J. German Rivera | 197f4d6 | 2015-03-05 19:35:25 -0600 | [diff] [blame] | 1 | /* Copyright 2013-2015 Freescale Semiconductor Inc. |
| 2 | * |
| 3 | * Redistribution and use in source and binary forms, with or without |
| 4 | * modification, are permitted provided that the following conditions are met: |
| 5 | * * Redistributions of source code must retain the above copyright |
| 6 | * notice, this list of conditions and the following disclaimer. |
| 7 | * * Redistributions in binary form must reproduce the above copyright |
| 8 | * notice, this list of conditions and the following disclaimer in the |
| 9 | * documentation and/or other materials provided with the distribution. |
| 10 | * * Neither the name of the above-listed copyright holders nor the |
| 11 | * names of any contributors may be used to endorse or promote products |
| 12 | * derived from this software without specific prior written permission. |
| 13 | * |
| 14 | * |
| 15 | * ALTERNATIVELY, this software may be distributed under the terms of the |
| 16 | * GNU General Public License ("GPL") as published by the Free Software |
| 17 | * Foundation, either version 2 of that License or (at your option) any |
| 18 | * later version. |
| 19 | * |
| 20 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| 21 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 22 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 23 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE |
| 24 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 25 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 26 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 27 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 28 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 29 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 30 | * POSSIBILITY OF SUCH DAMAGE. |
| 31 | */ |
| 32 | #include "../include/mc-sys.h" |
| 33 | #include "../include/mc-cmd.h" |
| 34 | #include "dpmcp.h" |
| 35 | #include "dpmcp-cmd.h" |
| 36 | |
J. German Rivera | e9bf3f2 | 2015-09-24 14:26:54 -0500 | [diff] [blame] | 37 | /** |
| 38 | * dpmcp_open() - Open a control session for the specified object. |
| 39 | * @mc_io: Pointer to MC portal's I/O object |
| 40 | * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' |
| 41 | * @dpmcp_id: DPMCP unique ID |
| 42 | * @token: Returned token; use in subsequent API calls |
| 43 | * |
| 44 | * This function can be used to open a control session for an |
| 45 | * already created object; an object may have been declared in |
| 46 | * the DPL or by calling the dpmcp_create function. |
| 47 | * This function returns a unique authentication token, |
| 48 | * associated with the specific object ID and the specific MC |
| 49 | * portal; this token must be used in all subsequent commands for |
| 50 | * this specific object |
| 51 | * |
| 52 | * Return: '0' on Success; Error code otherwise. |
| 53 | */ |
J. German Rivera | 7a9a56b | 2015-09-23 16:11:01 -0500 | [diff] [blame] | 54 | int dpmcp_open(struct fsl_mc_io *mc_io, |
J. German Rivera | ba72f25 | 2015-09-25 11:21:01 -0500 | [diff] [blame] | 55 | u32 cmd_flags, |
J. German Rivera | 7a9a56b | 2015-09-23 16:11:01 -0500 | [diff] [blame] | 56 | int dpmcp_id, |
J. German Rivera | ba72f25 | 2015-09-25 11:21:01 -0500 | [diff] [blame] | 57 | u16 *token) |
J. German Rivera | 197f4d6 | 2015-03-05 19:35:25 -0600 | [diff] [blame] | 58 | { |
| 59 | struct mc_command cmd = { 0 }; |
| 60 | int err; |
| 61 | |
| 62 | /* prepare command */ |
| 63 | cmd.header = mc_encode_cmd_header(DPMCP_CMDID_OPEN, |
J. German Rivera | 7a9a56b | 2015-09-23 16:11:01 -0500 | [diff] [blame] | 64 | cmd_flags, 0); |
J. German Rivera | 197f4d6 | 2015-03-05 19:35:25 -0600 | [diff] [blame] | 65 | cmd.params[0] |= mc_enc(0, 32, dpmcp_id); |
| 66 | |
| 67 | /* send command to mc*/ |
| 68 | err = mc_send_command(mc_io, &cmd); |
| 69 | if (err) |
| 70 | return err; |
| 71 | |
| 72 | /* retrieve response parameters */ |
| 73 | *token = MC_CMD_HDR_READ_TOKEN(cmd.header); |
| 74 | |
| 75 | return err; |
| 76 | } |
| 77 | |
J. German Rivera | e9bf3f2 | 2015-09-24 14:26:54 -0500 | [diff] [blame] | 78 | /** |
| 79 | * dpmcp_close() - Close the control session of the object |
| 80 | * @mc_io: Pointer to MC portal's I/O object |
| 81 | * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' |
| 82 | * @token: Token of DPMCP object |
| 83 | * |
| 84 | * After this function is called, no further operations are |
| 85 | * allowed on the object without opening a new control session. |
| 86 | * |
| 87 | * Return: '0' on Success; Error code otherwise. |
| 88 | */ |
J. German Rivera | 7a9a56b | 2015-09-23 16:11:01 -0500 | [diff] [blame] | 89 | int dpmcp_close(struct fsl_mc_io *mc_io, |
J. German Rivera | ba72f25 | 2015-09-25 11:21:01 -0500 | [diff] [blame] | 90 | u32 cmd_flags, |
| 91 | u16 token) |
J. German Rivera | 197f4d6 | 2015-03-05 19:35:25 -0600 | [diff] [blame] | 92 | { |
| 93 | struct mc_command cmd = { 0 }; |
| 94 | |
| 95 | /* prepare command */ |
J. German Rivera | 7a9a56b | 2015-09-23 16:11:01 -0500 | [diff] [blame] | 96 | cmd.header = mc_encode_cmd_header(DPMCP_CMDID_CLOSE, |
| 97 | cmd_flags, token); |
J. German Rivera | 197f4d6 | 2015-03-05 19:35:25 -0600 | [diff] [blame] | 98 | |
| 99 | /* send command to mc*/ |
| 100 | return mc_send_command(mc_io, &cmd); |
| 101 | } |
| 102 | |
J. German Rivera | e9bf3f2 | 2015-09-24 14:26:54 -0500 | [diff] [blame] | 103 | /** |
| 104 | * dpmcp_create() - Create the DPMCP object. |
| 105 | * @mc_io: Pointer to MC portal's I/O object |
| 106 | * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' |
| 107 | * @cfg: Configuration structure |
| 108 | * @token: Returned token; use in subsequent API calls |
| 109 | * |
| 110 | * Create the DPMCP object, allocate required resources and |
| 111 | * perform required initialization. |
| 112 | * |
| 113 | * The object can be created either by declaring it in the |
| 114 | * DPL file, or by calling this function. |
| 115 | * This function returns a unique authentication token, |
| 116 | * associated with the specific object ID and the specific MC |
| 117 | * portal; this token must be used in all subsequent calls to |
| 118 | * this specific object. For objects that are created using the |
| 119 | * DPL file, call dpmcp_open function to get an authentication |
| 120 | * token first. |
| 121 | * |
| 122 | * Return: '0' on Success; Error code otherwise. |
| 123 | */ |
J. German Rivera | 197f4d6 | 2015-03-05 19:35:25 -0600 | [diff] [blame] | 124 | int dpmcp_create(struct fsl_mc_io *mc_io, |
J. German Rivera | ba72f25 | 2015-09-25 11:21:01 -0500 | [diff] [blame] | 125 | u32 cmd_flags, |
J. German Rivera | 197f4d6 | 2015-03-05 19:35:25 -0600 | [diff] [blame] | 126 | const struct dpmcp_cfg *cfg, |
J. German Rivera | ba72f25 | 2015-09-25 11:21:01 -0500 | [diff] [blame] | 127 | u16 *token) |
J. German Rivera | 197f4d6 | 2015-03-05 19:35:25 -0600 | [diff] [blame] | 128 | { |
| 129 | struct mc_command cmd = { 0 }; |
| 130 | int err; |
| 131 | |
| 132 | /* prepare command */ |
| 133 | cmd.header = mc_encode_cmd_header(DPMCP_CMDID_CREATE, |
J. German Rivera | 7a9a56b | 2015-09-23 16:11:01 -0500 | [diff] [blame] | 134 | cmd_flags, 0); |
J. German Rivera | 197f4d6 | 2015-03-05 19:35:25 -0600 | [diff] [blame] | 135 | cmd.params[0] |= mc_enc(0, 32, cfg->portal_id); |
| 136 | |
| 137 | /* send command to mc*/ |
| 138 | err = mc_send_command(mc_io, &cmd); |
| 139 | if (err) |
| 140 | return err; |
| 141 | |
| 142 | /* retrieve response parameters */ |
| 143 | *token = MC_CMD_HDR_READ_TOKEN(cmd.header); |
| 144 | |
| 145 | return 0; |
| 146 | } |
| 147 | |
J. German Rivera | e9bf3f2 | 2015-09-24 14:26:54 -0500 | [diff] [blame] | 148 | /** |
| 149 | * dpmcp_destroy() - Destroy the DPMCP object and release all its resources. |
| 150 | * @mc_io: Pointer to MC portal's I/O object |
| 151 | * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' |
| 152 | * @token: Token of DPMCP object |
| 153 | * |
| 154 | * Return: '0' on Success; error code otherwise. |
| 155 | */ |
J. German Rivera | 7a9a56b | 2015-09-23 16:11:01 -0500 | [diff] [blame] | 156 | int dpmcp_destroy(struct fsl_mc_io *mc_io, |
J. German Rivera | ba72f25 | 2015-09-25 11:21:01 -0500 | [diff] [blame] | 157 | u32 cmd_flags, |
| 158 | u16 token) |
J. German Rivera | 197f4d6 | 2015-03-05 19:35:25 -0600 | [diff] [blame] | 159 | { |
| 160 | struct mc_command cmd = { 0 }; |
| 161 | |
| 162 | /* prepare command */ |
| 163 | cmd.header = mc_encode_cmd_header(DPMCP_CMDID_DESTROY, |
J. German Rivera | 7a9a56b | 2015-09-23 16:11:01 -0500 | [diff] [blame] | 164 | cmd_flags, token); |
J. German Rivera | 197f4d6 | 2015-03-05 19:35:25 -0600 | [diff] [blame] | 165 | |
| 166 | /* send command to mc*/ |
| 167 | return mc_send_command(mc_io, &cmd); |
| 168 | } |
| 169 | |
J. German Rivera | e9bf3f2 | 2015-09-24 14:26:54 -0500 | [diff] [blame] | 170 | /** |
| 171 | * dpmcp_reset() - Reset the DPMCP, returns the object to initial state. |
| 172 | * @mc_io: Pointer to MC portal's I/O object |
| 173 | * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' |
| 174 | * @token: Token of DPMCP object |
| 175 | * |
| 176 | * Return: '0' on Success; Error code otherwise. |
| 177 | */ |
J. German Rivera | 7a9a56b | 2015-09-23 16:11:01 -0500 | [diff] [blame] | 178 | int dpmcp_reset(struct fsl_mc_io *mc_io, |
J. German Rivera | ba72f25 | 2015-09-25 11:21:01 -0500 | [diff] [blame] | 179 | u32 cmd_flags, |
| 180 | u16 token) |
J. German Rivera | 197f4d6 | 2015-03-05 19:35:25 -0600 | [diff] [blame] | 181 | { |
| 182 | struct mc_command cmd = { 0 }; |
| 183 | |
| 184 | /* prepare command */ |
| 185 | cmd.header = mc_encode_cmd_header(DPMCP_CMDID_RESET, |
J. German Rivera | 7a9a56b | 2015-09-23 16:11:01 -0500 | [diff] [blame] | 186 | cmd_flags, token); |
J. German Rivera | 197f4d6 | 2015-03-05 19:35:25 -0600 | [diff] [blame] | 187 | |
| 188 | /* send command to mc*/ |
| 189 | return mc_send_command(mc_io, &cmd); |
| 190 | } |
| 191 | |
J. German Rivera | e9bf3f2 | 2015-09-24 14:26:54 -0500 | [diff] [blame] | 192 | /** |
| 193 | * dpmcp_set_irq() - Set IRQ information for the DPMCP to trigger an interrupt. |
| 194 | * @mc_io: Pointer to MC portal's I/O object |
| 195 | * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' |
| 196 | * @token: Token of DPMCP object |
| 197 | * @irq_index: Identifies the interrupt index to configure |
| 198 | * @irq_cfg: IRQ configuration |
| 199 | * |
| 200 | * Return: '0' on Success; Error code otherwise. |
| 201 | */ |
J. German Rivera | 197f4d6 | 2015-03-05 19:35:25 -0600 | [diff] [blame] | 202 | int dpmcp_set_irq(struct fsl_mc_io *mc_io, |
J. German Rivera | ba72f25 | 2015-09-25 11:21:01 -0500 | [diff] [blame] | 203 | u32 cmd_flags, |
| 204 | u16 token, |
| 205 | u8 irq_index, |
J. German Rivera | 7a9a56b | 2015-09-23 16:11:01 -0500 | [diff] [blame] | 206 | struct dpmcp_irq_cfg *irq_cfg) |
J. German Rivera | 197f4d6 | 2015-03-05 19:35:25 -0600 | [diff] [blame] | 207 | { |
| 208 | struct mc_command cmd = { 0 }; |
| 209 | |
| 210 | /* prepare command */ |
| 211 | cmd.header = mc_encode_cmd_header(DPMCP_CMDID_SET_IRQ, |
J. German Rivera | 7a9a56b | 2015-09-23 16:11:01 -0500 | [diff] [blame] | 212 | cmd_flags, token); |
J. German Rivera | 197f4d6 | 2015-03-05 19:35:25 -0600 | [diff] [blame] | 213 | cmd.params[0] |= mc_enc(0, 8, irq_index); |
J. German Rivera | 7a9a56b | 2015-09-23 16:11:01 -0500 | [diff] [blame] | 214 | cmd.params[0] |= mc_enc(32, 32, irq_cfg->val); |
| 215 | cmd.params[1] |= mc_enc(0, 64, irq_cfg->paddr); |
| 216 | cmd.params[2] |= mc_enc(0, 32, irq_cfg->user_irq_id); |
J. German Rivera | 197f4d6 | 2015-03-05 19:35:25 -0600 | [diff] [blame] | 217 | |
| 218 | /* send command to mc*/ |
| 219 | return mc_send_command(mc_io, &cmd); |
| 220 | } |
| 221 | |
J. German Rivera | e9bf3f2 | 2015-09-24 14:26:54 -0500 | [diff] [blame] | 222 | /** |
| 223 | * dpmcp_get_irq() - Get IRQ information from the DPMCP. |
| 224 | * @mc_io: Pointer to MC portal's I/O object |
| 225 | * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' |
| 226 | * @token: Token of DPMCP object |
| 227 | * @irq_index: The interrupt index to configure |
| 228 | * @type: Interrupt type: 0 represents message interrupt |
| 229 | * type (both irq_addr and irq_val are valid) |
| 230 | * @irq_cfg: IRQ attributes |
| 231 | * |
| 232 | * Return: '0' on Success; Error code otherwise. |
| 233 | */ |
J. German Rivera | 197f4d6 | 2015-03-05 19:35:25 -0600 | [diff] [blame] | 234 | int dpmcp_get_irq(struct fsl_mc_io *mc_io, |
J. German Rivera | ba72f25 | 2015-09-25 11:21:01 -0500 | [diff] [blame] | 235 | u32 cmd_flags, |
| 236 | u16 token, |
| 237 | u8 irq_index, |
J. German Rivera | 7a9a56b | 2015-09-23 16:11:01 -0500 | [diff] [blame] | 238 | int *type, |
| 239 | struct dpmcp_irq_cfg *irq_cfg) |
J. German Rivera | 197f4d6 | 2015-03-05 19:35:25 -0600 | [diff] [blame] | 240 | { |
| 241 | struct mc_command cmd = { 0 }; |
| 242 | int err; |
| 243 | |
| 244 | /* prepare command */ |
| 245 | cmd.header = mc_encode_cmd_header(DPMCP_CMDID_GET_IRQ, |
J. German Rivera | 7a9a56b | 2015-09-23 16:11:01 -0500 | [diff] [blame] | 246 | cmd_flags, token); |
J. German Rivera | 197f4d6 | 2015-03-05 19:35:25 -0600 | [diff] [blame] | 247 | cmd.params[0] |= mc_enc(32, 8, irq_index); |
| 248 | |
| 249 | /* send command to mc*/ |
| 250 | err = mc_send_command(mc_io, &cmd); |
| 251 | if (err) |
| 252 | return err; |
| 253 | |
| 254 | /* retrieve response parameters */ |
J. German Rivera | ba72f25 | 2015-09-25 11:21:01 -0500 | [diff] [blame] | 255 | irq_cfg->val = (u32)mc_dec(cmd.params[0], 0, 32); |
| 256 | irq_cfg->paddr = (u64)mc_dec(cmd.params[1], 0, 64); |
J. German Rivera | 7a9a56b | 2015-09-23 16:11:01 -0500 | [diff] [blame] | 257 | irq_cfg->user_irq_id = (int)mc_dec(cmd.params[2], 0, 32); |
J. German Rivera | 197f4d6 | 2015-03-05 19:35:25 -0600 | [diff] [blame] | 258 | *type = (int)mc_dec(cmd.params[2], 32, 32); |
| 259 | return 0; |
| 260 | } |
| 261 | |
J. German Rivera | e9bf3f2 | 2015-09-24 14:26:54 -0500 | [diff] [blame] | 262 | /** |
| 263 | * dpmcp_set_irq_enable() - Set overall interrupt state. |
| 264 | * @mc_io: Pointer to MC portal's I/O object |
| 265 | * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' |
| 266 | * @token: Token of DPMCP object |
| 267 | * @irq_index: The interrupt index to configure |
| 268 | * @en: Interrupt state - enable = 1, disable = 0 |
| 269 | * |
| 270 | * Allows GPP software to control when interrupts are generated. |
| 271 | * Each interrupt can have up to 32 causes. The enable/disable control's the |
| 272 | * overall interrupt state. if the interrupt is disabled no causes will cause |
| 273 | * an interrupt. |
| 274 | * |
| 275 | * Return: '0' on Success; Error code otherwise. |
| 276 | */ |
J. German Rivera | 197f4d6 | 2015-03-05 19:35:25 -0600 | [diff] [blame] | 277 | int dpmcp_set_irq_enable(struct fsl_mc_io *mc_io, |
J. German Rivera | ba72f25 | 2015-09-25 11:21:01 -0500 | [diff] [blame] | 278 | u32 cmd_flags, |
| 279 | u16 token, |
| 280 | u8 irq_index, |
| 281 | u8 en) |
J. German Rivera | 197f4d6 | 2015-03-05 19:35:25 -0600 | [diff] [blame] | 282 | { |
| 283 | struct mc_command cmd = { 0 }; |
| 284 | |
| 285 | /* prepare command */ |
| 286 | cmd.header = mc_encode_cmd_header(DPMCP_CMDID_SET_IRQ_ENABLE, |
J. German Rivera | 7a9a56b | 2015-09-23 16:11:01 -0500 | [diff] [blame] | 287 | cmd_flags, token); |
J. German Rivera | 197f4d6 | 2015-03-05 19:35:25 -0600 | [diff] [blame] | 288 | cmd.params[0] |= mc_enc(0, 8, en); |
| 289 | cmd.params[0] |= mc_enc(32, 8, irq_index); |
| 290 | |
| 291 | /* send command to mc*/ |
| 292 | return mc_send_command(mc_io, &cmd); |
| 293 | } |
| 294 | |
J. German Rivera | e9bf3f2 | 2015-09-24 14:26:54 -0500 | [diff] [blame] | 295 | /** |
| 296 | * dpmcp_get_irq_enable() - Get overall interrupt state |
| 297 | * @mc_io: Pointer to MC portal's I/O object |
| 298 | * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' |
| 299 | * @token: Token of DPMCP object |
| 300 | * @irq_index: The interrupt index to configure |
| 301 | * @en: Returned interrupt state - enable = 1, disable = 0 |
| 302 | * |
| 303 | * Return: '0' on Success; Error code otherwise. |
| 304 | */ |
J. German Rivera | 197f4d6 | 2015-03-05 19:35:25 -0600 | [diff] [blame] | 305 | int dpmcp_get_irq_enable(struct fsl_mc_io *mc_io, |
J. German Rivera | ba72f25 | 2015-09-25 11:21:01 -0500 | [diff] [blame] | 306 | u32 cmd_flags, |
| 307 | u16 token, |
| 308 | u8 irq_index, |
| 309 | u8 *en) |
J. German Rivera | 197f4d6 | 2015-03-05 19:35:25 -0600 | [diff] [blame] | 310 | { |
| 311 | struct mc_command cmd = { 0 }; |
| 312 | int err; |
| 313 | |
| 314 | /* prepare command */ |
| 315 | cmd.header = mc_encode_cmd_header(DPMCP_CMDID_GET_IRQ_ENABLE, |
J. German Rivera | 7a9a56b | 2015-09-23 16:11:01 -0500 | [diff] [blame] | 316 | cmd_flags, token); |
J. German Rivera | 197f4d6 | 2015-03-05 19:35:25 -0600 | [diff] [blame] | 317 | cmd.params[0] |= mc_enc(32, 8, irq_index); |
| 318 | |
| 319 | /* send command to mc*/ |
| 320 | err = mc_send_command(mc_io, &cmd); |
| 321 | if (err) |
| 322 | return err; |
| 323 | |
| 324 | /* retrieve response parameters */ |
J. German Rivera | ba72f25 | 2015-09-25 11:21:01 -0500 | [diff] [blame] | 325 | *en = (u8)mc_dec(cmd.params[0], 0, 8); |
J. German Rivera | 197f4d6 | 2015-03-05 19:35:25 -0600 | [diff] [blame] | 326 | return 0; |
| 327 | } |
| 328 | |
J. German Rivera | e9bf3f2 | 2015-09-24 14:26:54 -0500 | [diff] [blame] | 329 | /** |
| 330 | * dpmcp_set_irq_mask() - Set interrupt mask. |
| 331 | * @mc_io: Pointer to MC portal's I/O object |
| 332 | * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' |
| 333 | * @token: Token of DPMCP object |
| 334 | * @irq_index: The interrupt index to configure |
| 335 | * @mask: Event mask to trigger interrupt; |
| 336 | * each bit: |
| 337 | * 0 = ignore event |
| 338 | * 1 = consider event for asserting IRQ |
| 339 | * |
| 340 | * Every interrupt can have up to 32 causes and the interrupt model supports |
| 341 | * masking/unmasking each cause independently |
| 342 | * |
| 343 | * Return: '0' on Success; Error code otherwise. |
| 344 | */ |
J. German Rivera | 197f4d6 | 2015-03-05 19:35:25 -0600 | [diff] [blame] | 345 | int dpmcp_set_irq_mask(struct fsl_mc_io *mc_io, |
J. German Rivera | ba72f25 | 2015-09-25 11:21:01 -0500 | [diff] [blame] | 346 | u32 cmd_flags, |
| 347 | u16 token, |
| 348 | u8 irq_index, |
| 349 | u32 mask) |
J. German Rivera | 197f4d6 | 2015-03-05 19:35:25 -0600 | [diff] [blame] | 350 | { |
| 351 | struct mc_command cmd = { 0 }; |
| 352 | |
| 353 | /* prepare command */ |
| 354 | cmd.header = mc_encode_cmd_header(DPMCP_CMDID_SET_IRQ_MASK, |
J. German Rivera | 7a9a56b | 2015-09-23 16:11:01 -0500 | [diff] [blame] | 355 | cmd_flags, token); |
J. German Rivera | 197f4d6 | 2015-03-05 19:35:25 -0600 | [diff] [blame] | 356 | cmd.params[0] |= mc_enc(0, 32, mask); |
| 357 | cmd.params[0] |= mc_enc(32, 8, irq_index); |
| 358 | |
| 359 | /* send command to mc*/ |
| 360 | return mc_send_command(mc_io, &cmd); |
| 361 | } |
| 362 | |
J. German Rivera | e9bf3f2 | 2015-09-24 14:26:54 -0500 | [diff] [blame] | 363 | /** |
| 364 | * dpmcp_get_irq_mask() - Get interrupt mask. |
| 365 | * @mc_io: Pointer to MC portal's I/O object |
| 366 | * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' |
| 367 | * @token: Token of DPMCP object |
| 368 | * @irq_index: The interrupt index to configure |
| 369 | * @mask: Returned event mask to trigger interrupt |
| 370 | * |
| 371 | * Every interrupt can have up to 32 causes and the interrupt model supports |
| 372 | * masking/unmasking each cause independently |
| 373 | * |
| 374 | * Return: '0' on Success; Error code otherwise. |
| 375 | */ |
J. German Rivera | 197f4d6 | 2015-03-05 19:35:25 -0600 | [diff] [blame] | 376 | int dpmcp_get_irq_mask(struct fsl_mc_io *mc_io, |
J. German Rivera | ba72f25 | 2015-09-25 11:21:01 -0500 | [diff] [blame] | 377 | u32 cmd_flags, |
| 378 | u16 token, |
| 379 | u8 irq_index, |
| 380 | u32 *mask) |
J. German Rivera | 197f4d6 | 2015-03-05 19:35:25 -0600 | [diff] [blame] | 381 | { |
| 382 | struct mc_command cmd = { 0 }; |
| 383 | int err; |
| 384 | |
| 385 | /* prepare command */ |
| 386 | cmd.header = mc_encode_cmd_header(DPMCP_CMDID_GET_IRQ_MASK, |
J. German Rivera | 7a9a56b | 2015-09-23 16:11:01 -0500 | [diff] [blame] | 387 | cmd_flags, token); |
J. German Rivera | 197f4d6 | 2015-03-05 19:35:25 -0600 | [diff] [blame] | 388 | cmd.params[0] |= mc_enc(32, 8, irq_index); |
| 389 | |
| 390 | /* send command to mc*/ |
| 391 | err = mc_send_command(mc_io, &cmd); |
| 392 | if (err) |
| 393 | return err; |
| 394 | |
| 395 | /* retrieve response parameters */ |
J. German Rivera | ba72f25 | 2015-09-25 11:21:01 -0500 | [diff] [blame] | 396 | *mask = (u32)mc_dec(cmd.params[0], 0, 32); |
J. German Rivera | 197f4d6 | 2015-03-05 19:35:25 -0600 | [diff] [blame] | 397 | return 0; |
| 398 | } |
| 399 | |
J. German Rivera | e9bf3f2 | 2015-09-24 14:26:54 -0500 | [diff] [blame] | 400 | /** |
| 401 | * dpmcp_get_irq_status() - Get the current status of any pending interrupts. |
| 402 | * |
| 403 | * @mc_io: Pointer to MC portal's I/O object |
| 404 | * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' |
| 405 | * @token: Token of DPMCP object |
| 406 | * @irq_index: The interrupt index to configure |
| 407 | * @status: Returned interrupts status - one bit per cause: |
| 408 | * 0 = no interrupt pending |
| 409 | * 1 = interrupt pending |
| 410 | * |
| 411 | * Return: '0' on Success; Error code otherwise. |
| 412 | */ |
J. German Rivera | 197f4d6 | 2015-03-05 19:35:25 -0600 | [diff] [blame] | 413 | int dpmcp_get_irq_status(struct fsl_mc_io *mc_io, |
J. German Rivera | ba72f25 | 2015-09-25 11:21:01 -0500 | [diff] [blame] | 414 | u32 cmd_flags, |
| 415 | u16 token, |
| 416 | u8 irq_index, |
| 417 | u32 *status) |
J. German Rivera | 197f4d6 | 2015-03-05 19:35:25 -0600 | [diff] [blame] | 418 | { |
| 419 | struct mc_command cmd = { 0 }; |
| 420 | int err; |
| 421 | |
| 422 | /* prepare command */ |
| 423 | cmd.header = mc_encode_cmd_header(DPMCP_CMDID_GET_IRQ_STATUS, |
J. German Rivera | 7a9a56b | 2015-09-23 16:11:01 -0500 | [diff] [blame] | 424 | cmd_flags, token); |
J. German Rivera | 197f4d6 | 2015-03-05 19:35:25 -0600 | [diff] [blame] | 425 | cmd.params[0] |= mc_enc(32, 8, irq_index); |
| 426 | |
| 427 | /* send command to mc*/ |
| 428 | err = mc_send_command(mc_io, &cmd); |
| 429 | if (err) |
| 430 | return err; |
| 431 | |
| 432 | /* retrieve response parameters */ |
J. German Rivera | ba72f25 | 2015-09-25 11:21:01 -0500 | [diff] [blame] | 433 | *status = (u32)mc_dec(cmd.params[0], 0, 32); |
J. German Rivera | 197f4d6 | 2015-03-05 19:35:25 -0600 | [diff] [blame] | 434 | return 0; |
| 435 | } |
| 436 | |
J. German Rivera | e9bf3f2 | 2015-09-24 14:26:54 -0500 | [diff] [blame] | 437 | /** |
| 438 | * dpmcp_clear_irq_status() - Clear a pending interrupt's status |
| 439 | * |
| 440 | * @mc_io: Pointer to MC portal's I/O object |
| 441 | * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' |
| 442 | * @token: Token of DPMCP object |
| 443 | * @irq_index: The interrupt index to configure |
| 444 | * @status: Bits to clear (W1C) - one bit per cause: |
| 445 | * 0 = don't change |
| 446 | * 1 = clear status bit |
| 447 | * |
| 448 | * Return: '0' on Success; Error code otherwise. |
| 449 | */ |
J. German Rivera | 197f4d6 | 2015-03-05 19:35:25 -0600 | [diff] [blame] | 450 | int dpmcp_clear_irq_status(struct fsl_mc_io *mc_io, |
J. German Rivera | ba72f25 | 2015-09-25 11:21:01 -0500 | [diff] [blame] | 451 | u32 cmd_flags, |
| 452 | u16 token, |
| 453 | u8 irq_index, |
| 454 | u32 status) |
J. German Rivera | 197f4d6 | 2015-03-05 19:35:25 -0600 | [diff] [blame] | 455 | { |
| 456 | struct mc_command cmd = { 0 }; |
| 457 | |
| 458 | /* prepare command */ |
| 459 | cmd.header = mc_encode_cmd_header(DPMCP_CMDID_CLEAR_IRQ_STATUS, |
J. German Rivera | 7a9a56b | 2015-09-23 16:11:01 -0500 | [diff] [blame] | 460 | cmd_flags, token); |
J. German Rivera | 197f4d6 | 2015-03-05 19:35:25 -0600 | [diff] [blame] | 461 | cmd.params[0] |= mc_enc(0, 32, status); |
| 462 | cmd.params[0] |= mc_enc(32, 8, irq_index); |
| 463 | |
| 464 | /* send command to mc*/ |
| 465 | return mc_send_command(mc_io, &cmd); |
| 466 | } |
| 467 | |
J. German Rivera | e9bf3f2 | 2015-09-24 14:26:54 -0500 | [diff] [blame] | 468 | /** |
| 469 | * dpmcp_get_attributes - Retrieve DPMCP attributes. |
| 470 | * |
| 471 | * @mc_io: Pointer to MC portal's I/O object |
| 472 | * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' |
| 473 | * @token: Token of DPMCP object |
| 474 | * @attr: Returned object's attributes |
| 475 | * |
| 476 | * Return: '0' on Success; Error code otherwise. |
| 477 | */ |
J. German Rivera | 197f4d6 | 2015-03-05 19:35:25 -0600 | [diff] [blame] | 478 | int dpmcp_get_attributes(struct fsl_mc_io *mc_io, |
J. German Rivera | ba72f25 | 2015-09-25 11:21:01 -0500 | [diff] [blame] | 479 | u32 cmd_flags, |
| 480 | u16 token, |
J. German Rivera | 7a9a56b | 2015-09-23 16:11:01 -0500 | [diff] [blame] | 481 | struct dpmcp_attr *attr) |
J. German Rivera | 197f4d6 | 2015-03-05 19:35:25 -0600 | [diff] [blame] | 482 | { |
| 483 | struct mc_command cmd = { 0 }; |
| 484 | int err; |
| 485 | |
| 486 | /* prepare command */ |
| 487 | cmd.header = mc_encode_cmd_header(DPMCP_CMDID_GET_ATTR, |
J. German Rivera | 7a9a56b | 2015-09-23 16:11:01 -0500 | [diff] [blame] | 488 | cmd_flags, token); |
J. German Rivera | 197f4d6 | 2015-03-05 19:35:25 -0600 | [diff] [blame] | 489 | |
| 490 | /* send command to mc*/ |
| 491 | err = mc_send_command(mc_io, &cmd); |
| 492 | if (err) |
| 493 | return err; |
| 494 | |
| 495 | /* retrieve response parameters */ |
| 496 | attr->id = (int)mc_dec(cmd.params[0], 32, 32); |
J. German Rivera | ba72f25 | 2015-09-25 11:21:01 -0500 | [diff] [blame] | 497 | attr->version.major = (u16)mc_dec(cmd.params[1], 0, 16); |
| 498 | attr->version.minor = (u16)mc_dec(cmd.params[1], 16, 16); |
J. German Rivera | 197f4d6 | 2015-03-05 19:35:25 -0600 | [diff] [blame] | 499 | return 0; |
| 500 | } |