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1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 Mantis PCI bridge driver4 5 Copyright (C) Manu Abraham (abraham.manu@gmail.com)6 7*/8 9#include <linux/kernel.h>10 11#include <linux/signal.h>12#include <linux/sched.h>13#include <linux/interrupt.h>14#include <asm/io.h>15 16#include <media/dmxdev.h>17#include <media/dvbdev.h>18#include <media/dvb_demux.h>19#include <media/dvb_frontend.h>20#include <media/dvb_net.h>21 22#include "mantis_common.h"23#include "mantis_link.h" /* temporary due to physical layer stuff */24#include "mantis_reg.h"25 26/*27 * If Slot state is already PLUG_IN event and we are called28 * again, definitely it is jitter alone29 */30void mantis_event_cam_plugin(struct mantis_ca *ca)31{32 struct mantis_pci *mantis = ca->ca_priv;33 34 u32 gpif_irqcfg;35 36 if (ca->slot_state == MODULE_XTRACTED) {37 dprintk(MANTIS_DEBUG, 1, "Event: CAM Plugged IN: Adapter(%d) Slot(0)", mantis->num);38 udelay(50);39 mmwrite(0xda000000, MANTIS_CARD_RESET);40 gpif_irqcfg = mmread(MANTIS_GPIF_IRQCFG);41 gpif_irqcfg |= MANTIS_MASK_PLUGOUT;42 gpif_irqcfg &= ~MANTIS_MASK_PLUGIN;43 mmwrite(gpif_irqcfg, MANTIS_GPIF_IRQCFG);44 udelay(500);45 ca->slot_state = MODULE_INSERTED;46 }47 udelay(100);48}49 50/*51 * If Slot state is already UN_PLUG event and we are called52 * again, definitely it is jitter alone53 */54void mantis_event_cam_unplug(struct mantis_ca *ca)55{56 struct mantis_pci *mantis = ca->ca_priv;57 58 u32 gpif_irqcfg;59 60 if (ca->slot_state == MODULE_INSERTED) {61 dprintk(MANTIS_DEBUG, 1, "Event: CAM Unplugged: Adapter(%d) Slot(0)", mantis->num);62 udelay(50);63 mmwrite(0x00da0000, MANTIS_CARD_RESET);64 gpif_irqcfg = mmread(MANTIS_GPIF_IRQCFG);65 gpif_irqcfg |= MANTIS_MASK_PLUGIN;66 gpif_irqcfg &= ~MANTIS_MASK_PLUGOUT;67 mmwrite(gpif_irqcfg, MANTIS_GPIF_IRQCFG);68 udelay(500);69 ca->slot_state = MODULE_XTRACTED;70 }71 udelay(100);72}73 74int mantis_pcmcia_init(struct mantis_ca *ca)75{76 struct mantis_pci *mantis = ca->ca_priv;77 78 u32 gpif_stat, card_stat;79 80 mantis_unmask_ints(mantis, MANTIS_INT_IRQ0);81 gpif_stat = mmread(MANTIS_GPIF_STATUS);82 card_stat = mmread(MANTIS_GPIF_IRQCFG);83 84 if (gpif_stat & MANTIS_GPIF_DETSTAT) {85 dprintk(MANTIS_DEBUG, 1, "CAM found on Adapter(%d) Slot(0)", mantis->num);86 mmwrite(card_stat | MANTIS_MASK_PLUGOUT, MANTIS_GPIF_IRQCFG);87 ca->slot_state = MODULE_INSERTED;88 dvb_ca_en50221_camchange_irq(&ca->en50221,89 0,90 DVB_CA_EN50221_CAMCHANGE_INSERTED);91 } else {92 dprintk(MANTIS_DEBUG, 1, "Empty Slot on Adapter(%d) Slot(0)", mantis->num);93 mmwrite(card_stat | MANTIS_MASK_PLUGIN, MANTIS_GPIF_IRQCFG);94 ca->slot_state = MODULE_XTRACTED;95 dvb_ca_en50221_camchange_irq(&ca->en50221,96 0,97 DVB_CA_EN50221_CAMCHANGE_REMOVED);98 }99 100 return 0;101}102 103void mantis_pcmcia_exit(struct mantis_ca *ca)104{105 struct mantis_pci *mantis = ca->ca_priv;106 107 mmwrite(mmread(MANTIS_GPIF_STATUS) & (~MANTIS_CARD_PLUGOUT | ~MANTIS_CARD_PLUGIN), MANTIS_GPIF_STATUS);108 mantis_mask_ints(mantis, MANTIS_INT_IRQ0);109}110