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Diffstat (limited to 'drivers/char')
-rw-r--r--drivers/char/cyclades.c88
1 files changed, 39 insertions, 49 deletions
diff --git a/drivers/char/cyclades.c b/drivers/char/cyclades.c
index 46a15d24ce7..0634dd1c773 100644
--- a/drivers/char/cyclades.c
+++ b/drivers/char/cyclades.c
@@ -662,7 +662,7 @@
static void cy_throttle(struct tty_struct *tty);
static void cy_send_xchar(struct tty_struct *tty, char ch);
-#define IS_CYC_Z(card) ((card).num_chips == -1)
+#define IS_CYC_Z(card) ((card).num_chips == (unsigned int)-1)
#define Z_FPGA_CHECK(card) \
((readl(&((struct RUNTIME_9060 __iomem *) \
@@ -985,25 +985,23 @@ static void cyy_chip_rx(struct cyclades_card *cinfo, int chip,
{
struct cyclades_port *info;
struct tty_struct *tty;
- int char_count;
- int j, len, index = cinfo->bus_index;
- int save_xir, channel, save_car;
- char data;
+ int len, index = cinfo->bus_index;
+ u8 save_xir, channel, save_car, data, char_count;
#ifdef CY_DEBUG_INTERRUPTS
printk(KERN_DEBUG "cyy_interrupt: rcvd intr, chip %d\n", chip);
#endif
/* determine the channel & change to that context */
- save_xir = (u_char) readb(base_addr + (CyRIR << index));
- channel = (u_short) (save_xir & CyIRChannel);
+ save_xir = readb(base_addr + (CyRIR << index));
+ channel = save_xir & CyIRChannel;
info = &cinfo->ports[channel + chip * 4];
save_car = readb(base_addr + (CyCAR << index));
cy_writeb(base_addr + (CyCAR << index), save_xir);
/* if there is nowhere to put the data, discard it */
if (info->tty == NULL) {
- j = (readb(base_addr + (CyRIVR << index)) & CyIVRMask);
- if (j == CyIVRRxEx) { /* exception */
+ if ((readb(base_addr + (CyRIVR << index)) & CyIVRMask) ==
+ CyIVRRxEx) { /* exception */
data = readb(base_addr + (CyRDSR << index));
} else { /* normal character reception */
char_count = readb(base_addr + (CyRDCR << index));
@@ -1014,8 +1012,8 @@ static void cyy_chip_rx(struct cyclades_card *cinfo, int chip,
}
/* there is an open port for this data */
tty = info->tty;
- j = readb(base_addr + (CyRIVR << index)) & CyIVRMask;
- if (j == CyIVRRxEx) { /* exception */
+ if ((readb(base_addr + (CyRIVR << index)) & CyIVRMask) ==
+ CyIVRRxEx) { /* exception */
data = readb(base_addr + (CyRDSR << index));
/* For statistics only */
@@ -1116,13 +1114,12 @@ end:
cy_writeb(base_addr + (CyCAR << index), save_car);
}
-static void cyy_chip_tx(struct cyclades_card *cinfo, int chip,
+static void cyy_chip_tx(struct cyclades_card *cinfo, unsigned int chip,
void __iomem *base_addr)
{
struct cyclades_port *info;
- int char_count;
- int outch;
- int save_xir, channel, save_car, index = cinfo->bus_index;
+ int char_count, index = cinfo->bus_index;
+ u8 save_xir, channel, save_car, outch;
/* Since we only get here when the transmit buffer
is empty, we know we can always stuff a dozen
@@ -1132,8 +1129,8 @@ static void cyy_chip_tx(struct cyclades_card *cinfo, int chip,
#endif
/* determine the channel & change to that context */
- save_xir = (u_char) readb(base_addr + (CyTIR << index));
- channel = (u_short) (save_xir & CyIRChannel);
+ save_xir = readb(base_addr + (CyTIR << index));
+ channel = save_xir & CyIRChannel;
save_car = readb(base_addr + (CyCAR << index));
cy_writeb(base_addr + (CyCAR << index), save_xir);
@@ -1242,12 +1239,12 @@ static void cyy_chip_modem(struct cyclades_card *cinfo, int chip,
void __iomem *base_addr)
{
struct cyclades_port *info;
- int mdm_change, mdm_status;
- int save_xir, channel, save_car, index = cinfo->bus_index;
+ int index = cinfo->bus_index;
+ u8 save_xir, channel, save_car, mdm_change, mdm_status;
/* determine the channel & change to that context */
- save_xir = (u_char) readb(base_addr + (CyMIR << index));
- channel = (u_short) (save_xir & CyIRChannel);
+ save_xir = readb(base_addr + (CyMIR << index));
+ channel = save_xir & CyIRChannel;
info = &cinfo->ports[channel + chip * 4];
save_car = readb(base_addr + (CyCAR << index));
cy_writeb(base_addr + (CyCAR << index), save_xir);
@@ -1320,10 +1317,8 @@ static irqreturn_t cyy_interrupt(int irq, void *dev_id)
int status;
struct cyclades_card *cinfo = dev_id;
void __iomem *base_addr, *card_base_addr;
- int chip;
+ unsigned int chip, too_many, had_work;
int index;
- int too_many;
- int had_work;
if (unlikely(cinfo == NULL)) {
#ifdef CY_DEBUG_INTERRUPTS
@@ -1422,7 +1417,7 @@ cyz_issue_cmd(struct cyclades_card *cinfo,
struct ZFW_CTRL __iomem *zfw_ctrl;
struct BOARD_CTRL __iomem *board_ctrl;
__u32 __iomem *pci_doorbell;
- int index;
+ unsigned int index;
firm_id = cinfo->base_addr + ID_ADDRESS;
if (!ISZLOADED(*cinfo)) {
@@ -1447,13 +1442,12 @@ cyz_issue_cmd(struct cyclades_card *cinfo,
return 0;
} /* cyz_issue_cmd */
-static void
-cyz_handle_rx(struct cyclades_port *info, struct CH_CTRL __iomem *ch_ctrl,
+static void cyz_handle_rx(struct cyclades_port *info,
struct BUF_CTRL __iomem *buf_ctrl)
{
struct cyclades_card *cinfo = info->card;
struct tty_struct *tty = info->tty;
- int char_count;
+ unsigned int char_count;
int len;
#ifdef BLOCKMOVE
unsigned char *buf;
@@ -1526,7 +1520,7 @@ cyz_handle_rx(struct cyclades_port *info, struct CH_CTRL __iomem *ch_ctrl,
char_count = rx_put - rx_get;
else
char_count = rx_put - rx_get + rx_bufsize;
- if (char_count >= (int)readl(&buf_ctrl->rx_threshold) &&
+ if (char_count >= readl(&buf_ctrl->rx_threshold) &&
!timer_pending(&cyz_rx_full_timer[
info->line]))
mod_timer(&cyz_rx_full_timer[info->line],
@@ -1540,14 +1534,13 @@ cyz_handle_rx(struct cyclades_port *info, struct CH_CTRL __iomem *ch_ctrl,
}
}
-static void
-cyz_handle_tx(struct cyclades_port *info, struct CH_CTRL __iomem *ch_ctrl,
+static void cyz_handle_tx(struct cyclades_port *info,
struct BUF_CTRL __iomem *buf_ctrl)
{
struct cyclades_card *cinfo = info->card;
struct tty_struct *tty = info->tty;
- char data;
- int char_count;
+ u8 data;
+ unsigned int char_count;
#ifdef BLOCKMOVE
int small_count;
#endif
@@ -1708,7 +1701,7 @@ static void cyz_handle_cmd(struct cyclades_card *cinfo)
printk(KERN_DEBUG "cyz_interrupt: rcvd intr, card %d, "
"port %ld\n", info->card, channel);
#endif
- cyz_handle_rx(info, ch_ctrl, buf_ctrl);
+ cyz_handle_rx(info, buf_ctrl);
break;
case C_CM_TXBEMPTY:
case C_CM_TXLOWWM:
@@ -1718,7 +1711,7 @@ static void cyz_handle_cmd(struct cyclades_card *cinfo)
printk(KERN_DEBUG "cyz_interrupt: xmit intr, card %d, "
"port %ld\n", info->card, channel);
#endif
- cyz_handle_tx(info, ch_ctrl, buf_ctrl);
+ cyz_handle_tx(info, buf_ctrl);
break;
#endif /* CONFIG_CYZ_INTR */
case C_CM_FATAL:
@@ -1787,10 +1780,9 @@ static void cyz_poll(unsigned long arg)
struct FIRM_ID __iomem *firm_id;
struct ZFW_CTRL __iomem *zfw_ctrl;
struct BOARD_CTRL __iomem *board_ctrl;
- struct CH_CTRL __iomem *ch_ctrl;
struct BUF_CTRL __iomem *buf_ctrl;
unsigned long expires = jiffies + HZ;
- int card, port;
+ unsigned int port, card;
for (card = 0; card < NR_CARDS; card++) {
cinfo = &cy_card[card];
@@ -1817,12 +1809,11 @@ static void cyz_poll(unsigned long arg)
for (port = 0; port < cinfo->nports; port++) {
info = &cinfo->ports[port];
tty = info->tty;
- ch_ctrl = &(zfw_ctrl->ch_ctrl[port]);
buf_ctrl = &(zfw_ctrl->buf_ctrl[port]);
if (!info->throttle)
- cyz_handle_rx(info, ch_ctrl, buf_ctrl);
- cyz_handle_tx(info, ch_ctrl, buf_ctrl);
+ cyz_handle_rx(info, buf_ctrl);
+ cyz_handle_tx(info, buf_ctrl);
}
/* poll every 'cyz_polling_cycle' period */
expires = jiffies + cyz_polling_cycle;
@@ -2385,11 +2376,11 @@ block_til_ready(struct tty_struct *tty, struct file *filp,
static int cy_open(struct tty_struct *tty, struct file *filp)
{
struct cyclades_port *info;
- unsigned int i;
- int retval, line;
+ unsigned int i, line;
+ int retval;
line = tty->index;
- if ((line < 0) || (NR_PORTS <= line)) {
+ if ((tty->index < 0) || (NR_PORTS <= line)) {
return -ENODEV;
}
for (i = 0; i < NR_CARDS; i++)
@@ -4359,9 +4350,9 @@ static int __devinit cy_init_card(struct cyclades_card *cinfo)
{
struct cyclades_port *info;
u32 uninitialized_var(mailbox);
- unsigned int nports;
+ unsigned int nports, port;
unsigned short chip_number;
- int uninitialized_var(index), port;
+ int uninitialized_var(index);
spin_lock_init(&cinfo->card_lock);
@@ -5127,7 +5118,7 @@ static int __devinit cy_pci_probe(struct pci_dev *pdev,
}
}
#endif /* CONFIG_CYZ_INTR */
- cy_card[card_no].num_chips = -1;
+ cy_card[card_no].num_chips = (unsigned int)-1;
}
/* set cy_card */
@@ -5387,7 +5378,7 @@ err:
static void __exit cy_cleanup_module(void)
{
struct cyclades_card *card;
- int i, e1;
+ unsigned int i, e1;
#ifndef CONFIG_CYZ_INTR
del_timer_sync(&cyz_timerlist);
@@ -5415,8 +5406,7 @@ static void __exit cy_cleanup_module(void)
#endif /* CONFIG_CYZ_INTR */
)
free_irq(card->irq, card);
- for (e1 = card->first_line;
- e1 < card->first_line +
+ for (e1 = card->first_line; e1 < card->first_line +
card->nports; e1++)
tty_unregister_device(cy_serial_driver, e1);
kfree(card->ports);
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-31 18:54:53 +0000