1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 Mantis PCI bridge driver 4 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" 24 #include "mantis_hif.h" 25 #include "mantis_reg.h" 26 27 static void mantis_hifevm_work(struct work_struct *work) 28 { 29 struct mantis_ca *ca = container_of(work, struct mantis_ca, hif_evm_work); 30 struct mantis_pci *mantis = ca->ca_priv; 31 32 u32 gpif_stat; 33 34 gpif_stat = mmread(MANTIS_GPIF_STATUS); 35 36 if (gpif_stat & MANTIS_GPIF_DETSTAT) { 37 if (gpif_stat & MANTIS_CARD_PLUGIN) { 38 dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): CAM Plugin", mantis->num); 39 mmwrite(0xdada0000, MANTIS_CARD_RESET); 40 mantis_event_cam_plugin(ca); 41 dvb_ca_en50221_camchange_irq(&ca->en50221, 42 0, 43 DVB_CA_EN50221_CAMCHANGE_INSERTED); 44 } 45 } else { 46 if (gpif_stat & MANTIS_CARD_PLUGOUT) { 47 dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): CAM Unplug", mantis->num); 48 mmwrite(0xdada0000, MANTIS_CARD_RESET); 49 mantis_event_cam_unplug(ca); 50 dvb_ca_en50221_camchange_irq(&ca->en50221, 51 0, 52 DVB_CA_EN50221_CAMCHANGE_REMOVED); 53 } 54 } 55 56 if (mantis->gpif_status & MANTIS_GPIF_EXTIRQ) 57 dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Ext IRQ", mantis->num); 58 59 if (mantis->gpif_status & MANTIS_SBUF_WSTO) 60 dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer Timeout", mantis->num); 61 62 if (mantis->gpif_status & MANTIS_GPIF_OTHERR) 63 dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Alignment Error", mantis->num); 64 65 if (gpif_stat & MANTIS_SBUF_OVFLW) 66 dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer Overflow", mantis->num); 67 68 if (gpif_stat & MANTIS_GPIF_BRRDY) 69 dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer Read Ready", mantis->num); 70 71 if (gpif_stat & MANTIS_GPIF_INTSTAT) 72 dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): GPIF IRQ", mantis->num); 73 74 if (gpif_stat & MANTIS_SBUF_EMPTY) 75 dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer Empty", mantis->num); 76 77 if (gpif_stat & MANTIS_SBUF_OPDONE) { 78 dprintk(MANTIS_DEBUG, 1, "Event Mgr: Adapter(%d) Slot(0): Smart Buffer operation complete", mantis->num); 79 ca->sbuf_status = MANTIS_SBUF_DATA_AVAIL; 80 ca->hif_event = MANTIS_SBUF_OPDONE; 81 wake_up(&ca->hif_opdone_wq); 82 } 83 } 84 85 int mantis_evmgr_init(struct mantis_ca *ca) 86 { 87 struct mantis_pci *mantis = ca->ca_priv; 88 89 dprintk(MANTIS_DEBUG, 1, "Initializing Mantis Host I/F Event manager"); 90 INIT_WORK(&ca->hif_evm_work, mantis_hifevm_work); 91 mantis_pcmcia_init(ca); 92 schedule_work(&ca->hif_evm_work); 93 mantis_hif_init(ca); 94 return 0; 95 } 96 97 void mantis_evmgr_exit(struct mantis_ca *ca) 98 { 99 struct mantis_pci *mantis = ca->ca_priv; 100 101 dprintk(MANTIS_DEBUG, 1, "Mantis Host I/F Event manager exiting"); 102 flush_work(&ca->hif_evm_work); 103 mantis_hif_exit(ca); 104 mantis_pcmcia_exit(ca); 105 } 106