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path: root/drivers/fsi/fsi-core.c
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Diffstat (limited to 'drivers/fsi/fsi-core.c')
-rw-r--r--drivers/fsi/fsi-core.c30
1 files changed, 24 insertions, 6 deletions
diff --git a/drivers/fsi/fsi-core.c b/drivers/fsi/fsi-core.c
index 626cc0672552..36813651ac0a 100644
--- a/drivers/fsi/fsi-core.c
+++ b/drivers/fsi/fsi-core.c
@@ -78,10 +78,6 @@ static int fsi_master_read(struct fsi_master *master, int link,
uint8_t slave_id, uint32_t addr, void *val, size_t size);
static int fsi_master_write(struct fsi_master *master, int link,
uint8_t slave_id, uint32_t addr, const void *val, size_t size);
-static int fsi_slave_read(struct fsi_slave *slave, uint32_t addr,
- void *val, size_t size);
-static int fsi_slave_write(struct fsi_slave *slave, uint32_t addr,
- const void *val, size_t size);
/*
* fsi_device_read() / fsi_device_write() / fsi_device_peek()
@@ -174,7 +170,7 @@ static int fsi_slave_calc_addr(struct fsi_slave *slave, uint32_t *addrp,
return 0;
}
-static int fsi_slave_read(struct fsi_slave *slave, uint32_t addr,
+int fsi_slave_read(struct fsi_slave *slave, uint32_t addr,
void *val, size_t size)
{
uint8_t id = slave->id;
@@ -187,8 +183,9 @@ static int fsi_slave_read(struct fsi_slave *slave, uint32_t addr,
return fsi_master_read(slave->master, slave->link, id,
addr, val, size);
}
+EXPORT_SYMBOL_GPL(fsi_slave_read);
-static int fsi_slave_write(struct fsi_slave *slave, uint32_t addr,
+int fsi_slave_write(struct fsi_slave *slave, uint32_t addr,
const void *val, size_t size)
{
uint8_t id = slave->id;
@@ -201,6 +198,27 @@ static int fsi_slave_write(struct fsi_slave *slave, uint32_t addr,
return fsi_master_write(slave->master, slave->link, id,
addr, val, size);
}
+EXPORT_SYMBOL_GPL(fsi_slave_write);
+
+extern int fsi_slave_claim_range(struct fsi_slave *slave,
+ uint32_t addr, uint32_t size)
+{
+ if (addr + size < addr)
+ return -EINVAL;
+
+ if (addr + size > slave->size)
+ return -EINVAL;
+
+ /* todo: check for overlapping claims */
+ return 0;
+}
+EXPORT_SYMBOL_GPL(fsi_slave_claim_range);
+
+extern void fsi_slave_release_range(struct fsi_slave *slave,
+ uint32_t addr, uint32_t size)
+{
+}
+EXPORT_SYMBOL_GPL(fsi_slave_release_range);
static int fsi_slave_scan(struct fsi_slave *slave)
{