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/*
Hopper 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 "dmxdev.h"
#include "dvbdev.h"
#include "dvb_demux.h"
#include "dvb_frontend.h"
#include "dvb_net.h"
#include "mantis_common.h"
#include "hopper_vp3028.h"
#include "mantis_dma.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"
static unsigned int verbose;
module_param(verbose, int, 0644);
MODULE_PARM_DESC(verbose, "verbose startup messages, default is 0 (no)");
#define DRIVER_NAME "Hopper"
static char *label[10] = {
"DMA",
"IRQ-0",
"IRQ-1",
"OCERR",
"PABRT",
"RIPRR",
"PPERR",
"FTRGT",
"RISCI",
"RACK"
};
static int devs;
static irqreturn_t hopper_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]);
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 hopper_pci_probe(struct pci_dev *pdev,
const struct pci_device_id *pci_id)
{
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__);
err = -ENOMEM;
goto fail0;
}
mantis->num = devs;
mantis->verbose = verbose;
mantis->pdev = pdev;
config = (struct mantis_hwconfig *) pci_id->driver_data;
config->irq_handler = &hopper_irq_handler;
mantis->hwconfig = config;
err = mantis_pci_init(mantis);
if (err) {
dprintk(MANTIS_ERROR, 1, "ERROR: Mantis PCI initialization failed <%d>", err);
goto fail1;
}
err = mantis_stream_control(mantis, STREAM_TO_HIF);
if (err < 0) {
dprintk(MANTIS_ERROR, 1, "ERROR: Mantis stream control failed <%d>", err);
goto fail1;
}
err = mantis_i2c_init(mantis);
if (err < 0) {
dprintk(MANTIS_ERROR, 1, "ERROR: Mantis I2C initialization failed <%d>", err);
goto fail2;
}
err = mantis_get_mac(mantis);
if (err < 0) {
dprintk(MANTIS_ERROR, 1, "ERROR: Mantis MAC address read failed <%d>", err);
goto fail2;
}
err = mantis_dma_init(mantis);
if (err < 0) {
dprintk(MANTIS_ERROR, 1, "ERROR: Mantis DMA initialization failed <%d>", err);
goto fail3;
}
err = mantis_dvb_init(mantis);
if (err < 0) {
dprintk(MANTIS_ERROR, 1, "ERROR: Mantis DVB initialization failed <%d>", err);
goto fail4;
}
devs++;
return err;
fail4:
dprintk(MANTIS_ERROR, 1, "ERROR: Mantis DMA exit! <%d>", err);
mantis_dma_exit(mantis);
fail3:
dprintk(MANTIS_ERROR, 1, "ERROR: Mantis I2C exit! <%d>", err);
mantis_i2c_exit(mantis);
fail2:
dprintk(MANTIS_ERROR, 1, "ERROR: Mantis PCI exit! <%d>", err);
mantis_pci_exit(mantis);
fail1:
dprintk(MANTIS_ERROR, 1, "ERROR: Mantis free! <%d>", err);
kfree(mantis);
fail0:
return err;
}
static void hopper_pci_remove(struct pci_dev *pdev)
{
struct mantis_pci *mantis = pci_get_drvdata(pdev);
if (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 hopper_pci_table[] = {
MAKE_ENTRY(TWINHAN_TECHNOLOGIES, MANTIS_VP_3028_DVB_T, &vp3028_config),
{ }
};
MODULE_DEVICE_TABLE(pci, hopper_pci_table);
static struct pci_driver hopper_pci_driver = {
.name = DRIVER_NAME,
.id_table = hopper_pci_table,
.probe = hopper_pci_probe,
.remove = hopper_pci_remove,
};
static int hopper_init(void)
{
return pci_register_driver(&hopper_pci_driver);
}
static void hopper_exit(void)
{
return pci_unregister_driver(&hopper_pci_driver);
}
module_init(hopper_init);
module_exit(hopper_exit);
MODULE_DESCRIPTION("HOPPER driver");
MODULE_AUTHOR("Manu Abraham");
MODULE_LICENSE("GPL");
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