From 37f49e37ab4cb5d0bc4c60eb5c6d4dd57db767bb Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 10 May 2024 07:44:59 +0000
Subject: [PATCH] gmac get mac form eeprom
---
kernel/drivers/staging/sm750fb/sm750.c | 264 +++++++++++++++++++---------------------------------
1 files changed, 98 insertions(+), 166 deletions(-)
diff --git a/kernel/drivers/staging/sm750fb/sm750.c b/kernel/drivers/staging/sm750fb/sm750.c
index 3972e21..029f0d0 100644
--- a/kernel/drivers/staging/sm750fb/sm750.c
+++ b/kernel/drivers/staging/sm750fb/sm750.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/errno.h>
@@ -296,6 +297,62 @@
return hw_sm750_pan_display(crtc, var, info);
}
+static inline void lynxfb_set_visual_mode(struct fb_info *info)
+{
+ switch (info->var.bits_per_pixel) {
+ case 8:
+ info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
+ break;
+ case 16:
+ case 24:
+ case 32:
+ info->fix.visual = FB_VISUAL_TRUECOLOR;
+ break;
+ default:
+ break;
+ }
+}
+
+static inline int lynxfb_set_color_offsets(struct fb_info *info)
+{
+ lynxfb_set_visual_mode(info);
+
+ switch (info->var.bits_per_pixel) {
+ case 8:
+ info->var.red.offset = 0;
+ info->var.red.length = 8;
+ info->var.green.offset = 0;
+ info->var.green.length = 8;
+ info->var.blue.offset = 0;
+ info->var.blue.length = 8;
+ info->var.transp.length = 0;
+ info->var.transp.offset = 0;
+ break;
+ case 16:
+ info->var.red.offset = 11;
+ info->var.red.length = 5;
+ info->var.green.offset = 5;
+ info->var.green.length = 6;
+ info->var.blue.offset = 0;
+ info->var.blue.length = 5;
+ info->var.transp.length = 0;
+ info->var.transp.offset = 0;
+ break;
+ case 24:
+ case 32:
+ info->var.red.offset = 16;
+ info->var.red.length = 8;
+ info->var.green.offset = 8;
+ info->var.green.length = 8;
+ info->var.blue.offset = 0;
+ info->var.blue.length = 8;
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
static int lynxfb_ops_set_par(struct fb_info *info)
{
struct lynxfb_par *par;
@@ -327,48 +384,13 @@
* and these data should be set before setcolreg routine
*/
- switch (var->bits_per_pixel) {
- case 8:
- fix->visual = FB_VISUAL_PSEUDOCOLOR;
- var->red.offset = 0;
- var->red.length = 8;
- var->green.offset = 0;
- var->green.length = 8;
- var->blue.offset = 0;
- var->blue.length = 8;
- var->transp.length = 0;
- var->transp.offset = 0;
- break;
- case 16:
- var->red.offset = 11;
- var->red.length = 5;
- var->green.offset = 5;
- var->green.length = 6;
- var->blue.offset = 0;
- var->blue.length = 5;
- var->transp.length = 0;
- var->transp.offset = 0;
- fix->visual = FB_VISUAL_TRUECOLOR;
- break;
- case 24:
- case 32:
- var->red.offset = 16;
- var->red.length = 8;
- var->green.offset = 8;
- var->green.length = 8;
- var->blue.offset = 0;
- var->blue.length = 8;
- fix->visual = FB_VISUAL_TRUECOLOR;
- break;
- default:
- ret = -EINVAL;
- break;
- }
+ ret = lynxfb_set_color_offsets(info);
+
var->height = var->width = -1;
var->accel_flags = 0;/*FB_ACCELF_TEXT;*/
if (ret) {
- pr_err("pixel bpp format not satisfied\n.");
+ pr_err("bpp %d not supported\n", var->bits_per_pixel);
return ret;
}
ret = hw_sm750_crtc_setMode(crtc, var, fix);
@@ -385,61 +407,30 @@
return chan << bf->offset;
}
-#ifdef CONFIG_PM
-static int lynxfb_suspend(struct pci_dev *pdev, pm_message_t mesg)
+static int __maybe_unused lynxfb_suspend(struct device *dev)
{
struct fb_info *info;
struct sm750_dev *sm750_dev;
- int ret;
- if (mesg.event == pdev->dev.power.power_state.event)
- return 0;
-
- ret = 0;
- sm750_dev = pci_get_drvdata(pdev);
- switch (mesg.event) {
- case PM_EVENT_FREEZE:
- case PM_EVENT_PRETHAW:
- pdev->dev.power.power_state = mesg;
- return 0;
- }
+ sm750_dev = dev_get_drvdata(dev);
console_lock();
- if (mesg.event & PM_EVENT_SLEEP) {
- info = sm750_dev->fbinfo[0];
- if (info)
- /* 1 means do suspend */
- fb_set_suspend(info, 1);
- info = sm750_dev->fbinfo[1];
- if (info)
- /* 1 means do suspend */
- fb_set_suspend(info, 1);
+ info = sm750_dev->fbinfo[0];
+ if (info)
+ /* 1 means do suspend */
+ fb_set_suspend(info, 1);
+ info = sm750_dev->fbinfo[1];
+ if (info)
+ /* 1 means do suspend */
+ fb_set_suspend(info, 1);
- ret = pci_save_state(pdev);
- if (ret) {
- dev_err(&pdev->dev,
- "error:%d occurred in pci_save_state\n", ret);
- goto lynxfb_suspend_err;
- }
-
- ret = pci_set_power_state(pdev, pci_choose_state(pdev, mesg));
- if (ret) {
- dev_err(&pdev->dev,
- "error:%d occurred in pci_set_power_state\n",
- ret);
- goto lynxfb_suspend_err;
- }
- }
-
- pdev->dev.power.power_state = mesg;
-
-lynxfb_suspend_err:
console_unlock();
- return ret;
+ return 0;
}
-static int lynxfb_resume(struct pci_dev *pdev)
+static int __maybe_unused lynxfb_resume(struct device *dev)
{
+ struct pci_dev *pdev = to_pci_dev(dev);
struct fb_info *info;
struct sm750_dev *sm750_dev;
@@ -447,31 +438,9 @@
struct lynxfb_crtc *crtc;
struct lynx_cursor *cursor;
- int ret;
-
- ret = 0;
sm750_dev = pci_get_drvdata(pdev);
console_lock();
-
- ret = pci_set_power_state(pdev, PCI_D0);
- if (ret) {
- dev_err(&pdev->dev,
- "error:%d occurred in pci_set_power_state\n", ret);
- goto lynxfb_resume_err;
- }
-
- if (pdev->dev.power.power_state.event != PM_EVENT_FREEZE) {
- pci_restore_state(pdev);
- ret = pci_enable_device(pdev);
- if (ret) {
- dev_err(&pdev->dev,
- "error:%d occurred in pci_enable_device\n",
- ret);
- goto lynxfb_resume_err;
- }
- pci_set_master(pdev);
- }
hw_sm750_inithw(sm750_dev, pdev);
@@ -501,19 +470,19 @@
pdev->dev.power.power_state.event = PM_EVENT_RESUME;
-lynxfb_resume_err:
console_unlock();
- return ret;
+ return 0;
}
-#endif
static int lynxfb_ops_check_var(struct fb_var_screeninfo *var,
struct fb_info *info)
{
+ int ret;
struct lynxfb_par *par;
struct lynxfb_crtc *crtc;
resource_size_t request;
+ ret = 0;
par = info->par;
crtc = &par->crtc;
@@ -522,47 +491,17 @@
var->yres,
var->bits_per_pixel);
- switch (var->bits_per_pixel) {
- case 8:
- info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
- var->red.offset = 0;
- var->red.length = 8;
- var->green.offset = 0;
- var->green.length = 8;
- var->blue.offset = 0;
- var->blue.length = 8;
- var->transp.length = 0;
- var->transp.offset = 0;
- break;
- case 16:
- var->red.offset = 11;
- var->red.length = 5;
- var->green.offset = 5;
- var->green.length = 6;
- var->blue.offset = 0;
- var->blue.length = 5;
- var->transp.length = 0;
- var->transp.offset = 0;
- info->fix.visual = FB_VISUAL_TRUECOLOR;
- break;
- case 24:
- case 32:
- var->red.offset = 16;
- var->red.length = 8;
- var->green.offset = 8;
- var->green.length = 8;
- var->blue.offset = 0;
- var->blue.length = 8;
- info->fix.visual = FB_VISUAL_TRUECOLOR;
- break;
- default:
+ ret = lynxfb_set_color_offsets(info);
+
+ if (ret) {
pr_err("bpp %d not supported\n", var->bits_per_pixel);
- return -EINVAL;
+ return ret;
}
+
var->height = var->width = -1;
var->accel_flags = 0;/* FB_ACCELF_TEXT; */
- /* check if current fb's video memory big enought to hold the onscreen*/
+ /* check if current fb's video memory big enough to hold the onscreen*/
request = var->xres_virtual * (var->bits_per_pixel >> 3);
/* defaulty crtc->channel go with par->index */
@@ -695,7 +634,7 @@
output->paths = sm750_crt;
crtc->channel = sm750_secondary;
/* not consider of padding stuffs for oScreen,need fix */
- crtc->oScreen = (sm750_dev->vidmem_size >> 1);
+ crtc->oScreen = sm750_dev->vidmem_size >> 1;
crtc->vScreen = sm750_dev->pvMem + crtc->oScreen;
}
break;
@@ -708,8 +647,10 @@
} else {
output->paths = sm750_crt;
crtc->channel = sm750_primary;
- /* not consider of padding stuffs for oScreen,need fix */
- crtc->oScreen = (sm750_dev->vidmem_size >> 1);
+ /* not consider of padding stuffs for oScreen,
+ * need fix
+ */
+ crtc->oScreen = sm750_dev->vidmem_size >> 1;
crtc->vScreen = sm750_dev->pvMem + crtc->oScreen;
}
break;
@@ -747,7 +688,7 @@
lynx750_ext, NULL, vesa_modes,
};
int cdb[] = {ARRAY_SIZE(lynx750_ext), 0, VESA_MODEDB_SIZE};
- static const char *mdb_desc[] = {
+ static const char * const mdb_desc[] = {
"driver prepared modes",
"kernel prepared default modedb",
"kernel HELPERS prepared vesa_modes",
@@ -892,16 +833,8 @@
pr_info("fix->mmio_start = %lx\n", fix->mmio_start);
fix->mmio_len = sm750_dev->vidreg_size;
pr_info("fix->mmio_len = %x\n", fix->mmio_len);
- switch (var->bits_per_pixel) {
- case 8:
- fix->visual = FB_VISUAL_PSEUDOCOLOR;
- break;
- case 16:
- case 24:
- case 32:
- fix->visual = FB_VISUAL_TRUECOLOR;
- break;
- }
+
+ lynxfb_set_visual_mode(info);
/* set var */
var->activate = FB_ACTIVATE_NOW;
@@ -1008,7 +941,7 @@
}
}
-static void sm750fb_frambuffer_release(struct sm750_dev *sm750_dev)
+static void sm750fb_framebuffer_release(struct sm750_dev *sm750_dev)
{
struct fb_info *fb_info;
@@ -1020,7 +953,7 @@
}
}
-static int sm750fb_frambuffer_alloc(struct sm750_dev *sm750_dev, int fbidx)
+static int sm750fb_framebuffer_alloc(struct sm750_dev *sm750_dev, int fbidx)
{
struct fb_info *fb_info;
struct lynxfb_par *par;
@@ -1138,7 +1071,7 @@
/* allocate frame buffer info structures according to g_dualview */
max_fb = g_dualview ? 2 : 1;
for (fbidx = 0; fbidx < max_fb; fbidx++) {
- err = sm750fb_frambuffer_alloc(sm750_dev, fbidx);
+ err = sm750fb_framebuffer_alloc(sm750_dev, fbidx);
if (err)
goto release_fb;
}
@@ -1146,7 +1079,7 @@
return 0;
release_fb:
- sm750fb_frambuffer_release(sm750_dev);
+ sm750fb_framebuffer_release(sm750_dev);
return err;
}
@@ -1156,7 +1089,7 @@
sm750_dev = pci_get_drvdata(pdev);
- sm750fb_frambuffer_release(sm750_dev);
+ sm750fb_framebuffer_release(sm750_dev);
arch_phys_wc_del(sm750_dev->mtrr.vram);
iounmap(sm750_dev->pvReg);
@@ -1222,15 +1155,14 @@
MODULE_DEVICE_TABLE(pci, smi_pci_table);
+static SIMPLE_DEV_PM_OPS(lynxfb_pm_ops, lynxfb_suspend, lynxfb_resume);
+
static struct pci_driver lynxfb_driver = {
.name = "sm750fb",
.id_table = smi_pci_table,
.probe = lynxfb_pci_probe,
.remove = lynxfb_pci_remove,
-#ifdef CONFIG_PM
- .suspend = lynxfb_suspend,
- .resume = lynxfb_resume,
-#endif
+ .driver.pm = &lynxfb_pm_ops,
};
static int __init lynxfb_init(void)
--
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