aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--drivers/char/dsp56k.c84
-rw-r--r--firmware/Makefile1
-rw-r--r--firmware/WHENCE12
-rw-r--r--firmware/dsp56k/bootstrap.asm98
-rw-r--r--firmware/dsp56k/bootstrap.bin.ihex26
5 files changed, 170 insertions, 51 deletions
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 <linux/mm.h>
#include <linux/init.h>
#include <linux/device.h>
+#include <linux/firmware.h>
+#include <linux/platform_device.h>
#include <asm/atarihw.h>
#include <asm/traps.h>
@@ -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 <noring@nocrew.org>
+;
+; 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:$40
+; ; Zero 16384 DSP X and Y words
+; clr A #0,r0
+; clr B #0,r4
+; do #64,<_block1
+; rep #256
+; move A,X:(r0)+ B,Y:(r4)+
+;_block1 ; Zero (32768-512) Program words
+; clr A #512,r0
+; do #126,<_block2
+; rep #256
+; move A,P:(r0)+
+;_block2
+
+ ; Copy DSP program control
+ move #real,r0
+ move #upload,r1
+ do #upload_end-upload,<_copy
+ move P:(r0)+,x0
+ move x0,P:(r1)+
+_copy movep #>4,X:<<M_HCR
+ movep #>$c00,X:<<M_IPR
+ and #<$fe,mr
+ jmp upload
+
+real
+ org P:$7ea9
+upload
+ movep #>1,X:<<M_PBC
+ movep #>0,X:<<M_BCR
+
+next jclr #0,X:<<M_HSR,*
+ movep X:<<M_HRX,A
+ move #>3,x0
+ cmp x0,A #>1,x0
+ jeq <$0
+_get_address
+ jclr #0,X:<<M_HSR,_get_address
+ movep X:<<M_HRX,r0
+_get_length
+ jclr #0,X:<<M_HSR,_get_length
+ movep X:<<M_HRX,y0
+ cmp x0,A #>2,x0
+ jeq load_X
+ cmp x0,A
+ jeq load_Y
+
+load_P do y0,_load
+ jclr #0,X:<<M_HSR,*
+ movep X:<<M_HRX,P:(r0)+
+_load jmp next
+load_X do y0,_load
+ jclr #0,X:<<M_HSR,*
+ movep X:<<M_HRX,X:(r0)+
+_load jmp next
+load_Y do y0,_load
+ jclr #0,X:<<M_HSR,*
+ movep X:<<M_HRX,Y:(r0)+
+_load jmp next
+
+upload_end
+ end
diff --git a/firmware/dsp56k/bootstrap.bin.ihex b/firmware/dsp56k/bootstrap.bin.ihex
new file mode 100644
index 00000000000..233f21fe72b
--- /dev/null
+++ b/firmware/dsp56k/bootstrap.bin.ihex
@@ -0,0 +1,26 @@
+:100000000C004000000000000000000000000000A4
+:1000100000000000000000000000000000000000E0
+:1000200000000000000000000000000000000000D0
+:1000300000000000000000000000000000000000C0
+:1000400000000000000000000000000000000000B0
+:1000500000000000000000000000000000000000A0
+:100060000000000000000000000000000000000090
+:100070000000000000000000000000000000000080
+:100080000000000000000000000000000000000070
+:100090000000000000000000000000000000000060
+:1000A0000000000000000000000000000000000050
+:1000B0000000000000000000000000000000000040
+:1000C00060F40000004F61F400007EA9062E80005D
+:1000D000004707D88407598408F4A800000408F4EE
+:1000E000BF000C0000FEB80AF080007EA908F4A052
+:1000F00000000108F4BE0000000AA980007EAD08DF
+:100100004E2B44F40000000344F4450000010EA00F
+:10011000000AA980007EB508502B0AA980007EB88D
+:1001200008462B44F4450000020AF0AA007EC920CC
+:1001300000450AF0AA007ED006C600007EC60AA9C5
+:1001400080007EC408586B0AF080007EAD06C600B1
+:10015000007ECD0AA980007ECB0858AB0AF0800053
+:100160007EAD06C600007ED40AA980007ED2085863
+:07017000EB0AF080007EADF8
+:00000001FF
+/* DSP56001 bootstrap code */
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-11-27 12:23:07 +0000