From c4ee3fd469302884dda95e1f310d5ffcd9f5acf9 Mon Sep 17 00:00:00 2001 From: Johannes Stezenbach Date: Mon, 16 May 2005 21:54:15 -0700 Subject: [PATCH] dvb: flexcop: use hw pid filter - enabled the HW PID by default for the PCI cards - correct the TS demux parsing when PID filter is enabled (and thus the timer IRQ) - rewrote the PID-filter and FULLTS control part in flexcop-hw-filter (thanks to Krzysztof Matula for pointing that out) Signed-off-by: Patrick Boettcher Signed-off-by: Johannes Stezenbach Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/media/dvb/b2c2/flexcop-pci.c | 28 ++++++++++++++++------------ 1 file changed, 16 insertions(+), 12 deletions(-) (limited to 'drivers/media/dvb/b2c2/flexcop-pci.c') diff --git a/drivers/media/dvb/b2c2/flexcop-pci.c b/drivers/media/dvb/b2c2/flexcop-pci.c index c52286ea669..78952096fb7 100644 --- a/drivers/media/dvb/b2c2/flexcop-pci.c +++ b/drivers/media/dvb/b2c2/flexcop-pci.c @@ -9,7 +9,7 @@ #define FC_LOG_PREFIX "flexcop-pci" #include "flexcop-common.h" -static int enable_pid_filtering = 0; +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"); @@ -45,13 +45,14 @@ struct flexcop_pci { void __iomem *io_mem; u32 irq; /* buffersize (at least for DMA1, need to be % 188 == 0, - * this is logic is required */ + * 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 */ + int count; spinlock_t irq_lock; @@ -99,15 +100,6 @@ static irqreturn_t flexcop_pci_irq(int irq, void *dev_id, struct pt_regs *regs) spin_lock_irq(&fc_pci->irq_lock); - deb_irq("irq: %08x cur_addr: %08x (%d), our addrs. 1: %08x 2: %08x; 0x000: " - "%08x, 0x00c: %08x\n",v.raw, - fc->read_ibi_reg(fc,dma1_008).dma_0x8.dma_cur_addr << 2, - fc_pci->active_dma1_addr, - fc_pci->dma[0].dma_addr0,fc_pci->dma[0].dma_addr1, - fc->read_ibi_reg(fc,dma1_000).raw, - fc->read_ibi_reg(fc,dma1_00c).raw); - - 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); @@ -123,21 +115,28 @@ 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); + /* buffer end was reached, restarted from the beginning * 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); 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 - 1) - 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) { + 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); } + deb_irq("\n"); fc_pci->last_dma1_cur_pos = cur_pos; } else @@ -301,6 +300,11 @@ static int flexcop_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e fc->stream_control = flexcop_pci_stream_control; + if (enable_pid_filtering) + info("will use the HW PID filter."); + else + info("will pass the complete TS to the demuxer."); + fc->pid_filtering = enable_pid_filtering; fc->bus_type = FC_PCI; -- cgit v1.2.3