From 4982d6b37a5ccebe6c2af79970c7a15c1939243a Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Wed, 16 Jul 2008 21:55:11 +0100 Subject: [PATCH] esp: use tty_port Switch esp to use the new tty_port structures Signed-off-by: Alan Cox Signed-off-by: Linus Torvalds --- drivers/char/esp.c | 272 +++++++++++++++++++-------------------- include/linux/hayesesp.h | 9 +- 2 files changed, 138 insertions(+), 143 deletions(-) diff --git a/drivers/char/esp.c b/drivers/char/esp.c index 84840ba13ff..2eaf09f93e3 100644 --- a/drivers/char/esp.c +++ b/drivers/char/esp.c @@ -128,9 +128,9 @@ static struct tty_driver *esp_driver; #if defined(MODULE) && defined(SERIAL_DEBUG_MCOUNT) #define DBG_CNT(s) printk(KERN_DEBUG "(%s): [%x] refc=%d, serc=%d, ttyc=%d -> %s\n", \ - tty->name, info->flags, \ + tty->name, info->port.flags, \ serial_driver.refcount, \ - info->count, tty->count, s) + info->port.count, tty->count, s) #else #define DBG_CNT(s) #endif @@ -172,13 +172,13 @@ static inline int serial_paranoia_check(struct esp_struct *info, static inline unsigned int serial_in(struct esp_struct *info, int offset) { - return inb(info->port + offset); + return inb(info->io_port + offset); } static inline void serial_out(struct esp_struct *info, int offset, unsigned char value) { - outb(value, info->port+offset); + outb(value, info->io_port+offset); } /* @@ -273,7 +273,7 @@ static inline void release_pio_buffer(struct esp_pio_buffer *buf) static inline void receive_chars_pio(struct esp_struct *info, int num_bytes) { - struct tty_struct *tty = info->tty; + struct tty_struct *tty = info->port.tty; int i; struct esp_pio_buffer *pio_buf; struct esp_pio_buffer *err_buf; @@ -295,7 +295,7 @@ static inline void receive_chars_pio(struct esp_struct *info, int num_bytes) for (i = 0; i < num_bytes - 1; i += 2) { *((unsigned short *)(pio_buf->data + i)) = - inw(info->port + UART_ESI_RX); + inw(info->io_port + UART_ESI_RX); err_buf->data[i] = serial_in(info, UART_ESI_RWS); err_buf->data[i + 1] = (err_buf->data[i] >> 3) & status_mask; err_buf->data[i] &= status_mask; @@ -308,7 +308,7 @@ static inline void receive_chars_pio(struct esp_struct *info, int num_bytes) } /* make sure everything is still ok since interrupts were enabled */ - tty = info->tty; + tty = info->port.tty; if (!tty) { release_pio_buffer(pio_buf); @@ -325,7 +325,7 @@ static inline void receive_chars_pio(struct esp_struct *info, int num_bytes) if (err_buf->data[i] & 0x04) { flag = TTY_BREAK; - if (info->flags & ASYNC_SAK) + if (info->port.flags & ASYNC_SAK) do_SAK(tty); } else if (err_buf->data[i] & 0x02) flag = TTY_FRAME; @@ -370,7 +370,7 @@ static void receive_chars_dma(struct esp_struct *info, int num_bytes) static inline void receive_chars_dma_done(struct esp_struct *info, int status) { - struct tty_struct *tty = info->tty; + struct tty_struct *tty = info->port.tty; int num_bytes; unsigned long flags; @@ -396,7 +396,7 @@ static inline void receive_chars_dma_done(struct esp_struct *info, if (status & 0x10) { statflag = TTY_BREAK; (info->icount.brk)++; - if (info->flags & ASYNC_SAK) + if (info->port.flags & ASYNC_SAK) do_SAK(tty); } else if (status & 0x08) { statflag = TTY_FRAME; @@ -451,7 +451,7 @@ static inline void transmit_chars_pio(struct esp_struct *info, for (i = 0; i < space_avail - 1; i += 2) { outw(*((unsigned short *)(pio_buf->data + i)), - info->port + UART_ESI_TX); + info->io_port + UART_ESI_TX); } if (space_avail & 0x0001) @@ -470,8 +470,8 @@ static inline void transmit_chars_pio(struct esp_struct *info, } if (info->xmit_cnt < WAKEUP_CHARS) { - if (info->tty) - tty_wakeup(info->tty); + if (info->port.tty) + tty_wakeup(info->port.tty); #ifdef SERIAL_DEBUG_INTR printk("THRE..."); @@ -507,8 +507,8 @@ static inline void transmit_chars_dma(struct esp_struct *info, int num_bytes) info->xmit_tail = (info->xmit_tail + dma_bytes) & (ESP_XMIT_SIZE - 1); if (info->xmit_cnt < WAKEUP_CHARS) { - if (info->tty) - tty_wakeup(info->tty); + if (info->port.tty) + tty_wakeup(info->port.tty); #ifdef SERIAL_DEBUG_INTR printk("THRE..."); @@ -575,18 +575,18 @@ static void check_modem_status(struct esp_struct *info) wake_up_interruptible(&info->delta_msr_wait); } - if ((info->flags & ASYNC_CHECK_CD) && (status & UART_MSR_DDCD)) { + if ((info->port.flags & ASYNC_CHECK_CD) && (status & UART_MSR_DDCD)) { #if (defined(SERIAL_DEBUG_OPEN) || defined(SERIAL_DEBUG_INTR)) printk("ttys%d CD now %s...", info->line, (status & UART_MSR_DCD) ? "on" : "off"); #endif if (status & UART_MSR_DCD) - wake_up_interruptible(&info->open_wait); + wake_up_interruptible(&info->port.open_wait); else { #ifdef SERIAL_DEBUG_OPEN printk("scheduling hangup..."); #endif - tty_hangup(info->tty); + tty_hangup(info->port.tty); } } } @@ -609,7 +609,7 @@ static irqreturn_t rs_interrupt_single(int irq, void *dev_id) spin_lock(&info->lock); - if (!info->tty) { + if (!info->port.tty) { spin_unlock(&info->lock); return IRQ_NONE; } @@ -647,7 +647,7 @@ static irqreturn_t rs_interrupt_single(int irq, void *dev_id) num_bytes = serial_in(info, UART_ESI_STAT1) << 8; num_bytes |= serial_in(info, UART_ESI_STAT2); - num_bytes = tty_buffer_request_room(info->tty, num_bytes); + num_bytes = tty_buffer_request_room(info->port.tty, num_bytes); if (num_bytes) { if (dma_bytes || @@ -661,7 +661,7 @@ static irqreturn_t rs_interrupt_single(int irq, void *dev_id) if (!(info->stat_flags & (ESP_STAT_DMA_RX | ESP_STAT_DMA_TX)) && (scratch & 0x02) && (info->IER & UART_IER_THRI)) { - if ((info->xmit_cnt <= 0) || info->tty->stopped) { + if ((info->xmit_cnt <= 0) || info->port.tty->stopped) { info->IER &= ~UART_IER_THRI; serial_out(info, UART_ESI_CMD1, ESI_SET_SRV_MASK); serial_out(info, UART_ESI_CMD2, info->IER); @@ -782,7 +782,7 @@ static int startup(struct esp_struct *info) spin_lock_irqsave(&info->lock, flags); - if (info->flags & ASYNC_INITIALIZED) + if (info->port.flags & ASYNC_INITIALIZED) goto out; if (!info->xmit_buf) { @@ -806,7 +806,7 @@ static int startup(struct esp_struct *info) num_chars |= serial_in(info, UART_ESI_STAT2); while (num_chars > 1) { - inw(info->port + UART_ESI_RX); + inw(info->io_port + UART_ESI_RX); num_chars -= 2; } @@ -834,9 +834,9 @@ static int startup(struct esp_struct *info) if (retval) { if (capable(CAP_SYS_ADMIN)) { - if (info->tty) + if (info->port.tty) set_bit(TTY_IO_ERROR, - &info->tty->flags); + &info->port.tty->flags); retval = 0; } goto out_unlocked; @@ -874,30 +874,30 @@ static int startup(struct esp_struct *info) serial_out(info, UART_ESI_CMD1, ESI_SET_SRV_MASK); serial_out(info, UART_ESI_CMD2, info->IER); - 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; spin_unlock_irqrestore(&info->lock, flags); /* * 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; } /* * set the speed of the serial port */ change_speed(info); - info->flags |= ASYNC_INITIALIZED; + info->port.flags |= ASYNC_INITIALIZED; return 0; out: @@ -914,7 +914,7 @@ static void shutdown(struct esp_struct *info) { unsigned long flags, f; - if (!(info->flags & ASYNC_INITIALIZED)) + if (!(info->port.flags & ASYNC_INITIALIZED)) return; #ifdef SERIAL_DEBUG_OPEN @@ -951,7 +951,7 @@ static void shutdown(struct esp_struct *info) while (current_port) { if ((current_port != info) && - (current_port->flags & ASYNC_INITIALIZED)) + (current_port->port.flags & ASYNC_INITIALIZED)) break; current_port = current_port->next_port; @@ -974,7 +974,7 @@ static void shutdown(struct esp_struct *info) serial_out(info, UART_ESI_CMD1, ESI_SET_SRV_MASK); serial_out(info, UART_ESI_CMD2, 0x00); - if (!info->tty || (info->tty->termios->c_cflag & HUPCL)) + if (!info->port.tty || (info->port.tty->termios->c_cflag & HUPCL)) info->MCR &= ~(UART_MCR_DTR|UART_MCR_RTS); info->MCR &= ~UART_MCR_OUT2; @@ -982,10 +982,10 @@ static void shutdown(struct esp_struct *info) serial_out(info, UART_ESI_CMD2, UART_MCR); serial_out(info, UART_ESI_CMD2, info->MCR); - if (info->tty) - set_bit(TTY_IO_ERROR, &info->tty->flags); + if (info->port.tty) + set_bit(TTY_IO_ERROR, &info->port.tty->flags); - info->flags &= ~ASYNC_INITIALIZED; + info->port.flags &= ~ASYNC_INITIALIZED; spin_unlock_irqrestore(&info->lock, flags); } @@ -1002,10 +1002,10 @@ static void change_speed(struct esp_struct *info) unsigned char flow1 = 0, flow2 = 0; unsigned long flags; - if (!info->tty || !info->tty->termios) + if (!info->port.tty || !info->port.tty->termios) return; - cflag = info->tty->termios->c_cflag; - port = info->port; + cflag = info->port.tty->termios->c_cflag; + port = info->io_port; /* byte size and parity */ switch (cflag & CSIZE) { @@ -1029,9 +1029,9 @@ static void change_speed(struct esp_struct *info) if (cflag & CMSPAR) cval |= UART_LCR_SPAR; #endif - baud = tty_get_baud_rate(info->tty); + baud = tty_get_baud_rate(info->port.tty); if (baud == 38400 && - ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST)) + ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST)) quot = info->custom_divisor; else { if (baud == 134) /* Special case since 134 is really 134.5 */ @@ -1046,49 +1046,49 @@ static void change_speed(struct esp_struct *info) if (baud) { /* Actual rate */ baud = BASE_BAUD/quot; - tty_encode_baud_rate(info->tty, baud, baud); + tty_encode_baud_rate(info->port.tty, baud, baud); } info->timeout = ((1024 * HZ * bits * quot) / BASE_BAUD) + (HZ / 50); /* CTS flow control flag and modem status interrupts */ /* info->IER &= ~UART_IER_MSI; */ if (cflag & CRTSCTS) { - info->flags |= ASYNC_CTS_FLOW; + info->port.flags |= ASYNC_CTS_FLOW; /* info->IER |= UART_IER_MSI; */ flow1 = 0x04; flow2 = 0x10; } else - info->flags &= ~ASYNC_CTS_FLOW; + info->port.flags &= ~ASYNC_CTS_FLOW; 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; /* * Set up parity check flag */ info->read_status_mask = UART_LSR_OE | UART_LSR_THRE | UART_LSR_DR; - if (I_INPCK(info->tty)) + if (I_INPCK(info->port.tty)) info->read_status_mask |= UART_LSR_FE | UART_LSR_PE; - if (I_BRKINT(info->tty) || I_PARMRK(info->tty)) + if (I_BRKINT(info->port.tty) || I_PARMRK(info->port.tty)) info->read_status_mask |= UART_LSR_BI; info->ignore_status_mask = 0; #if 0 /* This should be safe, but for some broken bits of hardware... */ - if (I_IGNPAR(info->tty)) { + if (I_IGNPAR(info->port.tty)) { info->ignore_status_mask |= UART_LSR_PE | UART_LSR_FE; info->read_status_mask |= UART_LSR_PE | UART_LSR_FE; } #endif - if (I_IGNBRK(info->tty)) { + if (I_IGNBRK(info->port.tty)) { info->ignore_status_mask |= UART_LSR_BI; info->read_status_mask |= UART_LSR_BI; /* * If we're ignore parity and break indicators, ignore * overruns too. (For real raw support). */ - if (I_IGNPAR(info->tty)) { + if (I_IGNPAR(info->port.tty)) { info->ignore_status_mask |= UART_LSR_OE | \ UART_LSR_PE | UART_LSR_FE; info->read_status_mask |= UART_LSR_OE | \ @@ -1096,7 +1096,7 @@ static void change_speed(struct esp_struct *info) } } - if (I_IXOFF(info->tty)) + if (I_IXOFF(info->port.tty)) flow1 |= 0x81; spin_lock_irqsave(&info->lock, flags); @@ -1116,10 +1116,10 @@ static void change_speed(struct esp_struct *info) serial_out(info, UART_ESI_CMD2, flow2); /* set flow control characters (XON/XOFF only) */ - if (I_IXOFF(info->tty)) { + if (I_IXOFF(info->port.tty)) { serial_out(info, UART_ESI_CMD1, ESI_SET_FLOW_CHARS); - serial_out(info, UART_ESI_CMD2, START_CHAR(info->tty)); - serial_out(info, UART_ESI_CMD2, STOP_CHAR(info->tty)); + serial_out(info, UART_ESI_CMD2, START_CHAR(info->port.tty)); + serial_out(info, UART_ESI_CMD2, STOP_CHAR(info->port.tty)); serial_out(info, UART_ESI_CMD2, 0x10); serial_out(info, UART_ESI_CMD2, 0x21); switch (cflag & CSIZE) { @@ -1355,9 +1355,9 @@ static int get_serial_info(struct esp_struct *info, memset(&tmp, 0, sizeof(tmp)); tmp.type = PORT_16550A; tmp.line = info->line; - tmp.port = info->port; + tmp.port = info->io_port; tmp.irq = info->irq; - tmp.flags = info->flags; + tmp.flags = info->port.flags; tmp.xmit_fifo_size = 1024; tmp.baud_base = BASE_BAUD; tmp.close_delay = info->close_delay; @@ -1407,7 +1407,7 @@ static int set_serial_info(struct esp_struct *info, if ((new_serial.type != PORT_16550A) || (new_serial.hub6) || - (info->port != new_serial.port) || + (info->io_port != new_serial.port) || (new_serial.baud_base != BASE_BAUD) || (new_serial.irq > 15) || (new_serial.irq < 2) || @@ -1425,9 +1425,9 @@ static int set_serial_info(struct esp_struct *info, if (change_irq || (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)); info->custom_divisor = new_serial.custom_divisor; } else { @@ -1441,9 +1441,9 @@ static int set_serial_info(struct esp_struct *info, if ((current_async->line >= info->line) && (current_async->line < (info->line + 8))) { if (current_async == info) { - if (current_async->count > 1) + if (current_async->port.count > 1) return -EBUSY; - } else if (current_async->count) + } else if (current_async->port.count) return -EBUSY; } @@ -1456,7 +1456,7 @@ static int set_serial_info(struct esp_struct *info, * At this point, we start making changes..... */ - 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->close_delay = new_serial.close_delay * HZ/100; @@ -1487,18 +1487,18 @@ static int set_serial_info(struct esp_struct *info, } } - if (info->flags & ASYNC_INITIALIZED) { - if (((old_info.flags & ASYNC_SPD_MASK) != - (info->flags & ASYNC_SPD_MASK)) || + if (info->port.flags & ASYNC_INITIALIZED) { + if (((old_info.port.flags & ASYNC_SPD_MASK) != + (info->port.flags & ASYNC_SPD_MASK)) || (old_info.custom_divisor != info->custom_divisor)) { - 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.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; change_speed(info); } } else @@ -1554,9 +1554,9 @@ static int set_esp_config(struct esp_struct *info, while (current_async) { if (current_async == info) { - if (current_async->count > 1) + if (current_async->port.count > 1) return -EBUSY; - } else if (current_async->count) + } else if (current_async->port.count) return -EBUSY; current_async = current_async->next_port; @@ -1578,7 +1578,7 @@ static int set_esp_config(struct esp_struct *info, spin_unlock_irqrestore(&info->lock, flags); } else { /* DMA mode to PIO mode only */ - if (info->count > 1) + if (info->port.count > 1) return -EBUSY; shutdown(info); @@ -1634,7 +1634,7 @@ static int set_esp_config(struct esp_struct *info, spin_unlock_irqrestore(&info->lock, flags); } - if (!(info->flags & ASYNC_INITIALIZED)) + if (!(info->port.flags & ASYNC_INITIALIZED)) retval = startup(info); return retval; @@ -1917,9 +1917,9 @@ static void rs_close(struct tty_struct *tty, struct file *filp) #ifdef SERIAL_DEBUG_OPEN printk(KERN_DEBUG "rs_close ttys%d, count = %d\n", - info->line, info->count); + info->line, 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 @@ -1927,19 +1927,19 @@ static void rs_close(struct tty_struct *tty, struct file *filp) * one, we've got real problems, since it means the * serial port won't be shutdown. */ - printk(KERN_DEBUG "rs_close: bad serial port count; tty->count is 1, info->count is %d\n", info->count); - info->count = 1; + printk(KERN_DEBUG "rs_close: bad serial port count; tty->count is 1, info->port.count is %d\n", info->port.count); + info->port.count = 1; } - if (--info->count < 0) { + if (--info->port.count < 0) { printk(KERN_ERR "rs_close: bad serial port count for ttys%d: %d\n", - info->line, info->count); - info->count = 0; + info->line, info->port.count); + info->port.count = 0; } - if (info->count) { + if (info->port.count) { DBG_CNT("before DEC-2"); goto out; } - info->flags |= ASYNC_CLOSING; + info->port.flags |= ASYNC_CLOSING; spin_unlock_irqrestore(&info->lock, flags); /* @@ -1958,7 +1958,7 @@ static void rs_close(struct tty_struct *tty, struct file *filp) /* info->IER &= ~UART_IER_RLSI; */ info->IER &= ~UART_IER_RDI; info->read_status_mask &= ~UART_LSR_DR; - if (info->flags & ASYNC_INITIALIZED) { + if (info->port.flags & ASYNC_INITIALIZED) { spin_lock_irqsave(&info->lock, flags); serial_out(info, UART_ESI_CMD1, ESI_SET_SRV_MASK); @@ -1981,15 +1981,15 @@ static void rs_close(struct tty_struct *tty, struct file *filp) rs_flush_buffer(tty); tty_ldisc_flush(tty); tty->closing = 0; - info->tty = NULL; + info->port.tty = NULL; - if (info->blocked_open) { + if (info->port.blocked_open) { if (info->close_delay) msleep_interruptible(jiffies_to_msecs(info->close_delay)); - wake_up_interruptible(&info->open_wait); + wake_up_interruptible(&info->port.open_wait); } - 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); return; out: @@ -2047,10 +2047,10 @@ static void esp_hangup(struct tty_struct *tty) rs_flush_buffer(tty); shutdown(info); - info->count = 0; - info->flags &= ~ASYNC_NORMAL_ACTIVE; - info->tty = NULL; - wake_up_interruptible(&info->open_wait); + info->port.count = 0; + info->port.flags &= ~ASYNC_NORMAL_ACTIVE; + info->port.tty = NULL; + wake_up_interruptible(&info->port.open_wait); } /* @@ -2071,11 +2071,11 @@ static int 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)) { - if (info->flags & ASYNC_CLOSING) - interruptible_sleep_on(&info->close_wait); + (info->port.flags & ASYNC_CLOSING)) { + if (info->port.flags & ASYNC_CLOSING) + interruptible_sleep_on(&info->port.close_wait); #ifdef SERIAL_DO_RESTART - if (info->flags & ASYNC_HUP_NOTIFY) + if (info->port.flags & ASYNC_HUP_NOTIFY) return -EAGAIN; else return -ERESTARTSYS; @@ -2090,7 +2090,7 @@ static int 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; } @@ -2100,20 +2100,20 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp, /* * 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 * rs_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 SERIAL_DEBUG_OPEN printk(KERN_DEBUG "block_til_ready before block: ttys%d, count = %d\n", - info->line, info->count); + info->line, info->port.count); #endif spin_lock_irqsave(&info->lock, flags); if (!tty_hung_up_p(filp)) - info->count--; - info->blocked_open++; + info->port.count--; + info->port.blocked_open++; while (1) { if ((tty->termios->c_cflag & CBAUD)) { unsigned int scratch; @@ -2128,9 +2128,9 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp, } 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; @@ -2144,7 +2144,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp, if (serial_in(info, UART_ESI_STAT2) & UART_MSR_DCD) do_clocal = 1; - if (!(info->flags & ASYNC_CLOSING) && + if (!(info->port.flags & ASYNC_CLOSING) && (do_clocal)) break; if (signal_pending(current)) { @@ -2153,25 +2153,25 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp, } #ifdef SERIAL_DEBUG_OPEN printk(KERN_DEBUG "block_til_ready blocking: ttys%d, count = %d\n", - info->line, info->count); + info->line, info->port.count); #endif spin_unlock_irqrestore(&info->lock, flags); schedule(); spin_lock_irqsave(&info->lock, flags); } 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->blocked_open--; + info->port.count++; + info->port.blocked_open--; spin_unlock_irqrestore(&info->lock, flags); #ifdef SERIAL_DEBUG_OPEN printk(KERN_DEBUG "block_til_ready after blocking: ttys%d, count = %d\n", - info->line, info->count); + info->line, info->port.count); #endif if (retval) return retval; - info->flags |= ASYNC_NORMAL_ACTIVE; + info->port.flags |= ASYNC_NORMAL_ACTIVE; return 0; } @@ -2204,12 +2204,12 @@ static int esp_open(struct tty_struct *tty, struct file *filp) } #ifdef SERIAL_DEBUG_OPEN - printk(KERN_DEBUG "esp_open %s, count = %d\n", tty->name, info->count); + printk(KERN_DEBUG "esp_open %s, count = %d\n", tty->name, info->port.count); #endif spin_lock_irqsave(&info->lock, flags); - info->count++; + info->port.count++; tty->driver_data = info; - info->tty = tty; + info->port.tty = tty; spin_unlock_irqrestore(&info->lock, flags); @@ -2263,7 +2263,7 @@ static int autoconfig(struct esp_struct *info) int port_detected = 0; unsigned long flags; - if (!request_region(info->port, REGION_SIZE, "esp serial")) + if (!request_region(info->io_port, REGION_SIZE, "esp serial")) return -EIO; spin_lock_irqsave(&info->lock, flags); @@ -2300,7 +2300,7 @@ static int autoconfig(struct esp_struct *info) } } if (!port_detected) - release_region(info->port, REGION_SIZE); + release_region(info->io_port, REGION_SIZE); spin_unlock_irqrestore(&info->lock, flags); return (port_detected); @@ -2414,7 +2414,7 @@ static int __init espserial_init(void) offset = 0; do { - info->port = esp[i] + offset; + info->io_port = esp[i] + offset; info->irq = irq[i]; info->line = (i * 8) + (offset / 8); @@ -2425,9 +2425,9 @@ static int __init espserial_init(void) } info->custom_divisor = (divisor[i] >> (offset / 2)) & 0xf; - info->flags = STD_COM_FLAGS; + info->port.flags = STD_COM_FLAGS; if (info->custom_divisor) - info->flags |= ASYNC_SPD_CUST; + info->port.flags |= ASYNC_SPD_CUST; info->magic = ESP_MAGIC; info->close_delay = 5*HZ/10; info->closing_wait = 30*HZ; @@ -2436,13 +2436,13 @@ static int __init espserial_init(void) info->config.flow_off = flow_off; info->config.pio_threshold = pio_threshold; info->next_port = ports; - init_waitqueue_head(&info->open_wait); - init_waitqueue_head(&info->close_wait); + init_waitqueue_head(&info->port.open_wait); + init_waitqueue_head(&info->port.close_wait); init_waitqueue_head(&info->delta_msr_wait); init_waitqueue_head(&info->break_wait); ports = info; printk(KERN_INFO "ttyP%d at 0x%04x (irq = %d) is an ESP ", - info->line, info->port, info->irq); + info->line, info->io_port, info->irq); if (info->line % 8) { printk("secondary port\n"); @@ -2498,8 +2498,8 @@ static void __exit espserial_exit(void) put_tty_driver(esp_driver); while (ports) { - if (ports->port) - release_region(ports->port, REGION_SIZE); + if (ports->io_port) + release_region(ports->io_port, REGION_SIZE); temp_async = ports->next_port; kfree(ports); ports = temp_async; diff --git a/include/linux/hayesesp.h b/include/linux/hayesesp.h index 2177ee5b2fe..940aeb51d53 100644 --- a/include/linux/hayesesp.h +++ b/include/linux/hayesesp.h @@ -76,11 +76,10 @@ struct hayes_esp_config { struct esp_struct { int magic; + struct tty_port port; spinlock_t lock; - int port; + int io_port; int irq; - int flags; /* defined in tty.h */ - struct tty_struct *tty; int read_status_mask; int ignore_status_mask; int timeout; @@ -93,14 +92,10 @@ struct esp_struct { int MCR; /* Modem control register */ unsigned long last_active; int line; - int count; /* # of fd on device */ - int blocked_open; /* # of blocked opens */ unsigned char *xmit_buf; int xmit_head; int xmit_tail; int xmit_cnt; - wait_queue_head_t open_wait; - wait_queue_head_t close_wait; wait_queue_head_t delta_msr_wait; wait_queue_head_t break_wait; struct async_icount icount; /* kernel counters for the 4 input interrupts */ -- 2.41.1