Rev 4254 | Show entire file | Regard whitespace | Details | Blame | Last modification | View Log | RSS feed
| Rev 4254 | Rev 4274 | ||
|---|---|---|---|
| Line 133... | Line 133... | ||
| 133 | * @param devno Device number. |
133 | * @param devno Device number. |
| 134 | * @param method Method to be associated with the notification. |
134 | * @param method Method to be associated with the notification. |
| 135 | * @param ucode Uspace pointer to top-half pseudocode. |
135 | * @param ucode Uspace pointer to top-half pseudocode. |
| 136 | * |
136 | * |
| 137 | * @return EBADMEM, ENOENT or EEXISTS on failure or 0 on success. |
137 | * @return EBADMEM, ENOENT or EEXISTS on failure or 0 on success. |
| - | 138 | * |
|
| 138 | */ |
139 | */ |
| 139 | int ipc_irq_register(answerbox_t *box, inr_t inr, devno_t devno, |
140 | int ipc_irq_register(answerbox_t *box, inr_t inr, devno_t devno, |
| 140 | unative_t method, irq_code_t *ucode) |
141 | unative_t method, irq_code_t *ucode) |
| 141 | { |
142 | { |
| 142 | ipl_t ipl; |
143 | ipl_t ipl; |
| Line 177... | Line 178... | ||
| 177 | */ |
178 | */ |
| 178 | ipl = interrupts_disable(); |
179 | ipl = interrupts_disable(); |
| 179 | spinlock_lock(&irq_uspace_hash_table_lock); |
180 | spinlock_lock(&irq_uspace_hash_table_lock); |
| 180 | hlp = hash_table_find(&irq_uspace_hash_table, key); |
181 | hlp = hash_table_find(&irq_uspace_hash_table, key); |
| 181 | if (hlp) { |
182 | if (hlp) { |
| - | 183 | irq_t *hirq __attribute__((unused)) |
|
| 182 | irq_t *hirq = hash_table_get_instance(hlp, irq_t, link); |
184 | = hash_table_get_instance(hlp, irq_t, link); |
| - | 185 | ||
| 183 | /* hirq is locked */ |
186 | /* hirq is locked */ |
| 184 | spinlock_unlock(&hirq->lock); |
187 | spinlock_unlock(&hirq->lock); |
| 185 | code_free(code); |
188 | code_free(code); |
| 186 | spinlock_unlock(&irq_uspace_hash_table_lock); |
189 | spinlock_unlock(&irq_uspace_hash_table_lock); |
| 187 | free(irq); |
190 | free(irq); |
| 188 | interrupts_restore(ipl); |
191 | interrupts_restore(ipl); |
| 189 | return EEXISTS; |
192 | return EEXISTS; |
| 190 | } |
193 | } |
| - | 194 | ||
| 191 | spinlock_lock(&irq->lock); /* not really necessary, but paranoid */ |
195 | spinlock_lock(&irq->lock); /* Not really necessary, but paranoid */ |
| 192 | spinlock_lock(&box->irq_lock); |
196 | spinlock_lock(&box->irq_lock); |
| 193 | hash_table_insert(&irq_uspace_hash_table, key, &irq->link); |
197 | hash_table_insert(&irq_uspace_hash_table, key, &irq->link); |
| 194 | list_append(&irq->notif_cfg.link, &box->irq_head); |
198 | list_append(&irq->notif_cfg.link, &box->irq_head); |
| 195 | spinlock_unlock(&box->irq_lock); |
199 | spinlock_unlock(&box->irq_lock); |
| 196 | spinlock_unlock(&irq->lock); |
200 | spinlock_unlock(&irq->lock); |