diff options
Diffstat (limited to 'drivers/media/dvb/b2c2/flexcop-pci.c')
-rw-r--r-- | drivers/media/dvb/b2c2/flexcop-pci.c | 164 |
1 files changed, 82 insertions, 82 deletions
diff --git a/drivers/media/dvb/b2c2/flexcop-pci.c b/drivers/media/dvb/b2c2/flexcop-pci.c index 84d2252045c..227c0200b70 100644 --- a/drivers/media/dvb/b2c2/flexcop-pci.c +++ b/drivers/media/dvb/b2c2/flexcop-pci.c @@ -1,9 +1,7 @@ /* - * This file is part of 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. + * 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" @@ -11,7 +9,8 @@ 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"); +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); @@ -26,17 +25,17 @@ MODULE_PARM_DESC(irq_chk_intv, "set the interval for IRQ streaming watchdog."); #define DEBSTATUS " (debugging is not enabled)" #endif -#define deb_info(args...) dprintk(0x01,args) -#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) +#define deb_info(args...) dprintk(0x01, args) +#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; module_param(debug, int, 0644); MODULE_PARM_DESC(debug, "set debug level (1=info,2=regs,4=TS,8=irqdma,16=check (|-able))." - DEBSTATUS); + DEBSTATUS); #define DRIVER_VERSION "0.1" #define DRIVER_NAME "Technisat/B2C2 FlexCop II/IIb/III Digital TV PCI Driver" @@ -51,30 +50,30 @@ struct flexcop_pci { void __iomem *io_mem; u32 irq; -/* buffersize (at least for DMA1, need to be % 188 == 0, - * this logic is required */ + /* buffersize (at least for DMA1, need to be % 188 == 0, + * this logic is required */ #define FC_DEFAULT_DMA1_BUFSIZE (1280 * 188) #define FC_DEFAULT_DMA2_BUFSIZE (10 * 188) struct flexcop_dma dma[2]; int active_dma1_addr; /* 0 = addr0 of dma1; 1 = addr1 of dma1 */ - u32 last_dma1_cur_pos; /* position of the pointer last time the timer/packet irq occured */ + u32 last_dma1_cur_pos; + /* position of the pointer last time the timer/packet irq occured */ int count; int count_prev; int stream_problem; spinlock_t irq_lock; - unsigned long last_irq; struct delayed_work irq_check_work; - struct flexcop_device *fc_dev; }; -static int lastwreg,lastwval,lastrreg,lastrval; +static int lastwreg, lastwval, lastrreg, lastrval; -static flexcop_ibi_value flexcop_pci_read_ibi_reg (struct flexcop_device *fc, flexcop_ibi_register r) +static flexcop_ibi_value flexcop_pci_read_ibi_reg(struct flexcop_device *fc, + flexcop_ibi_register r) { struct flexcop_pci *fc_pci = fc->bus_specific; flexcop_ibi_value v; @@ -82,19 +81,20 @@ static flexcop_ibi_value flexcop_pci_read_ibi_reg (struct flexcop_device *fc, fl if (lastrreg != r || lastrval != v.raw) { lastrreg = r; lastrval = v.raw; - deb_reg("new rd: %3x: %08x\n",r,v.raw); + deb_reg("new rd: %3x: %08x\n", r, v.raw); } return v; } -static int flexcop_pci_write_ibi_reg(struct flexcop_device *fc, flexcop_ibi_register r, flexcop_ibi_value v) +static int flexcop_pci_write_ibi_reg(struct flexcop_device *fc, + flexcop_ibi_register r, flexcop_ibi_value v) { struct flexcop_pci *fc_pci = fc->bus_specific; if (lastwreg != r || lastwval != v.raw) { lastwreg = r; lastwval = v.raw; - deb_reg("new wr: %3x: %08x\n",r,v.raw); + deb_reg("new wr: %3x: %08x\n", r, v.raw); } writel(v.raw, fc_pci->io_mem + r); @@ -117,12 +117,12 @@ static void flexcop_pci_irq_check_work(struct work_struct *work) spin_lock_irq(&fc->demux.lock); list_for_each_entry(feed, &fc->demux.feed_list, - list_head) { + list_head) { flexcop_pid_feed_control(fc, feed, 0); } list_for_each_entry(feed, &fc->demux.feed_list, - list_head) { + list_head) { flexcop_pid_feed_control(fc, feed, 1); } spin_unlock_irq(&fc->demux.lock); @@ -150,11 +150,10 @@ static irqreturn_t flexcop_pci_isr(int irq, void *dev_id) flexcop_ibi_value v; irqreturn_t ret = IRQ_HANDLED; - spin_lock_irqsave(&fc_pci->irq_lock,flags); - - v = fc->read_ibi_reg(fc,irq_20c); + spin_lock_irqsave(&fc_pci->irq_lock, flags); + v = fc->read_ibi_reg(fc, irq_20c); - /* errors */ + /* errors */ if (v.irq_20c.Data_receiver_error) deb_chk("data receiver error\n"); if (v.irq_20c.Continuity_error_flag) @@ -165,24 +164,29 @@ static irqreturn_t flexcop_pci_isr(int irq, void *dev_id) deb_chk("Transport error\n"); if ((fc_pci->count % 1000) == 0) - deb_chk("%d valid irq took place so far\n",fc_pci->count); + 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); + flexcop_pass_dmx_packets(fc_pci->fc_dev, + fc_pci->dma[0].cpu_addr0, + fc_pci->dma[0].size / 188); else - flexcop_pass_dmx_packets(fc_pci->fc_dev,fc_pci->dma[0].cpu_addr1,fc_pci->dma[0].size / 188); + flexcop_pass_dmx_packets(fc_pci->fc_dev, + fc_pci->dma[0].cpu_addr1, + fc_pci->dma[0].size / 188); deb_irq("page change to page: %d\n",!fc_pci->active_dma1_addr); fc_pci->active_dma1_addr = !fc_pci->active_dma1_addr; - } else if (v.irq_20c.DMA1_Timer_Status == 1) { /* 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.dma_cur_addr << 2; u32 cur_pos = cur_addr - fc_pci->dma[0].dma_addr0; - deb_irq("%u irq: %08x cur_addr: %llx: cur_pos: %08x, last_cur_pos: %08x ", + 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); @@ -192,30 +196,36 @@ static irqreturn_t flexcop_pci_isr(int irq, void *dev_id) * pass the data from last_cur_pos to the buffer end to the demux */ if (cur_pos < fc_pci->last_dma1_cur_pos) { - deb_irq(" end was reached: passing %d bytes ",(fc_pci->dma[0].size*2 - 1) - fc_pci->last_dma1_cur_pos); + deb_irq(" end was reached: passing %d bytes ", + (fc_pci->dma[0].size*2 - 1) - + fc_pci->last_dma1_cur_pos); flexcop_pass_dmx_data(fc_pci->fc_dev, - 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->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; } if (cur_pos > fc_pci->last_dma1_cur_pos) { - deb_irq(" passing %d bytes ",cur_pos - fc_pci->last_dma1_cur_pos); + deb_irq(" passing %d bytes ", + cur_pos - fc_pci->last_dma1_cur_pos); flexcop_pass_dmx_data(fc_pci->fc_dev, - fc_pci->dma[0].cpu_addr0 + fc_pci->last_dma1_cur_pos, - cur_pos - fc_pci->last_dma1_cur_pos); + fc_pci->dma[0].cpu_addr0 + + fc_pci->last_dma1_cur_pos, + cur_pos - fc_pci->last_dma1_cur_pos); } deb_irq("\n"); fc_pci->last_dma1_cur_pos = cur_pos; fc_pci->count++; } else { - deb_irq("isr for flexcop called, apparently without reason (%08x)\n",v.raw); + deb_irq("isr for flexcop called, " + "apparently without reason (%08x)\n", v.raw); ret = IRQ_NONE; } - spin_unlock_irqrestore(&fc_pci->irq_lock,flags); - + spin_unlock_irqrestore(&fc_pci->irq_lock, flags); return ret; } @@ -223,52 +233,48 @@ 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); - flexcop_dma_config(fc,&fc_pci->dma[1],FC_DMA_2); - - flexcop_dma_config_timer(fc,FC_DMA_1,0); - - flexcop_dma_xfer_control(fc,FC_DMA_1,FC_DMA_SUBADDR_0 | FC_DMA_SUBADDR_1,1); + flexcop_dma_config(fc, &fc_pci->dma[0], FC_DMA_1); + flexcop_dma_config(fc, &fc_pci->dma[1], FC_DMA_2); + flexcop_dma_config_timer(fc, FC_DMA_1, 0); + flexcop_dma_xfer_control(fc, FC_DMA_1, + FC_DMA_SUBADDR_0 | FC_DMA_SUBADDR_1, 1); deb_irq("DMA xfer enabled\n"); fc_pci->last_dma1_cur_pos = 0; - flexcop_dma_control_timer_irq(fc,FC_DMA_1,1); + flexcop_dma_control_timer_irq(fc, FC_DMA_1, 1); deb_irq("IRQ enabled\n"); - fc_pci->count_prev = fc_pci->count; - -// fc_pci->active_dma1_addr = 0; -// flexcop_dma_control_size_irq(fc,FC_DMA_1,1); - } else { - flexcop_dma_control_timer_irq(fc,FC_DMA_1,0); + flexcop_dma_control_timer_irq(fc, FC_DMA_1, 0); deb_irq("IRQ 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); + 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; } static int flexcop_pci_dma_init(struct flexcop_pci *fc_pci) { int ret; - if ((ret = flexcop_dma_allocate(fc_pci->pdev,&fc_pci->dma[0],FC_DEFAULT_DMA1_BUFSIZE)) != 0) + ret = flexcop_dma_allocate(fc_pci->pdev, &fc_pci->dma[0], + FC_DEFAULT_DMA1_BUFSIZE); + if (ret != 0) return ret; - if ((ret = flexcop_dma_allocate(fc_pci->pdev,&fc_pci->dma[1],FC_DEFAULT_DMA2_BUFSIZE)) != 0) { + ret = flexcop_dma_allocate(fc_pci->pdev, &fc_pci->dma[1], + FC_DEFAULT_DMA2_BUFSIZE); + if (ret != 0) { flexcop_dma_free(&fc_pci->dma[0]); return ret; } - flexcop_sram_set_dest(fc_pci->fc_dev,FC_SRAM_DEST_MEDIA | FC_SRAM_DEST_NET, FC_SRAM_DEST_TARGET_DMA1); - flexcop_sram_set_dest(fc_pci->fc_dev,FC_SRAM_DEST_CAO | FC_SRAM_DEST_CAI, FC_SRAM_DEST_TARGET_DMA2); - + flexcop_sram_set_dest(fc_pci->fc_dev, FC_SRAM_DEST_MEDIA | + FC_SRAM_DEST_NET, FC_SRAM_DEST_TARGET_DMA1); + 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; - return ret; } @@ -291,12 +297,8 @@ static int flexcop_pci_init(struct flexcop_pci *fc_pci) if ((ret = pci_enable_device(fc_pci->pdev)) != 0) return ret; - pci_set_master(fc_pci->pdev); - /* enable interrupts */ - // pci_write_config_dword(pdev, 0x6c, 0x8000); - if ((ret = pci_request_regions(fc_pci->pdev, DRIVER_NAME)) != 0) goto err_pci_disable_device; @@ -339,8 +341,8 @@ static void flexcop_pci_exit(struct flexcop_pci *fc_pci) fc_pci->init_state &= ~FC_PCI_INIT; } - -static int flexcop_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) +static int flexcop_pci_probe(struct pci_dev *pdev, + const struct pci_device_id *ent) { struct flexcop_device *fc; struct flexcop_pci *fc_pci; @@ -351,7 +353,7 @@ static int flexcop_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e return -ENOMEM; } -/* general flexcop init */ + /* general flexcop init */ fc_pci = fc->bus_specific; fc_pci->fc_dev = fc; @@ -359,7 +361,6 @@ static int flexcop_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e fc->write_ibi_reg = flexcop_pci_write_ibi_reg; fc->i2c_request = flexcop_i2c_request; fc->get_mac_addr = flexcop_eeprom_check_mac_addr; - fc->stream_control = flexcop_pci_stream_control; if (enable_pid_filtering) @@ -369,29 +370,29 @@ static int flexcop_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e fc->pid_filtering = enable_pid_filtering; fc->bus_type = FC_PCI; - fc->dev = &pdev->dev; fc->owner = THIS_MODULE; -/* bus specific part */ + /* bus specific part */ fc_pci->pdev = pdev; if ((ret = flexcop_pci_init(fc_pci)) != 0) goto err_kfree; -/* init flexcop */ + /* init flexcop */ if ((ret = flexcop_device_initialize(fc)) != 0) goto err_pci_exit; -/* init dma */ + /* init dma */ if ((ret = flexcop_pci_dma_init(fc_pci)) != 0) goto err_fc_exit; INIT_DELAYED_WORK(&fc_pci->irq_check_work, flexcop_pci_irq_check_work); - if (irq_chk_intv > 0) - schedule_delayed_work(&fc_pci->irq_check_work, - msecs_to_jiffies(irq_chk_intv < 100 ? 100 : irq_chk_intv)); - + if (irq_chk_intv > 0) + schedule_delayed_work(&fc_pci->irq_check_work, + msecs_to_jiffies(irq_chk_intv < 100 ? + 100 : + irq_chk_intv)); return ret; err_fc_exit: @@ -421,7 +422,6 @@ 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) }, ? */ { }, }; |