1 files changed, 120 insertions, 0 deletions

diff --git a/drivers/media/dvb/mantis/mantis_pcmcia.c b/drivers/media/dvb/mantis/mantis_pcmcia.c
new file mode 100644
index 000000000000..5cb545b913f6
--- /dev/null
+++ b/drivers/media/dvb/mantis/mantis_pcmcia.c
@@ -0,0 +1,120 @@
+/*
+        Mantis PCI bridge driver
+
+        Copyright (C) Manu Abraham (abraham.manu@gmail.com)
+
+        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.
+
+        This program is distributed in the hope that it will be useful,
+        but WITHOUT ANY WARRANTY; without even the implied warranty of
+        MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+        GNU General Public License for more details.
+
+        You should have received a copy of the GNU General Public License
+        along with this program; if not, write to the Free Software
+        Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include <linux/kernel.h>
+
+#include <linux/signal.h>
+#include <linux/sched.h>
+#include <linux/interrupt.h>
+
+#include "dmxdev.h"
+#include "dvbdev.h"
+#include "dvb_demux.h"
+#include "dvb_frontend.h"
+#include "dvb_net.h"
+
+#include "mantis_common.h"
+#include "mantis_link.h" /* temporary due to physical layer stuff */
+#include "mantis_reg.h"
+
+/*
+ * 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_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_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;
+
+        mmwrite(mmread(MANTIS_INT_MASK) | MANTIS_INT_IRQ0, MANTIS_INT_MASK);
+        gpif_stat = mmread(MANTIS_GPIF_STATUS);
+        card_stat = mmread(MANTIS_GPIF_IRQCFG);
+
+        if (gpif_stat & MANTIS_GPIF_DETSTAT) {
+                dprintk(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;
+                dvb_ca_en50221_camchange_irq(&ca->en50221,
+                                             0,
+                                             DVB_CA_EN50221_CAMCHANGE_INSERTED);
+        } else {
+                dprintk(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;
+                dvb_ca_en50221_camchange_irq(&ca->en50221,
+                                             0,
+                                             DVB_CA_EN50221_CAMCHANGE_REMOVED);
+        }
+
+        return 0;
+}
+
+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);
+}