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In order to support backwards compatibility with older firmwares when a driver is updated by a new kernel release, the i2400m bus drivers can declare a list of firmware files they can work with (in general these will be each a different version). The firmware loader will try them in sequence until one loads. Thus, if a user doesn't have the latest and greatest firmware that a newly installed kernel would require, the driver would fall back to the firmware from a previous release. To support this, the i2400m->bus_fw_name is changed to be a NULL terminated array firmware file names (and renamed to bus_fw_names) and we add a new entry (i2400m->fw_name) that points to the name of the firmware being currently used. All code that needs to print the firmware file name uses i2400m->fw_name instead of the old i2400m->bus_fw_name. The code in i2400m_dev_bootstrap() that loads the firmware is changed with an iterator over the firmware file name list that tries to load each form user space, using the first one that succeeds in request_firmware() (and thus stopping the iteration). The USB and SDIO bus drivers are updated to take advantage of this and reflect which firmwares they support. Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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| .. | ||
| control.c | ||
| debug-levels.h | ||
| debugfs.c | ||
| driver.c | ||
| fw.c | ||
| i2400m-sdio.h | ||
| i2400m-usb.h | ||
| i2400m.h | ||
| Kconfig | ||
| Makefile | ||
| netdev.c | ||
| op-rfkill.c | ||
| rx.c | ||
| sdio-debug-levels.h | ||
| sdio-fw.c | ||
| sdio-rx.c | ||
| sdio-tx.c | ||
| sdio.c | ||
| tx.c | ||
| usb-debug-levels.h | ||
| usb-fw.c | ||
| usb-notif.c | ||
| usb-rx.c | ||
| usb-tx.c | ||
| usb.c | ||