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stm32l4: rcc: Add core functions

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Based on STM32L1, and rather a lot of duplication unfortunately.
This commit is contained in:
Karl Palsson
2016-03-07 01:06:10 +00:00
parent b69916837e
commit 97d644c4d3
3 changed files with 386 additions and 4 deletions
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29
include/libopencm3/stm32/l4/rcc.h
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@@ -39,7 +39,6 @@
#ifndef LIBOPENCM3_RCC_H
#define LIBOPENCM3_RCC_H
/* --- RCC registers ------------------------------------------------------- */
#define RCC_CR MMIO32(RCC_BASE + 0x00)
@@ -680,9 +679,12 @@ Twelve frequency ranges are available: 100 kHz, 200 kHz, 400 kHz, 800 kHz,
#define RCC_CSR_LSIRDY (1 << 1)
#define RCC_CSR_LSION (1 << 0)
/* --- Variable definitions ------------------------------------------------ */
extern uint32_t rcc_ahb_frequency;
extern uint32_t rcc_apb1_frequency;
extern uint32_t rcc_apb2_frequency;
/* --- Function prototypes ------------------------------------------------- */
enum rcc_osc {
@@ -906,7 +908,28 @@ enum rcc_periph_rst {
BEGIN_DECLS
/* TODO */
void rcc_osc_ready_int_clear(enum rcc_osc osc);
void rcc_osc_ready_int_enable(enum rcc_osc osc);
void rcc_osc_ready_int_disable(enum rcc_osc osc);
int rcc_osc_ready_int_flag(enum rcc_osc osc);
void rcc_css_int_clear(void);
int rcc_css_int_flag(void);
bool rcc_is_osc_ready(enum rcc_osc osc);
void rcc_wait_for_osc_ready(enum rcc_osc osc);
void rcc_wait_for_sysclk_status(enum rcc_osc osc);
void rcc_osc_on(enum rcc_osc osc);
void rcc_osc_off(enum rcc_osc osc);
void rcc_css_enable(void);
void rcc_css_disable(void);
void rcc_osc_bypass_enable(enum rcc_osc osc);
void rcc_osc_bypass_disable(enum rcc_osc osc);
void rcc_set_sysclk_source(uint32_t clk);
void rcc_set_pll_source(uint32_t pllsrc);
void rcc_set_ppre2(uint32_t ppre2);
void rcc_set_ppre1(uint32_t ppre1);
void rcc_set_hpre(uint32_t hpre);
void rcc_set_main_pll(uint32_t source, uint32_t pllm, uint32_t plln, uint32_t pllp, uint32_t pllq, uint32_t pllr);
uint32_t rcc_system_clock_source(void);
END_DECLS