[PATCH 20/40] USB: FTDI Elan driver: Convert ftdi->u132_lock to mutex
Greg Kroah-Hartman <[email protected]>
| Newsgroups | gmane.linux.usb.devel |
|---|---|
| Message-ID | <[email protected]> |
From: Matthias Kaehlcke <[email protected]> FTDI Elan driver: Convert the semaphore ftdi->u132_lock to the mutex API Signed-off-by: Matthias Kaehlcke <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/usb/misc/ftdi-elan.c | 130 +++++++++++++++++++++--------------------- 1 files changed, 65 insertions(+), 65 deletions(-) diff --git a/drivers/usb/misc/ftdi-elan.c b/drivers/usb/misc/ftdi-elan.c index d3d8cd6..148b7fe 100644 --- a/drivers/usb/misc/ftdi-elan.c +++ b/drivers/usb/misc/ftdi-elan.c @@ -147,7 +147,7 @@ struct u132_target { /* Structure to hold all of our device specific stuff*/ struct usb_ftdi { struct list_head ftdi_list; - struct semaphore u132_lock; + struct mutex u132_lock; int command_next; int command_head; struct u132_command command[COMMAND_SIZE]; @@ -330,39 +330,39 @@ static int ftdi_elan_hcd_init(struct usb_ftdi *ftdi) static void ftdi_elan_abandon_completions(struct usb_ftdi *ftdi) { - down(&ftdi->u132_lock); + mutex_lock(&ftdi->u132_lock); while (ftdi->respond_next > ftdi->respond_head) { struct u132_respond *respond = &ftdi->respond[RESPOND_MASK & ftdi->respond_head++]; *respond->result = -ESHUTDOWN; *respond->value = 0; complete(&respond->wait_completion); - } up(&ftdi->u132_lock); + } mutex_unlock(&ftdi->u132_lock); } static void ftdi_elan_abandon_targets(struct usb_ftdi *ftdi) { int ed_number = 4; - down(&ftdi->u132_lock); + mutex_lock(&ftdi->u132_lock); while (ed_number-- > 0) { struct u132_target *target = &ftdi->target[ed_number]; if (target->active == 1) { target->condition_code = TD_DEVNOTRESP; - up(&ftdi->u132_lock); + mutex_unlock(&ftdi->u132_lock); ftdi_elan_do_callback(ftdi, target, NULL, 0); - down(&ftdi->u132_lock); + mutex_lock(&ftdi->u132_lock); } } ftdi->recieved = 0; ftdi->expected = 4; ftdi->ed_found = 0; - up(&ftdi->u132_lock); + mutex_unlock(&ftdi->u132_lock); } static void ftdi_elan_flush_targets(struct usb_ftdi *ftdi) { int ed_number = 4; - down(&ftdi->u132_lock); + mutex_lock(&ftdi->u132_lock); while (ed_number-- > 0) { struct u132_target *target = &ftdi->target[ed_number]; target->abandoning = 1; @@ -382,9 +382,9 @@ static void ftdi_elan_flush_targets(struct usb_ftdi *ftdi) ftdi->command_next += 1; ftdi_elan_kick_command_queue(ftdi); } else { - up(&ftdi->u132_lock); + mutex_unlock(&ftdi->u132_lock); msleep(100); - down(&ftdi->u132_lock); + mutex_lock(&ftdi->u132_lock); goto wait_1; } } @@ -404,9 +404,9 @@ static void ftdi_elan_flush_targets(struct usb_ftdi *ftdi) ftdi->command_next += 1; ftdi_elan_kick_command_queue(ftdi); } else { - up(&ftdi->u132_lock); + mutex_unlock(&ftdi->u132_lock); msleep(100); - down(&ftdi->u132_lock); + mutex_lock(&ftdi->u132_lock); goto wait_2; } } @@ -414,13 +414,13 @@ static void ftdi_elan_flush_targets(struct usb_ftdi *ftdi) ftdi->recieved = 0; ftdi->expected = 4; ftdi->ed_found = 0; - up(&ftdi->u132_lock); + mutex_unlock(&ftdi->u132_lock); } static void ftdi_elan_cancel_targets(struct usb_ftdi *ftdi) { int ed_number = 4; - down(&ftdi->u132_lock); + mutex_lock(&ftdi->u132_lock); while (ed_number-- > 0) { struct u132_target *target = &ftdi->target[ed_number]; target->abandoning = 1; @@ -440,9 +440,9 @@ static void ftdi_elan_cancel_targets(struct usb_ftdi *ftdi) ftdi->command_next += 1; ftdi_elan_kick_command_queue(ftdi); } else { - up(&ftdi->u132_lock); + mutex_unlock(&ftdi->u132_lock); msleep(100); - down(&ftdi->u132_lock); + mutex_lock(&ftdi->u132_lock); goto wait; } } @@ -450,7 +450,7 @@ static void ftdi_elan_cancel_targets(struct usb_ftdi *ftdi) ftdi->recieved = 0; ftdi->expected = 4; ftdi->ed_found = 0; - up(&ftdi->u132_lock); + mutex_unlock(&ftdi->u132_lock); } static void ftdi_elan_kick_command_queue(struct usb_ftdi *ftdi) @@ -886,14 +886,14 @@ static char *have_ed_set_response(struct usb_ftdi *ftdi, char *b) { int payload = (ed_length >> 0) & 0x07FF; - down(&ftdi->u132_lock); + mutex_lock(&ftdi->u132_lock); target->actual = 0; target->non_null = (ed_length >> 15) & 0x0001; target->repeat_number = (ed_length >> 11) & 0x000F; if (ed_type == 0x02) { if (payload == 0 || target->abandoning > 0) { target->abandoning = 0; - up(&ftdi->u132_lock); + mutex_unlock(&ftdi->u132_lock); ftdi_elan_do_callback(ftdi, target, 4 + ftdi->response, payload); ftdi->recieved = 0; @@ -903,13 +903,13 @@ static char *have_ed_set_response(struct usb_ftdi *ftdi, } else { ftdi->expected = 4 + payload; ftdi->ed_found = 1; - up(&ftdi->u132_lock); + mutex_unlock(&ftdi->u132_lock); return b; } } else if (ed_type == 0x03) { if (payload == 0 || target->abandoning > 0) { target->abandoning = 0; - up(&ftdi->u132_lock); + mutex_unlock(&ftdi->u132_lock); ftdi_elan_do_callback(ftdi, target, 4 + ftdi->response, payload); ftdi->recieved = 0; @@ -919,12 +919,12 @@ static char *have_ed_set_response(struct usb_ftdi *ftdi, } else { ftdi->expected = 4 + payload; ftdi->ed_found = 1; - up(&ftdi->u132_lock); + mutex_unlock(&ftdi->u132_lock); return b; } } else if (ed_type == 0x01) { target->abandoning = 0; - up(&ftdi->u132_lock); + mutex_unlock(&ftdi->u132_lock); ftdi_elan_do_callback(ftdi, target, 4 + ftdi->response, payload); ftdi->recieved = 0; @@ -933,7 +933,7 @@ static char *have_ed_set_response(struct usb_ftdi *ftdi, return ftdi->response; } else { target->abandoning = 0; - up(&ftdi->u132_lock); + mutex_unlock(&ftdi->u132_lock); ftdi_elan_do_callback(ftdi, target, 4 + ftdi->response, payload); ftdi->recieved = 0; @@ -947,12 +947,12 @@ static char *have_ed_get_response(struct usb_ftdi *ftdi, struct u132_target *target, u16 ed_length, int ed_number, int ed_type, char *b) { - down(&ftdi->u132_lock); + mutex_lock(&ftdi->u132_lock); target->condition_code = TD_DEVNOTRESP; target->actual = (ed_length >> 0) & 0x01FF; target->non_null = (ed_length >> 15) & 0x0001; target->repeat_number = (ed_length >> 11) & 0x000F; - up(&ftdi->u132_lock); + mutex_unlock(&ftdi->u132_lock); if (target->active) ftdi_elan_do_callback(ftdi, target, NULL, 0); target->abandoning = 0; @@ -1278,7 +1278,7 @@ static int ftdi_elan_write_reg(struct usb_ftdi *ftdi, u32 data) return -ENODEV; } else { int command_size; - down(&ftdi->u132_lock); + mutex_lock(&ftdi->u132_lock); command_size = ftdi->command_next - ftdi->command_head; if (command_size < COMMAND_SIZE) { struct u132_command *command = &ftdi->command[ @@ -1292,10 +1292,10 @@ static int ftdi_elan_write_reg(struct usb_ftdi *ftdi, u32 data) command->buffer = &command->value; ftdi->command_next += 1; ftdi_elan_kick_command_queue(ftdi); - up(&ftdi->u132_lock); + mutex_unlock(&ftdi->u132_lock); return 0; } else { - up(&ftdi->u132_lock); + mutex_unlock(&ftdi->u132_lock); msleep(100); goto wait; } @@ -1310,7 +1310,7 @@ static int ftdi_elan_write_config(struct usb_ftdi *ftdi, int config_offset, return -ENODEV; } else { int command_size; - down(&ftdi->u132_lock); + mutex_lock(&ftdi->u132_lock); command_size = ftdi->command_next - ftdi->command_head; if (command_size < COMMAND_SIZE) { struct u132_command *command = &ftdi->command[ @@ -1324,10 +1324,10 @@ static int ftdi_elan_write_config(struct usb_ftdi *ftdi, int config_offset, command->buffer = &command->value; ftdi->command_next += 1; ftdi_elan_kick_command_queue(ftdi); - up(&ftdi->u132_lock); + mutex_unlock(&ftdi->u132_lock); return 0; } else { - up(&ftdi->u132_lock); + mutex_unlock(&ftdi->u132_lock); msleep(100); goto wait; } @@ -1342,7 +1342,7 @@ static int ftdi_elan_write_pcimem(struct usb_ftdi *ftdi, int mem_offset, return -ENODEV; } else { int command_size; - down(&ftdi->u132_lock); + mutex_lock(&ftdi->u132_lock); command_size = ftdi->command_next - ftdi->command_head; if (command_size < COMMAND_SIZE) { struct u132_command *command = &ftdi->command[ @@ -1356,10 +1356,10 @@ static int ftdi_elan_write_pcimem(struct usb_ftdi *ftdi, int mem_offset, command->buffer = &command->value; ftdi->command_next += 1; ftdi_elan_kick_command_queue(ftdi); - up(&ftdi->u132_lock); + mutex_unlock(&ftdi->u132_lock); return 0; } else { - up(&ftdi->u132_lock); + mutex_unlock(&ftdi->u132_lock); msleep(100); goto wait; } @@ -1382,7 +1382,7 @@ static int ftdi_elan_read_reg(struct usb_ftdi *ftdi, u32 *data) } else { int command_size; int respond_size; - down(&ftdi->u132_lock); + mutex_lock(&ftdi->u132_lock); command_size = ftdi->command_next - ftdi->command_head; respond_size = ftdi->respond_next - ftdi->respond_head; if (command_size < COMMAND_SIZE && respond_size < RESPOND_SIZE) @@ -1405,11 +1405,11 @@ static int ftdi_elan_read_reg(struct usb_ftdi *ftdi, u32 *data) ftdi->command_next += 1; ftdi->respond_next += 1; ftdi_elan_kick_command_queue(ftdi); - up(&ftdi->u132_lock); + mutex_unlock(&ftdi->u132_lock); wait_for_completion(&respond->wait_completion); return result; } else { - up(&ftdi->u132_lock); + mutex_unlock(&ftdi->u132_lock); msleep(100); goto wait; } @@ -1425,7 +1425,7 @@ static int ftdi_elan_read_config(struct usb_ftdi *ftdi, int config_offset, } else { int command_size; int respond_size; - down(&ftdi->u132_lock); + mutex_lock(&ftdi->u132_lock); command_size = ftdi->command_next - ftdi->command_head; respond_size = ftdi->respond_next - ftdi->respond_head; if (command_size < COMMAND_SIZE && respond_size < RESPOND_SIZE) @@ -1449,11 +1449,11 @@ static int ftdi_elan_read_config(struct usb_ftdi *ftdi, int config_offset, ftdi->command_next += 1; ftdi->respond_next += 1; ftdi_elan_kick_command_queue(ftdi); - up(&ftdi->u132_lock); + mutex_unlock(&ftdi->u132_lock); wait_for_completion(&respond->wait_completion); return result; } else { - up(&ftdi->u132_lock); + mutex_unlock(&ftdi->u132_lock); msleep(100); goto wait; } @@ -1469,7 +1469,7 @@ static int ftdi_elan_read_pcimem(struct usb_ftdi *ftdi, int mem_offset, } else { int command_size; int respond_size; - down(&ftdi->u132_lock); + mutex_lock(&ftdi->u132_lock); command_size = ftdi->command_next - ftdi->command_head; respond_size = ftdi->respond_next - ftdi->respond_head; if (command_size < COMMAND_SIZE && respond_size < RESPOND_SIZE) @@ -1493,11 +1493,11 @@ static int ftdi_elan_read_pcimem(struct usb_ftdi *ftdi, int mem_offset, ftdi->command_next += 1; ftdi->respond_next += 1; ftdi_elan_kick_command_queue(ftdi); - up(&ftdi->u132_lock); + mutex_unlock(&ftdi->u132_lock); wait_for_completion(&respond->wait_completion); return result; } else { - up(&ftdi->u132_lock); + mutex_unlock(&ftdi->u132_lock); msleep(100); goto wait; } @@ -1529,7 +1529,7 @@ static int ftdi_elan_edset_setup(struct usb_ftdi *ftdi, u8 ed_number, return -ENODEV; } else { int command_size; - down(&ftdi->u132_lock); + mutex_lock(&ftdi->u132_lock); command_size = ftdi->command_next - ftdi->command_head; if (command_size < COMMAND_SIZE) { struct u132_target *target = &ftdi->target[ed]; @@ -1550,10 +1550,10 @@ static int ftdi_elan_edset_setup(struct usb_ftdi *ftdi, u8 ed_number, target->active = 1; ftdi->command_next += 1; ftdi_elan_kick_command_queue(ftdi); - up(&ftdi->u132_lock); + mutex_unlock(&ftdi->u132_lock); return 0; } else { - up(&ftdi->u132_lock); + mutex_unlock(&ftdi->u132_lock); msleep(100); goto wait; } @@ -1586,7 +1586,7 @@ static int ftdi_elan_edset_input(struct usb_ftdi *ftdi, u8 ed_number, return -ENODEV; } else { int command_size; - down(&ftdi->u132_lock); + mutex_lock(&ftdi->u132_lock); command_size = ftdi->command_next - ftdi->command_head; if (command_size < COMMAND_SIZE) { struct u132_target *target = &ftdi->target[ed]; @@ -1615,10 +1615,10 @@ static int ftdi_elan_edset_input(struct usb_ftdi *ftdi, u8 ed_number, target->active = 1; ftdi->command_next += 1; ftdi_elan_kick_command_queue(ftdi); - up(&ftdi->u132_lock); + mutex_unlock(&ftdi->u132_lock); return 0; } else { - up(&ftdi->u132_lock); + mutex_unlock(&ftdi->u132_lock); msleep(100); goto wait; } @@ -1651,7 +1651,7 @@ static int ftdi_elan_edset_empty(struct usb_ftdi *ftdi, u8 ed_number, return -ENODEV; } else { int command_size; - down(&ftdi->u132_lock); + mutex_lock(&ftdi->u132_lock); command_size = ftdi->command_next - ftdi->command_head; if (command_size < COMMAND_SIZE) { struct u132_target *target = &ftdi->target[ed]; @@ -1672,10 +1672,10 @@ static int ftdi_elan_edset_empty(struct usb_ftdi *ftdi, u8 ed_number, target->active = 1; ftdi->command_next += 1; ftdi_elan_kick_command_queue(ftdi); - up(&ftdi->u132_lock); + mutex_unlock(&ftdi->u132_lock); return 0; } else { - up(&ftdi->u132_lock); + mutex_unlock(&ftdi->u132_lock); msleep(100); goto wait; } @@ -1708,7 +1708,7 @@ static int ftdi_elan_edset_output(struct usb_ftdi *ftdi, u8 ed_number, return -ENODEV; } else { int command_size; - down(&ftdi->u132_lock); + mutex_lock(&ftdi->u132_lock); command_size = ftdi->command_next - ftdi->command_head; if (command_size < COMMAND_SIZE) { u8 *b; @@ -1751,10 +1751,10 @@ static int ftdi_elan_edset_output(struct usb_ftdi *ftdi, u8 ed_number, target->active = 1; ftdi->command_next += 1; ftdi_elan_kick_command_queue(ftdi); - up(&ftdi->u132_lock); + mutex_unlock(&ftdi->u132_lock); return 0; } else { - up(&ftdi->u132_lock); + mutex_unlock(&ftdi->u132_lock); msleep(100); goto wait; } @@ -1787,7 +1787,7 @@ static int ftdi_elan_edset_single(struct usb_ftdi *ftdi, u8 ed_number, return -ENODEV; } else { int command_size; - down(&ftdi->u132_lock); + mutex_lock(&ftdi->u132_lock); command_size = ftdi->command_next - ftdi->command_head; if (command_size < COMMAND_SIZE) { int remaining_length = urb->transfer_buffer_length - @@ -1816,10 +1816,10 @@ static int ftdi_elan_edset_single(struct usb_ftdi *ftdi, u8 ed_number, target->active = 1; ftdi->command_next += 1; ftdi_elan_kick_command_queue(ftdi); - up(&ftdi->u132_lock); + mutex_unlock(&ftdi->u132_lock); return 0; } else { - up(&ftdi->u132_lock); + mutex_unlock(&ftdi->u132_lock); msleep(100); goto wait; } @@ -1849,9 +1849,9 @@ static int ftdi_elan_edset_flush(struct usb_ftdi *ftdi, u8 ed_number, return -ENODEV; } else { struct u132_target *target = &ftdi->target[ed]; - down(&ftdi->u132_lock); + mutex_lock(&ftdi->u132_lock); if (target->abandoning > 0) { - up(&ftdi->u132_lock); + mutex_unlock(&ftdi->u132_lock); return 0; } else { target->abandoning = 1; @@ -1873,13 +1873,13 @@ static int ftdi_elan_edset_flush(struct usb_ftdi *ftdi, u8 ed_number, ftdi->command_next += 1; ftdi_elan_kick_command_queue(ftdi); } else { - up(&ftdi->u132_lock); + mutex_unlock(&ftdi->u132_lock); msleep(100); - down(&ftdi->u132_lock); + mutex_lock(&ftdi->u132_lock); goto wait_1; } } - up(&ftdi->u132_lock); + mutex_unlock(&ftdi->u132_lock); return 0; } } @@ -2793,7 +2793,7 @@ static int ftdi_elan_probe(struct usb_interface *interface, init_MUTEX(&ftdi->sw_lock); ftdi->udev = usb_get_dev(interface_to_usbdev(interface)); ftdi->interface = interface; - init_MUTEX(&ftdi->u132_lock); + mutex_init(&ftdi->u132_lock); ftdi->expected = 4; iface_desc = interface->cur_altsetting; for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) { -- 1.5.3.4 ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. 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