16bd067c4SBogdan Purcareata // SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) 26bd067c4SBogdan Purcareata /* 36bd067c4SBogdan Purcareata * Copyright 2013-2016 Freescale Semiconductor Inc. 4993577b2SDiana Craciun * Copyright 2020 NXP 56bd067c4SBogdan Purcareata * 66bd067c4SBogdan Purcareata */ 76bd067c4SBogdan Purcareata #include <linux/kernel.h> 86bd067c4SBogdan Purcareata #include <linux/fsl/mc.h> 96bd067c4SBogdan Purcareata 106bd067c4SBogdan Purcareata #include "fsl-mc-private.h" 116bd067c4SBogdan Purcareata 12993577b2SDiana Craciun /* 13993577b2SDiana Craciun * cache the DPRC version to reduce the number of commands 14993577b2SDiana Craciun * towards the mc firmware 15993577b2SDiana Craciun */ 16993577b2SDiana Craciun static u16 dprc_major_ver; 17993577b2SDiana Craciun static u16 dprc_minor_ver; 18993577b2SDiana Craciun 196bd067c4SBogdan Purcareata /** 206bd067c4SBogdan Purcareata * dprc_open() - Open DPRC object for use 216bd067c4SBogdan Purcareata * @mc_io: Pointer to MC portal's I/O object 226bd067c4SBogdan Purcareata * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' 236bd067c4SBogdan Purcareata * @container_id: Container ID to open 246bd067c4SBogdan Purcareata * @token: Returned token of DPRC object 256bd067c4SBogdan Purcareata * 266bd067c4SBogdan Purcareata * Return: '0' on Success; Error code otherwise. 276bd067c4SBogdan Purcareata * 286bd067c4SBogdan Purcareata * @warning Required before any operation on the object. 296bd067c4SBogdan Purcareata */ 306bd067c4SBogdan Purcareata int dprc_open(struct fsl_mc_io *mc_io, 316bd067c4SBogdan Purcareata u32 cmd_flags, 326bd067c4SBogdan Purcareata int container_id, 336bd067c4SBogdan Purcareata u16 *token) 346bd067c4SBogdan Purcareata { 355b04cedeSIoana Ciornei struct fsl_mc_command cmd = { 0 }; 366bd067c4SBogdan Purcareata struct dprc_cmd_open *cmd_params; 376bd067c4SBogdan Purcareata int err; 386bd067c4SBogdan Purcareata 396bd067c4SBogdan Purcareata /* prepare command */ 406bd067c4SBogdan Purcareata cmd.header = mc_encode_cmd_header(DPRC_CMDID_OPEN, cmd_flags, 416bd067c4SBogdan Purcareata 0); 426bd067c4SBogdan Purcareata cmd_params = (struct dprc_cmd_open *)cmd.params; 436bd067c4SBogdan Purcareata cmd_params->container_id = cpu_to_le32(container_id); 446bd067c4SBogdan Purcareata 456bd067c4SBogdan Purcareata /* send command to mc*/ 466bd067c4SBogdan Purcareata err = mc_send_command(mc_io, &cmd); 476bd067c4SBogdan Purcareata if (err) 486bd067c4SBogdan Purcareata return err; 496bd067c4SBogdan Purcareata 506bd067c4SBogdan Purcareata /* retrieve response parameters */ 516bd067c4SBogdan Purcareata *token = mc_cmd_hdr_read_token(&cmd); 526bd067c4SBogdan Purcareata 536bd067c4SBogdan Purcareata return 0; 546bd067c4SBogdan Purcareata } 556bd067c4SBogdan Purcareata EXPORT_SYMBOL_GPL(dprc_open); 566bd067c4SBogdan Purcareata 576bd067c4SBogdan Purcareata /** 586bd067c4SBogdan Purcareata * dprc_close() - Close the control session of the object 596bd067c4SBogdan Purcareata * @mc_io: Pointer to MC portal's I/O object 606bd067c4SBogdan Purcareata * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' 616bd067c4SBogdan Purcareata * @token: Token of DPRC object 626bd067c4SBogdan Purcareata * 636bd067c4SBogdan Purcareata * After this function is called, no further operations are 646bd067c4SBogdan Purcareata * allowed on the object without opening a new control session. 656bd067c4SBogdan Purcareata * 666bd067c4SBogdan Purcareata * Return: '0' on Success; Error code otherwise. 676bd067c4SBogdan Purcareata */ 686bd067c4SBogdan Purcareata int dprc_close(struct fsl_mc_io *mc_io, 696bd067c4SBogdan Purcareata u32 cmd_flags, 706bd067c4SBogdan Purcareata u16 token) 716bd067c4SBogdan Purcareata { 725b04cedeSIoana Ciornei struct fsl_mc_command cmd = { 0 }; 736bd067c4SBogdan Purcareata 746bd067c4SBogdan Purcareata /* prepare command */ 756bd067c4SBogdan Purcareata cmd.header = mc_encode_cmd_header(DPRC_CMDID_CLOSE, cmd_flags, 766bd067c4SBogdan Purcareata token); 776bd067c4SBogdan Purcareata 786bd067c4SBogdan Purcareata /* send command to mc*/ 796bd067c4SBogdan Purcareata return mc_send_command(mc_io, &cmd); 806bd067c4SBogdan Purcareata } 816bd067c4SBogdan Purcareata EXPORT_SYMBOL_GPL(dprc_close); 826bd067c4SBogdan Purcareata 836bd067c4SBogdan Purcareata /** 84715b02ceSBharat Bhushan * dprc_reset_container - Reset child container. 85715b02ceSBharat Bhushan * @mc_io: Pointer to MC portal's I/O object 86715b02ceSBharat Bhushan * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' 87715b02ceSBharat Bhushan * @token: Token of DPRC object 88715b02ceSBharat Bhushan * @child_container_id: ID of the container to reset 89715b02ceSBharat Bhushan * @options: 32 bit options: 90715b02ceSBharat Bhushan * - 0 (no bits set) - all the objects inside the container are 91715b02ceSBharat Bhushan * reset. The child containers are entered recursively and the 92715b02ceSBharat Bhushan * objects reset. All the objects (including the child containers) 93715b02ceSBharat Bhushan * are closed. 94715b02ceSBharat Bhushan * - bit 0 set - all the objects inside the container are reset. 95715b02ceSBharat Bhushan * However the child containers are not entered recursively. 96715b02ceSBharat Bhushan * This option is supported for API versions >= 6.5 97715b02ceSBharat Bhushan * In case a software context crashes or becomes non-responsive, the parent 98715b02ceSBharat Bhushan * may wish to reset its resources container before the software context is 99715b02ceSBharat Bhushan * restarted. 100715b02ceSBharat Bhushan * 101715b02ceSBharat Bhushan * This routine informs all objects assigned to the child container that the 102715b02ceSBharat Bhushan * container is being reset, so they may perform any cleanup operations that are 103715b02ceSBharat Bhushan * needed. All objects handles that were owned by the child container shall be 104715b02ceSBharat Bhushan * closed. 105715b02ceSBharat Bhushan * 106715b02ceSBharat Bhushan * Note that such request may be submitted even if the child software context 107715b02ceSBharat Bhushan * has not crashed, but the resulting object cleanup operations will not be 108715b02ceSBharat Bhushan * aware of that. 109715b02ceSBharat Bhushan * 110715b02ceSBharat Bhushan * Return: '0' on Success; Error code otherwise. 111715b02ceSBharat Bhushan */ 112715b02ceSBharat Bhushan int dprc_reset_container(struct fsl_mc_io *mc_io, 113715b02ceSBharat Bhushan u32 cmd_flags, 114715b02ceSBharat Bhushan u16 token, 115715b02ceSBharat Bhushan int child_container_id, 116715b02ceSBharat Bhushan u32 options) 117715b02ceSBharat Bhushan { 118715b02ceSBharat Bhushan struct fsl_mc_command cmd = { 0 }; 119715b02ceSBharat Bhushan struct dprc_cmd_reset_container *cmd_params; 120715b02ceSBharat Bhushan u32 cmdid = DPRC_CMDID_RESET_CONT; 121715b02ceSBharat Bhushan int err; 122715b02ceSBharat Bhushan 123715b02ceSBharat Bhushan /* 124715b02ceSBharat Bhushan * If the DPRC object version was not yet cached, cache it now. 125715b02ceSBharat Bhushan * Otherwise use the already cached value. 126715b02ceSBharat Bhushan */ 127715b02ceSBharat Bhushan if (!dprc_major_ver && !dprc_minor_ver) { 128715b02ceSBharat Bhushan err = dprc_get_api_version(mc_io, 0, 129715b02ceSBharat Bhushan &dprc_major_ver, 130715b02ceSBharat Bhushan &dprc_minor_ver); 131715b02ceSBharat Bhushan if (err) 132715b02ceSBharat Bhushan return err; 133715b02ceSBharat Bhushan } 134715b02ceSBharat Bhushan 135715b02ceSBharat Bhushan /* 136715b02ceSBharat Bhushan * MC API 6.5 introduced a new field in the command used to pass 137715b02ceSBharat Bhushan * some flags. 138715b02ceSBharat Bhushan * Bit 0 indicates that the child containers are not recursively reset. 139715b02ceSBharat Bhushan */ 140715b02ceSBharat Bhushan if (dprc_major_ver > 6 || (dprc_major_ver == 6 && dprc_minor_ver >= 5)) 141715b02ceSBharat Bhushan cmdid = DPRC_CMDID_RESET_CONT_V2; 142715b02ceSBharat Bhushan 143715b02ceSBharat Bhushan /* prepare command */ 144715b02ceSBharat Bhushan cmd.header = mc_encode_cmd_header(cmdid, cmd_flags, token); 145715b02ceSBharat Bhushan cmd_params = (struct dprc_cmd_reset_container *)cmd.params; 146715b02ceSBharat Bhushan cmd_params->child_container_id = cpu_to_le32(child_container_id); 147715b02ceSBharat Bhushan cmd_params->options = cpu_to_le32(options); 148715b02ceSBharat Bhushan 149715b02ceSBharat Bhushan /* send command to mc*/ 150715b02ceSBharat Bhushan return mc_send_command(mc_io, &cmd); 151715b02ceSBharat Bhushan } 152715b02ceSBharat Bhushan EXPORT_SYMBOL_GPL(dprc_reset_container); 153715b02ceSBharat Bhushan 154715b02ceSBharat Bhushan /** 1556bd067c4SBogdan Purcareata * dprc_set_irq() - Set IRQ information for the DPRC to trigger an interrupt. 1566bd067c4SBogdan Purcareata * @mc_io: Pointer to MC portal's I/O object 1576bd067c4SBogdan Purcareata * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' 1586bd067c4SBogdan Purcareata * @token: Token of DPRC object 1596bd067c4SBogdan Purcareata * @irq_index: Identifies the interrupt index to configure 1606bd067c4SBogdan Purcareata * @irq_cfg: IRQ configuration 1616bd067c4SBogdan Purcareata * 1626bd067c4SBogdan Purcareata * Return: '0' on Success; Error code otherwise. 1636bd067c4SBogdan Purcareata */ 1646bd067c4SBogdan Purcareata int dprc_set_irq(struct fsl_mc_io *mc_io, 1656bd067c4SBogdan Purcareata u32 cmd_flags, 1666bd067c4SBogdan Purcareata u16 token, 1676bd067c4SBogdan Purcareata u8 irq_index, 1686bd067c4SBogdan Purcareata struct dprc_irq_cfg *irq_cfg) 1696bd067c4SBogdan Purcareata { 1705b04cedeSIoana Ciornei struct fsl_mc_command cmd = { 0 }; 1716bd067c4SBogdan Purcareata struct dprc_cmd_set_irq *cmd_params; 1726bd067c4SBogdan Purcareata 1736bd067c4SBogdan Purcareata /* prepare command */ 1746bd067c4SBogdan Purcareata cmd.header = mc_encode_cmd_header(DPRC_CMDID_SET_IRQ, 1756bd067c4SBogdan Purcareata cmd_flags, 1766bd067c4SBogdan Purcareata token); 1776bd067c4SBogdan Purcareata cmd_params = (struct dprc_cmd_set_irq *)cmd.params; 1786bd067c4SBogdan Purcareata cmd_params->irq_val = cpu_to_le32(irq_cfg->val); 1796bd067c4SBogdan Purcareata cmd_params->irq_index = irq_index; 1806bd067c4SBogdan Purcareata cmd_params->irq_addr = cpu_to_le64(irq_cfg->paddr); 1816bd067c4SBogdan Purcareata cmd_params->irq_num = cpu_to_le32(irq_cfg->irq_num); 1826bd067c4SBogdan Purcareata 1836bd067c4SBogdan Purcareata /* send command to mc*/ 1846bd067c4SBogdan Purcareata return mc_send_command(mc_io, &cmd); 1856bd067c4SBogdan Purcareata } 1866bd067c4SBogdan Purcareata 1876bd067c4SBogdan Purcareata /** 1886bd067c4SBogdan Purcareata * dprc_set_irq_enable() - Set overall interrupt state. 1896bd067c4SBogdan Purcareata * @mc_io: Pointer to MC portal's I/O object 1906bd067c4SBogdan Purcareata * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' 1916bd067c4SBogdan Purcareata * @token: Token of DPRC object 1926bd067c4SBogdan Purcareata * @irq_index: The interrupt index to configure 1936bd067c4SBogdan Purcareata * @en: Interrupt state - enable = 1, disable = 0 1946bd067c4SBogdan Purcareata * 1956bd067c4SBogdan Purcareata * Allows GPP software to control when interrupts are generated. 1966bd067c4SBogdan Purcareata * Each interrupt can have up to 32 causes. The enable/disable control's the 1976bd067c4SBogdan Purcareata * overall interrupt state. if the interrupt is disabled no causes will cause 1986bd067c4SBogdan Purcareata * an interrupt. 1996bd067c4SBogdan Purcareata * 2006bd067c4SBogdan Purcareata * Return: '0' on Success; Error code otherwise. 2016bd067c4SBogdan Purcareata */ 2026bd067c4SBogdan Purcareata int dprc_set_irq_enable(struct fsl_mc_io *mc_io, 2036bd067c4SBogdan Purcareata u32 cmd_flags, 2046bd067c4SBogdan Purcareata u16 token, 2056bd067c4SBogdan Purcareata u8 irq_index, 2066bd067c4SBogdan Purcareata u8 en) 2076bd067c4SBogdan Purcareata { 2085b04cedeSIoana Ciornei struct fsl_mc_command cmd = { 0 }; 2096bd067c4SBogdan Purcareata struct dprc_cmd_set_irq_enable *cmd_params; 2106bd067c4SBogdan Purcareata 2116bd067c4SBogdan Purcareata /* prepare command */ 2126bd067c4SBogdan Purcareata cmd.header = mc_encode_cmd_header(DPRC_CMDID_SET_IRQ_ENABLE, 2136bd067c4SBogdan Purcareata cmd_flags, token); 2146bd067c4SBogdan Purcareata cmd_params = (struct dprc_cmd_set_irq_enable *)cmd.params; 2156bd067c4SBogdan Purcareata cmd_params->enable = en & DPRC_ENABLE; 2166bd067c4SBogdan Purcareata cmd_params->irq_index = irq_index; 2176bd067c4SBogdan Purcareata 2186bd067c4SBogdan Purcareata /* send command to mc*/ 2196bd067c4SBogdan Purcareata return mc_send_command(mc_io, &cmd); 2206bd067c4SBogdan Purcareata } 2216bd067c4SBogdan Purcareata 2226bd067c4SBogdan Purcareata /** 2236bd067c4SBogdan Purcareata * dprc_set_irq_mask() - Set interrupt mask. 2246bd067c4SBogdan Purcareata * @mc_io: Pointer to MC portal's I/O object 2256bd067c4SBogdan Purcareata * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' 2266bd067c4SBogdan Purcareata * @token: Token of DPRC object 2276bd067c4SBogdan Purcareata * @irq_index: The interrupt index to configure 2286bd067c4SBogdan Purcareata * @mask: event mask to trigger interrupt; 2296bd067c4SBogdan Purcareata * each bit: 2306bd067c4SBogdan Purcareata * 0 = ignore event 2316bd067c4SBogdan Purcareata * 1 = consider event for asserting irq 2326bd067c4SBogdan Purcareata * 2336bd067c4SBogdan Purcareata * Every interrupt can have up to 32 causes and the interrupt model supports 2346bd067c4SBogdan Purcareata * masking/unmasking each cause independently 2356bd067c4SBogdan Purcareata * 2366bd067c4SBogdan Purcareata * Return: '0' on Success; Error code otherwise. 2376bd067c4SBogdan Purcareata */ 2386bd067c4SBogdan Purcareata int dprc_set_irq_mask(struct fsl_mc_io *mc_io, 2396bd067c4SBogdan Purcareata u32 cmd_flags, 2406bd067c4SBogdan Purcareata u16 token, 2416bd067c4SBogdan Purcareata u8 irq_index, 2426bd067c4SBogdan Purcareata u32 mask) 2436bd067c4SBogdan Purcareata { 2445b04cedeSIoana Ciornei struct fsl_mc_command cmd = { 0 }; 2456bd067c4SBogdan Purcareata struct dprc_cmd_set_irq_mask *cmd_params; 2466bd067c4SBogdan Purcareata 2476bd067c4SBogdan Purcareata /* prepare command */ 2486bd067c4SBogdan Purcareata cmd.header = mc_encode_cmd_header(DPRC_CMDID_SET_IRQ_MASK, 2496bd067c4SBogdan Purcareata cmd_flags, token); 2506bd067c4SBogdan Purcareata cmd_params = (struct dprc_cmd_set_irq_mask *)cmd.params; 2516bd067c4SBogdan Purcareata cmd_params->mask = cpu_to_le32(mask); 2526bd067c4SBogdan Purcareata cmd_params->irq_index = irq_index; 2536bd067c4SBogdan Purcareata 2546bd067c4SBogdan Purcareata /* send command to mc*/ 2556bd067c4SBogdan Purcareata return mc_send_command(mc_io, &cmd); 2566bd067c4SBogdan Purcareata } 2576bd067c4SBogdan Purcareata 2586bd067c4SBogdan Purcareata /** 2596bd067c4SBogdan Purcareata * dprc_get_irq_status() - Get the current status of any pending interrupts. 2606bd067c4SBogdan Purcareata * @mc_io: Pointer to MC portal's I/O object 2616bd067c4SBogdan Purcareata * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' 2626bd067c4SBogdan Purcareata * @token: Token of DPRC object 2636bd067c4SBogdan Purcareata * @irq_index: The interrupt index to configure 2646bd067c4SBogdan Purcareata * @status: Returned interrupts status - one bit per cause: 2656bd067c4SBogdan Purcareata * 0 = no interrupt pending 2666bd067c4SBogdan Purcareata * 1 = interrupt pending 2676bd067c4SBogdan Purcareata * 2686bd067c4SBogdan Purcareata * Return: '0' on Success; Error code otherwise. 2696bd067c4SBogdan Purcareata */ 2706bd067c4SBogdan Purcareata int dprc_get_irq_status(struct fsl_mc_io *mc_io, 2716bd067c4SBogdan Purcareata u32 cmd_flags, 2726bd067c4SBogdan Purcareata u16 token, 2736bd067c4SBogdan Purcareata u8 irq_index, 2746bd067c4SBogdan Purcareata u32 *status) 2756bd067c4SBogdan Purcareata { 2765b04cedeSIoana Ciornei struct fsl_mc_command cmd = { 0 }; 2776bd067c4SBogdan Purcareata struct dprc_cmd_get_irq_status *cmd_params; 2786bd067c4SBogdan Purcareata struct dprc_rsp_get_irq_status *rsp_params; 2796bd067c4SBogdan Purcareata int err; 2806bd067c4SBogdan Purcareata 2816bd067c4SBogdan Purcareata /* prepare command */ 2826bd067c4SBogdan Purcareata cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_IRQ_STATUS, 2836bd067c4SBogdan Purcareata cmd_flags, token); 2846bd067c4SBogdan Purcareata cmd_params = (struct dprc_cmd_get_irq_status *)cmd.params; 2856bd067c4SBogdan Purcareata cmd_params->status = cpu_to_le32(*status); 2866bd067c4SBogdan Purcareata cmd_params->irq_index = irq_index; 2876bd067c4SBogdan Purcareata 2886bd067c4SBogdan Purcareata /* send command to mc*/ 2896bd067c4SBogdan Purcareata err = mc_send_command(mc_io, &cmd); 2906bd067c4SBogdan Purcareata if (err) 2916bd067c4SBogdan Purcareata return err; 2926bd067c4SBogdan Purcareata 2936bd067c4SBogdan Purcareata /* retrieve response parameters */ 2946bd067c4SBogdan Purcareata rsp_params = (struct dprc_rsp_get_irq_status *)cmd.params; 2956bd067c4SBogdan Purcareata *status = le32_to_cpu(rsp_params->status); 2966bd067c4SBogdan Purcareata 2976bd067c4SBogdan Purcareata return 0; 2986bd067c4SBogdan Purcareata } 2996bd067c4SBogdan Purcareata 3006bd067c4SBogdan Purcareata /** 3016bd067c4SBogdan Purcareata * dprc_clear_irq_status() - Clear a pending interrupt's status 3026bd067c4SBogdan Purcareata * @mc_io: Pointer to MC portal's I/O object 3036bd067c4SBogdan Purcareata * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' 3046bd067c4SBogdan Purcareata * @token: Token of DPRC object 3056bd067c4SBogdan Purcareata * @irq_index: The interrupt index to configure 3066bd067c4SBogdan Purcareata * @status: bits to clear (W1C) - one bit per cause: 3076bd067c4SBogdan Purcareata * 0 = don't change 3086bd067c4SBogdan Purcareata * 1 = clear status bit 3096bd067c4SBogdan Purcareata * 3106bd067c4SBogdan Purcareata * Return: '0' on Success; Error code otherwise. 3116bd067c4SBogdan Purcareata */ 3126bd067c4SBogdan Purcareata int dprc_clear_irq_status(struct fsl_mc_io *mc_io, 3136bd067c4SBogdan Purcareata u32 cmd_flags, 3146bd067c4SBogdan Purcareata u16 token, 3156bd067c4SBogdan Purcareata u8 irq_index, 3166bd067c4SBogdan Purcareata u32 status) 3176bd067c4SBogdan Purcareata { 3185b04cedeSIoana Ciornei struct fsl_mc_command cmd = { 0 }; 3196bd067c4SBogdan Purcareata struct dprc_cmd_clear_irq_status *cmd_params; 3206bd067c4SBogdan Purcareata 3216bd067c4SBogdan Purcareata /* prepare command */ 3226bd067c4SBogdan Purcareata cmd.header = mc_encode_cmd_header(DPRC_CMDID_CLEAR_IRQ_STATUS, 3236bd067c4SBogdan Purcareata cmd_flags, token); 3246bd067c4SBogdan Purcareata cmd_params = (struct dprc_cmd_clear_irq_status *)cmd.params; 3256bd067c4SBogdan Purcareata cmd_params->status = cpu_to_le32(status); 3266bd067c4SBogdan Purcareata cmd_params->irq_index = irq_index; 3276bd067c4SBogdan Purcareata 3286bd067c4SBogdan Purcareata /* send command to mc*/ 3296bd067c4SBogdan Purcareata return mc_send_command(mc_io, &cmd); 3306bd067c4SBogdan Purcareata } 3316bd067c4SBogdan Purcareata 3326bd067c4SBogdan Purcareata /** 3336bd067c4SBogdan Purcareata * dprc_get_attributes() - Obtains container attributes 3346bd067c4SBogdan Purcareata * @mc_io: Pointer to MC portal's I/O object 3356bd067c4SBogdan Purcareata * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' 3366bd067c4SBogdan Purcareata * @token: Token of DPRC object 3376bd067c4SBogdan Purcareata * @attributes Returned container attributes 3386bd067c4SBogdan Purcareata * 3396bd067c4SBogdan Purcareata * Return: '0' on Success; Error code otherwise. 3406bd067c4SBogdan Purcareata */ 3416bd067c4SBogdan Purcareata int dprc_get_attributes(struct fsl_mc_io *mc_io, 3426bd067c4SBogdan Purcareata u32 cmd_flags, 3436bd067c4SBogdan Purcareata u16 token, 3446bd067c4SBogdan Purcareata struct dprc_attributes *attr) 3456bd067c4SBogdan Purcareata { 3465b04cedeSIoana Ciornei struct fsl_mc_command cmd = { 0 }; 3476bd067c4SBogdan Purcareata struct dprc_rsp_get_attributes *rsp_params; 3486bd067c4SBogdan Purcareata int err; 3496bd067c4SBogdan Purcareata 3506bd067c4SBogdan Purcareata /* prepare command */ 3516bd067c4SBogdan Purcareata cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_ATTR, 3526bd067c4SBogdan Purcareata cmd_flags, 3536bd067c4SBogdan Purcareata token); 3546bd067c4SBogdan Purcareata 3556bd067c4SBogdan Purcareata /* send command to mc*/ 3566bd067c4SBogdan Purcareata err = mc_send_command(mc_io, &cmd); 3576bd067c4SBogdan Purcareata if (err) 3586bd067c4SBogdan Purcareata return err; 3596bd067c4SBogdan Purcareata 3606bd067c4SBogdan Purcareata /* retrieve response parameters */ 3616bd067c4SBogdan Purcareata rsp_params = (struct dprc_rsp_get_attributes *)cmd.params; 3626bd067c4SBogdan Purcareata attr->container_id = le32_to_cpu(rsp_params->container_id); 363273ee53dSBharat Bhushan attr->icid = le32_to_cpu(rsp_params->icid); 3646bd067c4SBogdan Purcareata attr->options = le32_to_cpu(rsp_params->options); 3656bd067c4SBogdan Purcareata attr->portal_id = le32_to_cpu(rsp_params->portal_id); 3666bd067c4SBogdan Purcareata 3676bd067c4SBogdan Purcareata return 0; 3686bd067c4SBogdan Purcareata } 3696bd067c4SBogdan Purcareata 3706bd067c4SBogdan Purcareata /** 3716bd067c4SBogdan Purcareata * dprc_get_obj_count() - Obtains the number of objects in the DPRC 3726bd067c4SBogdan Purcareata * @mc_io: Pointer to MC portal's I/O object 3736bd067c4SBogdan Purcareata * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' 3746bd067c4SBogdan Purcareata * @token: Token of DPRC object 3756bd067c4SBogdan Purcareata * @obj_count: Number of objects assigned to the DPRC 3766bd067c4SBogdan Purcareata * 3776bd067c4SBogdan Purcareata * Return: '0' on Success; Error code otherwise. 3786bd067c4SBogdan Purcareata */ 3796bd067c4SBogdan Purcareata int dprc_get_obj_count(struct fsl_mc_io *mc_io, 3806bd067c4SBogdan Purcareata u32 cmd_flags, 3816bd067c4SBogdan Purcareata u16 token, 3826bd067c4SBogdan Purcareata int *obj_count) 3836bd067c4SBogdan Purcareata { 3845b04cedeSIoana Ciornei struct fsl_mc_command cmd = { 0 }; 3856bd067c4SBogdan Purcareata struct dprc_rsp_get_obj_count *rsp_params; 3866bd067c4SBogdan Purcareata int err; 3876bd067c4SBogdan Purcareata 3886bd067c4SBogdan Purcareata /* prepare command */ 3896bd067c4SBogdan Purcareata cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_OBJ_COUNT, 3906bd067c4SBogdan Purcareata cmd_flags, token); 3916bd067c4SBogdan Purcareata 3926bd067c4SBogdan Purcareata /* send command to mc*/ 3936bd067c4SBogdan Purcareata err = mc_send_command(mc_io, &cmd); 3946bd067c4SBogdan Purcareata if (err) 3956bd067c4SBogdan Purcareata return err; 3966bd067c4SBogdan Purcareata 3976bd067c4SBogdan Purcareata /* retrieve response parameters */ 3986bd067c4SBogdan Purcareata rsp_params = (struct dprc_rsp_get_obj_count *)cmd.params; 3996bd067c4SBogdan Purcareata *obj_count = le32_to_cpu(rsp_params->obj_count); 4006bd067c4SBogdan Purcareata 4016bd067c4SBogdan Purcareata return 0; 4026bd067c4SBogdan Purcareata } 4036bd067c4SBogdan Purcareata EXPORT_SYMBOL_GPL(dprc_get_obj_count); 4046bd067c4SBogdan Purcareata 4056bd067c4SBogdan Purcareata /** 4066bd067c4SBogdan Purcareata * dprc_get_obj() - Get general information on an object 4076bd067c4SBogdan Purcareata * @mc_io: Pointer to MC portal's I/O object 4086bd067c4SBogdan Purcareata * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' 4096bd067c4SBogdan Purcareata * @token: Token of DPRC object 4106bd067c4SBogdan Purcareata * @obj_index: Index of the object to be queried (< obj_count) 4116bd067c4SBogdan Purcareata * @obj_desc: Returns the requested object descriptor 4126bd067c4SBogdan Purcareata * 4136bd067c4SBogdan Purcareata * The object descriptors are retrieved one by one by incrementing 4146bd067c4SBogdan Purcareata * obj_index up to (not including) the value of obj_count returned 4156bd067c4SBogdan Purcareata * from dprc_get_obj_count(). dprc_get_obj_count() must 4166bd067c4SBogdan Purcareata * be called prior to dprc_get_obj(). 4176bd067c4SBogdan Purcareata * 4186bd067c4SBogdan Purcareata * Return: '0' on Success; Error code otherwise. 4196bd067c4SBogdan Purcareata */ 4206bd067c4SBogdan Purcareata int dprc_get_obj(struct fsl_mc_io *mc_io, 4216bd067c4SBogdan Purcareata u32 cmd_flags, 4226bd067c4SBogdan Purcareata u16 token, 4236bd067c4SBogdan Purcareata int obj_index, 4246bd067c4SBogdan Purcareata struct fsl_mc_obj_desc *obj_desc) 4256bd067c4SBogdan Purcareata { 4265b04cedeSIoana Ciornei struct fsl_mc_command cmd = { 0 }; 4276bd067c4SBogdan Purcareata struct dprc_cmd_get_obj *cmd_params; 4286bd067c4SBogdan Purcareata struct dprc_rsp_get_obj *rsp_params; 4296bd067c4SBogdan Purcareata int err; 4306bd067c4SBogdan Purcareata 4316bd067c4SBogdan Purcareata /* prepare command */ 4326bd067c4SBogdan Purcareata cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_OBJ, 4336bd067c4SBogdan Purcareata cmd_flags, 4346bd067c4SBogdan Purcareata token); 4356bd067c4SBogdan Purcareata cmd_params = (struct dprc_cmd_get_obj *)cmd.params; 4366bd067c4SBogdan Purcareata cmd_params->obj_index = cpu_to_le32(obj_index); 4376bd067c4SBogdan Purcareata 4386bd067c4SBogdan Purcareata /* send command to mc*/ 4396bd067c4SBogdan Purcareata err = mc_send_command(mc_io, &cmd); 4406bd067c4SBogdan Purcareata if (err) 4416bd067c4SBogdan Purcareata return err; 4426bd067c4SBogdan Purcareata 4436bd067c4SBogdan Purcareata /* retrieve response parameters */ 4446bd067c4SBogdan Purcareata rsp_params = (struct dprc_rsp_get_obj *)cmd.params; 4456bd067c4SBogdan Purcareata obj_desc->id = le32_to_cpu(rsp_params->id); 4466bd067c4SBogdan Purcareata obj_desc->vendor = le16_to_cpu(rsp_params->vendor); 4476bd067c4SBogdan Purcareata obj_desc->irq_count = rsp_params->irq_count; 4486bd067c4SBogdan Purcareata obj_desc->region_count = rsp_params->region_count; 4496bd067c4SBogdan Purcareata obj_desc->state = le32_to_cpu(rsp_params->state); 4506bd067c4SBogdan Purcareata obj_desc->ver_major = le16_to_cpu(rsp_params->version_major); 4516bd067c4SBogdan Purcareata obj_desc->ver_minor = le16_to_cpu(rsp_params->version_minor); 4526bd067c4SBogdan Purcareata obj_desc->flags = le16_to_cpu(rsp_params->flags); 4536bd067c4SBogdan Purcareata strncpy(obj_desc->type, rsp_params->type, 16); 4546bd067c4SBogdan Purcareata obj_desc->type[15] = '\0'; 4556bd067c4SBogdan Purcareata strncpy(obj_desc->label, rsp_params->label, 16); 4566bd067c4SBogdan Purcareata obj_desc->label[15] = '\0'; 4576bd067c4SBogdan Purcareata return 0; 4586bd067c4SBogdan Purcareata } 4596bd067c4SBogdan Purcareata EXPORT_SYMBOL_GPL(dprc_get_obj); 4606bd067c4SBogdan Purcareata 4616bd067c4SBogdan Purcareata /** 4626bd067c4SBogdan Purcareata * dprc_set_obj_irq() - Set IRQ information for object to trigger an interrupt. 4636bd067c4SBogdan Purcareata * @mc_io: Pointer to MC portal's I/O object 4646bd067c4SBogdan Purcareata * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' 4656bd067c4SBogdan Purcareata * @token: Token of DPRC object 4666bd067c4SBogdan Purcareata * @obj_type: Type of the object to set its IRQ 4676bd067c4SBogdan Purcareata * @obj_id: ID of the object to set its IRQ 4686bd067c4SBogdan Purcareata * @irq_index: The interrupt index to configure 4696bd067c4SBogdan Purcareata * @irq_cfg: IRQ configuration 4706bd067c4SBogdan Purcareata * 4716bd067c4SBogdan Purcareata * Return: '0' on Success; Error code otherwise. 4726bd067c4SBogdan Purcareata */ 4736bd067c4SBogdan Purcareata int dprc_set_obj_irq(struct fsl_mc_io *mc_io, 4746bd067c4SBogdan Purcareata u32 cmd_flags, 4756bd067c4SBogdan Purcareata u16 token, 4766bd067c4SBogdan Purcareata char *obj_type, 4776bd067c4SBogdan Purcareata int obj_id, 4786bd067c4SBogdan Purcareata u8 irq_index, 4796bd067c4SBogdan Purcareata struct dprc_irq_cfg *irq_cfg) 4806bd067c4SBogdan Purcareata { 4815b04cedeSIoana Ciornei struct fsl_mc_command cmd = { 0 }; 4826bd067c4SBogdan Purcareata struct dprc_cmd_set_obj_irq *cmd_params; 4836bd067c4SBogdan Purcareata 4846bd067c4SBogdan Purcareata /* prepare command */ 4856bd067c4SBogdan Purcareata cmd.header = mc_encode_cmd_header(DPRC_CMDID_SET_OBJ_IRQ, 4866bd067c4SBogdan Purcareata cmd_flags, 4876bd067c4SBogdan Purcareata token); 4886bd067c4SBogdan Purcareata cmd_params = (struct dprc_cmd_set_obj_irq *)cmd.params; 4896bd067c4SBogdan Purcareata cmd_params->irq_val = cpu_to_le32(irq_cfg->val); 4906bd067c4SBogdan Purcareata cmd_params->irq_index = irq_index; 4916bd067c4SBogdan Purcareata cmd_params->irq_addr = cpu_to_le64(irq_cfg->paddr); 4926bd067c4SBogdan Purcareata cmd_params->irq_num = cpu_to_le32(irq_cfg->irq_num); 4936bd067c4SBogdan Purcareata cmd_params->obj_id = cpu_to_le32(obj_id); 4946bd067c4SBogdan Purcareata strncpy(cmd_params->obj_type, obj_type, 16); 4956bd067c4SBogdan Purcareata cmd_params->obj_type[15] = '\0'; 4966bd067c4SBogdan Purcareata 4976bd067c4SBogdan Purcareata /* send command to mc*/ 4986bd067c4SBogdan Purcareata return mc_send_command(mc_io, &cmd); 4996bd067c4SBogdan Purcareata } 5006bd067c4SBogdan Purcareata EXPORT_SYMBOL_GPL(dprc_set_obj_irq); 5016bd067c4SBogdan Purcareata 5026bd067c4SBogdan Purcareata /** 5036bd067c4SBogdan Purcareata * dprc_get_obj_region() - Get region information for a specified object. 5046bd067c4SBogdan Purcareata * @mc_io: Pointer to MC portal's I/O object 5056bd067c4SBogdan Purcareata * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' 5066bd067c4SBogdan Purcareata * @token: Token of DPRC object 5076bd067c4SBogdan Purcareata * @obj_type; Object type as returned in dprc_get_obj() 5086bd067c4SBogdan Purcareata * @obj_id: Unique object instance as returned in dprc_get_obj() 5096bd067c4SBogdan Purcareata * @region_index: The specific region to query 5106bd067c4SBogdan Purcareata * @region_desc: Returns the requested region descriptor 5116bd067c4SBogdan Purcareata * 5126bd067c4SBogdan Purcareata * Return: '0' on Success; Error code otherwise. 5136bd067c4SBogdan Purcareata */ 5146bd067c4SBogdan Purcareata int dprc_get_obj_region(struct fsl_mc_io *mc_io, 5156bd067c4SBogdan Purcareata u32 cmd_flags, 5166bd067c4SBogdan Purcareata u16 token, 5176bd067c4SBogdan Purcareata char *obj_type, 5186bd067c4SBogdan Purcareata int obj_id, 5196bd067c4SBogdan Purcareata u8 region_index, 5206bd067c4SBogdan Purcareata struct dprc_region_desc *region_desc) 5216bd067c4SBogdan Purcareata { 5225b04cedeSIoana Ciornei struct fsl_mc_command cmd = { 0 }; 5236bd067c4SBogdan Purcareata struct dprc_cmd_get_obj_region *cmd_params; 5246bd067c4SBogdan Purcareata struct dprc_rsp_get_obj_region *rsp_params; 5256bd067c4SBogdan Purcareata int err; 5266bd067c4SBogdan Purcareata 527993577b2SDiana Craciun /* 528993577b2SDiana Craciun * If the DPRC object version was not yet cached, cache it now. 529993577b2SDiana Craciun * Otherwise use the already cached value. 530993577b2SDiana Craciun */ 531993577b2SDiana Craciun if (!dprc_major_ver && !dprc_minor_ver) { 532dde2137dSRoy Pledge err = dprc_get_api_version(mc_io, 0, 533993577b2SDiana Craciun &dprc_major_ver, 534993577b2SDiana Craciun &dprc_minor_ver); 535dde2137dSRoy Pledge if (err) 536dde2137dSRoy Pledge return err; 537993577b2SDiana Craciun } 538dde2137dSRoy Pledge 539d8ccb6d8SDiana Craciun if (dprc_major_ver > 6 || (dprc_major_ver == 6 && dprc_minor_ver >= 6)) { 540d8ccb6d8SDiana Craciun /* 541d8ccb6d8SDiana Craciun * MC API version 6.6 changed the size of the MC portals and software 542d8ccb6d8SDiana Craciun * portals to 64K (as implemented by hardware). If older API is in use the 543d8ccb6d8SDiana Craciun * size reported is less (64 bytes for mc portals and 4K for software 544d8ccb6d8SDiana Craciun * portals). 545d8ccb6d8SDiana Craciun */ 546d8ccb6d8SDiana Craciun 547d8ccb6d8SDiana Craciun cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_OBJ_REG_V3, 548d8ccb6d8SDiana Craciun cmd_flags, token); 549d8ccb6d8SDiana Craciun 550d8ccb6d8SDiana Craciun } else if (dprc_major_ver == 6 && dprc_minor_ver >= 3) { 551d8ccb6d8SDiana Craciun /* 552dde2137dSRoy Pledge * MC API version 6.3 introduced a new field to the region 553dde2137dSRoy Pledge * descriptor: base_address. If the older API is in use then the base 554dde2137dSRoy Pledge * address is set to zero to indicate it needs to be obtained elsewhere 555dde2137dSRoy Pledge * (typically the device tree). 556dde2137dSRoy Pledge */ 557d8ccb6d8SDiana Craciun cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_OBJ_REG_V2, 5586bd067c4SBogdan Purcareata cmd_flags, token); 559d8ccb6d8SDiana Craciun } else { 560d8ccb6d8SDiana Craciun cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_OBJ_REG, 561dde2137dSRoy Pledge cmd_flags, token); 562d8ccb6d8SDiana Craciun } 563dde2137dSRoy Pledge 5646bd067c4SBogdan Purcareata cmd_params = (struct dprc_cmd_get_obj_region *)cmd.params; 5656bd067c4SBogdan Purcareata cmd_params->obj_id = cpu_to_le32(obj_id); 5666bd067c4SBogdan Purcareata cmd_params->region_index = region_index; 5676bd067c4SBogdan Purcareata strncpy(cmd_params->obj_type, obj_type, 16); 5686bd067c4SBogdan Purcareata cmd_params->obj_type[15] = '\0'; 5696bd067c4SBogdan Purcareata 5706bd067c4SBogdan Purcareata /* send command to mc*/ 5716bd067c4SBogdan Purcareata err = mc_send_command(mc_io, &cmd); 5726bd067c4SBogdan Purcareata if (err) 5736bd067c4SBogdan Purcareata return err; 5746bd067c4SBogdan Purcareata 5756bd067c4SBogdan Purcareata /* retrieve response parameters */ 5766bd067c4SBogdan Purcareata rsp_params = (struct dprc_rsp_get_obj_region *)cmd.params; 577dde2137dSRoy Pledge region_desc->base_offset = le64_to_cpu(rsp_params->base_offset); 5786bd067c4SBogdan Purcareata region_desc->size = le32_to_cpu(rsp_params->size); 579993577b2SDiana Craciun if (dprc_major_ver > 6 || (dprc_major_ver == 6 && dprc_minor_ver >= 3)) 580dde2137dSRoy Pledge region_desc->base_address = le64_to_cpu(rsp_params->base_addr); 581dde2137dSRoy Pledge else 582dde2137dSRoy Pledge region_desc->base_address = 0; 5836bd067c4SBogdan Purcareata 5846bd067c4SBogdan Purcareata return 0; 5856bd067c4SBogdan Purcareata } 5866bd067c4SBogdan Purcareata EXPORT_SYMBOL_GPL(dprc_get_obj_region); 5876bd067c4SBogdan Purcareata 5886bd067c4SBogdan Purcareata /** 5896bd067c4SBogdan Purcareata * dprc_get_api_version - Get Data Path Resource Container API version 5906bd067c4SBogdan Purcareata * @mc_io: Pointer to Mc portal's I/O object 5916bd067c4SBogdan Purcareata * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' 5926bd067c4SBogdan Purcareata * @major_ver: Major version of Data Path Resource Container API 5936bd067c4SBogdan Purcareata * @minor_ver: Minor version of Data Path Resource Container API 5946bd067c4SBogdan Purcareata * 5956bd067c4SBogdan Purcareata * Return: '0' on Success; Error code otherwise. 5966bd067c4SBogdan Purcareata */ 5976bd067c4SBogdan Purcareata int dprc_get_api_version(struct fsl_mc_io *mc_io, 5986bd067c4SBogdan Purcareata u32 cmd_flags, 5996bd067c4SBogdan Purcareata u16 *major_ver, 6006bd067c4SBogdan Purcareata u16 *minor_ver) 6016bd067c4SBogdan Purcareata { 6025b04cedeSIoana Ciornei struct fsl_mc_command cmd = { 0 }; 6036bd067c4SBogdan Purcareata int err; 6046bd067c4SBogdan Purcareata 6056bd067c4SBogdan Purcareata /* prepare command */ 6066bd067c4SBogdan Purcareata cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_API_VERSION, 6076bd067c4SBogdan Purcareata cmd_flags, 0); 6086bd067c4SBogdan Purcareata 6096bd067c4SBogdan Purcareata /* send command to mc */ 6106bd067c4SBogdan Purcareata err = mc_send_command(mc_io, &cmd); 6116bd067c4SBogdan Purcareata if (err) 6126bd067c4SBogdan Purcareata return err; 6136bd067c4SBogdan Purcareata 6146bd067c4SBogdan Purcareata /* retrieve response parameters */ 6156bd067c4SBogdan Purcareata mc_cmd_read_api_version(&cmd, major_ver, minor_ver); 6166bd067c4SBogdan Purcareata 6176bd067c4SBogdan Purcareata return 0; 6186bd067c4SBogdan Purcareata } 6196bd067c4SBogdan Purcareata 6206bd067c4SBogdan Purcareata /** 6216bd067c4SBogdan Purcareata * dprc_get_container_id - Get container ID associated with a given portal. 6226bd067c4SBogdan Purcareata * @mc_io: Pointer to Mc portal's I/O object 6236bd067c4SBogdan Purcareata * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' 6246bd067c4SBogdan Purcareata * @container_id: Requested container id 6256bd067c4SBogdan Purcareata * 6266bd067c4SBogdan Purcareata * Return: '0' on Success; Error code otherwise. 6276bd067c4SBogdan Purcareata */ 6286bd067c4SBogdan Purcareata int dprc_get_container_id(struct fsl_mc_io *mc_io, 6296bd067c4SBogdan Purcareata u32 cmd_flags, 6306bd067c4SBogdan Purcareata int *container_id) 6316bd067c4SBogdan Purcareata { 6325b04cedeSIoana Ciornei struct fsl_mc_command cmd = { 0 }; 6336bd067c4SBogdan Purcareata int err; 6346bd067c4SBogdan Purcareata 6356bd067c4SBogdan Purcareata /* prepare command */ 6366bd067c4SBogdan Purcareata cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_CONT_ID, 6376bd067c4SBogdan Purcareata cmd_flags, 6386bd067c4SBogdan Purcareata 0); 6396bd067c4SBogdan Purcareata 6406bd067c4SBogdan Purcareata /* send command to mc*/ 6416bd067c4SBogdan Purcareata err = mc_send_command(mc_io, &cmd); 6426bd067c4SBogdan Purcareata if (err) 6436bd067c4SBogdan Purcareata return err; 6446bd067c4SBogdan Purcareata 6456bd067c4SBogdan Purcareata /* retrieve response parameters */ 6466bd067c4SBogdan Purcareata *container_id = (int)mc_cmd_read_object_id(&cmd); 6476bd067c4SBogdan Purcareata 6486bd067c4SBogdan Purcareata return 0; 6496bd067c4SBogdan Purcareata } 6501ac210d1SIoana Ciornei 6511ac210d1SIoana Ciornei /** 6521ac210d1SIoana Ciornei * dprc_get_connection() - Get connected endpoint and link status if connection 6531ac210d1SIoana Ciornei * exists. 6541ac210d1SIoana Ciornei * @mc_io: Pointer to MC portal's I/O object 6551ac210d1SIoana Ciornei * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' 6561ac210d1SIoana Ciornei * @token: Token of DPRC object 6571ac210d1SIoana Ciornei * @endpoint1: Endpoint 1 configuration parameters 6581ac210d1SIoana Ciornei * @endpoint2: Returned endpoint 2 configuration parameters 6591ac210d1SIoana Ciornei * @state: Returned link state: 6601ac210d1SIoana Ciornei * 1 - link is up; 6611ac210d1SIoana Ciornei * 0 - link is down; 6621ac210d1SIoana Ciornei * -1 - no connection (endpoint2 information is irrelevant) 6631ac210d1SIoana Ciornei * 6641ac210d1SIoana Ciornei * Return: '0' on Success; -ENOTCONN if connection does not exist. 6651ac210d1SIoana Ciornei */ 6661ac210d1SIoana Ciornei int dprc_get_connection(struct fsl_mc_io *mc_io, 6671ac210d1SIoana Ciornei u32 cmd_flags, 6681ac210d1SIoana Ciornei u16 token, 6691ac210d1SIoana Ciornei const struct dprc_endpoint *endpoint1, 6701ac210d1SIoana Ciornei struct dprc_endpoint *endpoint2, 6711ac210d1SIoana Ciornei int *state) 6721ac210d1SIoana Ciornei { 6731ac210d1SIoana Ciornei struct dprc_cmd_get_connection *cmd_params; 6741ac210d1SIoana Ciornei struct dprc_rsp_get_connection *rsp_params; 6751ac210d1SIoana Ciornei struct fsl_mc_command cmd = { 0 }; 6761ac210d1SIoana Ciornei int err, i; 6771ac210d1SIoana Ciornei 6781ac210d1SIoana Ciornei /* prepare command */ 6791ac210d1SIoana Ciornei cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_CONNECTION, 6801ac210d1SIoana Ciornei cmd_flags, 6811ac210d1SIoana Ciornei token); 6821ac210d1SIoana Ciornei cmd_params = (struct dprc_cmd_get_connection *)cmd.params; 6831ac210d1SIoana Ciornei cmd_params->ep1_id = cpu_to_le32(endpoint1->id); 6841ac210d1SIoana Ciornei cmd_params->ep1_interface_id = cpu_to_le16(endpoint1->if_id); 6851ac210d1SIoana Ciornei for (i = 0; i < 16; i++) 6861ac210d1SIoana Ciornei cmd_params->ep1_type[i] = endpoint1->type[i]; 6871ac210d1SIoana Ciornei 6881ac210d1SIoana Ciornei /* send command to mc */ 6891ac210d1SIoana Ciornei err = mc_send_command(mc_io, &cmd); 6901ac210d1SIoana Ciornei if (err) 6911ac210d1SIoana Ciornei return -ENOTCONN; 6921ac210d1SIoana Ciornei 6931ac210d1SIoana Ciornei /* retrieve response parameters */ 6941ac210d1SIoana Ciornei rsp_params = (struct dprc_rsp_get_connection *)cmd.params; 6951ac210d1SIoana Ciornei endpoint2->id = le32_to_cpu(rsp_params->ep2_id); 6961ac210d1SIoana Ciornei endpoint2->if_id = le16_to_cpu(rsp_params->ep2_interface_id); 6971ac210d1SIoana Ciornei *state = le32_to_cpu(rsp_params->state); 6981ac210d1SIoana Ciornei for (i = 0; i < 16; i++) 6991ac210d1SIoana Ciornei endpoint2->type[i] = rsp_params->ep2_type[i]; 7001ac210d1SIoana Ciornei 7011ac210d1SIoana Ciornei return 0; 7021ac210d1SIoana Ciornei } 703