mmc: Add memory detect node for service menu (1bcc1c82) · Commits · e / devices / android_kernel_fairphone_FP3

drivers/mmc/core/mmc.c

+32 −0

Original line number	Diff line number	Diff line
		@@ -15,6 +15,7 @@
		#include <linux/slab.h>
		#include <linux/stat.h>
		#include <linux/pm_runtime.h>
		#include <linux/seq_file.h>

		#include <linux/mmc/host.h>
		#include <linux/mmc/card.h>
		@@ -27,10 +28,13 @@
		#include "bus.h"
		#include "mmc_ops.h"
		#include "sd_ops.h"
		#include <linux/proc_fs.h>

		#define DEFAULT_CMD6_TIMEOUT_MS 500
		#define MIN_CACHE_EN_TIMEOUT_MS 1600

		static u32 memory_cid = 0x0;

		static const unsigned int tran_exp[] = {
		10000, 100000, 1000000, 10000000,
		0, 0, 0, 0
		@@ -3156,6 +3160,29 @@ static const struct mmc_bus_ops mmc_ops = {
		.post_hibernate = mmc_post_hibernate
		};

		static int proc_memory_vendor_show(struct seq_file m, void v)
		{
		if (memory_cid==0x15010052) {
		seq_printf(m, "Samsung_2nd\n");
		}
		else {
		seq_printf(m, "Samsung_Main\n");
		}
		return 0;
		}

		static int proc_memory_vendor_open(struct inode inode, struct file file)
		{
		return single_open(file, proc_memory_vendor_show, NULL);
		}

		static const struct file_operations proc_memory_vendor_fops = {
		.open = proc_memory_vendor_open,
		.read = seq_read,
		.llseek = seq_lseek,
		.release = single_release,
		};

		/*
		* Starting point for MMC card init.
		*/
		@@ -3219,6 +3246,11 @@ int mmc_attach_mmc(struct mmc_host *host)

		register_reboot_notifier(&host->card->reboot_notify);

		proc_create("memory_vendor", 0, NULL, &proc_memory_vendor_fops);
		if (host->card->type == MMC_TYPE_MMC) {
		memory_cid=host->card->raw_cid[0];
		}

		return 0;

		remove_card: