*
* This version supports shared IRQ's (only for PCI boards).
*
- * $Log: cyclades.c,v $
* Prevent users from opening non-existing Z ports.
*
* Revision 2.3.2.8 2000/07/06 18:14:16 ivan
* Driver now makes sure that the constant SERIAL_XMIT_SIZE is defined;
*
* Revision 2.3.2.2 1999/10/01 11:27:43 ivan
- * Fixed bug in cyz_poll that would make all ports but port 0
+ * Fixed bug in cyz_poll that would make all ports but port 0
* unable to transmit/receive data (Cyclades-Z only);
* Implemented logic to prevent the RX buffer from being stuck with data
* due to a driver / firmware race condition in interrupt op mode
* Revision 2.3.1.1 1999/07/15 16:45:53 ivan
* Removed CY_PROC conditional compilation;
* Implemented SMP-awareness for the driver;
- * Implemented a new ISA IRQ autoprobe that uses the irq_probe_[on|off]
+ * Implemented a new ISA IRQ autoprobe that uses the irq_probe_[on|off]
* functions;
* The driver now accepts memory addresses (maddr=0xMMMMM) and IRQs
* (irq=NN) as parameters (only for ISA boards);
- * Fixed bug in set_line_char that would prevent the Cyclades-Z
+ * Fixed bug in set_line_char that would prevent the Cyclades-Z
* ports from being configured at speeds above 115.2Kbps;
* Fixed bug in cy_set_termios that would prevent XON/XOFF flow control
* switching from working properly;
- * The driver now only prints IRQ info for the Cyclades-Z if it's
+ * The driver now only prints IRQ info for the Cyclades-Z if it's
* configured to work in interrupt mode;
*
* Revision 2.2.2.3 1999/06/28 11:13:29 ivan
* Added support for interrupt mode operation for the Z cards;
* Removed the driver inactivity control for the Z;
- * Added a missing MOD_DEC_USE_COUNT in the cy_open function for when
+ * Added a missing MOD_DEC_USE_COUNT in the cy_open function for when
* the Z firmware is not loaded yet;
- * Replaced the "manual" Z Tx flush buffer by a call to a FW command of
+ * Replaced the "manual" Z Tx flush buffer by a call to a FW command of
* same functionality;
- * Implemented workaround for IRQ setting loss on the PCI configuration
+ * Implemented workaround for IRQ setting loss on the PCI configuration
* registers after a PCI bridge EEPROM reload (affects PLX9060 only);
*
* Revision 2.2.2.2 1999/05/14 17:18:15 ivan
* BREAK implementation changed in order to make use of the 'break_ctl'
* TTY facility;
* Fixed typo in TTY structure field 'driver_name';
- * Included a PCI bridge reset and EEPROM reload in the board
+ * Included a PCI bridge reset and EEPROM reload in the board
* initialization code (for both Y and Z series).
*
* Revision 2.2.2.1 1999/04/08 16:17:43 ivan
- * Fixed a bug in cy_wait_until_sent that was preventing the port to be
+ * Fixed a bug in cy_wait_until_sent that was preventing the port to be
* closed properly after a SIGINT;
* Module usage counter scheme revisited;
* Added support to the upcoming Y PCI boards (i.e., support to additional
* PCI Device ID's).
- *
+ *
* Revision 2.2.1.10 1999/01/20 16:14:29 ivan
* Removed all unnecessary page-alignement operations in ioremap calls
* (ioremap is currently safe for these operations).
*
* Revision 2.2.1.9 1998/12/30 18:18:30 ivan
- * Changed access to PLX PCI bridge registers from I/O to MMIO, in
+ * Changed access to PLX PCI bridge registers from I/O to MMIO, in
* order to make PLX9050-based boards work with certain motherboards.
*
* Revision 2.2.1.8 1998/11/13 12:46:20 ivan
* Fixed Cyclom-4Yo hardware detection bug.
*
* Revision 2.2.1.4 1998/08/04 11:02:50 ivan
- * /proc/cyclades implementation with great collaboration of
+ * /proc/cyclades implementation with great collaboration of
* Marc Lewis <marc@blarg.net>;
* cyy_interrupt was changed to avoid occurrence of kernel oopses
* during PPP operation.
* General code review in order to comply with 2.1 kernel standards;
* data loss prevention for slow devices revisited (cy_wait_until_sent
* was created);
- * removed conditional compilation for new/old PCI structure support
+ * removed conditional compilation for new/old PCI structure support
* (now the driver only supports the new PCI structure).
*
* Revision 2.2.1.1 1998/03/19 16:43:12 ivan
* cleaned up the data loss fix;
* fixed XON/XOFF handling once more (Cyclades-Z);
* general review of the driver routines;
- * introduction of a mechanism to prevent data loss with slow
+ * introduction of a mechanism to prevent data loss with slow
* printers, by forcing a delay before closing the port.
*
* Revision 2.1.1.2 1998/02/17 16:50:00 ivan
* Code review for the module cleanup routine;
* fixed RTS and DTR status report for new CD1400's in get_modem_info;
* includes anonymous changes regarding signal_pending.
- *
+ *
* Revision 2.1 1997/11/01 17:42:41 ivan
* Changes in the driver to support Alpha systems (except 8Zo V_1);
* BREAK fix for the Cyclades-Z boards;
* driver inactivity control by FW implemented;
- * introduction of flag that allows driver to take advantage of
+ * introduction of flag that allows driver to take advantage of
* a special CD1400 feature related to HW flow control;
* added support for the CD1400 rev. J (Cyclom-Y boards);
* introduction of ioctls to:
* - adjust the polling interval (Cyclades-Z);
*
* Revision 1.36.4.33 1997/06/27 19:00:00 ivan
- * Fixes related to kernel version conditional
+ * Fixes related to kernel version conditional
* compilation.
- *
+ *
* Revision 1.36.4.32 1997/06/14 19:30:00 ivan
- * Compatibility issues between kernels 2.0.x and
+ * Compatibility issues between kernels 2.0.x and
* 2.1.x (mainly related to clear_bit function).
- *
+ *
* Revision 1.36.4.31 1997/06/03 15:30:00 ivan
- * Changes to define the memory window according to the
+ * Changes to define the memory window according to the
* board type.
- *
+ *
* Revision 1.36.4.30 1997/05/16 15:30:00 daniel
* Changes to support new cycladesZ boards.
*
#undef CY_PCI_DEBUG
/*
- * Include section
+ * Include section
*/
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/firmware.h>
#include <asm/system.h>
-#include <asm/io.h>
+#include <linux/io.h>
#include <asm/irq.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
#include <linux/kernel.h>
#include <linux/pci.h>
((readl(&((struct RUNTIME_9060 __iomem *) \
((card).ctl_addr))->init_ctrl) & (1<<17)) != 0)
-#define ISZLOADED(card) (((ZO_V1==readl(&((struct RUNTIME_9060 __iomem *) \
+#define ISZLOADED(card) (((ZO_V1 == readl(&((struct RUNTIME_9060 __iomem *) \
((card).ctl_addr))->mail_box_0)) || \
Z_FPGA_CHECK(card)) && \
- (ZFIRM_ID==readl(&((struct FIRM_ID __iomem *) \
+ (ZFIRM_ID == readl(&((struct FIRM_ID __iomem *) \
((card).base_addr+ID_ADDRESS))->signature)))
#ifndef SERIAL_XMIT_SIZE
/*
* This is used to look up the divisor speeds and the timeouts
* We're normally limited to 15 distinct baud rates. The extra
- * are accessed via settings in info->flags.
+ * are accessed via settings in info->port.flags.
* 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
* 10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
* HI VHI
/*
* The Cyclades driver implements HW flow control as any serial driver.
- * The cyclades_port structure member rflow and the vector rflow_thr
- * allows us to take advantage of a special feature in the CD1400 to avoid
- * data loss even when the system interrupt latency is too high. These flags
- * are to be used only with very special applications. Setting these flags
- * requires the use of a special cable (DTR and RTS reversed). In the new
- * CD1400-based boards (rev. 6.00 or later), there is no need for special
+ * The cyclades_port structure member rflow and the vector rflow_thr
+ * allows us to take advantage of a special feature in the CD1400 to avoid
+ * data loss even when the system interrupt latency is too high. These flags
+ * are to be used only with very special applications. Setting these flags
+ * requires the use of a special cable (DTR and RTS reversed). In the new
+ * CD1400-based boards (rev. 6.00 or later), there is no need for special
* cables.
*/
#ifdef CONFIG_PCI
static struct pci_device_id cy_pci_dev_id[] __devinitdata = {
- { PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_Y_Lo) }, /* PCI < 1Mb */
- { PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_Y_Hi) }, /* PCI > 1Mb */
- { PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_4Y_Lo) }, /* 4Y PCI < 1Mb */
- { PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_4Y_Hi) }, /* 4Y PCI > 1Mb */
- { PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_8Y_Lo) }, /* 8Y PCI < 1Mb */
- { PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_8Y_Hi) }, /* 8Y PCI > 1Mb */
- { PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_Z_Lo) }, /* Z PCI < 1Mb */
- { PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_Z_Hi) }, /* Z PCI > 1Mb */
+ /* PCI < 1Mb */
+ { PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_Y_Lo) },
+ /* PCI > 1Mb */
+ { PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_Y_Hi) },
+ /* 4Y PCI < 1Mb */
+ { PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_4Y_Lo) },
+ /* 4Y PCI > 1Mb */
+ { PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_4Y_Hi) },
+ /* 8Y PCI < 1Mb */
+ { PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_8Y_Lo) },
+ /* 8Y PCI > 1Mb */
+ { PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_8Y_Hi) },
+ /* Z PCI < 1Mb */
+ { PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_Z_Lo) },
+ /* Z PCI > 1Mb */
+ { PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_Z_Hi) },
{ } /* end of table */
};
MODULE_DEVICE_TABLE(pci, cy_pci_dev_id);
This function is only called from inside spinlock-protected code.
*/
-static int cyy_issue_cmd(void __iomem * base_addr, u_char cmd, int index)
+static int cyy_issue_cmd(void __iomem *base_addr, u_char cmd, int index)
{
unsigned int i;
/* Check to see that the previous command has completed */
for (i = 0; i < 100; i++) {
- if (readb(base_addr + (CyCCR << index)) == 0) {
+ if (readb(base_addr + (CyCCR << index)) == 0)
break;
- }
udelay(10L);
}
/* if the CCR never cleared, the previous command
#ifdef CONFIG_ISA
/* ISA interrupt detection code */
-static unsigned detect_isa_irq(void __iomem * address)
+static unsigned detect_isa_irq(void __iomem *address)
{
int irq;
unsigned long irqs, flags;
cy_writeb(base_addr + (CyCAR << index), save_xir);
/* if there is nowhere to put the data, discard it */
- if (info->tty == NULL) {
+ if (info->port.tty == NULL) {
if ((readb(base_addr + (CyRIVR << index)) & CyIVRMask) ==
CyIVRRxEx) { /* exception */
data = readb(base_addr + (CyRDSR << index));
goto end;
}
/* there is an open port for this data */
- tty = info->tty;
+ tty = info->port.tty;
if ((readb(base_addr + (CyRIVR << index)) & CyIVRMask) ==
CyIVRRxEx) { /* exception */
data = readb(base_addr + (CyRDSR << index));
readb(base_addr + (CyRDSR <<
index)), TTY_BREAK);
info->icount.rx++;
- if (info->flags & ASYNC_SAK)
+ if (info->port.flags & ASYNC_SAK)
do_SAK(tty);
} else if (data & CyFRAME) {
- tty_insert_flip_char( tty,
+ tty_insert_flip_char(tty,
readb(base_addr + (CyRDSR <<
index)), TTY_FRAME);
info->icount.rx++;
goto end;
}
info = &cinfo->ports[channel + chip * 4];
- if (info->tty == NULL) {
+ if (info->port.tty == NULL) {
cy_writeb(base_addr + (CySRER << index),
readb(base_addr + (CySRER << index)) & ~CyTxRdy);
goto end;
}
goto done;
}
- if (info->xmit_buf == NULL) {
+ if (info->port.xmit_buf == NULL) {
cy_writeb(base_addr + (CySRER << index),
readb(base_addr + (CySRER << index)) &
~CyTxRdy);
goto done;
}
- if (info->tty->stopped || info->tty->hw_stopped) {
+ if (info->port.tty->stopped || info->port.tty->hw_stopped) {
cy_writeb(base_addr + (CySRER << index),
readb(base_addr + (CySRER << index)) &
~CyTxRdy);
* 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];
+ outch = info->port.xmit_buf[info->xmit_tail];
if (outch) {
info->xmit_cnt--;
info->xmit_tail = (info->xmit_tail + 1) &
}
done:
- tty_wakeup(info->tty);
+ tty_wakeup(info->port.tty);
end:
/* end of service */
cy_writeb(base_addr + (CyTIR << index), save_xir & 0x3f);
mdm_change = readb(base_addr + (CyMISR << index));
mdm_status = readb(base_addr + (CyMSVR1 << index));
- if (!info->tty)
+ if (!info->port.tty)
goto end;
if (mdm_change & CyANY_DELTA) {
wake_up_interruptible(&info->delta_msr_wait);
}
- if ((mdm_change & CyDCD) && (info->flags & ASYNC_CHECK_CD)) {
+ if ((mdm_change & CyDCD) && (info->port.flags & ASYNC_CHECK_CD)) {
if (!(mdm_status & CyDCD)) {
- tty_hangup(info->tty);
- info->flags &= ~ASYNC_NORMAL_ACTIVE;
+ tty_hangup(info->port.tty);
+ info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
}
- wake_up_interruptible(&info->open_wait);
+ wake_up_interruptible(&info->port.open_wait);
}
- if ((mdm_change & CyCTS) && (info->flags & ASYNC_CTS_FLOW)) {
- if (info->tty->hw_stopped) {
+ if ((mdm_change & CyCTS) && (info->port.flags & ASYNC_CTS_FLOW)) {
+ if (info->port.tty->hw_stopped) {
if (mdm_status & CyCTS) {
/* cy_start isn't used
because... !!! */
- info->tty->hw_stopped = 0;
+ info->port.tty->hw_stopped = 0;
cy_writeb(base_addr + (CySRER << index),
readb(base_addr + (CySRER << index)) |
CyTxRdy);
- tty_wakeup(info->tty);
+ tty_wakeup(info->port.tty);
}
} else {
if (!(mdm_status & CyCTS)) {
/* cy_stop isn't used
because ... !!! */
- info->tty->hw_stopped = 1;
+ info->port.tty->hw_stopped = 1;
cy_writeb(base_addr + (CySRER << index),
readb(base_addr + (CySRER << index)) &
~CyTxRdy);
if (unlikely(cinfo == NULL)) {
#ifdef CY_DEBUG_INTERRUPTS
- printk(KERN_DEBUG "cyy_interrupt: spurious interrupt %d\n",irq);
+ printk(KERN_DEBUG "cyy_interrupt: spurious interrupt %d\n",
+ irq);
#endif
return IRQ_NONE; /* spurious interrupt */
}
/***********************************************************/
/********* End of block of Cyclom-Y specific code **********/
-/******** Start of block of Cyclades-Z specific code *********/
+/******** Start of block of Cyclades-Z specific code *******/
/***********************************************************/
static int
cyz_fetch_msg(struct cyclades_card *cinfo,
- __u32 * channel, __u8 * cmd, __u32 * param)
+ __u32 *channel, __u8 *cmd, __u32 *param)
{
struct FIRM_ID __iomem *firm_id;
struct ZFW_CTRL __iomem *zfw_ctrl;
unsigned long loc_doorbell;
firm_id = cinfo->base_addr + ID_ADDRESS;
- if (!ISZLOADED(*cinfo)) {
+ if (!ISZLOADED(*cinfo))
return -1;
- }
zfw_ctrl = cinfo->base_addr + (readl(&firm_id->zfwctrl_addr) & 0xfffff);
board_ctrl = &zfw_ctrl->board_ctrl;
unsigned int index;
firm_id = cinfo->base_addr + ID_ADDRESS;
- if (!ISZLOADED(*cinfo)) {
+ if (!ISZLOADED(*cinfo))
return -1;
- }
+
zfw_ctrl = cinfo->base_addr + (readl(&firm_id->zfwctrl_addr) & 0xfffff);
board_ctrl = &zfw_ctrl->board_ctrl;
pci_doorbell =
&((struct RUNTIME_9060 __iomem *)(cinfo->ctl_addr))->pci_doorbell;
while ((readl(pci_doorbell) & 0xff) != 0) {
- if (index++ == 1000) {
+ if (index++ == 1000)
return (int)(readl(pci_doorbell) & 0xff);
- }
udelay(50L);
}
cy_writel(&board_ctrl->hcmd_channel, channel);
struct BUF_CTRL __iomem *buf_ctrl)
{
struct cyclades_card *cinfo = info->card;
- struct tty_struct *tty = info->tty;
+ struct tty_struct *tty = info->port.tty;
unsigned int char_count;
int len;
#ifdef BLOCKMOVE
while (len--) {
data = readb(cinfo->base_addr + rx_bufaddr +
new_rx_get);
- new_rx_get = (new_rx_get + 1)& (rx_bufsize - 1);
+ new_rx_get = (new_rx_get + 1) &
+ (rx_bufsize - 1);
tty_insert_flip_char(tty, data, TTY_NORMAL);
info->idle_stats.recv_bytes++;
info->icount.rx++;
struct BUF_CTRL __iomem *buf_ctrl)
{
struct cyclades_card *cinfo = info->card;
- struct tty_struct *tty = info->tty;
+ struct tty_struct *tty = info->port.tty;
u8 data;
unsigned int char_count;
#ifdef BLOCKMOVE
memcpy_toio((char *)(cinfo->base_addr + tx_bufaddr +
tx_put),
- &info->xmit_buf[info->xmit_tail],
+ &info->port.xmit_buf[info->xmit_tail],
small_count);
tx_put = (tx_put + small_count) & (tx_bufsize - 1);
}
#else
while (info->xmit_cnt && char_count) {
- data = info->xmit_buf[info->xmit_tail];
+ data = info->port.xmit_buf[info->xmit_tail];
info->xmit_cnt--;
info->xmit_tail = (info->xmit_tail + 1) &
(SERIAL_XMIT_SIZE - 1);
special_count = 0;
delta_count = 0;
info = &cinfo->ports[channel];
- if ((tty = info->tty) == NULL)
+ tty = info->port.tty;
+ if (tty == NULL)
continue;
ch_ctrl = &(zfw_ctrl->ch_ctrl[channel]);
case C_CM_MDCD:
info->icount.dcd++;
delta_count++;
- if (info->flags & ASYNC_CHECK_CD) {
+ if (info->port.flags & ASYNC_CHECK_CD) {
if ((fw_ver > 241 ? ((u_long) param) :
readl(&ch_ctrl->rs_status)) &
C_RS_DCD) {
- wake_up_interruptible(&info->open_wait);
+ wake_up_interruptible(&info->port.open_wait);
} else {
- tty_hangup(info->tty);
- wake_up_interruptible(&info->open_wait);
- info->flags &= ~ASYNC_NORMAL_ACTIVE;
+ tty_hangup(info->port.tty);
+ wake_up_interruptible(&info->port.open_wait);
+ info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
}
}
break;
if (unlikely(cinfo == NULL)) {
#ifdef CY_DEBUG_INTERRUPTS
- printk(KERN_DEBUG "cyz_interrupt: spurious interrupt %d\n",irq);
+ printk(KERN_DEBUG "cyz_interrupt: spurious interrupt %d\n",
+ irq);
#endif
return IRQ_NONE; /* spurious interrupt */
}
for (port = 0; port < cinfo->nports; port++) {
info = &cinfo->ports[port];
- tty = info->tty;
+ tty = info->port.tty;
buf_ctrl = &(zfw_ctrl->buf_ctrl[port]);
if (!info->throttle)
spin_lock_irqsave(&card->card_lock, flags);
- if (info->flags & ASYNC_INITIALIZED) {
+ if (info->port.flags & ASYNC_INITIALIZED) {
free_page(page);
goto errout;
}
if (!info->type) {
- if (info->tty) {
- set_bit(TTY_IO_ERROR, &info->tty->flags);
- }
+ if (info->port.tty)
+ set_bit(TTY_IO_ERROR, &info->port.tty->flags);
free_page(page);
goto errout;
}
- if (info->xmit_buf)
+ if (info->port.xmit_buf)
free_page(page);
else
- info->xmit_buf = (unsigned char *)page;
+ info->port.xmit_buf = (unsigned char *)page;
spin_unlock_irqrestore(&card->card_lock, flags);
cy_writeb(base_addr + (CySRER << index),
readb(base_addr + (CySRER << index)) | CyRxData);
- info->flags |= ASYNC_INITIALIZED;
+ info->port.flags |= ASYNC_INITIALIZED;
- if (info->tty) {
- clear_bit(TTY_IO_ERROR, &info->tty->flags);
- }
+ if (info->port.tty)
+ clear_bit(TTY_IO_ERROR, &info->port.tty->flags);
info->xmit_cnt = info->xmit_head = info->xmit_tail = 0;
info->breakon = info->breakoff = 0;
memset((char *)&info->idle_stats, 0, sizeof(info->idle_stats));
base_addr = card->base_addr;
firm_id = base_addr + ID_ADDRESS;
- if (!ISZLOADED(*card)) {
+ if (!ISZLOADED(*card))
return -ENODEV;
- }
zfw_ctrl = card->base_addr +
(readl(&firm_id->zfwctrl_addr) & 0xfffff);
/* enable send, recv, modem !!! */
- info->flags |= ASYNC_INITIALIZED;
- if (info->tty) {
- clear_bit(TTY_IO_ERROR, &info->tty->flags);
- }
+ info->port.flags |= ASYNC_INITIALIZED;
+ if (info->port.tty)
+ clear_bit(TTY_IO_ERROR, &info->port.tty->flags);
info->xmit_cnt = info->xmit_head = info->xmit_tail = 0;
info->breakon = info->breakoff = 0;
memset((char *)&info->idle_stats, 0, sizeof(info->idle_stats));
void __iomem *base_addr;
int chip, channel, index;
- if (!(info->flags & ASYNC_INITIALIZED)) {
+ if (!(info->port.flags & ASYNC_INITIALIZED))
return;
- }
card = info->card;
channel = info->line - card->first_line;
/* Clear delta_msr_wait queue to avoid mem leaks. */
wake_up_interruptible(&info->delta_msr_wait);
- if (info->xmit_buf) {
+ if (info->port.xmit_buf) {
unsigned char *temp;
- temp = info->xmit_buf;
- info->xmit_buf = NULL;
+ temp = info->port.xmit_buf;
+ info->port.xmit_buf = NULL;
free_page((unsigned long)temp);
}
cy_writeb(base_addr + (CyCAR << index), (u_char) channel);
- if (!info->tty || (info->tty->termios->c_cflag & HUPCL)) {
+ if (!info->port.tty || (info->port.tty->termios->c_cflag & HUPCL)) {
cy_writeb(base_addr + (CyMSVR1 << index), ~CyRTS);
cy_writeb(base_addr + (CyMSVR2 << index), ~CyDTR);
#ifdef CY_DEBUG_DTR
/* it may be appropriate to clear _XMIT at
some later date (after testing)!!! */
- if (info->tty) {
- set_bit(TTY_IO_ERROR, &info->tty->flags);
- }
- info->flags &= ~ASYNC_INITIALIZED;
+ if (info->port.tty)
+ set_bit(TTY_IO_ERROR, &info->port.tty->flags);
+ info->port.flags &= ~ASYNC_INITIALIZED;
spin_unlock_irqrestore(&card->card_lock, flags);
} else {
struct FIRM_ID __iomem *firm_id;
#endif
firm_id = base_addr + ID_ADDRESS;
- if (!ISZLOADED(*card)) {
+ if (!ISZLOADED(*card))
return;
- }
zfw_ctrl = card->base_addr +
(readl(&firm_id->zfwctrl_addr) & 0xfffff);
spin_lock_irqsave(&card->card_lock, flags);
- if (info->xmit_buf) {
+ if (info->port.xmit_buf) {
unsigned char *temp;
- temp = info->xmit_buf;
- info->xmit_buf = NULL;
+ temp = info->port.xmit_buf;
+ info->port.xmit_buf = NULL;
free_page((unsigned long)temp);
}
- if (!info->tty || (info->tty->termios->c_cflag & HUPCL)) {
+ if (!info->port.tty || (info->port.tty->termios->c_cflag & HUPCL)) {
cy_writel(&ch_ctrl[channel].rs_control,
(__u32)(readl(&ch_ctrl[channel].rs_control) &
~(C_RS_RTS | C_RS_DTR)));
#endif
}
- if (info->tty) {
- set_bit(TTY_IO_ERROR, &info->tty->flags);
- }
- info->flags &= ~ASYNC_INITIALIZED;
+ if (info->port.tty)
+ set_bit(TTY_IO_ERROR, &info->port.tty->flags);
+ info->port.flags &= ~ASYNC_INITIALIZED;
spin_unlock_irqrestore(&card->card_lock, flags);
}
* If the device is in the middle of being closed, then block
* until it's done, and then try again.
*/
- if (tty_hung_up_p(filp) || (info->flags & ASYNC_CLOSING)) {
- wait_event_interruptible(info->close_wait,
- !(info->flags & ASYNC_CLOSING));
- return (info->flags & ASYNC_HUP_NOTIFY) ? -EAGAIN: -ERESTARTSYS;
+ if (tty_hung_up_p(filp) || (info->port.flags & ASYNC_CLOSING)) {
+ wait_event_interruptible(info->port.close_wait,
+ !(info->port.flags & ASYNC_CLOSING));
+ return (info->port.flags & ASYNC_HUP_NOTIFY) ? -EAGAIN: -ERESTARTSYS;
}
/*
* If non-blocking mode is set, then make the check up front
* and then exit.
*/
- if ((filp->f_flags & O_NONBLOCK) || (tty->flags & (1 << TTY_IO_ERROR))) {
- info->flags |= ASYNC_NORMAL_ACTIVE;
+ if ((filp->f_flags & O_NONBLOCK) ||
+ (tty->flags & (1 << TTY_IO_ERROR))) {
+ info->port.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
+ * this loop, info->port.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);
+ add_wait_queue(&info->port.open_wait, &wait);
#ifdef CY_DEBUG_OPEN
printk(KERN_DEBUG "cyc block_til_ready before block: ttyC%d, "
- "count = %d\n", info->line, info->count);
+ "count = %d\n", info->line, info->port.count);
#endif
spin_lock_irqsave(&cinfo->card_lock, flags);
if (!tty_hung_up_p(filp))
- info->count--;
+ info->port.count--;
spin_unlock_irqrestore(&cinfo->card_lock, flags);
#ifdef CY_DEBUG_COUNT
printk(KERN_DEBUG "cyc block_til_ready: (%d): decrementing count to "
- "%d\n", current->pid, info->count);
+ "%d\n", current->pid, info->port.count);
#endif
- info->blocked_open++;
+ info->port.blocked_open++;
if (!IS_CYC_Z(*cinfo)) {
chip = channel >> 2;
set_current_state(TASK_INTERRUPTIBLE);
if (tty_hung_up_p(filp) ||
- !(info->flags & ASYNC_INITIALIZED)) {
- retval = ((info->flags & ASYNC_HUP_NOTIFY) ?
+ !(info->port.flags & ASYNC_INITIALIZED)) {
+ retval = ((info->port.flags & ASYNC_HUP_NOTIFY) ?
-EAGAIN : -ERESTARTSYS);
break;
}
spin_lock_irqsave(&cinfo->card_lock, flags);
cy_writeb(base_addr + (CyCAR << index),
(u_char) channel);
- if (!(info->flags & ASYNC_CLOSING) && (C_CLOCAL(tty) ||
+ if (!(info->port.flags & ASYNC_CLOSING) && (C_CLOCAL(tty) ||
(readb(base_addr +
(CyMSVR1 << index)) & CyDCD))) {
spin_unlock_irqrestore(&cinfo->card_lock, flags);
#ifdef CY_DEBUG_OPEN
printk(KERN_DEBUG "cyc block_til_ready blocking: "
"ttyC%d, count = %d\n",
- info->line, info->count);
+ info->line, info->port.count);
#endif
schedule();
}
firm_id = base_addr + ID_ADDRESS;
if (!ISZLOADED(*cinfo)) {
__set_current_state(TASK_RUNNING);
- remove_wait_queue(&info->open_wait, &wait);
+ remove_wait_queue(&info->port.open_wait, &wait);
return -EINVAL;
}
- zfw_ctrl = base_addr + (readl(&firm_id->zfwctrl_addr)& 0xfffff);
+ zfw_ctrl = base_addr + (readl(&firm_id->zfwctrl_addr)
+ & 0xfffff);
board_ctrl = &zfw_ctrl->board_ctrl;
ch_ctrl = zfw_ctrl->ch_ctrl;
set_current_state(TASK_INTERRUPTIBLE);
if (tty_hung_up_p(filp) ||
- !(info->flags & ASYNC_INITIALIZED)) {
- retval = ((info->flags & ASYNC_HUP_NOTIFY) ?
+ !(info->port.flags & ASYNC_INITIALIZED)) {
+ retval = ((info->port.flags & ASYNC_HUP_NOTIFY) ?
-EAGAIN : -ERESTARTSYS);
break;
}
- if (!(info->flags & ASYNC_CLOSING) && (C_CLOCAL(tty) ||
+ if (!(info->port.flags & ASYNC_CLOSING) && (C_CLOCAL(tty) ||
(readl(&ch_ctrl[channel].rs_status) &
C_RS_DCD))) {
break;
#ifdef CY_DEBUG_OPEN
printk(KERN_DEBUG "cyc block_til_ready blocking: "
"ttyC%d, count = %d\n",
- info->line, info->count);
+ info->line, info->port.count);
#endif
schedule();
}
}
__set_current_state(TASK_RUNNING);
- remove_wait_queue(&info->open_wait, &wait);
+ remove_wait_queue(&info->port.open_wait, &wait);
if (!tty_hung_up_p(filp)) {
- info->count++;
+ info->port.count++;
#ifdef CY_DEBUG_COUNT
printk(KERN_DEBUG "cyc:block_til_ready (%d): incrementing "
- "count to %d\n", current->pid, info->count);
+ "count to %d\n", current->pid, info->port.count);
#endif
}
- info->blocked_open--;
+ info->port.blocked_open--;
#ifdef CY_DEBUG_OPEN
printk(KERN_DEBUG "cyc:block_til_ready after blocking: ttyC%d, "
- "count = %d\n", info->line, info->count);
+ "count = %d\n", info->line, info->port.count);
#endif
if (retval)
return retval;
- info->flags |= ASYNC_NORMAL_ACTIVE;
+ info->port.flags |= ASYNC_NORMAL_ACTIVE;
return 0;
} /* block_til_ready */
int retval;
line = tty->index;
- if ((tty->index < 0) || (NR_PORTS <= line)) {
+ if (tty->index < 0 || NR_PORTS <= line)
return -ENODEV;
- }
+
for (i = 0; i < NR_CARDS; i++)
if (line < cy_card[i].first_line + cy_card[i].nports &&
line >= cy_card[i].first_line)
if (i >= NR_CARDS)
return -ENODEV;
info = &cy_card[i].ports[line - cy_card[i].first_line];
- if (info->line < 0) {
+ if (info->line < 0)
return -ENODEV;
- }
/* If the card's firmware hasn't been loaded,
treat it as absent from the system. This
printk(KERN_DEBUG "cyc:cy_open ttyC%d\n", info->line);
#endif
tty->driver_data = info;
- info->tty = tty;
- if (serial_paranoia_check(info, tty->name, "cy_open")) {
+ info->port.tty = tty;
+ if (serial_paranoia_check(info, tty->name, "cy_open"))
return -ENODEV;
- }
+
#ifdef CY_DEBUG_OPEN
printk(KERN_DEBUG "cyc:cy_open ttyC%d, count = %d\n", info->line,
- info->count);
+ info->port.count);
#endif
- info->count++;
+ info->port.count++;
#ifdef CY_DEBUG_COUNT
printk(KERN_DEBUG "cyc:cy_open (%d): incrementing count to %d\n",
- current->pid, info->count);
+ current->pid, info->port.count);
#endif
/*
* If the port is the middle of closing, bail out now
*/
- if (tty_hung_up_p(filp) || (info->flags & ASYNC_CLOSING)) {
- wait_event_interruptible(info->close_wait,
- !(info->flags & ASYNC_CLOSING));
- return (info->flags & ASYNC_HUP_NOTIFY) ? -EAGAIN: -ERESTARTSYS;
+ if (tty_hung_up_p(filp) || (info->port.flags & ASYNC_CLOSING)) {
+ wait_event_interruptible(info->port.close_wait,
+ !(info->port.flags & ASYNC_CLOSING));
+ return (info->port.flags & ASYNC_HUP_NOTIFY) ? -EAGAIN: -ERESTARTSYS;
}
/*
* Start up serial port
*/
retval = startup(info);
- if (retval) {
+ if (retval)
return retval;
- }
retval = block_til_ready(tty, filp, info);
if (retval) {
return; /* Just in case.... */
orig_jiffies = jiffies;
+ lock_kernel();
/*
* Set the check interval to be 1/5 of the estimated time to
* send a single character, and make it at least 1. The check
}
/* Run one more char cycle */
msleep_interruptible(jiffies_to_msecs(char_time * 5));
+ unlock_kernel();
#ifdef CY_DEBUG_WAIT_UNTIL_SENT
printk(KERN_DEBUG "Clean (jiff=%lu)...done\n", jiffies);
#endif
}
+static void cy_flush_buffer(struct tty_struct *tty)
+{
+ struct cyclades_port *info = tty->driver_data;
+ struct cyclades_card *card;
+ int channel, retval;
+ unsigned long flags;
+
+#ifdef CY_DEBUG_IO
+ printk(KERN_DEBUG "cyc:cy_flush_buffer ttyC%d\n", info->line);
+#endif
+
+ if (serial_paranoia_check(info, tty->name, "cy_flush_buffer"))
+ return;
+
+ card = info->card;
+ channel = info->line - card->first_line;
+
+ spin_lock_irqsave(&card->card_lock, flags);
+ info->xmit_cnt = info->xmit_head = info->xmit_tail = 0;
+ spin_unlock_irqrestore(&card->card_lock, flags);
+
+ if (IS_CYC_Z(*card)) { /* If it is a Z card, flush the on-board
+ buffers as well */
+ spin_lock_irqsave(&card->card_lock, flags);
+ retval = cyz_issue_cmd(card, channel, C_CM_FLUSH_TX, 0L);
+ if (retval != 0) {
+ printk(KERN_ERR "cyc: flush_buffer retval on ttyC%d "
+ "was %x\n", info->line, retval);
+ }
+ spin_unlock_irqrestore(&card->card_lock, flags);
+ }
+ tty_wakeup(tty);
+} /* cy_flush_buffer */
+
+
/*
* This routine is called when a particular tty device is closed.
*/
printk(KERN_DEBUG "cyc:cy_close ttyC%d\n", info->line);
#endif
- if (!info || serial_paranoia_check(info, tty->name, "cy_close")) {
+ if (!info || serial_paranoia_check(info, tty->name, "cy_close"))
return;
- }
card = info->card;
}
#ifdef CY_DEBUG_OPEN
printk(KERN_DEBUG "cyc:cy_close ttyC%d, count = %d\n", info->line,
- info->count);
+ info->port.count);
#endif
- if ((tty->count == 1) && (info->count != 1)) {
+ if ((tty->count == 1) && (info->port.count != 1)) {
/*
* Uh, oh. tty->count is 1, which means that the tty
* structure will be freed. Info->count should always
* serial port won't be shutdown.
*/
printk(KERN_ERR "cyc:cy_close: bad serial port count; "
- "tty->count is 1, info->count is %d\n", info->count);
- info->count = 1;
+ "tty->count is 1, info->port.count is %d\n", info->port.count);
+ info->port.count = 1;
}
#ifdef CY_DEBUG_COUNT
printk(KERN_DEBUG "cyc:cy_close at (%d): decrementing count to %d\n",
- current->pid, info->count - 1);
+ current->pid, info->port.count - 1);
#endif
- if (--info->count < 0) {
+ if (--info->port.count < 0) {
#ifdef CY_DEBUG_COUNT
printk(KERN_DEBUG "cyc:cyc_close setting count to 0\n");
#endif
- info->count = 0;
+ info->port.count = 0;
}
- if (info->count) {
+ if (info->port.count) {
spin_unlock_irqrestore(&card->card_lock, flags);
return;
}
- info->flags |= ASYNC_CLOSING;
+ info->port.flags |= ASYNC_CLOSING;
/*
* Now we wait for the transmit buffer to clear; and we notify
*/
tty->closing = 1;
spin_unlock_irqrestore(&card->card_lock, flags);
- if (info->closing_wait != CY_CLOSING_WAIT_NONE) {
- tty_wait_until_sent(tty, info->closing_wait);
- }
+ if (info->port.closing_wait != CY_CLOSING_WAIT_NONE)
+ tty_wait_until_sent(tty, info->port.closing_wait);
+
spin_lock_irqsave(&card->card_lock, flags);
if (!IS_CYC_Z(*card)) {
cy_writeb(base_addr + (CyCAR << index), (u_char) channel);
cy_writeb(base_addr + (CySRER << index),
readb(base_addr + (CySRER << index)) & ~CyRxData);
- if (info->flags & ASYNC_INITIALIZED) {
- /* Waiting for on-board buffers to be empty before closing
- the port */
+ if (info->port.flags & ASYNC_INITIALIZED) {
+ /* Waiting for on-board buffers to be empty before
+ closing the port */
spin_unlock_irqrestore(&card->card_lock, flags);
cy_wait_until_sent(tty, info->timeout);
spin_lock_irqsave(&card->card_lock, flags);
}
} else {
#ifdef Z_WAKE
- /* Waiting for on-board buffers to be empty before closing the port */
+ /* Waiting for on-board buffers to be empty before closing
+ the port */
void __iomem *base_addr = card->base_addr;
struct FIRM_ID __iomem *firm_id = base_addr + ID_ADDRESS;
struct ZFW_CTRL __iomem *zfw_ctrl =
spin_unlock_irqrestore(&card->card_lock, flags);
shutdown(info);
- if (tty->driver->flush_buffer)
- tty->driver->flush_buffer(tty);
+ cy_flush_buffer(tty);
tty_ldisc_flush(tty);
spin_lock_irqsave(&card->card_lock, flags);
tty->closing = 0;
- info->tty = NULL;
- if (info->blocked_open) {
+ info->port.tty = NULL;
+ if (info->port.blocked_open) {
spin_unlock_irqrestore(&card->card_lock, flags);
- if (info->close_delay) {
+ if (info->port.close_delay) {
msleep_interruptible(jiffies_to_msecs
- (info->close_delay));
+ (info->port.close_delay));
}
- wake_up_interruptible(&info->open_wait);
+ wake_up_interruptible(&info->port.open_wait);
spin_lock_irqsave(&card->card_lock, flags);
}
- info->flags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_CLOSING);
- wake_up_interruptible(&info->close_wait);
+ info->port.flags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_CLOSING);
+ wake_up_interruptible(&info->port.close_wait);
#ifdef CY_DEBUG_OTHER
printk(KERN_DEBUG "cyc:cy_close done\n");
printk(KERN_DEBUG "cyc:cy_write ttyC%d\n", info->line);
#endif
- if (serial_paranoia_check(info, tty->name, "cy_write")) {
+ if (serial_paranoia_check(info, tty->name, "cy_write"))
return 0;
- }
- if (!info->xmit_buf)
+ if (!info->port.xmit_buf)
return 0;
spin_lock_irqsave(&info->card->card_lock, flags);
while (1) {
- c = min(count, min((int)(SERIAL_XMIT_SIZE - info->xmit_cnt - 1),
- (int)(SERIAL_XMIT_SIZE - info->xmit_head)));
+ c = min(count, (int)(SERIAL_XMIT_SIZE - info->xmit_cnt - 1));
+ c = min(c, (int)(SERIAL_XMIT_SIZE - info->xmit_head));
if (c <= 0)
break;
- memcpy(info->xmit_buf + info->xmit_head, buf, c);
+ memcpy(info->port.xmit_buf + info->xmit_head, buf, c);
info->xmit_head = (info->xmit_head + c) &
(SERIAL_XMIT_SIZE - 1);
info->xmit_cnt += c;
info->idle_stats.xmit_bytes += ret;
info->idle_stats.xmit_idle = jiffies;
- if (info->xmit_cnt && !tty->stopped && !tty->hw_stopped) {
+ if (info->xmit_cnt && !tty->stopped && !tty->hw_stopped)
start_xmit(info);
- }
+
return ret;
} /* cy_write */
* done stuffing characters into the driver. If there is no room
* in the queue, the character is ignored.
*/
-static void cy_put_char(struct tty_struct *tty, unsigned char ch)
+static int cy_put_char(struct tty_struct *tty, unsigned char ch)
{
struct cyclades_port *info = tty->driver_data;
unsigned long flags;
#endif
if (serial_paranoia_check(info, tty->name, "cy_put_char"))
- return;
+ return 0;
- if (!info->xmit_buf)
- return;
+ if (!info->port.xmit_buf)
+ return 0;
spin_lock_irqsave(&info->card->card_lock, flags);
if (info->xmit_cnt >= (int)(SERIAL_XMIT_SIZE - 1)) {
spin_unlock_irqrestore(&info->card->card_lock, flags);
- return;
+ return 0;
}
- info->xmit_buf[info->xmit_head++] = ch;
+ info->port.xmit_buf[info->xmit_head++] = ch;
info->xmit_head &= SERIAL_XMIT_SIZE - 1;
info->xmit_cnt++;
info->idle_stats.xmit_bytes++;
info->idle_stats.xmit_idle = jiffies;
spin_unlock_irqrestore(&info->card->card_lock, flags);
+ return 1;
} /* cy_put_char */
/*
* This routine is called by the kernel after it has written a
- * series of characters to the tty device using put_char().
+ * series of characters to the tty device using put_char().
*/
static void cy_flush_chars(struct tty_struct *tty)
{
return;
if (info->xmit_cnt <= 0 || tty->stopped || tty->hw_stopped ||
- !info->xmit_buf)
+ !info->port.xmit_buf)
return;
start_xmit(info);
int char_count;
__u32 tx_put, tx_get, tx_bufsize;
+ lock_kernel();
firm_id = card->base_addr + ID_ADDRESS;
zfw_ctrl = card->base_addr +
(readl(&firm_id->zfwctrl_addr) & 0xfffff);
printk(KERN_DEBUG "cyc:cy_chars_in_buffer ttyC%d %d\n",
info->line, info->xmit_cnt + char_count);
#endif
+ unlock_kernel();
return info->xmit_cnt + char_count;
}
#endif /* Z_EXT_CHARS_IN_BUFFER */
int baud, baud_rate = 0;
int i;
- if (!info->tty || !info->tty->termios) {
+ if (!info->port.tty || !info->port.tty->termios)
return;
- }
- if (info->line == -1) {
+
+ if (info->line == -1)
return;
- }
- cflag = info->tty->termios->c_cflag;
- iflag = info->tty->termios->c_iflag;
+
+ cflag = info->port.tty->termios->c_cflag;
+ iflag = info->port.tty->termios->c_iflag;
/*
* Set up the tty->alt_speed kludge
*/
- if (info->tty) {
- if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
- info->tty->alt_speed = 57600;
- if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
- info->tty->alt_speed = 115200;
- if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
- info->tty->alt_speed = 230400;
- if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
- info->tty->alt_speed = 460800;
+ if (info->port.tty) {
+ if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
+ info->port.tty->alt_speed = 57600;
+ if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
+ info->port.tty->alt_speed = 115200;
+ if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
+ info->port.tty->alt_speed = 230400;
+ if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
+ info->port.tty->alt_speed = 460800;
}
card = info->card;
index = card->bus_index;
/* baud rate */
- baud = tty_get_baud_rate(info->tty);
- if (baud == 38400 && (info->flags & ASYNC_SPD_MASK) ==
+ baud = tty_get_baud_rate(info->port.tty);
+ if (baud == 38400 && (info->port.flags & ASYNC_SPD_MASK) ==
ASYNC_SPD_CUST) {
if (info->custom_divisor)
baud_rate = info->baud / info->custom_divisor;
}
/* find the baud index */
for (i = 0; i < 20; i++) {
- if (baud == baud_table[i]) {
+ if (baud == baud_table[i])
break;
- }
}
- if (i == 20) {
+ if (i == 20)
i = 19; /* CD1400_MAX_SPEED */
- }
- if (baud == 38400 && (info->flags & ASYNC_SPD_MASK) ==
+ if (baud == 38400 && (info->port.flags & ASYNC_SPD_MASK) ==
ASYNC_SPD_CUST) {
cyy_baud_calc(info, baud_rate);
} else {
/* get it right for 134.5 baud */
info->timeout = (info->xmit_fifo_size * HZ * 30 / 269) +
2;
- } else if (baud == 38400 && (info->flags & ASYNC_SPD_MASK) ==
+ } else if (baud == 38400 && (info->port.flags & ASYNC_SPD_MASK) ==
ASYNC_SPD_CUST) {
info->timeout = (info->xmit_fifo_size * HZ * 15 /
baud_rate) + 2;
info->cor1 = Cy_8_BITS;
break;
}
- if (cflag & CSTOPB) {
+ if (cflag & CSTOPB)
info->cor1 |= Cy_2_STOP;
- }
+
if (cflag & PARENB) {
- if (cflag & PARODD) {
+ if (cflag & PARODD)
info->cor1 |= CyPARITY_O;
- } else {
+ else
info->cor1 |= CyPARITY_E;
- }
- } else {
+ } else
info->cor1 |= CyPARITY_NONE;
- }
/* CTS flow control flag */
if (cflag & CRTSCTS) {
- info->flags |= ASYNC_CTS_FLOW;
+ info->port.flags |= ASYNC_CTS_FLOW;
info->cor2 |= CyCtsAE;
} else {
- info->flags &= ~ASYNC_CTS_FLOW;
+ info->port.flags &= ~ASYNC_CTS_FLOW;
info->cor2 &= ~CyCtsAE;
}
if (cflag & CLOCAL)
- info->flags &= ~ASYNC_CHECK_CD;
+ info->port.flags &= ~ASYNC_CHECK_CD;
else
- info->flags |= ASYNC_CHECK_CD;
+ info->port.flags |= ASYNC_CHECK_CD;
/***********************************************
The hardware option, CyRtsAO, presents RTS when
/* set line characteristics according configuration */
cy_writeb(base_addr + (CySCHR1 << index),
- START_CHAR(info->tty));
- cy_writeb(base_addr + (CySCHR2 << index), STOP_CHAR(info->tty));
+ START_CHAR(info->port.tty));
+ cy_writeb(base_addr + (CySCHR2 << index), STOP_CHAR(info->port.tty));
cy_writeb(base_addr + (CyCOR1 << index), info->cor1);
cy_writeb(base_addr + (CyCOR2 << index), info->cor2);
cy_writeb(base_addr + (CyCOR3 << index), info->cor3);
cyy_issue_cmd(base_addr, CyCOR_CHANGE | CyCOR1ch | CyCOR2ch |
CyCOR3ch, index);
- cy_writeb(base_addr + (CyCAR << index), (u_char) channel); /* !!! Is this needed? */
+ /* !!! Is this needed? */
+ cy_writeb(base_addr + (CyCAR << index), (u_char) channel);
cy_writeb(base_addr + (CyRTPR << index),
(info->default_timeout ? info->default_timeout : 0x02));
/* 10ms rx timeout */
- if (C_CLOCAL(info->tty)) {
+ if (C_CLOCAL(info->port.tty)) {
/* without modem intr */
cy_writeb(base_addr + (CySRER << index),
readb(base_addr + (CySRER << index)) | CyMdmCh);
#endif
}
- if (info->tty) {
- clear_bit(TTY_IO_ERROR, &info->tty->flags);
- }
+ if (info->port.tty)
+ clear_bit(TTY_IO_ERROR, &info->port.tty->flags);
spin_unlock_irqrestore(&card->card_lock, flags);
} else {
int retval;
firm_id = card->base_addr + ID_ADDRESS;
- if (!ISZLOADED(*card)) {
+ if (!ISZLOADED(*card))
return;
- }
zfw_ctrl = card->base_addr +
(readl(&firm_id->zfwctrl_addr) & 0xfffff);
buf_ctrl = &zfw_ctrl->buf_ctrl[channel];
/* baud rate */
- baud = tty_get_baud_rate(info->tty);
- if (baud == 38400 && (info->flags & ASYNC_SPD_MASK) ==
+ baud = tty_get_baud_rate(info->port.tty);
+ if (baud == 38400 && (info->port.flags & ASYNC_SPD_MASK) ==
ASYNC_SPD_CUST) {
if (info->custom_divisor)
baud_rate = info->baud / info->custom_divisor;
/* get it right for 134.5 baud */
info->timeout = (info->xmit_fifo_size * HZ * 30 / 269) +
2;
- } else if (baud == 38400 && (info->flags & ASYNC_SPD_MASK) ==
+ } else if (baud == 38400 && (info->port.flags & ASYNC_SPD_MASK) ==
ASYNC_SPD_CUST) {
info->timeout = (info->xmit_fifo_size * HZ * 15 /
baud_rate) + 2;
readl(&ch_ctrl->comm_data_l) | C_DL_1STOP);
}
if (cflag & PARENB) {
- if (cflag & PARODD) {
+ if (cflag & PARODD)
cy_writel(&ch_ctrl->comm_parity, C_PR_ODD);
- } else {
+ else
cy_writel(&ch_ctrl->comm_parity, C_PR_EVEN);
- }
- } else {
+ } else
cy_writel(&ch_ctrl->comm_parity, C_PR_NONE);
- }
/* CTS flow control flag */
if (cflag & CRTSCTS) {
}
/* As the HW flow control is done in firmware, the driver
doesn't need to care about it */
- info->flags &= ~ASYNC_CTS_FLOW;
+ info->port.flags &= ~ASYNC_CTS_FLOW;
/* XON/XOFF/XANY flow control flags */
sw_flow = 0;
}
/* CD sensitivity */
- if (cflag & CLOCAL) {
- info->flags &= ~ASYNC_CHECK_CD;
- } else {
- info->flags |= ASYNC_CHECK_CD;
- }
+ if (cflag & CLOCAL)
+ info->port.flags &= ~ASYNC_CHECK_CD;
+ else
+ info->port.flags |= ASYNC_CHECK_CD;
if (baud == 0) { /* baud rate is zero, turn off line */
cy_writel(&ch_ctrl->rs_control,
#endif
}
- retval = cyz_issue_cmd(card, channel, C_CM_IOCTLM,0L);
+ retval = cyz_issue_cmd(card, channel, C_CM_IOCTLM, 0L);
if (retval != 0) {
printk(KERN_ERR "cyc:set_line_char(2) retval on ttyC%d "
"was %x\n", info->line, retval);
}
- if (info->tty) {
- clear_bit(TTY_IO_ERROR, &info->tty->flags);
- }
+ if (info->port.tty)
+ clear_bit(TTY_IO_ERROR, &info->port.tty->flags);
}
} /* set_line_char */
static int
get_serial_info(struct cyclades_port *info,
- struct serial_struct __user * retinfo)
+ struct serial_struct __user *retinfo)
{
struct serial_struct tmp;
struct cyclades_card *cinfo = info->card;
tmp.port = (info->card - cy_card) * 0x100 + info->line -
cinfo->first_line;
tmp.irq = cinfo->irq;
- tmp.flags = info->flags;
- tmp.close_delay = info->close_delay;
- tmp.closing_wait = info->closing_wait;
+ tmp.flags = info->port.flags;
+ tmp.close_delay = info->port.close_delay;
+ tmp.closing_wait = info->port.closing_wait;
tmp.baud_base = info->baud;
tmp.custom_divisor = info->custom_divisor;
tmp.hub6 = 0; /*!!! */
static int
set_serial_info(struct cyclades_port *info,
- struct serial_struct __user * new_info)
+ struct serial_struct __user *new_info)
{
struct serial_struct new_serial;
struct cyclades_port old_info;
old_info = *info;
if (!capable(CAP_SYS_ADMIN)) {
- if (new_serial.close_delay != info->close_delay ||
+ if (new_serial.close_delay != info->port.close_delay ||
new_serial.baud_base != info->baud ||
(new_serial.flags & ASYNC_FLAGS &
~ASYNC_USR_MASK) !=
- (info->flags & ASYNC_FLAGS & ~ASYNC_USR_MASK))
+ (info->port.flags & ASYNC_FLAGS & ~ASYNC_USR_MASK))
return -EPERM;
- info->flags = (info->flags & ~ASYNC_USR_MASK) |
+ info->port.flags = (info->port.flags & ~ASYNC_USR_MASK) |
(new_serial.flags & ASYNC_USR_MASK);
info->baud = new_serial.baud_base;
info->custom_divisor = new_serial.custom_divisor;
info->baud = new_serial.baud_base;
info->custom_divisor = new_serial.custom_divisor;
- info->flags = (info->flags & ~ASYNC_FLAGS) |
+ info->port.flags = (info->port.flags & ~ASYNC_FLAGS) |
(new_serial.flags & ASYNC_FLAGS);
- info->close_delay = new_serial.close_delay * HZ / 100;
- info->closing_wait = new_serial.closing_wait * HZ / 100;
+ info->port.close_delay = new_serial.close_delay * HZ / 100;
+ info->port.closing_wait = new_serial.closing_wait * HZ / 100;
check_and_exit:
- if (info->flags & ASYNC_INITIALIZED) {
+ if (info->port.flags & ASYNC_INITIALIZED) {
set_line_char(info);
return 0;
} else {
* transmit holding register is empty. This functionality
* allows an RS485 driver to be written in user space.
*/
-static int get_lsr_info(struct cyclades_port *info, unsigned int __user * value)
+static int get_lsr_info(struct cyclades_port *info, unsigned int __user *value)
{
struct cyclades_card *card;
int chip, channel, index;
struct BOARD_CTRL __iomem *board_ctrl;
struct CH_CTRL __iomem *ch_ctrl;
- if (serial_paranoia_check(info, tty->name, __FUNCTION__))
+ if (serial_paranoia_check(info, tty->name, __func__))
return -ENODEV;
+ lock_kernel();
+
card = info->card;
channel = info->line - card->first_line;
if (!IS_CYC_Z(*card)) {
((lstatus & C_RS_CTS) ? TIOCM_CTS : 0);
} else {
result = 0;
+ unlock_kernel();
return -ENODEV;
}
}
+ unlock_kernel();
return result;
} /* cy_tiomget */
struct CH_CTRL __iomem *ch_ctrl;
int retval;
- if (serial_paranoia_check(info, tty->name, __FUNCTION__))
+ if (serial_paranoia_check(info, tty->name, __func__))
return -ENODEV;
card = info->card;
/*
* cy_break() --- routine which turns the break handling on or off
*/
-static void cy_break(struct tty_struct *tty, int break_state)
+static int cy_break(struct tty_struct *tty, int break_state)
{
struct cyclades_port *info = tty->driver_data;
struct cyclades_card *card;
unsigned long flags;
+ int retval = 0;
if (serial_paranoia_check(info, tty->name, "cy_break"))
- return;
+ return -EINVAL;
card = info->card;
}
}
} else {
- int retval;
-
if (break_state == -1) {
retval = cyz_issue_cmd(card,
info->line - card->first_line,
}
}
spin_unlock_irqrestore(&card->card_lock, flags);
+ return retval;
} /* cy_break */
-static int
-get_mon_info(struct cyclades_port *info, struct cyclades_monitor __user * mon)
+static int get_mon_info(struct cyclades_port *info,
+ struct cyclades_monitor __user *mon)
{
if (copy_to_user(mon, &info->mon, sizeof(struct cyclades_monitor)))
return 0;
} /* set_threshold */
-static int
-get_threshold(struct cyclades_port *info, unsigned long __user * value)
+static int get_threshold(struct cyclades_port *info,
+ unsigned long __user *value)
{
struct cyclades_card *card;
void __iomem *base_addr;
return 0;
} /* get_threshold */
-static int
-set_default_threshold(struct cyclades_port *info, unsigned long value)
+static int set_default_threshold(struct cyclades_port *info,
+ unsigned long value)
{
info->default_threshold = value & 0x0f;
return 0;
} /* set_default_threshold */
-static int
-get_default_threshold(struct cyclades_port *info, unsigned long __user * value)
+static int get_default_threshold(struct cyclades_port *info,
+ unsigned long __user *value)
{
return put_user(info->default_threshold, value);
} /* get_default_threshold */
return 0;
} /* set_timeout */
-static int get_timeout(struct cyclades_port *info, unsigned long __user * value)
+static int get_timeout(struct cyclades_port *info,
+ unsigned long __user *value)
{
struct cyclades_card *card;
void __iomem *base_addr;
return 0;
} /* set_default_timeout */
-static int
-get_default_timeout(struct cyclades_port *info, unsigned long __user * value)
+static int get_default_timeout(struct cyclades_port *info,
+ unsigned long __user *value)
{
return put_user(info->default_timeout, value);
} /* get_default_timeout */
printk(KERN_DEBUG "cyc:cy_ioctl ttyC%d, cmd = %x arg = %lx\n",
info->line, cmd, arg);
#endif
+ lock_kernel();
switch (cmd) {
case CYGETMON:
break;
#endif /* CONFIG_CYZ_INTR */
case CYSETWAIT:
- info->closing_wait = (unsigned short)arg *HZ / 100;
+ info->port.closing_wait = (unsigned short)arg * HZ / 100;
ret_val = 0;
break;
case CYGETWAIT:
- ret_val = info->closing_wait / (HZ / 100);
+ ret_val = info->port.closing_wait / (HZ / 100);
break;
case TIOCGSERIAL:
ret_val = get_serial_info(info, argp);
p_cuser = argp;
ret_val = put_user(cnow.cts, &p_cuser->cts);
if (ret_val)
- return ret_val;
+ break;
ret_val = put_user(cnow.dsr, &p_cuser->dsr);
if (ret_val)
- return ret_val;
+ break;
ret_val = put_user(cnow.rng, &p_cuser->rng);
if (ret_val)
- return ret_val;
+ break;
ret_val = put_user(cnow.dcd, &p_cuser->dcd);
if (ret_val)
- return ret_val;
+ break;
ret_val = put_user(cnow.rx, &p_cuser->rx);
if (ret_val)
- return ret_val;
+ break;
ret_val = put_user(cnow.tx, &p_cuser->tx);
if (ret_val)
- return ret_val;
+ break;
ret_val = put_user(cnow.frame, &p_cuser->frame);
if (ret_val)
- return ret_val;
+ break;
ret_val = put_user(cnow.overrun, &p_cuser->overrun);
if (ret_val)
- return ret_val;
+ break;
ret_val = put_user(cnow.parity, &p_cuser->parity);
if (ret_val)
- return ret_val;
+ break;
ret_val = put_user(cnow.brk, &p_cuser->brk);
if (ret_val)
- return ret_val;
+ break;
ret_val = put_user(cnow.buf_overrun, &p_cuser->buf_overrun);
if (ret_val)
- return ret_val;
+ break;
ret_val = 0;
break;
default:
ret_val = -ENOIOCTLCMD;
}
+ unlock_kernel();
#ifdef CY_DEBUG_OTHER
printk(KERN_DEBUG "cyc:cy_ioctl done\n");
#endif
-
return ret_val;
} /* cy_ioctl */
*/
if (!(old_termios->c_cflag & CLOCAL) &&
(tty->termios->c_cflag & CLOCAL))
- wake_up_interruptible(&info->open_wait);
+ wake_up_interruptible(&info->port.open_wait);
#endif
} /* cy_set_termios */
tty->ldisc.chars_in_buffer(tty), info->line);
#endif
- if (serial_paranoia_check(info, tty->name, "cy_throttle")) {
+ if (serial_paranoia_check(info, tty->name, "cy_throttle"))
return;
- }
card = info->card;
char buf[64];
printk(KERN_DEBUG "cyc:unthrottle %s: %ld...ttyC%d\n",
- tty_name(tty, buf), tty->ldisc.chars_in_buffer(tty),info->line);
+ tty_name(tty, buf), tty_chars_in_buffer(tty), info->line);
#endif
- if (serial_paranoia_check(info, tty->name, "cy_unthrottle")) {
+ if (serial_paranoia_check(info, tty->name, "cy_unthrottle"))
return;
- }
if (I_IXOFF(tty)) {
if (info->x_char)
base_addr = cinfo->base_addr + (cy_chip_offset[chip] << index);
spin_lock_irqsave(&cinfo->card_lock, flags);
- cy_writeb(base_addr + (CyCAR << index), (u_char) (channel & 0x0003)); /* index channel */
+ cy_writeb(base_addr + (CyCAR << index),
+ (u_char) (channel & 0x0003)); /* index channel */
cy_writeb(base_addr + (CySRER << index),
readb(base_addr + (CySRER << index)) | CyTxRdy);
spin_unlock_irqrestore(&cinfo->card_lock, flags);
}
} /* cy_start */
-static void cy_flush_buffer(struct tty_struct *tty)
-{
- struct cyclades_port *info = tty->driver_data;
- struct cyclades_card *card;
- int channel, retval;
- unsigned long flags;
-
-#ifdef CY_DEBUG_IO
- printk(KERN_DEBUG "cyc:cy_flush_buffer ttyC%d\n", info->line);
-#endif
-
- if (serial_paranoia_check(info, tty->name, "cy_flush_buffer"))
- return;
-
- card = info->card;
- channel = info->line - card->first_line;
-
- spin_lock_irqsave(&card->card_lock, flags);
- info->xmit_cnt = info->xmit_head = info->xmit_tail = 0;
- spin_unlock_irqrestore(&card->card_lock, flags);
-
- if (IS_CYC_Z(*card)) { /* If it is a Z card, flush the on-board
- buffers as well */
- spin_lock_irqsave(&card->card_lock, flags);
- retval = cyz_issue_cmd(card, channel, C_CM_FLUSH_TX, 0L);
- if (retval != 0) {
- printk(KERN_ERR "cyc: flush_buffer retval on ttyC%d "
- "was %x\n", info->line, retval);
- }
- spin_unlock_irqrestore(&card->card_lock, flags);
- }
- tty_wakeup(tty);
-} /* cy_flush_buffer */
-
/*
* cy_hangup() --- called by tty_hangup() when a hangup is signaled.
*/
cy_flush_buffer(tty);
shutdown(info);
- info->count = 0;
+ info->port.count = 0;
#ifdef CY_DEBUG_COUNT
printk(KERN_DEBUG "cyc:cy_hangup (%d): setting count to 0\n",
current->pid);
#endif
- info->tty = NULL;
- info->flags &= ~ASYNC_NORMAL_ACTIVE;
- wake_up_interruptible(&info->open_wait);
+ info->port.tty = NULL;
+ info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
+ wake_up_interruptible(&info->port.open_wait);
} /* cy_hangup */
/*
for (port = cinfo->first_line; port < cinfo->first_line + nports;
port++) {
info = &cinfo->ports[port - cinfo->first_line];
+ tty_port_init(&info->port);
info->magic = CYCLADES_MAGIC;
info->card = cinfo;
info->line = port;
- info->flags = STD_COM_FLAGS;
- info->closing_wait = CLOSING_WAIT_DELAY;
- info->close_delay = 5 * HZ / 10;
- init_waitqueue_head(&info->open_wait);
- init_waitqueue_head(&info->close_wait);
+ info->port.closing_wait = CLOSING_WAIT_DELAY;
+ info->port.close_delay = 5 * HZ / 10;
+ info->port.flags = STD_COM_FLAGS;
init_completion(&info->shutdown_wait);
init_waitqueue_head(&info->delta_msr_wait);
info->cor3 = 0x08; /* _very_ small rcv threshold */
chip_number = (port - cinfo->first_line) / 4;
- if ((info->chip_rev = readb(cinfo->base_addr +
- (cy_chip_offset[chip_number] <<
- index) + (CyGFRCR << index))) >=
- CD1400_REV_J) {
+ info->chip_rev = readb(cinfo->base_addr +
+ (cy_chip_offset[chip_number] << index) +
+ (CyGFRCR << index));
+
+ if (info->chip_rev >= CD1400_REV_J) {
/* It is a CD1400 rev. J or later */
info->tbpr = baud_bpr_60[13]; /* Tx BPR */
info->tco = baud_co_60[13]; /* Tx CO */
/* Cy_ClrIntr is 0x1800 */
udelay(500L);
- for (chip_number = 0; chip_number < CyMAX_CHIPS_PER_CARD; chip_number++) {
+ for (chip_number = 0; chip_number < CyMAX_CHIPS_PER_CARD;
+ chip_number++) {
base_addr =
true_base_addr + (cy_chip_offset[chip_number] << index);
mdelay(1);
/* scan the address table probing for Cyclom-Y/ISA boards */
for (i = 0; i < NR_ISA_ADDRS; i++) {
unsigned int isa_address = cy_isa_addresses[i];
- if (isa_address == 0x0000) {
+ if (isa_address == 0x0000)
return nboard;
- }
/* probe for CD1400... */
- cy_isa_address = ioremap(isa_address, CyISA_Ywin);
+ cy_isa_address = ioremap_nocache(isa_address, CyISA_Ywin);
if (cy_isa_address == NULL) {
printk(KERN_ERR "Cyclom-Y/ISA: can't remap base "
"address\n");
return 0;
}
-static inline void __devinit cyz_fpga_copy(void __iomem *fpga, u8 *data,
+static inline void __devinit cyz_fpga_copy(void __iomem *fpga, const u8 *data,
unsigned int size)
{
for (; size > 0; size--) {
const char *name, const u32 mailbox, void __iomem *base,
void __iomem *fpga)
{
- void *ptr = fw->data;
- struct zfile_header *h = ptr;
- struct zfile_config *c, *cs;
- struct zfile_block *b, *bs;
+ const void *ptr = fw->data;
+ const struct zfile_header *h = ptr;
+ const struct zfile_config *c, *cs;
+ const struct zfile_block *b, *bs;
unsigned int a, tmp, len = fw->size;
#define BAD_FW KERN_ERR "Bad firmware: "
if (len < sizeof(*h)) {
if (mailbox != 0) {
/* set window to last 512K of RAM */
cy_writel(&ctl_addr->loc_addr_base, WIN_RAM + RAM_SIZE);
- //sleep(1);
for (tmp = base_addr; tmp < base_addr + RAM_SIZE; tmp++)
cy_writeb(tmp, 255);
/* set window to beginning of RAM */
cy_writel(&ctl_addr->loc_addr_base, WIN_RAM);
- //sleep(1);
}
retval = __cyz_load_fw(fw, "Cyclom-Z", mailbox, base_addr, NULL);
for (j = 0; j < cy_card[i].nports; j++) {
info = &cy_card[i].ports[j];
- if (info->count)
+ if (info->port.count)
size = sprintf(buf + len, "%3d %8lu %10lu %8lu "
"%10lu %8lu %9lu %6ld\n", info->line,
(cur_jifs - info->idle_stats.in_use) /
HZ, info->idle_stats.recv_bytes,
(cur_jifs - info->idle_stats.recv_idle)/
HZ, info->idle_stats.overruns,
- (long)info->tty->ldisc.num);
+ /* FIXME: double check locking */
+ (long)info->port.tty->ldisc.ops->num);
else
size = sprintf(buf + len, "%3d %8lu %10lu %8lu "
"%10lu %8lu %9lu %6ld\n",
del_timer_sync(&cyz_timerlist);
#endif /* CONFIG_CYZ_INTR */
- if ((e1 = tty_unregister_driver(cy_serial_driver)))
+ e1 = tty_unregister_driver(cy_serial_driver);
+ if (e1)
printk(KERN_ERR "failed to unregister Cyclades serial "
"driver(%d)\n", e1);
git.openpandora.org / pandora-kernel.git / blobdiff