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61 lines
1.2 KiB
61 lines
1.2 KiB
13 years ago
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#ifndef _REG_FIELD_H
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#define _REG_FIELD_H
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#include <stdint.h>
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#include <stdarg.h>
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enum cmd_op {
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CMD_OP_GET = (1 << 0),
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CMD_OP_SET = (1 << 1),
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CMD_OP_EXEC = (1 << 2),
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};
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enum pstate {
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ST_IN_CMD,
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ST_IN_ARG,
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};
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struct strbuf {
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uint8_t idx;
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char buf[32];
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};
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struct cmd_state {
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struct strbuf cmd;
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struct strbuf arg;
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enum pstate state;
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void (*out)(const char *format, va_list ap);
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};
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struct cmd {
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const char *cmd;
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uint32_t ops;
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int (*cb)(struct cmd_state *cs, enum cmd_op op, const char *cmd,
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int argc, char **argv);
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const char *help;
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};
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/* structure describing a field in a register */
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struct reg_field {
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uint8_t reg;
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uint8_t shift;
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uint8_t width;
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};
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struct reg_field_ops {
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const struct reg_field *fields;
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const char **field_names;
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uint32_t num_fields;
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void *data;
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int (*write_cb)(void *data, uint32_t reg, uint32_t val);
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uint32_t (*read_cb)(void *data, uint32_t reg);
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};
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uint32_t reg_field_read(struct reg_field_ops *ops, struct reg_field *field);
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int reg_field_write(struct reg_field_ops *ops, struct reg_field *field, uint32_t val);
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int reg_field_cmd(struct cmd_state *cs, enum cmd_op op,
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const char *cmd, int argc, char **argv,
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struct reg_field_ops *ops);
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#endif
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