Mark A. Greer | b2c5f61 | 2006-09-19 14:05:08 +1000 | [diff] [blame] | 1 | /* |
| 2 | * Global definition of all the bootwrapper operations. |
| 3 | * |
| 4 | * Author: Mark A. Greer <mgreer@mvista.com> |
| 5 | * |
| 6 | * 2006 (c) MontaVista Software, Inc. This file is licensed under |
| 7 | * the terms of the GNU General Public License version 2. This program |
| 8 | * is licensed "as is" without any warranty of any kind, whether express |
| 9 | * or implied. |
| 10 | */ |
| 11 | #ifndef _PPC_BOOT_OPS_H_ |
| 12 | #define _PPC_BOOT_OPS_H_ |
| 13 | |
Scott Wood | ce3edb3 | 2007-03-12 14:41:38 -0600 | [diff] [blame] | 14 | #include <stddef.h> |
Mark A. Greer | b2c5f61 | 2006-09-19 14:05:08 +1000 | [diff] [blame] | 15 | #include "types.h" |
Scott Wood | a07940b | 2007-03-16 12:27:54 -0500 | [diff] [blame^] | 16 | #include "string.h" |
Mark A. Greer | b2c5f61 | 2006-09-19 14:05:08 +1000 | [diff] [blame] | 17 | |
| 18 | #define COMMAND_LINE_SIZE 512 |
| 19 | #define MAX_PATH_LEN 256 |
| 20 | #define MAX_PROP_LEN 256 /* What should this be? */ |
| 21 | |
| 22 | /* Platform specific operations */ |
| 23 | struct platform_ops { |
| 24 | void (*fixups)(void); |
| 25 | void (*image_hdr)(const void *); |
| 26 | void * (*malloc)(u32 size); |
Mark A. Greer | c888554 | 2006-10-16 13:49:27 -0700 | [diff] [blame] | 27 | void (*free)(void *ptr); |
| 28 | void * (*realloc)(void *ptr, unsigned long size); |
Mark A. Greer | b2c5f61 | 2006-09-19 14:05:08 +1000 | [diff] [blame] | 29 | void (*exit)(void); |
David Gibson | 79c8541 | 2007-03-05 14:24:52 +1100 | [diff] [blame] | 30 | void * (*vmlinux_alloc)(unsigned long size); |
Mark A. Greer | b2c5f61 | 2006-09-19 14:05:08 +1000 | [diff] [blame] | 31 | }; |
| 32 | extern struct platform_ops platform_ops; |
| 33 | |
| 34 | /* Device Tree operations */ |
| 35 | struct dt_ops { |
| 36 | void * (*finddevice)(const char *name); |
Mark A. Greer | c888554 | 2006-10-16 13:49:27 -0700 | [diff] [blame] | 37 | int (*getprop)(const void *phandle, const char *name, void *buf, |
Mark A. Greer | b2c5f61 | 2006-09-19 14:05:08 +1000 | [diff] [blame] | 38 | const int buflen); |
Mark A. Greer | c888554 | 2006-10-16 13:49:27 -0700 | [diff] [blame] | 39 | int (*setprop)(const void *phandle, const char *name, |
Mark A. Greer | b2c5f61 | 2006-09-19 14:05:08 +1000 | [diff] [blame] | 40 | const void *buf, const int buflen); |
Scott Wood | a07940b | 2007-03-16 12:27:54 -0500 | [diff] [blame^] | 41 | void *(*get_parent)(const void *phandle); |
| 42 | /* The node must not already exist. */ |
| 43 | void *(*create_node)(const void *parent, const char *name); |
| 44 | void *(*find_node_by_prop_value)(const void *prev, |
| 45 | const char *propname, |
| 46 | const char *propval, int proplen); |
David Gibson | 35af89e | 2006-11-21 11:37:37 +1100 | [diff] [blame] | 47 | unsigned long (*finalize)(void); |
Mark A. Greer | b2c5f61 | 2006-09-19 14:05:08 +1000 | [diff] [blame] | 48 | }; |
| 49 | extern struct dt_ops dt_ops; |
| 50 | |
| 51 | /* Console operations */ |
| 52 | struct console_ops { |
| 53 | int (*open)(void); |
| 54 | void (*write)(char *buf, int len); |
| 55 | void (*edit_cmdline)(char *buf, int len); |
| 56 | void (*close)(void); |
| 57 | void *data; |
| 58 | }; |
| 59 | extern struct console_ops console_ops; |
| 60 | |
| 61 | /* Serial console operations */ |
| 62 | struct serial_console_data { |
| 63 | int (*open)(void); |
| 64 | void (*putc)(unsigned char c); |
| 65 | unsigned char (*getc)(void); |
| 66 | u8 (*tstc)(void); |
| 67 | void (*close)(void); |
| 68 | }; |
| 69 | |
David Gibson | cd197ff | 2007-03-05 14:24:52 +1100 | [diff] [blame] | 70 | struct loader_info { |
| 71 | void *promptr; |
| 72 | unsigned long initrd_addr, initrd_size; |
| 73 | }; |
| 74 | extern struct loader_info loader_info; |
| 75 | |
| 76 | void start(void *sp); |
Mark A. Greer | c888554 | 2006-10-16 13:49:27 -0700 | [diff] [blame] | 77 | int ft_init(void *dt_blob, unsigned int max_size, unsigned int max_find_device); |
| 78 | int serial_console_init(void); |
| 79 | int ns16550_console_init(void *devp, struct serial_console_data *scdp); |
| 80 | void *simple_alloc_init(char *base, u32 heap_size, u32 granularity, |
| 81 | u32 max_allocs); |
| 82 | |
Mark A. Greer | b2c5f61 | 2006-09-19 14:05:08 +1000 | [diff] [blame] | 83 | |
| 84 | static inline void *finddevice(const char *name) |
| 85 | { |
| 86 | return (dt_ops.finddevice) ? dt_ops.finddevice(name) : NULL; |
| 87 | } |
| 88 | |
| 89 | static inline int getprop(void *devp, const char *name, void *buf, int buflen) |
| 90 | { |
| 91 | return (dt_ops.getprop) ? dt_ops.getprop(devp, name, buf, buflen) : -1; |
| 92 | } |
| 93 | |
| 94 | static inline int setprop(void *devp, const char *name, void *buf, int buflen) |
| 95 | { |
| 96 | return (dt_ops.setprop) ? dt_ops.setprop(devp, name, buf, buflen) : -1; |
| 97 | } |
| 98 | |
Scott Wood | a07940b | 2007-03-16 12:27:54 -0500 | [diff] [blame^] | 99 | static inline int setprop_str(void *devp, const char *name, const char *buf) |
| 100 | { |
| 101 | if (dt_ops.setprop) |
| 102 | return dt_ops.setprop(devp, name, buf, strlen(buf) + 1); |
| 103 | |
| 104 | return -1; |
| 105 | } |
| 106 | |
| 107 | static inline void *get_parent(const char *devp) |
| 108 | { |
| 109 | return dt_ops.get_parent ? dt_ops.get_parent(devp) : NULL; |
| 110 | } |
| 111 | |
| 112 | static inline void *create_node(const void *parent, const char *name) |
| 113 | { |
| 114 | return dt_ops.create_node ? dt_ops.create_node(parent, name) : NULL; |
| 115 | } |
| 116 | |
| 117 | |
| 118 | static inline void *find_node_by_prop_value(const void *prev, |
| 119 | const char *propname, |
| 120 | const char *propval, int proplen) |
| 121 | { |
| 122 | if (dt_ops.find_node_by_prop_value) |
| 123 | return dt_ops.find_node_by_prop_value(prev, propname, |
| 124 | propval, proplen); |
| 125 | |
| 126 | return NULL; |
| 127 | } |
| 128 | |
| 129 | static inline void *find_node_by_prop_value_str(const void *prev, |
| 130 | const char *propname, |
| 131 | const char *propval) |
| 132 | { |
| 133 | return find_node_by_prop_value(prev, propname, propval, |
| 134 | strlen(propval) + 1); |
| 135 | } |
| 136 | |
| 137 | static inline void *find_node_by_devtype(const void *prev, |
| 138 | const char *type) |
| 139 | { |
| 140 | return find_node_by_prop_value_str(prev, "device_type", type); |
| 141 | } |
| 142 | |
Mark A. Greer | b2c5f61 | 2006-09-19 14:05:08 +1000 | [diff] [blame] | 143 | static inline void *malloc(u32 size) |
| 144 | { |
| 145 | return (platform_ops.malloc) ? platform_ops.malloc(size) : NULL; |
| 146 | } |
| 147 | |
Mark A. Greer | c888554 | 2006-10-16 13:49:27 -0700 | [diff] [blame] | 148 | static inline void free(void *ptr) |
Mark A. Greer | b2c5f61 | 2006-09-19 14:05:08 +1000 | [diff] [blame] | 149 | { |
| 150 | if (platform_ops.free) |
Mark A. Greer | c888554 | 2006-10-16 13:49:27 -0700 | [diff] [blame] | 151 | platform_ops.free(ptr); |
Mark A. Greer | b2c5f61 | 2006-09-19 14:05:08 +1000 | [diff] [blame] | 152 | } |
| 153 | |
| 154 | static inline void exit(void) |
| 155 | { |
| 156 | if (platform_ops.exit) |
| 157 | platform_ops.exit(); |
| 158 | for(;;); |
| 159 | } |
| 160 | |
David Gibson | cd197ff | 2007-03-05 14:24:52 +1100 | [diff] [blame] | 161 | #define BSS_STACK(size) \ |
| 162 | static char _bss_stack[size]; \ |
| 163 | void *_platform_stack_top = _bss_stack + sizeof(_bss_stack); |
| 164 | |
Mark A. Greer | b2c5f61 | 2006-09-19 14:05:08 +1000 | [diff] [blame] | 165 | #endif /* _PPC_BOOT_OPS_H_ */ |