diff options
| author | Jie Yang <yang.jie@intel.com> | 2015-04-02 03:37:04 -0400 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2015-04-06 12:49:45 -0400 |
| commit | b97169da06992ef04081e66ed22bbdb23dbf6610 (patch) | |
| tree | 81e719f60576c2c32edb1f7e75760062f96ceb46 /sound/soc/intel/atom/sst/sst_pci.c | |
| parent | 66a6fd9846f0aecdbab9324b792b319fd8e95e77 (diff) | |
ASoC: Intel: create atom folder and move atom platform files in
Restructure the sound/soc/intel/ directory: create atom folder, and move
sst atom platform files here.
Signed-off-by: Jie Yang <yang.jie@intel.com>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/intel/atom/sst/sst_pci.c')
| -rw-r--r-- | sound/soc/intel/atom/sst/sst_pci.c | 209 |
1 files changed, 209 insertions, 0 deletions
diff --git a/sound/soc/intel/atom/sst/sst_pci.c b/sound/soc/intel/atom/sst/sst_pci.c new file mode 100644 index 000000000000..3a0b3bf0af97 --- /dev/null +++ b/sound/soc/intel/atom/sst/sst_pci.c | |||
| @@ -0,0 +1,209 @@ | |||
| 1 | /* | ||
| 2 | * sst_pci.c - SST (LPE) driver init file for pci enumeration. | ||
| 3 | * | ||
| 4 | * Copyright (C) 2008-14 Intel Corp | ||
| 5 | * Authors: Vinod Koul <vinod.koul@intel.com> | ||
| 6 | * Harsha Priya <priya.harsha@intel.com> | ||
| 7 | * Dharageswari R <dharageswari.r@intel.com> | ||
| 8 | * KP Jeeja <jeeja.kp@intel.com> | ||
| 9 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | ||
| 10 | * | ||
| 11 | * This program is free software; you can redistribute it and/or modify | ||
| 12 | * it under the terms of the GNU General Public License as published by | ||
| 13 | * the Free Software Foundation; version 2 of the License. | ||
| 14 | * | ||
| 15 | * This program is distributed in the hope that it will be useful, but | ||
| 16 | * WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| 18 | * General Public License for more details. | ||
| 19 | * | ||
| 20 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | ||
| 21 | */ | ||
| 22 | #include <linux/module.h> | ||
| 23 | #include <linux/pci.h> | ||
| 24 | #include <linux/fs.h> | ||
| 25 | #include <linux/firmware.h> | ||
| 26 | #include <linux/pm_runtime.h> | ||
| 27 | #include <sound/core.h> | ||
| 28 | #include <sound/soc.h> | ||
| 29 | #include <asm/platform_sst_audio.h> | ||
| 30 | #include "../sst-mfld-platform.h" | ||
| 31 | #include "sst.h" | ||
| 32 | |||
| 33 | static int sst_platform_get_resources(struct intel_sst_drv *ctx) | ||
| 34 | { | ||
| 35 | int ddr_base, ret = 0; | ||
| 36 | struct pci_dev *pci = ctx->pci; | ||
| 37 | |||
| 38 | ret = pci_request_regions(pci, SST_DRV_NAME); | ||
| 39 | if (ret) | ||
| 40 | return ret; | ||
| 41 | |||
| 42 | /* map registers */ | ||
| 43 | /* DDR base */ | ||
| 44 | if (ctx->dev_id == SST_MRFLD_PCI_ID) { | ||
| 45 | ctx->ddr_base = pci_resource_start(pci, 0); | ||
| 46 | /* check that the relocated IMR base matches with FW Binary */ | ||
| 47 | ddr_base = relocate_imr_addr_mrfld(ctx->ddr_base); | ||
| 48 | if (!ctx->pdata->lib_info) { | ||
| 49 | dev_err(ctx->dev, "lib_info pointer NULL\n"); | ||
| 50 | ret = -EINVAL; | ||
| 51 | goto do_release_regions; | ||
| 52 | } | ||
| 53 | if (ddr_base != ctx->pdata->lib_info->mod_base) { | ||
| 54 | dev_err(ctx->dev, | ||
| 55 | "FW LSP DDR BASE does not match with IFWI\n"); | ||
| 56 | ret = -EINVAL; | ||
| 57 | goto do_release_regions; | ||
| 58 | } | ||
| 59 | ctx->ddr_end = pci_resource_end(pci, 0); | ||
| 60 | |||
| 61 | ctx->ddr = pcim_iomap(pci, 0, | ||
| 62 | pci_resource_len(pci, 0)); | ||
| 63 | if (!ctx->ddr) { | ||
| 64 | ret = -EINVAL; | ||
| 65 | goto do_release_regions; | ||
| 66 | } | ||
| 67 | dev_dbg(ctx->dev, "sst: DDR Ptr %p\n", ctx->ddr); | ||
| 68 | } else { | ||
| 69 | ctx->ddr = NULL; | ||
| 70 | } | ||
| 71 | /* SHIM */ | ||
| 72 | ctx->shim_phy_add = pci_resource_start(pci, 1); | ||
| 73 | ctx->shim = pcim_iomap(pci, 1, pci_resource_len(pci, 1)); | ||
| 74 | if (!ctx->shim) { | ||
| 75 | ret = -EINVAL; | ||
| 76 | goto do_release_regions; | ||
| 77 | } | ||
| 78 | dev_dbg(ctx->dev, "SST Shim Ptr %p\n", ctx->shim); | ||
| 79 | |||
| 80 | /* Shared SRAM */ | ||
| 81 | ctx->mailbox_add = pci_resource_start(pci, 2); | ||
| 82 | ctx->mailbox = pcim_iomap(pci, 2, pci_resource_len(pci, 2)); | ||
| 83 | if (!ctx->mailbox) { | ||
| 84 | ret = -EINVAL; | ||
| 85 | goto do_release_regions; | ||
| 86 | } | ||
| 87 | dev_dbg(ctx->dev, "SRAM Ptr %p\n", ctx->mailbox); | ||
| 88 | |||
| 89 | /* IRAM */ | ||
| 90 | ctx->iram_end = pci_resource_end(pci, 3); | ||
| 91 | ctx->iram_base = pci_resource_start(pci, 3); | ||
| 92 | ctx->iram = pcim_iomap(pci, 3, pci_resource_len(pci, 3)); | ||
| 93 | if (!ctx->iram) { | ||
| 94 | ret = -EINVAL; | ||
| 95 | goto do_release_regions; | ||
| 96 | } | ||
| 97 | dev_dbg(ctx->dev, "IRAM Ptr %p\n", ctx->iram); | ||
| 98 | |||
| 99 | /* DRAM */ | ||
| 100 | ctx->dram_end = pci_resource_end(pci, 4); | ||
| 101 | ctx->dram_base = pci_resource_start(pci, 4); | ||
| 102 | ctx->dram = pcim_iomap(pci, 4, pci_resource_len(pci, 4)); | ||
| 103 | if (!ctx->dram) { | ||
| 104 | ret = -EINVAL; | ||
| 105 | goto do_release_regions; | ||
| 106 | } | ||
| 107 | dev_dbg(ctx->dev, "DRAM Ptr %p\n", ctx->dram); | ||
| 108 | do_release_regions: | ||
| 109 | pci_release_regions(pci); | ||
| 110 | return 0; | ||
| 111 | } | ||
| 112 | |||
| 113 | /* | ||
| 114 | * intel_sst_probe - PCI probe function | ||
| 115 | * | ||
| 116 | * @pci: PCI device structure | ||
| 117 | * @pci_id: PCI device ID structure | ||
| 118 | * | ||
| 119 | */ | ||
| 120 | static int intel_sst_probe(struct pci_dev *pci, | ||
| 121 | const struct pci_device_id *pci_id) | ||
| 122 | { | ||
| 123 | int ret = 0; | ||
| 124 | struct intel_sst_drv *sst_drv_ctx; | ||
| 125 | struct sst_platform_info *sst_pdata = pci->dev.platform_data; | ||
| 126 | |||
| 127 | dev_dbg(&pci->dev, "Probe for DID %x\n", pci->device); | ||
| 128 | ret = sst_alloc_drv_context(&sst_drv_ctx, &pci->dev, pci->device); | ||
| 129 | if (ret < 0) | ||
| 130 | return ret; | ||
| 131 | |||
| 132 | sst_drv_ctx->pdata = sst_pdata; | ||
| 133 | sst_drv_ctx->irq_num = pci->irq; | ||
| 134 | snprintf(sst_drv_ctx->firmware_name, sizeof(sst_drv_ctx->firmware_name), | ||
| 135 | "%s%04x%s", "fw_sst_", | ||
| 136 | sst_drv_ctx->dev_id, ".bin"); | ||
| 137 | |||
| 138 | ret = sst_context_init(sst_drv_ctx); | ||
| 139 | if (ret < 0) | ||
| 140 | return ret; | ||
| 141 | |||
| 142 | /* Init the device */ | ||
| 143 | ret = pcim_enable_device(pci); | ||
| 144 | if (ret) { | ||
| 145 | dev_err(sst_drv_ctx->dev, | ||
| 146 | "device can't be enabled. Returned err: %d\n", ret); | ||
| 147 | goto do_free_drv_ctx; | ||
| 148 | } | ||
| 149 | sst_drv_ctx->pci = pci_dev_get(pci); | ||
| 150 | ret = sst_platform_get_resources(sst_drv_ctx); | ||
| 151 | if (ret < 0) | ||
| 152 | goto do_free_drv_ctx; | ||
| 153 | |||
| 154 | pci_set_drvdata(pci, sst_drv_ctx); | ||
| 155 | sst_configure_runtime_pm(sst_drv_ctx); | ||
| 156 | |||
| 157 | return ret; | ||
| 158 | |||
| 159 | do_free_drv_ctx: | ||
| 160 | sst_context_cleanup(sst_drv_ctx); | ||
| 161 | dev_err(sst_drv_ctx->dev, "Probe failed with %d\n", ret); | ||
| 162 | return ret; | ||
| 163 | } | ||
| 164 | |||
| 165 | /** | ||
| 166 | * intel_sst_remove - PCI remove function | ||
| 167 | * | ||
| 168 | * @pci: PCI device structure | ||
| 169 | * | ||
| 170 | * This function is called by OS when a device is unloaded | ||
| 171 | * This frees the interrupt etc | ||
| 172 | */ | ||
| 173 | static void intel_sst_remove(struct pci_dev *pci) | ||
| 174 | { | ||
| 175 | struct intel_sst_drv *sst_drv_ctx = pci_get_drvdata(pci); | ||
| 176 | |||
| 177 | sst_context_cleanup(sst_drv_ctx); | ||
| 178 | pci_dev_put(sst_drv_ctx->pci); | ||
| 179 | pci_release_regions(pci); | ||
| 180 | pci_set_drvdata(pci, NULL); | ||
| 181 | } | ||
| 182 | |||
| 183 | /* PCI Routines */ | ||
| 184 | static struct pci_device_id intel_sst_ids[] = { | ||
| 185 | { PCI_VDEVICE(INTEL, SST_MRFLD_PCI_ID), 0}, | ||
| 186 | { 0, } | ||
| 187 | }; | ||
| 188 | |||
| 189 | static struct pci_driver sst_driver = { | ||
| 190 | .name = SST_DRV_NAME, | ||
| 191 | .id_table = intel_sst_ids, | ||
| 192 | .probe = intel_sst_probe, | ||
| 193 | .remove = intel_sst_remove, | ||
| 194 | #ifdef CONFIG_PM | ||
| 195 | .driver = { | ||
| 196 | .pm = &intel_sst_pm, | ||
| 197 | }, | ||
| 198 | #endif | ||
| 199 | }; | ||
| 200 | |||
| 201 | module_pci_driver(sst_driver); | ||
| 202 | |||
| 203 | MODULE_DESCRIPTION("Intel (R) SST(R) Audio Engine PCI Driver"); | ||
| 204 | MODULE_AUTHOR("Vinod Koul <vinod.koul@intel.com>"); | ||
| 205 | MODULE_AUTHOR("Harsha Priya <priya.harsha@intel.com>"); | ||
| 206 | MODULE_AUTHOR("Dharageswari R <dharageswari.r@intel.com>"); | ||
| 207 | MODULE_AUTHOR("KP Jeeja <jeeja.kp@intel.com>"); | ||
| 208 | MODULE_LICENSE("GPL v2"); | ||
| 209 | MODULE_ALIAS("sst"); | ||
