38 lines
894 B
C
38 lines
894 B
C
#include "tw5864.h"
|
|
|
|
void tw5864_indir_writeb(struct tw5864_dev *dev, u16 addr, u8 data)
|
|
{
|
|
int retries = 30000;
|
|
|
|
while (tw_readl(TW5864_IND_CTL) & BIT(31) && --retries)
|
|
;
|
|
if (!retries)
|
|
dev_err(&dev->pci->dev,
|
|
"tw_indir_writel() retries exhausted before writing\n");
|
|
|
|
tw_writel(TW5864_IND_DATA, data);
|
|
tw_writel(TW5864_IND_CTL, addr << 2 | TW5864_RW | TW5864_ENABLE);
|
|
}
|
|
|
|
u8 tw5864_indir_readb(struct tw5864_dev *dev, u16 addr)
|
|
{
|
|
int retries = 30000;
|
|
|
|
while (tw_readl(TW5864_IND_CTL) & BIT(31) && --retries)
|
|
;
|
|
if (!retries)
|
|
dev_err(&dev->pci->dev,
|
|
"tw_indir_readl() retries exhausted before reading\n");
|
|
|
|
tw_writel(TW5864_IND_CTL, addr << 2 | TW5864_ENABLE);
|
|
|
|
retries = 30000;
|
|
while (tw_readl(TW5864_IND_CTL) & BIT(31) && --retries)
|
|
;
|
|
if (!retries)
|
|
dev_err(&dev->pci->dev,
|
|
"tw_indir_readl() retries exhausted at reading\n");
|
|
|
|
return tw_readl(TW5864_IND_DATA);
|
|
}
|