From 197fb8d85707d07eab68ac17d20e95c7104f1d5e Mon Sep 17 00:00:00 2001 From: Ondrej Zary Date: Tue, 17 Nov 2015 19:24:02 +0100 Subject: [PATCH] atp870u: Add wide_chip parameter to is870() and is885() Don't check chip_ver in is870() but add wide_chip parameter for that. Then add the non-wide support to is885(). Signed-off-by: Ondrej Zary Reviewed-by: Hannes Reinicke Acked-by: Christoph Hellwig Signed-off-by: Martin K. Petersen --- drivers/scsi/atp870u.c | 46 +++++++++++++++++++++++------------------- 1 file changed, 25 insertions(+), 21 deletions(-) diff --git a/drivers/scsi/atp870u.c b/drivers/scsi/atp870u.c index d10026a734d7..0548d0750986 100644 --- a/drivers/scsi/atp870u.c +++ b/drivers/scsi/atp870u.c @@ -41,7 +41,7 @@ static struct scsi_host_template atp870u_template; static void send_s870(struct atp_unit *dev,unsigned char c); -static void is885(struct atp_unit *dev, unsigned char c, unsigned char lvdmode); +static void is885(struct atp_unit *dev, unsigned char c, bool wide_chip, unsigned char lvdmode); static void tscam_885(void); static inline void atp_writeb_base(struct atp_unit *atp, u8 reg, u8 val) @@ -1162,7 +1162,7 @@ static void tscam(struct Scsi_Host *host) } } -static void is870(struct atp_unit *dev, unsigned char c) +static void is870(struct atp_unit *dev, unsigned char c, bool wide_chip) { unsigned char i, j, k, rmb, n; unsigned short int m; @@ -1177,9 +1177,8 @@ static void is870(struct atp_unit *dev, unsigned char c) atp_writeb_io(dev, c, 0x3a, atp_readb_io(dev, c, 0x3a) | 0x10); for (i = 0; i < 16; i++) { - if ((dev->chip_ver != 4) && (i > 7)) { + if (!wide_chip && (i > 7)) break; - } m = 1; m = m << i; if ((m & dev->active_id[c]) != 0) { @@ -1189,11 +1188,7 @@ static void is870(struct atp_unit *dev, unsigned char c) printk(KERN_INFO " ID: %2d Host Adapter\n", dev->host_id[c]); continue; } - if (dev->chip_ver == 4) { - atp_writeb_io(dev, c, 0x1b, 0x01); - } else { - atp_writeb_io(dev, c, 0x1b, 0x00); - } + atp_writeb_io(dev, c, 0x1b, wide_chip ? 0x01 : 0x00); atp_writeb_io(dev, c, 1, 0x08); atp_writeb_io(dev, c, 2, 0x7f); atp_writeb_io(dev, c, 3, satn[0]); @@ -1262,7 +1257,7 @@ sel_ok: while (atp_readb_io(dev, c, 0x17) != 0x8e) cpu_relax(); - if (dev->chip_ver == 4) + if (wide_chip) atp_writeb_io(dev, c, 0x1b, 0x00); atp_writeb_io(dev, c, 0x18, 0x08); @@ -1298,9 +1293,8 @@ inq_ok: dev->id[c][i].devtype = mbuf[0]; rmb = mbuf[1]; n = mbuf[7]; - if (dev->chip_ver != 4) { + if (!wide_chip) goto not_wide; - } if ((mbuf[7] & 0x60) == 0) { goto not_wide; } @@ -1807,7 +1801,7 @@ flash_ok_880: outb(0x20, base_io + 0x51); tscam(shpnt); - is885(p, 0, atp_readb_base(p, 0x3f) & 0x40); + is885(p, 0, true, atp_readb_base(p, 0x3f) & 0x40); outb(0xb0, base_io + 0x38); shpnt->max_id = 16; shpnt->this_id = host_id; @@ -1953,10 +1947,10 @@ flash_ok_885: tscam_885(); printk(KERN_INFO " Scanning Channel A SCSI Device ...\n"); - is885(p, 0, atp_readb_io(p, 0, 0x1b) >> 7); + is885(p, 0, true, atp_readb_io(p, 0, 0x1b) >> 7); atp_writeb_io(p, 0, 0x16, 0x80); printk(KERN_INFO " Scanning Channel B SCSI Device ...\n"); - is885(p, 1, atp_readb_io(p, 1, 0x1b) >> 7); + is885(p, 1, true, atp_readb_io(p, 1, 0x1b) >> 7); atp_writeb_io(p, 1, 0x16, 0x80); k = inb(base_io + 0x28) & 0xcf; k |= 0xc0; @@ -2038,7 +2032,7 @@ flash_ok_885: outb(0x20, base_io + 0x11); tscam(shpnt); - is870(p, 0); + is870(p, 0, p->chip_ver == 4); outb((inb(base_io + 0x3a) & 0xef), base_io + 0x3a); outb((inb(base_io + 0x3b) | 0x20), base_io + 0x3b); if (atpdev->chip_ver == 4) @@ -2258,7 +2252,7 @@ static void tscam_885(void) -static void is885(struct atp_unit *dev, unsigned char c, unsigned char lvdmode) +static void is885(struct atp_unit *dev, unsigned char c, bool wide_chip, unsigned char lvdmode) { unsigned char i, j, k, rmb, n; unsigned short int m; @@ -2273,6 +2267,8 @@ static void is885(struct atp_unit *dev, unsigned char c, unsigned char lvdmode) static unsigned char u3[9] = { 0x80, 1, 6, 4, 0x09, 00, 0x0e, 0x01, 0x02 }; for (i = 0; i < 16; i++) { + if (!wide_chip && (i > 7)) + break; m = 1; m = m << i; if ((m & dev->active_id[c]) != 0) { @@ -2282,7 +2278,7 @@ static void is885(struct atp_unit *dev, unsigned char c, unsigned char lvdmode) printk(KERN_INFO " ID: %2d Host Adapter\n", dev->host_id[c]); continue; } - atp_writeb_io(dev, c, 0x1b, 0x01); + atp_writeb_io(dev, c, 0x1b, wide_chip ? 0x01 : 0x00); atp_writeb_io(dev, c, 1, 0x08); atp_writeb_io(dev, c, 2, 0x7f); atp_writeb_io(dev, c, 3, satn[0]); @@ -2351,7 +2347,9 @@ sel_ok: while (atp_readb_io(dev, c, 0x17) != 0x8e) cpu_relax(); - atp_writeb_io(dev, c, 0x1b, 0x00); + if (wide_chip) + atp_writeb_io(dev, c, 0x1b, 0x00); + atp_writeb_io(dev, c, 0x18, 0x08); j = 0; rd_inq_data: @@ -2385,11 +2383,17 @@ inq_ok: dev->id[c][i].devtype = mbuf[0]; rmb = mbuf[1]; n = mbuf[7]; + if (!wide_chip) + goto not_wide; if ((mbuf[7] & 0x60) == 0) { goto not_wide; } - if ((i < 8) && ((dev->global_map[c] & 0x20) == 0)) { - goto not_wide; + if (dev->dev_id == ATP885_DEVID || dev->dev_id == ATP880_DEVID1 || dev->dev_id == ATP880_DEVID2) { + if ((i < 8) && ((dev->global_map[c] & 0x20) == 0)) + goto not_wide; + } else { /* result of is870() merge - is this a bug? */ + if ((dev->global_map[c] & 0x20) == 0) + goto not_wide; } if (lvdmode == 0) { goto chg_wide; -- 2.20.1