1 // SPDX-License-Identifier: GPL-2.0-only
3  * pata_atiixp.c 	- ATI PATA for new ATA layer
5  *			  (C) 2009-2010 Bartlomiej Zolnierkiewicz
9  *  linux/drivers/ide/pci/atiixp.c	Version 0.01-bart2	Feb. 26, 2004
11  *  Copyright (C) 2003 ATI Inc. <hyu@ati.com>
39 		/* Board has onboard PATA<->SATA converters */
40 		.ident = "MSI E350DM-E33",
43 			DMI_MATCH(DMI_BOARD_NAME, "E350DM-E33(MS-7720)"),
51 	struct pci_dev *pdev = to_pci_dev(ap->host->dev);  in atiixp_cable_detect()
58 	   raw detection not play follow the bios mode guess */  in atiixp_cable_detect()
59 	pci_read_config_byte(pdev, ATIIXP_IDE_UDMA_MODE + ap->port_no, &udma);  in atiixp_cable_detect()
68  *	atiixp_prereset	-	perform reset handling
83 	struct ata_port *ap = link->ap;  in atiixp_prereset()
84 	struct pci_dev *pdev = to_pci_dev(ap->host->dev);  in atiixp_prereset()
86 	if (!pci_test_config_bits(pdev, &atiixp_enable_bits[ap->port_no]))  in atiixp_prereset()
87 		return -ENOENT;  in atiixp_prereset()
93  *	atiixp_set_pio_timing	-	set initial PIO mode data
98  *	timings for PIO transfers. We must load both the mode number and
106 	struct pci_dev *pdev = to_pci_dev(ap->host->dev);  in atiixp_set_pio_timing()
107 	int dn = 2 * ap->port_no + adev->devno;  in atiixp_set_pio_timing()
108 	int timing_shift = (16 * ap->port_no) + 8 * (adev->devno ^ 1);  in atiixp_set_pio_timing()
124  *	atiixp_set_piomode	-	set initial PIO mode data
128  *	Called to do the PIO mode setup. We use a shared helper for this
136 	atiixp_set_pio_timing(ap, adev, adev->pio_mode - XFER_PIO_0);  in atiixp_set_piomode()
141  *	atiixp_set_dmamode	-	set initial DMA mode data
145  *	Called to do the DMA mode setup. We use timing tables for most
146  *	modes but must tune an appropriate PIO mode to match.
153 	struct pci_dev *pdev = to_pci_dev(ap->host->dev);  in atiixp_set_dmamode()
154 	int dma = adev->dma_mode;  in atiixp_set_dmamode()
155 	int dn = 2 * ap->port_no + adev->devno;  in atiixp_set_dmamode()
161 	if (adev->dma_mode >= XFER_UDMA_0) {  in atiixp_set_dmamode()
164 		dma -= XFER_UDMA_0;  in atiixp_set_dmamode()
171 		int timing_shift = (16 * ap->port_no) + 8 * (adev->devno ^ 1);  in atiixp_set_dmamode()
174 		dma -= XFER_MW_DMA_0;  in atiixp_set_dmamode()
184 	 *	We must now look at the PIO mode situation. We may need to  in atiixp_set_dmamode()
185 	 *	adjust the PIO mode to keep the timings acceptable  in atiixp_set_dmamode()
187 	if (adev->dma_mode >= XFER_MW_DMA_2)  in atiixp_set_dmamode()
189 	else if (adev->dma_mode == XFER_MW_DMA_1)  in atiixp_set_dmamode()
191 	else if (adev->dma_mode == XFER_MW_DMA_0)  in atiixp_set_dmamode()
195 	if (adev->pio_mode != wanted_pio)  in atiixp_set_dmamode()
201  *	atiixp_bmdma_start	-	DMA start callback
213 	struct ata_port *ap = qc->ap;  in atiixp_bmdma_start()
214 	struct ata_device *adev = qc->dev;  in atiixp_bmdma_start()
216 	struct pci_dev *pdev = to_pci_dev(ap->host->dev);  in atiixp_bmdma_start()
217 	int dn = (2 * ap->port_no) + adev->devno;  in atiixp_bmdma_start()
230  *	atiixp_dma_stop	-	DMA stop callback
242 	struct ata_port *ap = qc->ap;  in atiixp_bmdma_stop()
243 	struct pci_dev *pdev = to_pci_dev(ap->host->dev);  in atiixp_bmdma_stop()
244 	int dn = (2 * ap->port_no) + qc->dev->devno;  in atiixp_bmdma_stop()
283 	if (pdev->device == PCI_DEVICE_ID_ATI_IXP600_IDE)  in atiixp_init_one()
291 	{ PCI_VDEVICE(ATI, PCI_DEVICE_ID_ATI_IXP200_IDE), },
292 	{ PCI_VDEVICE(ATI, PCI_DEVICE_ID_ATI_IXP300_IDE), },
293 	{ PCI_VDEVICE(ATI, PCI_DEVICE_ID_ATI_IXP400_IDE), },
294 	{ PCI_VDEVICE(ATI, PCI_DEVICE_ID_ATI_IXP600_IDE), },
295 	{ PCI_VDEVICE(ATI, PCI_DEVICE_ID_ATI_IXP700_IDE), },
315 MODULE_DESCRIPTION("low-level driver for ATI IXP200/300/400");