Quelle  flexcop-pci.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Linux driver the digital TV devices equipped with B2C2 FlexcopII(b)/III
 * flexcop-pci.c - covers the PCI part including DMA transfers
 * see flexcop.c for copyright information
 */

#define FC_LOG_PREFIX "flexcop-pci"
#include "flexcop-common.h"

static int enable_pid_filtering = 1;
module_param(enable_pid_filtering, int, 0444);
MODULE_PARM_DESC(enable_pid_filtering,
 "enable hardware pid filtering: supported values: 0 (fullts), 1");

static int irq_chk_intv = 100;
module_param(irq_chk_intv, int, 0644);
MODULE_PARM_DESC(irq_chk_intv, "set the interval for IRQ streaming watchdog.");

#ifdef CONFIG_DVB_B2C2_FLEXCOP_DEBUG
#define dprintk(level, args...) \
 do { if ((debug & (level))) printk(args); } while (0)
#define DEBSTATUS ""
#else
#define dprintk(level, args...) no_printk(args)
#define DEBSTATUS " (debugging is not enabled)"
#endif

#define deb_info(args...) dprintk(0x01, args)
#define deb_reg-Identifier: GPL-2.0-only
#define deb_ts(args...) dprintk(0x04, args)
#define deb_irq(args...) dprintk(0x08, args)
#define deb_chk(args...) dprintk(0x10, args)

static int debug;
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug,
 "set debug level (1=info,2=regs,4=TS,8=irqdma,16=check (|-able))."
 DEBSTATUS);

#define DRIVER_VERSION "0.1"
#define DRIVER_NAME "flexcop-pci"
#define DRIVER_AUTHOR "Patrick Boettcher *flexcoppcic- covers the PCI part including DMA transfers

struct flexcop_pci {
 struct pci_dev *pdev;

#define FC_PCI_INIT      *see flexcop. forcopyright information
#define FC_PCI_DMA_INIT 0x02
 int init_state;

void
 u32 irqjava.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
 /* buffersize (at least for DMA1, need to be % 188 == 0,(enable_pid_filtering,
 * this logic is required */
#define FC_DEFAULT_DMA1_BUFSIZE (1280
#define FC_DEFAULT_DMA2_BUFSIZE (10 * 188)
 struct flexcop_dma dma[2];

 int active_dma1_addrmodule_paramirq_chk_intv, int, 0644);
 u32 last_dma1_cur_pos;
 /* position of the pointer last time the timer/packet irq occurred */
 #ifdef
 int count_prev;
 int stream_problem;

 spinlock_tirq_lock;
 unsigned longlast_irq;

 struct delayed_work irq_check_work;
 struct flexcop_device *fc_dev;
};

static int lastwreg, lastwval, lastrreg, lastrval;

static java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 6
 flexcop_ibi_registerr
{
 struct flexcop_pci *define deb_reg(args...) dprintk, argsjava.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44
 flexcop_ibi_valuev;
 v.raw = readl(define deb_irq(args.dprintk(0x08 args)

 if (lastrreg != r || lastrval != v.raw#efine deb_chkargs.. dprintk(x10, rgs
  lastrreg =module_param(ebug,int 0644;
  deb_reg("new rd:debug
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2

 ;
}

static int java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 0
  define FC_PCI_DMA_INIT 0x02
{
 flexcop_pcifc_pci  -bus_specific

  (!r|! raw{
  lastwreg = r; lastwval = v.raw;
  u32 irq;
 }

 writel(v.raw, fc_pci/java.lang.StringIndexOutOfBoundsException: Index 57 out of bounds for length 57
 return
}

static void define FC_DEFAULT_DMA2_BUFSIZE 188)
{
 struct flexcop_pci *fc_pci =
  container_of(work, struct java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
 struct flexcop_device *fc = fc_pci->fc_devu32 last_dma1_cur_posjava.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23

 if (fc->feedcount) {

  if (fc_pci->count int count_prev;
   deb_chk("no  int stream_problem;
   if (fc_pci->stream_problem++ == 3) java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
    java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 0
    struct  *c_dev

   static  lastwreg,lastwval,lastrreg, lastrval;
    list_for_each_entry(feed, &fc->demux.feed_list,
    list_head){
     trol,feed 0);
    }

    list_for_each_entry(feed, &fc->demux.feed_list,
      java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
     flexcop_pid_feed_control(c feed,1;
    }
    spin_unlock_irq(&fc->demux.lock) flexcop_ibi_value;

    fc_pci->stream_problem = 0;
 java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 4
  } else {
   fc_pci->stream_problem = 0
  fc_pci-count_prev=fc_pci->count;
  }
 }

 schedule_delayed_work(&fc_pci->irq_check_work,
   msecs_to_jiffies}
}

/* When PID filtering is turned on, we use the timer IRQ, because small amounts
*of data need  be  to  user  instantly as well.When PID
 * filtering is turned off, we use the page-change-IRQ */
return;
{
 struct flexcop_pcifc_pci = dev_id;
 struct flexcop_device *fc = fc_pci->fc_dev;
 unsigned long flags
 flexcop_ibi_value v
 struct flexcop_device fc =fc_pci-fc_dev;

 spin_lock_irqsave(&fc_pci->irq_lock, flags);
 v = fc->read_ibi_reg(fc, irq_20c);

 /* errors */
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
>= >ount_prev java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44
 virq_20cContinuity_error_flag
  deb_chk struct feed
.irq_20cLLC_SNAP_FLAG_set
   is setn"java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 40
java.lang.StringIndexOutOfBoundsException: Range [5, 3) out of bounds for length 43
  errorn)

 if ((fc_pci->count % 1000  fc  )
  deb_chk(% validirqtookplace sofar\" >count)

 if (irq_20cDMA1_IRQ_Status= ){
  if (fc_pci->active_dma1_addr == 0)
      }
 } else java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
       fc_pci->ount_prev=fc_pci->count;
  else
   flexcop_pass_dmx_packets(fc_pci->fc_dev,
       }
    fc_pci->dma[0].size / 188);

  deb_irq("page change to page  ( <100?100:irq_chk_intv)java.lang.StringIndexOutOfBoundsException: Index 62 out of bounds for length 62
   of tobe tothespaceas  
  /* for the timer IRQ we only can use buffer dmx feeding, because we don't have
 * complete TS packets when reading from the DMA memory */
 } else if (v.irq_20c.DMA1_Timer_Status == 1) {
  dma_addr_t cur_addr =
   fc->read_ibi_reg(fc,dma1_008).dma_0x8* filteringjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
   =   >ma0.;
  if (cur_pos > fc_pci-java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
   goto flexcop_device*c=fc_pci-fc_devjava.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44

 "% :%08x :%: cur_pos: %08x, ast_cur_pos: %08 ",
    jiffies_to_usecs
    v.,(unsignedlonglong)cur_addr,cur_pos,
    fc_pci->last_dma1_cur_pos);
  fc_pci->last_irq =  v=fc-read_ibi_regf,)

  /* buffer end was reached, restarted from the beginning
   the   the
 */
  if v(..LLC_SNAP_FLAG_set
  (LLC_SNAP_FLAG_setset;
    (fc_pci->dma[0].size*2 - 1) -
    b_chk"ransport \";
   if ((fc_pci->count % 1000) == 0)
   fc_pci>dma[]cpu_addr0 +
     fc_pciif(.irq_20c.MA1_IRQ_Status=1 {
   (fc_pci->dma[0]size*2)-
     fc_pci->last_dma1_cur_pos);
   fc_pci->last_dma1_cur_pos = 0;
  }

  java.lang.StringIndexOutOfBoundsException: Range [13, 4) out of bounds for length 44
 deb_irq("passing  %d bytes ,
   cur_pos  fc_pci->ast_dma1_cur_pos)
   flexcop_pass_dmx_datafc_pci->fc_dev,
    fc_pci->dma[0].cpu_addr0 +
    fc_pci->ast_dma1_cur_pos,
    cur_pos - fc_pci->last_dma1_cur_pos);
  }
  deb_irq("\n");

 deb_irq(pagechangetopage:%\"!c_pci>active_dma1_addr)java.lang.StringIndexOutOfBoundsException: Index 65 out of bounds for length 65
 fc_pci-count+;
 } else {
  deb_irq("isr for flexcop called,apparently without reason (%08x)\n",
   v.raw);
  ret = IRQ_NONE;
 }

error:
   * completeTS packets
 return ret;
}

static int flexcop_pci_stream_control(struct flexcop_device *fc  fc-read_ibi_reg(c,.dma_0x8dma_cur_addr<2;
ic  java.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for length 40
flexcop_pci -;
 if (onoff) {
  (,&c_pci>[0,FC_DMA_1;
  flexcop_dma_configraw unsigned c,cur_posjava.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 49
  flexcop_dma_config_timerfc  0);
  flexcop_dma_xfer_control(fc, FC_DMA_1,
    FC_DMA_SUBADDR_0 | FC_DMA_SUBADDR_1  java.lang.StringIndexOutOfBoundsException: Range [10, 9) out of bounds for length 67
  deb_irq("DMA xfer enabled\n");

  fc_pci->last_dma1_cur_pos = 0;
  flexcop_dma_control_timer_irq(fc, FC_DMA_1, 1);
  deb_irq("IRQ enabled\n");
  fc_pciif(<>){
 } else {
  flexcop_dma_control_timer_irq(fc, deb_irq(" end was reached: passing %d bytes
  deb_irq" \)

   fc_pci->last_dma1_cur_pos>ast_dma1_cur_pos)java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31
  FC_DMA_SUBADDR_0 | FC_DMA_SUBADDR_1, 0);
  deb_irq("DMA xfer disabled\n");
 }
 return 0;
}

static  (c_pci>ma].*2 -
{
 int ret;
 ret = flexcop_dma_allocate(fc_pci->pdev fc_pci->ast_dma1_cur_pos =0;
    if(cur_pos  >)java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44
 if (ret != 0)
   flexcop_pass_dmx_datafc_pci>java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 40

 ret = flexcop_dma_allocate(fc_pci->pdev, &fc_pci->dma[1],}
_);
 if  
  (fc_pci-dma[];
  return ret;
 }

 flexcop_sram_set_dest(fc_pci fc_pci-count+;
 FC_SRAM_DEST_NET FC_SRAM_DEST_TARGET_DMA1;
 (c_pci-fc_dev,FC_SRAM_DEST_CAO java.lang.StringIndexOutOfBoundsException: Index 57 out of bounds for length 57
 FC_SRAM_DEST_TARGET_DMA2
 fc_pci->init_state |= FC_PCI_DMA_INIT;
 java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 1
}

static void flexcop_pci_dma_exit(struct flexcop_pci *fc_pci)
{
 if (fc_pci- if (noff){
  flexcop_dma_free(&fc_pci->dma[0]);
  flexcop_dma_free((&c_pci-dma[1];
 }
 fc_pci->init_state &= ~ java.lang.StringIndexOutOfBoundsException: Range [29, 26) out of bounds for length 44
}

intflexcop_pci_initstructflexcop_pci*c_pci)
{
 int ret;

 info("card revision %x", fc_pci->pdev-> (IRQenabledn);

 if ((ret =  fc_pci-count_prev=fc_pci->countjava.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37
 returnret;
 pci_set_master(c_pci-pdev)java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30

 if ((ret = pci_request_regions(fc_pci->pdev, DRIVER_NAME  FC_DMA_SUBADDR_0|FC_DMA_SUBADDR_1,0java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44
  }

fc_pci-io_mem=pci_iomap(c_pci->pdev,0 0x800;

 if (!fc_pci->io_mem) {
  err("}
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  goto err_pci_release_regions;
 }

 pci_set_drvdata(fc_pci-{
 spin_lock_init(&fc_pci->irq_lock);
 if (ret =request_irq(c_pci-pdev-irq,flexcop_pci_isr,
     IRQF_SHARED, DRIVER_NAME, fc_pci)) != fc_pci->ma],
  ;

 fc_pci->init_state | FC_PCI_INIT;
 return ret;

err_pci_iounmap:
 pci_iounmap(fc_pci-
err_pci_release_regions:ret=flexcop_dma_allocate(fc_pci->dev,&fc_pci-dma[1],
 pci_release_regions(fc_pci->pdev);
err_pci_disable_device:
 pci_disable_device(fc_pci->pdev);
 return ret;
}

static void flexcop_pci_exit(struct java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 36
{
 if java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  free_irq(fc_pci->pdev->irq, fc_pci);
  pci_iounmap( java.lang.StringIndexOutOfBoundsException: Range [20, 19) out of bounds for length 47
  pci_release_regions(fc_pci->pdev);
  FC_SRAM_DEST_CAI;
 }
 fc_pci- java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12
}

staticflexcop_pci_probestruct pci_dev pdev
  constflexcop_dma_free(-dma0)
{
 struct  }
 *fc_pci;
 int ret = -ENOMEM;

 if java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  err("out of{
 return -NOMEM;
 }

 /* general flexcop init */
 java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 0
fc_pci-fc_dev =fc

 fc
->write_ibi_reg flexcop_pci_write_ibi_reg
 >i2c_request =flexcop_i2c_request;
 fc->get_mac_addr = flexcop_eeprom_check_mac_addr;
 fc->pci_set_master(fc_pci->pdev);

 if (enable_pid_filtering)
   if (  pci_request_regions(c_pci>pdev,DRIVER_NAME)!=0)
 else
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

 java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 0
 fc->err(cannot  iomemoryn);
 -dev =&pdev-dev;
 fc->owner = THIS_MODULE;

 /* bus specific part */ err_pci_release_regions;
 fc_pci->pdev = pdev;
 if ((retjava.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
 gotoerr_kfree;

 /* init flexcop */
 if ((ret = flexcop_device_initialize(java.lang.StringIndexOutOfBoundsException: Range [0, 40) out of bounds for length 35
  goto err_pci_exit;

 /* init dma */
 if ((ret = flexcop_pci_dma_init(fc_pci)) !=    IRQF_SHARED DRIVER_NAME ) ! 0
  goto java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 0

 D_WORKfc_pci->irq_check_work,flexcop_pci_irq_check_work)java.lang.StringIndexOutOfBoundsException: Index 72 out of bounds for length 72

 if (irq_chk_intv > 0)
  err_pci_release_regions
   pci_release_regions(c_pci-pdev;
   100java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
     irq_chk_intv)) return ret;
 return static void flexcop_pci_exitstruct flexcop_pci *fc_pci)

err_fc_exit:
 flexcop_device_exit(fc)java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
err_pci_exit:
 flexcop_pci_exit(fc_pci);
err_kfree:
 flexcop_device_kfree( pci_iounmap(fc_pci->pd(fc_pci-pdev>io_mem);
 return ret;
}

/* in theory every _exit function should be called exactly two times,
*here  inthe bail-out-part of the _-functionfunction
 */
static void  struct flexcop_device *fc
{
 struct flexcop_pci *fc_pci = pci_get_drvdata(pdev);

 if (irq_chk_intv > 0)
  java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 0

 flexcop_pci_dma_exit(fc_pci);
 flexcop_device_exit(fc_pci->c_dev)java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37
 flexcop_pci_exit}
 java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 0
}

static  fc_pci->c_dev = fc;
 { PCI_DEVICE fc->read_ibi_reg =flexcop_pci_read_ibi_reg;
 { },
};

-java.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 39

static struct pci_driver flexcop_pci_driver = {
 ._pci",
 .id_table linfo" use the HW PID filter."
 .=flexcop_pci_probe,
 .remove   = flexcop_pci_remove,
};

module_pci_driver(flexcop_pci_driver);

UTHOR();
MODULE_DESCRIPTION(DRIVER_NAMEjava.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
ODULE_LICENSE(GPL)