qmk-firmware/lib/python/qmk/xap/gen_firmware/inline_generator.py
2022-04-01 00:44:27 +01:00

283 lines
9.7 KiB
Python
Executable file

"""This script generates the XAP protocol generated header to be compiled into QMK.
"""
from qmk.casing import to_snake
from qmk.commands import dump_lines
from qmk.constants import GPL2_HEADER_C_LIKE, GENERATED_HEADER_C_LIKE
from qmk.xap.common import latest_xap_defs, route_conditions
def _get_c_type(xap_type):
if xap_type == 'bool':
return 'bool'
elif xap_type == 'u8':
return 'uint8_t'
elif xap_type == 'u16':
return 'uint16_t'
elif xap_type == 'u32':
return 'uint32_t'
elif xap_type == 'u64':
return 'uint64_t'
elif xap_type == 'struct':
return 'struct'
elif xap_type == 'string':
return 'const char *'
return 'unknown'
def _get_c_size(xap_type):
if xap_type == 'u8':
return 'sizeof(uint8_t)'
elif xap_type == 'u16':
return 'sizeof(uint16_t)'
elif xap_type == 'u32':
return 'sizeof(uint32_t)'
elif xap_type == 'u64':
return 8
elif xap_type == 'u8[32]':
return 32
return 0
def _get_route_type(container):
if 'routes' in container:
return 'XAP_ROUTE'
elif 'return_execute' in container:
return 'XAP_EXECUTE'
elif 'return_value' in container:
if container['return_type'] == 'u8':
return 'XAP_VALUE'
elif 'return_constant' in container:
if container['return_type'] == 'u32':
return 'XAP_CONST_MEM'
elif container['return_type'] == 'struct':
return 'XAP_CONST_MEM'
elif container['return_type'] == 'string':
return 'XAP_CONST_MEM'
elif 'return_getter' in container:
if container['return_type'] == 'u32':
return 'XAP_GETTER'
return 'UNSUPPORTED'
def _append_routing_table_declaration(lines, container, container_id, route_stack):
route_stack.append(container)
route_name = to_snake('_'.join([r['define'] for r in route_stack]))
if 'routes' in container:
pass
elif 'return_execute' in container:
execute = container['return_execute']
request_type = container.get('request_type', None)
return_type = container['return_type']
lines.append(
f'''
bool xap_respond_{execute}(xap_token_t token, const uint8_t *data, size_t data_len) {{
if (data_len != {_get_c_size(request_type)}) {{
xap_respond_failure(token, 0);
return false;
}}
uint8_t ret[{_get_c_size(return_type)}] = {{0}};
'''
)
if not request_type:
lines.append(f'''
bool {execute}(uint8_t *ret, uint8_t ret_len);
if(!{execute}(ret, sizeof(ret))) {{
xap_respond_failure(token, 0);
return false;
}}
''')
else:
lines.append(
f'''
{_get_c_type(request_type)} *argp = ({_get_c_type(request_type)} *)&data[0];
bool {execute}({_get_c_type(request_type)} arg, uint8_t *ret, uint8_t ret_len);
if(!{execute}(*argp, ret, sizeof(ret))) {{
xap_respond_failure(token, 0);
return false;
}}
'''
)
lines.append('''
return xap_respond_data(token, ret, sizeof(ret));
}''')
# elif 'return_value' in container:
# value = container['return_value']
# return_type = container['return_type']
# lines.append('')
# lines.append(f'{_get_c_type(return_type)} {value} = 0;')
elif 'return_constant' in container:
if container['return_type'] == 'u32':
constant = container['return_constant']
lines.append('')
lines.append(f'static const uint32_t {route_name}_data PROGMEM = {constant};')
elif container['return_type'] == 'struct':
lines.append('')
lines.append(f'static const struct {route_name}_t {{')
for member in container['return_struct_members']:
member_type = _get_c_type(member['type'])
member_name = to_snake(member['name'])
lines.append(f' const {member_type} {member_name};')
lines.append(f'}} {route_name}_data PROGMEM = {{')
for constant in container['return_constant']:
lines.append(f' {constant},')
lines.append('};')
elif container['return_type'] == 'string':
constant = container['return_constant']
lines.append('')
lines.append(f'static const char {route_name}_str[] PROGMEM = {constant};')
elif 'return_getter' in container:
if container['return_type'] == 'u32':
lines.append('')
lines.append(f'extern uint32_t {route_name}_getter(void);')
elif container['return_type'] == 'struct':
pass
route_stack.pop()
def _append_routing_table_entry_flags(lines, container, container_id, route_stack):
is_secure = 1 if ('secure' in container and container['secure'] is True) else 0
lines.append(' .flags = {')
lines.append(f' .type = {_get_route_type(container)},')
lines.append(f' .is_secure = {is_secure},')
lines.append(' },')
def _append_routing_table_entry_route(lines, container, container_id, route_stack):
route_name = to_snake('_'.join([r['define'] for r in route_stack]))
lines.append(f' .child_routes = {route_name}_table,')
lines.append(f' .child_routes_len = sizeof({route_name}_table)/sizeof(xap_route_t),')
def _append_routing_table_entry_execute(lines, container, container_id, route_stack):
value = container['return_execute']
lines.append(f' .handler = xap_respond_{value},')
def _append_routing_table_entry_value(lines, container, container_id, route_stack):
value = container['return_value']
lines.append(f' .const_data = &{value},')
lines.append(f' .const_data_len = sizeof({value}),')
def _append_routing_table_entry_u32getter(lines, container, container_id, route_stack):
route_name = to_snake('_'.join([r['define'] for r in route_stack]))
lines.append(f' .u32getter = &{route_name}_getter,')
def _append_routing_table_entry_const_data(lines, container, container_id, route_stack):
route_name = to_snake('_'.join([r['define'] for r in route_stack]))
lines.append(f' .const_data = &{route_name}_data,')
lines.append(f' .const_data_len = sizeof({route_name}_data),')
def _append_routing_table_entry_string(lines, container, container_id, route_stack):
route_name = to_snake('_'.join([r['define'] for r in route_stack]))
lines.append(f' .const_data = {route_name}_str,')
lines.append(f' .const_data_len = sizeof({route_name}_str) - 1,')
def _append_routing_table_entry(lines, container, container_id, route_stack):
route_stack.append(container)
route_name = '_'.join([r['define'] for r in route_stack])
condition = route_conditions(route_stack)
if condition:
lines.append(f'#if {condition}')
lines.append(f' [{route_name}] = {{')
_append_routing_table_entry_flags(lines, container, container_id, route_stack)
if 'routes' in container:
_append_routing_table_entry_route(lines, container, container_id, route_stack)
elif 'return_execute' in container:
_append_routing_table_entry_execute(lines, container, container_id, route_stack)
elif 'return_value' in container:
_append_routing_table_entry_value(lines, container, container_id, route_stack)
elif 'return_constant' in container:
if container['return_type'] == 'u32':
_append_routing_table_entry_const_data(lines, container, container_id, route_stack)
elif container['return_type'] == 'struct':
_append_routing_table_entry_const_data(lines, container, container_id, route_stack)
elif container['return_type'] == 'string':
_append_routing_table_entry_string(lines, container, container_id, route_stack)
elif 'return_getter' in container:
if container['return_type'] == 'u32':
_append_routing_table_entry_u32getter(lines, container, container_id, route_stack)
lines.append(' },')
if condition:
lines.append(f'#endif // {condition}')
route_stack.pop()
def _append_routing_tables(lines, container, container_id=None, route_stack=None):
"""Handles building the list of the XAP routes, combining parent and child names together, as well as the route number.
"""
if route_stack is None:
route_stack = [container]
else:
route_stack.append(container)
route_name = to_snake('_'.join([r['define'] for r in route_stack]))
condition = route_conditions(route_stack)
if 'routes' in container:
for route_id in container['routes']:
route = container['routes'][route_id]
_append_routing_tables(lines, route, route_id, route_stack)
for route_id in container['routes']:
route = container['routes'][route_id]
_append_routing_table_declaration(lines, route, route_id, route_stack)
lines.append('')
if condition:
lines.append(f'#if {condition}')
lines.append(f'static const xap_route_t {route_name}_table[] PROGMEM = {{')
for route_id in container['routes']:
route = container['routes'][route_id]
_append_routing_table_entry(lines, route, route_id, route_stack)
lines.append('};')
if condition:
lines.append(f'#endif // {condition}')
lines.append('')
route_stack.pop()
def generate_inline(output_file):
"""Generates the XAP protocol header file, generated during normal build.
"""
xap_defs = latest_xap_defs()
# Preamble
lines = [GPL2_HEADER_C_LIKE, GENERATED_HEADER_C_LIKE, '']
# Add all the generated code
_append_routing_tables(lines, xap_defs)
dump_lines(output_file, lines)