| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 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 | } |