C++ (Cpp) ata_sff_exec_command示例

示例#1

文件： sata_dwc_460ex.c 项目： MiniBlu/cm11_kernel_htc_msm8974a3ul

static void sata_dwc_exec_command_by_tag(struct ata_port *ap,
        struct ata_taskfile *tf,
        u8 tag, u32 cmd_issued)
{
    unsigned long flags;
    struct sata_dwc_device_port *hsdevp = HSDEVP_FROM_AP(ap);

    dev_dbg(ap->dev, "%s cmd(0x%02x): %s tag=%d\n", __func__, tf->command,
            ata_get_cmd_descript(tf->command), tag);

    spin_lock_irqsave(&ap->host->lock, flags);
    hsdevp->cmd_issued[tag] = cmd_issued;
    spin_unlock_irqrestore(&ap->host->lock, flags);
    clear_serror();
    ata_sff_exec_command(ap, tf);
}

示例#2

/*
 * Function : sata_dwc_exec_command_by_tag
 * arguments : ata_port *ap, ata_taskfile *tf, u8 tag, u32 cmd_issued
 * Return value : None
 * This function keeps track of individual command tag ids and calls
 * ata_exec_command in libata
 */
static void sata_dwc_exec_command_by_tag(struct ata_port *ap,
					 struct ata_taskfile *tf,
					 u8 tag, u32 cmd_issued)
{
	unsigned long flags;
	struct sata_dwc_device_port *hsdevp = HSDEVP_FROM_AP(ap);

	dev_dbg(ap->dev, "%s cmd(0x%02x): %s tag=%d\n", __func__, tf->command,
		ata_get_cmd_descript(tf->command), tag);

	spin_lock_irqsave(&ap->host->lock, flags);
	hsdevp->cmd_issued[tag] = cmd_issued;
	spin_unlock_irqrestore(&ap->host->lock, flags);
	/*
	 * Clear SError before executing a new command.
	 * sata_dwc_scr_write and read can not be used here. Clearing the PM
	 * managed SError register for the disk needs to be done before the
	 * task file is loaded.
	 */
	clear_serror();
	ata_sff_exec_command(ap, tf);
}