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linux/debian/patches/bugfix/m68k/2.6.27/atari-scc-gs-fix.diff

184 lines
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---
drivers/char/atari_scc.c | 59 +++++++++++++++++++++++------------------------
1 file changed, 30 insertions(+), 29 deletions(-)
--- a/drivers/char/atari_scc.c
+++ b/drivers/char/atari_scc.c
@@ -269,8 +269,8 @@ static void scc_init_portstructs(void)
#ifdef NEW_WRITE_LOCKING
port->gs.port_write_sem = MUTEX;
#endif
- init_waitqueue_head(&port->gs.open_wait);
- init_waitqueue_head(&port->gs.close_wait);
+ init_waitqueue_head(&port->gs.port.open_wait);
+ init_waitqueue_head(&port->gs.port.close_wait);
}
}
@@ -595,7 +595,7 @@ static irqreturn_t scc_rx_int(int irq, v
{
unsigned char ch;
struct scc_port *port = data;
- struct tty_struct *tty = port->gs.tty;
+ struct tty_struct *tty = port->gs.port.tty;
SCC_ACCESS_INIT(port);
pr_debug("SCC: rx_int ...\n");
@@ -638,7 +638,7 @@ static irqreturn_t scc_rx_int(int irq, v
static irqreturn_t scc_spcond_int(int irq, void *data)
{
struct scc_port *port = data;
- struct tty_struct *tty = port->gs.tty;
+ struct tty_struct *tty = port->gs.port.tty;
unsigned char stat, ch, err;
int int_pending_mask = port->channel == CHANNEL_A ? IPR_A_RX : IPR_B_RX;
@@ -705,7 +705,7 @@ static irqreturn_t scc_tx_int(int irq, v
SCC_ACCESS_INIT(port);
pr_debug("SCC: tx_int irq %d port %p ...\n", irq, data);
- if (!port->gs.tty) {
+ if (!port->gs.port.tty) {
pr_warning("scc_tx_int with NULL tty!\n");
SCCmod(INT_AND_DMA_REG, ~IDR_TX_INT_ENAB, 0);
SCCwrite(COMMAND_REG, CR_TX_PENDING_RESET);
@@ -717,8 +717,9 @@ static irqreturn_t scc_tx_int(int irq, v
pr_debug("SCC: tx_int writing char %c\n", port->x_char);
SCCwrite(TX_DATA_REG, port->x_char);
port->x_char = 0;
- } else if ((port->gs.xmit_cnt <= 0) || port->gs.tty->stopped ||
- port->gs.tty->hw_stopped) {
+ } else if ((port->gs.xmit_cnt <= 0) ||
+ port->gs.port.tty->stopped ||
+ port->gs.port.tty->hw_stopped) {
pr_debug("SCC: nothing to do!\n");
break;
} else {
@@ -732,18 +733,18 @@ static irqreturn_t scc_tx_int(int irq, v
break;
}
}
- if ((port->gs.xmit_cnt <= 0) || port->gs.tty->stopped ||
- port->gs.tty->hw_stopped) {
+ if ((port->gs.xmit_cnt <= 0) || port->gs.port.tty->stopped ||
+ port->gs.port.tty->hw_stopped) {
pr_debug("SCC: nothing to do, disabling int\n");
/* disable tx interrupts */
SCCmod(INT_AND_DMA_REG, ~IDR_TX_INT_ENAB, 0);
/* disable tx_int on next tx underrun? */
SCCwrite(COMMAND_REG, CR_TX_PENDING_RESET);
- port->gs.flags &= ~GS_TX_INTEN;
+ port->gs.port.flags &= ~GS_TX_INTEN;
}
- if (port->gs.tty && port->gs.xmit_cnt <= port->gs.wakeup_chars) {
+ if (port->gs.port.tty && port->gs.xmit_cnt <= port->gs.wakeup_chars) {
pr_debug("SCC: waking up tty!\n");
- tty_wakeup(port->gs.tty);
+ tty_wakeup(port->gs.port.tty);
}
SCCwrite_NB(COMMAND_REG, CR_HIGHEST_IUS_RESET);
@@ -766,14 +767,14 @@ static irqreturn_t scc_stat_int(int irq,
if (changed & SR_DCD) {
port->c_dcd = !!(sr & SR_DCD);
- if (!(port->gs.flags & ASYNC_CHECK_CD))
+ if (!(port->gs.port.flags & ASYNC_CHECK_CD))
; /* Don't report DCD changes */
else if (port->c_dcd) {
/* Are we blocking in open? */
- wake_up_interruptible(&port->gs.open_wait);
+ wake_up_interruptible(&port->gs.port.open_wait);
} else {
- if (port->gs.tty)
- tty_hangup(port->gs.tty);
+ if (port->gs.port.tty)
+ tty_hangup(port->gs.port.tty);
}
}
@@ -799,7 +800,7 @@ static void scc_disable_tx_interrupts(vo
pr_debug("SCC: disable_tx_int ...\n");
local_irq_save(flags);
SCCmod(INT_AND_DMA_REG, ~IDR_TX_INT_ENAB, 0);
- port->gs.flags &= ~GS_TX_INTEN;
+ port->gs.port.flags &= ~GS_TX_INTEN;
local_irq_restore(flags);
pr_debug("SCC: disable_tx_int done!\n");
}
@@ -866,8 +867,8 @@ static void scc_shutdown_port(void *ptr)
struct scc_port *port = ptr;
pr_debug("SCC: shutdown_port ...\n");
- port->gs.flags &= ~GS_ACTIVE;
- if (port->gs.tty && port->gs.tty->termios->c_cflag & HUPCL)
+ port->gs.port.flags &= ~GS_ACTIVE;
+ if (port->gs.port.tty && port->gs.port.tty->termios->c_cflag & HUPCL)
scc_setsignals(port, 0, 0);
pr_debug("SCC: shutdown_port done!\n");
}
@@ -884,12 +885,12 @@ static int scc_set_real_termios(void *pt
SCC_ACCESS_INIT(port);
- if (!port->gs.tty || !port->gs.tty->termios)
+ if (!port->gs.port.tty || !port->gs.port.tty->termios)
return 0;
channel = port->channel;
pr_debug("SCC: termios for channel %u\n", channel);
- cflag = port->gs.tty->termios->c_cflag;
+ cflag = port->gs.port.tty->termios->c_cflag;
baud = port->gs.baud;
baudbits = cflag & CBAUD;
chsize = (cflag & CSIZE) >> 4;
@@ -907,9 +908,9 @@ static int scc_set_real_termios(void *pt
}
if (cflag & CLOCAL)
- port->gs.flags &= ~ASYNC_CHECK_CD;
+ port->gs.port.flags &= ~ASYNC_CHECK_CD;
else
- port->gs.flags |= ASYNC_CHECK_CD;
+ port->gs.port.flags |= ASYNC_CHECK_CD;
/* calculate brgval for Atari; enable direct modes! */
@@ -1207,7 +1208,7 @@ static int scc_open(struct tty_struct *t
return -ENODEV;
pr_debug("SCC: open port ...\n");
- if (!(port->gs.flags & ASYNC_INITIALIZED)) {
+ if (!(port->gs.port.flags & ASYNC_INITIALIZED)) {
pr_debug("SCC: init port ...\n");
local_irq_save(flags);
@@ -1232,22 +1233,22 @@ static int scc_open(struct tty_struct *t
}
tty->driver_data = port;
- port->gs.tty = tty;
- port->gs.count++;
+ port->gs.port.tty = tty;
+ port->gs.port.count++;
pr_debug(KERN_WARNING "SCC: gs init port ...\n");
retval = gs_init_port(&port->gs);
if (retval) {
- port->gs.count--;
+ port->gs.port.count--;
return retval;
}
pr_debug(KERN_WARNING "SCC: gs init port done!\n");
- port->gs.flags |= GS_ACTIVE;
+ port->gs.port.flags |= GS_ACTIVE;
pr_debug(KERN_WARNING "SCC: gs wait ready ...\n");
retval = gs_block_til_ready(port, filp);
pr_debug(KERN_WARNING "SCC: gs wait ready done!\n");
if (retval) {
- port->gs.count--;
+ port->gs.port.count--;
return retval;
}
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