Emmanuel Grumbach | c85eb61 | 2011-06-14 10:13:24 +0300 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * |
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| 11 | * it under the terms of version 2 of the GNU General Public License as |
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| 13 | * |
| 14 | * This program is distributed in the hope that it will be useful, but |
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| 17 | * General Public License for more details. |
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| 21 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, |
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| 24 | * The full GNU General Public License is included in this distribution |
| 25 | * in the file called LICENSE.GPL. |
| 26 | * |
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| 28 | * Intel Linux Wireless <ilw@linux.intel.com> |
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| 61 | * |
| 62 | *****************************************************************************/ |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 63 | #ifndef __iwl_trans_h__ |
| 64 | #define __iwl_trans_h__ |
Emmanuel Grumbach | 253a634 | 2011-07-11 07:39:46 -0700 | [diff] [blame] | 65 | |
Emmanuel Grumbach | 87e5666 | 2011-08-25 23:10:50 -0700 | [diff] [blame] | 66 | #include <linux/debugfs.h> |
| 67 | |
Emmanuel Grumbach | 253a634 | 2011-07-11 07:39:46 -0700 | [diff] [blame] | 68 | /*This file includes the declaration that are exported from the transport |
| 69 | * layer */ |
| 70 | |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 71 | struct iwl_priv; |
| 72 | struct iwl_rxon_context; |
| 73 | struct iwl_host_cmd; |
Emmanuel Grumbach | e6bb4c9 | 2011-08-25 23:10:48 -0700 | [diff] [blame] | 74 | struct iwl_shared; |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 75 | |
| 76 | /** |
| 77 | * struct iwl_trans_ops - transport specific operations |
Emmanuel Grumbach | e6bb4c9 | 2011-08-25 23:10:48 -0700 | [diff] [blame] | 78 | * @alloc: allocates the meta data (not the queues themselves) |
| 79 | * @request_irq: requests IRQ - will be called before the FW load in probe flow |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 80 | * @start_device: allocates and inits all the resources for the transport |
| 81 | * layer. |
| 82 | * @prepare_card_hw: claim the ownership on the HW. Will be called during |
| 83 | * probe. |
| 84 | * @tx_start: starts and configures all the Tx fifo - usually done once the fw |
| 85 | * is alive. |
| 86 | * @stop_device:stops the whole device (embedded CPU put to reset) |
| 87 | * @rx_free: frees the rx memory |
| 88 | * @tx_free: frees the tx memory |
| 89 | * @send_cmd:send a host command |
| 90 | * @send_cmd_pdu:send a host command: flags can be CMD_* |
| 91 | * @get_tx_cmd: returns a pointer to a new Tx cmd for the upper layer use |
| 92 | * @tx: send an skb |
Emmanuel Grumbach | a0eaad7 | 2011-08-25 23:11:00 -0700 | [diff] [blame] | 93 | * @reclaim: free packet until ssn. Returns a list of freed packets. |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 94 | * @txq_agg_setup: setup a tx queue for AMPDU - will be called once the HW is |
| 95 | * ready and a successful ADDBA response has been received. |
| 96 | * @txq_agg_disable: de-configure a Tx queue to send AMPDUs |
| 97 | * @kick_nic: remove the RESET from the embedded CPU and let it run |
Emmanuel Grumbach | 0c32576 | 2011-08-25 23:10:53 -0700 | [diff] [blame] | 98 | * @disable_sync_irq: Disable and sync: after this handler returns, it is |
| 99 | * guaranteed that all the ISR / tasklet etc... have finished running |
| 100 | * and the transport layer shall not pass any Rx. |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 101 | * @free: release all the ressource for the transport layer itself such as |
| 102 | * irq, tasklet etc... |
Emmanuel Grumbach | 87e5666 | 2011-08-25 23:10:50 -0700 | [diff] [blame] | 103 | * @dbgfs_register: add the dbgfs files under this directory. Files will be |
| 104 | * automatically deleted. |
Emmanuel Grumbach | 57210f7 | 2011-08-25 23:10:52 -0700 | [diff] [blame] | 105 | * @suspend: stop the device unless WoWLAN is configured |
| 106 | * @resume: resume activity of the device |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 107 | */ |
| 108 | struct iwl_trans_ops { |
| 109 | |
Emmanuel Grumbach | e6bb4c9 | 2011-08-25 23:10:48 -0700 | [diff] [blame] | 110 | struct iwl_trans *(*alloc)(struct iwl_shared *shrd); |
| 111 | int (*request_irq)(struct iwl_trans *iwl_trans); |
Emmanuel Grumbach | 6d8f6ee | 2011-08-25 23:11:06 -0700 | [diff] [blame^] | 112 | int (*start_device)(struct iwl_trans *trans); |
| 113 | int (*prepare_card_hw)(struct iwl_trans *trans); |
| 114 | void (*stop_device)(struct iwl_trans *trans); |
| 115 | void (*tx_start)(struct iwl_trans *trans); |
| 116 | void (*tx_free)(struct iwl_trans *trans); |
Emmanuel Grumbach | 5a878bf | 2011-08-25 23:10:51 -0700 | [diff] [blame] | 117 | void (*rx_free)(struct iwl_trans *trans); |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 118 | |
Emmanuel Grumbach | 6d8f6ee | 2011-08-25 23:11:06 -0700 | [diff] [blame^] | 119 | int (*send_cmd)(struct iwl_trans *trans, struct iwl_host_cmd *cmd); |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 120 | |
Emmanuel Grumbach | 6d8f6ee | 2011-08-25 23:11:06 -0700 | [diff] [blame^] | 121 | int (*send_cmd_pdu)(struct iwl_trans *trans, u8 id, u32 flags, u16 len, |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 122 | const void *data); |
Emmanuel Grumbach | 6d8f6ee | 2011-08-25 23:11:06 -0700 | [diff] [blame^] | 123 | struct iwl_tx_cmd * (*get_tx_cmd)(struct iwl_trans *trans, int txq_id); |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 124 | int (*tx)(struct iwl_priv *priv, struct sk_buff *skb, |
| 125 | struct iwl_tx_cmd *tx_cmd, int txq_id, __le16 fc, bool ampdu, |
| 126 | struct iwl_rxon_context *ctx); |
Emmanuel Grumbach | a0eaad7 | 2011-08-25 23:11:00 -0700 | [diff] [blame] | 127 | void (*reclaim)(struct iwl_trans *trans, int txq_id, int ssn, |
| 128 | u32 status, struct sk_buff_head *skbs); |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 129 | |
| 130 | int (*txq_agg_disable)(struct iwl_priv *priv, u16 txq_id, |
| 131 | u16 ssn_idx, u8 tx_fifo); |
| 132 | void (*txq_agg_setup)(struct iwl_priv *priv, int sta_id, int tid, |
| 133 | int frame_limit); |
| 134 | |
Emmanuel Grumbach | 6d8f6ee | 2011-08-25 23:11:06 -0700 | [diff] [blame^] | 135 | void (*kick_nic)(struct iwl_trans *trans); |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 136 | |
Emmanuel Grumbach | 0c32576 | 2011-08-25 23:10:53 -0700 | [diff] [blame] | 137 | void (*disable_sync_irq)(struct iwl_trans *trans); |
Emmanuel Grumbach | 6d8f6ee | 2011-08-25 23:11:06 -0700 | [diff] [blame^] | 138 | void (*free)(struct iwl_trans *trans); |
Emmanuel Grumbach | 87e5666 | 2011-08-25 23:10:50 -0700 | [diff] [blame] | 139 | |
| 140 | int (*dbgfs_register)(struct iwl_trans *trans, struct dentry* dir); |
Emmanuel Grumbach | 57210f7 | 2011-08-25 23:10:52 -0700 | [diff] [blame] | 141 | int (*suspend)(struct iwl_trans *trans); |
| 142 | int (*resume)(struct iwl_trans *trans); |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 143 | }; |
| 144 | |
Emmanuel Grumbach | 6fbfae8 | 2011-08-25 23:10:49 -0700 | [diff] [blame] | 145 | /** |
| 146 | * struct iwl_trans - transport common data |
| 147 | * @ops - pointer to iwl_trans_ops |
| 148 | * @shrd - pointer to iwl_shared which holds shared data from the upper layer |
| 149 | */ |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 150 | struct iwl_trans { |
| 151 | const struct iwl_trans_ops *ops; |
Emmanuel Grumbach | e6bb4c9 | 2011-08-25 23:10:48 -0700 | [diff] [blame] | 152 | struct iwl_shared *shrd; |
| 153 | |
| 154 | /* pointer to trans specific struct */ |
| 155 | /*Ensure that this pointer will always be aligned to sizeof pointer */ |
| 156 | char trans_specific[0] __attribute__((__aligned__(sizeof(void *)))); |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 157 | }; |
| 158 | |
Emmanuel Grumbach | e6bb4c9 | 2011-08-25 23:10:48 -0700 | [diff] [blame] | 159 | static inline int iwl_trans_request_irq(struct iwl_trans *trans) |
Emmanuel Grumbach | bdfbf09 | 2011-07-08 08:46:16 -0700 | [diff] [blame] | 160 | { |
Emmanuel Grumbach | e6bb4c9 | 2011-08-25 23:10:48 -0700 | [diff] [blame] | 161 | return trans->ops->request_irq(trans); |
Emmanuel Grumbach | bdfbf09 | 2011-07-08 08:46:16 -0700 | [diff] [blame] | 162 | } |
| 163 | |
Emmanuel Grumbach | e6bb4c9 | 2011-08-25 23:10:48 -0700 | [diff] [blame] | 164 | static inline int iwl_trans_start_device(struct iwl_trans *trans) |
Emmanuel Grumbach | 0286cee | 2011-07-10 15:39:57 +0300 | [diff] [blame] | 165 | { |
Emmanuel Grumbach | 6d8f6ee | 2011-08-25 23:11:06 -0700 | [diff] [blame^] | 166 | return trans->ops->start_device(trans); |
Emmanuel Grumbach | 0286cee | 2011-07-10 15:39:57 +0300 | [diff] [blame] | 167 | } |
| 168 | |
Emmanuel Grumbach | e6bb4c9 | 2011-08-25 23:10:48 -0700 | [diff] [blame] | 169 | static inline int iwl_trans_prepare_card_hw(struct iwl_trans *trans) |
Emmanuel Grumbach | bdfbf09 | 2011-07-08 08:46:16 -0700 | [diff] [blame] | 170 | { |
Emmanuel Grumbach | 6d8f6ee | 2011-08-25 23:11:06 -0700 | [diff] [blame^] | 171 | return trans->ops->prepare_card_hw(trans); |
Emmanuel Grumbach | bdfbf09 | 2011-07-08 08:46:16 -0700 | [diff] [blame] | 172 | } |
| 173 | |
Emmanuel Grumbach | e6bb4c9 | 2011-08-25 23:10:48 -0700 | [diff] [blame] | 174 | static inline void iwl_trans_stop_device(struct iwl_trans *trans) |
Emmanuel Grumbach | b3c2ce1 | 2011-07-07 15:50:10 +0300 | [diff] [blame] | 175 | { |
Emmanuel Grumbach | 6d8f6ee | 2011-08-25 23:11:06 -0700 | [diff] [blame^] | 176 | trans->ops->stop_device(trans); |
Emmanuel Grumbach | b3c2ce1 | 2011-07-07 15:50:10 +0300 | [diff] [blame] | 177 | } |
| 178 | |
Emmanuel Grumbach | e6bb4c9 | 2011-08-25 23:10:48 -0700 | [diff] [blame] | 179 | static inline void iwl_trans_tx_start(struct iwl_trans *trans) |
Emmanuel Grumbach | 392f8b7 | 2011-07-10 15:30:15 +0300 | [diff] [blame] | 180 | { |
Emmanuel Grumbach | 6d8f6ee | 2011-08-25 23:11:06 -0700 | [diff] [blame^] | 181 | trans->ops->tx_start(trans); |
Emmanuel Grumbach | 392f8b7 | 2011-07-10 15:30:15 +0300 | [diff] [blame] | 182 | } |
| 183 | |
Emmanuel Grumbach | e6bb4c9 | 2011-08-25 23:10:48 -0700 | [diff] [blame] | 184 | static inline void iwl_trans_rx_free(struct iwl_trans *trans) |
Emmanuel Grumbach | bdfbf09 | 2011-07-08 08:46:16 -0700 | [diff] [blame] | 185 | { |
Emmanuel Grumbach | 5a878bf | 2011-08-25 23:10:51 -0700 | [diff] [blame] | 186 | trans->ops->rx_free(trans); |
Emmanuel Grumbach | bdfbf09 | 2011-07-08 08:46:16 -0700 | [diff] [blame] | 187 | } |
| 188 | |
Emmanuel Grumbach | e6bb4c9 | 2011-08-25 23:10:48 -0700 | [diff] [blame] | 189 | static inline void iwl_trans_tx_free(struct iwl_trans *trans) |
| 190 | { |
Emmanuel Grumbach | 6d8f6ee | 2011-08-25 23:11:06 -0700 | [diff] [blame^] | 191 | trans->ops->tx_free(trans); |
Emmanuel Grumbach | e6bb4c9 | 2011-08-25 23:10:48 -0700 | [diff] [blame] | 192 | } |
| 193 | |
| 194 | static inline int iwl_trans_send_cmd(struct iwl_trans *trans, |
Emmanuel Grumbach | bdfbf09 | 2011-07-08 08:46:16 -0700 | [diff] [blame] | 195 | struct iwl_host_cmd *cmd) |
| 196 | { |
Emmanuel Grumbach | 6d8f6ee | 2011-08-25 23:11:06 -0700 | [diff] [blame^] | 197 | return trans->ops->send_cmd(trans, cmd); |
Emmanuel Grumbach | bdfbf09 | 2011-07-08 08:46:16 -0700 | [diff] [blame] | 198 | } |
| 199 | |
Emmanuel Grumbach | e6bb4c9 | 2011-08-25 23:10:48 -0700 | [diff] [blame] | 200 | static inline int iwl_trans_send_cmd_pdu(struct iwl_trans *trans, u8 id, |
| 201 | u32 flags, u16 len, const void *data) |
Emmanuel Grumbach | bdfbf09 | 2011-07-08 08:46:16 -0700 | [diff] [blame] | 202 | { |
Emmanuel Grumbach | 6d8f6ee | 2011-08-25 23:11:06 -0700 | [diff] [blame^] | 203 | return trans->ops->send_cmd_pdu(trans, id, flags, len, data); |
Emmanuel Grumbach | bdfbf09 | 2011-07-08 08:46:16 -0700 | [diff] [blame] | 204 | } |
Emmanuel Grumbach | c85eb61 | 2011-06-14 10:13:24 +0300 | [diff] [blame] | 205 | |
Emmanuel Grumbach | e6bb4c9 | 2011-08-25 23:10:48 -0700 | [diff] [blame] | 206 | static inline struct iwl_tx_cmd *iwl_trans_get_tx_cmd(struct iwl_trans *trans, |
Emmanuel Grumbach | 47c1b49 | 2011-07-03 11:22:15 +0300 | [diff] [blame] | 207 | int txq_id) |
| 208 | { |
Emmanuel Grumbach | 6d8f6ee | 2011-08-25 23:11:06 -0700 | [diff] [blame^] | 209 | return trans->ops->get_tx_cmd(trans, txq_id); |
Emmanuel Grumbach | 47c1b49 | 2011-07-03 11:22:15 +0300 | [diff] [blame] | 210 | } |
| 211 | |
Emmanuel Grumbach | e6bb4c9 | 2011-08-25 23:10:48 -0700 | [diff] [blame] | 212 | static inline int iwl_trans_tx(struct iwl_trans *trans, struct sk_buff *skb, |
Emmanuel Grumbach | 47c1b49 | 2011-07-03 11:22:15 +0300 | [diff] [blame] | 213 | struct iwl_tx_cmd *tx_cmd, int txq_id, __le16 fc, bool ampdu, |
| 214 | struct iwl_rxon_context *ctx) |
| 215 | { |
Emmanuel Grumbach | e6bb4c9 | 2011-08-25 23:10:48 -0700 | [diff] [blame] | 216 | return trans->ops->tx(priv(trans), skb, tx_cmd, txq_id, fc, ampdu, ctx); |
Emmanuel Grumbach | 47c1b49 | 2011-07-03 11:22:15 +0300 | [diff] [blame] | 217 | } |
| 218 | |
Emmanuel Grumbach | a0eaad7 | 2011-08-25 23:11:00 -0700 | [diff] [blame] | 219 | static inline void iwl_trans_reclaim(struct iwl_trans *trans, int txq_id, |
| 220 | int ssn, u32 status, |
| 221 | struct sk_buff_head *skbs) |
| 222 | { |
| 223 | trans->ops->reclaim(trans, txq_id, ssn, status, skbs); |
| 224 | } |
| 225 | |
Emmanuel Grumbach | e6bb4c9 | 2011-08-25 23:10:48 -0700 | [diff] [blame] | 226 | static inline int iwl_trans_txq_agg_disable(struct iwl_trans *trans, u16 txq_id, |
Emmanuel Grumbach | 48d42c4 | 2011-07-10 10:47:01 +0300 | [diff] [blame] | 227 | u16 ssn_idx, u8 tx_fifo) |
| 228 | { |
Emmanuel Grumbach | e6bb4c9 | 2011-08-25 23:10:48 -0700 | [diff] [blame] | 229 | return trans->ops->txq_agg_disable(priv(trans), txq_id, |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 230 | ssn_idx, tx_fifo); |
Emmanuel Grumbach | 48d42c4 | 2011-07-10 10:47:01 +0300 | [diff] [blame] | 231 | } |
| 232 | |
Emmanuel Grumbach | e6bb4c9 | 2011-08-25 23:10:48 -0700 | [diff] [blame] | 233 | static inline void iwl_trans_txq_agg_setup(struct iwl_trans *trans, int sta_id, |
Emmanuel Grumbach | 48d42c4 | 2011-07-10 10:47:01 +0300 | [diff] [blame] | 234 | int tid, int frame_limit) |
| 235 | { |
Emmanuel Grumbach | e6bb4c9 | 2011-08-25 23:10:48 -0700 | [diff] [blame] | 236 | trans->ops->txq_agg_setup(priv(trans), sta_id, tid, frame_limit); |
Emmanuel Grumbach | 48d42c4 | 2011-07-10 10:47:01 +0300 | [diff] [blame] | 237 | } |
| 238 | |
Emmanuel Grumbach | e6bb4c9 | 2011-08-25 23:10:48 -0700 | [diff] [blame] | 239 | static inline void iwl_trans_kick_nic(struct iwl_trans *trans) |
Emmanuel Grumbach | 56d90f4 | 2011-07-07 18:20:01 +0300 | [diff] [blame] | 240 | { |
Emmanuel Grumbach | 6d8f6ee | 2011-08-25 23:11:06 -0700 | [diff] [blame^] | 241 | trans->ops->kick_nic(trans); |
Emmanuel Grumbach | 56d90f4 | 2011-07-07 18:20:01 +0300 | [diff] [blame] | 242 | } |
| 243 | |
Emmanuel Grumbach | 0c32576 | 2011-08-25 23:10:53 -0700 | [diff] [blame] | 244 | static inline void iwl_trans_disable_sync_irq(struct iwl_trans *trans) |
Emmanuel Grumbach | a27367d | 2011-07-04 09:06:44 +0300 | [diff] [blame] | 245 | { |
Emmanuel Grumbach | 0c32576 | 2011-08-25 23:10:53 -0700 | [diff] [blame] | 246 | trans->ops->disable_sync_irq(trans); |
Emmanuel Grumbach | a27367d | 2011-07-04 09:06:44 +0300 | [diff] [blame] | 247 | } |
| 248 | |
Emmanuel Grumbach | e6bb4c9 | 2011-08-25 23:10:48 -0700 | [diff] [blame] | 249 | static inline void iwl_trans_free(struct iwl_trans *trans) |
Emmanuel Grumbach | 34c1b7b | 2011-07-04 08:58:19 +0300 | [diff] [blame] | 250 | { |
Emmanuel Grumbach | 6d8f6ee | 2011-08-25 23:11:06 -0700 | [diff] [blame^] | 251 | trans->ops->free(trans); |
Emmanuel Grumbach | 34c1b7b | 2011-07-04 08:58:19 +0300 | [diff] [blame] | 252 | } |
| 253 | |
Emmanuel Grumbach | 87e5666 | 2011-08-25 23:10:50 -0700 | [diff] [blame] | 254 | static inline int iwl_trans_dbgfs_register(struct iwl_trans *trans, |
| 255 | struct dentry *dir) |
| 256 | { |
| 257 | return trans->ops->dbgfs_register(trans, dir); |
| 258 | } |
| 259 | |
Emmanuel Grumbach | 57210f7 | 2011-08-25 23:10:52 -0700 | [diff] [blame] | 260 | static inline int iwl_trans_suspend(struct iwl_trans *trans) |
| 261 | { |
| 262 | return trans->ops->suspend(trans); |
| 263 | } |
| 264 | |
| 265 | static inline int iwl_trans_resume(struct iwl_trans *trans) |
| 266 | { |
| 267 | return trans->ops->resume(trans); |
| 268 | } |
| 269 | |
Emmanuel Grumbach | e6bb4c9 | 2011-08-25 23:10:48 -0700 | [diff] [blame] | 270 | /***************************************************** |
| 271 | * Transport layers implementations |
| 272 | ******************************************************/ |
| 273 | extern const struct iwl_trans_ops trans_ops_pcie; |
Emmanuel Grumbach | 48d42c4 | 2011-07-10 10:47:01 +0300 | [diff] [blame] | 274 | |
Emmanuel Grumbach | 41c5054 | 2011-07-11 08:51:04 +0300 | [diff] [blame] | 275 | #endif /* __iwl_trans_h__ */ |