X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Fmedia%2Fdvb%2Fb2c2%2Fflexcop-pci.c;h=9bc40bdcc282e2bd1d25a79e6275aaab0e3ec780;hb=43bc926fffd92024b46cafaf7350d669ba9ca884;hp=ed717c0073d5d63db1b3e1cf39011d51b9236db4;hpb=cee37fe97739d85991964371c1f3a745c00dd236;p=linux-2.6.git diff --git a/drivers/media/dvb/b2c2/flexcop-pci.c b/drivers/media/dvb/b2c2/flexcop-pci.c index ed717c007..9bc40bdcc 100644 --- a/drivers/media/dvb/b2c2/flexcop-pci.c +++ b/drivers/media/dvb/b2c2/flexcop-pci.c @@ -13,6 +13,10 @@ 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; +module_param(irq_chk_intv, int, 0644); +MODULE_PARM_DESC(irq_chk_intv, "set the interval for IRQ watchdog (currently just debugging)."); + #ifdef CONFIG_DVB_B2C2_FLEXCOP_DEBUG #define dprintk(level,args...) \ do { if ((debug & level)) printk(args); } while (0) @@ -26,6 +30,7 @@ MODULE_PARM_DESC(enable_pid_filtering, "enable hardware pid filtering: supported #define deb_reg(args...) dprintk(0x02,args) #define deb_ts(args...) dprintk(0x04,args) #define deb_irq(args...) dprintk(0x08,args) +#define deb_chk(args...) dprintk(0x10,args) static int debug = 0; module_param(debug, int, 0644); @@ -56,6 +61,10 @@ struct flexcop_pci { spinlock_t irq_lock; + unsigned long last_irq; + + struct work_struct irq_check_work; + struct flexcop_device *fc_dev; }; @@ -88,18 +97,55 @@ static int flexcop_pci_write_ibi_reg(struct flexcop_device *fc, flexcop_ibi_regi return 0; } +static void flexcop_pci_irq_check_work(void *data) +{ + struct flexcop_pci *fc_pci = data; + struct flexcop_device *fc = fc_pci->fc_dev; + + flexcop_ibi_value v = fc->read_ibi_reg(fc,sram_dest_reg_714); + + flexcop_dump_reg(fc_pci->fc_dev,dma1_000,4); + + if (v.sram_dest_reg_714.net_ovflow_error) + deb_chk("sram net_ovflow_error\n"); + if (v.sram_dest_reg_714.media_ovflow_error) + deb_chk("sram media_ovflow_error\n"); + if (v.sram_dest_reg_714.cai_ovflow_error) + deb_chk("sram cai_ovflow_error\n"); + if (v.sram_dest_reg_714.cai_ovflow_error) + deb_chk("sram cai_ovflow_error\n"); + + schedule_delayed_work(&fc_pci->irq_check_work, + msecs_to_jiffies(irq_chk_intv < 100 ? 100 : irq_chk_intv)); +} + /* When PID filtering is turned on, we use the timer IRQ, because small amounts * of data need to be passed to the user space instantly as well. When PID * filtering is turned off, we use the page-change-IRQ */ -static irqreturn_t flexcop_pci_irq(int irq, void *dev_id, struct pt_regs *regs) +static irqreturn_t flexcop_pci_isr(int irq, void *dev_id, struct pt_regs *regs) { struct flexcop_pci *fc_pci = dev_id; struct flexcop_device *fc = fc_pci->fc_dev; - flexcop_ibi_value v = fc->read_ibi_reg(fc,irq_20c); + flexcop_ibi_value v; irqreturn_t ret = IRQ_HANDLED; spin_lock_irq(&fc_pci->irq_lock); + v = fc->read_ibi_reg(fc,irq_20c); + + /* errors */ + if (v.irq_20c.Data_receiver_error) + deb_chk("data receiver error\n"); + if (v.irq_20c.Continuity_error_flag) + deb_chk("Contunuity error flag is set\n"); + if (v.irq_20c.LLC_SNAP_FLAG_set) + deb_chk("LLC_SNAP_FLAG_set is set\n"); + if (v.irq_20c.Transport_Error) + deb_chk("Transport error\n"); + + if ((fc_pci->count % 1000) == 0) + deb_chk("%d valid irq took place so far\n",fc_pci->count); + if (v.irq_20c.DMA1_IRQ_Status == 1) { if (fc_pci->active_dma1_addr == 0) flexcop_pass_dmx_packets(fc_pci->fc_dev,fc_pci->dma[0].cpu_addr0,fc_pci->dma[0].size / 188); @@ -115,8 +161,11 @@ static irqreturn_t flexcop_pci_irq(int irq, void *dev_id, struct pt_regs *regs) fc->read_ibi_reg(fc,dma1_008).dma_0x8.dma_cur_addr << 2; u32 cur_pos = cur_addr - fc_pci->dma[0].dma_addr0; - deb_irq("irq: %08x cur_addr: %08x: cur_pos: %08x, last_cur_pos: %08x ", - v.raw,cur_addr,cur_pos,fc_pci->last_dma1_cur_pos); + deb_irq("%u irq: %08x cur_addr: %llx: cur_pos: %08x, last_cur_pos: %08x ", + jiffies_to_usecs(jiffies - fc_pci->last_irq), + v.raw, (unsigned long long)cur_addr, cur_pos, + fc_pci->last_dma1_cur_pos); + fc_pci->last_irq = jiffies; /* buffer end was reached, restarted from the beginning * pass the data from last_cur_pos to the buffer end to the demux @@ -127,7 +176,6 @@ static irqreturn_t flexcop_pci_irq(int irq, void *dev_id, struct pt_regs *regs) fc_pci->dma[0].cpu_addr0 + fc_pci->last_dma1_cur_pos, (fc_pci->dma[0].size*2) - fc_pci->last_dma1_cur_pos); fc_pci->last_dma1_cur_pos = 0; - fc_pci->count = 0; } if (cur_pos > fc_pci->last_dma1_cur_pos) { @@ -139,16 +187,14 @@ static irqreturn_t flexcop_pci_irq(int irq, void *dev_id, struct pt_regs *regs) deb_irq("\n"); fc_pci->last_dma1_cur_pos = cur_pos; - } else + fc_pci->count++; + } else { + deb_irq("isr for flexcop called, apparently without reason (%08x)\n",v.raw); ret = IRQ_NONE; + } spin_unlock_irq(&fc_pci->irq_lock); -/* packet count would be ideal for hw filtering, but it isn't working. Either - * the data book is wrong, or I'm unable to read it correctly */ - -/* if (v.irq_20c.DMA1_Size_IRQ_Status == 1) { packet counter */ - return ret; } @@ -156,30 +202,35 @@ static int flexcop_pci_stream_control(struct flexcop_device *fc, int onoff) { struct flexcop_pci *fc_pci = fc->bus_specific; if (onoff) { - flexcop_dma_config(fc,&fc_pci->dma[0],FC_DMA_1,FC_DMA_SUBADDR_0 | FC_DMA_SUBADDR_1); - flexcop_dma_config(fc,&fc_pci->dma[1],FC_DMA_2,FC_DMA_SUBADDR_0 | FC_DMA_SUBADDR_1); - flexcop_dma_config_timer(fc,FC_DMA_1,1); + flexcop_dma_config(fc,&fc_pci->dma[0],FC_DMA_1); + flexcop_dma_config(fc,&fc_pci->dma[1],FC_DMA_2); - if (fc_pci->fc_dev->pid_filtering) { - fc_pci->last_dma1_cur_pos = 0; - flexcop_dma_control_timer_irq(fc,FC_DMA_1,1); - } else { - fc_pci->active_dma1_addr = 0; - flexcop_dma_control_size_irq(fc,FC_DMA_1,1); - } + flexcop_dma_config_timer(fc,FC_DMA_1,0); -/* flexcop_dma_config_packet_count(fc,FC_DMA_1,0xc0); - flexcop_dma_control_packet_irq(fc,FC_DMA_1,1); */ + flexcop_dma_xfer_control(fc,FC_DMA_1,FC_DMA_SUBADDR_0 | FC_DMA_SUBADDR_1,1); + deb_irq("DMA xfer enabled\n"); - deb_irq("irqs 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_pci->active_dma1_addr = 0; +// flexcop_dma_control_size_irq(fc,FC_DMA_1,1); + + if (irq_chk_intv > 0) + schedule_delayed_work(&fc_pci->irq_check_work, + msecs_to_jiffies(irq_chk_intv < 100 ? 100 : irq_chk_intv)); } else { - if (fc_pci->fc_dev->pid_filtering) - flexcop_dma_control_timer_irq(fc,FC_DMA_1,0); - else - flexcop_dma_control_size_irq(fc,FC_DMA_1,0); + if (irq_chk_intv > 0) + cancel_delayed_work(&fc_pci->irq_check_work); + + flexcop_dma_control_timer_irq(fc,FC_DMA_1,0); + deb_irq("IRQ disabled\n"); -// flexcop_dma_control_packet_irq(fc,FC_DMA_1,0); - deb_irq("irqs disabled\n"); +// flexcop_dma_control_size_irq(fc,FC_DMA_1,0); + + flexcop_dma_xfer_control(fc,FC_DMA_1,FC_DMA_SUBADDR_0 | FC_DMA_SUBADDR_1,0); + deb_irq("DMA xfer disabled\n"); } return 0; @@ -198,6 +249,7 @@ static int flexcop_pci_dma_init(struct flexcop_pci *fc_pci) flexcop_sram_set_dest(fc_pci->fc_dev,FC_SRAM_DEST_CAO | FC_SRAM_DEST_CAI, FC_SRAM_DEST_TARGET_DMA2); fc_pci->init_state |= FC_PCI_DMA_INIT; + goto success; dma1_free: flexcop_dma_free(&fc_pci->dma[0]); @@ -244,7 +296,7 @@ static int flexcop_pci_init(struct flexcop_pci *fc_pci) pci_set_drvdata(fc_pci->pdev, fc_pci); - if ((ret = request_irq(fc_pci->pdev->irq, flexcop_pci_irq, + if ((ret = request_irq(fc_pci->pdev->irq, flexcop_pci_isr, SA_SHIRQ, DRIVER_NAME, fc_pci)) != 0) goto err_pci_iounmap; @@ -324,6 +376,8 @@ static int flexcop_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e if ((ret = flexcop_pci_dma_init(fc_pci)) != 0) goto err_fc_exit; + INIT_WORK(&fc_pci->irq_check_work, flexcop_pci_irq_check_work, fc_pci); + goto success; err_fc_exit: flexcop_device_exit(fc); @@ -350,17 +404,17 @@ static void flexcop_pci_remove(struct pci_dev *pdev) static struct pci_device_id flexcop_pci_tbl[] = { { PCI_DEVICE(0x13d0, 0x2103) }, -/* { PCI_DEVICE(0x13d0, 0x2200) }, PCI FlexCopIII ? */ +/* { PCI_DEVICE(0x13d0, 0x2200) }, ? */ { }, }; MODULE_DEVICE_TABLE(pci, flexcop_pci_tbl); static struct pci_driver flexcop_pci_driver = { - .name = "Technisat/B2C2 FlexCop II/IIb/III PCI", + .name = "b2c2_flexcop_pci", .id_table = flexcop_pci_tbl, - .probe = flexcop_pci_probe, - .remove = flexcop_pci_remove, + .probe = flexcop_pci_probe, + .remove = flexcop_pci_remove, }; static int __init flexcop_pci_module_init(void)