/*
* au1x00_check_status()
*/
static void au1x00_check_status(struct au1000_pcmcia_socket *skt)
{
unsigned int events;
debug("entering PCMCIA monitoring thread\n");
do {
unsigned int status;
unsigned long flags;
status = au1x00_pcmcia_skt_state(skt);
spin_lock_irqsave(&status_lock, flags);
events = (status ^ skt->status) & skt->cs_state.csc_mask;
skt->status = status;
spin_unlock_irqrestore(&status_lock, flags);
debug("events: %s%s%s%s%s%s\n",
events == 0 ? "<NONE>" : "",
events & SS_DETECT ? "DETECT " : "",
events & SS_READY ? "READY " : "",
events & SS_BATDEAD ? "BATDEAD " : "",
events & SS_BATWARN ? "BATWARN " : "",
events & SS_STSCHG ? "STSCHG " : "");
if (events)
pcmcia_parse_events(&skt->socket, events);
} while (events);
}
static irqreturn_t cdirq(int irq, void *data)
{
struct xxs1500_pcmcia_sock *sock = data;
pcmcia_parse_events(&sock->socket, SS_DETECT);
return IRQ_HANDLED;
}
static irqreturn_t tcic_interrupt(int irq, void *dev)
{
int i, quick = 0;
u_char latch, sstat;
u_short psock;
u_int events;
static volatile int active = 0;
if (active) {
printk(KERN_NOTICE "tcic: reentered interrupt handler!\n");
return IRQ_NONE;
} else
active = 1;
pr_debug("tcic_interrupt()\n");
for (i = 0; i < sockets; i++) {
psock = socket_table[i].psock;
tcic_setl(TCIC_ADDR, (psock << TCIC_ADDR_SS_SHFT)
| TCIC_ADDR_INDREG | TCIC_SCF1(psock));
sstat = tcic_getb(TCIC_SSTAT);
latch = sstat ^ socket_table[psock].last_sstat;
socket_table[i].last_sstat = sstat;
if (tcic_getb(TCIC_ICSR) & TCIC_ICSR_CDCHG) {
tcic_setb(TCIC_ICSR, TCIC_ICSR_CLEAR);
quick = 1;
}
if (latch == 0)
continue;
events = (latch & TCIC_SSTAT_CD) ? SS_DETECT : 0;
events |= (latch & TCIC_SSTAT_WP) ? SS_WRPROT : 0;
if (tcic_getw(TCIC_DATA) & TCIC_SCF1_IOSTS) {
events |= (latch & TCIC_SSTAT_LBAT1) ? SS_STSCHG : 0;
} else {
events |= (latch & TCIC_SSTAT_RDY) ? SS_READY : 0;
events |= (latch & TCIC_SSTAT_LBAT1) ? SS_BATDEAD : 0;
events |= (latch & TCIC_SSTAT_LBAT2) ? SS_BATWARN : 0;
}
if (events) {
pcmcia_parse_events(&socket_table[i].socket, events);
}
}
/* Schedule next poll, if needed */
if (((cs_irq == 0) || quick) && (!tcic_timer_pending)) {
poll_timer.expires = jiffies + (quick ? poll_quick : poll_interval);
add_timer(&poll_timer);
tcic_timer_pending = 1;
}
active = 0;
pr_debug("interrupt done\n");
return IRQ_HANDLED;
} /* tcic_interrupt */
/* the timer is primarily to kick this socket's pccardd */
static void electra_cf_timer(unsigned long _cf)
{
struct electra_cf_socket *cf = (void *) _cf;
int present = electra_cf_present(cf);
if (present != cf->present) {
cf->present = present;
pcmcia_parse_events(&cf->socket, SS_DETECT);
}
if (cf->active)
mod_timer(&cf->timer, jiffies + POLL_INTERVAL);
}
/* the timer is primarily to kick this socket's pccardd */
static void electra_cf_timer(struct timer_list *t)
{
struct electra_cf_socket *cf = from_timer(cf, t, timer);
int present = electra_cf_present(cf);
if (present != cf->present) {
cf->present = present;
pcmcia_parse_events(&cf->socket, SS_DETECT);
}
if (cf->active)
mod_timer(&cf->timer, jiffies + POLL_INTERVAL);
}
/* the timer is primarily to kick this socket's pccardd */
static void bfin_cf_timer(unsigned long _cf)
{
struct bfin_cf_socket *cf = (void *)_cf;
unsigned short present = bfin_cf_present(cf->cd_pfx);
if (present != cf->present) {
cf->present = present;
dev_dbg(&cf->pdev->dev, ": card %s\n",
present ? "present" : "gone");
pcmcia_parse_events(&cf->socket, SS_DETECT);
}
if (cf->active)
mod_timer(&cf->timer, jiffies + POLL_INTERVAL);
}
/* the timer is primarily to kick this socket's pccardd */
static void omap_cf_timer(unsigned long _cf)
{
struct omap_cf_socket *cf = (void *) _cf;
unsigned present = omap_cf_present();
if (present != cf->present) {
cf->present = present;
pr_debug("%s: card %s\n", driver_name,
present ? "present" : "gone");
pcmcia_parse_events(&cf->socket, SS_DETECT);
}
if (cf->active)
mod_timer(&cf->timer, jiffies + POLL_INTERVAL);
}
static irqreturn_t at91_cf_irq(int irq, void *_cf)
{
struct at91_cf_socket *cf = _cf;
if (irq == gpio_to_irq(cf->board->det_pin)) {
unsigned present = at91_cf_present(cf);
/* kick pccard as needed */
if (present != cf->present) {
cf->present = present;
dev_dbg(&cf->pdev->dev, "card %s\n",
present ? "present" : "gone");
pcmcia_parse_events(&cf->socket, SS_DETECT);
}
}
return IRQ_HANDLED;
}
static irqreturn_t at91_cf_irq(int irq, void *_cf, struct pt_regs *r)
{
struct at91_cf_socket *cf = (struct at91_cf_socket *) _cf;
if (irq == cf->board->det_pin) {
unsigned present = at91_cf_present(cf);
/* kick pccard as needed */
if (present != cf->present) {
cf->present = present;
pr_debug("%s: card %s\n", driver_name,
present ? "present" : "gone");
pcmcia_parse_events(&cf->socket, SS_DETECT);
}
}
return IRQ_HANDLED;
}
static irqreturn_t at91_cf_irq(int irq, void *_cf)
{
struct at91_cf_socket *cf = _cf;
if (irq == gpio_to_irq(cf->board->det_pin)) {
unsigned present = at91_cf_present(cf);
/* */
if (present != cf->present) {
cf->present = present;
pr_debug("%s: card %s\n", driver_name,
present ? "present" : "gone");
pcmcia_parse_events(&cf->socket, SS_DETECT);
}
}
return IRQ_HANDLED;
}
static irqreturn_t pcc_interrupt(int irq, void *dev)
{
int i;
u_int events = 0;
int handled = 0;
pr_debug("m32r_cfc: pcc_interrupt: irq=%d, dev=%p\n", irq, dev);
for (i = 0; i < pcc_sockets; i++) {
if (socket[i].cs_irq1 != irq && socket[i].cs_irq2 != irq)
continue;
handled = 1;
pr_debug("m32r_cfc: pcc_interrupt: socket %d irq 0x%02x ",
i, irq);
events |= SS_DETECT; /* insert or eject */
if (events)
pcmcia_parse_events(&socket[i].socket, events);
}
pr_debug("m32r_cfc: pcc_interrupt: done\n");
return IRQ_RETVAL(handled);
} /* pcc_interrupt */
/*
* socket polling timer callback
*/
static void bcm63xx_pcmcia_poll(unsigned long data)
{
struct bcm63xx_pcmcia_socket *skt;
unsigned int stat, events;
skt = (struct bcm63xx_pcmcia_socket *)data;
spin_lock_bh(&skt->lock);
stat = __get_socket_status(skt);
/* keep only changed bits, and mask with required one from the
* core */
events = (stat ^ skt->old_status) & skt->requested_state.csc_mask;
skt->old_status = stat;
spin_unlock_bh(&skt->lock);
if (events)
pcmcia_parse_events(&skt->socket, events);
mod_timer(&skt->timer,
jiffies + msecs_to_jiffies(BCM63XX_PCMCIA_POLL_RATE));
}
static irqreturn_t pd6729_interrupt(int irq, void *dev)
{
struct pd6729_socket *socket = (struct pd6729_socket *)dev;
int i;
int loopcount = 0;
int handled = 0;
unsigned int events, active = 0;
while (1) {
loopcount++;
if (loopcount > 20) {
printk(KERN_ERR "pd6729: infinite eventloop "
"in interrupt\n");
break;
}
active = 0;
for (i = 0; i < MAX_SOCKETS; i++) {
unsigned int csc;
/* card status change register */
csc = indirect_read(&socket[i], I365_CSC);
if (csc == 0) /* no events on this socket */
continue;
handled = 1;
events = 0;
if (csc & I365_CSC_DETECT) {
events |= SS_DETECT;
dev_vdbg(&socket[i].socket.dev,
"Card detected in socket %i!\n", i);
}
if (indirect_read(&socket[i], I365_INTCTL)
& I365_PC_IOCARD) {
/* For IO/CARDS, bit 0 means "read the card" */
events |= (csc & I365_CSC_STSCHG)
? SS_STSCHG : 0;
} else {
/* Check for battery/ready events */
events |= (csc & I365_CSC_BVD1)
? SS_BATDEAD : 0;
events |= (csc & I365_CSC_BVD2)
? SS_BATWARN : 0;
events |= (csc & I365_CSC_READY)
? SS_READY : 0;
}
if (events)
pcmcia_parse_events(&socket[i].socket, events);
active |= events;
}
if (active == 0) /* no more events to handle */
break;
}
return IRQ_RETVAL(handled);
}