Adding upstream version 4.19.249.upstream/4.19.249upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 205 insertions, 0 deletions

diff --git a/drivers/isdn/hardware/eicon/s_pri.c b/drivers/isdn/hardware/eicon/s_pri.c
new file mode 100644
index 000000000..ddd0e0ef8
--- /dev/null
+++ b/drivers/isdn/hardware/eicon/s_pri.c
@@ -0,0 +1,205 @@
+
+/*
+ *
+ Copyright (c) Eicon Networks, 2002.
+ *
+ This source file is supplied for the use with
+ Eicon Networks range of DIVA Server Adapters.
+ *
+ Eicon File Revision :    2.1
+ *
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+ *
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY OF ANY KIND WHATSOEVER INCLUDING ANY
+ implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ See the GNU General Public License for more details.
+ *
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+#include "platform.h"
+#include "di_defs.h"
+#include "pc.h"
+#include "pr_pc.h"
+#include "di.h"
+#include "mi_pc.h"
+#include "pc_maint.h"
+#include "divasync.h"
+#include "io.h"
+#include "helpers.h"
+#include "dsrv_pri.h"
+#include "dsp_defs.h"
+/*****************************************************************************/
+#define MAX_XLOG_SIZE  (64 * 1024)
+/* -------------------------------------------------------------------------
+   Does return offset between ADAPTER->ram and real begin of memory
+   ------------------------------------------------------------------------- */
+static dword pri_ram_offset(ADAPTER *a) {
+	return ((dword)MP_SHARED_RAM_OFFSET);
+}
+/* -------------------------------------------------------------------------
+   Recovery XLOG buffer from the card
+   ------------------------------------------------------------------------- */
+static void pri_cpu_trapped(PISDN_ADAPTER IoAdapter) {
+	byte  __iomem *base;
+	word *Xlog;
+	dword   regs[4], TrapID, size;
+	Xdesc   xlogDesc;
+/*
+ * check for trapped MIPS 46xx CPU, dump exception frame
+ */
+	base   = DIVA_OS_MEM_ATTACH_ADDRESS(IoAdapter);
+	TrapID = READ_DWORD(&base[0x80]);
+	if ((TrapID == 0x99999999) || (TrapID == 0x99999901))
+	{
+		dump_trap_frame(IoAdapter, &base[0x90]);
+		IoAdapter->trapped = 1;
+	}
+	regs[0] = READ_DWORD(&base[MP_PROTOCOL_OFFSET + 0x70]);
+	regs[1] = READ_DWORD(&base[MP_PROTOCOL_OFFSET + 0x74]);
+	regs[2] = READ_DWORD(&base[MP_PROTOCOL_OFFSET + 0x78]);
+	regs[3] = READ_DWORD(&base[MP_PROTOCOL_OFFSET + 0x7c]);
+	regs[0] &= IoAdapter->MemorySize - 1;
+	if ((regs[0] < IoAdapter->MemorySize - 1))
+	{
+		if (!(Xlog = (word *)diva_os_malloc(0, MAX_XLOG_SIZE))) {
+			DIVA_OS_MEM_DETACH_ADDRESS(IoAdapter, base);
+			return;
+		}
+		size = IoAdapter->MemorySize - regs[0];
+		if (size > MAX_XLOG_SIZE)
+			size = MAX_XLOG_SIZE;
+		memcpy_fromio(Xlog, &base[regs[0]], size);
+		xlogDesc.buf = Xlog;
+		xlogDesc.cnt = READ_WORD(&base[regs[1] & (IoAdapter->MemorySize - 1)]);
+		xlogDesc.out = READ_WORD(&base[regs[2] & (IoAdapter->MemorySize - 1)]);
+		dump_xlog_buffer(IoAdapter, &xlogDesc);
+		diva_os_free(0, Xlog);
+		IoAdapter->trapped = 2;
+	}
+	DIVA_OS_MEM_DETACH_ADDRESS(IoAdapter, base);
+}
+/* -------------------------------------------------------------------------
+   Hardware reset of PRI card
+   ------------------------------------------------------------------------- */
+static void reset_pri_hardware(PISDN_ADAPTER IoAdapter) {
+	byte __iomem *p = DIVA_OS_MEM_ATTACH_RESET(IoAdapter);
+	WRITE_BYTE(p, _MP_RISC_RESET | _MP_LED1 | _MP_LED2);
+	diva_os_wait(50);
+	WRITE_BYTE(p, 0x00);
+	diva_os_wait(50);
+	DIVA_OS_MEM_DETACH_RESET(IoAdapter, p);
+}
+/* -------------------------------------------------------------------------
+   Stop Card Hardware
+   ------------------------------------------------------------------------- */
+static void stop_pri_hardware(PISDN_ADAPTER IoAdapter) {
+	dword i;
+	byte __iomem *p;
+	dword volatile __iomem *cfgReg = (void __iomem *)DIVA_OS_MEM_ATTACH_CFG(IoAdapter);
+	WRITE_DWORD(&cfgReg[3], 0);
+	WRITE_DWORD(&cfgReg[1], 0);
+	DIVA_OS_MEM_DETACH_CFG(IoAdapter, cfgReg);
+	IoAdapter->a.ram_out(&IoAdapter->a, &RAM->SWReg, SWREG_HALT_CPU);
+	i = 0;
+	while ((i < 100) && (IoAdapter->a.ram_in(&IoAdapter->a, &RAM->SWReg) != 0))
+	{
+		diva_os_wait(1);
+		i++;
+	}
+	DBG_TRC(("%s: PRI stopped (%d)", IoAdapter->Name, i))
+		cfgReg = (void __iomem *)DIVA_OS_MEM_ATTACH_CFG(IoAdapter);
+	WRITE_DWORD(&cfgReg[0], ((dword)(~0x03E00000)));
+	DIVA_OS_MEM_DETACH_CFG(IoAdapter, cfgReg);
+	diva_os_wait(1);
+	p = DIVA_OS_MEM_ATTACH_RESET(IoAdapter);
+	WRITE_BYTE(p, _MP_RISC_RESET | _MP_LED1 | _MP_LED2);
+	DIVA_OS_MEM_DETACH_RESET(IoAdapter, p);
+}
+static int load_pri_hardware(PISDN_ADAPTER IoAdapter) {
+	return (0);
+}
+/* --------------------------------------------------------------------------
+   PRI Adapter interrupt Service Routine
+   -------------------------------------------------------------------------- */
+static int pri_ISR(struct _ISDN_ADAPTER *IoAdapter) {
+	byte __iomem *cfg = DIVA_OS_MEM_ATTACH_CFG(IoAdapter);
+	if (!(READ_DWORD(cfg) & 0x80000000)) {
+		DIVA_OS_MEM_DETACH_CFG(IoAdapter, cfg);
+		return (0);
+	}
+	/*
+	  clear interrupt line
+	*/
+	WRITE_DWORD(cfg, (dword)~0x03E00000);
+	DIVA_OS_MEM_DETACH_CFG(IoAdapter, cfg);
+	IoAdapter->IrqCount++;
+	if (IoAdapter->Initialized)
+	{
+		diva_os_schedule_soft_isr(&IoAdapter->isr_soft_isr);
+	}
+	return (1);
+}
+/* -------------------------------------------------------------------------
+   Disable interrupt in the card hardware
+   ------------------------------------------------------------------------- */
+static void disable_pri_interrupt(PISDN_ADAPTER IoAdapter) {
+	dword volatile __iomem *cfgReg = (dword volatile __iomem *)DIVA_OS_MEM_ATTACH_CFG(IoAdapter);
+	WRITE_DWORD(&cfgReg[3], 0);
+	WRITE_DWORD(&cfgReg[1], 0);
+	WRITE_DWORD(&cfgReg[0], (dword)(~0x03E00000));
+	DIVA_OS_MEM_DETACH_CFG(IoAdapter, cfgReg);
+}
+/* -------------------------------------------------------------------------
+   Install entry points for PRI Adapter
+   ------------------------------------------------------------------------- */
+static void prepare_common_pri_functions(PISDN_ADAPTER IoAdapter) {
+	ADAPTER *a = &IoAdapter->a;
+	a->ram_in           = mem_in;
+	a->ram_inw          = mem_inw;
+	a->ram_in_buffer    = mem_in_buffer;
+	a->ram_look_ahead   = mem_look_ahead;
+	a->ram_out          = mem_out;
+	a->ram_outw         = mem_outw;
+	a->ram_out_buffer   = mem_out_buffer;
+	a->ram_inc          = mem_inc;
+	a->ram_offset       = pri_ram_offset;
+	a->ram_out_dw    = mem_out_dw;
+	a->ram_in_dw    = mem_in_dw;
+	a->istream_wakeup   = pr_stream;
+	IoAdapter->out      = pr_out;
+	IoAdapter->dpc      = pr_dpc;
+	IoAdapter->tst_irq  = scom_test_int;
+	IoAdapter->clr_irq  = scom_clear_int;
+	IoAdapter->pcm      = (struct pc_maint *)(MIPS_MAINT_OFFS
+						  - MP_SHARED_RAM_OFFSET);
+	IoAdapter->load     = load_pri_hardware;
+	IoAdapter->disIrq   = disable_pri_interrupt;
+	IoAdapter->rstFnc   = reset_pri_hardware;
+	IoAdapter->stop     = stop_pri_hardware;
+	IoAdapter->trapFnc  = pri_cpu_trapped;
+	IoAdapter->diva_isr_handler = pri_ISR;
+}
+/* -------------------------------------------------------------------------
+   Install entry points for PRI Adapter
+   ------------------------------------------------------------------------- */
+void prepare_pri_functions(PISDN_ADAPTER IoAdapter) {
+	IoAdapter->MemorySize = MP_MEMORY_SIZE;
+	prepare_common_pri_functions(IoAdapter);
+	diva_os_prepare_pri_functions(IoAdapter);
+}
+/* -------------------------------------------------------------------------
+   Install entry points for PRI Rev.2 Adapter
+   ------------------------------------------------------------------------- */
+void prepare_pri2_functions(PISDN_ADAPTER IoAdapter) {
+	IoAdapter->MemorySize = MP2_MEMORY_SIZE;
+	prepare_common_pri_functions(IoAdapter);
+	diva_os_prepare_pri2_functions(IoAdapter);
+}
+/* ------------------------------------------------------------------------- */