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remoteproc: Support custom firmware handlers

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Firmware handling is made customizable.
This is done by creating a separate ops structure for the
firmware functions that depends on a particular firmware
format (such as ELF). The ELF functions are default used
unless the HW driver explicitly injects another firmware
handler by updating rproc->fw_ops.
The function rproc_da_to_va() is exported, as custom
firmware handlers may need to use this function.

Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com>
[ohad: namespace fixes, whitespace fixes, style fixes]
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
This commit is contained in:
Sjur Brændeland
2012-06-19 10:08:18 +03:00
committed by Ohad Ben-Cohen
parent 72854fb042
commit 4afc89d66c
4 changed files with 79 additions and 16 deletions
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30
drivers/remoteproc/remoteproc_elf_loader.c
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@@ -33,14 +33,14 @@
#include "remoteproc_internal.h"
/**
* rproc_fw_sanity_check() - Sanity Check ELF firmware image
* rproc_elf_sanity_check() - Sanity Check ELF firmware image
* @rproc: the remote processor handle
* @fw: the ELF firmware image
*
* Make sure this fw image is sane.
*/
int
rproc_fw_sanity_check(struct rproc *rproc, const struct firmware *fw)
static int
rproc_elf_sanity_check(struct rproc *rproc, const struct firmware *fw)
{
const char *name = rproc->firmware;
struct device *dev = &rproc->dev;
@@ -100,7 +100,7 @@ rproc_fw_sanity_check(struct rproc *rproc, const struct firmware *fw)
}
/**
* rproc_get_boot_addr() - Get rproc's boot address.
* rproc_elf_get_boot_addr() - Get rproc's boot address.
* @rproc: the remote processor handle
* @fw: the ELF firmware image
*
@@ -110,7 +110,8 @@ rproc_fw_sanity_check(struct rproc *rproc, const struct firmware *fw)
* Note that the boot address is not a configurable property of all remote
* processors. Some will always boot at a specific hard-coded address.
*/
u32 rproc_get_boot_addr(struct rproc *rproc, const struct firmware *fw)
static
u32 rproc_elf_get_boot_addr(struct rproc *rproc, const struct firmware *fw)
{
struct elf32_hdr *ehdr = (struct elf32_hdr *)fw->data;
@@ -118,7 +119,7 @@ u32 rproc_get_boot_addr(struct rproc *rproc, const struct firmware *fw)
}
/**
* rproc_load_segments() - load firmware segments to memory
* rproc_elf_load_segments() - load firmware segments to memory
* @rproc: remote processor which will be booted using these fw segments
* @fw: the ELF firmware image
*
@@ -141,8 +142,8 @@ u32 rproc_get_boot_addr(struct rproc *rproc, const struct firmware *fw)
* directly allocate memory for every segment/resource. This is not yet
* supported, though.
*/
int
rproc_load_segments(struct rproc *rproc, const struct firmware *fw)
static int
rproc_elf_load_segments(struct rproc *rproc, const struct firmware *fw)
{
struct device *dev = &rproc->dev;
struct elf32_hdr *ehdr;
@@ -208,7 +209,7 @@ rproc_load_segments(struct rproc *rproc, const struct firmware *fw)
}
/**
* rproc_find_rsc_table() - find the resource table
* rproc_elf_find_rsc_table() - find the resource table
* @rproc: the rproc handle
* @fw: the ELF firmware image
* @tablesz: place holder for providing back the table size
@@ -222,8 +223,8 @@ rproc_load_segments(struct rproc *rproc, const struct firmware *fw)
* size into @tablesz. If a valid table isn't found, NULL is returned
* (and @tablesz isn't set).
*/
struct resource_table *
rproc_find_rsc_table(struct rproc *rproc, const struct firmware *fw,
static struct resource_table *
rproc_elf_find_rsc_table(struct rproc *rproc, const struct firmware *fw,
int *tablesz)
{
struct elf32_hdr *ehdr;
@@ -285,3 +286,10 @@ rproc_find_rsc_table(struct rproc *rproc, const struct firmware *fw,
return table;
}
const struct rproc_fw_ops rproc_elf_fw_ops = {
.load = rproc_elf_load_segments,
.find_rsc_table = rproc_elf_find_rsc_table,
.sanity_check = rproc_elf_sanity_check,
.get_boot_addr = rproc_elf_get_boot_addr
};