1 /*
2 * Copyright (C) 2021 HiSilicon (Shanghai) Technologies CO., LIMITED.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version 2
7 * of the License, or (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
17 */
18 #include "tde_init.h"
19 #include <linux/module.h>
20 #include <linux/kernel.h>
21 #include <linux/printk.h>
22 #include <linux/version.h>
23 #include <linux/of_platform.h>
24 #include "hi_type.h"
25 #include "hi_common.h"
26 #include "hi_osal.h"
27
28 hi_u32 g_u32TdeTmpBuf = 1658880; /* 1658880 buffer size */
29 bool g_bResizeFilter = true;
30 hi_u32 g_u32TdeBuf = 0x20000; /* 0x20000 buffer size */
31
32 module_param(g_u32TdeTmpBuf, uint, S_IRUGO);
33 module_param(g_bResizeFilter, bool, S_IRUGO);
34 module_param(g_u32TdeBuf, uint, S_IRUGO);
35
hi35xx_tde_probe(struct platform_device * pdev)36 static int hi35xx_tde_probe(struct platform_device *pdev)
37 {
38 struct resource *mem = HI_NULL;
39 int tde_irq;
40 hi_u32 *base_vir_addr = HI_NULL;
41 mem = osal_platform_get_resource_byname(pdev, IORESOURCE_MEM, "tde");
42 base_vir_addr = devm_ioremap_resource(&pdev->dev, mem);
43 tde_hal_set_base_vir_addr(base_vir_addr);
44 if (IS_ERR(base_vir_addr)) {
45 return PTR_ERR(base_vir_addr);
46 }
47
48 tde_irq = osal_platform_get_irq_byname(pdev, "tde_osr_isr");
49 if (tde_irq <= 0) {
50 dev_err(&pdev->dev, "cannot find tde IRQ\n");
51 return -1;
52 }
53 set_tde_irq((hi_u32)tde_irq);
54
55 if (g_u32TdeBuf > 0) {
56 tde_init_set_buf(g_u32TdeBuf);
57 }
58 tde_set_resize_filter(g_bResizeFilter);
59 if (g_u32TdeTmpBuf > 0) {
60 tde_set_tde_tmp_buffer(g_u32TdeTmpBuf);
61 }
62
63 if (tde_drv_mod_init() != HI_SUCCESS) {
64 osal_printk("load tde.ko for %s...FAILED!\n", CHIP_NAME);
65 return -1;
66 }
67 osal_printk("load tde.ko for %s...OK!\n", CHIP_NAME);
68 return 0;
69 }
70
hi35xx_tde_remove(struct platform_device * pdev)71 static int hi35xx_tde_remove(struct platform_device *pdev)
72 {
73 hi_unused(pdev);
74 tde_drv_mod_exit();
75 osal_printk("unload tde.ko for %s...OK!\n", CHIP_NAME);
76 return 0;
77 }
78
79 static const struct of_device_id g_hi35xx_tde_match[] = {
80 { .compatible = "hisilicon,hisi-tde" },
81 {},
82 };
83 MODULE_DEVICE_TABLE(of, g_hi35xx_tde_match);
84
85 static struct platform_driver g_hi35xx_tde_driver = {
86 .probe = hi35xx_tde_probe,
87 .remove = hi35xx_tde_remove,
88 .driver = {
89 .name = "hi35xx_tde",
90 .of_match_table = g_hi35xx_tde_match,
91 },
92 };
93
94 osal_module_platform_driver(g_hi35xx_tde_driver);
95
96 MODULE_LICENSE("GPL");
97
98