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49cad54788
this is an atempt to make the export of functions typesafe. I replaced the jumptable void ** by a struct (jt_funcs) with function pointers. The EXPORT_FUNC macro now has 3 fixed parameters and one variadic parameter The first is the name of the exported function, the rest of the parameters are used to format a functionpointer in the jumptable, the EXPORT_FUNC macros are expanded three times, 1. to declare the members of the struct 2. to initialize the structmember pointers 3. to call the functions in stubs.c Signed-off-by: Martin Dorwig <dorwig@tetronik.com> Acked-by: Simon Glass <sjg@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> (resending to the list since my tweaks are not quite trivial)
73 lines
3 KiB
C
73 lines
3 KiB
C
/*
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* You need to use #ifdef around functions that may not exist
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* in the final configuration (such as i2c).
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* use a dummyfunction as first parameter to EXPORT_FUNC.
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* As an example see the CONFIG_CMD_I2C section below
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*/
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#ifndef EXPORT_FUNC
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#define EXPORT_FUNC(a, b, c, ...)
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#endif
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EXPORT_FUNC(get_version, unsigned long, get_version, void)
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EXPORT_FUNC(getc, int, getc, void)
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EXPORT_FUNC(tstc, int, tstc, void)
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EXPORT_FUNC(putc, void, putc, const char)
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EXPORT_FUNC(puts, void, puts, const char *)
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EXPORT_FUNC(printf, int, printf, const char*, ...)
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#if defined(CONFIG_X86) || defined(CONFIG_PPC)
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EXPORT_FUNC(irq_install_handler, void, install_hdlr,
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int, interrupt_handler_t, void*)
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EXPORT_FUNC(irq_free_handler, void, free_hdlr, int)
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#else
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EXPORT_FUNC(dummy, void, install_hdlr, void)
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EXPORT_FUNC(dummy, void, free_hdlr, void)
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#endif
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EXPORT_FUNC(malloc, void *, malloc, size_t)
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EXPORT_FUNC(free, void, free, void *)
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EXPORT_FUNC(udelay, void, udelay, unsigned long)
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EXPORT_FUNC(get_timer, unsigned long, get_timer, unsigned long)
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EXPORT_FUNC(vprintf, int, vprintf, const char *, va_list)
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EXPORT_FUNC(do_reset, int, do_reset, cmd_tbl_t *,
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int , int , char * const [])
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EXPORT_FUNC(getenv, char *, getenv, const char*)
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EXPORT_FUNC(setenv, int, setenv, const char *, const char *)
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EXPORT_FUNC(simple_strtoul, unsigned long, simple_strtoul,
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const char *, char **, unsigned int)
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EXPORT_FUNC(strict_strtoul, int, strict_strtoul,
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const char *, unsigned int , unsigned long *)
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EXPORT_FUNC(simple_strtol, long, simple_strtol,
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const char *, char **, unsigned int)
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EXPORT_FUNC(strcmp, int, strcmp, const char *cs, const char *ct)
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#if defined(CONFIG_CMD_I2C) && \
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(!defined(CONFIG_DM_I2C) || defined(CONFIG_DM_I2C_COMPAT))
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EXPORT_FUNC(i2c_write, int, i2c_write, uchar, uint, int , uchar * , int)
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EXPORT_FUNC(i2c_read, int, i2c_read, uchar, uint, int , uchar * , int)
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#else
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EXPORT_FUNC(dummy, void, i2c_write, void)
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EXPORT_FUNC(dummy, void, i2c_read, void)
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#endif
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#if !defined(CONFIG_CMD_SPI) || defined(CONFIG_DM_SPI)
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EXPORT_FUNC(dummy, void, spi_init, void)
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EXPORT_FUNC(dummy, void, spi_setup_slave, void)
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EXPORT_FUNC(dummy, void, spi_free_slave, void)
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#else
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EXPORT_FUNC(spi_init, void, spi_init, void)
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EXPORT_FUNC(spi_setup_slave, struct spi_slave *, spi_setup_slave,
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unsigned int, unsigned int, unsigned int, unsigned int)
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EXPORT_FUNC(spi_free_slave, void, spi_free_slave, struct spi_slave *)
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#endif
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#ifndef CONFIG_CMD_SPI
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EXPORT_FUNC(dummy, void, spi_claim_bus, void)
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EXPORT_FUNC(dummy, void, spi_release_bus, void)
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EXPORT_FUNC(dummy, void, spi_xfer, void)
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#else
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EXPORT_FUNC(spi_claim_bus, int, spi_claim_bus, struct spi_slave *)
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EXPORT_FUNC(spi_release_bus, void, spi_release_bus, struct spi_slave *)
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EXPORT_FUNC(spi_xfer, int, spi_xfer, struct spi_slave *,
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unsigned int, const void *, void *, unsigned long)
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#endif
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EXPORT_FUNC(ustrtoul, unsigned long, ustrtoul,
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const char *, char **, unsigned int)
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EXPORT_FUNC(ustrtoull, unsigned long long, ustrtoull,
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const char *, char **, unsigned int)
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