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path: root/drivers/media/dvb/b2c2/flexcop-dma.c
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Diffstat (limited to 'drivers/media/dvb/b2c2/flexcop-dma.c')
-rw-r--r--drivers/media/dvb/b2c2/flexcop-dma.c172
1 files changed, 0 insertions, 172 deletions
diff --git a/drivers/media/dvb/b2c2/flexcop-dma.c b/drivers/media/dvb/b2c2/flexcop-dma.c
deleted file mode 100644
index 2881e0d956a..00000000000
--- a/drivers/media/dvb/b2c2/flexcop-dma.c
+++ /dev/null
@@ -1,172 +0,0 @@
-/*
- * Linux driver for digital TV devices equipped with B2C2 FlexcopII(b)/III
- * flexcop-dma.c - configuring and controlling the DMA of the FlexCop
- * see flexcop.c for copyright information
- */
-#include "flexcop.h"
-
-int flexcop_dma_allocate(struct pci_dev *pdev,
- struct flexcop_dma *dma, u32 size)
-{
- u8 *tcpu;
- dma_addr_t tdma = 0;
-
- if (size % 2) {
- err("dma buffersize has to be even.");
- return -EINVAL;
- }
-
- if ((tcpu = pci_alloc_consistent(pdev, size, &tdma)) != NULL) {
- dma->pdev = pdev;
- dma->cpu_addr0 = tcpu;
- dma->dma_addr0 = tdma;
- dma->cpu_addr1 = tcpu + size/2;
- dma->dma_addr1 = tdma + size/2;
- dma->size = size/2;
- return 0;
- }
- return -ENOMEM;
-}
-EXPORT_SYMBOL(flexcop_dma_allocate);
-
-void flexcop_dma_free(struct flexcop_dma *dma)
-{
- pci_free_consistent(dma->pdev, dma->size*2,
- dma->cpu_addr0, dma->dma_addr0);
- memset(dma,0,sizeof(struct flexcop_dma));
-}
-EXPORT_SYMBOL(flexcop_dma_free);
-
-int flexcop_dma_config(struct flexcop_device *fc,
- struct flexcop_dma *dma,
- flexcop_dma_index_t dma_idx)
-{
- flexcop_ibi_value v0x0,v0x4,v0xc;
- v0x0.raw = v0x4.raw = v0xc.raw = 0;
-
- v0x0.dma_0x0.dma_address0 = dma->dma_addr0 >> 2;
- v0xc.dma_0xc.dma_address1 = dma->dma_addr1 >> 2;
- v0x4.dma_0x4_write.dma_addr_size = dma->size / 4;
-
- if ((dma_idx & FC_DMA_1) == dma_idx) {
- fc->write_ibi_reg(fc,dma1_000,v0x0);
- fc->write_ibi_reg(fc,dma1_004,v0x4);
- fc->write_ibi_reg(fc,dma1_00c,v0xc);
- } else if ((dma_idx & FC_DMA_2) == dma_idx) {
- fc->write_ibi_reg(fc,dma2_010,v0x0);
- fc->write_ibi_reg(fc,dma2_014,v0x4);
- fc->write_ibi_reg(fc,dma2_01c,v0xc);
- } else {
- err("either DMA1 or DMA2 can be configured within one "
- "flexcop_dma_config call.");
- return -EINVAL;
- }
-
- return 0;
-}
-EXPORT_SYMBOL(flexcop_dma_config);
-
-/* start the DMA transfers, but not the DMA IRQs */
-int flexcop_dma_xfer_control(struct flexcop_device *fc,
- flexcop_dma_index_t dma_idx,
- flexcop_dma_addr_index_t index,
- int onoff)
-{
- flexcop_ibi_value v0x0,v0xc;
- flexcop_ibi_register r0x0,r0xc;
-
- if ((dma_idx & FC_DMA_1) == dma_idx) {
- r0x0 = dma1_000;
- r0xc = dma1_00c;
- } else if ((dma_idx & FC_DMA_2) == dma_idx) {
- r0x0 = dma2_010;
- r0xc = dma2_01c;
- } else {
- err("either transfer DMA1 or DMA2 can be started within one "
- "flexcop_dma_xfer_control call.");
- return -EINVAL;
- }
-
- v0x0 = fc->read_ibi_reg(fc,r0x0);
- v0xc = fc->read_ibi_reg(fc,r0xc);
-
- deb_rdump("reg: %03x: %x\n",r0x0,v0x0.raw);
- deb_rdump("reg: %03x: %x\n",r0xc,v0xc.raw);
-
- if (index & FC_DMA_SUBADDR_0)
- v0x0.dma_0x0.dma_0start = onoff;
-
- if (index & FC_DMA_SUBADDR_1)
- v0xc.dma_0xc.dma_1start = onoff;
-
- fc->write_ibi_reg(fc,r0x0,v0x0);
- fc->write_ibi_reg(fc,r0xc,v0xc);
-
- deb_rdump("reg: %03x: %x\n",r0x0,v0x0.raw);
- deb_rdump("reg: %03x: %x\n",r0xc,v0xc.raw);
- return 0;
-}
-EXPORT_SYMBOL(flexcop_dma_xfer_control);
-
-static int flexcop_dma_remap(struct flexcop_device *fc,
- flexcop_dma_index_t dma_idx,
- int onoff)
-{
- flexcop_ibi_register r = (dma_idx & FC_DMA_1) ? dma1_00c : dma2_01c;
- flexcop_ibi_value v = fc->read_ibi_reg(fc,r);
- deb_info("%s\n",__func__);
- v.dma_0xc.remap_enable = onoff;
- fc->write_ibi_reg(fc,r,v);
- return 0;
-}
-
-int flexcop_dma_control_size_irq(struct flexcop_device *fc,
- flexcop_dma_index_t no,
- int onoff)
-{
- flexcop_ibi_value v = fc->read_ibi_reg(fc,ctrl_208);
-
- if (no & FC_DMA_1)
- v.ctrl_208.DMA1_IRQ_Enable_sig = onoff;
-
- if (no & FC_DMA_2)
- v.ctrl_208.DMA2_IRQ_Enable_sig = onoff;
-
- fc->write_ibi_reg(fc,ctrl_208,v);
- return 0;
-}
-EXPORT_SYMBOL(flexcop_dma_control_size_irq);
-
-int flexcop_dma_control_timer_irq(struct flexcop_device *fc,
- flexcop_dma_index_t no,
- int onoff)
-{
- flexcop_ibi_value v = fc->read_ibi_reg(fc,ctrl_208);
-
- if (no & FC_DMA_1)
- v.ctrl_208.DMA1_Timer_Enable_sig = onoff;
-
- if (no & FC_DMA_2)
- v.ctrl_208.DMA2_Timer_Enable_sig = onoff;
-
- fc->write_ibi_reg(fc,ctrl_208,v);
- return 0;
-}
-EXPORT_SYMBOL(flexcop_dma_control_timer_irq);
-
-/* 1 cycles = 1.97 msec */
-int flexcop_dma_config_timer(struct flexcop_device *fc,
- flexcop_dma_index_t dma_idx, u8 cycles)
-{
- flexcop_ibi_register r = (dma_idx & FC_DMA_1) ? dma1_004 : dma2_014;
- flexcop_ibi_value v = fc->read_ibi_reg(fc,r);
-
- flexcop_dma_remap(fc,dma_idx,0);
-
- deb_info("%s\n",__func__);
- v.dma_0x4_write.dmatimer = cycles;
- fc->write_ibi_reg(fc,r,v);
- return 0;
-}
-EXPORT_SYMBOL(flexcop_dma_config_timer);
-