diff options
Diffstat (limited to 'net/irda/qos.c')
| -rw-r--r-- | net/irda/qos.c | 150 |
1 files changed, 75 insertions, 75 deletions
diff --git a/net/irda/qos.c b/net/irda/qos.c index 95a69c013ee8..349012c926b7 100644 --- a/net/irda/qos.c +++ b/net/irda/qos.c @@ -1,5 +1,5 @@ /********************************************************************* - * + * * Filename: qos.c * Version: 1.0 * Description: IrLAP QoS parameter negotiation @@ -8,26 +8,26 @@ * Created at: Tue Sep 9 00:00:26 1997 * Modified at: Sun Jan 30 14:29:16 2000 * Modified by: Dag Brattli <dagb@cs.uit.no> - * - * Copyright (c) 1998-2000 Dag Brattli <dagb@cs.uit.no>, + * + * Copyright (c) 1998-2000 Dag Brattli <dagb@cs.uit.no>, * All Rights Reserved. * Copyright (c) 2000-2001 Jean Tourrilhes <jt@hpl.hp.com> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. - * + * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA - * + * ********************************************************************/ #include <asm/byteorder.h> @@ -84,16 +84,16 @@ unsigned sysctl_max_tx_data_size = 2042; unsigned sysctl_max_tx_window = 7; static int irlap_param_baud_rate(void *instance, irda_param_t *param, int get); -static int irlap_param_link_disconnect(void *instance, irda_param_t *parm, +static int irlap_param_link_disconnect(void *instance, irda_param_t *parm, int get); -static int irlap_param_max_turn_time(void *instance, irda_param_t *param, +static int irlap_param_max_turn_time(void *instance, irda_param_t *param, int get); static int irlap_param_data_size(void *instance, irda_param_t *param, int get); -static int irlap_param_window_size(void *instance, irda_param_t *param, +static int irlap_param_window_size(void *instance, irda_param_t *param, int get); -static int irlap_param_additional_bofs(void *instance, irda_param_t *parm, +static int irlap_param_additional_bofs(void *instance, irda_param_t *parm, int get); -static int irlap_param_min_turn_time(void *instance, irda_param_t *param, +static int irlap_param_min_turn_time(void *instance, irda_param_t *param, int get); #ifndef CONFIG_IRDA_DYNAMIC_WINDOW @@ -101,7 +101,7 @@ static __u32 irlap_requested_line_capacity(struct qos_info *qos); #endif static __u32 min_turn_times[] = { 10000, 5000, 1000, 500, 100, 50, 10, 0 }; /* us */ -static __u32 baud_rates[] = { 2400, 9600, 19200, 38400, 57600, 115200, 576000, +static __u32 baud_rates[] = { 2400, 9600, 19200, 38400, 57600, 115200, 576000, 1152000, 4000000, 16000000 }; /* bps */ static __u32 data_sizes[] = { 64, 128, 256, 512, 1024, 2048 }; /* bytes */ static __u32 add_bofs[] = { 48, 24, 12, 5, 3, 2, 1, 0 }; /* bytes */ @@ -165,7 +165,7 @@ static pi_param_info_t irlap_param_info = { pi_major_call_table, 2, 0x7f, 7 }; static inline int value_index(__u32 value, __u32 *array, int size) { int i; - + for (i=0; i < size; i++) if (array[i] == value) break; @@ -178,7 +178,7 @@ static inline int value_index(__u32 value, __u32 *array, int size) * Returns value to index in array, easy! * */ -static inline __u32 index_value(int index, __u32 *array) +static inline __u32 index_value(int index, __u32 *array) { return array[index]; } @@ -189,7 +189,7 @@ static inline __u32 index_value(int index, __u32 *array) * Returns index to most significant bit (MSB) in word * */ -static int msb_index (__u16 word) +static int msb_index (__u16 word) { __u16 msb = 0x8000; int index = 15; /* Current MSB */ @@ -298,12 +298,12 @@ void irda_qos_compute_intersection(struct qos_info *qos, struct qos_info *new) * * The purpose of this function is for layers and drivers to be able to * set the maximum QoS possible and then "and in" their own limitations - * + * */ void irda_init_max_qos_capabilies(struct qos_info *qos) { int i; - /* + /* * These are the maximum supported values as specified on pages * 39-43 in IrLAP */ @@ -361,25 +361,25 @@ static void irlap_adjust_qos_settings(struct qos_info *qos) qos->min_turn_time.value = sysctl_min_tx_turn_time; } - /* + /* * Not allowed to use a max turn time less than 500 ms if the baudrate * is less than 115200 */ - if ((qos->baud_rate.value < 115200) && + if ((qos->baud_rate.value < 115200) && (qos->max_turn_time.value < 500)) { - IRDA_DEBUG(0, + IRDA_DEBUG(0, "%s(), adjusting max turn time from %d to 500 ms\n", __FUNCTION__, qos->max_turn_time.value); qos->max_turn_time.value = 500; } - + /* - * The data size must be adjusted according to the baud rate and max + * The data size must be adjusted according to the baud rate and max * turn time */ index = value_index(qos->data_size.value, data_sizes, 6); - line_capacity = irlap_max_line_capacity(qos->baud_rate.value, + line_capacity = irlap_max_line_capacity(qos->baud_rate.value, qos->max_turn_time.value); #ifdef CONFIG_IRDA_DYNAMIC_WINDOW @@ -427,32 +427,32 @@ static void irlap_adjust_qos_settings(struct qos_info *qos) * We just set the QoS capabilities for the peer station * */ -int irlap_qos_negotiate(struct irlap_cb *self, struct sk_buff *skb) +int irlap_qos_negotiate(struct irlap_cb *self, struct sk_buff *skb) { int ret; - - ret = irda_param_extract_all(self, skb->data, skb->len, + + ret = irda_param_extract_all(self, skb->data, skb->len, &irlap_param_info); - + /* Convert the negotiated bits to values */ irda_qos_bits_to_value(&self->qos_tx); irda_qos_bits_to_value(&self->qos_rx); irlap_adjust_qos_settings(&self->qos_tx); - IRDA_DEBUG(2, "Setting BAUD_RATE to %d bps.\n", + IRDA_DEBUG(2, "Setting BAUD_RATE to %d bps.\n", self->qos_tx.baud_rate.value); IRDA_DEBUG(2, "Setting DATA_SIZE to %d bytes\n", self->qos_tx.data_size.value); - IRDA_DEBUG(2, "Setting WINDOW_SIZE to %d\n", + IRDA_DEBUG(2, "Setting WINDOW_SIZE to %d\n", self->qos_tx.window_size.value); - IRDA_DEBUG(2, "Setting XBOFS to %d\n", + IRDA_DEBUG(2, "Setting XBOFS to %d\n", self->qos_tx.additional_bofs.value); IRDA_DEBUG(2, "Setting MAX_TURN_TIME to %d ms.\n", self->qos_tx.max_turn_time.value); IRDA_DEBUG(2, "Setting MIN_TURN_TIME to %d usecs.\n", self->qos_tx.min_turn_time.value); - IRDA_DEBUG(2, "Setting LINK_DISC to %d secs.\n", + IRDA_DEBUG(2, "Setting LINK_DISC to %d secs.\n", self->qos_tx.link_disc_time.value); return ret; } @@ -463,55 +463,55 @@ int irlap_qos_negotiate(struct irlap_cb *self, struct sk_buff *skb) * Insert QoS negotiaion pararameters into frame * */ -int irlap_insert_qos_negotiation_params(struct irlap_cb *self, +int irlap_insert_qos_negotiation_params(struct irlap_cb *self, struct sk_buff *skb) { int ret; /* Insert data rate */ - ret = irda_param_insert(self, PI_BAUD_RATE, skb->tail, + ret = irda_param_insert(self, PI_BAUD_RATE, skb->tail, skb_tailroom(skb), &irlap_param_info); if (ret < 0) return ret; skb_put(skb, ret); /* Insert max turnaround time */ - ret = irda_param_insert(self, PI_MAX_TURN_TIME, skb->tail, + ret = irda_param_insert(self, PI_MAX_TURN_TIME, skb->tail, skb_tailroom(skb), &irlap_param_info); if (ret < 0) return ret; skb_put(skb, ret); /* Insert data size */ - ret = irda_param_insert(self, PI_DATA_SIZE, skb->tail, + ret = irda_param_insert(self, PI_DATA_SIZE, skb->tail, skb_tailroom(skb), &irlap_param_info); if (ret < 0) return ret; skb_put(skb, ret); /* Insert window size */ - ret = irda_param_insert(self, PI_WINDOW_SIZE, skb->tail, + ret = irda_param_insert(self, PI_WINDOW_SIZE, skb->tail, skb_tailroom(skb), &irlap_param_info); if (ret < 0) return ret; skb_put(skb, ret); /* Insert additional BOFs */ - ret = irda_param_insert(self, PI_ADD_BOFS, skb->tail, + ret = irda_param_insert(self, PI_ADD_BOFS, skb->tail, skb_tailroom(skb), &irlap_param_info); if (ret < 0) return ret; skb_put(skb, ret); /* Insert minimum turnaround time */ - ret = irda_param_insert(self, PI_MIN_TURN_TIME, skb->tail, + ret = irda_param_insert(self, PI_MIN_TURN_TIME, skb->tail, skb_tailroom(skb), &irlap_param_info); if (ret < 0) return ret; skb_put(skb, ret); /* Insert link disconnect/threshold time */ - ret = irda_param_insert(self, PI_LINK_DISC, skb->tail, + ret = irda_param_insert(self, PI_LINK_DISC, skb->tail, skb_tailroom(skb), &irlap_param_info); if (ret < 0) return ret; @@ -537,12 +537,12 @@ static int irlap_param_baud_rate(void *instance, irda_param_t *param, int get) if (get) { param->pv.i = self->qos_rx.baud_rate.bits; - IRDA_DEBUG(2, "%s(), baud rate = 0x%02x\n", - __FUNCTION__, param->pv.i); + IRDA_DEBUG(2, "%s(), baud rate = 0x%02x\n", + __FUNCTION__, param->pv.i); } else { - /* + /* * Stations must agree on baud rate, so calculate - * intersection + * intersection */ IRDA_DEBUG(2, "Requested BAUD_RATE: 0x%04x\n", (__u16) param->pv.i); final = (__u16) param->pv.i & self->qos_rx.baud_rate.bits; @@ -558,24 +558,24 @@ static int irlap_param_baud_rate(void *instance, irda_param_t *param, int get) /* * Function irlap_param_link_disconnect (instance, param, get) * - * Negotiate link disconnect/threshold time. + * Negotiate link disconnect/threshold time. * */ -static int irlap_param_link_disconnect(void *instance, irda_param_t *param, +static int irlap_param_link_disconnect(void *instance, irda_param_t *param, int get) { __u16 final; - + struct irlap_cb *self = (struct irlap_cb *) instance; - + IRDA_ASSERT(self != NULL, return -1;); IRDA_ASSERT(self->magic == LAP_MAGIC, return -1;); - + if (get) param->pv.i = self->qos_rx.link_disc_time.bits; else { - /* - * Stations must agree on link disconnect/threshold + /* + * Stations must agree on link disconnect/threshold * time. */ IRDA_DEBUG(2, "LINK_DISC: %02x\n", (__u8) param->pv.i); @@ -595,14 +595,14 @@ static int irlap_param_link_disconnect(void *instance, irda_param_t *param, * will be negotiated independently for each station * */ -static int irlap_param_max_turn_time(void *instance, irda_param_t *param, +static int irlap_param_max_turn_time(void *instance, irda_param_t *param, int get) { struct irlap_cb *self = (struct irlap_cb *) instance; - + IRDA_ASSERT(self != NULL, return -1;); IRDA_ASSERT(self->magic == LAP_MAGIC, return -1;); - + if (get) param->pv.i = self->qos_rx.max_turn_time.bits; else @@ -621,10 +621,10 @@ static int irlap_param_max_turn_time(void *instance, irda_param_t *param, static int irlap_param_data_size(void *instance, irda_param_t *param, int get) { struct irlap_cb *self = (struct irlap_cb *) instance; - + IRDA_ASSERT(self != NULL, return -1;); IRDA_ASSERT(self->magic == LAP_MAGIC, return -1;); - + if (get) param->pv.i = self->qos_rx.data_size.bits; else @@ -640,14 +640,14 @@ static int irlap_param_data_size(void *instance, irda_param_t *param, int get) * will be negotiated independently for each station * */ -static int irlap_param_window_size(void *instance, irda_param_t *param, +static int irlap_param_window_size(void *instance, irda_param_t *param, int get) { struct irlap_cb *self = (struct irlap_cb *) instance; - + IRDA_ASSERT(self != NULL, return -1;); IRDA_ASSERT(self->magic == LAP_MAGIC, return -1;); - + if (get) param->pv.i = self->qos_rx.window_size.bits; else @@ -665,10 +665,10 @@ static int irlap_param_window_size(void *instance, irda_param_t *param, static int irlap_param_additional_bofs(void *instance, irda_param_t *param, int get) { struct irlap_cb *self = (struct irlap_cb *) instance; - + IRDA_ASSERT(self != NULL, return -1;); IRDA_ASSERT(self->magic == LAP_MAGIC, return -1;); - + if (get) param->pv.i = self->qos_rx.additional_bofs.bits; else @@ -683,14 +683,14 @@ static int irlap_param_additional_bofs(void *instance, irda_param_t *param, int * Negotiate the minimum turn around time. This is a type 1 parameter and * will be negotiated independently for each station */ -static int irlap_param_min_turn_time(void *instance, irda_param_t *param, +static int irlap_param_min_turn_time(void *instance, irda_param_t *param, int get) { struct irlap_cb *self = (struct irlap_cb *) instance; - + IRDA_ASSERT(self != NULL, return -1;); IRDA_ASSERT(self->magic == LAP_MAGIC, return -1;); - + if (get) param->pv.i = self->qos_rx.min_turn_time.bits; else @@ -721,9 +721,9 @@ __u32 irlap_max_line_capacity(__u32 speed, __u32 max_turn_time) line_capacity = max_line_capacities[i][j]; - IRDA_DEBUG(2, "%s(), line capacity=%d bytes\n", + IRDA_DEBUG(2, "%s(), line capacity=%d bytes\n", __FUNCTION__, line_capacity); - + return line_capacity; } @@ -749,7 +749,7 @@ void irda_qos_bits_to_value(struct qos_info *qos) int index; IRDA_ASSERT(qos != NULL, return;); - + index = msb_index(qos->baud_rate.bits); qos->baud_rate.value = baud_rates[index]; @@ -761,13 +761,13 @@ void irda_qos_bits_to_value(struct qos_info *qos) index = msb_index(qos->min_turn_time.bits); qos->min_turn_time.value = min_turn_times[index]; - + index = msb_index(qos->max_turn_time.bits); qos->max_turn_time.value = max_turn_times[index]; index = msb_index(qos->link_disc_time.bits); qos->link_disc_time.value = link_disc_times[index]; - + index = msb_index(qos->additional_bofs.bits); qos->additional_bofs.value = add_bofs[index]; } |