From: John Snow <jsnow@redhat.com> To: qemu-devel@nongnu.org Cc: peter.maydell@linaro.org, jsnow@redhat.com, qemu-stable@nongnu.org, "Philippe Mathieu-Daudé" <philmd@redhat.com> Subject: [Qemu-devel] [PULL 3/3] hw/ide/atapi: Use the ldst API Date: Fri, 16 Aug 2019 19:16:09 -0400 Message-ID: <20190816231609.9521-4-jsnow@redhat.com> (raw) In-Reply-To: <20190816231609.9521-1-jsnow@redhat.com> From: Philippe Mathieu-Daudé <philmd@redhat.com> The big-endian load/store functions are already provided by "qemu/bswap.h". Avoid code duplication, use the generic API. Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-id: 20190808130454.9930-1-philmd@redhat.com Signed-off-by: John Snow <jsnow@redhat.com> --- hw/ide/atapi.c | 80 ++++++++++++++++++-------------------------------- 1 file changed, 28 insertions(+), 52 deletions(-) diff --git a/hw/ide/atapi.c b/hw/ide/atapi.c index 1b0f66cc089..17a9d635d84 100644 --- a/hw/ide/atapi.c +++ b/hw/ide/atapi.c @@ -45,30 +45,6 @@ static void padstr8(uint8_t *buf, int buf_size, const char *src) } } -static inline void cpu_to_ube16(uint8_t *buf, int val) -{ - buf[0] = val >> 8; - buf[1] = val & 0xff; -} - -static inline void cpu_to_ube32(uint8_t *buf, unsigned int val) -{ - buf[0] = val >> 24; - buf[1] = val >> 16; - buf[2] = val >> 8; - buf[3] = val & 0xff; -} - -static inline int ube16_to_cpu(const uint8_t *buf) -{ - return (buf[0] << 8) | buf[1]; -} - -static inline int ube32_to_cpu(const uint8_t *buf) -{ - return (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3]; -} - static void lba_to_msf(uint8_t *buf, int lba) { lba += 150; @@ -485,7 +461,7 @@ static inline uint8_t ide_atapi_set_profile(uint8_t *buf, uint8_t *index, uint8_t *buf_profile = buf + 12; /* start of profiles */ buf_profile += ((*index) * 4); /* start of indexed profile */ - cpu_to_ube16 (buf_profile, profile); + stw_be_p(buf_profile, profile); buf_profile[2] = ((buf_profile[0] == buf[6]) && (buf_profile[1] == buf[7])); /* each profile adds 4 bytes to the response */ @@ -518,9 +494,9 @@ static int ide_dvd_read_structure(IDEState *s, int format, buf[7] = 0; /* default densities */ /* FIXME: 0x30000 per spec? */ - cpu_to_ube32(buf + 8, 0); /* start sector */ - cpu_to_ube32(buf + 12, total_sectors - 1); /* end sector */ - cpu_to_ube32(buf + 16, total_sectors - 1); /* l0 end sector */ + stl_be_p(buf + 8, 0); /* start sector */ + stl_be_p(buf + 12, total_sectors - 1); /* end sector */ + stl_be_p(buf + 16, total_sectors - 1); /* l0 end sector */ /* Size of buffer, not including 2 byte size field */ stw_be_p(buf, 2048 + 2); @@ -839,7 +815,7 @@ static void cmd_get_configuration(IDEState *s, uint8_t *buf) } /* XXX: could result in alignment problems in some architectures */ - max_len = ube16_to_cpu(buf + 7); + max_len = lduw_be_p(buf + 7); /* * XXX: avoid overflow for io_buffer if max_len is bigger than @@ -859,16 +835,16 @@ static void cmd_get_configuration(IDEState *s, uint8_t *buf) * to use as current. 0 means there is no media */ if (media_is_dvd(s)) { - cpu_to_ube16(buf + 6, MMC_PROFILE_DVD_ROM); + stw_be_p(buf + 6, MMC_PROFILE_DVD_ROM); } else if (media_is_cd(s)) { - cpu_to_ube16(buf + 6, MMC_PROFILE_CD_ROM); + stw_be_p(buf + 6, MMC_PROFILE_CD_ROM); } buf[10] = 0x02 | 0x01; /* persistent and current */ len = 12; /* headers: 8 + 4 */ len += ide_atapi_set_profile(buf, &index, MMC_PROFILE_DVD_ROM); len += ide_atapi_set_profile(buf, &index, MMC_PROFILE_CD_ROM); - cpu_to_ube32(buf, len - 4); /* data length */ + stl_be_p(buf, len - 4); /* data length */ ide_atapi_cmd_reply(s, len, max_len); } @@ -878,7 +854,7 @@ static void cmd_mode_sense(IDEState *s, uint8_t *buf) int action, code; int max_len; - max_len = ube16_to_cpu(buf + 7); + max_len = lduw_be_p(buf + 7); action = buf[2] >> 6; code = buf[2] & 0x3f; @@ -886,7 +862,7 @@ static void cmd_mode_sense(IDEState *s, uint8_t *buf) case 0: /* current values */ switch(code) { case MODE_PAGE_R_W_ERROR: /* error recovery */ - cpu_to_ube16(&buf[0], 16 - 2); + stw_be_p(&buf[0], 16 - 2); buf[2] = 0x70; buf[3] = 0; buf[4] = 0; @@ -905,7 +881,7 @@ static void cmd_mode_sense(IDEState *s, uint8_t *buf) ide_atapi_cmd_reply(s, 16, max_len); break; case MODE_PAGE_AUDIO_CTL: - cpu_to_ube16(&buf[0], 24 - 2); + stw_be_p(&buf[0], 24 - 2); buf[2] = 0x70; buf[3] = 0; buf[4] = 0; @@ -924,7 +900,7 @@ static void cmd_mode_sense(IDEState *s, uint8_t *buf) ide_atapi_cmd_reply(s, 24, max_len); break; case MODE_PAGE_CAPABILITIES: - cpu_to_ube16(&buf[0], 30 - 2); + stw_be_p(&buf[0], 30 - 2); buf[2] = 0x70; buf[3] = 0; buf[4] = 0; @@ -946,11 +922,11 @@ static void cmd_mode_sense(IDEState *s, uint8_t *buf) buf[14] |= 1 << 1; } buf[15] = 0x00; /* No volume & mute control, no changer */ - cpu_to_ube16(&buf[16], 704); /* 4x read speed */ + stw_be_p(&buf[16], 704); /* 4x read speed */ buf[18] = 0; /* Two volume levels */ buf[19] = 2; - cpu_to_ube16(&buf[20], 512); /* 512k buffer */ - cpu_to_ube16(&buf[22], 704); /* 4x read speed current */ + stw_be_p(&buf[20], 512); /* 512k buffer */ + stw_be_p(&buf[22], 704); /* 4x read speed current */ buf[24] = 0; buf[25] = 0; buf[26] = 0; @@ -998,12 +974,12 @@ static void cmd_read(IDEState *s, uint8_t* buf) int nb_sectors, lba; if (buf[0] == GPCMD_READ_10) { - nb_sectors = ube16_to_cpu(buf + 7); + nb_sectors = lduw_be_p(buf + 7); } else { - nb_sectors = ube32_to_cpu(buf + 6); + nb_sectors = ldl_be_p(buf + 6); } - lba = ube32_to_cpu(buf + 2); + lba = ldl_be_p(buf + 2); if (nb_sectors == 0) { ide_atapi_cmd_ok(s); return; @@ -1017,7 +993,7 @@ static void cmd_read_cd(IDEState *s, uint8_t* buf) int nb_sectors, lba, transfer_request; nb_sectors = (buf[6] << 16) | (buf[7] << 8) | buf[8]; - lba = ube32_to_cpu(buf + 2); + lba = ldl_be_p(buf + 2); if (nb_sectors == 0) { ide_atapi_cmd_ok(s); @@ -1057,7 +1033,7 @@ static void cmd_seek(IDEState *s, uint8_t* buf) unsigned int lba; uint64_t total_sectors = s->nb_sectors >> 2; - lba = ube32_to_cpu(buf + 2); + lba = ldl_be_p(buf + 2); if (lba >= total_sectors) { ide_atapi_cmd_error(s, ILLEGAL_REQUEST, ASC_LOGICAL_BLOCK_OOR); return; @@ -1098,15 +1074,15 @@ static void cmd_start_stop_unit(IDEState *s, uint8_t* buf) static void cmd_mechanism_status(IDEState *s, uint8_t* buf) { - int max_len = ube16_to_cpu(buf + 8); + int max_len = lduw_be_p(buf + 8); - cpu_to_ube16(buf, 0); + stw_be_p(buf, 0); /* no current LBA */ buf[2] = 0; buf[3] = 0; buf[4] = 0; buf[5] = 1; - cpu_to_ube16(buf + 6, 0); + stw_be_p(buf + 6, 0); ide_atapi_cmd_reply(s, 8, max_len); } @@ -1116,7 +1092,7 @@ static void cmd_read_toc_pma_atip(IDEState *s, uint8_t* buf) int max_len; uint64_t total_sectors = s->nb_sectors >> 2; - max_len = ube16_to_cpu(buf + 7); + max_len = lduw_be_p(buf + 7); format = buf[9] >> 6; msf = (buf[1] >> 1) & 1; start_track = buf[6]; @@ -1154,15 +1130,15 @@ static void cmd_read_cdvd_capacity(IDEState *s, uint8_t* buf) uint64_t total_sectors = s->nb_sectors >> 2; /* NOTE: it is really the number of sectors minus 1 */ - cpu_to_ube32(buf, total_sectors - 1); - cpu_to_ube32(buf + 4, 2048); + stl_be_p(buf, total_sectors - 1); + stl_be_p(buf + 4, 2048); ide_atapi_cmd_reply(s, 8, 8); } static void cmd_read_disc_information(IDEState *s, uint8_t* buf) { uint8_t type = buf[1] & 7; - uint32_t max_len = ube16_to_cpu(buf + 7); + uint32_t max_len = lduw_be_p(buf + 7); /* Types 1/2 are only defined for Blu-Ray. */ if (type != 0) { @@ -1196,7 +1172,7 @@ static void cmd_read_dvd_structure(IDEState *s, uint8_t* buf) int format = buf[7]; int ret; - max_len = ube16_to_cpu(buf + 8); + max_len = lduw_be_p(buf + 8); if (format < 0xff) { if (media_is_cd(s)) { -- 2.21.0
next prev parent reply index Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-08-16 23:16 [Qemu-devel] [PULL 0/3] Ide patches John Snow 2019-08-16 23:16 ` [Qemu-devel] [PULL 1/3] dma-helpers: ensure AIO callback is invoked after cancellation John Snow 2019-08-16 23:16 ` [Qemu-devel] [PULL 2/3] Revert "ide/ahci: Check for -ECANCELED in aio callbacks" John Snow 2019-08-16 23:16 ` John Snow [this message] 2019-08-19 13:13 ` [Qemu-devel] [PULL 0/3] Ide patches Peter Maydell
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