From mboxrd@z Thu Jan 1 00:00:00 1970 From: Adrian Hunter Subject: [PATCH V3 8/30] omap_hsmmc: add debugfs entry (host registers) Date: Wed, 09 Sep 2009 14:57:34 +0300 Message-ID: <20090909115734.12833.4891.sendpatchset@ahunter-laptop> References: <20090909115633.12833.39619.sendpatchset@ahunter-laptop> Return-path: Received: from smtp.nokia.com ([192.100.122.233]:42792 "EHLO mgw-mx06.nokia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753068AbZIIL5W (ORCPT ); Wed, 9 Sep 2009 07:57:22 -0400 In-Reply-To: <20090909115633.12833.39619.sendpatchset@ahunter-laptop> Sender: linux-mmc-owner@vger.kernel.org List-Id: linux-mmc@vger.kernel.org To: Andrew Morton Cc: Jarkko Lavinen , Adrian Hunter , Madhusudhan Chikkature , linux-mmc Mailing List , linux-omap Mailing List , Pierre Ossman , Matt Fleming >>From 9ef69fd17bbd1d598a7f262d5940f88dbfff526c Mon Sep 17 00:00:00 2001 From: Denis Karpov Date: Wed, 22 Apr 2009 14:21:34 +0200 Subject: [PATCH] omap_hsmmc: add debugfs entry (host registers) Adds /kernel/debug/mmc/regs entry, contents show registers' state and some driver internal state variables. Signed-off-by: Denis Karpov Signed-off-by: Adrian Hunter --- drivers/mmc/host/omap_hsmmc.c | 57 +++++++++++++++++++++++++++++++++++++++++ 1 files changed, 57 insertions(+), 0 deletions(-) diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index 1cf9cfb..cbd8376 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -17,6 +17,8 @@ #include #include +#include +#include #include #include #include @@ -967,6 +969,59 @@ static struct mmc_host_ops mmc_omap_ops = { /* NYET -- enable_sdio_irq */ }; +#ifdef CONFIG_DEBUG_FS + +static int mmc_regs_show(struct seq_file *s, void *data) +{ + struct mmc_host *mmc = s->private; + struct mmc_omap_host *host = mmc_priv(mmc); + + seq_printf(s, "mmc%d regs:\n", mmc->index); + + seq_printf(s, "SYSCONFIG:\t0x%08x\n", + OMAP_HSMMC_READ(host->base, SYSCONFIG)); + seq_printf(s, "CON:\t\t0x%08x\n", + OMAP_HSMMC_READ(host->base, CON)); + seq_printf(s, "HCTL:\t\t0x%08x\n", + OMAP_HSMMC_READ(host->base, HCTL)); + seq_printf(s, "SYSCTL:\t\t0x%08x\n", + OMAP_HSMMC_READ(host->base, SYSCTL)); + seq_printf(s, "IE:\t\t0x%08x\n", + OMAP_HSMMC_READ(host->base, IE)); + seq_printf(s, "ISE:\t\t0x%08x\n", + OMAP_HSMMC_READ(host->base, ISE)); + seq_printf(s, "CAPA:\t\t0x%08x\n", + OMAP_HSMMC_READ(host->base, CAPA)); + return 0; +} + +static int mmc_regs_open(struct inode *inode, struct file *file) +{ + return single_open(file, mmc_regs_show, inode->i_private); +} + +static const struct file_operations mmc_regs_fops = { + .open = mmc_regs_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static void omap_mmc_debugfs(struct mmc_host *mmc) +{ + if (mmc->debugfs_root) + debugfs_create_file("regs", S_IRUSR, mmc->debugfs_root, + mmc, &mmc_regs_fops); +} + +#else + +static void omap_mmc_debugfs(struct mmc_host *mmc) +{ +} + +#endif + static int __init omap_mmc_probe(struct platform_device *pdev) { struct omap_mmc_platform_data *pdata = pdev->dev.platform_data; @@ -1150,6 +1205,8 @@ static int __init omap_mmc_probe(struct platform_device *pdev) goto err_cover_switch; } + omap_mmc_debugfs(mmc); + return 0; err_cover_switch: -- 1.5.6.3