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V4L/DVB (13736): [Mantis] Implement CAM Plug IN and Unplug events

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Sigh! how i wish things were simpler ...

Signed-off-by: Manu Abraham <manu@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Manu Abraham 2009-12-04 05:06:00 -03:00 committed by Mauro Carvalho Chehab
parent fadfa070d3
commit 8ce571f5e7
2 changed files with 74 additions and 0 deletions
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8
drivers/media/dvb/mantis/mantis_link.h
View File

@ -31,6 +31,12 @@ struct mantis_slot {
u32 timeout;
};
/* Physical layer */
enum mantis_slot_state {
MODULE_INSERTED = 3,
MODULE_XTRACTED = 4
};
struct mantis_ca {
struct mantis_slot slot;
@ -44,6 +50,8 @@ struct mantis_ca {
enum mantis_sbuf_status sbuf_status;
enum mantis_slot_state slot_state;
struct dvb_device *ca_dev;
void *ca_priv;
};

66
drivers/media/dvb/mantis/mantis_pcmcia.c
View File

@ -19,11 +19,75 @@
*/
#include "mantis_common.h"
#include "mantis_link.h" /* temporary due to physical layer stuff */
/*
* If Slot state is already PLUG_IN event and we are called
* again, definitely it is jitter alone
*/
void mantis_event_cam_plugin(struct mantis_ca *ca)
{
struct mantis_pci *mantis = ca->ca_priv;
u32 gpif_irqcfg;
if (ca->slot_state == MODULE_XTRACTED) {
dprintk(mantis->verbose, MANTIS_DEBUG, 1, "Event: CAM Plugged IN: Adapter(%d) Slot(0)", mantis->num);
udelay(50);
mmwrite(0xda000000, MANTIS_CARD_RESET);
gpif_irqcfg = mmread(MANTIS_GPIF_IRQCFG);
gpif_irqcfg |= MANTIS_MASK_PLUGOUT;
gpif_irqcfg &= ~MANTIS_MASK_PLUGIN;
mmwrite(gpif_irqcfg, MANTIS_GPIF_IRQCFG);
udelay(500);
ca->slot_state = MODULE_INSERTED;
}
udelay(100);
}
/*
* If Slot state is already UN_PLUG event and we are called
* again, definitely it is jitter alone
*/
void mantis_event_cam_unplug(struct mantis_ca *ca)
{
struct mantis_pci *mantis = ca->ca_priv;
u32 gpif_irqcfg;
if (ca->slot_state == MODULE_INSERTED) {
dprintk(mantis->verbose, MANTIS_DEBUG, 1, "Event: CAM Unplugged: Adapter(%d) Slot(0)", mantis->num);
udelay(50);
mmwrite(0x00da0000, MANTIS_CARD_RESET);
gpif_irqcfg = mmread(MANTIS_GPIF_IRQCFG);
gpif_irqcfg |= MANTIS_MASK_PLUGIN;
gpif_irqcfg &= ~MANTIS_MASK_PLUGOUT;
mmwrite(gpif_irqcfg, MANTIS_GPIF_IRQCFG);
udelay(500);
ca->slot_state = MODULE_XTRACTED;
}
udelay(100);
}
int mantis_pcmcia_init(struct mantis_ca *ca)
{
struct mantis_pci *mantis = ca->ca_priv;
u32 gpif_stat, card_stat;
gpif_stat = mmread(MANTIS_GPIF_STATUS);
card_stat = mmread(MANTIS_GPIF_IRQCFG);
if (gpif_stat & MANTIS_GPIF_DETSTAT) {
dprintk(mantis->verbose, MANTIS_DEBUG, 1, "CAM found on Adapter(%d) Slot(0)", mantis->num);
mmwrite(card_stat | MANTIS_MASK_PLUGOUT, MANTIS_GPIF_IRQCFG);
ca->slot_state = MODULE_INSERTED;
} else {
dprintk(mantis->verbose, MANTIS_DEBUG, 1, "Empty Slot on Adapter(%d) Slot(0)", mantis->num);
mmwrite(card_stat | MANTIS_MASK_PLUGIN, MANTIS_GPIF_IRQCFG);
ca->slot_state = MODULE_XTRACTED;
}
return 0;
}
@ -31,4 +95,6 @@ void mantis_pcmcia_exit(struct mantis_ca *ca)
{
struct mantis_pci *mantis = ca->ca_priv;
mmwrite(mmread(MANTIS_GPIF_STATUS) & (~MANTIS_CARD_PLUGOUT | ~MANTIS_CARD_PLUGIN), MANTIS_GPIF_STATUS);
mmwrite(mmread(MANTIS_INT_MASK) & ~MANTIS_INT_IRQ0, MANTIS_INT_MASK);
}