|
Lines 187-205
Link Here
|
| 187 |
bp->waiting = 1; |
187 |
bp->waiting = 1; |
| 188 |
add_wait_queue(&bp->wq, &wait); |
188 |
add_wait_queue(&bp->wq, &wait); |
| 189 |
while (limit-- > 0) { |
189 |
while (limit-- > 0) { |
| 190 |
u8 val; |
190 |
long val; |
| 191 |
|
191 |
|
| 192 |
set_current_state(TASK_INTERRUPTIBLE); |
192 |
val = wait_event_interruptible_timeout(bp->wq, |
| 193 |
*status = val = readb(bp->i2c_control_regs + 0); |
193 |
(((*status = readb(bp->i2c_control_regs + 0)) & I2C_PCF_PIN) == 0), |
| 194 |
if ((val & I2C_PCF_PIN) == 0) { |
194 |
msecs_to_jiffies(250)); |
|
|
195 |
if ((val != -ERESTARTSYS) && (val > 0)) { |
| 195 |
ret = 0; |
196 |
ret = 0; |
| 196 |
break; |
197 |
break; |
| 197 |
} |
198 |
} |
| 198 |
msleep_interruptible(250); |
|
|
| 199 |
} |
199 |
} |
| 200 |
remove_wait_queue(&bp->wq, &wait); |
200 |
remove_wait_queue(&bp->wq, &wait); |
| 201 |
bp->waiting = 0; |
201 |
bp->waiting = 0; |
| 202 |
current->state = TASK_RUNNING; |
|
|
| 203 |
|
202 |
|
| 204 |
return ret; |
203 |
return ret; |
| 205 |
} |
204 |
} |
|
Lines 340-346
Link Here
|
| 340 |
*/ |
339 |
*/ |
| 341 |
if (bp->waiting && |
340 |
if (bp->waiting && |
| 342 |
!(readb(bp->i2c_control_regs + 0x0) & I2C_PCF_PIN)) |
341 |
!(readb(bp->i2c_control_regs + 0x0) & I2C_PCF_PIN)) |
| 343 |
wake_up(&bp->wq); |
342 |
wake_up_interruptible(&bp->wq); |
| 344 |
|
343 |
|
| 345 |
return IRQ_HANDLED; |
344 |
return IRQ_HANDLED; |
| 346 |
} |
345 |
} |
