X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=drivers%2Fserial%2Fserial_cs.c;h=2c70773543e052b94f98931557e967c9eb13a9eb;hb=33b37a33c242542fac2980b8ccd90977388b7a8d;hp=1fe8cafebe38e7de8386eaf5dce2f369fb7f5532;hpb=fba395eee7d3f342ca739c20f5b3ee635d0420a0;p=powerpc.git diff --git a/drivers/serial/serial_cs.c b/drivers/serial/serial_cs.c index 1fe8cafebe..2c70773543 100644 --- a/drivers/serial/serial_cs.c +++ b/drivers/serial/serial_cs.c @@ -41,6 +41,7 @@ #include #include #include +#include #include #include #include @@ -102,6 +103,8 @@ struct serial_info { int multi; int slave; int manfid; + int prodid; + int c950ctrl; dev_node_t node[4]; int line[4]; }; @@ -113,9 +116,36 @@ struct serial_cfg_mem { }; -static void serial_config(struct pcmcia_device * link); +static int serial_config(struct pcmcia_device * link); +static void wakeup_card(struct serial_info *info) +{ + int ctrl = info->c950ctrl; + + if (info->manfid == MANFID_OXSEMI) { + outb(12, ctrl + 1); + } else if (info->manfid == MANFID_POSSIO && info->prodid == PRODID_POSSIO_GCC) { + /* request_region? oxsemi branch does no request_region too... */ + /* This sequence is needed to properly initialize MC45 attached to OXCF950. + * I tried decreasing these msleep()s, but it worked properly (survived + * 1000 stop/start operations) with these timeouts (or bigger). */ + outb(0xA, ctrl + 1); + msleep(100); + outb(0xE, ctrl + 1); + msleep(300); + outb(0xC, ctrl + 1); + msleep(100); + outb(0xE, ctrl + 1); + msleep(200); + outb(0xF, ctrl + 1); + msleep(100); + outb(0xE, ctrl + 1); + msleep(100); + outb(0xC, ctrl + 1); + } +} + /*====================================================================== After a card is removed, serial_remove() will unregister @@ -128,50 +158,40 @@ static void serial_remove(struct pcmcia_device *link) struct serial_info *info = link->priv; int i; - link->state &= ~DEV_PRESENT; - DEBUG(0, "serial_release(0x%p)\n", link); /* * Recheck to see if the device is still configured. */ - if (info->p_dev->state & DEV_CONFIG) { - for (i = 0; i < info->ndev; i++) - serial8250_unregister_port(info->line[i]); - - info->p_dev->dev_node = NULL; + for (i = 0; i < info->ndev; i++) + serial8250_unregister_port(info->line[i]); - if (!info->slave) - pcmcia_disable_device(link); + info->p_dev->dev_node = NULL; - info->p_dev->state &= ~DEV_CONFIG; - } + if (!info->slave) + pcmcia_disable_device(link); } static int serial_suspend(struct pcmcia_device *link) { - if (link->state & DEV_CONFIG) { - struct serial_info *info = link->priv; - int i; - - for (i = 0; i < info->ndev; i++) - serial8250_suspend_port(info->line[i]); + struct serial_info *info = link->priv; + int i; - if (info->slave) - link->state &= DEV_SUSPEND_NORELEASE; - } + for (i = 0; i < info->ndev; i++) + serial8250_suspend_port(info->line[i]); return 0; } static int serial_resume(struct pcmcia_device *link) { - if (DEV_OK(link)) { + if (pcmcia_dev_present(link)) { struct serial_info *info = link->priv; int i; for (i = 0; i < info->ndev; i++) serial8250_resume_port(info->line[i]); + wakeup_card(info); } return 0; @@ -210,10 +230,7 @@ static int serial_probe(struct pcmcia_device *link) } link->conf.IntType = INT_MEMORY_AND_IO; - link->state |= DEV_PRESENT | DEV_CONFIG_PENDING; - serial_config(link); - - return 0; + return serial_config(link); } /*====================================================================== @@ -517,15 +534,23 @@ static int multi_config(struct pcmcia_device * link) } /* The Oxford Semiconductor OXCF950 cards are in fact single-port: - 8 registers are for the UART, the others are extra registers */ - if (info->manfid == MANFID_OXSEMI) { + * 8 registers are for the UART, the others are extra registers. + * Siemen's MC45 PCMCIA (Possio's GCC) is OXCF950 based too. + */ + if (info->manfid == MANFID_OXSEMI || (info->manfid == MANFID_POSSIO && + info->prodid == PRODID_POSSIO_GCC)) { + int err; + if (cf->index == 1 || cf->index == 3) { - setup_serial(link, info, base2, link->irq.AssignedIRQ); - outb(12, link->io.BasePort1 + 1); + err = setup_serial(link, info, base2, + link->irq.AssignedIRQ); + base2 = link->io.BasePort1; } else { - setup_serial(link, info, link->io.BasePort1, link->irq.AssignedIRQ); - outb(12, base2 + 1); + err = setup_serial(link, info, link->io.BasePort1, + link->irq.AssignedIRQ); } + info->c950ctrl = base2; + wakeup_card(info); rc = 0; goto free_cfg_mem; } @@ -553,7 +578,7 @@ free_cfg_mem: ======================================================================*/ -void serial_config(struct pcmcia_device * link) +static int serial_config(struct pcmcia_device * link) { struct serial_info *info = link->priv; struct serial_cfg_mem *cfg_mem; @@ -588,9 +613,6 @@ void serial_config(struct pcmcia_device * link) link->conf.ConfigBase = parse->config.base; link->conf.Present = parse->config.rmask[0]; - /* Configure card */ - link->state |= DEV_CONFIG; - /* Is this a compliant multifunction card? */ tuple->DesiredTuple = CISTPL_LONGLINK_MFC; tuple->Attributes = TUPLE_RETURN_COMMON | TUPLE_RETURN_LINK; @@ -600,6 +622,7 @@ void serial_config(struct pcmcia_device * link) tuple->DesiredTuple = CISTPL_MANFID; if (first_tuple(link, tuple, parse) == CS_SUCCESS) { info->manfid = parse->manfid.manf; + info->prodid = le16_to_cpu(buf[1]); for (i = 0; i < MULTI_COUNT; i++) if ((info->manfid == multi_id[i].manfid) && (parse->manfid.card == multi_id[i].prodid)) @@ -650,16 +673,15 @@ void serial_config(struct pcmcia_device * link) } link->dev_node = &info->node[0]; - link->state &= ~DEV_CONFIG_PENDING; kfree(cfg_mem); - return; + return 0; cs_failed: cs_error(link, last_fn, last_ret); failed: serial_remove(link); - link->state &= ~DEV_CONFIG_PENDING; kfree(cfg_mem); + return -ENODEV; } static struct pcmcia_device_id serial_ids[] = {