Macro parameters should almost always have () around them when used. llvm reported an error on this. Remove redundant parenthesis and put parenthesis around the entire macros with assignments in case they are used in an expression. Remove some unused macros. Reported in https://bugs.launchpad.net/bugs/1651167 Signed-off-by: Corey Minyard <cminyard@mvista.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <1490894892-8055-1-git-send-email-minyard@acm.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
526 lines
16 KiB
C
526 lines
16 KiB
C
/*
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* QEMU ISA IPMI BT emulation
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*
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* Copyright (c) 2015 Corey Minyard, MontaVista Software, LLC
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "qemu/osdep.h"
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#include "qapi/error.h"
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#include "hw/hw.h"
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#include "hw/ipmi/ipmi.h"
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#include "hw/isa/isa.h"
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#include "hw/i386/pc.h"
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/* Control register */
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#define IPMI_BT_CLR_WR_BIT 0
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#define IPMI_BT_CLR_RD_BIT 1
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#define IPMI_BT_H2B_ATN_BIT 2
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#define IPMI_BT_B2H_ATN_BIT 3
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#define IPMI_BT_SMS_ATN_BIT 4
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#define IPMI_BT_HBUSY_BIT 6
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#define IPMI_BT_BBUSY_BIT 7
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#define IPMI_BT_GET_CLR_WR(d) (((d) >> IPMI_BT_CLR_WR_BIT) & 0x1)
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#define IPMI_BT_GET_CLR_RD(d) (((d) >> IPMI_BT_CLR_RD_BIT) & 0x1)
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#define IPMI_BT_GET_H2B_ATN(d) (((d) >> IPMI_BT_H2B_ATN_BIT) & 0x1)
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#define IPMI_BT_B2H_ATN_MASK (1 << IPMI_BT_B2H_ATN_BIT)
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#define IPMI_BT_GET_B2H_ATN(d) (((d) >> IPMI_BT_B2H_ATN_BIT) & 0x1)
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#define IPMI_BT_SET_B2H_ATN(d, v) ((d) = (((d) & ~IPMI_BT_B2H_ATN_MASK) | \
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(((v) & 1) << IPMI_BT_B2H_ATN_BIT)))
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#define IPMI_BT_SMS_ATN_MASK (1 << IPMI_BT_SMS_ATN_BIT)
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#define IPMI_BT_GET_SMS_ATN(d) (((d) >> IPMI_BT_SMS_ATN_BIT) & 0x1)
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#define IPMI_BT_SET_SMS_ATN(d, v) ((d) = (((d) & ~IPMI_BT_SMS_ATN_MASK) | \
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(((v) & 1) << IPMI_BT_SMS_ATN_BIT)))
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#define IPMI_BT_HBUSY_MASK (1 << IPMI_BT_HBUSY_BIT)
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#define IPMI_BT_GET_HBUSY(d) (((d) >> IPMI_BT_HBUSY_BIT) & 0x1)
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#define IPMI_BT_SET_HBUSY(d, v) ((d) = (((d) & ~IPMI_BT_HBUSY_MASK) | \
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(((v) & 1) << IPMI_BT_HBUSY_BIT)))
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#define IPMI_BT_BBUSY_MASK (1 << IPMI_BT_BBUSY_BIT)
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#define IPMI_BT_SET_BBUSY(d, v) ((d) = (((d) & ~IPMI_BT_BBUSY_MASK) | \
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(((v) & 1) << IPMI_BT_BBUSY_BIT)))
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/* Mask register */
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#define IPMI_BT_B2H_IRQ_EN_BIT 0
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#define IPMI_BT_B2H_IRQ_BIT 1
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#define IPMI_BT_B2H_IRQ_EN_MASK (1 << IPMI_BT_B2H_IRQ_EN_BIT)
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#define IPMI_BT_GET_B2H_IRQ_EN(d) (((d) >> IPMI_BT_B2H_IRQ_EN_BIT) & 0x1)
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#define IPMI_BT_SET_B2H_IRQ_EN(d, v) ((d) = (((d) & ~IPMI_BT_B2H_IRQ_EN_MASK) |\
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(((v) & 1) << IPMI_BT_B2H_IRQ_EN_BIT)))
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#define IPMI_BT_B2H_IRQ_MASK (1 << IPMI_BT_B2H_IRQ_BIT)
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#define IPMI_BT_GET_B2H_IRQ(d) (((d) >> IPMI_BT_B2H_IRQ_BIT) & 0x1)
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#define IPMI_BT_SET_B2H_IRQ(d, v) ((d) = (((d) & ~IPMI_BT_B2H_IRQ_MASK) | \
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(((v) & 1) << IPMI_BT_B2H_IRQ_BIT)))
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typedef struct IPMIBT {
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IPMIBmc *bmc;
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bool do_wake;
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qemu_irq irq;
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uint32_t io_base;
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unsigned long io_length;
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MemoryRegion io;
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bool obf_irq_set;
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bool atn_irq_set;
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bool use_irq;
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bool irqs_enabled;
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uint8_t outmsg[MAX_IPMI_MSG_SIZE];
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uint32_t outpos;
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uint32_t outlen;
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uint8_t inmsg[MAX_IPMI_MSG_SIZE];
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uint32_t inlen;
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uint8_t control_reg;
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uint8_t mask_reg;
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/*
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* This is a response number that we send with the command to make
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* sure that the response matches the command.
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*/
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uint8_t waiting_rsp;
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uint8_t waiting_seq;
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} IPMIBT;
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#define IPMI_CMD_GET_BT_INTF_CAP 0x36
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static void ipmi_bt_handle_event(IPMIInterface *ii)
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{
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IPMIInterfaceClass *iic = IPMI_INTERFACE_GET_CLASS(ii);
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IPMIBT *ib = iic->get_backend_data(ii);
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if (ib->inlen < 4) {
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goto out;
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}
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/* Note that overruns are handled by handle_command */
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if (ib->inmsg[0] != (ib->inlen - 1)) {
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/* Length mismatch, just ignore. */
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IPMI_BT_SET_BBUSY(ib->control_reg, 1);
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ib->inlen = 0;
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goto out;
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}
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if ((ib->inmsg[1] == (IPMI_NETFN_APP << 2)) &&
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(ib->inmsg[3] == IPMI_CMD_GET_BT_INTF_CAP)) {
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/* We handle this one ourselves. */
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ib->outmsg[0] = 9;
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ib->outmsg[1] = ib->inmsg[1] | 0x04;
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ib->outmsg[2] = ib->inmsg[2];
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ib->outmsg[3] = ib->inmsg[3];
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ib->outmsg[4] = 0;
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ib->outmsg[5] = 1; /* Only support 1 outstanding request. */
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if (sizeof(ib->inmsg) > 0xff) { /* Input buffer size */
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ib->outmsg[6] = 0xff;
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} else {
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ib->outmsg[6] = (unsigned char) sizeof(ib->inmsg);
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}
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if (sizeof(ib->outmsg) > 0xff) { /* Output buffer size */
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ib->outmsg[7] = 0xff;
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} else {
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ib->outmsg[7] = (unsigned char) sizeof(ib->outmsg);
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}
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ib->outmsg[8] = 10; /* Max request to response time */
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ib->outmsg[9] = 0; /* Don't recommend retries */
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ib->outlen = 10;
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IPMI_BT_SET_BBUSY(ib->control_reg, 0);
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IPMI_BT_SET_B2H_ATN(ib->control_reg, 1);
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if (ib->use_irq && ib->irqs_enabled &&
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!IPMI_BT_GET_B2H_IRQ(ib->mask_reg) &&
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IPMI_BT_GET_B2H_IRQ_EN(ib->mask_reg)) {
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IPMI_BT_SET_B2H_IRQ(ib->mask_reg, 1);
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qemu_irq_raise(ib->irq);
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}
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goto out;
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}
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ib->waiting_seq = ib->inmsg[2];
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ib->inmsg[2] = ib->inmsg[1];
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{
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IPMIBmcClass *bk = IPMI_BMC_GET_CLASS(ib->bmc);
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bk->handle_command(ib->bmc, ib->inmsg + 2, ib->inlen - 2,
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sizeof(ib->inmsg), ib->waiting_rsp);
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}
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out:
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return;
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}
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static void ipmi_bt_handle_rsp(IPMIInterface *ii, uint8_t msg_id,
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unsigned char *rsp, unsigned int rsp_len)
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{
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IPMIInterfaceClass *iic = IPMI_INTERFACE_GET_CLASS(ii);
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IPMIBT *ib = iic->get_backend_data(ii);
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if (ib->waiting_rsp == msg_id) {
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ib->waiting_rsp++;
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if (rsp_len > (sizeof(ib->outmsg) - 2)) {
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ib->outmsg[0] = 4;
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ib->outmsg[1] = rsp[0];
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ib->outmsg[2] = ib->waiting_seq;
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ib->outmsg[3] = rsp[1];
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ib->outmsg[4] = IPMI_CC_CANNOT_RETURN_REQ_NUM_BYTES;
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ib->outlen = 5;
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} else {
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ib->outmsg[0] = rsp_len + 1;
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ib->outmsg[1] = rsp[0];
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ib->outmsg[2] = ib->waiting_seq;
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memcpy(ib->outmsg + 3, rsp + 1, rsp_len - 1);
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ib->outlen = rsp_len + 2;
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}
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IPMI_BT_SET_BBUSY(ib->control_reg, 0);
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IPMI_BT_SET_B2H_ATN(ib->control_reg, 1);
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if (ib->use_irq && ib->irqs_enabled &&
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!IPMI_BT_GET_B2H_IRQ(ib->mask_reg) &&
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IPMI_BT_GET_B2H_IRQ_EN(ib->mask_reg)) {
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IPMI_BT_SET_B2H_IRQ(ib->mask_reg, 1);
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qemu_irq_raise(ib->irq);
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}
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}
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}
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static uint64_t ipmi_bt_ioport_read(void *opaque, hwaddr addr, unsigned size)
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{
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IPMIInterface *ii = opaque;
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IPMIInterfaceClass *iic = IPMI_INTERFACE_GET_CLASS(ii);
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IPMIBT *ib = iic->get_backend_data(ii);
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uint32_t ret = 0xff;
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switch (addr & 3) {
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case 0:
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ret = ib->control_reg;
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break;
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case 1:
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if (ib->outpos < ib->outlen) {
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ret = ib->outmsg[ib->outpos];
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ib->outpos++;
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if (ib->outpos == ib->outlen) {
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ib->outpos = 0;
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ib->outlen = 0;
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}
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} else {
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ret = 0xff;
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}
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break;
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case 2:
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ret = ib->mask_reg;
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break;
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}
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return ret;
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}
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static void ipmi_bt_signal(IPMIBT *ib, IPMIInterface *ii)
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{
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IPMIInterfaceClass *iic = IPMI_INTERFACE_GET_CLASS(ii);
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ib->do_wake = 1;
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while (ib->do_wake) {
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ib->do_wake = 0;
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iic->handle_if_event(ii);
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}
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}
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static void ipmi_bt_ioport_write(void *opaque, hwaddr addr, uint64_t val,
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unsigned size)
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{
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IPMIInterface *ii = opaque;
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IPMIInterfaceClass *iic = IPMI_INTERFACE_GET_CLASS(ii);
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IPMIBT *ib = iic->get_backend_data(ii);
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switch (addr & 3) {
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case 0:
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if (IPMI_BT_GET_CLR_WR(val)) {
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ib->inlen = 0;
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}
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if (IPMI_BT_GET_CLR_RD(val)) {
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ib->outpos = 0;
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}
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if (IPMI_BT_GET_B2H_ATN(val)) {
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IPMI_BT_SET_B2H_ATN(ib->control_reg, 0);
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}
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if (IPMI_BT_GET_SMS_ATN(val)) {
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IPMI_BT_SET_SMS_ATN(ib->control_reg, 0);
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}
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if (IPMI_BT_GET_HBUSY(val)) {
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/* Toggle */
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IPMI_BT_SET_HBUSY(ib->control_reg,
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!IPMI_BT_GET_HBUSY(ib->control_reg));
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}
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if (IPMI_BT_GET_H2B_ATN(val)) {
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IPMI_BT_SET_BBUSY(ib->control_reg, 1);
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ipmi_bt_signal(ib, ii);
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}
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break;
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case 1:
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if (ib->inlen < sizeof(ib->inmsg)) {
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ib->inmsg[ib->inlen] = val;
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}
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ib->inlen++;
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break;
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case 2:
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if (IPMI_BT_GET_B2H_IRQ_EN(val) !=
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IPMI_BT_GET_B2H_IRQ_EN(ib->mask_reg)) {
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if (IPMI_BT_GET_B2H_IRQ_EN(val)) {
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if (IPMI_BT_GET_B2H_ATN(ib->control_reg) ||
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IPMI_BT_GET_SMS_ATN(ib->control_reg)) {
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IPMI_BT_SET_B2H_IRQ(ib->mask_reg, 1);
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qemu_irq_raise(ib->irq);
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}
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IPMI_BT_SET_B2H_IRQ_EN(ib->mask_reg, 1);
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} else {
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if (IPMI_BT_GET_B2H_IRQ(ib->mask_reg)) {
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IPMI_BT_SET_B2H_IRQ(ib->mask_reg, 0);
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qemu_irq_lower(ib->irq);
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}
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IPMI_BT_SET_B2H_IRQ_EN(ib->mask_reg, 0);
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}
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}
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if (IPMI_BT_GET_B2H_IRQ(val) && IPMI_BT_GET_B2H_IRQ(ib->mask_reg)) {
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IPMI_BT_SET_B2H_IRQ(ib->mask_reg, 0);
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qemu_irq_lower(ib->irq);
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}
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break;
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}
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}
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static const MemoryRegionOps ipmi_bt_io_ops = {
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.read = ipmi_bt_ioport_read,
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.write = ipmi_bt_ioport_write,
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.impl = {
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.min_access_size = 1,
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.max_access_size = 1,
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},
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.endianness = DEVICE_LITTLE_ENDIAN,
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};
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static void ipmi_bt_set_atn(IPMIInterface *ii, int val, int irq)
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{
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IPMIInterfaceClass *iic = IPMI_INTERFACE_GET_CLASS(ii);
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IPMIBT *ib = iic->get_backend_data(ii);
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if (!!val == IPMI_BT_GET_SMS_ATN(ib->control_reg)) {
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return;
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}
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IPMI_BT_SET_SMS_ATN(ib->control_reg, val);
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if (val) {
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if (irq && ib->use_irq && ib->irqs_enabled &&
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!IPMI_BT_GET_B2H_ATN(ib->control_reg) &&
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IPMI_BT_GET_B2H_IRQ_EN(ib->mask_reg)) {
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IPMI_BT_SET_B2H_IRQ(ib->mask_reg, 1);
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qemu_irq_raise(ib->irq);
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}
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} else {
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if (!IPMI_BT_GET_B2H_ATN(ib->control_reg) &&
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IPMI_BT_GET_B2H_IRQ(ib->mask_reg)) {
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IPMI_BT_SET_B2H_IRQ(ib->mask_reg, 0);
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qemu_irq_lower(ib->irq);
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}
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}
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}
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static void ipmi_bt_handle_reset(IPMIInterface *ii, bool is_cold)
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{
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IPMIInterfaceClass *iic = IPMI_INTERFACE_GET_CLASS(ii);
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IPMIBT *ib = iic->get_backend_data(ii);
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if (is_cold) {
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/* Disable the BT interrupt on reset */
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if (IPMI_BT_GET_B2H_IRQ(ib->mask_reg)) {
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IPMI_BT_SET_B2H_IRQ(ib->mask_reg, 0);
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qemu_irq_lower(ib->irq);
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}
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IPMI_BT_SET_B2H_IRQ_EN(ib->mask_reg, 0);
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}
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}
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static void ipmi_bt_set_irq_enable(IPMIInterface *ii, int val)
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{
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IPMIInterfaceClass *iic = IPMI_INTERFACE_GET_CLASS(ii);
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IPMIBT *ib = iic->get_backend_data(ii);
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ib->irqs_enabled = val;
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}
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static void ipmi_bt_init(IPMIInterface *ii, Error **errp)
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{
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IPMIInterfaceClass *iic = IPMI_INTERFACE_GET_CLASS(ii);
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IPMIBT *ib = iic->get_backend_data(ii);
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ib->io_length = 3;
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memory_region_init_io(&ib->io, NULL, &ipmi_bt_io_ops, ii, "ipmi-bt", 3);
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}
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#define TYPE_ISA_IPMI_BT "isa-ipmi-bt"
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#define ISA_IPMI_BT(obj) OBJECT_CHECK(ISAIPMIBTDevice, (obj), \
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TYPE_ISA_IPMI_BT)
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typedef struct ISAIPMIBTDevice {
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ISADevice dev;
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int32_t isairq;
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IPMIBT bt;
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uint32_t uuid;
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} ISAIPMIBTDevice;
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static void ipmi_bt_get_fwinfo(struct IPMIInterface *ii, IPMIFwInfo *info)
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{
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ISAIPMIBTDevice *iib = ISA_IPMI_BT(ii);
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info->interface_name = "bt";
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info->interface_type = IPMI_SMBIOS_BT;
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info->ipmi_spec_major_revision = 2;
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info->ipmi_spec_minor_revision = 0;
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info->base_address = iib->bt.io_base;
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info->register_length = iib->bt.io_length;
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info->register_spacing = 1;
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info->memspace = IPMI_MEMSPACE_IO;
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info->irq_type = IPMI_LEVEL_IRQ;
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info->interrupt_number = iib->isairq;
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info->i2c_slave_address = iib->bt.bmc->slave_addr;
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info->uuid = iib->uuid;
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}
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static void ipmi_bt_class_init(IPMIInterfaceClass *iic)
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{
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iic->init = ipmi_bt_init;
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iic->set_atn = ipmi_bt_set_atn;
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iic->handle_rsp = ipmi_bt_handle_rsp;
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iic->handle_if_event = ipmi_bt_handle_event;
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iic->set_irq_enable = ipmi_bt_set_irq_enable;
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iic->reset = ipmi_bt_handle_reset;
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iic->get_fwinfo = ipmi_bt_get_fwinfo;
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}
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static void isa_ipmi_bt_realize(DeviceState *dev, Error **errp)
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{
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ISADevice *isadev = ISA_DEVICE(dev);
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ISAIPMIBTDevice *iib = ISA_IPMI_BT(dev);
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IPMIInterface *ii = IPMI_INTERFACE(dev);
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IPMIInterfaceClass *iic = IPMI_INTERFACE_GET_CLASS(ii);
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if (!iib->bt.bmc) {
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error_setg(errp, "IPMI device requires a bmc attribute to be set");
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return;
|
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}
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|
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iib->uuid = ipmi_next_uuid();
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|
|
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iib->bt.bmc->intf = ii;
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|
|
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iic->init(ii, errp);
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if (*errp)
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return;
|
|
|
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if (iib->isairq > 0) {
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isa_init_irq(isadev, &iib->bt.irq, iib->isairq);
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iib->bt.use_irq = 1;
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}
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|
|
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qdev_set_legacy_instance_id(dev, iib->bt.io_base, iib->bt.io_length);
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|
|
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isa_register_ioport(isadev, &iib->bt.io, iib->bt.io_base);
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}
|
|
|
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static const VMStateDescription vmstate_ISAIPMIBTDevice = {
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.name = TYPE_IPMI_INTERFACE,
|
|
.version_id = 1,
|
|
.minimum_version_id = 1,
|
|
.fields = (VMStateField[]) {
|
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VMSTATE_BOOL(bt.obf_irq_set, ISAIPMIBTDevice),
|
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VMSTATE_BOOL(bt.atn_irq_set, ISAIPMIBTDevice),
|
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VMSTATE_BOOL(bt.use_irq, ISAIPMIBTDevice),
|
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VMSTATE_BOOL(bt.irqs_enabled, ISAIPMIBTDevice),
|
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VMSTATE_UINT32(bt.outpos, ISAIPMIBTDevice),
|
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VMSTATE_VBUFFER_UINT32(bt.outmsg, ISAIPMIBTDevice, 1, NULL, bt.outlen),
|
|
VMSTATE_VBUFFER_UINT32(bt.inmsg, ISAIPMIBTDevice, 1, NULL, bt.inlen),
|
|
VMSTATE_UINT8(bt.control_reg, ISAIPMIBTDevice),
|
|
VMSTATE_UINT8(bt.mask_reg, ISAIPMIBTDevice),
|
|
VMSTATE_UINT8(bt.waiting_rsp, ISAIPMIBTDevice),
|
|
VMSTATE_UINT8(bt.waiting_seq, ISAIPMIBTDevice),
|
|
VMSTATE_END_OF_LIST()
|
|
}
|
|
};
|
|
|
|
static void isa_ipmi_bt_init(Object *obj)
|
|
{
|
|
ISAIPMIBTDevice *iib = ISA_IPMI_BT(obj);
|
|
|
|
ipmi_bmc_find_and_link(obj, (Object **) &iib->bt.bmc);
|
|
|
|
vmstate_register(NULL, 0, &vmstate_ISAIPMIBTDevice, iib);
|
|
}
|
|
|
|
static void *isa_ipmi_bt_get_backend_data(IPMIInterface *ii)
|
|
{
|
|
ISAIPMIBTDevice *iib = ISA_IPMI_BT(ii);
|
|
|
|
return &iib->bt;
|
|
}
|
|
|
|
static Property ipmi_isa_properties[] = {
|
|
DEFINE_PROP_UINT32("ioport", ISAIPMIBTDevice, bt.io_base, 0xe4),
|
|
DEFINE_PROP_INT32("irq", ISAIPMIBTDevice, isairq, 5),
|
|
DEFINE_PROP_END_OF_LIST(),
|
|
};
|
|
|
|
static void isa_ipmi_bt_class_init(ObjectClass *oc, void *data)
|
|
{
|
|
DeviceClass *dc = DEVICE_CLASS(oc);
|
|
IPMIInterfaceClass *iic = IPMI_INTERFACE_CLASS(oc);
|
|
|
|
dc->realize = isa_ipmi_bt_realize;
|
|
dc->props = ipmi_isa_properties;
|
|
|
|
iic->get_backend_data = isa_ipmi_bt_get_backend_data;
|
|
ipmi_bt_class_init(iic);
|
|
}
|
|
|
|
static const TypeInfo isa_ipmi_bt_info = {
|
|
.name = TYPE_ISA_IPMI_BT,
|
|
.parent = TYPE_ISA_DEVICE,
|
|
.instance_size = sizeof(ISAIPMIBTDevice),
|
|
.instance_init = isa_ipmi_bt_init,
|
|
.class_init = isa_ipmi_bt_class_init,
|
|
.interfaces = (InterfaceInfo[]) {
|
|
{ TYPE_IPMI_INTERFACE },
|
|
{ }
|
|
}
|
|
};
|
|
|
|
static void ipmi_register_types(void)
|
|
{
|
|
type_register_static(&isa_ipmi_bt_info);
|
|
}
|
|
|
|
type_init(ipmi_register_types)
|