From: Alan Cox <alan@linux.intel.com>
Date: Sun, 13 May 2018 17:34:56 +0000 (+0100)
Subject: ubee: floppy support for direct to user copies
X-Git-Url: https://git.ndcode.org/public/gitweb.cgi?a=commitdiff_plain;h=d7e9c2126dab9b90ff9263122eb0cdb445040659;p=FUZIX.git

ubee: floppy support for direct to user copies
---

diff --git a/Kernel/platform-ubee/README b/Kernel/platform-ubee/README
index b1c665f5..6e0ab290 100644
--- a/Kernel/platform-ubee/README
+++ b/Kernel/platform-ubee/README
@@ -104,9 +104,9 @@ Done so far:
 - Non premium video setup				COLOUR DONE
 - Support RAM font setting				DONE
 - Figure out how I broke the 6545 cursor		DONE
+- Debugging floppy driver - need to add direct I/O to user support	DONE
 
 In Progress
-- Debugging floppy driver - we seem to have broken it
 - Swap
 - Graphics not just vt interfaces
 - RAM based fonts
diff --git a/Kernel/platform-ubee/floppy.s b/Kernel/platform-ubee/floppy.s
index c4e209dc..2233c5b1 100644
--- a/Kernel/platform-ubee/floppy.s
+++ b/Kernel/platform-ubee/floppy.s
@@ -12,6 +12,9 @@
 	.globl _fd_motor_on
 	.globl fd_nmi_handler
 
+	.globl map_kernel
+	.globl map_process_always
+
 FDCREG	.equ	0x40
 FDCTRK	.equ	0x41
 FDCSEC	.equ	0x42
@@ -39,6 +42,7 @@ TRACK	.equ	1
 SECTOR	.equ	2
 DIRECT	.equ	3		; 0 = read 2 = write 1 = status
 DATA	.equ	4
+USER	.equ	6
 
 	.area	_COMMONMEM
 ;
@@ -178,6 +182,10 @@ fdiosetup:
 	ld	a, (fdcctrl)
 	ld	d, a			; we need this in a register
 					; to meet timing
+	ld	a, USER(ix)
+	or	a
+	call	nz, map_process_always
+
 	ld	a, #1
 	ld	(fdc_active), a		; NMI pop and jump
 	jr	z, fdio_in
@@ -190,6 +198,7 @@ fdiosetup:
 ;
 fdxferdone:
 	ei
+	call	map_kernel
 fdxferdone2:
 	xor	a
 	ld	(fdc_active), a