {
str++;
i++;
do_lf = 0;
- }
- else if (*str == '\n') {
+ } else if (*str == '\n') {
base_addr[CyTDR] = '\r';
do_lf = 1;
- }
- else {
+ } else {
base_addr[CyTDR] = *str++;
i++;
}
base_addr[CyTEOIR] = 0;
- }
- else
+ } else
base_addr[CyTEOIR] = CyNOTRANS;
}
}
local_irq_restore(flags);
}
-static struct tty_driver *serial167_console_device(struct console *c, int *index)
+static struct tty_driver *serial167_console_device(struct console *c,
+ int *index)
{
*index = c->index;
return cy_serial_driver;
}
-
static int __init serial167_console_setup(struct console *co, char *options)
{
return 0;
}
-
static struct console sercons = {
- .name = "ttyS",
- .write = serial167_console_write,
- .device = serial167_console_device,
- .setup = serial167_console_setup,
- .flags = CON_PRINTBUFFER,
- .index = -1,
+ .name = "ttyS",
+ .write = serial167_console_write,
+ .device = serial167_console_device,
+ .setup = serial167_console_setup,
+ .flags = CON_PRINTBUFFER,
+ .index = -1,
};
-
static int __init serial167_console_init(void)
{
if (vme_brdtype == VME_TYPE_MVME166 ||
- vme_brdtype == VME_TYPE_MVME167 ||
- vme_brdtype == VME_TYPE_MVME177) {
+ vme_brdtype == VME_TYPE_MVME167 ||
+ vme_brdtype == VME_TYPE_MVME177) {
mvme167_serial_console_setup(0);
register_console(&sercons);
}
return 0;
}
+
console_initcall(serial167_console_init);
#ifdef CONFIG_REMOTE_DEBUG
-void putDebugChar (int c)
+void putDebugChar(int c)
{
- volatile unsigned char *base_addr = (u_char *)BASE_ADDR;
+ volatile unsigned char *base_addr = (u_char *) BASE_ADDR;
unsigned long flags;
volatile u_char sink;
u_char ier;
/* Ensure transmitter is enabled! */
port = DEBUG_PORT;
- base_addr[CyCAR] = (u_char)port;
+ base_addr[CyCAR] = (u_char) port;
while (base_addr[CyCCR])
;
base_addr[CyCCR] = CyENB_XMTR;
base_addr[CyIER] = CyTxMpty;
while (1) {
- if (pcc2chip[PccSCCTICR] & 0x20)
- {
+ if (pcc2chip[PccSCCTICR] & 0x20) {
/* We have a Tx int. Acknowledge it */
sink = pcc2chip[PccTPIACKR];
if ((base_addr[CyLICR] >> 2) == port) {
base_addr[CyTDR] = c;
base_addr[CyTEOIR] = 0;
break;
- }
- else
+ } else
base_addr[CyTEOIR] = CyNOTRANS;
}
}
int getDebugChar()
{
- volatile unsigned char *base_addr = (u_char *)BASE_ADDR;
+ volatile unsigned char *base_addr = (u_char *) BASE_ADDR;
unsigned long flags;
volatile u_char sink;
u_char ier;
/* Ensure receiver is enabled! */
port = DEBUG_PORT;
- base_addr[CyCAR] = (u_char)port;
+ base_addr[CyCAR] = (u_char) port;
#if 0
while (base_addr[CyCCR])
;
base_addr[CyIER] = CyRxData;
while (1) {
- if (pcc2chip[PccSCCRICR] & 0x20)
- {
+ if (pcc2chip[PccSCCRICR] & 0x20) {
/* We have a Rx int. Acknowledge it */
sink = pcc2chip[PccRPIACKR];
if ((base_addr[CyLICR] >> 2) == port) {
int cnt = base_addr[CyRFOC];
- while (cnt-- > 0)
- {
+ while (cnt-- > 0) {
c = base_addr[CyRDR];
if (c == 0)
- printk ("!! debug char is null (cnt=%d) !!", cnt);
+ printk
+ ("!! debug char is null (cnt=%d) !!",
+ cnt);
else
- queueDebugChar (c);
+ queueDebugChar(c);
}
base_addr[CyREOIR] = 0;
i = debugiq.out;
if (i == debugiq.in)
- panic ("Debug input queue empty!");
+ panic("Debug input queue empty!");
c = debugiq.buf[i];
if (++i == DEBUG_LEN)
i = 0;
debugiq.out = i;
break;
- }
- else
+ } else
base_addr[CyREOIR] = CyNOTRANS;
}
}
return (c);
}
-void queueDebugChar (int c)
+void queueDebugChar(int c)
{
int i;
debugiq.in = i;
}
-static void
-debug_setup()
+static void debug_setup()
{
- unsigned long flags;
- volatile unsigned char *base_addr = (u_char *)BASE_ADDR;
- int i, cflag;
+ unsigned long flags;
+ volatile unsigned char *base_addr = (u_char *) BASE_ADDR;
+ int i, cflag;
- cflag = B19200;
+ cflag = B19200;
- local_irq_save(flags);
+ local_irq_save(flags);
- for (i = 0; i < 4; i++)
- {
- base_addr[CyCAR] = i;
- base_addr[CyLICR] = i << 2;
- }
+ for (i = 0; i < 4; i++) {
+ base_addr[CyCAR] = i;
+ base_addr[CyLICR] = i << 2;
+ }
- debugiq.in = debugiq.out = 0;
+ debugiq.in = debugiq.out = 0;
- base_addr[CyCAR] = DEBUG_PORT;
+ base_addr[CyCAR] = DEBUG_PORT;
- /* baud rate */
- i = cflag & CBAUD;
+ /* baud rate */
+ i = cflag & CBAUD;
- base_addr[CyIER] = 0;
+ base_addr[CyIER] = 0;
- base_addr[CyCMR] = CyASYNC;
- base_addr[CyLICR] = DEBUG_PORT << 2;
- base_addr[CyLIVR] = 0x5c;
+ base_addr[CyCMR] = CyASYNC;
+ base_addr[CyLICR] = DEBUG_PORT << 2;
+ base_addr[CyLIVR] = 0x5c;
- /* tx and rx baud rate */
+ /* tx and rx baud rate */
- base_addr[CyTCOR] = baud_co[i];
- base_addr[CyTBPR] = baud_bpr[i];
- base_addr[CyRCOR] = baud_co[i] >> 5;
- base_addr[CyRBPR] = baud_bpr[i];
+ base_addr[CyTCOR] = baud_co[i];
+ base_addr[CyTBPR] = baud_bpr[i];
+ base_addr[CyRCOR] = baud_co[i] >> 5;
+ base_addr[CyRBPR] = baud_bpr[i];
- /* set line characteristics according configuration */
+ /* set line characteristics according configuration */
- base_addr[CySCHR1] = 0;
- base_addr[CySCHR2] = 0;
- base_addr[CySCRL] = 0;
- base_addr[CySCRH] = 0;
- base_addr[CyCOR1] = Cy_8_BITS | CyPARITY_NONE;
- base_addr[CyCOR2] = 0;
- base_addr[CyCOR3] = Cy_1_STOP;
- base_addr[CyCOR4] = baud_cor4[i];
- base_addr[CyCOR5] = 0;
- base_addr[CyCOR6] = 0;
- base_addr[CyCOR7] = 0;
+ base_addr[CySCHR1] = 0;
+ base_addr[CySCHR2] = 0;
+ base_addr[CySCRL] = 0;
+ base_addr[CySCRH] = 0;
+ base_addr[CyCOR1] = Cy_8_BITS | CyPARITY_NONE;
+ base_addr[CyCOR2] = 0;
+ base_addr[CyCOR3] = Cy_1_STOP;
+ base_addr[CyCOR4] = baud_cor4[i];
+ base_addr[CyCOR5] = 0;
+ base_addr[CyCOR6] = 0;
+ base_addr[CyCOR7] = 0;
- write_cy_cmd(base_addr,CyINIT_CHAN);
- write_cy_cmd(base_addr,CyENB_RCVR);
+ write_cy_cmd(base_addr, CyINIT_CHAN);
+ write_cy_cmd(base_addr, CyENB_RCVR);
- base_addr[CyCAR] = DEBUG_PORT; /* !!! Is this needed? */
+ base_addr[CyCAR] = DEBUG_PORT; /* !!! Is this needed? */
- base_addr[CyRTPRL] = 2;
- base_addr[CyRTPRH] = 0;
+ base_addr[CyRTPRL] = 2;
+ base_addr[CyRTPRH] = 0;
- base_addr[CyMSVR1] = CyRTS;
- base_addr[CyMSVR2] = CyDTR;
+ base_addr[CyMSVR1] = CyRTS;
+ base_addr[CyMSVR2] = CyDTR;
- base_addr[CyIER] = CyRxData;
+ base_addr[CyIER] = CyRxData;
- local_irq_restore(flags);
+ local_irq_restore(flags);
-} /* debug_setup */
+} /* debug_setup */
#endif
projects / linux-drm-fsl-dcu.git / blobdiff