1 /* SPDX-License-Identifier: GPL-2.0 */
3 /* Driver for 53c700 and 53c700-66 chips from NCR and Symbios
17 /* Turn on for general debugging---too verbose for normal use */
41 #define NCR_700_LUN_MASK		(NCR_700_MAX_LUNS - 1)
81 	 * for the annoying SCSI-2 requirement for LUN information in
89 /* The SYNC negotiation sequence looks like:
100  * 16	negotiated SYNC flag
101  * 17 begin SYNC negotiation flag 
109 	struct NCR_700_Device_Parameters *hostdata = SDp->hostdata;  in NCR_700_get_sense_cmnd()
111 	return hostdata->cmnd;  in NCR_700_get_sense_cmnd()
117 	struct NCR_700_Device_Parameters *hostdata = SDp->hostdata;  in NCR_700_set_depth()
119 	hostdata->depth = depth;  in NCR_700_set_depth()
124 	struct NCR_700_Device_Parameters *hostdata = SDp->hostdata;  in NCR_700_get_depth()
126 	return hostdata->depth;  in NCR_700_get_depth()
129 NCR_700_is_flag_set(struct scsi_device *SDp, __u32 flag)  in NCR_700_is_flag_set()  argument
131 	return (spi_flags(SDp->sdev_target) & flag) == flag;  in NCR_700_is_flag_set()
134 NCR_700_is_flag_clear(struct scsi_device *SDp, __u32 flag)  in NCR_700_is_flag_clear()  argument
136 	return (spi_flags(SDp->sdev_target) & flag) == 0;  in NCR_700_is_flag_clear()
139 NCR_700_set_flag(struct scsi_device *SDp, __u32 flag)  in NCR_700_set_flag()  argument
141 	spi_flags(SDp->sdev_target) |= flag;  in NCR_700_set_flag()
144 NCR_700_clear_flag(struct scsi_device *SDp, __u32 flag)  in NCR_700_clear_flag()  argument
146 	spi_flags(SDp->sdev_target) &= ~flag;  in NCR_700_clear_flag()
158 	return (enum NCR_700_tag_neg_state)((spi_flags(SDp->sdev_target)>>20) & 0x3);  in NCR_700_get_tag_neg_state()
166 	spi_flags(SDp->sdev_target) &= ~(0x3 << 20);  in NCR_700_set_tag_neg_state()
167 	spi_flags(SDp->sdev_target) |= ((__u32)state) << 20;  in NCR_700_set_tag_neg_state()
211 	__u32	noncoherent:1;	/* needs to use non-coherent DMA */
215                                    speed (so can negiotiate sync) */
216 	int	sync_clock;	/* The speed of the SYNC core */
255  *	53C700 Register Interface - the offset from the Selected base
258 #define bE	(hostdata->force_le_on_be ? 0 : 3)
259 #define	bSWAP	(hostdata->force_le_on_be)
260 #define bEBus	(!hostdata->force_le_on_be)
416  * the 53c700-66 cannot handle an offset >8, so don't change this  */
484 		= (struct NCR_700_Host_Parameters *)host->hostdata[0];  in NCR_700_readb()
486 	return ioread8(hostdata->base + (reg^bE));  in NCR_700_readb()
493 		= (struct NCR_700_Host_Parameters *)host->hostdata[0];  in NCR_700_readl()
494 	__u32 value = bEBus ? ioread32be(hostdata->base + reg) :  in NCR_700_readl()
495 		ioread32(hostdata->base + reg);  in NCR_700_readl()
508 		= (struct NCR_700_Host_Parameters *)host->hostdata[0];  in NCR_700_writeb()
510 	iowrite8(value, hostdata->base + (reg^bE));  in NCR_700_writeb()
517 		= (struct NCR_700_Host_Parameters *)host->hostdata[0];  in NCR_700_writel()
524 	bEBus ? iowrite32be(value, hostdata->base + reg):   in NCR_700_writel()
525 		iowrite32(value, hostdata->base + reg);  in NCR_700_writel()