Add VFS mount

init.z80

@@ -11,11 +11,11 @@ ld d, h
 ld c, 8
 bp_call_sf:
 call set_frame
-; ld iy, vfs_name ; Load and run the initrd driver
-; call run_file
-; vfs_loaded:
-; call yield ; Yield to let the initrd driver initialize
-; vfs_returned:
+ld iy, vfs_name ; Load and run the initrd driver
+call run_file
+vfs_loaded:
+call yield ; Yield to let the initrd driver initialize
+vfs_returned:
 ld iy, initrd_driver_name ; Load and run the initrd driver
 call run_file
 initrd_driver_loaded:
@@ -45,32 +45,22 @@ pop de
 ld c, 0xA
 call set_frame 
 frame_done:
-; Set up an open message to the initrd FS for "init.elf"
+; Set up a register FS message to the VFS for "a" at mailbox 1
 ld hl, (mailbox_num)
 ld (0xA000), hl
-ld a, 0x0 ; Open operation
+ld a, 0x0 ; Register FS operation
 ld (0xA002), a
-ld a, 0x69 ; i
+ld a, 0x61 ; 'a'
 ld (0xA003), a
-ld a, 0x6e ; n
+ld a, 0x0 ; '\0'
 ld (0xA004), a
-ld a, 0x69 ; i
-ld (0xA005), a
-ld a, 0x74 ; t
-ld (0xA006), a
-ld a, 0x2e ; .
-ld (0xA007), a
-ld a, 0x65 ; e
-ld (0xA008), a
-ld a, 0x6c ; l
-ld (0xA009), a
-ld a, 0x66 ; f
-ld (0xA00a), a
-ld a, 0x0 ; NUL
-ld (0xA00b), a
+ld a, 0x1
+ld (0xA011), a
+ld a, 0x0
+ld (0xA012), a
 push de
 push bc
-ld de, 1 ; Get the mailbox number for the initrd driver
+ld de, 2 ; Get the mailbox number for the VFS
 call proc_map_get
 pmg_done:
 pop bc
@@ -89,35 +79,118 @@ cp 0
 jp nz, loop
 ld a, (0xA001)
 ld c, a
-open_done:
-; Set up a read message to the initrd FS for init.elf starting at 0x10 and reading 0x50 bytes 
+register_done:
+; Set up a mount message to the VFS for "" on "/" with fs "a" at mailbox 1
 ld hl, (mailbox_num)
 ld (0xA000), hl
-ld a, 0x1 ; Read operation 
+ld a, 0x1 ; Mount operation
 ld (0xA002), a
-ld a, c ; FD
+ld a, 0x2F ; '/'
 ld (0xA003), a
-ld hl, 0x10
-ld (0xA004), hl ; File offset
-ld hl, 0x50
-ld (0xA006), hl ; Read length
-ld de, 1 ; Get the mailbox number for the initrd driver
+ld a, 0x0 ; '\0'
+ld (0xA004), a
+ld a, 0x0 ; '\0'
+ld (0xA0FF), a
+ld a, 0x61 ; 'a'
+ld (0xA1FF), a
+ld a, 0x0 ; '\0'
+ld (0xA200), a
+push de
+push bc
+ld de, 2 ; Get the mailbox number for the VFS
 call proc_map_get
-read_pmg_done:
-ld a, (msg_phys_addr)
-ld c, a
-ld de, (msg_phys_addr+1)
+mount_pmg_done:
+pop bc
+pop de
+ld c, b ; Send the message
 ld ix, 0x0000
 call mb_send
-read_loop:
+mount_loop:
 call yield
-read_loop_yield_done:
+mount_loop_yield_done:
 ld hl, (mailbox_num)
 call mb_read ; Read a message
-read_mb_read_done:
+mount_mb_read_done:
 ld a, b ; Loop if there is no message
 cp 0
-jp nz, read_loop
+jp nz, loop
+ld a, (0xA001)
+ld c, a
+mount_done:
+
+; Set up an open message to the initrd FS for "init.elf"
+; ld hl, (mailbox_num)
+; ld (0xA000), hl
+; ld a, 0x0 ; Open operation
+; ld (0xA002), a
+; ld a, 0x69 ; i
+; ld (0xA003), a
+; ld a, 0x6e ; n
+; ld (0xA004), a
+; ld a, 0x69 ; i
+; ld (0xA005), a
+; ld a, 0x74 ; t
+; ld (0xA006), a
+; ld a, 0x2e ; .
+; ld (0xA007), a
+; ld a, 0x65 ; e
+; ld (0xA008), a
+; ld a, 0x6c ; l
+; ld (0xA009), a
+; ld a, 0x66 ; f
+; ld (0xA00a), a
+; ld a, 0x0 ; NUL
+; ld (0xA00b), a
+; push de
+; push bc
+; ld de, 1 ; Get the mailbox number for the initrd driver
+; call proc_map_get
+; pmg_done:
+; pop bc
+; pop de
+; ld c, b ; Send the message
+; ld ix, 0x0000
+; call mb_send
+; loop:
+; call yield
+; loop_yield_done:
+; ld hl, (mailbox_num)
+; call mb_read ; Read a message
+; mb_read_done:
+; ld a, b ; Loop if there is no message
+; cp 0
+; jp nz, loop
+; ld a, (0xA001)
+; ld c, a
+; open_done:
+; ; Set up a read message to the initrd FS for init.elf starting at 0x10 and reading 0x50 bytes 
+; ld hl, (mailbox_num)
+; ld (0xA000), hl
+; ld a, 0x1 ; Read operation 
+; ld (0xA002), a
+; ld a, c ; FD
+; ld (0xA003), a
+; ld hl, 0x10
+; ld (0xA004), hl ; File offset
+; ld hl, 0x50
+; ld (0xA006), hl ; Read length
+; ld de, 1 ; Get the mailbox number for the initrd driver
+; call proc_map_get
+; read_pmg_done:
+; ld a, (msg_phys_addr)
+; ld c, a
+; ld de, (msg_phys_addr+1)
+; ld ix, 0x0000
+; call mb_send
+; read_loop:
+; call yield
+; read_loop_yield_done:
+; ld hl, (mailbox_num)
+; call mb_read ; Read a message
+; read_mb_read_done:
+; ld a, b ; Loop if there is no message
+; cp 0
+; jp nz, read_loop
 
 halt
 

vfs.z80

@@ -23,7 +23,7 @@ ld (hl), 0x0
 ldir
 call get_free_mailbox
 push hl
-ld de, 1
+ld de, 2
 call proc_map_set
 pop hl
 ld (vfs_mailbox_num), hl
@@ -84,7 +84,7 @@ ldir
 ld a, (fs_count)
 inc a
 ld (fs_count), a
-ret
+jp operation_done
 
 ; String pointer 1 in IX, 2 in IY
 ; Return in A
@@ -122,9 +122,6 @@ push de
 ld hl, 0xB003
 ld bc, 252
 ldir
-ld a, (mount_count)
-inc a
-ld (mount_count), a
 ; FS type at 0xB1FF
 ld a, (fs_count)
 ld b, a
@@ -133,7 +130,7 @@ ld de, 0x10
 mount_loop1:
 push hl
 pop ix
-ld iy, 0xB0FF
+ld iy, 0xB1FF
 push bc
 call strcmp
 pop bc
@@ -155,6 +152,7 @@ ld (ix+1), d
 push ix
 ld a, 0x2
 ld (0x8000), a
+push de
 ld hl, 0xB0FF
 ld de, 0x8001
 ld bc, 256
@@ -163,6 +161,7 @@ ld a, (send_page_addr)
 ld c, a
 ld de, (send_page_addr+1)
 ld ix, 0x0
+pop hl
 call mb_send
 mount_wait_loop:
 call yield
@@ -176,8 +175,10 @@ ld a, (0x8000)
 ld (ix+2), a
 ld a, (0x8001)
 ld (ix+3), a
-
-ret  
+ld a, (mount_count)
+inc a
+ld (mount_count), a
+jp operation_done
 
 ; String pointer 1 in IX, 2 in IY
 ; Return in A