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Rev 1125 Rev 1321
Line 57... Line 57...
57 
 
 57 
 
58 
	return false;
 58 
	return false;
Line 59... Line 59...
59 
}
 59 
}
60 
 
 60 
 
61 
 
 61 
 
- 
 
 62 
void radeon_i2c_do_lock(struct radeon_i2c_chan *i2c, int lock_state)
62 
void radeon_i2c_do_lock(struct radeon_connector *radeon_connector, int lock_state)
 63 
{
63 
{
 - 
 
Line 64... Line 64...
64 
	struct radeon_device *rdev = radeon_connector->base.dev->dev_private;
 64 
	struct radeon_device *rdev = i2c->dev->dev_private;
65 
	uint32_t temp;
 65 
	struct radeon_i2c_bus_rec *rec = &i2c->rec;
66 
	struct radeon_i2c_bus_rec *rec = &radeon_connector->ddc_bus->rec;
 66 
	uint32_t temp;
67 
 
 67 
 
- 
 
 68 
	/* RV410 appears to have a bug where the hw i2c in reset
68 
	/* RV410 appears to have a bug where the hw i2c in reset
 69 
	 * holds the i2c port in a bad state - switch hw i2c away before
69 
	 * holds the i2c port in a bad state - switch hw i2c away before
 70 
	 * doing DDC - do this for all r200s/r300s/r400s for safety sake
70 
	 * doing DDC - do this for all r200s/r300s/r400s for safety sake
 71 
	 */
71 
	 */
 72 
	if (rec->hw_capable) {
72 
	if ((rdev->family >= CHIP_R200) && !ASIC_IS_AVIVO(rdev)) {
 73 
	if ((rdev->family >= CHIP_R200) && !ASIC_IS_AVIVO(rdev)) {
73 
		if (rec->a_clk_reg == RADEON_GPIO_MONID) {
 74 
		if (rec->a_clk_reg == RADEON_GPIO_MONID) {
74 
			WREG32(RADEON_DVI_I2C_CNTL_0, (RADEON_I2C_SOFT_RST |
 75 
			WREG32(RADEON_DVI_I2C_CNTL_0, (RADEON_I2C_SOFT_RST |
75 
						R200_DVI_I2C_PIN_SEL(R200_SEL_DDC1)));
 76 
						R200_DVI_I2C_PIN_SEL(R200_SEL_DDC1)));
76 
		} else {
 77 
		} else {
77 
			WREG32(RADEON_DVI_I2C_CNTL_0, (RADEON_I2C_SOFT_RST |
 78 
			WREG32(RADEON_DVI_I2C_CNTL_0, (RADEON_I2C_SOFT_RST |
- 
 
 79 
						R200_DVI_I2C_PIN_SEL(R200_SEL_DDC3)));
78 
						R200_DVI_I2C_PIN_SEL(R200_SEL_DDC3)));
 80 
		}
79 
		}
 81 
	}
80 
	}
 82 
	}
Line 81... Line 83...
81 
	if (lock_state) {
 83 
 
82 
		temp = RREG32(rec->a_clk_reg);
 - 
 
83 
		temp &= ~(rec->a_clk_mask);
 84 
	/* clear the output pin values */
84 
		WREG32(rec->a_clk_reg, temp);
 - 
 
Line -... Line 85...
- 
 
 85 
	temp = RREG32(rec->a_clk_reg) & ~rec->a_clk_mask;
- 
 
 86 
		WREG32(rec->a_clk_reg, temp);
- 
 
 87 
 
- 
 
 88 
	temp = RREG32(rec->a_data_reg) & ~rec->a_data_mask;
- 
 
 89 
		WREG32(rec->a_data_reg, temp);
- 
 
 90 
 
- 
 
 91 
	/* set the pins to input */
- 
 
 92 
	temp = RREG32(rec->en_clk_reg) & ~rec->en_clk_mask;
85 
 
 93 
	WREG32(rec->en_clk_reg, temp);
86 
		temp = RREG32(rec->a_data_reg);
 94 
 
87 
		temp &= ~(rec->a_data_mask);
 95 
	temp = RREG32(rec->en_data_reg) & ~rec->en_data_mask;
88 
		WREG32(rec->a_data_reg, temp);
 96 
	WREG32(rec->en_data_reg, temp);
89 
	}
 97 
 
Line 110... Line 118...
110 
	struct radeon_i2c_chan *i2c = i2c_priv;
 118 
	struct radeon_i2c_chan *i2c = i2c_priv;
111 
	struct radeon_device *rdev = i2c->dev->dev_private;
 119 
	struct radeon_device *rdev = i2c->dev->dev_private;
112 
	struct radeon_i2c_bus_rec *rec = &i2c->rec;
 120 
	struct radeon_i2c_bus_rec *rec = &i2c->rec;
113 
	uint32_t val;
 121 
	uint32_t val;
Line -... Line 122...
- 
 
 122 
 
114 
 
 123 
	/* read the value off the pin */
115 
	val = RREG32(rec->get_clk_reg);
 124 
	val = RREG32(rec->y_clk_reg);
Line 116... Line 125...
116 
	val &= rec->get_clk_mask;
 125 
	val &= rec->y_clk_mask;
117 
 
 126 
 
Line 124... Line 133...
124 
	struct radeon_i2c_chan *i2c = i2c_priv;
 133 
	struct radeon_i2c_chan *i2c = i2c_priv;
125 
	struct radeon_device *rdev = i2c->dev->dev_private;
 134 
	struct radeon_device *rdev = i2c->dev->dev_private;
126 
	struct radeon_i2c_bus_rec *rec = &i2c->rec;
 135 
	struct radeon_i2c_bus_rec *rec = &i2c->rec;
127 
	uint32_t val;
 136 
	uint32_t val;
Line -... Line 137...
- 
 
 137 
 
128 
 
 138 
	/* read the value off the pin */
129 
	val = RREG32(rec->get_data_reg);
 139 
	val = RREG32(rec->y_data_reg);
- 
 
 140 
	val &= rec->y_data_mask;
130 
	val &= rec->get_data_mask;
 141 
 
131 
	return (val != 0);
 142 
	return (val != 0);
Line 132... Line 143...
132 
}
 143 
}
133 
 
 144 
 
134 
static void set_clock(void *i2c_priv, int clock)
 145 
static void set_clock(void *i2c_priv, int clock)
135 
{
 146 
{
136 
	struct radeon_i2c_chan *i2c = i2c_priv;
 147 
	struct radeon_i2c_chan *i2c = i2c_priv;
137 
	struct radeon_device *rdev = i2c->dev->dev_private;
 148 
	struct radeon_device *rdev = i2c->dev->dev_private;
Line -... Line 149...
- 
 
 149 
	struct radeon_i2c_bus_rec *rec = &i2c->rec;
138 
	struct radeon_i2c_bus_rec *rec = &i2c->rec;
 150 
	uint32_t val;
139 
	uint32_t val;
 151 
 
140 
 
 152 
	/* set pin direction */
141 
	val = RREG32(rec->put_clk_reg) & (uint32_t)~(rec->put_clk_mask);
 153 
	val = RREG32(rec->en_clk_reg) & ~rec->en_clk_mask;
Line 142... Line 154...
142 
	val |= clock ? 0 : rec->put_clk_mask;
 154 
	val |= clock ? 0 : rec->en_clk_mask;
143 
	WREG32(rec->put_clk_reg, val);
 155 
	WREG32(rec->en_clk_reg, val);
144 
}
 156 
}
145 
 
 157 
 
146 
static void set_data(void *i2c_priv, int data)
 158 
static void set_data(void *i2c_priv, int data)
147 
{
 159 
{
Line -... Line 160...
- 
 
 160 
	struct radeon_i2c_chan *i2c = i2c_priv;
148 
	struct radeon_i2c_chan *i2c = i2c_priv;
 161 
	struct radeon_device *rdev = i2c->dev->dev_private;
149 
	struct radeon_device *rdev = i2c->dev->dev_private;
 162 
	struct radeon_i2c_bus_rec *rec = &i2c->rec;
150 
	struct radeon_i2c_bus_rec *rec = &i2c->rec;
 163 
	uint32_t val;
151 
	uint32_t val;
 164 
 
Line 152... Line 165...
152 
 
 165 
	/* set pin direction */
153 
	val = RREG32(rec->put_data_reg) & (uint32_t)~(rec->put_data_mask);
 166 
	val = RREG32(rec->en_data_reg) & ~rec->en_data_mask;
154 
	val |= data ? 0 : rec->put_data_mask;
 167 
	val |= data ? 0 : rec->en_data_mask;
Line 164... Line 177...
164 
 
 177 
 
165 
	i2c = kzalloc(sizeof(struct radeon_i2c_chan), GFP_KERNEL);
 178 
	i2c = kzalloc(sizeof(struct radeon_i2c_chan), GFP_KERNEL);
166 
	if (i2c == NULL)
 179 
	if (i2c == NULL)
Line 167... Line -...
167 
		return NULL;
 - 
 
168 
 
 - 
 
169 
//   i2c->adapter.owner = THIS_MODULE;
 180 
		return NULL;
- 
 
 181 
 
170 
	i2c->adapter.algo_data = &i2c->algo;
 182 
	i2c->dev = dev;
171 
	i2c->dev = dev;
 183 
	i2c->adapter.algo_data = &i2c->algo.bit;
172 
	i2c->algo.setsda = set_data;
 184 
	i2c->algo.bit.setsda = set_data;
173 
	i2c->algo.setscl = set_clock;
 185 
	i2c->algo.bit.setscl = set_clock;
174 
	i2c->algo.getsda = get_data;
 186 
	i2c->algo.bit.getsda = get_data;
175 
	i2c->algo.getscl = get_clock;
 187 
	i2c->algo.bit.getscl = get_clock;
176 
	i2c->algo.udelay = 20;
 188 
	i2c->algo.bit.udelay = 20;
177 
	/* vesa says 2.2 ms is enough, 1 jiffy doesn't seem to always
 189 
	/* vesa says 2.2 ms is enough, 1 jiffy doesn't seem to always
178 
	 * make this, 2 jiffies is a lot more reliable */
 190 
	 * make this, 2 jiffies is a lot more reliable */
179 
	i2c->algo.timeout = 2;
 191 
	i2c->algo.bit.timeout = 2;
180 
	i2c->algo.data = i2c;
 - 
 
181 
	i2c->rec = *rec;
 - 
 
182 
//   i2c_set_adapdata(&i2c->adapter, i2c);
 192 
	i2c->algo.bit.data = i2c;
183 
 
 193 
	i2c->rec = *rec;
184 
	ret = i2c_bit_add_bus(&i2c->adapter);
 194 
	ret = i2c_bit_add_bus(&i2c->adapter);
185 
	if (ret) {
 195 
	if (ret) {
186 
		DRM_INFO("Failed to register i2c %s\n", name);
 196 
		DRM_INFO("Failed to register i2c %s\n", name);
Line 192... Line 202...
192 
	kfree(i2c);
 202 
	kfree(i2c);
193 
	return NULL;
 203 
	return NULL;
Line 194... Line 204...
194 
 
 204 
 
Line -... Line 205...
- 
 
 205 
}
- 
 
 206 
 
- 
 
 207 
struct radeon_i2c_chan *radeon_i2c_create_dp(struct drm_device *dev,
- 
 
 208 
					     struct radeon_i2c_bus_rec *rec,
- 
 
 209 
					     const char *name)
- 
 
 210 
{
- 
 
 211 
	struct radeon_i2c_chan *i2c;
- 
 
 212 
	int ret;
- 
 
 213 
 
- 
 
 214 
	i2c = kzalloc(sizeof(struct radeon_i2c_chan), GFP_KERNEL);
- 
 
 215 
	if (i2c == NULL)
- 
 
 216 
		return NULL;
- 
 
 217 
 
- 
 
 218 
	i2c->rec = *rec;
- 
 
 219 
	i2c->adapter.owner = THIS_MODULE;
- 
 
 220 
	i2c->dev = dev;
- 
 
 221 
	i2c->adapter.algo_data = &i2c->algo.dp;
- 
 
 222 
	i2c->algo.dp.aux_ch = radeon_dp_i2c_aux_ch;
- 
 
 223 
	i2c->algo.dp.address = 0;
- 
 
 224 
	ret = i2c_dp_aux_add_bus(&i2c->adapter);
- 
 
 225 
	if (ret) {
- 
 
 226 
		DRM_INFO("Failed to register i2c %s\n", name);
- 
 
 227 
		goto out_free;
- 
 
 228 
	}
- 
 
 229 
 
- 
 
 230 
	return i2c;
- 
 
 231 
out_free:
- 
 
 232 
	kfree(i2c);
- 
 
 233 
	return NULL;
- 
 
 234 
 
- 
 
 235 
}
195 
}
 236 
 
196 
 
 237 
 
197 
void radeon_i2c_destroy(struct radeon_i2c_chan *i2c)
 238 
void radeon_i2c_destroy(struct radeon_i2c_chan *i2c)
198 
{
 239 
{
Line 199... Line -...
199 
	if (!i2c)
 - 
 
200 
		return;
 240 
	if (!i2c)
201 
 
 241 
		return;
Line 202... Line 242...
202 
 //  i2c_del_adapter(&i2c->adapter);
 242 
 
203 
	kfree(i2c);
 243 
	kfree(i2c);
204 
}
 244 
}
205 
 
 245 
 
- 
 
 246 
struct drm_encoder *radeon_best_encoder(struct drm_connector *connector)
- 
 
 247 
{
- 
 
 248 
	return NULL;
- 
 
 249 
}
- 
 
 250 
 
- 
 
 251 
void radeon_i2c_sw_get_byte(struct radeon_i2c_chan *i2c_bus,
- 
 
 252 
			    u8 slave_addr,
- 
 
 253 
			    u8 addr,
- 
 
 254 
			    u8 *val)
- 
 
 255 
{
- 
 
 256 
	u8 out_buf[2];
- 
 
 257 
	u8 in_buf[2];
- 
 
 258 
	struct i2c_msg msgs[] = {
- 
 
 259 
		{
- 
 
 260 
			.addr = slave_addr,
- 
 
 261 
			.flags = 0,
- 
 
 262 
			.len = 1,
- 
 
 263 
			.buf = out_buf,
- 
 
 264 
		},
- 
 
 265 
		{
- 
 
 266 
			.addr = slave_addr,
- 
 
 267 
			.flags = I2C_M_RD,
- 
 
 268 
			.len = 1,
- 
 
 269 
			.buf = in_buf,
- 
 
 270 
		}
- 
 
 271 
	};
- 
 
 272 
 
- 
 
 273 
	out_buf[0] = addr;
- 
 
 274 
	out_buf[1] = 0;
- 
 
 275 
 
- 
 
 276 
	if (i2c_transfer(&i2c_bus->adapter, msgs, 2) == 2) {
- 
 
 277 
		*val = in_buf[0];
- 
 
 278 
		DRM_DEBUG("val = 0x%02x\n", *val);
- 
 
 279 
	} else {
- 
 
 280 
		DRM_ERROR("i2c 0x%02x 0x%02x read failed\n",
- 
 
 281 
			  addr, *val);
- 
 
 282 
	}
- 
 
 283 
}
- 
 
 284 
 
- 
 
 285 
void radeon_i2c_sw_put_byte(struct radeon_i2c_chan *i2c_bus,
- 
 
 286 
			    u8 slave_addr,
- 
 
 287 
			    u8 addr,
- 
 
 288 
			    u8 val)
- 
 
 289 
{
- 
 
 290 
	uint8_t out_buf[2];
- 
 
 291 
	struct i2c_msg msg = {
- 
 
 292 
		.addr = slave_addr,
- 
 
 293 
		.flags = 0,
- 
 
 294 
		.len = 2,
- 
 
 295 
		.buf = out_buf,
- 
 
 296 
	};
- 
 
 297 
 
- 
 
 298 
	out_buf[0] = addr;
- 
 
 299 
	out_buf[1] = val;
- 
 
 300 
 
- 
 
 301 
	if (i2c_transfer(&i2c_bus->adapter, &msg, 1) != 1)