| #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); |
| } |
