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 #include <asm/io.h> 27 28 #include <media/dmxdev.h> 29 #include <media/dvbdev.h> 30 #include <media/dvb_demux.h> 31 #include <media/dvb_frontend.h> 32 #include <media/dvb_net.h> 33 34 #include "mantis_common.h" 35 #include "mantis_link.h" 36 #include "mantis_hif.h" 37 #include "mantis_reg.h" 38 39 static void mantis_hifevm_work(struct work_struct *work) 40 { 41 struct mantis_ca *ca = container_of(work, struct mantis_ca, hif_evm_work); 42 struct mantis_pci *mantis = ca->ca_priv; 43 44 u32 gpif_stat; 45 46 gpif_stat = mmread(MANTIS_GPIF_STATUS); 47 48 if (gpif_stat & MANTIS_GPIF_DETSTAT) { 49 if (gpif_stat & MANTIS_CARD_PLUGIN) { 50 dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): CAM Plugin", mantis->num); 51 mmwrite(0xdada0000, MANTIS_CARD_RESET); 52 mantis_event_cam_plugin(ca); 53 dvb_ca_en50221_camchange_irq(&ca->en50221, 54 0, 55 DVB_CA_EN50221_CAMCHANGE_INSERTED); 56 } 57 } else { 58 if (gpif_stat & MANTIS_CARD_PLUGOUT) { 59 dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): CAM Unplug", mantis->num); 60 mmwrite(0xdada0000, MANTIS_CARD_RESET); 61 mantis_event_cam_unplug(ca); 62 dvb_ca_en50221_camchange_irq(&ca->en50221, 63 0, 64 DVB_CA_EN50221_CAMCHANGE_REMOVED); 65 } 66 } 67 68 if (mantis->gpif_status & MANTIS_GPIF_EXTIRQ) 69 dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Ext IRQ", mantis->num); 70 71 if (mantis->gpif_status & MANTIS_SBUF_WSTO) 72 dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer Timeout", mantis->num); 73 74 if (mantis->gpif_status & MANTIS_GPIF_OTHERR) 75 dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Alignment Error", mantis->num); 76 77 if (gpif_stat & MANTIS_SBUF_OVFLW) 78 dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer Overflow", mantis->num); 79 80 if (gpif_stat & MANTIS_GPIF_BRRDY) 81 dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer Read Ready", mantis->num); 82 83 if (gpif_stat & MANTIS_GPIF_INTSTAT) 84 dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): GPIF IRQ", mantis->num); 85 86 if (gpif_stat & MANTIS_SBUF_EMPTY) 87 dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer Empty", mantis->num); 88 89 if (gpif_stat & MANTIS_SBUF_OPDONE) { 90 dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer operation complete", mantis->num); 91 ca->sbuf_status = MANTIS_SBUF_DATA_AVAIL; 92 ca->hif_event = MANTIS_SBUF_OPDONE; 93 wake_up(&ca->hif_opdone_wq); 94 } 95 } 96 97 int mantis_evmgr_init(struct mantis_ca *ca) 98 { 99 struct mantis_pci *mantis = ca->ca_priv; 100 101 dprintk(MANTIS_DEBUG, 1, "Initializing Mantis Host I/F Event manager"); 102 INIT_WORK(&ca->hif_evm_work, mantis_hifevm_work); 103 mantis_pcmcia_init(ca); 104 schedule_work(&ca->hif_evm_work); 105 mantis_hif_init(ca); 106 return 0; 107 } 108 109 void mantis_evmgr_exit(struct mantis_ca *ca) 110 { 111 struct mantis_pci *mantis = ca->ca_priv; 112 113 dprintk(MANTIS_DEBUG, 1, "Mantis Host I/F Event manager exiting"); 114 flush_work(&ca->hif_evm_work); 115 mantis_hif_exit(ca); 116 mantis_pcmcia_exit(ca); 117 } 118