64 static int bitbang_i2c_ret(bitbang_i2c_interface *i2c, int level)  in bitbang_i2c_ret()  argument
67                            i2c->device_out, level);  in bitbang_i2c_ret()
68     i2c->device_out = level;  in bitbang_i2c_ret()
70     return level & i2c->last_data;  in bitbang_i2c_ret()
79 /* Returns data line level.  */
80 int bitbang_i2c_set(bitbang_i2c_interface *i2c, int line, int level)  in bitbang_i2c_set()  argument
84     if (level != 0 && level != 1) {  in bitbang_i2c_set()
89         if (level == i2c->last_data) {  in bitbang_i2c_set()
92         i2c->last_data = level;  in bitbang_i2c_set()
96         if (level == 0) {  in bitbang_i2c_set()
108     if (i2c->last_clock == level) {  in bitbang_i2c_set()
111     i2c->last_clock = level;  in bitbang_i2c_set()
112     if (level == 0) {  in bitbang_i2c_set()
201 static void bitbang_i2c_gpio_set(void *opaque, int irq, int level)  in bitbang_i2c_gpio_set()  argument
205     level = bitbang_i2c_set(&s->bitbang, irq, level);  in bitbang_i2c_gpio_set()
206     if (level != s->last_level) {  in bitbang_i2c_gpio_set()
207         s->last_level = level;  in bitbang_i2c_gpio_set()
208         qemu_set_irq(s->out, level);  in bitbang_i2c_gpio_set()