1 /* $Id: at91busvar.h,v 1.8 2023/04/21 15:00:48 skrll Exp $ */ 2 /* $NetBSD: at91busvar.h,v 1.8 2023/04/21 15:00:48 skrll Exp $ */ 3 4 /* 5 * Copyright (c) 2007 Embedtronics Oy 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY ICHIRO FUKUHARA ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL ICHIRO FUKUHARA OR THE VOICES IN HIS HEAD BE LIABLE FOR 21 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #ifndef _AT91BUSVAR_H_ 31 #define _AT91BUSVAR_H_ 32 33 #include <sys/conf.h> 34 #include <sys/device.h> 35 #include <sys/queue.h> 36 37 #include <sys/bus.h> 38 #include <arm/at91/at91piovar.h> 39 40 41 /* clocks: */ 42 struct at91bus_clocks { 43 uint32_t slow; /* slow clock in Hz */ 44 uint32_t main; /* main clock in Hz */ 45 uint32_t cpu; /* processor clock in Hz */ 46 uint32_t master; /* master clock in Hz */ 47 uint32_t plla; /* PLLA clock */ 48 uint32_t pllb; /* PLLB clock */ 49 }; 50 51 extern struct at91bus_clocks at91bus_clocks; 52 53 #define AT91_SCLK at91bus_clocks.slow 54 #define AT91_MCLK at91bus_clocks.main 55 #define AT91_PCLK at91bus_clocks.cpu 56 #define AT91_MSTCLK at91bus_clocks.master 57 #define AT91_PLLACLK at91bus_clocks.plla 58 #define AT91_PLLBCLK at91bus_clocks.pllb 59 60 61 /* at91bus attach arguments: */ 62 struct at91bus_attach_args { 63 bus_space_tag_t sa_iot; /* bus tag */ 64 bus_dma_tag_t sa_dmat; /* DMA tag */ 65 bus_addr_t sa_addr; /* I/O base address */ 66 bus_size_t sa_size; /* I/O space size */ 67 int sa_pid; /* peripheral ID */ 68 }; 69 70 71 struct at91bus_softc { 72 device_t sc_dev; 73 bus_space_tag_t sc_iot; 74 bus_space_handle_t sc_ioh; 75 bus_dma_tag_t sc_dmat; 76 }; 77 78 struct trapframe; 79 80 struct at91bus_machdep { 81 /* initialization: */ 82 void (*init)(struct at91bus_clocks *); 83 void (*attach_cn)(bus_space_tag_t, int speed, int flags); 84 const struct pmap_devmap *(*devmap)(void); 85 86 /* clocking support: */ 87 void (*peripheral_clock)(int pid, int enable); 88 89 /* PIO support: */ 90 at91pio_port (*pio_port)(int pid); 91 uint32_t (*gpio_mask)(int pid); 92 93 /* interrupt handling support: */ 94 void (*intr_init)(void); 95 void *(*intr_establish)(int pid, int ipl, int type, int (*ih_func)(void *), void *arg); 96 void (*intr_disestablish)(void *cookie); 97 void (*intr_poll)(void *cookie, int flags); 98 void (*intr_dispatch)(struct trapframe *); 99 100 /* configuration */ 101 const char *(*peripheral_name)(int pid); 102 void (*search_peripherals)(device_t self, 103 device_t (*found_func)(device_t, bus_addr_t, int pid)); 104 }; 105 typedef const struct at91bus_machdep * at91bus_tag_t; 106 107 #ifdef AT91RM9200 108 extern const struct at91bus_machdep at91rm9200bus; 109 #endif 110 111 extern uint32_t at91_chip_id; 112 #define AT91_CHIP_ID() at91_chip_id 113 extern at91bus_tag_t at91bus_tag; 114 extern struct bus_space at91_bs_tag; 115 extern struct arm32_bus_dma_tag at91_bd_tag; 116 117 118 extern int at91bus_init(void); 119 struct _BootConfig; 120 extern vaddr_t at91bus_setup(struct _BootConfig *); 121 extern bus_dma_tag_t at91_bus_dma_init(struct arm32_bus_dma_tag *); 122 123 static __inline const struct pmap_devmap * 124 at91_devmap(void) 125 { 126 return (*at91bus_tag->devmap)(); 127 } 128 129 static __inline void 130 at91_peripheral_clock(int pid, int enable) 131 { 132 return (*at91bus_tag->peripheral_clock)(pid, enable); 133 } 134 135 static __inline const char * 136 at91_peripheral_name(int pid) 137 { 138 return (*at91bus_tag->peripheral_name)(pid); 139 } 140 141 static __inline at91pio_port 142 at91_pio_port(int pid) 143 { 144 return (*at91bus_tag->pio_port)(pid); 145 } 146 147 static __inline uint32_t 148 at91_gpio_mask(int pid) 149 { 150 return (*at91bus_tag->gpio_mask)(pid); 151 } 152 153 static __inline void 154 at91_intr_init(void) 155 { 156 return (*at91bus_tag->intr_init)(); 157 } 158 159 static __inline void * 160 at91_intr_establish(int pid, int ipl, int type, 161 int (*ih_func)(void *), void *ih_arg) 162 { 163 return (*at91bus_tag->intr_establish)(pid, ipl, type, ih_func, ih_arg); 164 } 165 166 static __inline void 167 at91_intr_disestablish(void *cookie) 168 { 169 return (*at91bus_tag->intr_disestablish)(cookie); 170 } 171 172 static __inline void 173 at91_intr_poll(void *cookie, int flags) 174 { 175 return (*at91bus_tag->intr_poll)(cookie, flags); 176 } 177 178 static __inline void 179 at91_search_peripherals(device_t self, 180 device_t (*found_func)(device_t, bus_addr_t, int pid)) 181 { 182 return (*at91bus_tag->search_peripherals)(self, found_func); 183 } 184 185 186 #endif /* _AT91BUSVAR_H_ */ 187
Indexes created Sat Sep 20 22:09:52 GMT 2025