diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-07-26 02:09:27 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-07-26 02:09:27 -0400 |
commit | d5ef642355bdd9b383ff5c18cbc6102a06eecbaf (patch) | |
tree | fcf78d33c1790c6c24efbfd0c3695f7874f053d7 /drivers/misc | |
parent | f549953c15deab4c54708b39af86d4edecc6cddc (diff) | |
parent | def90f4239f094f3846c108c1c41a4cd55c33e8e (diff) |
Merge branch 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6
* 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6: (26 commits)
amba pl011: workaround for uart registers lockup
n_gsm: fix the wrong FCS handling
pch_uart: add missing comment about OKI ML7223
pch_uart: Add MSI support
tty: fix "IRQ45: nobody cared"
PTI feature to allow user to name and mark masterchannel request.
0 for o PTI Makefile bug.
tty: serial: samsung.c remove legacy PM code.
SERIAL: SC26xx: Fix link error.
serial: mrst_max3110: initialize waitqueue earlier
mrst_max3110: Change max missing message priority.
tty: s5pv210: Add delay loop on fifo reset function for UART
tty/serial: Fix XSCALE serial ports, e.g. ce4100
serial: bfin_5xx: fix off-by-one with resource size
drivers/tty: use printk_ratelimited() instead of printk_ratelimit()
tty: n_gsm: Added refcount usage to gsm_mux and gsm_dlci structs
tty: n_gsm: Add raw-ip support
tty: n_gsm: expose gsmtty device nodes at ldisc open time
pch_phub: Fix register miss-setting issue
serial: 8250, increase PASS_LIMIT
...
Diffstat (limited to 'drivers/misc')
-rw-r--r-- | drivers/misc/Makefile | 2 | ||||
-rw-r--r-- | drivers/misc/pch_phub.c | 4 | ||||
-rw-r--r-- | drivers/misc/pti.c | 99 |
3 files changed, 63 insertions, 42 deletions
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile index 33282157bc3c..8f3efb68a141 100644 --- a/drivers/misc/Makefile +++ b/drivers/misc/Makefile | |||
@@ -6,7 +6,7 @@ obj-$(CONFIG_IBM_ASM) += ibmasm/ | |||
6 | obj-$(CONFIG_AD525X_DPOT) += ad525x_dpot.o | 6 | obj-$(CONFIG_AD525X_DPOT) += ad525x_dpot.o |
7 | obj-$(CONFIG_AD525X_DPOT_I2C) += ad525x_dpot-i2c.o | 7 | obj-$(CONFIG_AD525X_DPOT_I2C) += ad525x_dpot-i2c.o |
8 | obj-$(CONFIG_AD525X_DPOT_SPI) += ad525x_dpot-spi.o | 8 | obj-$(CONFIG_AD525X_DPOT_SPI) += ad525x_dpot-spi.o |
9 | 0bj-$(CONFIG_INTEL_MID_PTI) += pti.o | 9 | obj-$(CONFIG_INTEL_MID_PTI) += pti.o |
10 | obj-$(CONFIG_ATMEL_PWM) += atmel_pwm.o | 10 | obj-$(CONFIG_ATMEL_PWM) += atmel_pwm.o |
11 | obj-$(CONFIG_ATMEL_SSC) += atmel-ssc.o | 11 | obj-$(CONFIG_ATMEL_SSC) += atmel-ssc.o |
12 | obj-$(CONFIG_ATMEL_TCLIB) += atmel_tclib.o | 12 | obj-$(CONFIG_ATMEL_TCLIB) += atmel_tclib.o |
diff --git a/drivers/misc/pch_phub.c b/drivers/misc/pch_phub.c index 01eb67b4871a..0fd7e77bee29 100644 --- a/drivers/misc/pch_phub.c +++ b/drivers/misc/pch_phub.c | |||
@@ -735,6 +735,8 @@ static int __devinit pch_phub_probe(struct pci_dev *pdev, | |||
735 | * Device8(GbE) | 735 | * Device8(GbE) |
736 | */ | 736 | */ |
737 | iowrite32(0x000a0000, chip->pch_phub_base_address + 0x14); | 737 | iowrite32(0x000a0000, chip->pch_phub_base_address + 0x14); |
738 | /* set the interrupt delay value */ | ||
739 | iowrite32(0x25, chip->pch_phub_base_address + 0x140); | ||
738 | chip->pch_opt_rom_start_address =\ | 740 | chip->pch_opt_rom_start_address =\ |
739 | PCH_PHUB_ROM_START_ADDR_ML7223; | 741 | PCH_PHUB_ROM_START_ADDR_ML7223; |
740 | chip->pch_mac_start_address = PCH_PHUB_MAC_START_ADDR_ML7223; | 742 | chip->pch_mac_start_address = PCH_PHUB_MAC_START_ADDR_ML7223; |
@@ -752,8 +754,6 @@ static int __devinit pch_phub_probe(struct pci_dev *pdev, | |||
752 | * Device6(SATA 2):f | 754 | * Device6(SATA 2):f |
753 | */ | 755 | */ |
754 | iowrite32(0x0000ffa0, chip->pch_phub_base_address + 0x14); | 756 | iowrite32(0x0000ffa0, chip->pch_phub_base_address + 0x14); |
755 | /* set the interrupt delay value */ | ||
756 | iowrite32(0x25, chip->pch_phub_base_address + 0x140); | ||
757 | chip->pch_opt_rom_start_address =\ | 757 | chip->pch_opt_rom_start_address =\ |
758 | PCH_PHUB_ROM_START_ADDR_ML7223; | 758 | PCH_PHUB_ROM_START_ADDR_ML7223; |
759 | chip->pch_mac_start_address = PCH_PHUB_MAC_START_ADDR_ML7223; | 759 | chip->pch_mac_start_address = PCH_PHUB_MAC_START_ADDR_ML7223; |
diff --git a/drivers/misc/pti.c b/drivers/misc/pti.c index e5f295a38a34..8653bd0b1a33 100644 --- a/drivers/misc/pti.c +++ b/drivers/misc/pti.c | |||
@@ -146,45 +146,54 @@ static void pti_write_to_aperture(struct pti_masterchannel *mc, | |||
146 | /** | 146 | /** |
147 | * pti_control_frame_built_and_sent()- control frame build and send function. | 147 | * pti_control_frame_built_and_sent()- control frame build and send function. |
148 | * | 148 | * |
149 | * @mc: The master / channel structure on which the function | 149 | * @mc: The master / channel structure on which the function |
150 | * built a control frame. | 150 | * built a control frame. |
151 | * @thread_name: The thread name associated with the master / channel or | ||
152 | * 'NULL' if using the 'current' global variable. | ||
151 | * | 153 | * |
152 | * To be able to post process the PTI contents on host side, a control frame | 154 | * To be able to post process the PTI contents on host side, a control frame |
153 | * is added before sending any PTI content. So the host side knows on | 155 | * is added before sending any PTI content. So the host side knows on |
154 | * each PTI frame the name of the thread using a dedicated master / channel. | 156 | * each PTI frame the name of the thread using a dedicated master / channel. |
155 | * The thread name is retrieved from the 'current' global variable. | 157 | * The thread name is retrieved from 'current' global variable if 'thread_name' |
158 | * is 'NULL', else it is retrieved from 'thread_name' parameter. | ||
156 | * This function builds this frame and sends it to a master ID CONTROL_ID. | 159 | * This function builds this frame and sends it to a master ID CONTROL_ID. |
157 | * The overhead is only 32 bytes since the driver only writes to HW | 160 | * The overhead is only 32 bytes since the driver only writes to HW |
158 | * in 32 byte chunks. | 161 | * in 32 byte chunks. |
159 | */ | 162 | */ |
160 | 163 | static void pti_control_frame_built_and_sent(struct pti_masterchannel *mc, | |
161 | static void pti_control_frame_built_and_sent(struct pti_masterchannel *mc) | 164 | const char *thread_name) |
162 | { | 165 | { |
163 | struct pti_masterchannel mccontrol = {.master = CONTROL_ID, | 166 | struct pti_masterchannel mccontrol = {.master = CONTROL_ID, |
164 | .channel = 0}; | 167 | .channel = 0}; |
168 | const char *thread_name_p; | ||
165 | const char *control_format = "%3d %3d %s"; | 169 | const char *control_format = "%3d %3d %s"; |
166 | u8 control_frame[CONTROL_FRAME_LEN]; | 170 | u8 control_frame[CONTROL_FRAME_LEN]; |
167 | 171 | ||
168 | /* | 172 | if (!thread_name) { |
169 | * Since we access the comm member in current's task_struct, | 173 | /* |
170 | * we only need to be as large as what 'comm' in that | 174 | * Since we access the comm member in current's task_struct, |
171 | * structure is. | 175 | * we only need to be as large as what 'comm' in that |
172 | */ | 176 | * structure is. |
173 | char comm[TASK_COMM_LEN]; | 177 | */ |
178 | char comm[TASK_COMM_LEN]; | ||
174 | 179 | ||
175 | if (!in_interrupt()) | 180 | if (!in_interrupt()) |
176 | get_task_comm(comm, current); | 181 | get_task_comm(comm, current); |
177 | else | 182 | else |
178 | strncpy(comm, "Interrupt", TASK_COMM_LEN); | 183 | strncpy(comm, "Interrupt", TASK_COMM_LEN); |
179 | 184 | ||
180 | /* Absolutely ensure our buffer is zero terminated. */ | 185 | /* Absolutely ensure our buffer is zero terminated. */ |
181 | comm[TASK_COMM_LEN-1] = 0; | 186 | comm[TASK_COMM_LEN-1] = 0; |
187 | thread_name_p = comm; | ||
188 | } else { | ||
189 | thread_name_p = thread_name; | ||
190 | } | ||
182 | 191 | ||
183 | mccontrol.channel = pti_control_channel; | 192 | mccontrol.channel = pti_control_channel; |
184 | pti_control_channel = (pti_control_channel + 1) & 0x7f; | 193 | pti_control_channel = (pti_control_channel + 1) & 0x7f; |
185 | 194 | ||
186 | snprintf(control_frame, CONTROL_FRAME_LEN, control_format, mc->master, | 195 | snprintf(control_frame, CONTROL_FRAME_LEN, control_format, mc->master, |
187 | mc->channel, comm); | 196 | mc->channel, thread_name_p); |
188 | pti_write_to_aperture(&mccontrol, control_frame, strlen(control_frame)); | 197 | pti_write_to_aperture(&mccontrol, control_frame, strlen(control_frame)); |
189 | } | 198 | } |
190 | 199 | ||
@@ -206,18 +215,20 @@ static void pti_write_full_frame_to_aperture(struct pti_masterchannel *mc, | |||
206 | const unsigned char *buf, | 215 | const unsigned char *buf, |
207 | int len) | 216 | int len) |
208 | { | 217 | { |
209 | pti_control_frame_built_and_sent(mc); | 218 | pti_control_frame_built_and_sent(mc, NULL); |
210 | pti_write_to_aperture(mc, (u8 *)buf, len); | 219 | pti_write_to_aperture(mc, (u8 *)buf, len); |
211 | } | 220 | } |
212 | 221 | ||
213 | /** | 222 | /** |
214 | * get_id()- Allocate a master and channel ID. | 223 | * get_id()- Allocate a master and channel ID. |
215 | * | 224 | * |
216 | * @id_array: an array of bits representing what channel | 225 | * @id_array: an array of bits representing what channel |
217 | * id's are allocated for writing. | 226 | * id's are allocated for writing. |
218 | * @max_ids: The max amount of available write IDs to use. | 227 | * @max_ids: The max amount of available write IDs to use. |
219 | * @base_id: The starting SW channel ID, based on the Intel | 228 | * @base_id: The starting SW channel ID, based on the Intel |
220 | * PTI arch. | 229 | * PTI arch. |
230 | * @thread_name: The thread name associated with the master / channel or | ||
231 | * 'NULL' if using the 'current' global variable. | ||
221 | * | 232 | * |
222 | * Returns: | 233 | * Returns: |
223 | * pti_masterchannel struct with master, channel ID address | 234 | * pti_masterchannel struct with master, channel ID address |
@@ -227,7 +238,10 @@ static void pti_write_full_frame_to_aperture(struct pti_masterchannel *mc, | |||
227 | * channel id. The bit is one if the id is taken and 0 if free. For | 238 | * channel id. The bit is one if the id is taken and 0 if free. For |
228 | * every master there are 128 channel id's. | 239 | * every master there are 128 channel id's. |
229 | */ | 240 | */ |
230 | static struct pti_masterchannel *get_id(u8 *id_array, int max_ids, int base_id) | 241 | static struct pti_masterchannel *get_id(u8 *id_array, |
242 | int max_ids, | ||
243 | int base_id, | ||
244 | const char *thread_name) | ||
231 | { | 245 | { |
232 | struct pti_masterchannel *mc; | 246 | struct pti_masterchannel *mc; |
233 | int i, j, mask; | 247 | int i, j, mask; |
@@ -257,7 +271,7 @@ static struct pti_masterchannel *get_id(u8 *id_array, int max_ids, int base_id) | |||
257 | mc->master = base_id; | 271 | mc->master = base_id; |
258 | mc->channel = ((i & 0xf)<<3) + j; | 272 | mc->channel = ((i & 0xf)<<3) + j; |
259 | /* write new master Id / channel Id allocation to channel control */ | 273 | /* write new master Id / channel Id allocation to channel control */ |
260 | pti_control_frame_built_and_sent(mc); | 274 | pti_control_frame_built_and_sent(mc, thread_name); |
261 | return mc; | 275 | return mc; |
262 | } | 276 | } |
263 | 277 | ||
@@ -273,18 +287,22 @@ static struct pti_masterchannel *get_id(u8 *id_array, int max_ids, int base_id) | |||
273 | * a master, channel ID address | 287 | * a master, channel ID address |
274 | * to write to PTI HW. | 288 | * to write to PTI HW. |
275 | * | 289 | * |
276 | * @type: 0- request Application master, channel aperture ID write address. | 290 | * @type: 0- request Application master, channel aperture ID |
277 | * 1- request OS master, channel aperture ID write | 291 | * write address. |
278 | * address. | 292 | * 1- request OS master, channel aperture ID write |
279 | * 2- request Modem master, channel aperture ID | 293 | * address. |
280 | * write address. | 294 | * 2- request Modem master, channel aperture ID |
281 | * Other values, error. | 295 | * write address. |
296 | * Other values, error. | ||
297 | * @thread_name: The thread name associated with the master / channel or | ||
298 | * 'NULL' if using the 'current' global variable. | ||
282 | * | 299 | * |
283 | * Returns: | 300 | * Returns: |
284 | * pti_masterchannel struct | 301 | * pti_masterchannel struct |
285 | * 0 for error | 302 | * 0 for error |
286 | */ | 303 | */ |
287 | struct pti_masterchannel *pti_request_masterchannel(u8 type) | 304 | struct pti_masterchannel *pti_request_masterchannel(u8 type, |
305 | const char *thread_name) | ||
288 | { | 306 | { |
289 | struct pti_masterchannel *mc; | 307 | struct pti_masterchannel *mc; |
290 | 308 | ||
@@ -293,15 +311,18 @@ struct pti_masterchannel *pti_request_masterchannel(u8 type) | |||
293 | switch (type) { | 311 | switch (type) { |
294 | 312 | ||
295 | case 0: | 313 | case 0: |
296 | mc = get_id(drv_data->ia_app, MAX_APP_IDS, APP_BASE_ID); | 314 | mc = get_id(drv_data->ia_app, MAX_APP_IDS, |
315 | APP_BASE_ID, thread_name); | ||
297 | break; | 316 | break; |
298 | 317 | ||
299 | case 1: | 318 | case 1: |
300 | mc = get_id(drv_data->ia_os, MAX_OS_IDS, OS_BASE_ID); | 319 | mc = get_id(drv_data->ia_os, MAX_OS_IDS, |
320 | OS_BASE_ID, thread_name); | ||
301 | break; | 321 | break; |
302 | 322 | ||
303 | case 2: | 323 | case 2: |
304 | mc = get_id(drv_data->ia_modem, MAX_MODEM_IDS, MODEM_BASE_ID); | 324 | mc = get_id(drv_data->ia_modem, MAX_MODEM_IDS, |
325 | MODEM_BASE_ID, thread_name); | ||
305 | break; | 326 | break; |
306 | default: | 327 | default: |
307 | mc = NULL; | 328 | mc = NULL; |
@@ -472,9 +493,9 @@ static int pti_tty_install(struct tty_driver *driver, struct tty_struct *tty) | |||
472 | return -ENOMEM; | 493 | return -ENOMEM; |
473 | 494 | ||
474 | if (idx == PTITTY_MINOR_START) | 495 | if (idx == PTITTY_MINOR_START) |
475 | pti_tty_data->mc = pti_request_masterchannel(0); | 496 | pti_tty_data->mc = pti_request_masterchannel(0, NULL); |
476 | else | 497 | else |
477 | pti_tty_data->mc = pti_request_masterchannel(2); | 498 | pti_tty_data->mc = pti_request_masterchannel(2, NULL); |
478 | 499 | ||
479 | if (pti_tty_data->mc == NULL) { | 500 | if (pti_tty_data->mc == NULL) { |
480 | kfree(pti_tty_data); | 501 | kfree(pti_tty_data); |
@@ -563,7 +584,7 @@ static int pti_char_open(struct inode *inode, struct file *filp) | |||
563 | * before assigning the value to filp->private_data. | 584 | * before assigning the value to filp->private_data. |
564 | * Slightly easier to debug if this driver needs debugging. | 585 | * Slightly easier to debug if this driver needs debugging. |
565 | */ | 586 | */ |
566 | mc = pti_request_masterchannel(0); | 587 | mc = pti_request_masterchannel(0, NULL); |
567 | if (mc == NULL) | 588 | if (mc == NULL) |
568 | return -ENOMEM; | 589 | return -ENOMEM; |
569 | filp->private_data = mc; | 590 | filp->private_data = mc; |