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Message-Id: <1362658360-26629-12-git-send-email-jslaby@suse.cz>
Date: Thu, 7 Mar 2013 13:12:36 +0100
From: Jiri Slaby <jslaby@...e.cz>
To: gregkh@...uxfoundation.org
Cc: peter@...leysoftware.com, jirislaby@...il.com,
linux-kernel@...r.kernel.org
Subject: [PATCH 12/16] crisv10: use flags from tty_port
First, remove STD_FLAGS as the value, or its subvalues
(ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST) is not tested anywhere --
there is no point to initialize flags to that. Second, use flags
member from tty_port when we have it now. So that we do not waste
space.
Signed-off-by: Jiri Slaby <jslaby@...e.cz>
---
drivers/tty/serial/crisv10.c | 64 ++++++++++++++++++++------------------------
drivers/tty/serial/crisv10.h | 2 --
2 files changed, 29 insertions(+), 37 deletions(-)
diff --git a/drivers/tty/serial/crisv10.c b/drivers/tty/serial/crisv10.c
index 1ace22c..ec2dcc7 100644
--- a/drivers/tty/serial/crisv10.c
+++ b/drivers/tty/serial/crisv10.c
@@ -169,7 +169,6 @@ static int get_lsr_info(struct e100_serial *info, unsigned int *value);
#define DEF_BAUD 115200 /* 115.2 kbit/s */
-#define STD_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST)
#define DEF_RX 0x20 /* or SERIAL_CTRL_W >> 8 */
/* Default value of tx_ctrl register: has txd(bit 7)=1 (idle) as default */
#define DEF_TX 0x80 /* or SERIAL_CTRL_B */
@@ -246,7 +245,6 @@ static struct e100_serial rs_table[] = {
.ifirstadr = R_DMA_CH7_FIRST,
.icmdadr = R_DMA_CH7_CMD,
.idescradr = R_DMA_CH7_DESCR,
- .flags = STD_FLAGS,
.rx_ctrl = DEF_RX,
.tx_ctrl = DEF_TX,
.iseteop = 2,
@@ -300,7 +298,6 @@ static struct e100_serial rs_table[] = {
.ifirstadr = R_DMA_CH9_FIRST,
.icmdadr = R_DMA_CH9_CMD,
.idescradr = R_DMA_CH9_DESCR,
- .flags = STD_FLAGS,
.rx_ctrl = DEF_RX,
.tx_ctrl = DEF_TX,
.iseteop = 3,
@@ -356,7 +353,6 @@ static struct e100_serial rs_table[] = {
.ifirstadr = R_DMA_CH3_FIRST,
.icmdadr = R_DMA_CH3_CMD,
.idescradr = R_DMA_CH3_DESCR,
- .flags = STD_FLAGS,
.rx_ctrl = DEF_RX,
.tx_ctrl = DEF_TX,
.iseteop = 0,
@@ -410,7 +406,6 @@ static struct e100_serial rs_table[] = {
.ifirstadr = R_DMA_CH5_FIRST,
.icmdadr = R_DMA_CH5_CMD,
.idescradr = R_DMA_CH5_DESCR,
- .flags = STD_FLAGS,
.rx_ctrl = DEF_RX,
.tx_ctrl = DEF_TX,
.iseteop = 1,
@@ -2719,7 +2714,7 @@ startup(struct e100_serial * info)
/* if it was already initialized, skip this */
- if (info->flags & ASYNC_INITIALIZED) {
+ if (info->port.flags & ASYNC_INITIALIZED) {
local_irq_restore(flags);
free_page(xmit_page);
return 0;
@@ -2844,7 +2839,7 @@ startup(struct e100_serial * info)
#endif /* CONFIG_SVINTO_SIM */
- info->flags |= ASYNC_INITIALIZED;
+ info->port.flags |= ASYNC_INITIALIZED;
local_irq_restore(flags);
return 0;
@@ -2889,7 +2884,7 @@ shutdown(struct e100_serial * info)
#endif /* CONFIG_SVINTO_SIM */
- if (!(info->flags & ASYNC_INITIALIZED))
+ if (!(info->port.flags & ASYNC_INITIALIZED))
return;
#ifdef SERIAL_DEBUG_OPEN
@@ -2920,7 +2915,7 @@ shutdown(struct e100_serial * info)
if (info->port.tty)
set_bit(TTY_IO_ERROR, &info->port.tty->flags);
- info->flags &= ~ASYNC_INITIALIZED;
+ info->port.flags &= ~ASYNC_INITIALIZED;
local_irq_restore(flags);
}
@@ -2945,7 +2940,7 @@ change_speed(struct e100_serial *info)
/* possibly, the tx/rx should be disabled first to do this safely */
/* change baud-rate and write it to the hardware */
- if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) {
+ if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST) {
/* Special baudrate */
u32 mask = 0xFF << (info->line*8); /* Each port has 8 bits */
unsigned long alt_source =
@@ -3395,7 +3390,7 @@ get_serial_info(struct e100_serial * info,
tmp.line = info->line;
tmp.port = (int)info->ioport;
tmp.irq = info->irq;
- tmp.flags = info->flags;
+ tmp.flags = info->port.flags;
tmp.baud_base = info->baud_base;
tmp.close_delay = info->close_delay;
tmp.closing_wait = info->closing_wait;
@@ -3422,9 +3417,9 @@ set_serial_info(struct e100_serial *info,
if ((new_serial.type != info->type) ||
(new_serial.close_delay != info->close_delay) ||
((new_serial.flags & ~ASYNC_USR_MASK) !=
- (info->flags & ~ASYNC_USR_MASK)))
+ (info->port.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));
goto check_and_exit;
}
@@ -3438,16 +3433,16 @@ set_serial_info(struct e100_serial *info,
*/
info->baud_base = new_serial.baud_base;
- info->flags = ((info->flags & ~ASYNC_FLAGS) |
+ info->port.flags = ((info->port.flags & ~ASYNC_FLAGS) |
(new_serial.flags & ASYNC_FLAGS));
info->custom_divisor = new_serial.custom_divisor;
info->type = new_serial.type;
info->close_delay = new_serial.close_delay;
info->closing_wait = new_serial.closing_wait;
- info->port.low_latency = (info->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
+ info->port.low_latency = (info->port.flags & ASYNC_LOW_LATENCY) ? 1 : 0;
check_and_exit:
- if (info->flags & ASYNC_INITIALIZED) {
+ if (info->port.flags & ASYNC_INITIALIZED) {
change_speed(info);
} else
retval = startup(info);
@@ -3787,12 +3782,12 @@ rs_close(struct tty_struct *tty, struct file * filp)
local_irq_restore(flags);
return;
}
- info->flags |= ASYNC_CLOSING;
+ info->port.flags |= ASYNC_CLOSING;
/*
* Save the termios structure, since this port may have
* separate termios for callout and dialin.
*/
- if (info->flags & ASYNC_NORMAL_ACTIVE)
+ if (info->port.flags & ASYNC_NORMAL_ACTIVE)
info->normal_termios = tty->termios;
/*
* Now we wait for the transmit buffer to clear; and we notify
@@ -3813,7 +3808,7 @@ rs_close(struct tty_struct *tty, struct file * filp)
e100_disable_rx(info);
e100_disable_rx_irq(info);
- if (info->flags & ASYNC_INITIALIZED) {
+ if (info->port.flags & ASYNC_INITIALIZED) {
/*
* Before we drop DTR, make sure the UART transmitter
* has completely drained; this is especially
@@ -3834,7 +3829,7 @@ rs_close(struct tty_struct *tty, struct file * filp)
schedule_timeout_interruptible(info->close_delay);
wake_up_interruptible(&info->open_wait);
}
- info->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
+ info->port.flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
wake_up_interruptible(&info->close_wait);
local_irq_restore(flags);
@@ -3929,7 +3924,7 @@ rs_hangup(struct tty_struct *tty)
shutdown(info);
info->event = 0;
info->count = 0;
- info->flags &= ~ASYNC_NORMAL_ACTIVE;
+ info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
info->port.tty = NULL;
wake_up_interruptible(&info->open_wait);
}
@@ -3953,11 +3948,11 @@ block_til_ready(struct tty_struct *tty, struct file * filp,
* until it's done, and then try again.
*/
if (tty_hung_up_p(filp) ||
- (info->flags & ASYNC_CLOSING)) {
+ (info->port.flags & ASYNC_CLOSING)) {
wait_event_interruptible_tty(tty, info->close_wait,
- !(info->flags & ASYNC_CLOSING));
+ !(info->port.flags & ASYNC_CLOSING));
#ifdef SERIAL_DO_RESTART
- if (info->flags & ASYNC_HUP_NOTIFY)
+ if (info->port.flags & ASYNC_HUP_NOTIFY)
return -EAGAIN;
else
return -ERESTARTSYS;
@@ -3972,7 +3967,7 @@ block_til_ready(struct tty_struct *tty, struct file * filp,
*/
if ((filp->f_flags & O_NONBLOCK) ||
(tty->flags & (1 << TTY_IO_ERROR))) {
- info->flags |= ASYNC_NORMAL_ACTIVE;
+ info->port.flags |= ASYNC_NORMAL_ACTIVE;
return 0;
}
@@ -4008,9 +4003,9 @@ block_til_ready(struct tty_struct *tty, struct file * filp,
local_irq_restore(flags);
set_current_state(TASK_INTERRUPTIBLE);
if (tty_hung_up_p(filp) ||
- !(info->flags & ASYNC_INITIALIZED)) {
+ !(info->port.flags & ASYNC_INITIALIZED)) {
#ifdef SERIAL_DO_RESTART
- if (info->flags & ASYNC_HUP_NOTIFY)
+ if (info->port.flags & ASYNC_HUP_NOTIFY)
retval = -EAGAIN;
else
retval = -ERESTARTSYS;
@@ -4019,7 +4014,7 @@ block_til_ready(struct tty_struct *tty, struct file * filp,
#endif
break;
}
- if (!(info->flags & ASYNC_CLOSING) && do_clocal)
+ if (!(info->port.flags & ASYNC_CLOSING) && do_clocal)
/* && (do_clocal || DCD_IS_ASSERTED) */
break;
if (signal_pending(current)) {
@@ -4045,7 +4040,7 @@ block_til_ready(struct tty_struct *tty, struct file * filp,
#endif
if (retval)
return retval;
- info->flags |= ASYNC_NORMAL_ACTIVE;
+ info->port.flags |= ASYNC_NORMAL_ACTIVE;
return 0;
}
@@ -4086,17 +4081,17 @@ rs_open(struct tty_struct *tty, struct file * filp)
tty->driver_data = info;
info->port.tty = tty;
- info->port.low_latency = !!(info->flags & ASYNC_LOW_LATENCY);
+ info->port.low_latency = !!(info->port.flags & ASYNC_LOW_LATENCY);
/*
* If the port is in the middle of closing, bail out now
*/
if (tty_hung_up_p(filp) ||
- (info->flags & ASYNC_CLOSING)) {
+ (info->port.flags & ASYNC_CLOSING)) {
wait_event_interruptible_tty(tty, info->close_wait,
- !(info->flags & ASYNC_CLOSING));
+ !(info->port.flags & ASYNC_CLOSING));
#ifdef SERIAL_DO_RESTART
- return ((info->flags & ASYNC_HUP_NOTIFY) ?
+ return ((info->port.flags & ASYNC_HUP_NOTIFY) ?
-EAGAIN : -ERESTARTSYS);
#else
return -EAGAIN;
@@ -4196,7 +4191,7 @@ rs_open(struct tty_struct *tty, struct file * filp)
return retval;
}
- if ((info->count == 1) && (info->flags & ASYNC_SPLIT_TERMIOS)) {
+ if ((info->count == 1) && (info->port.flags & ASYNC_SPLIT_TERMIOS)) {
tty->termios = info->normal_termios;
change_speed(info);
}
@@ -4445,7 +4440,6 @@ static int __init rs_init(void)
info->forced_eop = 0;
info->baud_base = DEF_BAUD_BASE;
info->custom_divisor = 0;
- info->flags = 0;
info->close_delay = 5*HZ/10;
info->closing_wait = 30*HZ;
info->x_char = 0;
diff --git a/drivers/tty/serial/crisv10.h b/drivers/tty/serial/crisv10.h
index ea0beb4..7146ed2 100644
--- a/drivers/tty/serial/crisv10.h
+++ b/drivers/tty/serial/crisv10.h
@@ -53,8 +53,6 @@ struct e100_serial {
volatile u8 *icmdadr; /* adr to R_DMA_CHx_CMD */
volatile u32 *idescradr; /* adr to R_DMA_CHx_DESCR */
- int flags; /* defined in tty.h */
-
u8 rx_ctrl; /* shadow for R_SERIALx_REC_CTRL */
u8 tx_ctrl; /* shadow for R_SERIALx_TR_CTRL */
u8 iseteop; /* bit number for R_SET_EOP for the input dma */
--
1.8.1.4
--
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