1/* 2 Mantis PCI bridge driver 3 4 Copyright (C) Manu Abraham (abraham.manu@gmail.com) 5 6 This program is free software; you can redistribute it and/or modify 7 it under the terms of the GNU General Public License as published by 8 the Free Software Foundation; either version 2 of the License, or 9 (at your option) any later version. 10 11 This program is distributed in the hope that it will be useful, 12 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 GNU General Public License for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with this program; if not, write to the Free Software 18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 19*/ 20 21#include <linux/kernel.h> 22 23#include <linux/signal.h> 24#include <linux/sched.h> 25#include <linux/interrupt.h> 26 27#include "dmxdev.h" 28#include "dvbdev.h" 29#include "dvb_demux.h" 30#include "dvb_frontend.h" 31#include "dvb_net.h" 32 33#include "mantis_common.h" 34#include "mantis_link.h" /* temporary due to physical layer stuff */ 35#include "mantis_reg.h" 36 37/* 38 * If Slot state is already PLUG_IN event and we are called 39 * again, definitely it is jitter alone 40 */ 41void mantis_event_cam_plugin(struct mantis_ca *ca) 42{ 43 struct mantis_pci *mantis = ca->ca_priv; 44 45 u32 gpif_irqcfg; 46 47 if (ca->slot_state == MODULE_XTRACTED) { 48 dprintk(MANTIS_DEBUG, 1, "Event: CAM Plugged IN: Adapter(%d) Slot(0)", mantis->num); 49 udelay(50); 50 mmwrite(0xda000000, MANTIS_CARD_RESET); 51 gpif_irqcfg = mmread(MANTIS_GPIF_IRQCFG); 52 gpif_irqcfg |= MANTIS_MASK_PLUGOUT; 53 gpif_irqcfg &= ~MANTIS_MASK_PLUGIN; 54 mmwrite(gpif_irqcfg, MANTIS_GPIF_IRQCFG); 55 udelay(500); 56 ca->slot_state = MODULE_INSERTED; 57 } 58 udelay(100); 59} 60 61/* 62 * If Slot state is already UN_PLUG event and we are called 63 * again, definitely it is jitter alone 64 */ 65void mantis_event_cam_unplug(struct mantis_ca *ca) 66{ 67 struct mantis_pci *mantis = ca->ca_priv; 68 69 u32 gpif_irqcfg; 70 71 if (ca->slot_state == MODULE_INSERTED) { 72 dprintk(MANTIS_DEBUG, 1, "Event: CAM Unplugged: Adapter(%d) Slot(0)", mantis->num); 73 udelay(50); 74 mmwrite(0x00da0000, MANTIS_CARD_RESET); 75 gpif_irqcfg = mmread(MANTIS_GPIF_IRQCFG); 76 gpif_irqcfg |= MANTIS_MASK_PLUGIN; 77 gpif_irqcfg &= ~MANTIS_MASK_PLUGOUT; 78 mmwrite(gpif_irqcfg, MANTIS_GPIF_IRQCFG); 79 udelay(500); 80 ca->slot_state = MODULE_XTRACTED; 81 } 82 udelay(100); 83} 84 85int mantis_pcmcia_init(struct mantis_ca *ca) 86{ 87 struct mantis_pci *mantis = ca->ca_priv; 88 89 u32 gpif_stat, card_stat; 90 91 mmwrite(mmread(MANTIS_INT_MASK) | MANTIS_INT_IRQ0, MANTIS_INT_MASK); 92 gpif_stat = mmread(MANTIS_GPIF_STATUS); 93 card_stat = mmread(MANTIS_GPIF_IRQCFG); 94 95 if (gpif_stat & MANTIS_GPIF_DETSTAT) { 96 dprintk(MANTIS_DEBUG, 1, "CAM found on Adapter(%d) Slot(0)", mantis->num); 97 mmwrite(card_stat | MANTIS_MASK_PLUGOUT, MANTIS_GPIF_IRQCFG); 98 ca->slot_state = MODULE_INSERTED; 99 dvb_ca_en50221_camchange_irq(&ca->en50221, 100 0, 101 DVB_CA_EN50221_CAMCHANGE_INSERTED); 102 } else { 103 dprintk(MANTIS_DEBUG, 1, "Empty Slot on Adapter(%d) Slot(0)", mantis->num); 104 mmwrite(card_stat | MANTIS_MASK_PLUGIN, MANTIS_GPIF_IRQCFG); 105 ca->slot_state = MODULE_XTRACTED; 106 dvb_ca_en50221_camchange_irq(&ca->en50221, 107 0, 108 DVB_CA_EN50221_CAMCHANGE_REMOVED); 109 } 110 111 return 0; 112} 113 114void mantis_pcmcia_exit(struct mantis_ca *ca) 115{ 116 struct mantis_pci *mantis = ca->ca_priv; 117 118 mmwrite(mmread(MANTIS_GPIF_STATUS) & (~MANTIS_CARD_PLUGOUT | ~MANTIS_CARD_PLUGIN), MANTIS_GPIF_STATUS); 119 mmwrite(mmread(MANTIS_INT_MASK) & ~MANTIS_INT_IRQ0, MANTIS_INT_MASK); 120} 121