# HG changeset patch
# User Louis Opter <louis@lse.epitech.net>
# Date 1326030423 -3600
# Node ID d761c8c625d39f724bcca2ad797e99a8b269b350
# Parent  f43900ad7e663e2aa8237318041b2afa5dd6fd2e
Try to read a register on the card

diff -r f43900ad7e66 -r d761c8c625d3 rathaxes_add_lkm_ethernet_sample.patch
--- a/rathaxes_add_lkm_ethernet_sample.patch	Sun Jan 08 01:51:34 2012 +0100
+++ b/rathaxes_add_lkm_ethernet_sample.patch	Sun Jan 08 14:47:03 2012 +0100
@@ -14,18 +14,18 @@
 --- /dev/null
 +++ b/rathaxes/samples/lkm/CMakeLists.txt
 @@ -0,0 +1,7 @@
-+ADD_RATHAXES_SOURCES(lkm lkm.rtx
++ADD_RATHAXES_SOURCES(lkm_src lkm.rtx
 +                     RTI log.rti lkm.rti pci.rti socket.rti ethernet.rti e1000.rti
 +                     BLT log.blt lkm.blt pci.blt socket.blt ethernet.blt e1000.blt)
 +
 +# We can't name lkm since it's already used as the target name to generate the
 +# source (with ADD_RATHAXES_SOURCES).
-+ADD_RATHAXES_LKM(lkm_hello lkm)
++ADD_RATHAXES_LKM(lkm lkm_src)
 diff --git a/rathaxes/samples/lkm/e1000.blt b/rathaxes/samples/lkm/e1000.blt
 new file mode 100644
 --- /dev/null
 +++ b/rathaxes/samples/lkm/e1000.blt
-@@ -0,0 +1,80 @@
+@@ -0,0 +1,170 @@
 +with e1000, Ethernet, Socket, PCI, LKM, Log
 +{
 +    template type   e1000::Context()
@@ -38,7 +38,7 @@
 +             * (we hacked a bit and used it in ethernet.blt directly).
 +             */
 +            typedef int ${e1000::Context}; /* CNorm __std__ workaround */
-+            ${e1000::Context} force_declaration_in_includes;
++            static const ${e1000::Context} force_struct_rtx_10000_ctx_decl;
 +        }
 +
 +        chunk   ::decl()
@@ -50,6 +50,45 @@
 +            };
 +        }
 +
++        chunk   ::init(bars, ioaddr)
++        {
++            ${self}.bars = ${bars};
++            ${self}.ioaddr = ${ioaddr};
++        }
++
++        map
++        {
++        }
++    }
++
++    template type   e1000::Register()
++    {
++        chunk   LKM::includes()
++        {
++            typedef int ${e1000::Register};
++            static const ${e1000::Register}  force_enum_rtx_e1000_registers_decl;
++        }
++
++        chunk   ::decl()
++        {
++            enum rtx_e1000_registers
++            {
++                E1000_CTRL = 0x00000,
++                E1000_CTRL_DUP = 0x00004,
++                E1000_STATUS = 0x00008,
++                E1000_EEPROM_FLASH = 0x00010,
++                E1000_EEPROM_READ = 0x00014,
++                E1000_CTRL_EXT = 0x00018,
++                E1000_FLA = 0x0001C,
++                E1000_MDIC = 0x00020,
++            };
++        }
++
++        chunk   ::init(value)
++        {
++            ${self} = ${value};
++        }
++
 +        map
 +        {
 +        }
@@ -81,6 +120,36 @@
 +            {
 +                ${Log::info("e1000::create: pci_ioremap_bar failed")};
 +            }
++
++            /* Now we can reset the card and load its mac address */
++
++            /*
++             * We should have been able to do something along those lines, but
++             * it didn't work so we made the call manually.
++             *
++             * Ideally:
++             * ${e1000::register_read32(rtx_ether_ctx->hw_ctx, E1000_STATUS)};
++             *
++             * Ideally2, not sure about the syntax on the register parameter:
++             * ${e1000::register_read32(rtx_ether_ctx->hw_ctx, ${e1000::Register.E1000_STATUS})};
++             *
++             * "Acceptable":
++             * typedef int ${e1000::Register}; // cnorm __std__ workaround
++             * ${e1000::Register} reg_status;
++             * ${e1000.init(E1000_STATUS); // didn't work, so we used the next line
++             * reg_status = E1000_STATUS;
++             * ${e1000::register_read32(rtx_ether_ctx->hw_ctx, reg_status)};
++             *
++             */
++
++            unsigned int status = rtx_e1000_register_read32(&rtx_ether_ctx->hw_ctx, E1000_STATUS);
++
++            pr_info("Status of the e1000 card:\n");
++            pr_info("\tStatus: %i\n", status);
++            pr_info("\tMode: %s\n", (status & 1) ? "Full": "Half");
++            pr_info("\tLink: %s\n", (status & 2) ? "UP" : "Down");
++            pr_info("\tTransmission: %s\n", (status & 4) ? "Paused" : "Ok");
++            pr_info("\tInterface: %s\n", (status & 3) == 3 ? "UP" : "Down");
 +        }
 +
 +        chunk ::CALL
@@ -105,15 +174,37 @@
 +        {
 +        }
 +    }
++
++    template sequence   e1000::register_read32(e1000::Context ctx, e1000::Register reg_offset)
++    {
++        chunk   LKM::prototypes()
++        {
++            static unsigned int    rtx_e1000_register_read32(struct rtx_e1000_ctx *, unsigned int);
++        }
++
++        chunk   LKM::code()
++        {
++            static unsigned int    rtx_e1000_register_read32(struct rtx_e1000_ctx *ctx, unsigned int reg_offset)
++            {
++                return ioread32(ctx->ioaddr + reg_offset);
++            }
++        }
++
++        chunk   ::CALL()
++        {
++            rtx_e1000_register_read32(&${ctx}, ${reg_offset});
++        }
++    }
 +}
 diff --git a/rathaxes/samples/lkm/e1000.rti b/rathaxes/samples/lkm/e1000.rti
 new file mode 100644
 --- /dev/null
 +++ b/rathaxes/samples/lkm/e1000.rti
-@@ -0,0 +1,24 @@
+@@ -0,0 +1,39 @@
 +interface e1000 : Socket, Ethernet, PCI, LKM
 +{
 +    provided type   e1000::Context;
++    provided type   e1000::Register;
 +
 +    /*
 +     * This sequence should receive an argument like Ethernet::Device, but it is
@@ -134,6 +225,20 @@
 +        provided chunk  Ethernet::destroy_device;
 +        provided chunk  ::CALL;
 +    }
++
++    /*
++     * It should also take an e1000::Context argument as the first parameter.
++     * But we weren't able to call the sequence afterwards, with expression
++     * like:
++     *
++     * ${e1000::register_read32(rtx_ether_ctx->hw_ctx, E1000_STATUS)};
++     */
++    provided sequence   e1000::register_read32(e1000::Context, e1000::Register)
++    {
++        provided chunk  LKM::prototypes;
++        provided chunk  LKM::code;
++        provided chunk  ::CALL;
++    }
 +}
 diff --git a/rathaxes/samples/lkm/ethernet.blt b/rathaxes/samples/lkm/ethernet.blt
 new file mode 100644