embox

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/**
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 * @file k210_gpio.c
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 * @brief
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 * @author sksat <sksat@sksat.net>
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 * @version 0.1
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 * @date 2020-08-15
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 */
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#include <assert.h>
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#include <util/log.h>
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#include <embox/unit.h>
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#include <lib/libds/bit.h>
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#include <lib/libds/array.h>
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#include <drivers/gpio/k210/fpioa.h>
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#include <drivers/clk/maix_bit_sysctl.h>
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#include <config/board_config.h>
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volatile fpioa_t* const fpioa = (volatile fpioa_t*) CONF_FPIOA_PORT_REGION_BASE;
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// EMBOX_UNIT_INIT(k210_fpioa_init);
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// // TODO: add sysctl driver
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// // central clock enable(sysctl: 0x28)
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// volatile sysctl_clock_enable_central* const clk_en_cent = (volatile sysctl_clock_enable_central*) CONF_SYSCTL_REGION_BASE + 0x28;
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// volatile sysctl_clock_enable_peripheral* const clk_en_peri = (volatile sysctl_clock_enable_peripheral*) CONF_SYSCTL_REGION_BASE + 0x2c;
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// static int k210_fpioa_init(void){
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// 	// enable bus clock
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// 	clk_en_cent->apb0 = 1;
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// 	// enable device clock
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// 	clk_en_peri->fpioa = 1;
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// 	return 0;
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// }
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void k210_fpioa_set_func_impl(uint8_t num, k210_fpioa_func_t func){
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	// TODO: other func
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	assert(FN_GPIO0 <= func && func <= FN_GPIO7);
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	if(FN_GPIO0 <= func && func <= FN_GPIO7){
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		fpioa->io[num] = (const k210_fpioa_io_cfg_t){
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			.channel = func,
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			.div = 0xf,
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			.out_enable = 1,
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			.out_inv = 0,
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			.data_out = 0,
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			.data_inv = 0,
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			.pullup = 0,
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			.pulldown = 1,		// pull down
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			.reserved = 0,
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			.slew = 0,
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			.in_enable = 1,
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			.in_inv = 0,
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			.data_in_inv = 0,
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			.sch_trigger = 1,
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			.reserved1 = 0,
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			.pad_di = 0,
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		};
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	}
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}
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void k210_fpioa_set_func(uint8_t num, k210_fpioa_func_t func){
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	assert(num <= CONF_FPIOA_PORT_WIDTH);
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	assert(0 <= func && func < FN_MAX);
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	if(func == FN_RESERVED0){
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		k210_fpioa_set_func_impl(num, FN_RESERVED0);
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		return;
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	}
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	for(int i=0;i<CONF_FPIOA_PORT_WIDTH;i++){
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		if((fpioa->io[i].channel == func) && (i != num)){
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			k210_fpioa_set_func_impl(num, FN_RESERVED0);
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		}
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	}
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	k210_fpioa_set_func_impl(num, func);
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}
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void k210_fpioa_set_pull(uint8_t num, k210_fpioa_pull_t pull){
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	// TODO
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}
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