20 FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
35 #include <linux/i2c-algo-bit.h>
56 	struct intelfb_i2c_chan *chan = data;  in intelfb_gpio_setscl()  local
57 	struct intelfb_info *dinfo = chan->dinfo;  in intelfb_gpio_setscl()
60 	OUTREG(chan->reg, (state ? SCL_VAL_OUT : 0) |  in intelfb_gpio_setscl()
62 	val = INREG(chan->reg);  in intelfb_gpio_setscl()
67 	struct intelfb_i2c_chan *chan = data;  in intelfb_gpio_setsda()  local
68 	struct intelfb_info *dinfo = chan->dinfo;  in intelfb_gpio_setsda()
71 	OUTREG(chan->reg, (state ? SDA_VAL_OUT : 0) |  in intelfb_gpio_setsda()
73 	val = INREG(chan->reg);  in intelfb_gpio_setsda()
78 	struct intelfb_i2c_chan *chan = data;  in intelfb_gpio_getscl()  local
79 	struct intelfb_info *dinfo = chan->dinfo;  in intelfb_gpio_getscl()
82 	OUTREG(chan->reg, SCL_DIR_MASK);  in intelfb_gpio_getscl()
83 	OUTREG(chan->reg, 0);  in intelfb_gpio_getscl()
84 	val = INREG(chan->reg);  in intelfb_gpio_getscl()
90 	struct intelfb_i2c_chan *chan = data;  in intelfb_gpio_getsda()  local
91 	struct intelfb_info *dinfo = chan->dinfo;  in intelfb_gpio_getsda()
94 	OUTREG(chan->reg, SDA_DIR_MASK);  in intelfb_gpio_getsda()
95 	OUTREG(chan->reg, 0);  in intelfb_gpio_getsda()
96 	val = INREG(chan->reg);  in intelfb_gpio_getsda()
101 				 struct intelfb_i2c_chan *chan,  in intelfb_setup_i2c_bus()  argument
102 				 const u32 reg, const char *name,  in intelfb_setup_i2c_bus()  argument
107 	chan->dinfo			= dinfo;  in intelfb_setup_i2c_bus()
108 	chan->reg			= reg;  in intelfb_setup_i2c_bus()
109 	snprintf(chan->adapter.name, sizeof(chan->adapter.name),  in intelfb_setup_i2c_bus()
110 		 "intelfb %s", name);  in intelfb_setup_i2c_bus()
111 	chan->adapter.class		= class;  in intelfb_setup_i2c_bus()
112 	chan->adapter.owner		= THIS_MODULE;  in intelfb_setup_i2c_bus()
113 	chan->adapter.algo_data		= &chan->algo;  in intelfb_setup_i2c_bus()
114 	chan->adapter.dev.parent	= &chan->dinfo->pdev->dev;  in intelfb_setup_i2c_bus()
115 	chan->algo.setsda		= intelfb_gpio_setsda;  in intelfb_setup_i2c_bus()
116 	chan->algo.setscl		= intelfb_gpio_setscl;  in intelfb_setup_i2c_bus()
117 	chan->algo.getsda		= intelfb_gpio_getsda;  in intelfb_setup_i2c_bus()
118 	chan->algo.getscl		= intelfb_gpio_getscl;  in intelfb_setup_i2c_bus()
119 	chan->algo.udelay		= 40;  in intelfb_setup_i2c_bus()
120 	chan->algo.timeout		= 20;  in intelfb_setup_i2c_bus()
121 	chan->algo.data			= chan;  in intelfb_setup_i2c_bus()
123 	i2c_set_adapdata(&chan->adapter, chan);  in intelfb_setup_i2c_bus()
126 	intelfb_gpio_setsda(chan, 1);  in intelfb_setup_i2c_bus()
127 	intelfb_gpio_setscl(chan, 1);  in intelfb_setup_i2c_bus()
130 	rc = i2c_bit_add_bus(&chan->adapter);  in intelfb_setup_i2c_bus()
132 		DBG_MSG("I2C bus %s registered.\n", name);  in intelfb_setup_i2c_bus()
134 		WRN_MSG("Failed to register I2C bus %s.\n", name);  in intelfb_setup_i2c_bus()
143 	dinfo->num_outputs = 1;  in intelfb_create_i2c_busses()
144 	dinfo->output[i].type = INTELFB_OUTPUT_ANALOG;  in intelfb_create_i2c_busses()
147 	intelfb_setup_i2c_bus(dinfo, &dinfo->output[i].ddc_bus, GPIOA,  in intelfb_create_i2c_busses()
152 	   - this function is very incomplete  in intelfb_create_i2c_busses()
153 	   - i915GM has LVDS and TVOUT for example  in intelfb_create_i2c_busses()
155 	switch(dinfo->chipset) {  in intelfb_create_i2c_busses()
161 		dinfo->output[i].type = INTELFB_OUTPUT_DVO;  in intelfb_create_i2c_busses()
162 		intelfb_setup_i2c_bus(dinfo, &dinfo->output[i].ddc_bus,  in intelfb_create_i2c_busses()
164 		intelfb_setup_i2c_bus(dinfo, &dinfo->output[i].i2c_bus,  in intelfb_create_i2c_busses()
170 		/* has some LVDS + tv-out */  in intelfb_create_i2c_busses()
176 		/* SDVO ports have a single control bus - 2 devices */  in intelfb_create_i2c_busses()
177 		dinfo->output[i].type = INTELFB_OUTPUT_SDVO;  in intelfb_create_i2c_busses()
178 		intelfb_setup_i2c_bus(dinfo, &dinfo->output[i].i2c_bus,  in intelfb_create_i2c_busses()
185 		dinfo->output[i].type = INTELFB_OUTPUT_SDVO;  in intelfb_create_i2c_busses()
186 		dinfo->output[i].i2c_bus = dinfo->output[i - 1].i2c_bus;  in intelfb_create_i2c_busses()
192 	dinfo->num_outputs = i;  in intelfb_create_i2c_busses()
200 		if (dinfo->output[i].i2c_bus.dinfo) {  in intelfb_delete_i2c_busses()
201 			i2c_del_adapter(&dinfo->output[i].i2c_bus.adapter);  in intelfb_delete_i2c_busses()
202 			dinfo->output[i].i2c_bus.dinfo = NULL;  in intelfb_delete_i2c_busses()
204 		if (dinfo->output[i].ddc_bus.dinfo) {  in intelfb_delete_i2c_busses()
205 			i2c_del_adapter(&dinfo->output[i].ddc_bus.adapter);  in intelfb_delete_i2c_busses()
206 			dinfo->output[i].ddc_bus.dinfo = NULL;  in intelfb_delete_i2c_busses()