cregit-Linux how code gets into the kernel

Release 4.7 drivers/media/pci/mantis/mantis_cards.c

/*
        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; }

Contributors

PersonTokensPropCommitsCommitProp
manu abrahammanu abraham51494.49%133.33%
jan klotzkejan klotzke295.33%133.33%
marko ristolamarko ristola10.18%133.33%
Total544100.00%3100.00%


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; }

Contributors

PersonTokensPropCommitsCommitProp
manu abrahammanu abraham32979.09%240.00%
jan klotzkejan klotzke6916.59%120.00%
silvan jegensilvan jegen174.09%120.00%
mauro carvalho chehabmauro carvalho chehab10.24%120.00%
Total416100.00%5100.00%


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; }

Contributors

PersonTokensPropCommitsCommitProp
manu abrahammanu abraham5892.06%266.67%
jan klotzkejan klotzke57.94%133.33%
Total63100.00%3100.00%

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");

Overall Contributors

PersonTokensPropCommitsCommitProp
manu abrahammanu abraham118486.68%433.33%
jan klotzkejan klotzke15611.42%18.33%
silvan jegensilvan jegen171.24%18.33%
tejun heotejun heo30.22%18.33%
libo chenlibo chen20.15%18.33%
marko ristolamarko ristola10.07%18.33%
mauro carvalho chehabmauro carvalho chehab10.07%18.33%
igor m. liplianinigor m. liplianin10.07%18.33%
bjorn morkbjorn mork10.07%18.33%
Total1366100.00%12100.00%
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