From 7f127d5ed0da66053482a3e18014c439da3c41d1 Mon Sep 17 00:00:00 2001 From: Jaswinder Singh Date: Sat, 5 Jul 2008 15:28:30 +0530 Subject: dsp56k: use request_firmware Signed-off-by: Jaswinder Singh Signed-off-by: David Woodhouse --- drivers/char/dsp56k.c | 84 +++++++++++++------------------- firmware/Makefile | 1 + firmware/WHENCE | 12 +++++ firmware/dsp56k/bootstrap.asm | 98 ++++++++++++++++++++++++++++++++++++++ firmware/dsp56k/bootstrap.bin.ihex | 26 ++++++++++ 5 files changed, 170 insertions(+), 51 deletions(-) create mode 100644 firmware/dsp56k/bootstrap.asm create mode 100644 firmware/dsp56k/bootstrap.bin.ihex diff --git a/drivers/char/dsp56k.c b/drivers/char/dsp56k.c index a69c6528326..d716c78f0ff 100644 --- a/drivers/char/dsp56k.c +++ b/drivers/char/dsp56k.c @@ -33,6 +33,8 @@ #include #include #include +#include +#include #include #include @@ -92,49 +94,6 @@ } \ } -/* DSP56001 bootstrap code */ -static char bootstrap[] = { - 0x0c, 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x60, 0xf4, 0x00, 0x00, 0x00, 0x4f, 0x61, 0xf4, - 0x00, 0x00, 0x7e, 0xa9, 0x06, 0x2e, 0x80, 0x00, 0x00, 0x47, - 0x07, 0xd8, 0x84, 0x07, 0x59, 0x84, 0x08, 0xf4, 0xa8, 0x00, - 0x00, 0x04, 0x08, 0xf4, 0xbf, 0x00, 0x0c, 0x00, 0x00, 0xfe, - 0xb8, 0x0a, 0xf0, 0x80, 0x00, 0x7e, 0xa9, 0x08, 0xf4, 0xa0, - 0x00, 0x00, 0x01, 0x08, 0xf4, 0xbe, 0x00, 0x00, 0x00, 0x0a, - 0xa9, 0x80, 0x00, 0x7e, 0xad, 0x08, 0x4e, 0x2b, 0x44, 0xf4, - 0x00, 0x00, 0x00, 0x03, 0x44, 0xf4, 0x45, 0x00, 0x00, 0x01, - 0x0e, 0xa0, 0x00, 0x0a, 0xa9, 0x80, 0x00, 0x7e, 0xb5, 0x08, - 0x50, 0x2b, 0x0a, 0xa9, 0x80, 0x00, 0x7e, 0xb8, 0x08, 0x46, - 0x2b, 0x44, 0xf4, 0x45, 0x00, 0x00, 0x02, 0x0a, 0xf0, 0xaa, - 0x00, 0x7e, 0xc9, 0x20, 0x00, 0x45, 0x0a, 0xf0, 0xaa, 0x00, - 0x7e, 0xd0, 0x06, 0xc6, 0x00, 0x00, 0x7e, 0xc6, 0x0a, 0xa9, - 0x80, 0x00, 0x7e, 0xc4, 0x08, 0x58, 0x6b, 0x0a, 0xf0, 0x80, - 0x00, 0x7e, 0xad, 0x06, 0xc6, 0x00, 0x00, 0x7e, 0xcd, 0x0a, - 0xa9, 0x80, 0x00, 0x7e, 0xcb, 0x08, 0x58, 0xab, 0x0a, 0xf0, - 0x80, 0x00, 0x7e, 0xad, 0x06, 0xc6, 0x00, 0x00, 0x7e, 0xd4, - 0x0a, 0xa9, 0x80, 0x00, 0x7e, 0xd2, 0x08, 0x58, 0xeb, 0x0a, - 0xf0, 0x80, 0x00, 0x7e, 0xad}; -static int sizeof_bootstrap = 375; - - static struct dsp56k_device { unsigned long in_use; long maxio, timeout; @@ -164,18 +123,40 @@ static int dsp56k_reset(void) static int dsp56k_upload(u_char __user *bin, int len) { + struct platform_device *pdev; + const struct firmware *fw; + const char fw_name[] = "dsp56k/bootstrap.bin"; + int err; int i; - u_char *p; - + dsp56k_reset(); - - p = bootstrap; - for (i = 0; i < sizeof_bootstrap/3; i++) { + + pdev = platform_device_register_simple("dsp56k", 0, NULL, 0); + if (IS_ERR(pdev)) { + printk(KERN_ERR "Failed to register device for \"%s\"\n", + fw_name); + return -EINVAL; + } + err = request_firmware(&fw, fw_name, &pdev->dev); + platform_device_unregister(pdev); + if (err) { + printk(KERN_ERR "Failed to load image \"%s\" err %d\n", + fw_name, err); + return err; + } + if (fw->size % 3) { + printk(KERN_ERR "Bogus length %d in image \"%s\"\n", + fw->size, fw_name); + release_firmware(fw); + return -EINVAL; + } + for (i = 0; i < fw->size; i = i + 3) { /* tx_wait(10); */ - dsp56k_host_interface.data.b[1] = *p++; - dsp56k_host_interface.data.b[2] = *p++; - dsp56k_host_interface.data.b[3] = *p++; + dsp56k_host_interface.data.b[1] = fw->data[i]; + dsp56k_host_interface.data.b[2] = fw->data[i + 1]; + dsp56k_host_interface.data.b[3] = fw->data[i + 2]; } + release_firmware(fw); for (; i < 512; i++) { /* tx_wait(10); */ dsp56k_host_interface.data.b[1] = 0; @@ -534,3 +515,4 @@ static void __exit dsp56k_cleanup_driver(void) module_exit(dsp56k_cleanup_driver); MODULE_LICENSE("GPL"); +MODULE_FIRMWARE("dsp56k/bootstrap.bin"); diff --git a/firmware/Makefile b/firmware/Makefile index a162b2928fb..782c499a373 100644 --- a/firmware/Makefile +++ b/firmware/Makefile @@ -20,6 +20,7 @@ fw-external-y := $(subst ",,$(CONFIG_EXTRA_FIRMWARE)) # accurate. In the latter case it doesn't matter -- it'll use $(fw-shipped-all). # But be aware that the config file might not be included at all. +fw-shipped-$(CONFIG_ATARI_DSP56K) += dsp56k/bootstrap.bin fw-shipped-$(CONFIG_ATM_AMBASSADOR) += atmsar11.fw fw-shipped-$(CONFIG_COMPUTONE) += intelliport2.bin fw-shipped-$(CONFIG_DVB_TTUSB_BUDGET) += ttusb-budget/dspbootcode.bin diff --git a/firmware/WHENCE b/firmware/WHENCE index 79e62e2fea5..5c1dc159639 100644 --- a/firmware/WHENCE +++ b/firmware/WHENCE @@ -309,3 +309,15 @@ Licence: Found in hex form in kernel source. -------------------------------------------------------------------------- + +Driver: ATARI_DSP56K - Atari DSP56k support + +File: dsp56k/bootstrap.bin +Source: dsp56k/bootstrap.asm + +Licence: GPLv2 or later + +DSP56001 assembler, possibly buildable with a56 from +http://www.zdomain.com/a56.html + +-------------------------------------------------------------------------- diff --git a/firmware/dsp56k/bootstrap.asm b/firmware/dsp56k/bootstrap.asm new file mode 100644 index 00000000000..10d891929cd --- /dev/null +++ b/firmware/dsp56k/bootstrap.asm @@ -0,0 +1,98 @@ +; Author: Frederik Noring +; +; This file is subject to the terms and conditions of the GNU General Public +; License. See the file COPYING in the main directory of this archive +; for more details. + +; DSP56k loader + +; Host Interface +M_BCR EQU $FFFE ; Port A Bus Control Register +M_PBC EQU $FFE0 ; Port B Control Register +M_PBDDR EQU $FFE2 ; Port B Data Direction Register +M_PBD EQU $FFE4 ; Port B Data Register +M_PCC EQU $FFE1 ; Port C Control Register +M_PCDDR EQU $FFE3 ; Port C Data Direction Register +M_PCD EQU $FFE5 ; Port C Data Register + +M_HCR EQU $FFE8 ; Host Control Register +M_HSR EQU $FFE9 ; Host Status Register +M_HRX EQU $FFEB ; Host Receive Data Register +M_HTX EQU $FFEB ; Host Transmit Data Register + +; SSI, Synchronous Serial Interface +M_RX EQU $FFEF ; Serial Receive Data Register +M_TX EQU $FFEF ; Serial Transmit Data Register +M_CRA EQU $FFEC ; SSI Control Register A +M_CRB EQU $FFED ; SSI Control Register B +M_SR EQU $FFEE ; SSI Status Register +M_TSR EQU $FFEE ; SSI Time Slot Register + +; Exception Processing +M_IPR EQU $FFFF ; Interrupt Priority Register + + org P:$0 +start jmp <$40 + + org P:$40 +; ; Zero 16384 DSP X and Y words +; clr A #0,r0 +; clr B #0,r4 +; do #64,<_block1 +; rep #256 +; move A,X:(r0)+ B,Y:(r4)+ +;_block1 ; Zero (32768-512) Program words +; clr A #512,r0 +; do #126,<_block2 +; rep #256 +; move A,P:(r0)+ +;_block2 + + ; Copy DSP program control + move #real,r0 + move #upload,r1 + do #upload_end-upload,<_copy + move P:(r0)+,x0 + move x0,P:(r1)+ +_copy movep #>4,X:<$c00,X:<1,X:<0,X:<3,x0 + cmp x0,A #>1,x0 + jeq <$0 +_get_address + jclr #0,X:<2,x0 + jeq load_X + cmp x0,A + jeq load_Y + +load_P do y0,_load + jclr #0,X:<