On Mon, Aug 13, 2012 at 10:06:26AM +0800, wei_w...@realsil.com.cn wrote:
> +int rtsx_pci_read_phy_register(struct rtsx_pcr *pcr, u8 addr, u16 *val)
> +{
> + int err, i, finished = 0;
> + u16 data = 0;
> + u8 *ptr, tmp;
> +
> + rtsx_pci_init_cmd(pcr);
> +
> + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PHYADDR, 0xFF, addr);
> + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PHYRWCTL, 0xFF, 0x80);
> +
> + err = rtsx_pci_send_cmd(pcr, 100);
> + if (err < 0)
> + return err;
> +
> + for (i = 0; i < 100000; i++) {
> + err = rtsx_pci_read_register(pcr, PHYRWCTL, &tmp);
> + if (err < 0)
> + return err;
> +
> + if (!(tmp & 0x80)) {
> + finished = 1;
> + break;
> + }
> + }
> +
> + if (!finished)
> + return -ETIMEDOUT;
> +
> + rtsx_pci_init_cmd(pcr);
> +
> + rtsx_pci_add_cmd(pcr, READ_REG_CMD, PHYDATA0, 0, 0);
> + rtsx_pci_add_cmd(pcr, READ_REG_CMD, PHYDATA1, 0, 0);
> +
> + err = rtsx_pci_send_cmd(pcr, 100);
> + if (err < 0)
> + return err;
> +
> + ptr = rtsx_pci_get_cmd_data(pcr);
> + data = ((u16)ptr[1] << 8) || ptr[0];
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Looks like bitwise OR was intended here.
> +
> + if (val)
> + *val = data;
> +
> + return 0;
> +}
regards,
dan carpenter
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