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path: root/drivers/i2c/busses/i2c-viapro.c
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Diffstat (limited to 'drivers/i2c/busses/i2c-viapro.c')
-rw-r--r--drivers/i2c/busses/i2c-viapro.c22
1 files changed, 16 insertions, 6 deletions
diff --git a/drivers/i2c/busses/i2c-viapro.c b/drivers/i2c/busses/i2c-viapro.c
index 862eb352a2d9..9f194d9efd91 100644
--- a/drivers/i2c/busses/i2c-viapro.c
+++ b/drivers/i2c/busses/i2c-viapro.c
@@ -36,6 +36,7 @@
36 VT8237S 0x3372 yes 36 VT8237S 0x3372 yes
37 VT8251 0x3287 yes 37 VT8251 0x3287 yes
38 CX700 0x8324 yes 38 CX700 0x8324 yes
39 VX800/VX820 0x8353 yes
39 40
40 Note: we assume there can only be one device, with one SMBus interface. 41 Note: we assume there can only be one device, with one SMBus interface.
41*/ 42*/
@@ -82,6 +83,7 @@ static unsigned short SMBHSTCFG = 0xD2;
82#define VT596_BYTE 0x04 83#define VT596_BYTE 0x04
83#define VT596_BYTE_DATA 0x08 84#define VT596_BYTE_DATA 0x08
84#define VT596_WORD_DATA 0x0C 85#define VT596_WORD_DATA 0x0C
86#define VT596_PROC_CALL 0x10
85#define VT596_BLOCK_DATA 0x14 87#define VT596_BLOCK_DATA 0x14
86#define VT596_I2C_BLOCK_DATA 0x34 88#define VT596_I2C_BLOCK_DATA 0x34
87 89
@@ -232,6 +234,12 @@ static s32 vt596_access(struct i2c_adapter *adap, u16 addr,
232 } 234 }
233 size = VT596_WORD_DATA; 235 size = VT596_WORD_DATA;
234 break; 236 break;
237 case I2C_SMBUS_PROC_CALL:
238 outb_p(command, SMBHSTCMD);
239 outb_p(data->word & 0xff, SMBHSTDAT0);
240 outb_p((data->word & 0xff00) >> 8, SMBHSTDAT1);
241 size = VT596_PROC_CALL;
242 break;
235 case I2C_SMBUS_I2C_BLOCK_DATA: 243 case I2C_SMBUS_I2C_BLOCK_DATA:
236 if (!(vt596_features & FEATURE_I2CBLOCK)) 244 if (!(vt596_features & FEATURE_I2CBLOCK))
237 goto exit_unsupported; 245 goto exit_unsupported;
@@ -262,6 +270,9 @@ static s32 vt596_access(struct i2c_adapter *adap, u16 addr,
262 if (status) 270 if (status)
263 return status; 271 return status;
264 272
273 if (size == VT596_PROC_CALL)
274 read_write = I2C_SMBUS_READ;
275
265 if ((read_write == I2C_SMBUS_WRITE) || (size == VT596_QUICK)) 276 if ((read_write == I2C_SMBUS_WRITE) || (size == VT596_QUICK))
266 return 0; 277 return 0;
267 278
@@ -271,6 +282,7 @@ static s32 vt596_access(struct i2c_adapter *adap, u16 addr,
271 data->byte = inb_p(SMBHSTDAT0); 282 data->byte = inb_p(SMBHSTDAT0);
272 break; 283 break;
273 case VT596_WORD_DATA: 284 case VT596_WORD_DATA:
285 case VT596_PROC_CALL:
274 data->word = inb_p(SMBHSTDAT0) + (inb_p(SMBHSTDAT1) << 8); 286 data->word = inb_p(SMBHSTDAT0) + (inb_p(SMBHSTDAT1) << 8);
275 break; 287 break;
276 case VT596_I2C_BLOCK_DATA: 288 case VT596_I2C_BLOCK_DATA:
@@ -295,7 +307,7 @@ static u32 vt596_func(struct i2c_adapter *adapter)
295{ 307{
296 u32 func = I2C_FUNC_SMBUS_QUICK | I2C_FUNC_SMBUS_BYTE | 308 u32 func = I2C_FUNC_SMBUS_QUICK | I2C_FUNC_SMBUS_BYTE |
297 I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA | 309 I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA |
298 I2C_FUNC_SMBUS_BLOCK_DATA; 310 I2C_SMBUS_PROC_CALL | I2C_FUNC_SMBUS_BLOCK_DATA;
299 311
300 if (vt596_features & FEATURE_I2CBLOCK) 312 if (vt596_features & FEATURE_I2CBLOCK)
301 func |= I2C_FUNC_SMBUS_I2C_BLOCK; 313 func |= I2C_FUNC_SMBUS_I2C_BLOCK;
@@ -320,10 +332,6 @@ static int __devinit vt596_probe(struct pci_dev *pdev,
320 unsigned char temp; 332 unsigned char temp;
321 int error = -ENODEV; 333 int error = -ENODEV;
322 334
323 /* driver_data might come from user-space, so check it */
324 if (id->driver_data & 1 || id->driver_data > 0xff)
325 return -EINVAL;
326
327 /* Determine the address of the SMBus areas */ 335 /* Determine the address of the SMBus areas */
328 if (force_addr) { 336 if (force_addr) {
329 vt596_smba = force_addr & 0xfff0; 337 vt596_smba = force_addr & 0xfff0;
@@ -396,6 +404,7 @@ found:
396 404
397 switch (pdev->device) { 405 switch (pdev->device) {
398 case PCI_DEVICE_ID_VIA_CX700: 406 case PCI_DEVICE_ID_VIA_CX700:
407 case PCI_DEVICE_ID_VIA_VX800:
399 case PCI_DEVICE_ID_VIA_8251: 408 case PCI_DEVICE_ID_VIA_8251:
400 case PCI_DEVICE_ID_VIA_8237: 409 case PCI_DEVICE_ID_VIA_8237:
401 case PCI_DEVICE_ID_VIA_8237A: 410 case PCI_DEVICE_ID_VIA_8237A:
@@ -459,6 +468,8 @@ static struct pci_device_id vt596_ids[] = {
459 .driver_data = SMBBA3 }, 468 .driver_data = SMBBA3 },
460 { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_CX700), 469 { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_CX700),
461 .driver_data = SMBBA3 }, 470 .driver_data = SMBBA3 },
471 { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VX800),
472 .driver_data = SMBBA3 },
462 { 0, } 473 { 0, }
463}; 474};
464 475
@@ -468,7 +479,6 @@ static struct pci_driver vt596_driver = {
468 .name = "vt596_smbus", 479 .name = "vt596_smbus",
469 .id_table = vt596_ids, 480 .id_table = vt596_ids,
470 .probe = vt596_probe, 481 .probe = vt596_probe,
471 .dynids.use_driver_data = 1,
472}; 482};
473 483
474static int __init i2c_vt596_init(void) 484static int __init i2c_vt596_init(void)