Alexey Ryabov
5593d344cd
This commit adds a new serial port driver that allows other drivers to add or remove ports dynamically and allows applications to use a single serial ports API. It also modifies the usbftdi driver to support the new serial ports API. The driver may conflict with kernel if it is compiled with debug_com_base. Topic on forum https://board.kolibrios.org/viewtopic.php?p=78764 Reviewed-on: #94 Reviewed-by: Gleb Zaharov <sweetbread@coders-squad.com> Reviewed-by: Mikhail Frolov <mixa.frolov2003@gmail.com> Co-authored-by: Alexey Ryabov <alex@b00bl1k.ru> Co-committed-by: Alexey Ryabov <alex@b00bl1k.ru>
273 lines
7.0 KiB
PHP
Executable File
273 lines
7.0 KiB
PHP
Executable File
SERIAL_API_GET_VERSION = 0
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SERIAL_API_SRV_ADD_PORT = 1
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SERIAL_API_SRV_REMOVE_PORT = 2
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SERIAL_API_SRV_HANDLE_EVENT = 3
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SERIAL_API_OPEN_PORT = 4
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SERIAL_API_CLOSE_PORT = 5
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SERIAL_API_SETUP_PORT = 6
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SERIAL_API_READ = 7
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SERIAL_API_WRITE = 8
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SERIAL_API_ERR_PORT_INVALID = 1
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SERIAL_API_ERR_PORT_BUSY = 2
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SERIAL_API_ERR_CONF = 3
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SERIAL_EVT_TXE = 1 ; tx fifo or register is empty, all data has been sent
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SERIAL_EVT_RXNE = 2 ; rx fifo or register is not empty
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SERIAL_CONF_PARITY_NONE = 0
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SERIAL_CONF_PARITY_EVEN = 1
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SERIAL_CONF_PARITY_ODD = 2
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SERIAL_CONF_PARITY_MARK = 3
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SERIAL_CONF_PARITY_SPACE = 4
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SERIAL_CONF_FLOW_CTRL_NONE = 0
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struct SP_DRIVER
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size dd ? ; size of this struct
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startup dd ? ; void __stdcall (*startup)(void *drv_data, const struct serial_conf *conf);
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shutdown dd ? ; void __stdcall (*shutdown)(void *drv_data);
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reconf dd ? ; void __stdcall (*reconf)(void *drv_data, const struct serial_conf *conf);
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tx dd ? ; void __stdcall (*tx)(void *drv_data);
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ends
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struct SP_CONF
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size dd ? ; size of this struct
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baudrate dd ?
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word_size db ?
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stop_bits db ?
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parity db ?
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flow_ctrl db ?
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ends
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proc serial_add_port stdcall, drv:dword, drv_data:dword
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locals
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handler dd ?
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io_code dd ?
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input dd ?
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inp_size dd ?
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output dd ?
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out_size dd ?
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endl
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mov eax, [serial_drv_entry]
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mov [handler], eax
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mov [io_code], SERIAL_API_SRV_ADD_PORT
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lea eax, [drv]
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mov [input], eax
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mov [inp_size], 8
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xor eax, eax
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mov [output], eax
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mov [out_size], eax
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lea eax, [handler]
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push esi edi
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invoke ServiceHandler, eax
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pop edi esi
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ret
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endp
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proc serial_remove_port stdcall, port:dword
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locals
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handler dd ?
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io_code dd ?
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input dd ?
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inp_size dd ?
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output dd ?
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out_size dd ?
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endl
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mov eax, [serial_drv_entry]
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mov [handler], eax
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mov [io_code], SERIAL_API_SRV_REMOVE_PORT
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lea eax, [port]
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mov [input], eax
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mov [inp_size], 4
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xor eax, eax
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mov [output], eax
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mov [out_size], eax
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lea eax, [handler]
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push esi edi
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invoke ServiceHandler, eax
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pop edi esi
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ret
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endp
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; see SERIAL_EVT_*
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proc serial_handle_event stdcall, port:dword, event:dword, count:dword, buff:dword
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locals
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handler dd ?
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io_code dd ?
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input dd ?
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inp_size dd ?
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output dd ?
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out_size dd ?
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endl
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mov eax, [serial_drv_entry]
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mov [handler], eax
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mov [io_code], SERIAL_API_SRV_HANDLE_EVENT
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lea eax, [port]
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mov [input], eax
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mov [inp_size], 16
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xor eax, eax
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mov [output], eax
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mov [out_size], eax
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lea eax, [handler]
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push esi edi
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invoke ServiceHandler, eax
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pop edi esi
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ret
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endp
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proc serial_port_init
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lea ecx, [serial_drv_name]
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mcall SF_SYS_MISC, SSF_LOAD_DRIVER
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mov [serial_drv_handle], eax
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ret
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endp
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proc serial_port_open stdcall uses ebx, port_id:dword, conf:dword, handle:dword
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locals
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.handler dd ?
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.io_code dd ?
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.input dd ?
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.inp_size dd ?
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.output dd ?
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.out_size dd ?
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endl
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push [conf]
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push [port_id]
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mov eax, [serial_drv_handle]
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mov [.handler], eax
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mov dword [.io_code], SERIAL_API_OPEN_PORT
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mov [.input], esp
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mov dword [.inp_size], 8
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mov eax, [handle]
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mov [.output], eax
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mov dword [.out_size], 4
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lea ecx, [.handler]
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mcall SF_SYS_MISC, SSF_CONTROL_DRIVER
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add esp, 8
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ret
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endp
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proc serial_port_close stdcall uses ebx, handle:dword
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locals
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.handler dd ?
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.io_code dd ?
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.input dd ?
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.inp_size dd ?
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.output dd ?
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.out_size dd ?
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endl
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push [handle]
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mov eax, [serial_drv_handle]
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mov [.handler], eax
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mov dword [.io_code], SERIAL_API_CLOSE_PORT
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mov [.input], esp
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mov dword [.inp_size], 4
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mov dword [.output], 0
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mov dword [.out_size], 0
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lea ecx, [.handler]
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mcall SF_SYS_MISC, SSF_CONTROL_DRIVER
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add esp, 4
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ret
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endp
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proc serial_port_setup stdcall uses ebx, handle:dword, conf:dword
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locals
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.handler dd ?
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.io_code dd ?
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.input dd ?
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.inp_size dd ?
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.output dd ?
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.out_size dd ?
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endl
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push [conf]
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push [handle]
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mov eax, [serial_drv_handle]
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mov [.handler], eax
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mov dword [.io_code], SERIAL_API_SETUP_PORT
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mov [.input], esp
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mov dword [.inp_size], 8
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sub esp, 4
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mov [.output], esp
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mov dword [.out_size], 4
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lea ecx, [.handler]
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mcall SF_SYS_MISC, SSF_CONTROL_DRIVER
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pop eax
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add esp, 8
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ret
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endp
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proc serial_port_read stdcall uses ebx, handle:dword, dest:dword, count_ptr:dword
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locals
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.handler dd ?
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.io_code dd ?
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.input dd ?
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.inp_size dd ?
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.output dd ?
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.out_size dd ?
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endl
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mov eax, [count_ptr]
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push dword [eax]
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push [dest]
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push [handle]
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mov eax, [serial_drv_handle]
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mov [.handler], eax
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mov dword [.io_code], SERIAL_API_READ
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mov [.input], esp
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mov dword [.inp_size], 12
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sub esp, 4
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mov [.output], esp
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mov [.out_size], 4
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lea ecx, [.handler]
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mcall SF_SYS_MISC, SSF_CONTROL_DRIVER
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pop ecx
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mov edx, [count_ptr]
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mov [edx], ecx
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add esp, 12
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ret
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endp
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proc serial_port_write stdcall uses ebx, handle:dword, src:dword, count_ptr:dword
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locals
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.handler dd ?
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.io_code dd ?
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.input dd ?
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.inp_size dd ?
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.output dd ?
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.out_size dd ?
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endl
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mov eax, [count_ptr]
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push dword [eax]
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push [src]
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push [handle]
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mov eax, [serial_drv_handle]
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mov [.handler], eax
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mov dword [.io_code], SERIAL_API_WRITE
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mov [.input], esp
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mov dword [.inp_size], 12
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sub esp, 4
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mov dword [.output], esp
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mov dword [.out_size], 4
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lea ecx, [.handler]
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mcall SF_SYS_MISC, SSF_CONTROL_DRIVER
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pop ecx
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mov edx, [count_ptr]
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mov [edx], ecx
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add esp, 12
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ret
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endp
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align 4
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serial_drv_name db "SERIAL", 0
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serial_drv_handle dd ?
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