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 */
dprc_open(struct fsl_mc_io * mc_io,u32 cmd_flags,int container_id,u16 * token)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 */
dprc_close(struct fsl_mc_io * mc_io,u32 cmd_flags,u16 token)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 */
dprc_reset_container(struct fsl_mc_io * mc_io,u32 cmd_flags,u16 token,int child_container_id,u32 options)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 */
dprc_set_irq(struct fsl_mc_io * mc_io,u32 cmd_flags,u16 token,u8 irq_index,struct dprc_irq_cfg * irq_cfg)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 */
dprc_set_irq_enable(struct fsl_mc_io * mc_io,u32 cmd_flags,u16 token,u8 irq_index,u8 en)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 */
dprc_set_irq_mask(struct fsl_mc_io * mc_io,u32 cmd_flags,u16 token,u8 irq_index,u32 mask)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 */
dprc_get_irq_status(struct fsl_mc_io * mc_io,u32 cmd_flags,u16 token,u8 irq_index,u32 * status)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 */
dprc_clear_irq_status(struct fsl_mc_io * mc_io,u32 cmd_flags,u16 token,u8 irq_index,u32 status)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
337*4c366247SLee Jones * @attr: Returned container attributes
3386bd067c4SBogdan Purcareata *
3396bd067c4SBogdan Purcareata * Return: '0' on Success; Error code otherwise.
3406bd067c4SBogdan Purcareata */
dprc_get_attributes(struct fsl_mc_io * mc_io,u32 cmd_flags,u16 token,struct dprc_attributes * attr)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 */
dprc_get_obj_count(struct fsl_mc_io * mc_io,u32 cmd_flags,u16 token,int * obj_count)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 */
dprc_get_obj(struct fsl_mc_io * mc_io,u32 cmd_flags,u16 token,int obj_index,struct fsl_mc_obj_desc * obj_desc)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 */
dprc_set_obj_irq(struct fsl_mc_io * mc_io,u32 cmd_flags,u16 token,char * obj_type,int obj_id,u8 irq_index,struct dprc_irq_cfg * irq_cfg)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
507*4c366247SLee Jones * @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 */
dprc_get_obj_region(struct fsl_mc_io * mc_io,u32 cmd_flags,u16 token,char * obj_type,int obj_id,u8 region_index,struct dprc_region_desc * region_desc)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);
579ca43fec9SLaurentiu Tudor region_desc->type = rsp_params->type;
580ca43fec9SLaurentiu Tudor region_desc->flags = le32_to_cpu(rsp_params->flags);
581993577b2SDiana Craciun if (dprc_major_ver > 6 || (dprc_major_ver == 6 && dprc_minor_ver >= 3))
582dde2137dSRoy Pledge region_desc->base_address = le64_to_cpu(rsp_params->base_addr);
583dde2137dSRoy Pledge else
584dde2137dSRoy Pledge region_desc->base_address = 0;
5856bd067c4SBogdan Purcareata
5866bd067c4SBogdan Purcareata return 0;
5876bd067c4SBogdan Purcareata }
5886bd067c4SBogdan Purcareata EXPORT_SYMBOL_GPL(dprc_get_obj_region);
5896bd067c4SBogdan Purcareata
5906bd067c4SBogdan Purcareata /**
5916bd067c4SBogdan Purcareata * dprc_get_api_version - Get Data Path Resource Container API version
5926bd067c4SBogdan Purcareata * @mc_io: Pointer to Mc portal's I/O object
5936bd067c4SBogdan Purcareata * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
5946bd067c4SBogdan Purcareata * @major_ver: Major version of Data Path Resource Container API
5956bd067c4SBogdan Purcareata * @minor_ver: Minor version of Data Path Resource Container API
5966bd067c4SBogdan Purcareata *
5976bd067c4SBogdan Purcareata * Return: '0' on Success; Error code otherwise.
5986bd067c4SBogdan Purcareata */
dprc_get_api_version(struct fsl_mc_io * mc_io,u32 cmd_flags,u16 * major_ver,u16 * minor_ver)5996bd067c4SBogdan Purcareata int dprc_get_api_version(struct fsl_mc_io *mc_io,
6006bd067c4SBogdan Purcareata u32 cmd_flags,
6016bd067c4SBogdan Purcareata u16 *major_ver,
6026bd067c4SBogdan Purcareata u16 *minor_ver)
6036bd067c4SBogdan Purcareata {
6045b04cedeSIoana Ciornei struct fsl_mc_command cmd = { 0 };
6056bd067c4SBogdan Purcareata int err;
6066bd067c4SBogdan Purcareata
6076bd067c4SBogdan Purcareata /* prepare command */
6086bd067c4SBogdan Purcareata cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_API_VERSION,
6096bd067c4SBogdan Purcareata cmd_flags, 0);
6106bd067c4SBogdan Purcareata
6116bd067c4SBogdan Purcareata /* send command to mc */
6126bd067c4SBogdan Purcareata err = mc_send_command(mc_io, &cmd);
6136bd067c4SBogdan Purcareata if (err)
6146bd067c4SBogdan Purcareata return err;
6156bd067c4SBogdan Purcareata
6166bd067c4SBogdan Purcareata /* retrieve response parameters */
6176bd067c4SBogdan Purcareata mc_cmd_read_api_version(&cmd, major_ver, minor_ver);
6186bd067c4SBogdan Purcareata
6196bd067c4SBogdan Purcareata return 0;
6206bd067c4SBogdan Purcareata }
6216bd067c4SBogdan Purcareata
6226bd067c4SBogdan Purcareata /**
6236bd067c4SBogdan Purcareata * dprc_get_container_id - Get container ID associated with a given portal.
6246bd067c4SBogdan Purcareata * @mc_io: Pointer to Mc portal's I/O object
6256bd067c4SBogdan Purcareata * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
6266bd067c4SBogdan Purcareata * @container_id: Requested container id
6276bd067c4SBogdan Purcareata *
6286bd067c4SBogdan Purcareata * Return: '0' on Success; Error code otherwise.
6296bd067c4SBogdan Purcareata */
dprc_get_container_id(struct fsl_mc_io * mc_io,u32 cmd_flags,int * container_id)6306bd067c4SBogdan Purcareata int dprc_get_container_id(struct fsl_mc_io *mc_io,
6316bd067c4SBogdan Purcareata u32 cmd_flags,
6326bd067c4SBogdan Purcareata int *container_id)
6336bd067c4SBogdan Purcareata {
6345b04cedeSIoana Ciornei struct fsl_mc_command cmd = { 0 };
6356bd067c4SBogdan Purcareata int err;
6366bd067c4SBogdan Purcareata
6376bd067c4SBogdan Purcareata /* prepare command */
6386bd067c4SBogdan Purcareata cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_CONT_ID,
6396bd067c4SBogdan Purcareata cmd_flags,
6406bd067c4SBogdan Purcareata 0);
6416bd067c4SBogdan Purcareata
6426bd067c4SBogdan Purcareata /* send command to mc*/
6436bd067c4SBogdan Purcareata err = mc_send_command(mc_io, &cmd);
6446bd067c4SBogdan Purcareata if (err)
6456bd067c4SBogdan Purcareata return err;
6466bd067c4SBogdan Purcareata
6476bd067c4SBogdan Purcareata /* retrieve response parameters */
6486bd067c4SBogdan Purcareata *container_id = (int)mc_cmd_read_object_id(&cmd);
6496bd067c4SBogdan Purcareata
6506bd067c4SBogdan Purcareata return 0;
6516bd067c4SBogdan Purcareata }
6521ac210d1SIoana Ciornei
6531ac210d1SIoana Ciornei /**
6541ac210d1SIoana Ciornei * dprc_get_connection() - Get connected endpoint and link status if connection
6551ac210d1SIoana Ciornei * exists.
6561ac210d1SIoana Ciornei * @mc_io: Pointer to MC portal's I/O object
6571ac210d1SIoana Ciornei * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
6581ac210d1SIoana Ciornei * @token: Token of DPRC object
6591ac210d1SIoana Ciornei * @endpoint1: Endpoint 1 configuration parameters
6601ac210d1SIoana Ciornei * @endpoint2: Returned endpoint 2 configuration parameters
6611ac210d1SIoana Ciornei * @state: Returned link state:
6621ac210d1SIoana Ciornei * 1 - link is up;
6631ac210d1SIoana Ciornei * 0 - link is down;
6641ac210d1SIoana Ciornei * -1 - no connection (endpoint2 information is irrelevant)
6651ac210d1SIoana Ciornei *
6661ac210d1SIoana Ciornei * Return: '0' on Success; -ENOTCONN if connection does not exist.
6671ac210d1SIoana Ciornei */
dprc_get_connection(struct fsl_mc_io * mc_io,u32 cmd_flags,u16 token,const struct dprc_endpoint * endpoint1,struct dprc_endpoint * endpoint2,int * state)6681ac210d1SIoana Ciornei int dprc_get_connection(struct fsl_mc_io *mc_io,
6691ac210d1SIoana Ciornei u32 cmd_flags,
6701ac210d1SIoana Ciornei u16 token,
6711ac210d1SIoana Ciornei const struct dprc_endpoint *endpoint1,
6721ac210d1SIoana Ciornei struct dprc_endpoint *endpoint2,
6731ac210d1SIoana Ciornei int *state)
6741ac210d1SIoana Ciornei {
6751ac210d1SIoana Ciornei struct dprc_cmd_get_connection *cmd_params;
6761ac210d1SIoana Ciornei struct dprc_rsp_get_connection *rsp_params;
6771ac210d1SIoana Ciornei struct fsl_mc_command cmd = { 0 };
6781ac210d1SIoana Ciornei int err, i;
6791ac210d1SIoana Ciornei
6801ac210d1SIoana Ciornei /* prepare command */
6811ac210d1SIoana Ciornei cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_CONNECTION,
6821ac210d1SIoana Ciornei cmd_flags,
6831ac210d1SIoana Ciornei token);
6841ac210d1SIoana Ciornei cmd_params = (struct dprc_cmd_get_connection *)cmd.params;
6851ac210d1SIoana Ciornei cmd_params->ep1_id = cpu_to_le32(endpoint1->id);
6861ac210d1SIoana Ciornei cmd_params->ep1_interface_id = cpu_to_le16(endpoint1->if_id);
6871ac210d1SIoana Ciornei for (i = 0; i < 16; i++)
6881ac210d1SIoana Ciornei cmd_params->ep1_type[i] = endpoint1->type[i];
6891ac210d1SIoana Ciornei
6901ac210d1SIoana Ciornei /* send command to mc */
6911ac210d1SIoana Ciornei err = mc_send_command(mc_io, &cmd);
6921ac210d1SIoana Ciornei if (err)
6931ac210d1SIoana Ciornei return -ENOTCONN;
6941ac210d1SIoana Ciornei
6951ac210d1SIoana Ciornei /* retrieve response parameters */
6961ac210d1SIoana Ciornei rsp_params = (struct dprc_rsp_get_connection *)cmd.params;
6971ac210d1SIoana Ciornei endpoint2->id = le32_to_cpu(rsp_params->ep2_id);
6981ac210d1SIoana Ciornei endpoint2->if_id = le16_to_cpu(rsp_params->ep2_interface_id);
6991ac210d1SIoana Ciornei *state = le32_to_cpu(rsp_params->state);
7001ac210d1SIoana Ciornei for (i = 0; i < 16; i++)
7011ac210d1SIoana Ciornei endpoint2->type[i] = rsp_params->ep2_type[i];
7021ac210d1SIoana Ciornei
7031ac210d1SIoana Ciornei return 0;
7041ac210d1SIoana Ciornei }
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