57  *	Reads ATA taskfile status register for currently-selected device
74  *	Reads ATA taskfile alternate status register for
186  *	Sleep until ATA Status register bit BSY clears,
248  *	Sleep until ATA Status register bit BSY clears, or timeout
268  *	Writes ATA taskfile device control register.
285  *	ata_sff_dev_select - Select device 0/1 on ATA bus
286  *	@ap: ATA channel to manipulate
287  *	@device: ATA device (numbered from zero) to select
289  *	Use the method defined in the ATA specification to
291  *	ATA channel.  Works with both PIO and MMIO.
313  *	ata_dev_select - Select device 0/1 on ATA bus
314  *	@ap: ATA channel to manipulate
315  *	@device: ATA device (numbered from zero) to select
319  *	Use the method defined in the ATA specification to
321  *	ATA channel.
386  *	@tf: ATA taskfile register set
388  *	Outputs ATA taskfile to standard ATA host controller.
444  *	ata_sff_tf_read - input device's ATA taskfile shadow registers
446  *	@tf: ATA taskfile register set for storing input
448  *	Reads ATA taskfile registers for currently-selected device
485  *	ata_sff_exec_command - issue ATA command to host controller
487  *	@tf: ATA taskfile register set
489  *	Issues ATA command, with proper synchronization with interrupt
497 	DPRINTK("ata%u: cmd 0x%X\n", ap->print_id, tf->command);  in ata_sff_exec_command()
505  *	ata_tf_to_host - issue ATA taskfile to host controller
507  *	@tf: ATA taskfile register set
509  *	Issues ATA taskfile register set to ATA host controller,
658  *	Transfer qc->sect_size bytes of data from/to the ATA device.
687 	 * split still has to be dword aligned like all ATA data transfers.  in ata_pio_sector()
716  *	ATA device for the DRQ request.
891 	VPRINTK("ata%u: xfering %d bytes\n", ap->print_id, bytes);  in atapi_pio_bytes()
1005 	DPRINTK("ata%u: protocol %d task_state %d (dev_stat 0x%X)\n",  in ata_sff_hsm_move()
1111 			/* ATA PIO protocol */  in ata_sff_hsm_move()
1131 					ata_ehi_push_desc(ehi, "ST-ATA: "  in ata_sff_hsm_move()
1162 					ata_ehi_push_desc(ehi, "ST-ATA: "  in ata_sff_hsm_move()
1207 		DPRINTK("ata%u: dev %u command complete, drv_stat 0x%x\n",  in ata_sff_hsm_move()
1230 		WARN(true, "ata%d: SFF host state machine in invalid state %d",  in ata_sff_hsm_move()
1481 	VPRINTK("ata%u: protocol %d task_state %d\n",  in __ata_sff_port_intr()
1616  *	ata_sff_interrupt - Default SFF ATA host interrupt handler
1766  *	@ap: ATA channel to examine
1770  *	Hale Landis's ATADRVR (www.ata-atapi.com), and
1771  *	later found its way into the ATA/ATAPI spec.
1773  *	Write a pattern to the ATA shadow registers,
1776  *	ATA shadow register contents.
1807  *	ata_sff_dev_classify - Parse returned ATA device signature
1808  *	@dev: ATA device to classify (starting at zero)
1813  *	an ATA/ATAPI-defined set of values is placed in the ATA
1817  *	Select the ATA device, and read the values from the ATA shadow
1855 	/* determine if device is ATA or ATAPI */  in ata_sff_dev_classify()
1861 		 * Assume ATA device if the device seems present but  in ata_sff_dev_classify()
1959 	DPRINTK("ata%u: bus reset via SRST\n", ap->print_id);  in ata_bus_softreset()
1976  *	ata_sff_softreset - reset host port via ATA SRST
1977  *	@link: ATA link to reset
1981  *	Reset host port using ATA SRST.
2018 	/* determine by signature whether we have ATA or ATAPI devices */  in ata_sff_softreset()
2223  *	ata_pci_sff_init_host - acquire native PCI ATA resources and init host
2224  *	@host: target ATA host
2226  *	Acquire native PCI ATA resources for @host and initialize the
2302  *	ata_pci_sff_prepare_host - helper to prepare PCI PIO-only SFF ATA host
2305  *	@r_host: out argument for the initialized ATA host
2307  *	Helper to allocate PIO-only SFF ATA host for @pdev, acquire
2328 		dev_err(&pdev->dev, "failed to allocate ATA host\n");  in ata_pci_sff_prepare_host()
2349  *	@host: target SFF ATA host
2353  *	This is the counterpart of ata_host_activate() for SFF ATA
2380 		 * ATA spec says we should use legacy mode when one  in ata_pci_sff_activate_host()
2692  *	Prepare ATA taskfile for submission.
2712  *	Prepare ATA taskfile for submission.
2809 		VPRINTK("ata%u: host_stat 0x%X\n", ap->print_id, host_stat);  in ata_bmdma_port_intr()
2836  *	ata_bmdma_interrupt - Default BMDMA ATA host interrupt handler
2936  *	@ap: Port associated with this ATA transaction.
2958  *	@qc: Info associated with this ATA transaction.
2987  *	@qc: Info associated with this ATA transaction.
3009 	 * without first all the MMIO ATA cards/mobos.  in ata_bmdma_start()
3045  *	@ap: Port associated with this ATA transaction.
3114  *	Some PCI ATA devices report simplex mode but in fact can be told to
3149  *	ata_pci_bmdma_init - acquire PCI BMDMA resources and init ATA host
3150  *	@host: target ATA host
3206  *	ata_pci_bmdma_prepare_host - helper to prepare PCI BMDMA ATA host
3209  *	@r_host: out argument for the initialized ATA host
3211  *	Helper to allocate BMDMA ATA host for @pdev, acquire all PCI
3265  *	ata_sff_port_init - Initialize SFF/BMDMA ATA port