1 /* 2 * CPM (clock and power management) support for the X1600. 3 * 4 * Copyright (C) 2017, 2018, 2020, 2021, 2023, 5 * 2024 Paul Boddie <paul@boddie.org.uk> 6 * 7 * This program is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU General Public License as 9 * published by the Free Software Foundation; either version 2 of 10 * the License, or (at your option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, 20 * Boston, MA 02110-1301, USA 21 */ 22 23 #pragma once 24 25 #include <l4/devices/clocks.h> 26 #include <l4/sys/types.h> 27 #include <stdint.h> 28 29 30 31 /* X1600-specific clocks. */ 32 33 enum Clock_x1600_identifiers 34 { 35 Clock_x1600_identifier_base = Clock_specific_start, 36 Clock_usb_phy_12MHz = Clock_specific_start, 37 Clock_x1600_identifier_count, /* not a clock: limit for array definition */ 38 }; 39 40 41 42 #ifdef __cplusplus 43 44 #include <l4/devices/cpm-generic.h> 45 46 class Cpm_x1600_chip : public Cpm_chip 47 { 48 public: 49 explicit Cpm_x1600_chip(l4_addr_t addr); 50 }; 51 52 Cpm_chip *x1600_cpm_chip(l4_addr_t cpm_base); 53 54 #endif /* __cplusplus */ 55 56 57 58 /* C language interface. */ 59 60 EXTERN_C_BEGIN 61 62 void *x1600_cpm_init(l4_addr_t cpm_base); 63 64 const char *x1600_cpm_clock_type(void *cpm, enum Clock_identifiers clock); 65 66 int x1600_cpm_have_clock(void *cpm, enum Clock_identifiers clock); 67 void x1600_cpm_start_clock(void *cpm, enum Clock_identifiers clock); 68 void x1600_cpm_stop_clock(void *cpm, enum Clock_identifiers clock); 69 70 int x1600_cpm_get_parameters(void *cpm, enum Clock_identifiers clock, 71 uint32_t parameters[]); 72 int x1600_cpm_set_parameters(void *cpm, enum Clock_identifiers clock, 73 int num_parameters, uint32_t parameters[]); 74 75 uint8_t x1600_cpm_get_source(void *cpm, enum Clock_identifiers clock); 76 void x1600_cpm_set_source(void *cpm, enum Clock_identifiers clock, uint8_t source); 77 enum Clock_identifiers x1600_cpm_get_source_clock(void *cpm, enum Clock_identifiers clock); 78 void x1600_cpm_set_source_clock(void *cpm, enum Clock_identifiers clock, enum Clock_identifiers source); 79 80 uint64_t x1600_cpm_get_source_frequency(void *cpm, enum Clock_identifiers clock); 81 82 uint64_t x1600_cpm_get_frequency(void *cpm, enum Clock_identifiers clock); 83 int x1600_cpm_set_frequency(void *cpm, enum Clock_identifiers clock, uint64_t frequency); 84 85 EXTERN_C_END