Merge with Linux 2.2.1.

10 files changed, 347 insertions, 27 deletions

diff --git a/drivers/block/paride/Config.in b/drivers/block/paride/Config.in
index 00dd9c8e4..8d4dc1742 100644
--- a/drivers/block/paride/Config.in
+++ b/drivers/block/paride/Config.in
@@ -16,6 +16,7 @@ dep_tristate '    FIT TD-2000 protocol' CONFIG_PARIDE_FIT2 $CONFIG_PARIDE
 dep_tristate '    FIT TD-3000 protocol' CONFIG_PARIDE_FIT3 $CONFIG_PARIDE
 dep_tristate '    Shuttle EPAT/EPEZ protocol' CONFIG_PARIDE_EPAT $CONFIG_PARIDE
 dep_tristate '    Shuttle EPIA protocol' CONFIG_PARIDE_EPIA $CONFIG_PARIDE
+dep_tristate '    Freecom IQ ASIC-2 protocol' CONFIG_PARIDE_FRIQ $CONFIG_PARIDE
 dep_tristate '    FreeCom power protocol' CONFIG_PARIDE_FRPW $CONFIG_PARIDE
 dep_tristate '    KingByte KBIC-951A/971A protocols' CONFIG_PARIDE_KBIC $CONFIG_PARIDE
 dep_tristate '    KT PHd protocol' CONFIG_PARIDE_KTTI $CONFIG_PARIDE
diff --git a/drivers/block/paride/Makefile b/drivers/block/paride/Makefile
index ae2d54dd9..32e856704 100644
--- a/drivers/block/paride/Makefile
+++ b/drivers/block/paride/Makefile
@@ -147,6 +147,15 @@ else
   endif
 endif
 
+
+ifeq ($(CONFIG_PARIDE_FRIQ),y)
+  LX_OBJS += friq.o
+else
+  ifeq ($(CONFIG_PARIDE_FRIQ),m)
+    M_OBJS += friq.o
+  endif
+endif
+
 ifeq ($(CONFIG_PARIDE_ON20),y)
   LX_OBJS += on20.o
 else
diff --git a/drivers/block/paride/friq.c b/drivers/block/paride/friq.c
new file mode 100644
index 000000000..37ebaa047
--- /dev/null
+++ b/drivers/block/paride/friq.c
@@ -0,0 +1,282 @@
+/* 
+	friq.c	(c) 1998    Grant R. Guenther <grant@torque.net>
+		            Under the terms of the GNU public license
+
+	friq.c is a low-level protocol driver for the Freecom "IQ"
+	parallel port IDE adapter.   Early versions of this adapter
+	use the 'frpw' protocol.
+	
+	Freecom uses this adapter in a battery powered external 
+	CD-ROM drive.  It is also used in LS-120 drives by
+	Maxell and Panasonic, and other devices.
+
+	The battery powered drive requires software support to
+	control the power to the drive.  This module enables the
+	drive power when the high level driver (pcd) is loaded
+	and disables it when the module is unloaded.  Note, if
+	the friq module is built in to the kernel, the power
+	will never be switched off, so other means should be
+	used to conserve battery power.
+
+*/
+
+/* Changes:
+
+	1.01	GRG 1998.12.20	 Added support for soft power switch
+*/
+
+#define	FRIQ_VERSION	"1.01" 
+
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <asm/io.h>
+
+#include "paride.h"
+
+#define CMD(x)		w2(4);w0(0xff);w0(0xff);w0(0x73);w0(0x73);\
+			w0(0xc9);w0(0xc9);w0(0x26);w0(0x26);w0(x);w0(x);
+
+#define j44(l,h)	(((l>>4)&0x0f)|(h&0xf0))
+
+/* cont = 0 - access the IDE register file 
+   cont = 1 - access the IDE command set 
+*/
+
+static int  cont_map[2] = { 0x08, 0x10 };
+
+static int friq_read_regr( PIA *pi, int cont, int regr )
+
+{	int	h,l,r;
+
+	r = regr + cont_map[cont];
+
+	CMD(r);
+	w2(6); l = r1();
+	w2(4); h = r1();
+	w2(4); 
+
+	return j44(l,h);
+
+}
+
+static void friq_write_regr( PIA *pi, int cont, int regr, int val)
+
+{	int r;
+
+        r = regr + cont_map[cont];
+
+	CMD(r);
+	w0(val);
+	w2(5);w2(7);w2(5);w2(4);
+}
+
+static void friq_read_block_int( PIA *pi, char * buf, int count, int regr )
+
+{       int     h, l, k, ph;
+
+        switch(pi->mode) {
+
+        case 0: CMD(regr); 
+                for (k=0;k<count;k++) {
+                        w2(6); l = r1();
+                        w2(4); h = r1();
+                        buf[k] = j44(l,h);
+                }
+                w2(4);
+                break;
+
+        case 1: ph = 2;
+                CMD(regr+0xc0); 
+                w0(0xff);
+                for (k=0;k<count;k++) {
+                        w2(0xa4 + ph); 
+                        buf[k] = r0();
+                        ph = 2 - ph;
+                } 
+                w2(0xac); w2(0xa4); w2(4);
+                break;
+
+	case 2: CMD(regr+0x80);
+		for (k=0;k<count-2;k++) buf[k] = r4();
+		w2(0xac); w2(0xa4);
+		buf[count-2] = r4();
+		buf[count-1] = r4();
+		w2(4);
+		break;
+
+	case 3: CMD(regr+0x80);
+                for (k=0;k<(count/2)-1;k++) ((u16 *)buf)[k] = r4w();
+                w2(0xac); w2(0xa4);
+                buf[count-2] = r4();
+                buf[count-1] = r4();
+                w2(4);
+                break;
+
+	case 4: CMD(regr+0x80);
+                for (k=0;k<(count/4)-1;k++) ((u32 *)buf)[k] = r4l();
+                buf[count-4] = r4();
+                buf[count-3] = r4();
+                w2(0xac); w2(0xa4);
+                buf[count-2] = r4();
+                buf[count-1] = r4();
+                w2(4);
+                break;
+
+        }
+}
+
+static void friq_read_block( PIA *pi, char * buf, int count)
+
+{	friq_read_block_int(pi,buf,count,0x08);
+}
+
+static void friq_write_block( PIA *pi, char * buf, int count )
+ 
+{	int	k;
+
+	switch(pi->mode) {
+
+	case 0:
+	case 1: CMD(8); w2(5);
+        	for (k=0;k<count;k++) {
+			w0(buf[k]);
+			w2(7);w2(5);
+		}
+		w2(4);
+		break;
+
+	case 2: CMD(0xc8); w2(5);
+		for (k=0;k<count;k++) w4(buf[k]);
+		w2(4);
+		break;
+
+        case 3: CMD(0xc8); w2(5);
+                for (k=0;k<count/2;k++) w4w(((u16 *)buf)[k]);
+                w2(4);
+                break;
+
+        case 4: CMD(0xc8); w2(5);
+                for (k=0;k<count/4;k++) w4l(((u32 *)buf)[k]);
+                w2(4);
+                break;
+	}
+}
+
+static void friq_connect ( PIA *pi  )
+
+{       pi->saved_r0 = r0();
+        pi->saved_r2 = r2();
+	w2(4);
+}
+
+static void friq_disconnect ( PIA *pi )
+
+{       CMD(0x20);
+	w0(pi->saved_r0);
+        w2(pi->saved_r2);
+} 
+
+static int friq_test_proto( PIA *pi, char * scratch, int verbose )
+
+{       int     j, k, r;
+	int	e[2] = {0,0};
+
+	pi->saved_r0 = r0();	
+	w0(0xff); udelay(20); CMD(0x3d); /* turn the power on */
+	udelay(500);
+	w0(pi->saved_r0);
+
+	friq_connect(pi);
+	for (j=0;j<2;j++) {
+                friq_write_regr(pi,0,6,0xa0+j*0x10);
+                for (k=0;k<256;k++) {
+                        friq_write_regr(pi,0,2,k^0xaa);
+                        friq_write_regr(pi,0,3,k^0x55);
+                        if (friq_read_regr(pi,0,2) != (k^0xaa)) e[j]++;
+                        }
+                }
+	friq_disconnect(pi);
+
+	friq_connect(pi);
+        friq_read_block_int(pi,scratch,512,0x10);
+        r = 0;
+        for (k=0;k<128;k++) if (scratch[k] != k) r++;
+	friq_disconnect(pi);
+
+        if (verbose)  {
+            printk("%s: friq: port 0x%x, mode %d, test=(%d,%d,%d)\n",
+                   pi->device,pi->port,pi->mode,e[0],e[1],r);
+        }
+
+        return (r || (e[0] && e[1]));
+}
+
+
+static void friq_log_adapter( PIA *pi, char * scratch, int verbose )
+
+{       char    *mode_string[6] = {"4-bit","8-bit",
+				   "EPP-8","EPP-16","EPP-32"};
+
+        printk("%s: friq %s, Freecom IQ ASIC-2 adapter at 0x%x, ", pi->device,
+		FRIQ_VERSION,pi->port);
+        printk("mode %d (%s), delay %d\n",pi->mode,
+		mode_string[pi->mode],pi->delay);
+
+	pi->private = 1;
+	friq_connect(pi);
+	CMD(0x9e);  		/* disable sleep timer */
+	friq_disconnect(pi);
+
+}
+
+static void friq_init_proto( PIA *pi)
+
+{       MOD_INC_USE_COUNT;
+	pi->private = 0;
+}
+
+static void friq_release_proto( PIA *pi)
+
+{       if (pi->private) {		/* turn off the power */
+		friq_connect(pi);
+		CMD(0x1d); CMD(0x1e);
+		friq_disconnect(pi);
+		pi->private = 0;
+	}
+
+	MOD_DEC_USE_COUNT;
+}
+
+struct pi_protocol friq = {"friq",0,5,2,1,1,
+                           friq_write_regr,
+                           friq_read_regr,
+                           friq_write_block,
+                           friq_read_block,
+                           friq_connect,
+                           friq_disconnect,
+                           0,
+                           0,
+                           friq_test_proto,
+                           friq_log_adapter,
+                           friq_init_proto,
+                           friq_release_proto
+                          };
+
+
+#ifdef MODULE
+
+int     init_module(void)
+
+{       return pi_register( &friq ) - 1;
+}
+
+void    cleanup_module(void)
+
+{       pi_unregister( &friq );
+}
+
+#endif
+
+/* end of friq.c */
diff --git a/drivers/block/paride/frpw.c b/drivers/block/paride/frpw.c
index 680f9e592..f4c98c645 100644
--- a/drivers/block/paride/frpw.c
+++ b/drivers/block/paride/frpw.c
@@ -5,6 +5,12 @@
 	frpw.c is a low-level protocol driver for the Freecom "Power"
 	parallel port IDE adapter.
 	
+	Some applications of this adapter may require a "printer" reset
+	prior to loading the driver.  This can be done by loading and
+	unloading the "lp" driver, or it can be done by this driver
+	if you define FRPW_HARD_RESET.  The latter is not recommended
+	as it may upset devices on other ports.
+
 */
 
 /* Changes:
@@ -13,10 +19,11 @@
 			       fix chip detect
 			       added EPP-16 and EPP-32
 	1.02    GRG 1998.09.23 added hard reset to initialisation process
+	1.03    GRG 1998.12.14 made hard reset conditional
 
 */
 
-#define	FRPW_VERSION	"1.02" 
+#define	FRPW_VERSION	"1.03" 
 
 #include <linux/module.h>
 #include <linux/delay.h>
@@ -185,8 +192,10 @@ static int frpw_test_pnp ( PIA *pi )
 
 {	int olddelay, a, b;
 
+#ifdef FRPW_HARD_RESET
         w0(0); w2(8); udelay(50); w2(0xc);   /* parallel bus reset */
         mdelay(1500);
+#endif
 
 	olddelay = pi->delay;
 	pi->delay = 10;
diff --git a/drivers/block/paride/jumbo b/drivers/block/paride/jumbo
index b952fde92..f4b8ebf75 100644
--- a/drivers/block/paride/jumbo
+++ b/drivers/block/paride/jumbo
@@ -53,11 +53,11 @@ FPROTO=-DCONFIG_PARIDE_`echo "$PROTO" | tr [a-z] [A-Z]`
 FK="-D__KERNEL__ -I ../../../include"
 FLCH=-D_LINUX_CONFIG_H
 #
-echo cc $FK $FSMP $FLCH $FPARP $FPROTO -Wall -O2 -o Jb.o -c paride.c
-cc $FK $FSMP $FLCH $FPARP $FPROTO -Wall -O2 -o Jb.o -c paride.c
+echo cc $FK $FSMP $FLCH $FPARP $FPROTO $FMODV -Wall -O2 -o Jb.o -c paride.c
+cc $FK $FSMP $FLCH $FPARP $FPROTO $FMODV -Wall -O2 -o Jb.o -c paride.c
 #
-echo cc $FK $FSMP -Wall -O2 -o Jp.o -c $PROTO.c
-cc $FK $FSMP -Wall -O2 -o Jp.o -c $PROTO.c
+echo cc $FK $FSMP $FMODV -Wall -O2 -o Jp.o -c $PROTO.c
+cc $FK $FSMP $FMODV -Wall -O2 -o Jp.o -c $PROTO.c
 #
 echo cc $FK $FSMP $FMODV -DMODULE -DPARIDE_JUMBO -Wall -O2 -o Jd.o -c $HLD.c
 cc $FK $FSMP $FMODV -DMODULE -DPARIDE_JUMBO -Wall -O2 -o Jd.o -c $HLD.c
diff --git a/drivers/block/paride/on26.c b/drivers/block/paride/on26.c
index 78477593e..91dcad101 100644
--- a/drivers/block/paride/on26.c
+++ b/drivers/block/paride/on26.c
@@ -11,10 +11,12 @@
 
         1.01    GRG 1998.05.06 init_proto, release_proto
 	1.02    GRG 1998.09.23 updates for the -E rev chip
+	1.03    GRG 1998.12.14 fix for slave drives
+	1.04    GRG 1998.12.20 yet another bug fix
 
 */
 
-#define ON26_VERSION      "1.02"
+#define ON26_VERSION      "1.04"
 
 #include <linux/module.h>
 #include <linux/delay.h>
@@ -118,9 +120,11 @@ static void on26_disconnect ( PIA *pi )
         w2(pi->saved_r2);
 } 
 
+#define	RESET_WAIT  200
+
 static int on26_test_port( PIA *pi)  /* hard reset */
 
-{       int     i, m, d;
+{       int     i, m, d, x, y;
 
         pi->saved_r0 = r0();
         pi->saved_r2 = r2();
@@ -151,11 +155,18 @@ static int on26_test_port( PIA *pi)  /* hard reset */
             
             on26_write_regr(pi,0,6,0xa0);
 
-            for (i=0;i<100;i++) {
-                if (!(on26_read_regr(pi,0,7) & 0x80)) break;
-                udelay(100000);
+            for (i=0;i<RESET_WAIT;i++) {
+                on26_write_regr(pi,0,6,0xa0);
+                x = on26_read_regr(pi,0,7);
+                on26_write_regr(pi,0,6,0xb0);
+                y = on26_read_regr(pi,0,7);
+                if (!((x&0x80)||(y&0x80))) break;
+                mdelay(100);
             }
 
+	    if (i == RESET_WAIT) 
+		printk("on26: Device reset failed (%x,%x)\n",x,y);
+
             w0(4); P1; w0(4); P1;
         }
 
@@ -189,7 +200,7 @@ static void on26_read_block( PIA *pi, char * buf, int count )
         case 1: w0(1); P1; w0(1); P2; w0(2); P1; w0(0x19); P2; w0(0); P1;
 		udelay(10);
                 for (k=0;k<count/2;k++) {
-                        w2(0x26); buf[2*k] = r0(); 
+                        w2(0x26); buf[2*k] = r0();  
 			w2(0x24); buf[2*k+1] = r0();
                 }
                 w0(2); P1; w0(9); P2;
diff --git a/drivers/block/paride/paride.c b/drivers/block/paride/paride.c
index 068deffd6..6e962d8c1 100644
--- a/drivers/block/paride/paride.c
+++ b/drivers/block/paride/paride.c
@@ -12,10 +12,11 @@
 	1.01	GRG 1998.05.03	Use spinlocks
 	1.02	GRG 1998.05.05  init_proto, release_proto, ktti
 	1.03	GRG 1998.08.15  eliminate compiler warning
+	1.04    GRG 1998.11.28  added support for FRIQ 
 
 */
 
-#define PI_VERSION      "1.03"
+#define PI_VERSION      "1.04"
 
 #include <linux/module.h>
 #include <linux/config.h>
@@ -450,6 +451,11 @@ void	paride_init( void )
           pi_register(&frpw);
         };
 #endif
+#ifdef CONFIG_PARIDE_FRIQ
+        { extern struct pi_protocol friq;
+          pi_register(&friq);
+        };
+#endif 
 #ifdef CONFIG_PARIDE_FIT2
         { extern struct pi_protocol fit2;
           pi_register(&fit2);
diff --git a/drivers/block/paride/pg.c b/drivers/block/paride/pg.c
index 1563a2afc..89c83db65 100644
--- a/drivers/block/paride/pg.c
+++ b/drivers/block/paride/pg.c
@@ -367,21 +367,21 @@ static int pg_wait( int unit, int go, int stop, int tmo, char * msg )
 	PG.status = 0;
 
 	j = 0;
-	while ((((r=RR(1,6))&go)||(stop&&(!(r&stop))))&&(jiffies<tmo)) {
+	while ((((r=RR(1,6))&go)||(stop&&(!(r&stop))))&&(time_before(jiffies,tmo))) {
 		if (j++ < PG_SPIN) udelay(PG_SPIN_DEL);
 		else pg_sleep(1);
 	}
 
-	if ((r&(STAT_ERR&stop))||(jiffies>=tmo)) {
+	if ((r&(STAT_ERR&stop))||time_after_eq(jiffies, tmo)) {
 	   s = RR(0,7);
 	   e = RR(0,1);
 	   p = RR(0,2);
 	   if (verbose > 1)
 	     printk("%s: %s: stat=0x%x err=0x%x phase=%d%s\n",
-		   PG.name,msg,s,e,p,(jiffies>=tmo)?" timeout":"");
+		   PG.name,msg,s,e,p,time_after_eq(jiffies, tmo)?" timeout":"");
 
 
-	   if (jiffies>=tmo) e |= 0x100;
+	   if (time_after_eq(jiffies, tmo)) e |= 0x100;
 	   PG.status = (e >> 4) & 0xff;
 	   return -1;
 	}
diff --git a/drivers/block/paride/pseudo.h b/drivers/block/paride/pseudo.h
index 17615c2ca..3992f3c30 100644
--- a/drivers/block/paride/pseudo.h
+++ b/drivers/block/paride/pseudo.h
@@ -16,19 +16,21 @@
 	when either it returns true, or timeout jiffies have passed,
 	continuation() will be invoked.
 
-	If nice is true, the test will done approximately once a
+	If nice is 1, the test will done approximately once a
 	jiffy.  If nice is 0, the test will also be done whenever
-	the scheduler runs (by adding it to a task queue).
+	the scheduler runs (by adding it to a task queue).  If
+	nice is greater than 1, the test will be done once every
+	(nice-1) jiffies. 
 
 */
 
 /* Changes:
 
 	1.01	1998.05.03	Switched from cli()/sti() to spinlocks
-
+	1.02    1998.12.14      Added support for nice > 1
 */
 	
-#define PS_VERSION	"1.01"
+#define PS_VERSION	"1.02"
 
 #include <linux/sched.h>
 #include <linux/timer.h>
@@ -37,15 +39,15 @@
 static void ps_timer_int( unsigned long data);
 static void ps_tq_int( void *data);
 
-static int ps_use_tq = 1;
 static void (* ps_continuation)(void);
 static int (* ps_ready)(void);
 static int ps_then;
 static int ps_timeout;
 static int ps_timer_active = 0;
 static int ps_tq_active = 0;
+static int ps_nice = 0;
 
-static spinlock_t ps_spinlock = SPIN_LOCK_UNLOCKED;
+static spinlock_t ps_spinlock __attribute__((unused)) = SPIN_LOCK_UNLOCKED;
 
 static struct timer_list ps_timer = {0,0,0,0,ps_timer_int};
 static struct tq_struct ps_tq = {0,0,ps_tq_int,NULL};
@@ -62,9 +64,9 @@ static void ps_set_intr( void (*continuation)(void),
 	ps_ready = ready;
         ps_then = jiffies;
 	ps_timeout = jiffies + timeout;
-	ps_use_tq = !nice;
+	ps_nice = nice;
 
-        if (ps_use_tq && !ps_tq_active) {
+        if (!ps_nice && !ps_tq_active) {
 #ifdef HAVE_DISABLE_HLT
                 disable_hlt();
 #endif
@@ -74,7 +76,7 @@ static void ps_set_intr( void (*continuation)(void),
 
         if (!ps_timer_active) {
 		ps_timer_active = 1;
-                ps_timer.expires = jiffies;
+                ps_timer.expires = jiffies + ((ps_nice>0)?(ps_nice-1):0);
                 add_timer(&ps_timer);
         }
 
@@ -136,7 +138,7 @@ static void ps_timer_int( unsigned long data)
 		return;
 		}
 	ps_timer_active = 1;
-        ps_timer.expires = jiffies;
+        ps_timer.expires = jiffies + ((ps_nice>0)?(ps_nice-1):0);
         add_timer(&ps_timer);
         spin_unlock_irqrestore(&ps_spinlock,flags);
 }
diff --git a/drivers/block/paride/pt.c b/drivers/block/paride/pt.c
index 1a09c84b0..2616319f7 100644
--- a/drivers/block/paride/pt.c
+++ b/drivers/block/paride/pt.c
@@ -471,7 +471,7 @@ static int pt_poll_dsc( int unit, int pause, int tmo, char *msg )
 
 {	int	k, e, s;
 
-	k = 0;
+	k = 0; e = 0; s = 0;
 	while (k < tmo) {
 		pt_sleep(pause);
 		k++;