From b1d984cf7d6b7d4e395f1aa6a0a4d3d1ecf21495 Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Thu, 7 Mar 2013 13:12:36 +0100 Subject: [PATCH] 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 Signed-off-by: Greg Kroah-Hartman --- 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 50f56f3..2ae378c 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, @@ -2721,7 +2716,7 @@ 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; @@ -2846,7 +2841,7 @@ startup(struct e100_serial * info) #endif /* CONFIG_SVINTO_SIM */ - info->flags |= ASYNC_INITIALIZED; + info->port.flags |= ASYNC_INITIALIZED; local_irq_restore(flags); return 0; @@ -2891,7 +2886,7 @@ 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 @@ -2922,7 +2917,7 @@ 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); } @@ -2947,7 +2942,7 @@ 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 = @@ -3397,7 +3392,7 @@ 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; @@ -3424,9 +3419,9 @@ 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; } @@ -3440,16 +3435,16 @@ 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); @@ -3789,12 +3784,12 @@ 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 @@ -3815,7 +3810,7 @@ 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 @@ -3836,7 +3831,7 @@ 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); @@ -3931,7 +3926,7 @@ 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); } @@ -3955,11 +3950,11 @@ 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; @@ -3974,7 +3969,7 @@ 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; } @@ -4010,9 +4005,9 @@ 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; @@ -4021,7 +4016,7 @@ 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)) { @@ -4047,7 +4042,7 @@ 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; } @@ -4088,17 +4083,17 @@ 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; @@ -4198,7 +4193,7 @@ 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); } @@ -4447,7 +4442,6 @@ 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 */ -- 2.7.4