^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Copyright 2013-2016 Freescale Semiconductor Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Copyright 2020 NXP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <linux/fsl/mc.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include "fsl-mc-private.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) * cache the DPRC version to reduce the number of commands
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) * towards the mc firmware
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) static u16 dprc_major_ver;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) static u16 dprc_minor_ver;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) * dprc_open() - Open DPRC object for use
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) * @mc_io: Pointer to MC portal's I/O object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) * @container_id: Container ID to open
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) * @token: Returned token of DPRC object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) * Return: '0' on Success; Error code otherwise.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) * @warning Required before any operation on the object.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) int dprc_open(struct fsl_mc_io *mc_io,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) u32 cmd_flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) int container_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) u16 *token)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) struct fsl_mc_command cmd = { 0 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) struct dprc_cmd_open *cmd_params;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) /* prepare command */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) cmd.header = mc_encode_cmd_header(DPRC_CMDID_OPEN, cmd_flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) cmd_params = (struct dprc_cmd_open *)cmd.params;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) cmd_params->container_id = cpu_to_le32(container_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) /* send command to mc*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) err = mc_send_command(mc_io, &cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) /* retrieve response parameters */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) *token = mc_cmd_hdr_read_token(&cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) EXPORT_SYMBOL_GPL(dprc_open);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) * dprc_close() - Close the control session of the object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) * @mc_io: Pointer to MC portal's I/O object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) * @token: Token of DPRC object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) * After this function is called, no further operations are
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) * allowed on the object without opening a new control session.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) * Return: '0' on Success; Error code otherwise.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) int dprc_close(struct fsl_mc_io *mc_io,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) u32 cmd_flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) u16 token)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) struct fsl_mc_command cmd = { 0 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) /* prepare command */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) cmd.header = mc_encode_cmd_header(DPRC_CMDID_CLOSE, cmd_flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) token);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) /* send command to mc*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) return mc_send_command(mc_io, &cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) EXPORT_SYMBOL_GPL(dprc_close);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) * dprc_reset_container - Reset child container.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) * @mc_io: Pointer to MC portal's I/O object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) * @token: Token of DPRC object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) * @child_container_id: ID of the container to reset
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) * @options: 32 bit options:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) * - 0 (no bits set) - all the objects inside the container are
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) * reset. The child containers are entered recursively and the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) * objects reset. All the objects (including the child containers)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) * are closed.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) * - bit 0 set - all the objects inside the container are reset.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) * However the child containers are not entered recursively.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) * This option is supported for API versions >= 6.5
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) * In case a software context crashes or becomes non-responsive, the parent
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) * may wish to reset its resources container before the software context is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) * restarted.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) * This routine informs all objects assigned to the child container that the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) * container is being reset, so they may perform any cleanup operations that are
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) * needed. All objects handles that were owned by the child container shall be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) * closed.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) * Note that such request may be submitted even if the child software context
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) * has not crashed, but the resulting object cleanup operations will not be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) * aware of that.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) * Return: '0' on Success; Error code otherwise.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) int dprc_reset_container(struct fsl_mc_io *mc_io,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) u32 cmd_flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) u16 token,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) int child_container_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) u32 options)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) struct fsl_mc_command cmd = { 0 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) struct dprc_cmd_reset_container *cmd_params;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) u32 cmdid = DPRC_CMDID_RESET_CONT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) * If the DPRC object version was not yet cached, cache it now.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) * Otherwise use the already cached value.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) if (!dprc_major_ver && !dprc_minor_ver) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) err = dprc_get_api_version(mc_io, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) &dprc_major_ver,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) &dprc_minor_ver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) * MC API 6.5 introduced a new field in the command used to pass
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) * some flags.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) * Bit 0 indicates that the child containers are not recursively reset.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) if (dprc_major_ver > 6 || (dprc_major_ver == 6 && dprc_minor_ver >= 5))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) cmdid = DPRC_CMDID_RESET_CONT_V2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) /* prepare command */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) cmd.header = mc_encode_cmd_header(cmdid, cmd_flags, token);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) cmd_params = (struct dprc_cmd_reset_container *)cmd.params;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) cmd_params->child_container_id = cpu_to_le32(child_container_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) cmd_params->options = cpu_to_le32(options);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) /* send command to mc*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) return mc_send_command(mc_io, &cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) EXPORT_SYMBOL_GPL(dprc_reset_container);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) * dprc_set_irq() - Set IRQ information for the DPRC to trigger an interrupt.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) * @mc_io: Pointer to MC portal's I/O object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) * @token: Token of DPRC object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) * @irq_index: Identifies the interrupt index to configure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) * @irq_cfg: IRQ configuration
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) * Return: '0' on Success; Error code otherwise.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) int dprc_set_irq(struct fsl_mc_io *mc_io,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) u32 cmd_flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) u16 token,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) u8 irq_index,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) struct dprc_irq_cfg *irq_cfg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) struct fsl_mc_command cmd = { 0 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) struct dprc_cmd_set_irq *cmd_params;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) /* prepare command */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) cmd.header = mc_encode_cmd_header(DPRC_CMDID_SET_IRQ,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) cmd_flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) token);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) cmd_params = (struct dprc_cmd_set_irq *)cmd.params;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) cmd_params->irq_val = cpu_to_le32(irq_cfg->val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) cmd_params->irq_index = irq_index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) cmd_params->irq_addr = cpu_to_le64(irq_cfg->paddr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) cmd_params->irq_num = cpu_to_le32(irq_cfg->irq_num);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) /* send command to mc*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) return mc_send_command(mc_io, &cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) * dprc_set_irq_enable() - Set overall interrupt state.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) * @mc_io: Pointer to MC portal's I/O object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) * @token: Token of DPRC object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) * @irq_index: The interrupt index to configure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) * @en: Interrupt state - enable = 1, disable = 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) * Allows GPP software to control when interrupts are generated.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) * Each interrupt can have up to 32 causes. The enable/disable control's the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) * overall interrupt state. if the interrupt is disabled no causes will cause
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) * an interrupt.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) * Return: '0' on Success; Error code otherwise.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) int dprc_set_irq_enable(struct fsl_mc_io *mc_io,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) u32 cmd_flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) u16 token,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) u8 irq_index,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) u8 en)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) struct fsl_mc_command cmd = { 0 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) struct dprc_cmd_set_irq_enable *cmd_params;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) /* prepare command */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) cmd.header = mc_encode_cmd_header(DPRC_CMDID_SET_IRQ_ENABLE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) cmd_flags, token);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) cmd_params = (struct dprc_cmd_set_irq_enable *)cmd.params;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) cmd_params->enable = en & DPRC_ENABLE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) cmd_params->irq_index = irq_index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) /* send command to mc*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) return mc_send_command(mc_io, &cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) * dprc_set_irq_mask() - Set interrupt mask.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) * @mc_io: Pointer to MC portal's I/O object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) * @token: Token of DPRC object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) * @irq_index: The interrupt index to configure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) * @mask: event mask to trigger interrupt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) * each bit:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) * 0 = ignore event
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) * 1 = consider event for asserting irq
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) * Every interrupt can have up to 32 causes and the interrupt model supports
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) * masking/unmasking each cause independently
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) * Return: '0' on Success; Error code otherwise.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) int dprc_set_irq_mask(struct fsl_mc_io *mc_io,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) u32 cmd_flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) u16 token,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) u8 irq_index,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) u32 mask)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) struct fsl_mc_command cmd = { 0 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) struct dprc_cmd_set_irq_mask *cmd_params;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) /* prepare command */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) cmd.header = mc_encode_cmd_header(DPRC_CMDID_SET_IRQ_MASK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) cmd_flags, token);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) cmd_params = (struct dprc_cmd_set_irq_mask *)cmd.params;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) cmd_params->mask = cpu_to_le32(mask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) cmd_params->irq_index = irq_index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) /* send command to mc*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) return mc_send_command(mc_io, &cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) * dprc_get_irq_status() - Get the current status of any pending interrupts.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) * @mc_io: Pointer to MC portal's I/O object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) * @token: Token of DPRC object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) * @irq_index: The interrupt index to configure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) * @status: Returned interrupts status - one bit per cause:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) * 0 = no interrupt pending
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) * 1 = interrupt pending
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) * Return: '0' on Success; Error code otherwise.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) int dprc_get_irq_status(struct fsl_mc_io *mc_io,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) u32 cmd_flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) u16 token,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) u8 irq_index,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) u32 *status)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) struct fsl_mc_command cmd = { 0 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) struct dprc_cmd_get_irq_status *cmd_params;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) struct dprc_rsp_get_irq_status *rsp_params;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) /* prepare command */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_IRQ_STATUS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) cmd_flags, token);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) cmd_params = (struct dprc_cmd_get_irq_status *)cmd.params;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) cmd_params->status = cpu_to_le32(*status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) cmd_params->irq_index = irq_index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) /* send command to mc*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) err = mc_send_command(mc_io, &cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) /* retrieve response parameters */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) rsp_params = (struct dprc_rsp_get_irq_status *)cmd.params;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) *status = le32_to_cpu(rsp_params->status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) * dprc_clear_irq_status() - Clear a pending interrupt's status
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) * @mc_io: Pointer to MC portal's I/O object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) * @token: Token of DPRC object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) * @irq_index: The interrupt index to configure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) * @status: bits to clear (W1C) - one bit per cause:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) * 0 = don't change
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) * 1 = clear status bit
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) * Return: '0' on Success; Error code otherwise.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) int dprc_clear_irq_status(struct fsl_mc_io *mc_io,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) u32 cmd_flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) u16 token,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) u8 irq_index,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) u32 status)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) struct fsl_mc_command cmd = { 0 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) struct dprc_cmd_clear_irq_status *cmd_params;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) /* prepare command */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) cmd.header = mc_encode_cmd_header(DPRC_CMDID_CLEAR_IRQ_STATUS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) cmd_flags, token);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) cmd_params = (struct dprc_cmd_clear_irq_status *)cmd.params;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) cmd_params->status = cpu_to_le32(status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) cmd_params->irq_index = irq_index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) /* send command to mc*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) return mc_send_command(mc_io, &cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) * dprc_get_attributes() - Obtains container attributes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) * @mc_io: Pointer to MC portal's I/O object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) * @token: Token of DPRC object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) * @attributes Returned container attributes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) * Return: '0' on Success; Error code otherwise.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) int dprc_get_attributes(struct fsl_mc_io *mc_io,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) u32 cmd_flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) u16 token,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) struct dprc_attributes *attr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) struct fsl_mc_command cmd = { 0 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) struct dprc_rsp_get_attributes *rsp_params;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) /* prepare command */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_ATTR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) cmd_flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) token);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) /* send command to mc*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) err = mc_send_command(mc_io, &cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) /* retrieve response parameters */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) rsp_params = (struct dprc_rsp_get_attributes *)cmd.params;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) attr->container_id = le32_to_cpu(rsp_params->container_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) attr->icid = le32_to_cpu(rsp_params->icid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) attr->options = le32_to_cpu(rsp_params->options);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) attr->portal_id = le32_to_cpu(rsp_params->portal_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) * dprc_get_obj_count() - Obtains the number of objects in the DPRC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) * @mc_io: Pointer to MC portal's I/O object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) * @token: Token of DPRC object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) * @obj_count: Number of objects assigned to the DPRC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) * Return: '0' on Success; Error code otherwise.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) int dprc_get_obj_count(struct fsl_mc_io *mc_io,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) u32 cmd_flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) u16 token,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) int *obj_count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) struct fsl_mc_command cmd = { 0 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) struct dprc_rsp_get_obj_count *rsp_params;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) /* prepare command */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_OBJ_COUNT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) cmd_flags, token);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) /* send command to mc*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) err = mc_send_command(mc_io, &cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) /* retrieve response parameters */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) rsp_params = (struct dprc_rsp_get_obj_count *)cmd.params;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) *obj_count = le32_to_cpu(rsp_params->obj_count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) EXPORT_SYMBOL_GPL(dprc_get_obj_count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) * dprc_get_obj() - Get general information on an object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) * @mc_io: Pointer to MC portal's I/O object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) * @token: Token of DPRC object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) * @obj_index: Index of the object to be queried (< obj_count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) * @obj_desc: Returns the requested object descriptor
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) * The object descriptors are retrieved one by one by incrementing
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) * obj_index up to (not including) the value of obj_count returned
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) * from dprc_get_obj_count(). dprc_get_obj_count() must
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) * be called prior to dprc_get_obj().
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) * Return: '0' on Success; Error code otherwise.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) int dprc_get_obj(struct fsl_mc_io *mc_io,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) u32 cmd_flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) u16 token,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) int obj_index,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) struct fsl_mc_obj_desc *obj_desc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) struct fsl_mc_command cmd = { 0 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) struct dprc_cmd_get_obj *cmd_params;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) struct dprc_rsp_get_obj *rsp_params;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) /* prepare command */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_OBJ,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) cmd_flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) token);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) cmd_params = (struct dprc_cmd_get_obj *)cmd.params;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) cmd_params->obj_index = cpu_to_le32(obj_index);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) /* send command to mc*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) err = mc_send_command(mc_io, &cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) /* retrieve response parameters */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) rsp_params = (struct dprc_rsp_get_obj *)cmd.params;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) obj_desc->id = le32_to_cpu(rsp_params->id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) obj_desc->vendor = le16_to_cpu(rsp_params->vendor);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) obj_desc->irq_count = rsp_params->irq_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) obj_desc->region_count = rsp_params->region_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) obj_desc->state = le32_to_cpu(rsp_params->state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) obj_desc->ver_major = le16_to_cpu(rsp_params->version_major);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) obj_desc->ver_minor = le16_to_cpu(rsp_params->version_minor);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) obj_desc->flags = le16_to_cpu(rsp_params->flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) strncpy(obj_desc->type, rsp_params->type, 16);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) obj_desc->type[15] = '\0';
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) strncpy(obj_desc->label, rsp_params->label, 16);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) obj_desc->label[15] = '\0';
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) EXPORT_SYMBOL_GPL(dprc_get_obj);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) * dprc_set_obj_irq() - Set IRQ information for object to trigger an interrupt.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) * @mc_io: Pointer to MC portal's I/O object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) * @token: Token of DPRC object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) * @obj_type: Type of the object to set its IRQ
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) * @obj_id: ID of the object to set its IRQ
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) * @irq_index: The interrupt index to configure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) * @irq_cfg: IRQ configuration
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) * Return: '0' on Success; Error code otherwise.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) int dprc_set_obj_irq(struct fsl_mc_io *mc_io,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) u32 cmd_flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) u16 token,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) char *obj_type,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) int obj_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) u8 irq_index,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) struct dprc_irq_cfg *irq_cfg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) struct fsl_mc_command cmd = { 0 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) struct dprc_cmd_set_obj_irq *cmd_params;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) /* prepare command */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) cmd.header = mc_encode_cmd_header(DPRC_CMDID_SET_OBJ_IRQ,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) cmd_flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) token);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) cmd_params = (struct dprc_cmd_set_obj_irq *)cmd.params;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) cmd_params->irq_val = cpu_to_le32(irq_cfg->val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) cmd_params->irq_index = irq_index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) cmd_params->irq_addr = cpu_to_le64(irq_cfg->paddr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) cmd_params->irq_num = cpu_to_le32(irq_cfg->irq_num);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) cmd_params->obj_id = cpu_to_le32(obj_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) strncpy(cmd_params->obj_type, obj_type, 16);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) cmd_params->obj_type[15] = '\0';
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) /* send command to mc*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) return mc_send_command(mc_io, &cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) EXPORT_SYMBOL_GPL(dprc_set_obj_irq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) * dprc_get_obj_region() - Get region information for a specified object.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) * @mc_io: Pointer to MC portal's I/O object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) * @token: Token of DPRC object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) * @obj_type; Object type as returned in dprc_get_obj()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) * @obj_id: Unique object instance as returned in dprc_get_obj()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) * @region_index: The specific region to query
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) * @region_desc: Returns the requested region descriptor
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) * Return: '0' on Success; Error code otherwise.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) int dprc_get_obj_region(struct fsl_mc_io *mc_io,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) u32 cmd_flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) u16 token,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) char *obj_type,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) int obj_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) u8 region_index,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) struct dprc_region_desc *region_desc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) struct fsl_mc_command cmd = { 0 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) struct dprc_cmd_get_obj_region *cmd_params;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) struct dprc_rsp_get_obj_region *rsp_params;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) * If the DPRC object version was not yet cached, cache it now.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) * Otherwise use the already cached value.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) if (!dprc_major_ver && !dprc_minor_ver) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) err = dprc_get_api_version(mc_io, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) &dprc_major_ver,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) &dprc_minor_ver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) if (dprc_major_ver > 6 || (dprc_major_ver == 6 && dprc_minor_ver >= 6)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) * MC API version 6.6 changed the size of the MC portals and software
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) * portals to 64K (as implemented by hardware). If older API is in use the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) * size reported is less (64 bytes for mc portals and 4K for software
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) * portals).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_OBJ_REG_V3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) cmd_flags, token);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) } else if (dprc_major_ver == 6 && dprc_minor_ver >= 3) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) * MC API version 6.3 introduced a new field to the region
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) * descriptor: base_address. If the older API is in use then the base
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) * address is set to zero to indicate it needs to be obtained elsewhere
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) * (typically the device tree).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_OBJ_REG_V2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) cmd_flags, token);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_OBJ_REG,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) cmd_flags, token);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) cmd_params = (struct dprc_cmd_get_obj_region *)cmd.params;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) cmd_params->obj_id = cpu_to_le32(obj_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) cmd_params->region_index = region_index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) strncpy(cmd_params->obj_type, obj_type, 16);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) cmd_params->obj_type[15] = '\0';
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) /* send command to mc*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) err = mc_send_command(mc_io, &cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) /* retrieve response parameters */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) rsp_params = (struct dprc_rsp_get_obj_region *)cmd.params;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) region_desc->base_offset = le64_to_cpu(rsp_params->base_offset);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) region_desc->size = le32_to_cpu(rsp_params->size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) if (dprc_major_ver > 6 || (dprc_major_ver == 6 && dprc_minor_ver >= 3))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) region_desc->base_address = le64_to_cpu(rsp_params->base_addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) region_desc->base_address = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) EXPORT_SYMBOL_GPL(dprc_get_obj_region);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) * dprc_get_api_version - Get Data Path Resource Container API version
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) * @mc_io: Pointer to Mc portal's I/O object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) * @major_ver: Major version of Data Path Resource Container API
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) * @minor_ver: Minor version of Data Path Resource Container API
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) * Return: '0' on Success; Error code otherwise.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) int dprc_get_api_version(struct fsl_mc_io *mc_io,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) u32 cmd_flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) u16 *major_ver,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) u16 *minor_ver)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) struct fsl_mc_command cmd = { 0 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) /* prepare command */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_API_VERSION,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) cmd_flags, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) /* send command to mc */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) err = mc_send_command(mc_io, &cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) /* retrieve response parameters */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) mc_cmd_read_api_version(&cmd, major_ver, minor_ver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) * dprc_get_container_id - Get container ID associated with a given portal.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) * @mc_io: Pointer to Mc portal's I/O object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) * @container_id: Requested container id
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) * Return: '0' on Success; Error code otherwise.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) int dprc_get_container_id(struct fsl_mc_io *mc_io,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) u32 cmd_flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) int *container_id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) struct fsl_mc_command cmd = { 0 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) /* prepare command */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_CONT_ID,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) cmd_flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) /* send command to mc*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) err = mc_send_command(mc_io, &cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) /* retrieve response parameters */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) *container_id = (int)mc_cmd_read_object_id(&cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) * dprc_get_connection() - Get connected endpoint and link status if connection
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) * exists.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) * @mc_io: Pointer to MC portal's I/O object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) * @token: Token of DPRC object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) * @endpoint1: Endpoint 1 configuration parameters
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) * @endpoint2: Returned endpoint 2 configuration parameters
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) * @state: Returned link state:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) * 1 - link is up;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) * 0 - link is down;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) * -1 - no connection (endpoint2 information is irrelevant)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664) * Return: '0' on Success; -ENOTCONN if connection does not exist.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) int dprc_get_connection(struct fsl_mc_io *mc_io,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) u32 cmd_flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) u16 token,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) const struct dprc_endpoint *endpoint1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) struct dprc_endpoint *endpoint2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) int *state)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) struct dprc_cmd_get_connection *cmd_params;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) struct dprc_rsp_get_connection *rsp_params;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) struct fsl_mc_command cmd = { 0 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) int err, i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) /* prepare command */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_CONNECTION,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) cmd_flags,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) token);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) cmd_params = (struct dprc_cmd_get_connection *)cmd.params;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) cmd_params->ep1_id = cpu_to_le32(endpoint1->id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) cmd_params->ep1_interface_id = cpu_to_le16(endpoint1->if_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) for (i = 0; i < 16; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) cmd_params->ep1_type[i] = endpoint1->type[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) /* send command to mc */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) err = mc_send_command(mc_io, &cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) return -ENOTCONN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) /* retrieve response parameters */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) rsp_params = (struct dprc_rsp_get_connection *)cmd.params;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) endpoint2->id = le32_to_cpu(rsp_params->ep2_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) endpoint2->if_id = le16_to_cpu(rsp_params->ep2_interface_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) *state = le32_to_cpu(rsp_params->state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698) for (i = 0; i < 16; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) endpoint2->type[i] = rsp_params->ep2_type[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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