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hw/i2c/versatile_i2c: Add SCL/SDA definitions 

Use self-explicit definitions instead of magic values.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20200617072539.32686-4-f4bug@amsat.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Philippe Mathieu-Daudé 2020-06-17 09:25:28 +02:00 committed by Peter Maydell
parent faa1bdfa32
commit cfcfbae0a1
1 changed files with 5 additions and 2 deletions
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7
hw/i2c/versatile_i2c.c
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@ -45,6 +45,9 @@ REG32(CONTROL_GET, 0)
REG32(CONTROL_SET, 0)
REG32(CONTROL_CLR, 4)
#define SCL BIT(0)
#define SDA BIT(1)
static uint64_t versatile_i2c_read(void *opaque, hwaddr offset,
unsigned size)
{
@ -76,8 +79,8 @@ static void versatile_i2c_write(void *opaque, hwaddr offset,
qemu_log_mask(LOG_GUEST_ERROR,
"%s: Bad offset 0x%x\n", __func__, (int)offset);
}
bitbang_i2c_set(&s->bitbang, BITBANG_I2C_SCL, (s->out & 1) != 0);
s->in = bitbang_i2c_set(&s->bitbang, BITBANG_I2C_SDA, (s->out & 2) != 0);
bitbang_i2c_set(&s->bitbang, BITBANG_I2C_SCL, (s->out & SCL) != 0);
s->in = bitbang_i2c_set(&s->bitbang, BITBANG_I2C_SDA, (s->out & SDA) != 0);
}
static const MemoryRegionOps versatile_i2c_ops = {