diff options
Diffstat (limited to 'drivers/char/isicom.c')
| -rw-r--r-- | drivers/char/isicom.c | 2037 |
1 files changed, 0 insertions, 2037 deletions
diff --git a/drivers/char/isicom.c b/drivers/char/isicom.c deleted file mode 100644 index e9ebabaf8cb..00000000000 --- a/drivers/char/isicom.c +++ /dev/null @@ -1,2037 +0,0 @@ -/* - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - * - * Original driver code supplied by Multi-Tech - * - * Changes - * 1/9/98 alan@redhat.com Merge to 2.0.x kernel tree - * Obtain and use official major/minors - * Loader switched to a misc device - * (fixed range check bug as a side effect) - * Printk clean up - * 9/12/98 alan@redhat.com Rough port to 2.1.x - * - * 10/6/99 sameer Merged the ISA and PCI drivers to - * a new unified driver. - * - * 3/9/99 sameer Added support for ISI4616 cards. - * - * 16/9/99 sameer We do not force RTS low anymore. - * This is to prevent the firmware - * from getting confused. - * - * 26/10/99 sameer Cosmetic changes:The driver now - * dumps the Port Count information - * along with I/O address and IRQ. - * - * 13/12/99 sameer Fixed the problem with IRQ sharing. - * - * 10/5/00 sameer Fixed isicom_shutdown_board() - * to not lower DTR on all the ports - * when the last port on the card is - * closed. - * - * 10/5/00 sameer Signal mask setup command added - * to isicom_setup_port and - * isicom_shutdown_port. - * - * 24/5/00 sameer The driver is now SMP aware. - * - * - * 27/11/00 Vinayak P Risbud Fixed the Driver Crash Problem - * - * - * 03/01/01 anil .s Added support for resetting the - * internal modems on ISI cards. - * - * 08/02/01 anil .s Upgraded the driver for kernel - * 2.4.x - * - * 11/04/01 Kevin Fixed firmware load problem with - * ISIHP-4X card - * - * 30/04/01 anil .s Fixed the remote login through - * ISI port problem. Now the link - * does not go down before password - * prompt. - * - * 03/05/01 anil .s Fixed the problem with IRQ sharing - * among ISI-PCI cards. - * - * 03/05/01 anil .s Added support to display the version - * info during insmod as well as module - * listing by lsmod. - * - * 10/05/01 anil .s Done the modifications to the source - * file and Install script so that the - * same installation can be used for - * 2.2.x and 2.4.x kernel. - * - * 06/06/01 anil .s Now we drop both dtr and rts during - * shutdown_port as well as raise them - * during isicom_config_port. - * - * 09/06/01 acme@conectiva.com.br use capable, not suser, do - * restore_flags on failure in - * isicom_send_break, verify put_user - * result - * - * 11/02/03 ranjeeth Added support for 230 Kbps and 460 Kbps - * Baud index extended to 21 - * - * 20/03/03 ranjeeth Made to work for Linux Advanced server. - * Taken care of license warning. - * - * 10/12/03 Ravindra Made to work for Fedora Core 1 of - * Red Hat Distribution - * - * 06/01/05 Alan Cox Merged the ISI and base kernel strands - * into a single 2.6 driver - * - * *********************************************************** - * - * To use this driver you also need the support package. You - * can find this in RPM format on - * ftp://ftp.linux.org.uk/pub/linux/alan - * - * You can find the original tools for this direct from Multitech - * ftp://ftp.multitech.com/ISI-Cards/ - * - * Having installed the cards the module options (/etc/modprobe.conf) - * - * options isicom io=card1,card2,card3,card4 irq=card1,card2,card3,card4 - * - * Omit those entries for boards you don't have installed. - * - * TODO - * Merge testing - * 64-bit verification - */ - -#include <linux/module.h> -#include <linux/firmware.h> -#include <linux/kernel.h> -#include <linux/tty.h> -#include <linux/tty_flip.h> -#include <linux/termios.h> -#include <linux/fs.h> -#include <linux/sched.h> -#include <linux/serial.h> -#include <linux/mm.h> -#include <linux/interrupt.h> -#include <linux/timer.h> -#include <linux/delay.h> -#include <linux/ioport.h> - -#include <asm/uaccess.h> -#include <asm/io.h> -#include <asm/system.h> - -#include <linux/pci.h> - -#include <linux/isicom.h> - -#define InterruptTheCard(base) outw(0, (base) + 0xc) -#define ClearInterrupt(base) inw((base) + 0x0a) - -#ifdef DEBUG -#define pr_dbg(str...) printk(KERN_DEBUG "ISICOM: " str) -#define isicom_paranoia_check(a, b, c) __isicom_paranoia_check((a), (b), (c)) -#else -#define pr_dbg(str...) do { } while (0) -#define isicom_paranoia_check(a, b, c) 0 -#endif - -static int isicom_probe(struct pci_dev *, const struct pci_device_id *); -static void __devexit isicom_remove(struct pci_dev *); - -static struct pci_device_id isicom_pci_tbl[] = { - { PCI_DEVICE(VENDOR_ID, 0x2028) }, - { PCI_DEVICE(VENDOR_ID, 0x2051) }, - { PCI_DEVICE(VENDOR_ID, 0x2052) }, - { PCI_DEVICE(VENDOR_ID, 0x2053) }, - { PCI_DEVICE(VENDOR_ID, 0x2054) }, - { PCI_DEVICE(VENDOR_ID, 0x2055) }, - { PCI_DEVICE(VENDOR_ID, 0x2056) }, - { PCI_DEVICE(VENDOR_ID, 0x2057) }, - { PCI_DEVICE(VENDOR_ID, 0x2058) }, - { 0 } -}; -MODULE_DEVICE_TABLE(pci, isicom_pci_tbl); - -static struct pci_driver isicom_driver = { - .name = "isicom", - .id_table = isicom_pci_tbl, - .probe = isicom_probe, - .remove = __devexit_p(isicom_remove) -}; - -static int prev_card = 3; /* start servicing isi_card[0] */ -static struct tty_driver *isicom_normal; - -static struct timer_list tx; -static char re_schedule = 1; - -static void isicom_tx(unsigned long _data); -static void isicom_start(struct tty_struct *tty); - -/* baud index mappings from linux defns to isi */ - -static signed char linuxb_to_isib[] = { - -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 15, 16, 17, 18, 19 -}; - -struct isi_board { - unsigned long base; - unsigned char irq; - unsigned char port_count; - unsigned short status; - unsigned short port_status; /* each bit for each port */ - unsigned short shift_count; - struct isi_port * ports; - signed char count; - unsigned char isa; - spinlock_t card_lock; /* Card wide lock 11/5/00 -sameer */ - unsigned long flags; -}; - -struct isi_port { - unsigned short magic; - unsigned int flags; - int count; - int blocked_open; - int close_delay; - u16 channel; - u16 status; - u16 closing_wait; - struct isi_board * card; - struct tty_struct * tty; - wait_queue_head_t close_wait; - wait_queue_head_t open_wait; - struct work_struct hangup_tq; - struct work_struct bh_tqueue; - unsigned char * xmit_buf; - int xmit_head; - int xmit_tail; - int xmit_cnt; -}; - -static struct isi_board isi_card[BOARD_COUNT]; -static struct isi_port isi_ports[PORT_COUNT]; - -/* - * Locking functions for card level locking. We need to own both - * the kernel lock for the card and have the card in a position that - * it wants to talk. - */ - -static int lock_card(struct isi_board *card) -{ - char retries; - unsigned long base = card->base; - - for (retries = 0; retries < 100; retries++) { - spin_lock_irqsave(&card->card_lock, card->flags); - if (inw(base + 0xe) & 0x1) { - return 1; - } else { - spin_unlock_irqrestore(&card->card_lock, card->flags); - udelay(1000); /* 1ms */ - } - } - printk(KERN_WARNING "ISICOM: Failed to lock Card (0x%lx)\n", - card->base); - - return 0; /* Failed to aquire the card! */ -} - -static int lock_card_at_interrupt(struct isi_board *card) -{ - unsigned char retries; - unsigned long base = card->base; - - for (retries = 0; retries < 200; retries++) { - spin_lock_irqsave(&card->card_lock, card->flags); - - if (inw(base + 0xe) & 0x1) - return 1; - else - spin_unlock_irqrestore(&card->card_lock, card->flags); - } - /* Failing in interrupt is an acceptable event */ - return 0; /* Failed to aquire the card! */ -} - -static void unlock_card(struct isi_board *card) -{ - spin_unlock_irqrestore(&card->card_lock, card->flags); -} - -/* - * ISI Card specific ops ... - */ - -static void raise_dtr(struct isi_port *port) -{ - struct isi_board *card = port->card; - unsigned long base = card->base; - u16 channel = port->channel; - - if (!lock_card(card)) - return; - - outw(0x8000 | (channel << card->shift_count) | 0x02, base); - outw(0x0504, base); - InterruptTheCard(base); - port->status |= ISI_DTR; - unlock_card(card); -} - -static inline void drop_dtr(struct isi_port *port) -{ - struct isi_board *card = port->card; - unsigned long base = card->base; - u16 channel = port->channel; - - if (!lock_card(card)) - return; - - outw(0x8000 | (channel << card->shift_count) | 0x02, base); - outw(0x0404, base); - InterruptTheCard(base); - port->status &= ~ISI_DTR; - unlock_card(card); -} - -static inline void raise_rts(struct isi_port *port) -{ - struct isi_board *card = port->card; - unsigned long base = card->base; - u16 channel = port->channel; - - if (!lock_card(card)) - return; - - outw(0x8000 | (channel << card->shift_count) | 0x02, base); - outw(0x0a04, base); - InterruptTheCard(base); - port->status |= ISI_RTS; - unlock_card(card); -} -static inline void drop_rts(struct isi_port *port) -{ - struct isi_board *card = port->card; - unsigned long base = card->base; - u16 channel = port->channel; - - if (!lock_card(card)) - return; - - outw(0x8000 | (channel << card->shift_count) | 0x02, base); - outw(0x0804, base); - InterruptTheCard(base); - port->status &= ~ISI_RTS; - unlock_card(card); -} - -static inline void raise_dtr_rts(struct isi_port *port) -{ - struct isi_board *card = port->card; - unsigned long base = card->base; - u16 channel = port->channel; - - if (!lock_card(card)) - return; - - outw(0x8000 | (channel << card->shift_count) | 0x02, base); - outw(0x0f04, base); - InterruptTheCard(base); - port->status |= (ISI_DTR | ISI_RTS); - unlock_card(card); -} - -static void drop_dtr_rts(struct isi_port *port) -{ - struct isi_board *card = port->card; - unsigned long base = card->base; - u16 channel = port->channel; - - if (!lock_card(card)) - return; - - outw(0x8000 | (channel << card->shift_count) | 0x02, base); - outw(0x0c04, base); - InterruptTheCard(base); - port->status &= ~(ISI_RTS | ISI_DTR); - unlock_card(card); -} - -static inline void kill_queue(struct isi_port *port, short queue) -{ - struct isi_board *card = port->card; - unsigned long base = card->base; - u16 channel = port->channel; - - if (!lock_card(card)) - return; - - outw(0x8000 | (channel << card->shift_count) | 0x02, base); - outw((queue << 8) | 0x06, base); - InterruptTheCard(base); - unlock_card(card); -} - -/* - * ISICOM Driver specific routines ... - * - */ - -static inline int __isicom_paranoia_check(struct isi_port const *port, - char *name, const char *routine) -{ - if (!port) { - printk(KERN_WARNING "ISICOM: Warning: bad isicom magic for " - "dev %s in %s.\n", name, routine); - return 1; - } - if (port->magic != ISICOM_MAGIC) { - printk(KERN_WARNING "ISICOM: Warning: NULL isicom port for " - "dev %s in %s.\n", name, routine); - return 1; - } - - return 0; -} - -/* - * Transmitter. - * - * We shovel data into the card buffers on a regular basis. The card - * will do the rest of the work for us. - */ - -static void isicom_tx(unsigned long _data) -{ - short count = (BOARD_COUNT-1), card, base; - short txcount, wrd, residue, word_count, cnt; - struct isi_port *port; - struct tty_struct *tty; - - /* find next active board */ - card = (prev_card + 1) & 0x0003; - while(count-- > 0) { - if (isi_card[card].status & BOARD_ACTIVE) - break; - card = (card + 1) & 0x0003; - } - if (!(isi_card[card].status & BOARD_ACTIVE)) - goto sched_again; - - prev_card = card; - - count = isi_card[card].port_count; - port = isi_card[card].ports; - base = isi_card[card].base; - for (;count > 0;count--, port++) { - if (!lock_card_at_interrupt(&isi_card[card])) - continue; - /* port not active or tx disabled to force flow control */ - if (!(port->flags & ASYNC_INITIALIZED) || - !(port->status & ISI_TXOK)) - unlock_card(&isi_card[card]); - continue; - - tty = port->tty; - - - if (tty == NULL) { - unlock_card(&isi_card[card]); - continue; - } - - txcount = min_t(short, TX_SIZE, port->xmit_cnt); - if (txcount <= 0 || tty->stopped || tty->hw_stopped) { - unlock_card(&isi_card[card]); - continue; - } - if (!(inw(base + 0x02) & (1 << port->channel))) { - unlock_card(&isi_card[card]); - continue; - } - pr_dbg("txing %d bytes, port%d.\n", txcount, - port->channel + 1); - outw((port->channel << isi_card[card].shift_count) | txcount, - base); - residue = NO; - wrd = 0; - while (1) { - cnt = min_t(int, txcount, (SERIAL_XMIT_SIZE - - port->xmit_tail)); - if (residue == YES) { - residue = NO; - if (cnt > 0) { - wrd |= (port->xmit_buf[port->xmit_tail] - << 8); - port->xmit_tail = (port->xmit_tail + 1) - & (SERIAL_XMIT_SIZE - 1); - port->xmit_cnt--; - txcount--; - cnt--; - outw(wrd, base); - } else { - outw(wrd, base); - break; - } - } - if (cnt <= 0) break; - word_count = cnt >> 1; - outsw(base, port->xmit_buf+port->xmit_tail,word_count); - port->xmit_tail = (port->xmit_tail - + (word_count << 1)) & (SERIAL_XMIT_SIZE - 1); - txcount -= (word_count << 1); - port->xmit_cnt -= (word_count << 1); - if (cnt & 0x0001) { - residue = YES; - wrd = port->xmit_buf[port->xmit_tail]; - port->xmit_tail = (port->xmit_tail + 1) - & (SERIAL_XMIT_SIZE - 1); - port->xmit_cnt--; - txcount--; - } - } - - InterruptTheCard(base); - if (port->xmit_cnt <= 0) - port->status &= ~ISI_TXOK; - if (port->xmit_cnt <= WAKEUP_CHARS) - schedule_work(&port->bh_tqueue); - unlock_card(&isi_card[card]); - } - - /* schedule another tx for hopefully in about 10ms */ -sched_again: - if (!re_schedule) { - re_schedule = 2; - return; - } - - init_timer(&tx); - tx.expires = jiffies + HZ/100; - tx.data = 0; - tx.function = isicom_tx; - add_timer(&tx); - - return; -} - -/* Interrupt handlers */ - - -static void isicom_bottomhalf(void *data) -{ - struct isi_port *port = (struct isi_port *) data; - struct tty_struct *tty = port->tty; - - if (!tty) - return; - - tty_wakeup(tty); - wake_up_interruptible(&tty->write_wait); -} - -/* - * Main interrupt handler routine - */ - -static irqreturn_t isicom_interrupt(int irq, void *dev_id, struct pt_regs *regs) -{ - struct isi_board *card = dev_id; - struct isi_port *port; - struct tty_struct *tty; - unsigned long base; - u16 header, word_count, count, channel; - short byte_count; - unsigned char *rp; - - if (!card || !(card->status & FIRMWARE_LOADED)) - return IRQ_NONE; - - base = card->base; - spin_lock(&card->card_lock); - - if (card->isa == NO) { - /* - * disable any interrupts from the PCI card and lower the - * interrupt line - */ - outw(0x8000, base+0x04); - ClearInterrupt(base); - } - - inw(base); /* get the dummy word out */ - header = inw(base); - channel = (header & 0x7800) >> card->shift_count; - byte_count = header & 0xff; - - if (channel + 1 > card->port_count) { - printk(KERN_WARNING "ISICOM: isicom_interrupt(0x%lx): " - "%d(channel) > port_count.\n", base, channel+1); - if (card->isa) - ClearInterrupt(base); - else - outw(0x0000, base+0x04); /* enable interrupts */ - spin_unlock(&card->card_lock); - return IRQ_HANDLED; - } - port = card->ports + channel; - if (!(port->flags & ASYNC_INITIALIZED)) { - if (card->isa) - ClearInterrupt(base); - else - outw(0x0000, base+0x04); /* enable interrupts */ - return IRQ_HANDLED; - } - - tty = port->tty; - if (tty == NULL) { - word_count = byte_count >> 1; - while(byte_count > 1) { - inw(base); - byte_count -= 2; - } - if (byte_count & 0x01) - inw(base); - if (card->isa == YES) - ClearInterrupt(base); - else - outw(0x0000, base+0x04); /* enable interrupts */ - spin_unlock(&card->card_lock); - return IRQ_HANDLED; - } - - if (header & 0x8000) { /* Status Packet */ - header = inw(base); - switch(header & 0xff) { - case 0: /* Change in EIA signals */ - if (port->flags & ASYNC_CHECK_CD) { - if (port->status & ISI_DCD) { - if (!(header & ISI_DCD)) { - /* Carrier has been lost */ - pr_dbg("interrupt: DCD->low.\n" - ); - port->status &= ~ISI_DCD; - schedule_work(&port->hangup_tq); - } - } else if (header & ISI_DCD) { - /* Carrier has been detected */ - pr_dbg("interrupt: DCD->high.\n"); - port->status |= ISI_DCD; - wake_up_interruptible(&port->open_wait); - } - } else { - if (header & ISI_DCD) - port->status |= ISI_DCD; - else - port->status &= ~ISI_DCD; - } - - if (port->flags & ASYNC_CTS_FLOW) { - if (port->tty->hw_stopped) { - if (header & ISI_CTS) { - port->tty->hw_stopped = 0; - /* start tx ing */ - port->status |= (ISI_TXOK - | ISI_CTS); - schedule_work(&port->bh_tqueue); - } - } else if (!(header & ISI_CTS)) { - port->tty->hw_stopped = 1; - /* stop tx ing */ - port->status &= ~(ISI_TXOK | ISI_CTS); - } - } else { - if (header & ISI_CTS) - port->status |= ISI_CTS; - else - port->status &= ~ISI_CTS; - } - - if (header & ISI_DSR) - port->status |= ISI_DSR; - else - port->status &= ~ISI_DSR; - - if (header & ISI_RI) - port->status |= ISI_RI; - else - port->status &= ~ISI_RI; - - break; - - case 1: /* Received Break !!! */ - tty_insert_flip_char(tty, 0, TTY_BREAK); - if (port->flags & ASYNC_SAK) - do_SAK(tty); - tty_flip_buffer_push(tty); - break; - - case 2: /* Statistics */ - pr_dbg("isicom_interrupt: stats!!!.\n"); - break; - - default: - pr_dbg("Intr: Unknown code in status packet.\n"); - break; - } - } else { /* Data Packet */ - - count = tty_prepare_flip_string(tty, &rp, byte_count & ~1); - pr_dbg("Intr: Can rx %d of %d bytes.\n", count, byte_count); - word_count = count >> 1; - insw(base, rp, word_count); - byte_count -= (word_count << 1); - if (count & 0x0001) { - tty_insert_flip_char(tty, inw(base) & 0xff, - TTY_NORMAL); - byte_count -= 2; - } - if (byte_count > 0) { - pr_dbg("Intr(0x%lx:%d): Flip buffer overflow! dropping " - "bytes...\n", base, channel + 1); - while(byte_count > 0) { /* drain out unread xtra data */ - inw(base); - byte_count -= 2; - } - } - tty_flip_buffer_push(tty); - } - if (card->isa == YES) - ClearInterrupt(base); - else - outw(0x0000, base+0x04); /* enable interrupts */ - - return IRQ_HANDLED; -} - -static void isicom_config_port(struct isi_port *port) -{ - struct isi_board *card = port->card; - struct tty_struct *tty; - unsigned long baud; - unsigned long base = card->base; - u16 channel_setup, channel = port->channel, - shift_count = card->shift_count; - unsigned char flow_ctrl; - - if (!(tty = port->tty) || !tty->termios) - return; - baud = C_BAUD(tty); - if (baud & CBAUDEX) { - baud &= ~CBAUDEX; - - /* if CBAUDEX bit is on and the baud is set to either 50 or 75 - * then the card is programmed for 57.6Kbps or 115Kbps - * respectively. - */ - - if (baud < 1 || baud > 2) - port->tty->termios->c_cflag &= ~CBAUDEX; - else - baud += 15; - } - if (baud == 15) { - - /* the ASYNC_SPD_HI and ASYNC_SPD_VHI options are set - * by the set_serial_info ioctl ... this is done by - * the 'setserial' utility. - */ - - if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI) - baud++; /* 57.6 Kbps */ - if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI) - baud +=2; /* 115 Kbps */ - } - if (linuxb_to_isib[baud] == -1) { - /* hang up */ - drop_dtr(port); - return; - } - else - raise_dtr(port); - - if (lock_card(card)) { - outw(0x8000 | (channel << shift_count) |0x03, base); - outw(linuxb_to_isib[baud] << 8 | 0x03, base); - channel_setup = 0; - switch(C_CSIZE(tty)) { - case CS5: - channel_setup |= ISICOM_CS5; - break; - case CS6: - channel_setup |= ISICOM_CS6; - break; - case CS7: - channel_setup |= ISICOM_CS7; - break; - case CS8: - channel_setup |= ISICOM_CS8; - break; - } - - if (C_CSTOPB(tty)) - channel_setup |= ISICOM_2SB; - if (C_PARENB(tty)) { - channel_setup |= ISICOM_EVPAR; - if (C_PARODD(tty)) - channel_setup |= ISICOM_ODPAR; - } - outw(channel_setup, base); - InterruptTheCard(base); - unlock_card(card); - } - if (C_CLOCAL(tty)) - port->flags &= ~ASYNC_CHECK_CD; - else - port->flags |= ASYNC_CHECK_CD; - - /* flow control settings ...*/ - flow_ctrl = 0; - port->flags &= ~ASYNC_CTS_FLOW; - if (C_CRTSCTS(tty)) { - port->flags |= ASYNC_CTS_FLOW; - flow_ctrl |= ISICOM_CTSRTS; - } - if (I_IXON(tty)) - flow_ctrl |= ISICOM_RESPOND_XONXOFF; - if (I_IXOFF(tty)) - flow_ctrl |= ISICOM_INITIATE_XONXOFF; - - if (lock_card(card)) { - outw(0x8000 | (channel << shift_count) |0x04, base); - outw(flow_ctrl << 8 | 0x05, base); - outw((STOP_CHAR(tty)) << 8 | (START_CHAR(tty)), base); - InterruptTheCard(base); - unlock_card(card); - } - - /* rx enabled -> enable port for rx on the card */ - if (C_CREAD(tty)) { - card->port_status |= (1 << channel); - outw(card->port_status, base + 0x02); - } -} - -/* open et all */ - -static inline void isicom_setup_board(struct isi_board *bp) -{ - int channel; - struct isi_port *port; - unsigned long flags; - - spin_lock_irqsave(&bp->card_lock, flags); - if (bp->status & BOARD_ACTIVE) { - spin_unlock_irqrestore(&bp->card_lock, flags); - return; - } - port = bp->ports; - bp->status |= BOARD_ACTIVE; - spin_unlock_irqrestore(&bp->card_lock, flags); - for (channel = 0; channel < bp->port_count; channel++, port++) - drop_dtr_rts(port); - return; -} - -static int isicom_setup_port(struct isi_port *port) -{ - struct isi_board *card = port->card; - unsigned long flags; - - if (port->flags & ASYNC_INITIALIZED) { - return 0; - } - if (!port->xmit_buf) { - unsigned long page; - - if (!(page = get_zeroed_page(GFP_KERNEL))) - return -ENOMEM; - - if (port->xmit_buf) { - free_page(page); - return -ERESTARTSYS; - } - port->xmit_buf = (unsigned char *) page; - } - - spin_lock_irqsave(&card->card_lock, flags); - if (port->tty) - clear_bit(TTY_IO_ERROR, &port->tty->flags); - if (port->count == 1) - card->count++; - - port->xmit_cnt = port->xmit_head = port->xmit_tail = 0; - - /* discard any residual data */ - kill_queue(port, ISICOM_KILLTX | ISICOM_KILLRX); - - isicom_config_port(port); - port->flags |= ASYNC_INITIALIZED; - spin_unlock_irqrestore(&card->card_lock, flags); - - return 0; -} - -static int block_til_ready(struct tty_struct *tty, struct file *filp, - struct isi_port *port) -{ - struct isi_board *card = port->card; - int do_clocal = 0, retval; - unsigned long flags; - DECLARE_WAITQUEUE(wait, current); - - /* block if port is in the process of being closed */ - - if (tty_hung_up_p(filp) || port->flags & ASYNC_CLOSING) { - pr_dbg("block_til_ready: close in progress.\n"); - interruptible_sleep_on(&port->close_wait); - if (port->flags & ASYNC_HUP_NOTIFY) - return -EAGAIN; - else - return -ERESTARTSYS; - } - - /* if non-blocking mode is set ... */ - - if ((filp->f_flags & O_NONBLOCK) || - (tty->flags & (1 << TTY_IO_ERROR))) { - pr_dbg("block_til_ready: non-block mode.\n"); - port->flags |= ASYNC_NORMAL_ACTIVE; - return 0; - } - - if (C_CLOCAL(tty)) - do_clocal = 1; - - /* block waiting for DCD to be asserted, and while - callout dev is busy */ - retval = 0; - add_wait_queue(&port->open_wait, &wait); - - spin_lock_irqsave(&card->card_lock, flags); - if (!tty_hung_up_p(filp)) - port->count--; - port->blocked_open++; - spin_unlock_irqrestore(&card->card_lock, flags); - - while (1) { - raise_dtr_rts(port); - - set_current_state(TASK_INTERRUPTIBLE); - if (tty_hung_up_p(filp) || !(port->flags & ASYNC_INITIALIZED)) { - if (port->flags & ASYNC_HUP_NOTIFY) - retval = -EAGAIN; - else - retval = -ERESTARTSYS; - break; - } - if (!(port->flags & ASYNC_CLOSING) && - (do_clocal || (port->status & ISI_DCD))) { - break; - } - if (signal_pending(current)) { - retval = -ERESTARTSYS; - break; - } - schedule(); - } - set_current_state(TASK_RUNNING); - remove_wait_queue(&port->open_wait, &wait); - spin_lock_irqsave(&card->card_lock, flags); - if (!tty_hung_up_p(filp)) - port->count++; - port->blocked_open--; - spin_unlock_irqrestore(&card->card_lock, flags); - if (retval) - return retval; - port->flags |= ASYNC_NORMAL_ACTIVE; - return 0; -} - -static int isicom_open(struct tty_struct *tty, struct file *filp) -{ - struct isi_port *port; - struct isi_board *card; - unsigned int line, board; - int error; - - line = tty->index; - if (line < 0 || line > PORT_COUNT-1) - return -ENODEV; - board = BOARD(line); - card = &isi_card[board]; - - if (!(card->status & FIRMWARE_LOADED)) - return -ENODEV; - - /* open on a port greater than the port count for the card !!! */ - if (line > ((board * 16) + card->port_count - 1)) - return -ENODEV; - - port = &isi_ports[line]; - if (isicom_paranoia_check(port, tty->name, "isicom_open")) - return -ENODEV; - - isicom_setup_board(card); - - port->count++; - tty->driver_data = port; - port->tty = tty; - if ((error = isicom_setup_port(port))!=0) - return error; - if ((error = block_til_ready(tty, filp, port))!=0) - return error; - - return 0; -} - -/* close et all */ - -static inline void isicom_shutdown_board(struct isi_board *bp) -{ - unsigned long flags; - - spin_lock_irqsave(&bp->card_lock, flags); - if (bp->status & BOARD_ACTIVE) { - bp->status &= ~BOARD_ACTIVE; - } - spin_unlock_irqrestore(&bp->card_lock, flags); -} - -static void isicom_shutdown_port(struct isi_port *port) -{ - struct isi_board *card = port->card; - struct tty_struct *tty; - unsigned long flags; - - tty = port->tty; - - spin_lock_irqsave(&card->card_lock, flags); - if (!(port->flags & ASYNC_INITIALIZED)) { - spin_unlock_irqrestore(&card->card_lock, flags); - return; - } - if (port->xmit_buf) { - free_page((unsigned long) port->xmit_buf); - port->xmit_buf = NULL; - } - port->flags &= ~ASYNC_INITIALIZED; - /* 3rd October 2000 : Vinayak P Risbud */ - port->tty = NULL; - spin_unlock_irqrestore(&card->card_lock, flags); - - /*Fix done by Anil .S on 30-04-2001 - remote login through isi port has dtr toggle problem - due to which the carrier drops before the password prompt - appears on the remote end. Now we drop the dtr only if the - HUPCL(Hangup on close) flag is set for the tty*/ - - if (C_HUPCL(tty)) - /* drop dtr on this port */ - drop_dtr(port); - - /* any other port uninits */ - if (tty) - set_bit(TTY_IO_ERROR, &tty->flags); - - if (--card->count < 0) { - pr_dbg("isicom_shutdown_port: bad board(0x%lx) count %d.\n", - card->base, card->count); - card->count = 0; - } - - /* last port was closed, shutdown that boad too */ - if (C_HUPCL(tty)) { - if (!card->count) - isicom_shutdown_board(card); - } -} - -static void isicom_close(struct tty_struct *tty, struct file *filp) -{ - struct isi_port *port = tty->driver_data; - struct isi_board *card = port->card; - unsigned long flags; - - if (!port) - return; - if (isicom_paranoia_check(port, tty->name, "isicom_close")) - return; - - pr_dbg("Close start!!!.\n"); - - spin_lock_irqsave(&card->card_lock, flags); - if (tty_hung_up_p(filp)) { - spin_unlock_irqrestore(&card->card_lock, flags); - return; - } - - if (tty->count == 1 && port->count != 1) { - printk(KERN_WARNING "ISICOM:(0x%lx) isicom_close: bad port " - "count tty->count = 1 port count = %d.\n", - card->base, port->count); - port->count = 1; - } - if (--port->count < 0) { - printk(KERN_WARNING "ISICOM:(0x%lx) isicom_close: bad port " - "count for channel%d = %d", card->base, port->channel, - port->count); - port->count = 0; - } - - if (port->count) { - spin_unlock_irqrestore(&card->card_lock, flags); - return; - } - port->flags |= ASYNC_CLOSING; - tty->closing = 1; - spin_unlock_irqrestore(&card->card_lock, flags); - - if (port->closing_wait != ASYNC_CLOSING_WAIT_NONE) - tty_wait_until_sent(tty, port->closing_wait); - /* indicate to the card that no more data can be received - on this port */ - spin_lock_irqsave(&card->card_lock, flags); - if (port->flags & ASYNC_INITIALIZED) { - card->port_status &= ~(1 << port->channel); - outw(card->port_status, card->base + 0x02); - } - isicom_shutdown_port(port); - spin_unlock_irqrestore(&card->card_lock, flags); - - if (tty->driver->flush_buffer) - tty->driver->flush_buffer(tty); - tty_ldisc_flush(tty); - - spin_lock_irqsave(&card->card_lock, flags); - tty->closing = 0; - - if (port->blocked_open) { - spin_unlock_irqrestore(&card->card_lock, flags); - if (port->close_delay) { - pr_dbg("scheduling until time out.\n"); - msleep_interruptible( - jiffies_to_msecs(port->close_delay)); - } - spin_lock_irqsave(&card->card_lock, flags); - wake_up_interruptible(&port->open_wait); - } - port->flags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_CLOSING); - wake_up_interruptible(&port->close_wait); - spin_unlock_irqrestore(&card->card_lock, flags); -} - -/* write et all */ -static int isicom_write(struct tty_struct *tty, const unsigned char *buf, - int count) -{ - struct isi_port *port = tty->driver_data; - struct isi_board *card = port->card; - unsigned long flags; - int cnt, total = 0; - - if (isicom_paranoia_check(port, tty->name, "isicom_write")) - return 0; - - if (!tty || !port->xmit_buf) - return 0; - - spin_lock_irqsave(&card->card_lock, flags); - - while(1) { - cnt = min_t(int, count, min(SERIAL_XMIT_SIZE - port->xmit_cnt - - 1, SERIAL_XMIT_SIZE - port->xmit_head)); - if (cnt <= 0) - break; - - memcpy(port->xmit_buf + port->xmit_head, buf, cnt); - port->xmit_head = (port->xmit_head + cnt) & (SERIAL_XMIT_SIZE - - 1); - port->xmit_cnt += cnt; - buf += cnt; - count -= cnt; - total += cnt; - } - if (port->xmit_cnt && !tty->stopped && !tty->hw_stopped) - port->status |= ISI_TXOK; - spin_unlock_irqrestore(&card->card_lock, flags); - return total; -} - -/* put_char et all */ -static void isicom_put_char(struct tty_struct *tty, unsigned char ch) -{ - struct isi_port *port = tty->driver_data; - struct isi_board *card = port->card; - unsigned long flags; - - if (isicom_paranoia_check(port, tty->name, "isicom_put_char")) - return; - - if (!tty || !port->xmit_buf) - return; - - spin_lock_irqsave(&card->card_lock, flags); - if (port->xmit_cnt >= SERIAL_XMIT_SIZE - 1) { - spin_unlock_irqrestore(&card->card_lock, flags); - return; - } - - port->xmit_buf[port->xmit_head++] = ch; - port->xmit_head &= (SERIAL_XMIT_SIZE - 1); - port->xmit_cnt++; - spin_unlock_irqrestore(&card->card_lock, flags); -} - -/* flush_chars et all */ -static void isicom_flush_chars(struct tty_struct *tty) -{ - struct isi_port *port = tty->driver_data; - - if (isicom_paranoia_check(port, tty->name, "isicom_flush_chars")) - return; - - if (port->xmit_cnt <= 0 || tty->stopped || tty->hw_stopped || - !port->xmit_buf) - return; - - /* this tells the transmitter to consider this port for - data output to the card ... that's the best we can do. */ - port->status |= ISI_TXOK; -} - -/* write_room et all */ -static int isicom_write_room(struct tty_struct *tty) -{ - struct isi_port *port = tty->driver_data; - int free; - - if (isicom_paranoia_check(port, tty->name, "isicom_write_room")) - return 0; - - free = SERIAL_XMIT_SIZE - port->xmit_cnt - 1; - if (free < 0) - free = 0; - return free; -} - -/* chars_in_buffer et all */ -static int isicom_chars_in_buffer(struct tty_struct *tty) -{ - struct isi_port *port = tty->driver_data; - if (isicom_paranoia_check(port, tty->name, "isicom_chars_in_buffer")) - return 0; - return port->xmit_cnt; -} - -/* ioctl et all */ -static inline void isicom_send_break(struct isi_port *port, - unsigned long length) -{ - struct isi_board *card = port->card; - unsigned long base = card->base; - - if (!lock_card(card)) - return; - - outw(0x8000 | ((port->channel) << (card->shift_count)) | 0x3, base); - outw((length & 0xff) << 8 | 0x00, base); - outw((length & 0xff00), base); - InterruptTheCard(base); - - unlock_card(card); -} - -static int isicom_tiocmget(struct tty_struct *tty, struct file *file) -{ - struct isi_port *port = tty->driver_data; - /* just send the port status */ - u16 status = port->status; - - if (isicom_paranoia_check(port, tty->name, "isicom_ioctl")) - return -ENODEV; - - return ((status & ISI_RTS) ? TIOCM_RTS : 0) | - ((status & ISI_DTR) ? TIOCM_DTR : 0) | - ((status & ISI_DCD) ? TIOCM_CAR : 0) | - ((status & ISI_DSR) ? TIOCM_DSR : 0) | - ((status & ISI_CTS) ? TIOCM_CTS : 0) | - ((status & ISI_RI ) ? TIOCM_RI : 0); -} - -static int isicom_tiocmset(struct tty_struct *tty, struct file *file, - unsigned int set, unsigned int clear) -{ - struct isi_port *port = tty->driver_data; - - if (isicom_paranoia_check(port, tty->name, "isicom_ioctl")) - return -ENODEV; - - if (set & TIOCM_RTS) - raise_rts(port); - if (set & TIOCM_DTR) - raise_dtr(port); - - if (clear & TIOCM_RTS) - drop_rts(port); - if (clear & TIOCM_DTR) - drop_dtr(port); - - return 0; -} - -static int isicom_set_serial_info(struct isi_port *port, - struct serial_struct __user *info) -{ - struct serial_struct newinfo; - int reconfig_port; - - if (copy_from_user(&newinfo, info, sizeof(newinfo))) - return -EFAULT; - - reconfig_port = ((port->flags & ASYNC_SPD_MASK) != - (newinfo.flags & ASYNC_SPD_MASK)); - - if (!capable(CAP_SYS_ADMIN)) { - if ((newinfo.close_delay != port->close_delay) || - (newinfo.closing_wait != port->closing_wait) || - ((newinfo.flags & ~ASYNC_USR_MASK) != - (port->flags & ~ASYNC_USR_MASK))) - return -EPERM; - port->flags = ((port->flags & ~ ASYNC_USR_MASK) | - (newinfo.flags & ASYNC_USR_MASK)); - } - else { - port->close_delay = newinfo.close_delay; - port->closing_wait = newinfo.closing_wait; - port->flags = ((port->flags & ~ASYNC_FLAGS) | - (newinfo.flags & ASYNC_FLAGS)); - } - if (reconfig_port) { - isicom_config_port(port); - } - return 0; -} - -static int isicom_get_serial_info(struct isi_port *port, - struct serial_struct __user *info) -{ - struct serial_struct out_info; - - memset(&out_info, 0, sizeof(out_info)); -/* out_info.type = ? */ - out_info.line = port - isi_ports; - out_info.port = port->card->base; - out_info.irq = port->card->irq; - out_info.flags = port->flags; -/* out_info.baud_base = ? */ - out_info.close_delay = port->close_delay; - out_info.closing_wait = port->closing_wait; - if (copy_to_user(info, &out_info, sizeof(out_info))) - return -EFAULT; - return 0; -} - -static int isicom_ioctl(struct tty_struct *tty, struct file *filp, - unsigned int cmd, unsigned long arg) -{ - struct isi_port *port = tty->driver_data; - void __user *argp = (void __user *)arg; - int retval; - - if (isicom_paranoia_check(port, tty->name, "isicom_ioctl")) - return -ENODEV; - - switch(cmd) { - case TCSBRK: - retval = tty_check_change(tty); - if (retval) - return retval; - tty_wait_until_sent(tty, 0); - if (!arg) - isicom_send_break(port, HZ/4); - return 0; - - case TCSBRKP: - retval = tty_check_change(tty); - if (retval) - return retval; - tty_wait_until_sent(tty, 0); - isicom_send_break(port, arg ? arg * (HZ/10) : HZ/4); - return 0; - - case TIOCGSOFTCAR: - return put_user(C_CLOCAL(tty) ? 1 : 0, - (unsigned long __user *)argp); - - case TIOCSSOFTCAR: - if (get_user(arg, (unsigned long __user *) argp)) - return -EFAULT; - tty->termios->c_cflag = - ((tty->termios->c_cflag & ~CLOCAL) | - (arg ? CLOCAL : 0)); - return 0; - - case TIOCGSERIAL: - return isicom_get_serial_info(port, argp); - - case TIOCSSERIAL: - return isicom_set_serial_info(port, argp); - - default: - return -ENOIOCTLCMD; - } - return 0; -} - -/* set_termios et all */ -static void isicom_set_termios(struct tty_struct *tty, - struct termios *old_termios) -{ - struct isi_port *port = tty->driver_data; - - if (isicom_paranoia_check(port, tty->name, "isicom_set_termios")) - return; - - if (tty->termios->c_cflag == old_termios->c_cflag && - tty->termios->c_iflag == old_termios->c_iflag) - return; - - isicom_config_port(port); - - if ((old_termios->c_cflag & CRTSCTS) && - !(tty->termios->c_cflag & CRTSCTS)) { - tty->hw_stopped = 0; - isicom_start(tty); - } -} - -/* throttle et all */ -static void isicom_throttle(struct tty_struct *tty) -{ - struct isi_port *port = tty->driver_data; - struct isi_board *card = port->card; - - if (isicom_paranoia_check(port, tty->name, "isicom_throttle")) - return; - - /* tell the card that this port cannot handle any more data for now */ - card->port_status &= ~(1 << port->channel); - outw(card->port_status, card->base + 0x02); -} - -/* unthrottle et all */ -static void isicom_unthrottle(struct tty_struct *tty) -{ - struct isi_port *port = tty->driver_data; - struct isi_board *card = port->card; - - if (isicom_paranoia_check(port, tty->name, "isicom_unthrottle")) - return; - - /* tell the card that this port is ready to accept more data */ - card->port_status |= (1 << port->channel); - outw(card->port_status, card->base + 0x02); -} - -/* stop et all */ -static void isicom_stop(struct tty_struct *tty) -{ - struct isi_port *port = tty->driver_data; - - if (isicom_paranoia_check(port, tty->name, "isicom_stop")) - return; - - /* this tells the transmitter not to consider this port for - data output to the card. */ - port->status &= ~ISI_TXOK; -} - -/* start et all */ -static void isicom_start(struct tty_struct *tty) -{ - struct isi_port *port = tty->driver_data; - - if (isicom_paranoia_check(port, tty->name, "isicom_start")) - return; - - /* this tells the transmitter to consider this port for - data output to the card. */ - port->status |= ISI_TXOK; -} - -/* hangup et all */ -static void do_isicom_hangup(void *data) -{ - struct isi_port *port = data; - struct tty_struct *tty; - - tty = port->tty; - if (tty) - tty_hangup(tty); -} - -static void isicom_hangup(struct tty_struct *tty) -{ - struct isi_port *port = tty->driver_data; - - if (isicom_paranoia_check(port, tty->name, "isicom_hangup")) - return; - - isicom_shutdown_port(port); - port->count = 0; - port->flags &= ~ASYNC_NORMAL_ACTIVE; - port->tty = NULL; - wake_up_interruptible(&port->open_wait); -} - -/* flush_buffer et all */ -static void isicom_flush_buffer(struct tty_struct *tty) -{ - struct isi_port *port = tty->driver_data; - struct isi_board *card = port->card; - unsigned long flags; - - if (isicom_paranoia_check(port, tty->name, "isicom_flush_buffer")) - return; - - spin_lock_irqsave(&card->card_lock, flags); - port->xmit_cnt = port->xmit_head = port->xmit_tail = 0; - spin_unlock_irqrestore(&card->card_lock, flags); - - wake_up_interruptible(&tty->write_wait); - tty_wakeup(tty); -} - -/* - * Driver init and deinit functions - */ - -static int __devinit isicom_register_ioregion(struct pci_dev *pdev, - const unsigned int index) -{ - struct isi_board *board = pci_get_drvdata(pdev); - - if (!board->base) - return -EINVAL; - - if (!request_region(board->base, 16, ISICOM_NAME)) { - dev_dbg(&pdev->dev, "I/O Region 0x%lx-0x%lx is busy. Card%d " - "will be disabled.\n", board->base, board->base + 15, - index + 1); - return -EBUSY; - } - - return 0; -} - -static void isicom_unregister_ioregion(struct pci_dev *pdev) -{ - struct isi_board *board = pci_get_drvdata(pdev); - - if (!board->base) - return; - - release_region(board->base, 16); - dev_dbg(&pdev->dev, "I/O Region 0x%lx-0x%lx released.\n", - board->base, board->base + 15); - board->base = 0; -} - -static struct tty_operations isicom_ops = { - .open = isicom_open, - .close = isicom_close, - .write = isicom_write, - .put_char = isicom_put_char, - .flush_chars = isicom_flush_chars, - .write_room = isicom_write_room, - .chars_in_buffer = isicom_chars_in_buffer, - .ioctl = isicom_ioctl, - .set_termios = isicom_set_termios, - .throttle = isicom_throttle, - .unthrottle = isicom_unthrottle, - .stop = isicom_stop, - .start = isicom_start, - .hangup = isicom_hangup, - .flush_buffer = isicom_flush_buffer, - .tiocmget = isicom_tiocmget, - .tiocmset = isicom_tiocmset, -}; - -static int __devinit isicom_register_tty_driver(void) -{ - int error = -ENOMEM; - - /* tty driver structure initialization */ - isicom_normal = alloc_tty_driver(PORT_COUNT); - if (!isicom_normal) - goto end; - - isicom_normal->owner = THIS_MODULE; - isicom_normal->name = "ttyM"; - isicom_normal->devfs_name = "isicom/"; - isicom_normal->major = ISICOM_NMAJOR; - isicom_normal->minor_start = 0; - isicom_normal->type = TTY_DRIVER_TYPE_SERIAL; - isicom_normal->subtype = SERIAL_TYPE_NORMAL; - isicom_normal->init_termios = tty_std_termios; - isicom_normal->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | - CLOCAL; - isicom_normal->flags = TTY_DRIVER_REAL_RAW; - tty_set_operations(isicom_normal, &isicom_ops); - - if ((error = tty_register_driver(isicom_normal))) { - pr_dbg("Couldn't register the dialin driver, error=%d\n", - error); - put_tty_driver(isicom_normal); - } -end: - return error; -} - -static void isicom_unregister_tty_driver(void) -{ - int error; - - if ((error = tty_unregister_driver(isicom_normal))) - pr_dbg("couldn't unregister normal driver, error=%d.\n", error); - - put_tty_driver(isicom_normal); -} - -static int __devinit isicom_register_isr(struct pci_dev *pdev, - const unsigned int index) -{ - struct isi_board *board = pci_get_drvdata(pdev); - unsigned long irqflags = SA_INTERRUPT; - int retval = -EINVAL; - - if (!board->base) - goto end; - - if (board->isa == NO) - irqflags |= SA_SHIRQ; - - retval = request_irq(board->irq, isicom_interrupt, irqflags, - ISICOM_NAME, board); - if (retval < 0) - dev_warn(&pdev->dev, "Could not install handler at Irq %d. " - "Card%d will be disabled.\n", board->irq, index + 1); - else - retval = 0; -end: - return retval; -} - -static int __devinit reset_card(struct pci_dev *pdev, - const unsigned int card, unsigned int *signature) -{ - struct isi_board *board = pci_get_drvdata(pdev); - unsigned long base = board->base; - unsigned int portcount = 0; - int retval = 0; - - dev_dbg(&pdev->dev, "ISILoad:Resetting Card%d at 0x%lx\n", card + 1, - base); - - inw(base + 0x8); - - mdelay(10); - - outw(0, base + 0x8); /* Reset */ - - msleep(3000); - - *signature = inw(base + 0x4) & 0xff; - - if (board->isa == YES) { - if (!(inw(base + 0xe) & 0x1) || (inw(base + 0x2))) { - dev_dbg(&pdev->dev, "base+0x2=0x%lx, base+0xe=0x%lx\n", - inw(base + 0x2), inw(base + 0xe)); - dev_err(&pdev->dev, "ISILoad:ISA Card%d reset failure " - "(Possible bad I/O Port Address 0x%lx).\n", - card + 1, base); - retval = -EIO; - goto end; - } - } else { - portcount = inw(base + 0x2); - if (!(inw(base + 0xe) & 0x1) || ((portcount != 0) && - (portcount != 4) && (portcount != 8))) { - dev_dbg(&pdev->dev, "base+0x2=0x%lx, base+0xe=0x%lx\n", - inw(base + 0x2), inw(base + 0xe)); - dev_err(&pdev->dev, "ISILoad:PCI Card%d reset failure " - "(Possible bad I/O Port Address 0x%lx).\n", - card + 1, base); - retval = -EIO; - goto end; - } - } - - switch (*signature) { - case 0xa5: - case 0xbb: - case 0xdd: - board->port_count = (board->isa == NO && portcount == 4) ? 4 : - 8; - board->shift_count = 12; - break; - case 0xcc: - board->port_count = 16; - board->shift_count = 11; - break; - default: - dev_warn(&pdev->dev, "ISILoad:Card%d reset failure (Possible " - "bad I/O Port Address 0x%lx).\n", card + 1, base); - dev_dbg(&pdev->dev, "Sig=0x%lx\n", signature); - retval = -EIO; - } - dev_info(&pdev->dev, "-Done\n"); - -end: - return retval; -} - -static inline int WaitTillCardIsFree(u16 base) -{ - unsigned long count = 0; - - while (!(inw(base + 0xe) & 0x1) && count++ < 100) - msleep(5); - - return !(inw(base + 0xe) & 0x1); -} - -static int __devinit load_firmware(struct pci_dev *pdev, - const unsigned int index, const unsigned int signature) -{ - struct isi_board *board = pci_get_drvdata(pdev); - const struct firmware *fw; - unsigned long base = board->base; - unsigned int a; - u16 word_count, status; - int retval = -EIO; - char *name; - u8 *data; - - struct stframe { - u16 addr; - u16 count; - u8 data[0]; - } *frame; - - switch (signature) { - case 0xa5: - name = "isi608.bin"; - break; - case 0xbb: - name = "isi608em.bin"; - break; - case 0xcc: - name = "isi616em.bin"; - break; - case 0xdd: - name = "isi4608.bin"; - break; - case 0xee: - name = "isi4616.bin"; - break; - default: - dev_err(&pdev->dev, "Unknown signature.\n"); - goto end; - } - - retval = request_firmware(&fw, name, &pdev->dev); - if (retval) - goto end; - - for (frame = (struct stframe *)fw->data; - frame < (struct stframe *)(fw->data + fw->size); - frame++) { - if (WaitTillCardIsFree(base)) - goto errrelfw; - - outw(0xf0, base); /* start upload sequence */ - outw(0x00, base); - outw(frame->addr, base); /* lsb of address */ - - word_count = frame->count / 2 + frame->count % 2; - outw(word_count, base); - InterruptTheCard(base); - - udelay(100); /* 0x2f */ - - if (WaitTillCardIsFree(base)) - goto errrelfw; - - if ((status = inw(base + 0x4)) != 0) { - dev_warn(&pdev->dev, "Card%d rejected load header:\n" - "Address:0x%x\nCount:0x%x\nStatus:0x%x\n", - index + 1, frame->addr, frame->count, status); - goto errrelfw; - } - outsw(base, frame->data, word_count); - - InterruptTheCard(base); - - udelay(50); /* 0x0f */ - - if (WaitTillCardIsFree(base)) - goto errrelfw; - - if ((status = inw(base + 0x4)) != 0) { - dev_err(&pdev->dev, "Card%d got out of sync.Card " - "Status:0x%x\n", index + 1, status); - goto errrelfw; - } - } - - retval = -EIO; - - if (WaitTillCardIsFree(base)) - goto errrelfw; - - outw(0xf2, base); - outw(0x800, base); - outw(0x0, base); - outw(0x0, base); - InterruptTheCard(base); - outw(0x0, base + 0x4); /* for ISI4608 cards */ - -/* XXX: should we test it by reading it back and comparing with original like - * in load firmware package? */ - for (frame = (struct stframe*)fw->data; - frame < (struct stframe*)(fw->data + fw->size); - frame++) { - if (WaitTillCardIsFree(base)) - goto errrelfw; - - outw(0xf1, base); /* start download sequence */ - outw(0x00, base); - outw(frame->addr, base); /* lsb of address */ - - word_count = (frame->count >> 1) + frame->count % 2; - outw(word_count + 1, base); - InterruptTheCard(base); - - udelay(50); /* 0xf */ - - if (WaitTillCardIsFree(base)) - goto errrelfw; - - if ((status = inw(base + 0x4)) != 0) { - dev_warn(&pdev->dev, "Card%d rejected verify header:\n" - "Address:0x%x\nCount:0x%x\nStatus: 0x%x\n", - index + 1, frame->addr, frame->count, status); - goto errrelfw; - } - - data = kmalloc(word_count * 2, GFP_KERNEL); - inw(base); - insw(base, data, word_count); - InterruptTheCard(base); - - for (a = 0; a < frame->count; a++) - if (data[a] != frame->data[a]) { - kfree(data); - dev_err(&pdev->dev, "Card%d, firmware upload " - "failed\n", index + 1); - goto errrelfw; - } - kfree(data); - - udelay(50); /* 0xf */ - - if (WaitTillCardIsFree(base)) - goto errrelfw; - - if ((status = inw(base + 0x4)) != 0) { - dev_err(&pdev->dev, "Card%d verify got out of sync. " - "Card Status:0x%x\n", index + 1, status); - goto errrelfw; - } - } - - board->status |= FIRMWARE_LOADED; - retval = 0; - -errrelfw: - release_firmware(fw); -end: - return retval; -} - -/* - * Insmod can set static symbols so keep these static - */ -static int io[4]; -static int irq[4]; -static int card; - -static int __devinit isicom_probe(struct pci_dev *pdev, - const struct pci_device_id *ent) -{ - unsigned int ioaddr, signature, index; - int retval = -EPERM; - u8 pciirq; - struct isi_board *board = NULL; - - if (card >= BOARD_COUNT) - goto err; - - ioaddr = pci_resource_start(pdev, 3); - /* i.e at offset 0x1c in the PCI configuration register space. */ - pciirq = pdev->irq; - dev_info(&pdev->dev, "ISI PCI Card(Device ID 0x%x)\n", ent->device); - - /* allot the first empty slot in the array */ - for (index = 0; index < BOARD_COUNT; index++) - if (isi_card[index].base == 0) { - board = &isi_card[index]; - break; - } - - board->base = ioaddr; - board->irq = pciirq; - board->isa = NO; - card++; - - pci_set_drvdata(pdev, board); - - retval = isicom_register_ioregion(pdev, index); - if (retval < 0) - goto err; - - retval = isicom_register_isr(pdev, index); - if (retval < 0) - goto errunrr; - - retval = reset_card(pdev, index, &signature); - if (retval < 0) - goto errunri; - - retval = load_firmware(pdev, index, signature); - if (retval < 0) - goto errunri; - - return 0; - -errunri: - free_irq(board->irq, board); -errunrr: - isicom_unregister_ioregion(pdev); -err: - board->base = 0; - return retval; -} - -static void __devexit isicom_remove(struct pci_dev *pdev) -{ - struct isi_board *board = pci_get_drvdata(pdev); - - free_irq(board->irq, board); - isicom_unregister_ioregion(pdev); -} - -static int __devinit isicom_setup(void) -{ - int retval, idx, channel; - struct isi_port *port; - - card = 0; - memset(isi_ports, 0, sizeof(isi_ports)); - - for(idx = 0; idx < BOARD_COUNT; idx++) { - port = &isi_ports[idx * 16]; - isi_card[idx].ports = port; - spin_lock_init(&isi_card[idx].card_lock); - for (channel = 0; channel < 16; channel++, port++) { - port->magic = ISICOM_MAGIC; - port->card = &isi_card[idx]; - port->channel = channel; - port->close_delay = 50 * HZ/100; - port->closing_wait = 3000 * HZ/100; - INIT_WORK(&port->hangup_tq, do_isicom_hangup, port); - INIT_WORK(&port->bh_tqueue, isicom_bottomhalf, port); - port->status = 0; - init_waitqueue_head(&port->open_wait); - init_waitqueue_head(&port->close_wait); - /* . . . */ - } - isi_card[idx].base = 0; - isi_card[idx].irq = 0; - - if (!io[idx]) - continue; - - if (irq[idx] == 2 || irq[idx] == 3 || irq[idx] == 4 || - irq[idx] == 5 || irq[idx] == 7 || - irq[idx] == 10 || irq[idx] == 11 || - irq[idx] == 12 || irq[idx] == 15) { - printk(KERN_ERR "ISICOM: ISA not supported yet.\n"); - retval = -EINVAL; - goto error; - } else - printk(KERN_ERR "ISICOM: Irq %d unsupported. " - "Disabling Card%d...\n", irq[idx], idx + 1); - } - - retval = isicom_register_tty_driver(); - if (retval < 0) - goto error; - - retval = pci_register_driver(&isicom_driver); - if (retval < 0) { - printk(KERN_ERR "ISICOM: Unable to register pci driver.\n"); - goto errtty; - } - - init_timer(&tx); - tx.expires = jiffies + 1; - tx.data = 0; - tx.function = isicom_tx; - re_schedule = 1; - add_timer(&tx); - - return 0; -errtty: - isicom_unregister_tty_driver(); -error: - return retval; -} - -static void __exit isicom_exit(void) -{ - unsigned int index = 0; - - re_schedule = 0; - - while (re_schedule != 2 && index++ < 100) - msleep(10); - - pci_unregister_driver(&isicom_driver); - isicom_unregister_tty_driver(); -} - -module_init(isicom_setup); -module_exit(isicom_exit); - -MODULE_AUTHOR("MultiTech"); -MODULE_DESCRIPTION("Driver for the ISI series of cards by MultiTech"); -MODULE_LICENSE("GPL"); -module_param_array(io, int, NULL, 0); -MODULE_PARM_DESC(io, "I/O ports for the cards"); -module_param_array(irq, int, NULL, 0); -MODULE_PARM_DESC(irq, "Interrupts for the cards"); |