text: /*
  	Mantis PCI bridge driver
  
  	Copyright (C) Manu Abraham (abraham.manu@gmail.com)
  
  	This program is free software; you can redistribute it and/or modify
  	it under the terms of the GNU General Public License as published by
  	the Free Software Foundation; either version 2 of the License, or
  	(at your option) any later version.
  
  	This program is distributed in the hope that it will be useful,
  	but WITHOUT ANY WARRANTY; without even the implied warranty of
  	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  	GNU General Public License for more details.
  
  	You should have received a copy of the GNU General Public License
  	along with this program; if not, write to the Free Software
  	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
  
  #include <linux/module.h>
  #include <linux/moduleparam.h>
  #include <linux/kernel.h>
  #include <linux/pci.h>
  #include <linux/slab.h>
  #include <asm/irq.h>
  #include <linux/interrupt.h>
  #include <media/rc-map.h>
  
  #include "dmxdev.h"
  #include "dvbdev.h"
  #include "dvb_demux.h"
  #include "dvb_frontend.h"
  #include "dvb_net.h"
  
  #include "mantis_common.h"
  
  #include "mantis_vp1033.h"
  #include "mantis_vp1034.h"
  #include "mantis_vp1041.h"
  #include "mantis_vp2033.h"
  #include "mantis_vp2040.h"
  #include "mantis_vp3030.h"
  
  #include "mantis_dma.h"
  #include "mantis_ca.h"
  #include "mantis_dvb.h"
  #include "mantis_uart.h"
  #include "mantis_ioc.h"
  #include "mantis_pci.h"
  #include "mantis_i2c.h"
  #include "mantis_reg.h"
  #include "mantis_input.h"
  
  static unsigned int verbose;
  module_param(verbose, int, 0644);
  MODULE_PARM_DESC(verbose, "verbose startup messages, default is 0 (no)");
  
  static int devs;
  
  #define DRIVER_NAME	"Mantis"
  
  static char *label[10] = {
  	"DMA",
  	"IRQ-0",
  	"IRQ-1",
  	"OCERR",
  	"PABRT",
  	"RIPRR",
  	"PPERR",
  	"FTRGT",
  	"RISCI",
  	"RACK"
  };
  
  static irqreturn_t mantis_irq_handler(int irq, void *dev_id)
  {
  	u32 stat = 0, mask = 0;
  	u32 rst_stat = 0, rst_mask = 0;
  
  	struct mantis_pci *mantis;
  	struct mantis_ca *ca;
  
  	mantis = (struct mantis_pci *) dev_id;
  	if (unlikely(mantis == NULL)) {
  		dprintk(MANTIS_ERROR, 1, "Mantis == NULL");
  		return IRQ_NONE;
  	}
  	ca = mantis->mantis_ca;
  
  	stat = mmread(MANTIS_INT_STAT);
  	mask = mmread(MANTIS_INT_MASK);
  	if (!(stat & mask))
  		return IRQ_NONE;
  
  	rst_mask  = MANTIS_GPIF_WRACK  |
  		    MANTIS_GPIF_OTHERR |
  		    MANTIS_SBUF_WSTO   |
  		    MANTIS_GPIF_EXTIRQ;
  
  	rst_stat  = mmread(MANTIS_GPIF_STATUS);
  	rst_stat &= rst_mask;
  	mmwrite(rst_stat, MANTIS_GPIF_STATUS);
  
  	mantis->mantis_int_stat = stat;
  	mantis->mantis_int_mask = mask;
  	dprintk(MANTIS_DEBUG, 0, "\n-- Stat=<%02x> Mask=<%02x> --", stat, mask);
  	if (stat & MANTIS_INT_RISCEN) {
  		dprintk(MANTIS_DEBUG, 0, "<%s>", label[0]);
  	}
  	if (stat & MANTIS_INT_IRQ0) {
  		dprintk(MANTIS_DEBUG, 0, "<%s>", label[1]);
  		mantis->gpif_status = rst_stat;
  		wake_up(&ca->hif_write_wq);
  		schedule_work(&ca->hif_evm_work);
  	}
  	if (stat & MANTIS_INT_IRQ1) {
  		dprintk(MANTIS_DEBUG, 0, "<%s>", label[2]);
  		spin_lock(&mantis->intmask_lock);
  		mmwrite(mmread(MANTIS_INT_MASK) & ~MANTIS_INT_IRQ1,
  			MANTIS_INT_MASK);
  		spin_unlock(&mantis->intmask_lock);
  		schedule_work(&mantis->uart_work);
  	}
  	if (stat & MANTIS_INT_OCERR) {
  		dprintk(MANTIS_DEBUG, 0, "<%s>", label[3]);
  	}
  	if (stat & MANTIS_INT_PABORT) {
  		dprintk(MANTIS_DEBUG, 0, "<%s>", label[4]);
  	}
  	if (stat & MANTIS_INT_RIPERR) {
  		dprintk(MANTIS_DEBUG, 0, "<%s>", label[5]);
  	}
  	if (stat & MANTIS_INT_PPERR) {
  		dprintk(MANTIS_DEBUG, 0, "<%s>", label[6]);
  	}
  	if (stat & MANTIS_INT_FTRGT) {
  		dprintk(MANTIS_DEBUG, 0, "<%s>", label[7]);
  	}
  	if (stat & MANTIS_INT_RISCI) {
  		dprintk(MANTIS_DEBUG, 0, "<%s>", label[8]);
  		mantis->busy_block = (stat & MANTIS_INT_RISCSTAT) >> 28;
  		tasklet_schedule(&mantis->tasklet);
  	}
  	if (stat & MANTIS_INT_I2CDONE) {
  		dprintk(MANTIS_DEBUG, 0, "<%s>", label[9]);
  		wake_up(&mantis->i2c_wq);
  	}
  	mmwrite(stat, MANTIS_INT_STAT);
  	stat &= ~(MANTIS_INT_RISCEN   | MANTIS_INT_I2CDONE |
  		  MANTIS_INT_I2CRACK  | MANTIS_INT_PCMCIA7 |
  		  MANTIS_INT_PCMCIA6  | MANTIS_INT_PCMCIA5 |
  		  MANTIS_INT_PCMCIA4  | MANTIS_INT_PCMCIA3 |
  		  MANTIS_INT_PCMCIA2  | MANTIS_INT_PCMCIA1 |
  		  MANTIS_INT_PCMCIA0  | MANTIS_INT_IRQ1	   |
  		  MANTIS_INT_IRQ0     | MANTIS_INT_OCERR   |
  		  MANTIS_INT_PABORT   | MANTIS_INT_RIPERR  |
  		  MANTIS_INT_PPERR    | MANTIS_INT_FTRGT   |
  		  MANTIS_INT_RISCI);
  
  	if (stat)
  		dprintk(MANTIS_DEBUG, 0, "<Unknown> Stat=<%02x> Mask=<%02x>", stat, mask);
  
  	dprintk(MANTIS_DEBUG, 0, "\n");
  	return IRQ_HANDLED;
  }
  
  static int mantis_pci_probe(struct pci_dev *pdev,
  			    const struct pci_device_id *pci_id)
  {
  	struct mantis_pci_drvdata *drvdata;
  	struct mantis_pci *mantis;
  	struct mantis_hwconfig *config;
  	int err = 0;
  
  	mantis = kzalloc(sizeof(struct mantis_pci), GFP_KERNEL);
  	if (mantis == NULL) {
  		printk(KERN_ERR "%s ERROR: Out of memory\n", __func__);
  		return -ENOMEM;
  	}
  
  	drvdata			= (void *)pci_id->driver_data;
  	mantis->num		= devs;
  	mantis->verbose		= verbose;
  	mantis->pdev		= pdev;
  	config			= drvdata->hwconfig;
  	config->irq_handler	= &mantis_irq_handler;
  	mantis->hwconfig	= config;
  	mantis->rc_map_name	= drvdata->rc_map_name;
  
  	spin_lock_init(&mantis->intmask_lock);
  
  	err = mantis_pci_init(mantis);
  	if (err) {
  		dprintk(MANTIS_ERROR, 1, "ERROR: Mantis PCI initialization failed <%d>", err);
  		goto err_free_mantis;
  	}
  
  	err = mantis_stream_control(mantis, STREAM_TO_HIF);
  	if (err < 0) {
  		dprintk(MANTIS_ERROR, 1, "ERROR: Mantis stream control failed <%d>", err);
  		goto err_pci_exit;
  	}
  
  	err = mantis_i2c_init(mantis);
  	if (err < 0) {
  		dprintk(MANTIS_ERROR, 1, "ERROR: Mantis I2C initialization failed <%d>", err);
  		goto err_pci_exit;
  	}
  
  	err = mantis_get_mac(mantis);
  	if (err < 0) {
  		dprintk(MANTIS_ERROR, 1, "ERROR: Mantis MAC address read failed <%d>", err);
  		goto err_i2c_exit;
  	}
  
  	err = mantis_dma_init(mantis);
  	if (err < 0) {
  		dprintk(MANTIS_ERROR, 1, "ERROR: Mantis DMA initialization failed <%d>", err);
  		goto err_i2c_exit;
  	}
  
  	err = mantis_dvb_init(mantis);
  	if (err < 0) {
  		dprintk(MANTIS_ERROR, 1, "ERROR: Mantis DVB initialization failed <%d>", err);
  		goto err_dma_exit;
  	}
  
  	err = mantis_input_init(mantis);
  	if (err < 0) {
  		dprintk(MANTIS_ERROR, 1,
  			"ERROR: Mantis DVB initialization failed <%d>", err);
  		goto err_dvb_exit;
  	}
  
  	err = mantis_uart_init(mantis);
  	if (err < 0) {
  		dprintk(MANTIS_ERROR, 1, "ERROR: Mantis UART initialization failed <%d>", err);
  		goto err_input_exit;
  	}
  
  	devs++;
  
  	return 0;
  
  err_input_exit:
  	mantis_input_exit(mantis);
  
  err_dvb_exit:
  	mantis_dvb_exit(mantis);
  
  err_dma_exit:
  	mantis_dma_exit(mantis);
  
  err_i2c_exit:
  	mantis_i2c_exit(mantis);
  
  err_pci_exit:
  	mantis_pci_exit(mantis);
  
  err_free_mantis:
  	kfree(mantis);
  
  	return err;
  }
  
  static void mantis_pci_remove(struct pci_dev *pdev)
  {
  	struct mantis_pci *mantis = pci_get_drvdata(pdev);
  
  	if (mantis) {
  
  		mantis_uart_exit(mantis);
  		mantis_input_exit(mantis);
  		mantis_dvb_exit(mantis);
  		mantis_dma_exit(mantis);
  		mantis_i2c_exit(mantis);
  		mantis_pci_exit(mantis);
  		kfree(mantis);
  	}
  	return;
  }
  
  static struct pci_device_id mantis_pci_table[] = {
  	MAKE_ENTRY(TECHNISAT, CABLESTAR_HD2, &vp2040_config,
  		   RC_MAP_TECHNISAT_TS35),
  	MAKE_ENTRY(TECHNISAT, SKYSTAR_HD2_10, &vp1041_config,
  		   NULL),
  	MAKE_ENTRY(TECHNISAT, SKYSTAR_HD2_20, &vp1041_config,
  		   NULL),
  	MAKE_ENTRY(TERRATEC, CINERGY_C, &vp2040_config,
  		   RC_MAP_TERRATEC_CINERGY_C_PCI),
  	MAKE_ENTRY(TERRATEC, CINERGY_S2_PCI_HD, &vp1041_config,
  		   RC_MAP_TERRATEC_CINERGY_S2_HD),
  	MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_1033_DVB_S, &vp1033_config,
  		   NULL),
  	MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_1034_DVB_S, &vp1034_config,
  		   NULL),
  	MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_1041_DVB_S2, &vp1041_config,
  		   RC_MAP_TWINHAN_DTV_CAB_CI),
  	MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_2033_DVB_C, &vp2033_config,
  		   RC_MAP_TWINHAN_DTV_CAB_CI),
  	MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_2040_DVB_C, &vp2040_config,
  		   NULL),
  	MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_3030_DVB_T, &vp3030_config,
  		   NULL),
  	{ }
  };
  
  MODULE_DEVICE_TABLE(pci, mantis_pci_table);
  
  static struct pci_driver mantis_pci_driver = {
  	.name		= DRIVER_NAME,
  	.id_table	= mantis_pci_table,
  	.probe		= mantis_pci_probe,
  	.remove		= mantis_pci_remove,
  };
  
  module_pci_driver(mantis_pci_driver);
  
  MODULE_DESCRIPTION("MANTIS driver");
  MODULE_AUTHOR("Manu Abraham");
  MODULE_LICENSE("GPL");
  