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commit d19486e1f862b7bf52a9b927af6ba5f497bb0ffe Author: chenrun1 <[email protected]> AuthorDate: Fri Jan 26 16:38:41 2024 +0800 driver/filemtd:support isbad & markbad In this change, we can mount a filesystem on filemtd that works like Yaffs and works on the Nand driver Signed-off-by: chenrun1 <[email protected]> --- drivers/mtd/filemtd.c | 44 +++++++++++++++++++++++++++++++++++--------- 1 file changed, 35 insertions(+), 9 deletions(-) diff --git a/drivers/mtd/filemtd.c b/drivers/mtd/filemtd.c index 4857e7e414..5fd6d614cf 100644 --- a/drivers/mtd/filemtd.c +++ b/drivers/mtd/filemtd.c @@ -119,6 +119,8 @@ static ssize_t file_bytewrite(FAR struct mtd_dev_s *dev, off_t offset, #endif static int filemtd_ioctl(FAR struct mtd_dev_s *dev, int cmd, unsigned long arg); +static int filemtd_isbad(FAR struct mtd_dev_s *dev, off_t block); +static int filemtd_markbad(FAR struct mtd_dev_s *dev, off_t block); #ifdef CONFIG_MTD_LOOP static ssize_t mtd_loop_read(FAR struct file *filep, FAR char *buffer, @@ -149,6 +151,28 @@ static const struct file_operations g_fops = * Private Functions ****************************************************************************/ +/**************************************************************************** + * Name: filemtd_isbad + ****************************************************************************/ + +static int filemtd_isbad(FAR struct mtd_dev_s *dev, off_t block) +{ + /* We always think it's all GOODBLOCK */ + + return 0; +} + +/**************************************************************************** + * Name: filemtd_markbad + ****************************************************************************/ + +static int filemtd_markbad(FAR struct mtd_dev_s *dev, off_t block) +{ + /* Provides a dummy interface */ + + return 0; +} + /**************************************************************************** * Name: filemtd_write ****************************************************************************/ @@ -800,17 +824,19 @@ FAR struct mtd_dev_s *filemtd_initialize(FAR const char *path, size_t offset, * nullified by kmm_zalloc). */ - priv->mtd.erase = filemtd_erase; - priv->mtd.bread = filemtd_bread; - priv->mtd.bwrite = filemtd_bwrite; - priv->mtd.read = filemtd_byteread; + priv->mtd.erase = filemtd_erase; + priv->mtd.bread = filemtd_bread; + priv->mtd.bwrite = filemtd_bwrite; + priv->mtd.read = filemtd_byteread; #ifdef CONFIG_MTD_BYTE_WRITE - priv->mtd.write = file_bytewrite; + priv->mtd.write = file_bytewrite; #endif - priv->mtd.ioctl = filemtd_ioctl; - priv->mtd.name = "filemtd"; - priv->offset = offset; - priv->nblocks = nblocks; + priv->mtd.ioctl = filemtd_ioctl; + priv->mtd.isbad = filemtd_isbad; + priv->mtd.markbad = filemtd_markbad; + priv->mtd.name = "filemtd"; + priv->offset = offset; + priv->nblocks = nblocks; return &priv->mtd; }
