Release 4.7 drivers/media/pci/b2c2/flexcop-dma.c
/*
* 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;
}
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| Total | 117 | 100.00% | 2 | 100.00% |
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));
}
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| Person | Tokens | Prop | Commits | CommitProp |
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| Total | 44 | 100.00% | 1 | 100.00% |
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;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| patrick boettcher | patrick boettcher | 107 | 58.79% | 1 | 33.33% |
| johannes stezenbach | johannes stezenbach | 73 | 40.11% | 1 | 33.33% |
| uwe bugla | uwe bugla | 2 | 1.10% | 1 | 33.33% |
| Total | 182 | 100.00% | 3 | 100.00% |
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;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| patrick boettcher | patrick boettcher | 124 | 61.39% | 1 | 33.33% |
| johannes stezenbach | johannes stezenbach | 76 | 37.62% | 1 | 33.33% |
| uwe bugla | uwe bugla | 2 | 0.99% | 1 | 33.33% |
| Total | 202 | 100.00% | 3 | 100.00% |
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;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| patrick boettcher | patrick boettcher | 57 | 80.28% | 1 | 33.33% |
| johannes stezenbach | johannes stezenbach | 13 | 18.31% | 1 | 33.33% |
| harvey harrison | harvey harrison | 1 | 1.41% | 1 | 33.33% |
| Total | 71 | 100.00% | 3 | 100.00% |
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;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| patrick boettcher | patrick boettcher | 48 | 68.57% | 1 | 50.00% |
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| Total | 70 | 100.00% | 2 | 100.00% |
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;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| johannes stezenbach | johannes stezenbach | 44 | 62.86% | 1 | 50.00% |
| patrick boettcher | patrick boettcher | 26 | 37.14% | 1 | 50.00% |
| Total | 70 | 100.00% | 2 | 100.00% |
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;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| johannes stezenbach | johannes stezenbach | 72 | 91.14% | 1 | 33.33% |
| patrick boettcher | patrick boettcher | 6 | 7.59% | 1 | 33.33% |
| harvey harrison | harvey harrison | 1 | 1.27% | 1 | 33.33% |
| Total | 79 | 100.00% | 3 | 100.00% |
EXPORT_SYMBOL(flexcop_dma_config_timer);
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| johannes stezenbach | johannes stezenbach | 486 | 55.48% | 1 | 20.00% |
| patrick boettcher | patrick boettcher | 381 | 43.49% | 1 | 20.00% |
| uwe bugla | uwe bugla | 5 | 0.57% | 1 | 20.00% |
| hans verkuil | hans verkuil | 2 | 0.23% | 1 | 20.00% |
| harvey harrison | harvey harrison | 2 | 0.23% | 1 | 20.00% |
| Total | 876 | 100.00% | 5 | 100.00% |
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