704 lines
13 KiB
HTML
704 lines
13 KiB
HTML
<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/><link rel="stylesheet" type="text/css" href="ca65-doc-style.css"/></head><body><a href="ref_index.html"><h1>ip65 technical reference</h1></a><h1>File : ip65/function_dispatcher.s</h1><pre>this is some very quick and dirty glue to make the most useful IP65 functions available via a single entry point.
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this allows user applications to be developed that don't link ip65 in directly, rather they use an instance of ip65 that is preloaded (or in a cartridge/ROM)
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this whole file could (and should) be greatly optimised by making it all table driven, but since this file is probably only going to be used in a bankswitched ROM where
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space is not at such a premium, I'll go with the gross hack for now.
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</pre><h2 id="functions">functions</h2><table><tr><th>function</th><th>description</th></tr><tr><td id="kipper_dispatcher">kipper_dispatcher</td><td></td></tr></table><h2>implementation</h2><pre id="code">;this is some very quick and dirty glue to make the most useful IP65 functions available via a single entry point.
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;this allows user applications to be developed that don't link ip65 in directly, rather they use an instance of ip65 that is preloaded (or in a cartridge/ROM)
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;this whole file could (and should) be greatly optimised by making it all table driven, but since this file is probably only going to be used in a bankswitched ROM where
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;space is not at such a premium, I'll go with the gross hack for now.
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.ifndef KPR_API_VERSION_NUMBER
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.define EQU =
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.include "../inc/kipper_constants.i"
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.endif
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.include "../inc/common.i"
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.include "../inc/commonprint.i"
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.export kipper_dispatcher
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.import ip65_init
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.import dhcp_init
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.import cfg_get_configuration_ptr
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.import tftp_load_address
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.importzp tftp_filename
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.import tftp_ip
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.import ip65_error
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.import tftp_clear_callbacks
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.import tftp_download
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.import tftp_upload
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.import tftp_set_callback_vector
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.import tftp_filesize
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.import dns_ip
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.import dns_resolve
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.import dns_set_hostname
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.import udp_callback
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.import udp_add_listener
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.import udp_remove_listener
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.import ip_inp
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.import udp_inp
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.import udp_send
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.import udp_send_src
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.import udp_send_src_port
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.import udp_send_dest
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.import udp_send_dest_port
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.import udp_send_len
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.import copymem
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.import cfg_mac
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.import cfg_tftp_server
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.importzp copy_src
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.importzp copy_dest
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;reuse the copy_src zero page location
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kipper_params = copy_src
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buffer_ptr= copy_dest
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.data
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ip_configured_flag:
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.byte 0
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.code
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set_tftp_params:
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ldx #$03
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:
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lda cfg_tftp_server,x
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sta tftp_ip,x
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dex
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bpl :-
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ldy #KPR_TFTP_FILENAME
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lda (kipper_params),y
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sta tftp_filename
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iny
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lda (kipper_params),y
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sta tftp_filename+1
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ldy #KPR_TFTP_POINTER
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lda (kipper_params),y
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sta tftp_load_address
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iny
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lda (kipper_params),y
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sta tftp_load_address+1
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jsr tftp_clear_callbacks
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rts
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set_tftp_callback_vector:
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ldy #KPR_TFTP_POINTER+1
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lda (kipper_params),y
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tax
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dey
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lda (kipper_params),y
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jmp tftp_set_callback_vector
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kipper_dispatcher:
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stax kipper_params
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cpy #KPR_INITIALIZE
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bne :+
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lda ip_configured_flag
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bne ip_configured
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jsr ip65_init
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bcs init_failed
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jsr dhcp_init
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bcc dhcp_ok
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jsr ip65_init ;if DHCP failed, then reinit the IP stack (which will reset IP address etc that DHCP messed with to cartridge default values)
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dhcp_ok:
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lda #1
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sta ip_configured_flag
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clc
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init_failed:
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rts
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ip_configured:
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clc
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rts
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:
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cpy #KPR_GET_IP_CONFIG
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bne :+
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ldax #cfg_mac
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clc
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rts
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:
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cpy #KPR_DNS_RESOLVE
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bne :+
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phax
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ldy #KPR_DNS_HOSTNAME+1
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lda (kipper_params),y
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tax
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dey
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lda (kipper_params),y
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jsr dns_set_hostname
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bcs @dns_error
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jsr dns_resolve
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bcs @dns_error
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ldy #KPR_DNS_HOSTNAME_IP
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plax
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stax kipper_params
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ldx #4
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@copy_dns_ip:
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lda dns_ip,y
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sta (kipper_params),y
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iny
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dex
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bne @copy_dns_ip
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rts
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@dns_error:
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plax
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rts
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:
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cpy #KPR_UDP_ADD_LISTENER
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bne :+
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ldy #KPR_UDP_LISTENER_CALLBACK
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lda (kipper_params),y
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sta udp_callback
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iny
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lda (kipper_params),y
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sta udp_callback+1
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ldy #KPR_UDP_LISTENER_PORT+1
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lda (kipper_params),y
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tax
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dey
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lda (kipper_params),y
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jmp udp_add_listener
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:
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cpy #KPR_GET_INPUT_PACKET_INFO
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bne :+
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ldy #3
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@copy_src_ip:
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lda ip_inp+12,y ;src IP
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sta (kipper_params),y
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dey
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bpl @copy_src_ip
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ldy #KPR_REMOTE_PORT
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lda udp_inp+1 ;src port (lo byte)
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sta (kipper_params),y
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iny
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lda udp_inp+0 ;src port (high byte)
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sta (kipper_params),y
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iny
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lda udp_inp+3 ;dest port (lo byte)
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sta (kipper_params),y
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iny
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lda udp_inp+2 ;dest port (high byte)
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sta (kipper_params),y
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iny
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sec
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lda udp_inp+5 ;payload length (lo byte)
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sbc #8 ;to remove length of header
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sta (kipper_params),y
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iny
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lda udp_inp+4 ;payload length (hi byte)
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sbc #0 ;in case there was a carry from the lo byte
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sta (kipper_params),y
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iny
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lda #<(udp_inp+8) ;payload ptr (lo byte)
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sta (kipper_params),y
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iny
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lda #>(udp_inp+8) ;payload ptr (hi byte)
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sta (kipper_params),y
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.import tcp_inbound_data_ptr
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.import tcp_inbound_data_length
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lda ip_inp+9 ;proto number
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cmp #6 ;TCP
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bne @not_tcp
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ldy #KPR_PAYLOAD_LENGTH
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lda tcp_inbound_data_length
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sta (kipper_params),y
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iny
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lda tcp_inbound_data_length+1
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sta (kipper_params),y
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ldy #KPR_PAYLOAD_POINTER
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lda tcp_inbound_data_ptr
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sta (kipper_params),y
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iny
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lda tcp_inbound_data_ptr+1
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sta (kipper_params),y
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@not_tcp:
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clc
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rts
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:
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cpy #KPR_SEND_UDP_PACKET
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bne :+
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ldy #3
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@copy_dest_ip:
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lda (kipper_params),y
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sta udp_send_dest,y
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dey
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bpl @copy_dest_ip
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ldy #KPR_REMOTE_PORT
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lda (kipper_params),y
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sta udp_send_dest_port
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iny
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lda (kipper_params),y
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sta udp_send_dest_port+1
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iny
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lda (kipper_params),y
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sta udp_send_src_port
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iny
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lda (kipper_params),y
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sta udp_send_src_port+1
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iny
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lda (kipper_params),y
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sta udp_send_len
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iny
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lda (kipper_params),y
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sta udp_send_len+1
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iny
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;AX should point at data to send
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lda (kipper_params),y
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pha
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iny
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lda (kipper_params),y
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tax
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pla
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jmp udp_send
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:
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cpy #KPR_UDP_REMOVE_LISTENER
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bne :+
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jmp udp_remove_listener
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:
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cpy #KPR_DEACTIVATE
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;nothing to do now we don't use IRQ
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bne :+
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clc
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rts
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:
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cpy #KPR_TFTP_SET_SERVER
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bne :+
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ldy #3
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@copy_tftp_server_ip:
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lda (kipper_params),y
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sta cfg_tftp_server,y
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dey
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bpl @copy_tftp_server_ip
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clc
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rts
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:
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cpy #KPR_TFTP_DOWNLOAD
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bne :+
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phax
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jsr set_tftp_params
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jsr tftp_download
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@after_tftp_call: ;write the current load address back to the param buffer (so if $0000 was passed in, the caller can find out the actual value used)
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plax
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bcs @tftp_error
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stax kipper_params
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ldy #KPR_TFTP_POINTER
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lda tftp_load_address
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sta (kipper_params),y
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iny
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lda tftp_load_address+1
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sta (kipper_params),y
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ldy #KPR_TFTP_FILESIZE
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lda tftp_filesize
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sta (kipper_params),y
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iny
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lda tftp_filesize+1
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sta (kipper_params),y
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clc
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@tftp_error:
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rts
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:
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cpy #KPR_TFTP_CALLBACK_DOWNLOAD
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bne :+
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phax
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jsr set_tftp_params
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jsr set_tftp_callback_vector
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jsr tftp_download
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jmp @after_tftp_call
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:
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cpy #KPR_TFTP_UPLOAD
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bne :+
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phax
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jsr set_tftp_params
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ldy #KPR_TFTP_POINTER
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lda (kipper_params),y
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sta tftp_filesize
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iny
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lda (kipper_params),y
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sta tftp_filesize+1
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jsr tftp_download
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jmp @after_tftp_call
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:
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cpy #KPR_TFTP_CALLBACK_UPLOAD
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bne :+
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jsr set_tftp_params
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jsr set_tftp_callback_vector
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jmp tftp_upload
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:
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cpy #KPR_PRINT_ASCIIZ
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bne :+
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jsr print
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clc
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rts
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:
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cpy #KPR_PRINT_HEX
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bne :+
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jsr print_hex
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clc
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rts
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:
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cpy #KPR_PRINT_DOTTED_QUAD
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bne :+
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jsr print_dotted_quad
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clc
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rts
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:
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cpy #KPR_PRINT_IP_CONFIG
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bne :+
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jsr print_ip_config
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clc
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rts
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:
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cpy #KPR_PRINT_INTEGER
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bne :+
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jsr print_integer
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clc
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rts
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:
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.segment "TCP_VARS"
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port_number: .res 2
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nonzero_octets: .res 1
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.code
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cpy #KPR_DOWNLOAD_RESOURCE
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bne :+
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.import url_download
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.import url_download_buffer
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.import url_download_buffer_length
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ldy #KPR_URL_DOWNLOAD_BUFFER
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lda (kipper_params),y
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sta url_download_buffer
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iny
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lda (kipper_params),y
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sta url_download_buffer+1
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ldy #KPR_URL_DOWNLOAD_BUFFER_LENGTH
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lda (kipper_params),y
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sta url_download_buffer_length
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iny
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lda (kipper_params),y
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sta url_download_buffer_length+1
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ldy #KPR_URL+1
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lda (kipper_params),y
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tax
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dey
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lda (kipper_params),y
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jmp url_download
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:
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cpy #KPR_FILE_LOAD
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bne :+
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.import io_device_no
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.import io_read_file
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.import io_filename
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.import io_filesize
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.import io_load_address
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phax
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ldy #KPR_FILE_ACCESS_FILENAME
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lda (kipper_params),y
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sta io_filename
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iny
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lda (kipper_params),y
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sta io_filename+1
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ldy #KPR_FILE_ACCESS_DEVICE
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lda (kipper_params),y
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sta io_device_no
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ldy #KPR_FILE_ACCESS_POINTER+1
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lda (kipper_params),y
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tax
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dey
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lda (kipper_params),y
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jsr io_read_file
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plax
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bcc @read_file_ok
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rts
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@read_file_ok:
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stax kipper_params
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ldy #KPR_FILE_ACCESS_POINTER
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lda io_load_address
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sta (kipper_params),y
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iny
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lda io_load_address+1
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sta (kipper_params),y
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ldy #KPR_FILE_ACCESS_FILESIZE
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lda io_filesize
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sta (kipper_params),y
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iny
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lda io_filesize+1
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sta (kipper_params),y
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rts
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:
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cpy #KPR_HTTPD_START
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bne :+
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.import httpd_start
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jmp httpd_start
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:
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cpy #KPR_HTTPD_GET_VAR_VALUE
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bne :+
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.import http_get_value
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jmp http_get_value
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:
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cpy #KPR_PING_HOST
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.import icmp_echo_ip
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.import icmp_ping
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bne :+
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ldy #3
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@copy_ping_ip_loop:
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lda (kipper_params),y
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sta icmp_echo_ip,y
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dey
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bpl @copy_ping_ip_loop
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jmp icmp_ping
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:
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cpy #KPR_TCP_CONNECT
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bne :+
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.import tcp_connect
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.import tcp_callback
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.import tcp_connect_ip
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.import tcp_listen
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ldy #3
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lda #0
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sta nonzero_octets
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@copy_dest_ip:
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lda (kipper_params),y
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beq @octet_was_zero
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inc nonzero_octets
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@octet_was_zero:
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sta tcp_connect_ip,y
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dey
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bpl @copy_dest_ip
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ldy #KPR_TCP_CALLBACK
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lda (kipper_params),y
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sta tcp_callback
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iny
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lda (kipper_params),y
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sta tcp_callback+1
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ldy #KPR_TCP_PORT+1
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lda (kipper_params),y
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tax
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dey
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lda (kipper_params),y
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ldy nonzero_octets
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bne @outbound_tcp_connection
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jmp tcp_listen
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@outbound_tcp_connection:
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jmp tcp_connect
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:
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.import tcp_send
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.import tcp_send_data_len
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cpy #KPR_SEND_TCP_PACKET
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bne :+
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ldy #KPR_TCP_PAYLOAD_LENGTH
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lda (kipper_params),y
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sta tcp_send_data_len
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iny
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lda (kipper_params),y
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sta tcp_send_data_len+1
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ldy #KPR_TCP_PAYLOAD_POINTER+1
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lda (kipper_params),y
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tax
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dey
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lda (kipper_params),y
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jmp tcp_send
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:
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.import tcp_close
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cpy #KPR_TCP_CLOSE_CONNECTION
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bne :+
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jmp tcp_close
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:
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.import filter_dns
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.import get_filtered_input
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.import filter_number
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cpy #KPR_INPUT_STRING
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bne :+
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ldy #40 ;max chars
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ldax #$0000
|
|
jmp get_filtered_input
|
|
:
|
|
|
|
cpy #KPR_INPUT_HOSTNAME
|
|
bne :+
|
|
ldy #40 ;max chars
|
|
ldax #filter_dns
|
|
jmp get_filtered_input
|
|
:
|
|
|
|
cpy #KPR_INPUT_PORT_NUMBER
|
|
bne :+
|
|
ldy #5 ;max chars
|
|
ldax #filter_number
|
|
jsr get_filtered_input
|
|
bcs @no_port_entered
|
|
|
|
;AX now points a string containing port number
|
|
.import parse_integer
|
|
jmp parse_integer
|
|
|
|
@no_port_entered:
|
|
rts
|
|
:
|
|
|
|
cpy #KPR_BLOCK_COPY
|
|
bne :+
|
|
;this is where we pay the price for trying to save a few 'zero page' pointers
|
|
;by reusing the 'copy_src' and 'copy_dest' addresses!
|
|
.segment "TCP_VARS"
|
|
tmp_copy_src: .res 2
|
|
tmp_copy_dest: .res 2
|
|
tmp_copy_length: .res 2
|
|
.code
|
|
|
|
ldy #KPR_BLOCK_SRC
|
|
lda (kipper_params),y
|
|
sta tmp_copy_src
|
|
iny
|
|
lda (kipper_params),y
|
|
sta tmp_copy_src+1
|
|
|
|
ldy #KPR_BLOCK_DEST
|
|
lda (kipper_params),y
|
|
sta tmp_copy_dest
|
|
iny
|
|
lda (kipper_params),y
|
|
sta tmp_copy_dest+1
|
|
|
|
ldy #KPR_BLOCK_SIZE
|
|
lda (kipper_params),y
|
|
sta tmp_copy_length
|
|
iny
|
|
lda (kipper_params),y
|
|
sta tmp_copy_length+1
|
|
|
|
ldax tmp_copy_src
|
|
stax copy_src
|
|
ldax tmp_copy_dest
|
|
stax copy_dest
|
|
ldax tmp_copy_length
|
|
jmp copymem
|
|
:
|
|
|
|
cpy #KPR_PARSER_INIT
|
|
bne :+
|
|
.import parser_init
|
|
jmp parser_init
|
|
:
|
|
|
|
cpy #KPR_PARSER_SKIP_NEXT
|
|
bne :+
|
|
.import parser_skip_next
|
|
jmp parser_skip_next
|
|
:
|
|
|
|
|
|
|
|
cpy #KPR_GET_LAST_ERROR
|
|
bne :+
|
|
lda ip65_error
|
|
clc
|
|
rts
|
|
:
|
|
|
|
|
|
;default function handler
|
|
lda #KPR_ERROR_FUNCTION_NOT_SUPPORTED
|
|
sta ip65_error
|
|
sec ;carry flag set = error
|
|
rts
|
|
|
|
|
|
;-- LICENSE FOR function_dispatcher.s --
|
|
; The contents of this file are subject to the Mozilla Public License
|
|
; Version 1.1 (the "License"); you may not use this file except in
|
|
; compliance with the License. You may obtain a copy of the License at
|
|
; http://www.mozilla.org/MPL/
|
|
;
|
|
; Software distributed under the License is distributed on an "AS IS"
|
|
; basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
|
|
; License for the specific language governing rights and limitations
|
|
; under the License.
|
|
;
|
|
; The Original Code is ip65.
|
|
;
|
|
; The Initial Developer of the Original Code is Jonno Downes,
|
|
; jonno@jamtronix.com.
|
|
; Portions created by the Initial Developer are Copyright (C) 2009
|
|
; Jonno Downes. All Rights Reserved.
|
|
; -- LICENSE END --
|
|
</pre></body></html> |