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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"24#include "mantis_hif.h"25#include "mantis_reg.h"26 27static 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 85int 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 97void 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